CN118812127A - A mud thickening system - Google Patents
A mud thickening system Download PDFInfo
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- CN118812127A CN118812127A CN202310408443.3A CN202310408443A CN118812127A CN 118812127 A CN118812127 A CN 118812127A CN 202310408443 A CN202310408443 A CN 202310408443A CN 118812127 A CN118812127 A CN 118812127A
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- wall plate
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- dewatering
- water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
本发明公开一种泥浆浓缩系统，包括高效浓密机和由进料部，脱水筒，螺旋轴，排料部，背压板，电机动力装置，槽体和溢流口组成的叠螺式污泥脱水机主机。本发明，高效浓密机对泥水进行预分离而获得含固率较高的较浓泥浆，较浓泥浆进入叠螺式污泥脱水机主机进行进一步泥水分离，获得含固率更高的浓泥浆。本发明对泥水进行预浓缩，获得浓泥浆，从而有效降低后续压滤工段的投资成本和运行成本。本发明的叠螺式污泥脱水机主机具有处理能力大、使用寿命长等特点。相较于常规的叠螺式污泥脱水机主机，本发明的叠螺式污泥脱水机主机处理能力可提升70%以上。
The present invention discloses a mud thickening system, including a high-efficiency thickener and a spiral stack sludge dewatering machine main unit consisting of a feed part, a dewatering cylinder, a screw shaft, a discharge part, a back pressure plate, a motor power device, a tank body and an overflow port. In the present invention, the high-efficiency thickener pre-separates mud and water to obtain a relatively concentrated mud with a higher solid content, and the relatively concentrated mud enters the spiral stack sludge dewatering machine main unit for further mud and water separation to obtain a concentrated mud with a higher solid content. The present invention pre-concentrates mud and water to obtain concentrated mud, thereby effectively reducing the investment cost and operating cost of subsequent filter press sections. The spiral stack sludge dewatering machine main unit of the present invention has the characteristics of large processing capacity and long service life. Compared with the conventional spiral stack sludge dewatering machine main unit, the processing capacity of the spiral stack sludge dewatering machine main unit of the present invention can be increased by more than 70%.
Description
Technical Field
The invention relates to the field of slurry concentration, in particular to a slurry concentration system.
Background
The spiral-pile type sludge dewatering machine is excellent mud water dewatering equipment, and mainly comprises a coagulation box and a spiral-pile type sludge dewatering machine main machine, wherein the spiral-pile type sludge dewatering machine main machine has standard JB/T12578-2015 for manufacturing products. The main components of the stacked spiral sludge dewatering machine comprise a feeding part, a spiral shaft, a fixed ring, a movable ring, a back pressing plate and a discharging part, wherein the fixed ring and the movable ring are mutually stacked to form a dewatering cylinder, and the spiral shaft penetrates through the dewatering cylinder. The working area of the dewatering cylinder can be divided into a concentration section near the feeding part and a dewatering section near the discharging part, and the sum of the length of the concentration section and the length of the dewatering section is equal to a fixed value. The lengths of the concentration section and the dehydration section are not fixed and are influenced by the solid content of the muddy water entering the dehydration barrel; the mud water solid content is low, the length of the concentration section is long, and the length of the dehydration section is short; the mud water has high solid content, the length of the concentration section is short, and the length of the dehydration section is long. In the concentration section, under the action of gravity, screw shaft rotary extrusion and the like, mud and water are quickly separated to form slurry, and in the dehydration section, the slurry is further subjected to mud and water separation under the screw shaft rotary extrusion to obtain thick slurry or mud cake. The equipment has the advantages that: the dewatering energy consumption is low, the filtering surface is self-cleaned, the operation is stable, the occupied area is small, and the control and management are relatively simple. For biochemical sludge, the spiral-fold type sludge dehydrator can produce thick mud slurry with the solid content of 5% -10% or mud cakes with the solid content of 15% -25% according to requirements. When the spiral-pile type sludge dewatering machine is used for producing thick mud, the spiral-pile type sludge dewatering machine can be also called as a spiral-pile type sludge thickening machine.
Observing the operation condition of a conventional stacked spiral sludge dewatering machine host: under the condition that the mud water enters a certain amount and the filtered water of the dewatering cylinder is clear, the filtered water amount at the bottom of the concentrating section of the dewatering cylinder is larger than that at the top of the concentrating section of the dewatering cylinder; the mud water entering amount is increased, the filtered water amount at the bottom of the dewatering barrel concentration section is increased, turbidity appears, and at the moment, the filtered water at the top of the dewatering barrel concentration section is still clear; continuously increasing the mud water inlet amount, continuously increasing the filtered water amount at the bottom of the dewatering barrel concentration section, and increasing the turbidity of the filtered water, so that a large amount of mud penetrates the dewatering barrel. The conventional stacked spiral sludge dewatering machine main machine has the advantages that the dewatering cylinders are not soaked in filtered water, and for the permeable gaps between the same fixed ring and the movable ring, the filtered water volume of a section of dewatering gap with the length of 1 cm is reduced along with the increase of the height of the section of dewatering gap with the length of 1 cm, and the reason is that the pressure difference between the inside and the outside of the dewatering cylinders of each section of dewatering gap with the length of 1 cm is reduced along with the increase of the height; under normal conditions, the pressure difference between the inside and the outside of the dewatering cylinder at the bottommost end of the permeable gap is maximum, the filtered water volume is maximum, the water flow speed is maximum, the pressure difference between the inside and the outside of the dewatering cylinder at the topmost end of the permeable gap is minimum, the filtered water volume is minimum, and the water flow speed is minimum; if the pressure difference between the inside and the outside of the dehydration cylinder at each position of the same water permeable gap is equal to the pressure difference between the inside and the outside of the dehydration cylinder at the bottommost end of the water permeable gap, the water flow speed at each position of the water permeable gap is equal to the water flow speed at the bottommost end of the water permeable gap, and then the processing capacity of the stacked spiral type sludge dewatering machine main machine is obviously improved.
The conventional stacked spiral sludge dewatering machine main machine is matched with a coagulation box for use, muddy water and flocculant PAM are mixed in the coagulation box, and flow out through an overflow port at the upper part of the coagulation box and enter the stacked spiral sludge dewatering machine main machine. The throughput of the main frame of the spiral stack sludge dewatering machine is measured in terms of the weight of absolute sludge passing through each hour. In a certain mud water solid content range, the treatment capacity of the spiral-fold type sludge dewatering machine is in direct proportion to the mud water solid content. The higher the solid content of the mud water entering the main machine of the spiral-superposition type sludge dewatering machine, the shorter the length of the concentrating section of the dewatering cylinder, the longer the dewatering section of the dewatering cylinder, and the larger the processing capacity of the main machine of the spiral-superposition type sludge dewatering machine.
The high-efficiency thickener (patent number 2022218592174) can be used for carrying out rapid mud-water separation on mud mixed with flocculant PAM, so as to obtain mud with higher solid content.
The invention develops a mud concentration system which uses a main machine of a spiral-fold type mud dehydrator and has high processing capacity, and aims to solve the problem.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a mud concentration system.
To achieve the purpose, the invention adopts the following technical scheme:
The slurry concentration system comprises a feeding part, a dewatering cylinder, a screw shaft, a discharging part, a back pressure plate and a motor power device, wherein the feeding part is communicated with one end of the dewatering cylinder, the other end of the dewatering cylinder is communicated with the discharging part, the screw shaft is arranged in the feeding part, the dewatering cylinder and the discharging part, the screw shaft is provided with screw blades, the screw shaft is in transmission connection with the motor power device, the dewatering cylinder comprises a plurality of fixed rings, a plurality of movable rings, a plurality of screws, a plurality of gaskets, the fixed rings and the movable rings are mutually overlapped, the periphery of the fixed rings is provided with a plurality of screws, the fixed rings are sleeved on the screws, the gaskets are sleeved between the adjacent two fixed rings on the screws, the fixed rings and the movable rings are sleeved on the screw shaft, the feeding part is provided with a feeding port, the back pressure plate is arranged in the discharge part, the back pressure plate is sleeved on the spiral shaft and further comprises a groove body and an overflow port, the groove body comprises a front wall plate, a rear wall plate, a left wall plate, a right wall plate and a bottom plate, the front wall plate is in sealing connection with the left wall plate, the front wall plate is in sealing connection with the right wall plate, the rear wall plate is in sealing connection with the left wall plate, the bottom plate is in sealing connection with the front wall plate, the bottom plate is in sealing connection with the rear wall plate, the bottom plate is in sealing connection with the left wall plate, the bottom plate is in sealing connection with the right wall plate, the dehydration cylinder is arranged in the groove body, a hole used for the spiral shaft to pass through is formed in the rear wall plate, one side of the rear wall plate is connected with one end of the dehydration cylinder, the other side of the rear wall plate is connected with the discharge part, and the groove body is communicated with the overflow port.
Preferably, the tank body is provided with a tank body water outlet, the tank body water outlet is connected with an overflow pipe, and an overflow port is arranged on the overflow pipe.
Preferably, the front wall plate is provided with a hole for the screw shaft to pass through, one side of the front wall plate is connected with the feeding part, and the other side of the front wall plate is connected with the other end of the dewatering drum.
Preferably, a feed port of the feed part is communicated with a slurry outlet of the high-efficiency thickener.
Preferably, a rotary pressing plate is arranged inside the efficient thickener.
Preferably, a spring is arranged in the discharging part.
Preferably, a limit base is arranged in the discharging part, the limit base is sleeved on the screw shaft, a fastening bolt is arranged on the limit base, the back pressure plate is connected with the limit rod, the limit base is provided with a hole for the limit rod to pass through, a spring is arranged in the discharging part, the spring is sleeved on the limit rod, and the spring is arranged between the back pressure plate and the limit base.
Preferably, a spray pipe is arranged above the dewatering cylinder and is communicated with a clear water outlet of the high-efficiency thickener, and a spray pipe is arranged at the lower part of the tank body and is communicated with the clear water outlet of the high-efficiency thickener.
Preferably, the included angle between the axis of the screw shaft and the horizontal plane is 0-45 degrees.
Preferably, the tank body is provided with a top cover.
In combination with the technical scheme, the invention has the beneficial effects that:
(1) The main machine of the spiral-pile type sludge dewatering machine is provided with the relatively closed tank body and the overflow port, part or all of the dewatering cylinders are soaked in filtered water in the operation process, and the pressure difference inside and outside the dewatering cylinders at the whole permeable gap is nearly equal to that of the permeable gap between the same fixed ring and the same movable ring, so that the processing capacity of the main machine of the spiral-pile type sludge dewatering machine can be improved by more than 70% compared with that of the main machine of the conventional spiral-pile type sludge dewatering machine on the premise of ensuring that the filtered water is clear.
(2) The invention is provided with the high-efficiency thickener, the high-efficiency thickener can pre-separate mud and water mixed with flocculant PAM, the solid content of mud entering the main machine of the spiral-fold type sludge dewatering machine is improved, the length of a concentrating section of a dewatering cylinder is shortened, and the length of a dewatering section of the dewatering cylinder is increased, so that the processing capacity of the main machine of the spiral-fold type sludge dewatering machine is improved.
(3) When organic sludge such as biochemical sludge is treated, the sludge with higher solid content serves as a lubricant for moving friction between the spiral blade and the movable ring, so that abrasion is reduced, and compared with a conventional stacked spiral sludge dewatering machine main machine, the stacked spiral sludge dewatering machine main machine disclosed by the invention has longer service life.
(4) The invention pre-concentrates the muddy water to obtain thick mud, thereby effectively reducing the investment cost and the running cost of the subsequent filter pressing working section.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention, given by way of illustration only, together with the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a main machine structure of a spiral sludge dewatering machine of the invention.
Fig. 2 is a schematic top view of a main machine of the spiral sludge dewatering machine.
Fig. 3 is a schematic diagram of the system of the present invention.
In the figure: the feeding section 10, the feeding port 101, the dewatering drum 11, the screw shaft 12, the discharging section 13, the motor power device 131, the back pressure plate 14, the limit base 141, the fastening bolt 142, the limit rod 143, the spring 144, the tank body 15, the front wall plate 151, the rear wall plate 152, the left wall plate 153, the right wall plate 154, the bottom plate 155, the tank body water outlet 16, the overflow pipe 17, the overflow port 18, the low overflow port 181, the middle overflow port 182, the high overflow port 183, the low water outlet 184, the valve 185, the spray pipe 19, the spray pipe 191, the high-efficiency thickener 20, the muddy water inlet 21, the slurry outlet 22, the clear water outlet 23, and the spinning plate 24.
Description of the embodiments
As shown in fig. 1,2 and 3, a slurry concentration system comprises a feeding part 10, a dewatering cylinder 11, a screw shaft 12, a discharging part 13, a back pressure plate 14 and a motor power device 131, wherein the feeding part 10 is communicated with one end of the dewatering cylinder 11, the other end of the dewatering cylinder 11 is communicated with the discharging part 13, the screw shaft 12 is arranged in the feeding part 10, the dewatering cylinder 11 and the discharging part 13, the screw shaft 12 is provided with screw blades, the screw shaft 12 is in transmission connection with the motor power device 131, the dewatering cylinder 11 comprises a plurality of fixed rings, a plurality of movable rings, a plurality of screws and a plurality of gaskets, the fixed rings and the movable rings are mutually overlapped, The periphery of the fixed rings is provided with a plurality of screws, the fixed rings are sleeved on the screws, gaskets are sleeved between two adjacent fixed rings on the screws, the fixed rings and the movable rings are sleeved on the screw shaft 12, the feeding part 10 is provided with a feeding port 101, the back pressure plate 14 is arranged in the discharging part 13, the back pressure plate 14 is sleeved on the screw shaft 12, the device further comprises a groove body 15 and an overflow port 18, the groove body 15 comprises a front wall plate 151, a rear wall plate 152, a left wall plate 153, a right wall plate 154 and a bottom plate 155, the front wall plate 151 and the left wall plate 153 are in sealing connection, the front wall plate 151 and the right wall plate 154 are in sealing connection, the back wallboard 152 and the left wallboard 153 sealing connection, back wallboard 152 and right wallboard 154 sealing connection, bottom plate 155 and preceding wallboard 151 sealing connection, bottom plate 155 and back wallboard 152 sealing connection, bottom plate 155 and left wallboard 153 sealing connection, bottom plate 155 and right wallboard 154 sealing connection, dehydration section of thick bamboo 11 sets up inside cell body 15, back wallboard 152 is provided with the hole that is used for screw shaft 12 to pass, back wallboard 152 one side and dehydration section of thick bamboo 11 one end are connected, back wallboard 152 opposite side and discharge portion 13 are connected, cell body 15 intercommunication overflow mouth 18. The conventional stacked spiral sludge dewatering machine main machine has the advantages that the dewatering cylinders 11 are not soaked in filtered water, and for the permeable gaps between the same fixed ring and the movable ring, the filtered water volume of a certain section of the dewatering gap with the length of 1 cm is reduced along with the increase of the height of the dewatering gap with the length of 1 cm, and the reason is that the pressure difference between the inside and the outside of the dewatering cylinders 11 of each section of the dewatering gap with the length of 1 cm is reduced along with the increase of the height; normally, the pressure difference between the inside and the outside of the dewatering cylinder 11 at the bottommost end of the permeable gap is maximum, the filtered water volume is maximum, the water flow speed is maximum, the pressure difference between the inside and the outside of the dewatering cylinder 11 at the topmost end of the permeable gap is minimum, the filtered water volume is minimum, and the water flow speed is minimum; If the pressure difference between the inside and the outside of the dewatering cylinder 11 at each position of the same permeable gap is equal to the pressure difference between the inside and the outside of the dewatering cylinder 11 at the bottommost end of the permeable gap, the water flow speed at each position of the permeable gap is equal to the water flow speed at the bottommost end of the permeable gap, and then the processing capacity of the stacked spiral type sludge dewatering machine host machine is obviously improved. The feeding part 10, the dewatering cylinder 11, the screw shaft 12, the discharging part 13, the back pressing plate 14, the motor power device 131, the tank body 15 and the overflow port 18 are important components of the main machine of the spiral sludge dewatering machine. When the main machine of the spiral sludge dewatering machine of the invention initially operates, filtered water is accumulated in the tank body 15, the water level gradually rises along with the increase of the operation time, and after the water level rises to a certain position, the filtered water is discharged from the overflow port 18 to the tank body 15. When the main machine of the spiral-pile type sludge dewatering machine of the invention normally operates, part or all of the dewatering cylinders 11 are soaked in filtered water, and according to the physical principle, the pressure difference inside and outside the dewatering cylinders 11 at the whole permeable gap is nearly equal to the permeable gap between the same fixed ring and the movable ring soaked in the filtered water, so that the processing capacity of the main machine of the spiral-pile type sludge dewatering machine of the invention can be improved by more than 70% compared with that of the main machine of the conventional spiral-pile type sludge dewatering machine on the premise of ensuring the clarity of the filtered water. The rear wall plate 152 of the present invention is provided with holes for the screw shaft 12 to pass through, and both sides of the rear wall plate 152 are connected to the discharge portion 13 and the dewatering drum 11, respectively, in which case the dewatering drum 11 is disposed inside the tank 15, and the feed portion 10 may be disposed inside the tank 15 or outside the tank 15. One of the ways to provide the overflow 18 is: the overflow 18 may be provided directly on the left wall plate 153 or the right wall plate 154. When the overflow 18 is directly disposed on the left wall 153 or the right wall 154, the position of the water flowing out of the tank is a certain height from the bottom of the tank 15, so that for the slurry passing through the dewatering drum 11, the slurry is inconvenient to drain out of the tank 15 and may be accumulated in a large amount at the bottom of the tank 15, and thus the direct disposition of the overflow 18 on the left wall 153 or the right wall 154 is not the preferred mode of disposing the overflow 18 in the present invention.
Specifically, as shown in fig. 1, 2 and 3, the tank body 15 is provided with a tank body drain outlet 16, the tank body drain outlet 16 is connected with an overflow pipe 17, and an overflow port 18 is provided on the overflow pipe 17. The invention arranges the tank body water outlet 16 at the lower part of the left wall plate 153 or the right wall plate 154 of the tank body 15, and the filtered water and the mud passing through the dewatering drum 11 are discharged out of the tank body 15 through the tank body water outlet 16, the overflow pipe 17 and the overflow port 18, so as to avoid the mud accumulating in a large amount at the bottom of the tank body 15. To accommodate production requirements, a plurality of overflow ports 18 may be provided in overflow pipe 17. For example, when the overflow pipe 17 is a hard pipe, three overflow ports 18 with different heights are provided on the overflow pipe 17, namely a low overflow port 181, a middle overflow port 182 and a high overflow port 183, wherein the low overflow port 181 and the middle overflow port 182 are connected with a valve 185. When the low overflow port 181 is opened to connect the valve 185 for draining, one third of the dewatering drum 11 is soaked in the filtered water; when the low overflow port 181 is closed and connected with the valve 185, and the middle overflow port 182 is opened and connected with the valve 185 to drain, two thirds of the dewatering drum 11 is soaked in the filtered water; when the low overflow port 181 and the middle overflow port 182 are closed to connect the valve 185, and the high overflow port 183 is used for draining, the dewatering drum 11 is fully immersed in the filtered water. When the overflow pipe 17 is a hard pipeline, the overflow pipe 17 is provided with a low-level water outlet 184 and is connected with a valve 185, and the valve 185 connected with the low-level water outlet 184 is in a closed state in the normal operation process of the main machine of the spiral sludge dewatering machine. When the main machine of the spiral sludge dewatering machine needs to carry out equipment cleaning maintenance, the valve 185 of the low-level water outlet 184 of the overflow pipe 17 is opened first, the waste water and slurry in the tank body 15 are emptied, then the equipment cleaning is carried out, and the cleaning water is also discharged out of the tank body 15 through the low-level water outlet 184. The tank body water outlet 16 can be connected with a hose as an overflow pipe 17, at this time, the overflow pipe 17 is not connected with one end of the tank body water outlet 16, namely an overflow port 18, the height of the overflow port 18 can be adjusted according to the requirement, the height adjustment is more convenient, the production requirement can be met, and in addition, the purpose of the low-level water outlet 184 can be realized.
Specifically, as shown in fig. 1 and 2, the front wall plate 151 is provided with a hole for the screw shaft 12 to pass through, one side of the front wall plate 151 is connected to the feeding portion 10, and the other side of the front wall plate 151 is connected to the other end of the dewatering drum 11. The front wall plate 151 and the rear wall plate 152 of the present invention are provided with holes for the screw shaft 12 to pass through, and both sides of the front wall plate 151 are respectively connected with the feeding portion 10 and the dewatering drum 11, in which case the dewatering drum 11 is disposed inside the tank body 15, and the feeding portion 10 is disposed outside the tank body 15.
Specifically, as shown in fig. 3, the feeding port 101 of the feeding portion 10 is connected to the slurry outlet 22 of the high-efficiency thickener 20. In the invention, a feeding port 101 of a feeding part 10 is connected with a slurry outlet 22 of a high-efficiency thickener 20 through a pipeline. The efficient thickener 20 is matched with the main machine of the spiral sludge dewatering machine, can pre-separate mud and water mixed with flocculant PAM, improves the solid content of mud entering the main machine of the spiral sludge dewatering machine, shortens the length of a concentrating section of the dewatering cylinder 11, and increases the length of a dewatering section of the dewatering cylinder 11, thereby improving the processing capacity of the main machine of the spiral sludge dewatering machine. In the operation process of the main machine of the spiral sludge dewatering machine, the motor power device 131 drives the spiral shaft 12 to rotate, and at the moment, moving friction is generated between the spiral blades on the spiral shaft 12 and the movable ring, so that the spiral blades and the movable ring are worn. When organic sludge such as biochemical sludge is treated, the organic sludge with higher solid content serves as a lubricant for moving friction between the spiral blade and the movable ring, so that abrasion is reduced, and compared with a conventional stacked spiral sludge dewatering machine main machine, the stacked spiral sludge dewatering machine main machine disclosed by the invention has longer service life.
Specifically, as shown in fig. 3, the high-efficiency thickener 20 is provided with a spinning plate 24 inside. A spinning plate 24 is provided in the high efficiency thickener 20. The muddy water mixed with the flocculating agent PAM enters the high-efficiency thickener 20, solids contained in the muddy water form floccules, the floccules of the solids are subjected to muddy water separation under the dual actions of self gravity and filtration of a filtration sedimentation layer in the high-efficiency thickener 20, the floccules of the solids are deposited in a sinking manner to form a thicker slurry layer with higher solid content, the motor power device 131 drives the rotary pressing plate 24 to rotate, the rotary pressing plate 24 extrudes thicker slurry below the rotary pressing plate 24, and the volume shrinkage and the water separation of the floccules of the solids in the thicker slurry layer are promoted, so that thicker slurry with higher solid content is obtained.
Specifically, as shown in fig. 1 and 2, a spring 144 is provided in the discharge portion 13. The present invention provides a spring 144 in the discharge portion 13. One way to provide the spring 144 is: the spring 144 is sleeved on the screw shaft 12, and the spring 144 is in contact with one side of the back pressing plate 14 which is not close to the dewatering drum 11. Under the action of the spring 144, the back pressure plate 14 always keeps approaching the dewatering cylinder 11, so that the back pressure plate 14 can be promoted to limit the discharge of the slurry in the dewatering cylinder 11 within a certain pressure range, and the slurry with the required solid content can be stably obtained. The arrangement of the spring 144 on the screw shaft 12 is troublesome in replacing the spring 144, and the motor power device 131 needs to be disassembled, which is not the preferred mode of arranging the spring 144 in the invention.
Specifically, as shown in fig. 1 and 2, a limit base 141 is disposed in the discharging portion 13, the limit base 141 is sleeved on the screw shaft 12, a fastening bolt 142 is disposed on the limit base 141, the back pressing plate 14 is connected with a limit rod 143, the limit base 141 is provided with a hole through which the limit rod 143 passes, a spring 144 is disposed in the discharging portion 13, the spring 144 is sleeved on the limit rod 143, and the spring 144 is disposed between the back pressing plate 14 and the limit base 141. According to the invention, the position of the limit base 141 on the screw shaft 12 is adjusted, the fastening bolt 142 on the limit base 141 is tightened, the limit base 141 is fixed on the screw shaft 12, the spring 144 is applied with a preset pressing force, the back pressing plate 14 is further applied with a preset pressing force, the back pressing plate 14 always keeps the trend of approaching the dewatering cylinder 11, the back pressing plate 14 can be caused to limit the discharge of mud in the dewatering cylinder 11 within a certain pressure range, and mud with the required solid content is stably obtained. The back pressure plate 14 is connected with the limiting rod 143 in the following ways: (1) The back pressing plate 14 and the limiting rod 143 are connected in a welding mode; (2) The back pressure plate 14 is provided with a screw hole, one end of the limiting rod 143 is threaded, the back pressure plate 14 is connected with the limiting rod 143 through the screw hole, and in order to enable the back pressure plate 14 to be connected with the limiting rod 143 more firmly, a nut and a spring pad can be arranged on the limiting rod 143. In the invention, the limiting rod 143 is connected with the back pressing plate 14 and the limiting base 141, wherein the limiting rod 143 can move back and forth in the hole of the limiting base 141, and the limiting base 141 is fixed on the screw shaft 12, so that the back pressing plate 14 can be ensured not to rotate relative to the screw shaft 12, and the screw shaft 12 is prevented from being worn due to the rotation of the back pressing plate 14. The spring 144 is sleeved on the limiting rod 143, so that the installation and the fixation are convenient, and meanwhile, the replacement of the spring 144 is also convenient. From the viewpoint of balanced stress, 2-4 limiting rods 143 are arranged, and the limiting rods 143 are uniformly distributed around the center of the back pressing plate 14.
Specifically, as shown in fig. 3, a spray pipe 19 is disposed above the dewatering cylinder 11, the spray pipe 19 is communicated with a clean water outlet 23 of the high-efficiency thickener 20, a spray pipe 191 is disposed at the lower part of the tank 15, and the spray pipe 191 is communicated with the clean water outlet 23 of the high-efficiency thickener 20. According to the stacked spiral sludge dewatering machine main machine, the spray pipe 19 is arranged above the dewatering cylinder 11, the spray pipe 19 is communicated with the clean water outlet 23 of the high-efficiency thickener 20, clean water discharged by the high-efficiency thickener 20 can be utilized to flush the surface of the dewatering cylinder 11 in real time, mud deposition on the surface of the dewatering cylinder 11 is prevented, and consumption of tap water and electric energy due to spray cleaning can be reduced. According to the main machine of the spiral sludge dewatering machine, the water spraying pipe 191 is arranged at the lower part of the tank body 15, the water spraying pipe 191 is communicated with the clean water outlet 23 of the high-efficiency thickener 20, and clean water discharged by the high-efficiency thickener 20 can be utilized to flush the bottom of the tank body 15 in real time, so that mud deposition at the bottom of the tank body 15 is prevented.
Specifically, as shown in fig. 1 and 3, the included angle between the axis of the screw shaft 12 and the horizontal plane is 0 ° to 45 °.
Specifically, the tank body 15 is provided with a top cover. According to the stacked spiral sludge dewatering machine main unit, the groove body 15 is provided with the top cover, and the groove body 15 is communicated with the air draft system, so that peculiar smell gas in the running process of equipment can be prevented from being scattered to the surrounding environment.
The invention is mainly used for pre-concentrating the muddy water to obtain thick mud. When the invention is used for matching a plate-and-frame filter press or a diaphragm plate-and-frame filter press, the invention pre-concentrates the muddy water, improves the solid content of the muddy water, reduces the volume of the muddy water, can reduce the configuration quantity of the plate-and-frame filter press or the diaphragm plate-and-frame filter press, can reduce the occupied area of equipment and can shorten the running time of filter pressing equipment, thereby reducing the investment cost and the running cost of the equipment.
As shown in fig. 1,2 and 3, the working process of the invention comprises the following steps:
(1) After the biochemical sludge mud water with the solid content of 0.8% is mixed with the flocculating agent PAM, the mixture enters the high-efficiency thickener 20 through the mud water inlet 21. In the high-efficiency thickener 20, solid matters contained in biochemical sludge muddy water form floccules, the floccules of the solid matters are subjected to mud-water separation under the dual actions of self gravity and filtration of a filtration sedimentation layer, clear water rises and is discharged out of the high-efficiency thickener 20 through a clear water discharge port 23; the solid floccules are sunk and accumulated to form a thicker slurry layer with the solid content of 2.5% -2.8%, the motor power device 131 drives the rotary pressing plate 24 to rotate, the rotary pressing plate 24 extrudes thicker slurry below the rotary pressing plate 24, the volume shrinkage and the water separation of the solid floccules in the thicker slurry layer are promoted, the thicker slurry with the solid content of 3% -4% is obtained, and the thicker slurry is discharged from the slurry outlet 22 of the high-efficiency thickener 20.
(2) The thicker mud with 3% -4% of solid content discharged from the mud outlet 22 of the high-efficiency thickener 20 enters one end of the dewatering cylinder 11 through the pipeline and the feeding port 101 of the feeding part 10, mud-water separation is carried out under the gravity and the rotary extrusion of the screw shaft 12, filtered water passes through the water permeable gap between the fixed ring and the movable ring and is discharged out of the tank body 15 through the tank body water outlet 16, the overflow pipe 17 and the overflow port 18, and the thicker mud with 5% -10% of solid content is discharged out of the main machine of the spiral sludge dewatering machine of the invention from the other end of the dewatering cylinder 11 and the discharging part 13.
(3) Most of clear water discharged from a clear water discharge port 23 of the high-efficiency thickener 20 is directly discharged into a ground pool, the rest flows to the main machine of the spiral sludge dewatering machine, and flows out through a spray pipe 19, sprays and washes the surface of a dewatering cylinder 11, and prevents slurry from depositing on the surface of the dewatering cylinder 11; flows out through the water spray pipe 191, flushes the bottom of the tank body 15, prevents mud from depositing at the bottom of the tank body 15, and finally is discharged out of the tank body 15 through the tank body water outlet 16, the overflow pipe 17 and the overflow port 18 to enter the ground pool.
The foregoing is illustrative of the present invention and is not to be construed as limiting thereof, and it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, which is also intended to be within the scope of the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310408443.3A CN118812127A (en) | 2023-04-17 | 2023-04-17 | A mud thickening system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310408443.3A CN118812127A (en) | 2023-04-17 | 2023-04-17 | A mud thickening system |
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| CN118812127A true CN118812127A (en) | 2024-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310408443.3A Pending CN118812127A (en) | 2023-04-17 | 2023-04-17 | A mud thickening system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008049275A (en) * | 2006-08-25 | 2008-03-06 | Kurita Water Ind Ltd | Sludge concentrator |
| JP2010058039A (en) * | 2008-09-03 | 2010-03-18 | Kurita Water Ind Ltd | Sludge dewatering apparatus and sludge dewatering method |
| WO2012031505A1 (en) * | 2010-09-07 | 2012-03-15 | 大连涌清水处理技术有限公司 | Volute sludge dehydrater |
| CN202898191U (en) * | 2012-09-19 | 2013-04-24 | 东台市通港过滤分离环保设备有限公司 | Stacked ring type dehydrator with overflow opening |
| CN104909441A (en) * | 2015-06-05 | 2015-09-16 | 江苏立业环境科技有限公司 | Volute sewage treatment system |
| KR102267921B1 (en) * | 2021-03-05 | 2021-06-22 | (주)에이알케이 | Sludge dewatering device with forced discharge structure of cake |
| CN218221476U (en) * | 2022-07-19 | 2023-01-06 | 深圳佰思嘉科技有限公司 | High-efficiency thickener |
-
2023
- 2023-04-17 CN CN202310408443.3A patent/CN118812127A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008049275A (en) * | 2006-08-25 | 2008-03-06 | Kurita Water Ind Ltd | Sludge concentrator |
| JP2010058039A (en) * | 2008-09-03 | 2010-03-18 | Kurita Water Ind Ltd | Sludge dewatering apparatus and sludge dewatering method |
| WO2012031505A1 (en) * | 2010-09-07 | 2012-03-15 | 大连涌清水处理技术有限公司 | Volute sludge dehydrater |
| CN202898191U (en) * | 2012-09-19 | 2013-04-24 | 东台市通港过滤分离环保设备有限公司 | Stacked ring type dehydrator with overflow opening |
| CN104909441A (en) * | 2015-06-05 | 2015-09-16 | 江苏立业环境科技有限公司 | Volute sewage treatment system |
| KR102267921B1 (en) * | 2021-03-05 | 2021-06-22 | (주)에이알케이 | Sludge dewatering device with forced discharge structure of cake |
| CN218221476U (en) * | 2022-07-19 | 2023-01-06 | 深圳佰思嘉科技有限公司 | High-efficiency thickener |
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