KR200188813Y1 - Collection apparatus for sludge of dry pit - Google Patents

Abstract

The present invention relates to a sludge collection device of a dry pit for easily treating sludge mixed in circulating cooling water generated during a slag cooling operation, the technical configuration of which is a dry pit drainage connected to one side of the dry pit. A brush inserted into the screen and connected to a hoist to collect the aggregates, a brush connected to a motor installed to settle sludge in the dry pit pond connected to the dry pit pipe, and one side of the dry pit pond It consists of a sedimentation tank connected to the transfer pipe is installed in the pump and the check valve, and a storage tank connected to the transfer pipe is installed so as to transfer from the upper side of the rail to form a drain hole on the upper side. .

Description

Sludge collection device of dry pit {COLLECTION APPARATUS FOR SLUDGE OF DRY PIT}

The present invention relates to a sediment collecting device that accumulates in the lower part of the dry pit pond during the aggregate treatment (SL) of slag in the melt discharged from the molten material, which occurs especially during slag cooling operation. It relates to a sludge collection device of a dry pit to easily process the sludge mixed in the circulating cooling water.

In general, applications excavated and excavated by a single opener from the exit of the blast furnace are discharged to the exit and separated by SKIMMER at Daetang Island. The light slag (SLAG) is treated with water (cement raw material) or aggregate (for landfill). When the aggregate treatment is requested, slag builds up inside the pit when guided to the dry pit.

When slag flows into the dry pits, there is a high possibility of explosion, so after stopping the spraying and finishing the exit melt discharge, dry dry pump (DRY PIT PUMP), which is a slag sprayer Concentrated watering where the slag is stored in the middle, the continuous slag is cooled by circulation.

The water stored in DRY PIT RETURN POND is not pure water but mixed with turbid water (water + sludge + waste water), and the turbid water in the dry fit pond 15 and 16 is precipitated. As time goes by, it becomes a problem in starting the pump due to sticking in the pond and clogging on the suction side of the pump.

The slag 12, which is a byproduct of the furnace, is continuously discharged at regular intervals, and the discharged slag must be cooled immediately. It should be good for the cooling effect so that it can be processed quickly quickly. Therefore, the PIT should be in a standby state that can be replaced at full water level.

This repetitive DRY PIT slag coolant must repeat the catch and sprinkle 13 at all times continuously. In this process, when water is sprinkled with dry feet (8-1) and (8-2), a part of the water is evaporated at a high temperature, and the water is recovered by dry feet ponds (15) and (16) again, and the stored water is sprinkled again by a pump. .

At this time, when the dry pit slag 12 is cooled, the coolant flows to the bottom of the pond, and when it enters the drain 14, the surface is scratched or fine sludge is mixed with the coolant and the sludge into the dry pit pond through the drain. (19) will penetrate.

The introduced sludge 19 accumulates from the dry pit primary pond 15 to the secondary pond 16 to reduce the amount of cooling water by half due to the reduction of the pond capacity (area), as well as the water sprinkled during cooling due to the high temperature generated from the slag itself. Water is a hot water furnace (a steam phenomenon occurs at a cooling water temperature of 80 ° C. or higher, which makes it hard to discern the naked eye when spraying water). Slag spraying (13) is also less effective, and the sludge in the pump line (PUMP LINE) 17 is reduced. Lack of pumping due to attachment and frequent equipment failures, and the small amount of dry pit pond, which reduces the actual dry pit slag cooling effect.There is a time delay and work load when crushing slag with equipment. Doing.

Whenever this problem occurs during operation, it is necessary to take measures to be able to remove the sludge 19 in a short period of time and cool down the slag at the same time by receiving equipment support such as excavator 20 and barium car 21. (DRY PIT POND) SLLIDGE is accumulating in the water.

The above equipment support must be adapted to the working conditions without the impact of the operation. Firstly: the sludge removal operation is not underground, but underground pit ponds, so people have to enter and adapt the equipment. In order to do this, the water collected in the dry pit pond should be completely removed to the first and second ponds so that the sludge 19 can be removed. No sludge can be removed by holding a hose when working barium car 21. Also, the equipment can not be used in the corner part inside the POND, and the sludge 19 is manually removed by the corner fixing sludge. To collect the barium car 21, and to facilitate the treatment with the barium car 21. Secondly, as the dry pit cooling treatment is used for a long time, the sludge first flows from the primary pond 15 to the secondary pond 16 when the sludge is accumulated. SLLIDGE accumulates and the pump inlet is not visible. If the pump is delayed for a long time due to frequent pump failures, the pump may operate such as sludge sticking around the pump inlet. When sludge accumulates inside the pond, the pump is operated, and the spray nozzle is clogged when the dry pit-side slag is sprayed and the cooling work is reduced. Is a fireball because it is not crushed and becomes a problem during the treatment of the lump, and there is a risk of burns due to the hot water spout by spraying the spraying nozzle every time the spraying work. Not only does the inlet penetrating work take a lot of time, but also delays in maintenance work cause trouble in the cooling of the dry pit slag, and the accumulated sludge (19) is fixed like a hard stone mass like cement, so that the sludge is not easily broken even by using the equipment. There is a problem that the time delay when working.

The present invention was devised to solve the above problems, and its purpose is to collect sludge of dry pit, which effectively and continuously settles and collects sludge generated in slag cooling process, which is a by-product of blast furnace, in drainage and dry pit pond. To provide a device.

1 is a schematic view showing a typical dry pit sprinkler

Figure 2 is a state diagram of the sludge removal operation in the conventional dry pit sprinkler

Figure 3 is a perspective view showing a sludge treatment state of the dry pit according to the present invention

Figure 4 is a perspective view of the main part showing a sludge collection device of a dry fit according to the present invention

Figure 5 is a schematic diagram showing a drain filtration device according to the present invention

6A and 6B are perspective views showing a brush and a sludge storage tank according to the present invention.

* Description of the symbols for the main parts of the drawings *

8-1, 8-2 dry fit

14 dry pit drains

15 dry fit primary ponds

16 dry fit secondary ponds

17 slag coolant pump

18 slag cooling inlet

Adhesion sludge in 19 dry fitting pond

22 screen (for removing lumps)

23 screen weighing machine

27-1, 27-2, 27-3 sludge storage tank

28 flute

32-1, 32-2 sludge pressure pump

Technical configuration for achieving the above object is, the screen is inserted into the dry pit drainage connected to one side of the dry pit connected to the hoist to collect the aggregates, and the dry pit pond connected to the dry pit pipe Brush is connected to the motor is installed to settle the sediment, the sedimentation tank is connected to the transfer pipe is installed on the bottom surface of the dry fit pond and the pump and the check valve is installed on one side, the upper side of the rail connected to the transfer pipe By providing a sludge collecting device of the dry pit is installed so as to transfer from, and comprises a storage tank in which a drain hole is formed.

Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings.

Figure 3 is a perspective view showing a sludge treatment state of the dry pit according to the present invention, Figure 4 is a perspective view showing the main portion of the sludge collection device of the dry pit according to the present invention, Figure 5 is a drain filtration device according to the present invention 6A and B are perspective views showing a brush and a sludge storage tank according to the present invention, and the present invention is made of a wire mesh so as to primarily collect lumps in a furnace dry pit drain 14. The sludge storage tanks 27-1, 27-1, 27-3, which are capable of storing and transporting the collected sludge, and the sludge that has passed through the screen in the drainage passage are formed in a circular shape. It consists of a pond.

The screen portion, as shown in Figure 5, is installed inside the drainage channel 14 to collect the lump primarily rectangular screen 22 of the wire mesh to the drainage height, this screen is a hoist 24 in the corner of the square Hooks are attached to connect the hook, and the wire rope 50 and the chain 51 connecting the screen 22 and the hosk 24 are configured. There is a weighing machine 23, and a control panel 25 for controlling the weighing machine 23 and the hoist 24 is provided on the hoist side wall.

On the other hand, as shown in Figure 6, there are three sludge storage tanks 27-1, 27-2, 27-3, each tank is made of steel plate in a rounded square shape, and the lower part of the tank is easy to carry when moving to a vehicle. The rail 54 is laid and four ears of sludge tanks 27-1, 27-2 and 27-3 are provided with hooks 55 so as to be able to engage with sludge moving cars.

Sludge storage tank (27-1) (27-2) (27-3) in the upper portion of the sludge inflow inlet 53, the flute (28) to detect the full water level of the introduced sludge and the water mixed with the sludge It consists of the drain port 29 which drains, and a screen.

4 is a device for collecting sludge in the turbidity water introduced from the dry pit drain 14 and allowing only purified water to flow into the secondary pond so that the sludge is continuously reused as dry pit cooling water. It is composed of a brush 36, which rotates 360 degrees, which is set up in a step-down step to settle, a motor and a reducer 37 that rotates it, and a rotating shaft 55 and a fixed shaft 39 bearing 41 supporting the brush. Wheels are attached to the bottom of the support 38 for smooth rotation of the 36.

The sedimentation tank 26 in which the sludge is settled is installed in the basement as a rectangular pond and has a lower limit and an upper limit for detecting the sludge deposited.

Two pumps (32-1) (32-2) connected to a pipe (46) pumping the sludge storage tanks (27-1), (27-2), and (27-3) in response to signals of the upper and lower limits. PUMP) front and rear valves 33-1, 33-2, 34-1 and 34-2, and check valves 42-1 and 42-2 to prevent backflow of pumped sludge and sludge storage It consists of the automatic valves 32-1, 32-2, 32-3 of tanks, and the control panel 45 which comprehensively controls the round pond pond 15, the sedimentation tank 26 sludge storage tank automatic valves, etc.

Referring to the operation of the present invention configured as described above are as follows.

As shown in FIGS. 3 to 6, when the sludge 19 is introduced into the ponds 15 and 16 from the dry pit drain 14, the screen SCREEN is prevented from infiltrating into the pond. 22) is installed and collected, and the weight measurement of WEIGHT inside the screen 22 is carried out by installing a LOAD SHELL 23 at the square corner of the screen. 5ton hoist (HOIST) (24) When the alarm from the detector operation panel 25, it will ring at the same time as the column mud gun cab for the operator to check, the drainage screen (SCREEN) 22 by the hoist 24 operation It is to be lifted up to 1 m high to the top of the drainage drain from the ground (14) ground to rotate in the direction of 90 degrees to the right.

Thereafter, the preliminary screen is installed in the drainage path 14, and the lumps collected on the existing screen 22 are transported inside the dry pit by the vehicle so as to distribute the dry pit aggregate processing.

As shown in FIG. 4, the dry pit primary pond 15 internal structure is designed to be elliptical to improve the design to collect the sludge 19 introduced into the turbid water of the coolant within the primary pond 15. The sludge collected in the sedimentation tank 26 is operated by pumps 32-1 and 32-2 by upper and lower limits, which are automatic control detectors, and the pumped sludge is a waste disposal storage tank (SLLIDGE RESERVOIR TANK) ( It is a sludge conveyance processing apparatus which is conveyed to 27-1) (27-2) and 27-3.

The settling tank 26 is installed at the bottom of the dry pit primary pond (POND) 15 so that sludge removal treatment is performed on the primary pond 15.

The water that is returned in the dry pit drain 14 is primarily the turbid water recovered from the screen 22 and the turbid water flowing into the dry pit ponds 15 and 16 (hereinafter referred to as 'slag'). ANAF and sprinkled ponds, which are mixed with water from the adversary, are recovered to dry pit ponds and circulated to cool the slag.The sludge is collected and treated in the dry pit primary ponds 15. The facility management improvement device prevents sludge from flowing into the secondary pond 16. The primary pond 15 is an elliptical dry pit pond. The sludge mixed with the cooling water is gradually added to the bottom of the settling tank 26. The turntable-type sludge removal blush 36 is rotated up, middle, and down by the motor 37 so that the rotation continues to sink.

Sludge is continuously deposited to the bottom of the primary POND 15 so as to accumulate in the settling tank 26. The upper limit limit 35-2 signals to one of the selected pump pumps 33-1 and 33-2 that pumps to the sludge transfer tanks 27-1, 27-2 and 27-3. It is activated.

When the lower limit limit of the sludge pumping pump is operated, the pump pumps 32-1 and 32-2 are automatically stopped while the check valves 42-1 and 42-2 are operated so that the sludge is not detained.

As shown in Figure 6 of the present invention, the sludge conveyed through the conveying pipe 46 is stored in the sludge storage tank (27-1) (27-2) (27-3), the flute 28 installed on the tank top ) When the sludge is filled by a certain amount, it is closed by the automatic valve (31-1) (31-2) (31-3) and the valve of the next tank is opened automatically. The release water is automatically discharged through the drain port 29.

The sludge storage tanks 27-1, 7-2, and 27-3 were able to transport the sludge to the sludge treatment plant when the sludge became full. All these actions were controlled automatically by the control panel 45.

As described above, according to the sludge collection device of the dry pit according to the present invention, due to the sludge stuck in the dry pit pond, the pit pond cooling water level is reduced, equipment support request, manpower support, equipment failure, weighted maintenance work, deterioration of the slag cooling effect The management problem has been to improve the efficiency of the dry pit pond and dry pit slag cooling treatment by improving the sludge recovery device structure by improving the efficiency of the dry pit pond and dry pit slag structure to achieve a dry pit slag cooling effect.

Claims (1)

A screen 22 which is inserted into the dry pit drain 14 connected to one side of the dry pit 8 and connected to the hoist 24 to collect the aggregates, Brush 36 is connected to the motor 37 is installed so that the sludge is settled in the dry pit pond connected to the dry pit pipe 14, A settling tank 26 installed at a bottom of the dry fit pond and connected to a transfer pipe 46 having a pump and a check valve at one side thereof; The sludge collecting device of the dry pit, characterized in that it comprises a storage tank 30 is connected to the transfer pipe 46 is installed so as to transfer from the upper side of the rail 54, the drain port 53 is formed.