RU79807U1 - SEPARATOR FOR SEPARATION OF MULTI-PHASE LIQUID HETEROGENEOUS MEDIA, SUSPENSIONS AND EMULSIONS, "VORTEX" - Google Patents

Abstract

The proposed separator relates to technological equipment intended for the separation of multiphase liquid heterogeneous media, suspensions and emulsions in various industries into their constituent fractions in the field of centrifugal (gravitational) forces using a separating micro-vortex mechanism, microfiltration, ultrafiltration, nanofiltration. The proposed separator can be used in food, microbiological, petrochemical, pharmaceutical, medical, forestry, engineering, electricity, metallurgy, light and other industries, as well as in construction, agriculture and utilities. The proposed separator for the separation of liquid heterogeneous suspensions and emulsions. It includes a housing with a lid, a drum placed in it, consisting of a shell and a base, in the lower part of which a partition is fixed above its bottom, forming a fraction removal zone, in which a pressure disk for outputting a heavy fraction and an axial channel made in the floor are placed to the shaft, for outputting the light fraction, a means for filtering the medium entering the separation in the form of an annular chamber located in the housing, with a filtrate outlet pipe. A filter in the form of a disk with an axial channel for filing is installed under the partition wall to filter waste and heavy filtering parts light fraction with finely dispersed phase. A drum holder with a packet of plates is installed in the drum. The separator is equipped with an additional annular chamber with a filtrate outlet pipe for enhanced filtration. The inner wall of each chamber is a self-regenerating removable membrane filter element and forms a flow channel with a drum shell for filtering and supplying the medium to the plate package from the side of the slurry space, the shell is made with a reflector lid, in which there is a device for preliminary filtration in the form of eight holes. Adjustable chokes are located in the inter-plate gaps to shift the distribution profile of the fluid flow rate, increase and control it over the flow cross section and excitation in a thin near-wall layer of hydraulic lifting force. The design of the separator provides its high performance and separation ability. 2 s.p. f-ly, 2 ill. The proposed separator has four essential features: 1. - There are two chambers, one of them is introduced additionally for enhanced filtration, improved filtration quality, and to increase the productivity of the apparatus due to the passage of a liquid medium through a small area of SSMP.

2. - In both chambers, in the branch pipe, on the end surface, self-regenerating removable membrane filter elements are installed - SSMFs of various porosities, which can be replaced by other SSMFs of their own kind. The micro-vortex separation mechanism, which provides self-regeneration (self-cleaning) of the SSMF, allows the process of filtering liquid multicomponent media without accumulating sediment on the membrane surface, it (sediment) is continuously removed from the separator. 3. - There are eight holes in the reflector lid in the casing - a pre-filtering device that allows the liquid medium to immediately enter the adjustable chokes, into the inter-tray space, and without further passage. 4. - In the inter-plate gaps of the plate package, there are adjustable chokes for adjusting and changing the flow of the liquid medium, as well as for faster passage of the medium along the upper part of the separator. Through them, the medium enters immediately, without additional passage through the channels, into the inter-tray space, into the plate package, where the media are separated. When implementing the proposed separator, the use of modular plants will increase its productivity and purity of filtration many times more than the separators proposed earlier. Using the proposed separator: 1. Increases the performance of separation and filtration due to the fact that the throughput of the newly introduced SSMF increases and becomes equal to their throughput. 2. There is no constant washing of the SSMF, since their self-regeneration (purification) occurs. One filter can be used throughout the life of the separator (more than ten years). SSMPs can be replaced by others depending on the goals. 3. There is a continuous loading and unloading of the working environment. 4. The sludge discharge process becomes automatic. 5. The specific metal consumption is reduced to 5.5 kg / m. cubumag. 6. The specific energy consumption is reduced to 0.35 kW / m3. 7-Separation of a multicomponent liquid medium into several components from five or more at a time. And when using a separator in modular installations (from two or more) ten times more. 8-Combination of processes of filtration and separation, microfiltration, ultrafiltration, nanofiltration.

ABBREVIATIONS USED: SSMF SELF-GENERATING REMOVABLE MEMBRANE FILTER ELEMENTS BIBLIOGRAPHY: List of documents cited in the search report. Documents used from Rospatent from the site http://www.rupto.ru http://www.fips.ru: 1. SU 1346256 A, 10.23.87. 2. 2. SU 485774 A, 09.30.75. 3. DE 3127085 A. 01.27.83. 4. GB 2076316 A, 02.12.81 3. RU 1121249 6 B04B 11/02

Description

The proposed separator relates to technological equipment designed to separate multiphase liquid inhomogeneous media of suspensions and emulsions into their constituent fractions; can be used in various industries (medical, microbiological, food, oil refining and other industries. The following separators are known for separating heterogeneous liquid media (SU 485774? Cl. B04 11/02, 1975) and (SU 1345256, cl. B04B 01 (08, 1987). These separators do not separate the liquid medium into a large number of fractions and do not provide for their filtration, operate with high angular velocities, high specific gravity and energy consumption, they must be stopped for discharge from the sludge.

The closest analogue to the proposed separator is a separator for separating liquid inhomogeneous media (RU (11) 2124949 6 B04B 1/08, B04B 11/02), which became the prototype for the proposed separator. It includes: a housing with a lid, a drum placed in it on a hollow shaft, consisting of a shell with a lid and a base, in the lower part of which a partition is located above its bottom, forming a zone for discharging the separated fractions, a pressure disk placed on it for outputting the heavy fraction and a channel in the hollow shaft for removal of the light fraction, a plate holder with a package of plates, means for supplying a shared liquid medium mounted on the housing cover, and a drum drive provided with a means for filtering to separate liquid neo a homogeneous medium in the form of an annular chamber located in the housing with a filtrate outlet pipe, the inner wall of which is a filter element and forms a flowing annular channel with a drum shell for filtering and supplying a liquid medium to the plate package from the side of the slurry space. Under the partition of the base there is a filter in the form of a hollow disk with channels for draining the filtrate, control filtration of the finely divided solid phase of the heavy and part of the light fraction. Inductors are located in the inter-plate gaps of the plate package. The specified separator has some disadvantages:

1. an increase in its productivity and separation ability is still achieved due to the high energy and metal consumption of the separator, its cost;

2. the number of shared fractions is not more than four;

3. the membranes are not removable, which does not allow their use for various types of filtration;

4. throttles are installed unregulated, which makes it impossible to regulate and change the flow of the medium when necessary;

5. the liquid medium passes a large portion of the path without receiving pre-filtration;

6. When using one camera for the filter, the output of the filtered mass is not clean enough.

T.O., the task is to solve all of the above problems, improve the separator, increase productivity, increase the number of fractions (from 5 or more), reduce the energy and metal consumption, reduce its costs. The proposed separator solves all these problems by introducing an additional chamber, SSMF (self-regenerating removable membrane filter element), a reflector cover with eight holes, adjustable chokes. The technical result of the separator is to increase productivity, throughput, dividing the ability of the media at a high level of microfiltration, ultrafiltration, nanofiltration; an increase in the number of fractions (from five or more) obtained by combining centrifugation and filtration processes, lowering specific metal consumption, energy intensity, and, consequently, the cost of the apparatus.

To achieve this result, a separator is proposed for the separation of heterogeneous liquid media, suspensions and emulsions. It includes a housing with a lid, a drum placed in it, consisting of a shell and a base, in the lower part of which a partition is fixed above its bottom, forming a fraction removal zone, in which a pressure disk for outputting a heavy fraction and an axial channel made in the floor are placed the shaft, for outputting the light fraction, means for filtering the medium entering the separation in the form of an annular chamber located in the housing, with a filtrate outlet pipe. A filter in the form of a disk with an axial channel for removing the filtrate is installed under the partition of the base for filtering the heavy and filtering part of the light fraction with a finely dispersed phase and a means for supplying a shared liquid medium is arranged. A drum holder with a packet of plates is installed in the drum. The proposed separator is equipped with an additional annular chamber with a bypass

filtrate nozzle for enhanced filtration. The inner wall of each chamber is an SSMF and forms a flow channel with a drum shell for filtering and supplying the medium to the plate package from the side of the slurry space, the shell is made with a reflector cover, in which there is a device for preliminary filtration in the form of eight holes. Adjustable chokes are located in the inter-plate gaps to shift the distribution profile of the fluid flow rate, increase and control it over the flow cross section and excitation in a thin near-wall layer of hydraulic lifting force. At the same time, the inner wall is the end and self-regenerating removable membrane filter elements made of different porosity.

Figure 1 schematically shows a longitudinal section of a separator; figure 2 - plate with a throttle. The proposed separator for separating inhomogeneous liquid media, suspensions and emulsions includes a cylindrical body 1 with a cover 2, a drum 3 placed in it, consisting of a shell 4 with a reflector cover 5, in which there are eight holes for passing the fraction directly through the adjustable chokes 26 into the bag plates 13, which changes the direction of the fluid flow, and the base 6, in the lower part of which above its bottom 7 is a partition 8, forming a zone of removal of fractions, a pressure disk 9 placed therein for outputting a heavy fraction and a channel 10 hollow shaft 11 for withdrawing light fractions, a tray holder 12 with a package of conical plates 13, means for supplying a shared liquid medium containing a pressure chamber 14 with a screw cap, with an inlet pipe 15, which (chamber 14) has self-regenerating removable membrane filter elements SSMF19-a of various porosity and outlet pipe 18-a and untwisting ribs 16, mounted on the cover 5 of the drum, and a means for filtering supplied to the separation of the medium in the form located in the housing of the annular chamber 17 with a tap BKM 18-6 of the filtrate, the inner wall of which is a self-regenerating removable membrane filter element SSMF19-b and forms a flow annular channel 20 with the drum casing 4 for filtering and supplying the medium to the plate package from the side of the slurry space 21. A filter is installed under the partition 8 of the drum base 6 22 with channels 23 of the filtrate outlet, used to filter the finely divided solid phase of the heavy and part of the light fraction and made in the form of a disk having a filter end face 24 and a side 25 surface. The partition 8 is provided with openings 29 for the flow of light fraction into the axial channel 10, with openings 30 for supplying the finely dispersed phase to the surface 22 s

SSMP 24, and openings 31 for passage of the heavy fraction concentrate from the slurry space 21 to the pressure disk 9.

The drum shell 4 and the self-regenerating removable membrane filter elements SSMF19a and SSMF19-b of the annular chamber 17 are cylindrical. To increase the filtering surface, they can be made conical or spherical.

The conical plates 13 installed in the drum of the proposed separator are equipped with adjustable chokes 26 (figure 2-plate with a choke), made in the form of a flat washer, rigidly connected to the upper part of the plate and forming horizontal channels 36 and vertical 28 with it for passing the light fraction to the axis rotation and channels 27 for the passage of the finely divided phase of the heavy fraction.

In the lower part of the housing 1 there is a nozzle 32 for discharging the filtrate three from SSMF 22, a nozzle 33 for discharging the heavy fraction from the axial channel 10. A nozzle 34 for exiting the light fraction. The drum drive includes a hollow shaft 11 mounted in the bearing bearings 35, a belt drive and an electric motor (not shown in the drawing).

The proposed separator operates as follows.

A heterogeneous liquid medium, for example, milk, enters the pressure chamber 14 into the pressure chamber 14 with a screw cap, and the spinning ribs 16 are directed to the SSMF 19-a. Part of the liquid medium passes through the SSMF 19-a, and through the outlet pipe 18-a it is discharged from the separator (first filtrate). The technological effect of the separation of the liquid medium is achieved by combining the processes of separation and filtration in the space between the coaxially located surfaces 4 and SSMF 19-a and SSMF19-b, one of which (self-generating removable membrane-filtering 19-a, 19-b) is fixed motionless, and the other 4 rotates, exciting rotation vortices in a thin layer, which continuously release the filtration surface from the particles of the dispersed phase trapped by it. The other part of the liquid medium that did not pass through the filter, together with the precipitate of particles of the dispersed phase washed away by the vortex of rotation from the surface of the SSMF 19-a, is sent to the reflector-5 cover through its openings to the adjustable chokes-26 and to the plate-plate-13. In the package of plates-13, due to centrifugal force, the liquid is divided into fractions of light fat and heavy finely divided particles. Further, this flow is discharged through the gaps between the plate holder and the shell and enters the SSMF 19-b, then they are discharged through the branch pipe 18-b (two filtrate).

In the plate package 13, the heavy fraction is discarded by the centrifugal force to the periphery of the slurry space of the base of the drum and through channels 31 enters the pressure disk 9, with which the concentrate is discharged from the drum through the nozzle 33. Part of the liquid medium from the inter-plate flow containing the finely divided phase of the heavy fraction and the light fraction containing the fatty phase enters the package of plates 13 having adjustable chokes 26, by means of which a velocity circulation field and hydra are excited in a thin parietal layer avic lift. In each inter-plate space, under the action of a centrifugal separating effect and hydraulic lifting force, the liquid medium is stratified into a stream of light (fat) and heavy (finely dispersed) fractions. The light fraction (fat) from the inter-tray space through the channels 28 through the holes 29 enters the axial channel 10 and through the pipe 34 is removed from the drum. The finely dispersed phase of the heavy fraction from the inter-tray space through the channels 27 through the hole 30 in the partition 8 enters the end surface 24 with the SSMF 22. The filtrate from the hollow space in the SSMF 22 through the channels 23 through the pipe 32 is removed from the separator drum. The filtered precipitate of the finely divided solid phase of the heavy fraction under the action of a vortex lifting force arising in the space between the fixed surface 24 of the SSMF 22 and the surface of the rotating partition 8 is continuously "removed" from the end surface 24 of the SSMF 22, rises to the rotating partition 8, from the surface of which the action of centrifugal force is thrown to the periphery of the base 6 of the drum, from where the pressure disk 9 is sucked out and through the pipe 33 is removed from the separator. Using the proposed separator allows you to: increase productivity, throughput, increase the separation ability of media, increase the number of fractions from five or more, reduce the dimensions of the separator, metal consumption, energy consumption for the process and cost. The proposed separator is used in the fuel and energy industry for the regeneration of used transformer oil. Disposal of used transformer oil is a major concern for the energy industry. Using the microfiltration process at the SSMF, the used transformer oil was purified from suspended solids and water. Purity indicators of transformer oil are brought to the required standards. The use of a separator makes it possible to increase the purity of the regenerated transformer oil from the 14th to the 5th grade, reduce the moisture content from 3000 g / t to 5 g / t and significantly increase the electrical resistance of the oil from 0 to 45.5 kV / cm.

Claims (3)

1. A separator for separating liquid heterogeneous suspensions and emulsions, including a housing with a lid, a drum placed in it, consisting of a shell and a base, in the lower part of which a partition is fixed above its bottom, forming a fraction removal zone in which a pressure disk for the output of the heavy fraction and the axial channel made in the hollow shaft, for outputting the light fraction, means for filtering the medium supplied to the separation in the form of an annular chamber located in the housing, with a filtrate outlet pipe, while under A filter in the form of a disk with an axial channel for removing the filtrate for filtering the heavy and filtering part of the light fraction with a finely divided solid phase is installed in the drum; in this case, a drum holder with a packet of plates is installed in the drum and means for supplying a shared liquid medium is provided, characterized in that it is equipped with an additional an annular chamber with a filtrate outlet for enhanced filtration, the inner wall of each chamber is a self-regenerating removable membrane filter element and it runs with a drum shell a flow channel for filtering and supplying the medium to the plate package from the side of the slurry space, the shell is made with a reflector cover, in which a pre-filtering device is made in the form of eight holes, and adjustable chokes are located in the inter-plate gaps of the drum plate package. 2. The separator according to claim 1, characterized in that the inner wall is an end wall. 3. The separator according to claim 1, characterized in that the self-regenerating removable membrane filter elements are made of different porosity.