CN218485644U

CN218485644U - Separating device for separating suspended matters in DMAC solution

Info

Publication number: CN218485644U
Application number: CN202222325178.6U
Authority: CN
Inventors: 李雯; 韩永良; 王莹; 白静娜; 安博
Original assignee: China Clear Tianjin Environment Protection Tech Co ltd
Current assignee: China Clear Tianjin Environment Protection Tech Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-02-17
Anticipated expiration: 2032-09-02

Abstract

The utility model belongs to the technical field of separator, especially, a separator for separating suspended solid in DMAC solution, including first filter and second filter, the top of first filter and the top of second filter all fix the intercommunication have first blow-off pipe, two the top of first blow-off pipe all fixes the intercommunication and has the connection whole pipe, first inlet pipe has all been seted up on top one side circular arc surface of first filter and the top circular arc surface of second filter. This a separator for separating suspended solid in DMAC solution filters the DMAC solvent through adopting the ceramic membrane filter core, with the separation of suspended solid impurity in the DMAC solvent. Due to the tubular ceramic membrane and the internal pressure type filtering mode, DMAC (dimethylacetamide) liquid enters the circular arc surface of the ceramic membrane from each channel under the driving of feeding pressure and permeates into the inner cavity to form dialysate, so that the separation of fiber impurities in the DMAC solvent is completed. The filtering precision of the ceramic membrane is ensured through the processes of concentrated solution discharge and cleaning at regular intervals.

Description

Separating device for separating suspended matters in DMAC solution

Technical Field

The utility model relates to a separator technical field especially relates to a separator for separating suspended solid in DMAC solution.

Background

DMAC is an aprotic highly polar solvent, has strong dissolving power and wide range of soluble substances, can be freely mixed and dissolved with water, aromatic compounds, esters, ketones, alcohols, ethers, benzene, trichloromethane and the like, and can activate compound molecules, so that the DMAC has strong corrosivity.

When the DMAC solution contains impurities with tiny particle sizes or substances with recoverable values need to be purified/recovered, the material requirements of purification equipment are high, common PVC and PVDF materials cannot resist the corrosivity, and when the PTFE polytetrafluoroethylene material is used as a filtering material, the filtering pore size cannot be too small. In practical application, when the particle size of suspended substances in the DMAC solution needs to be separated and is less than 2 microns, the above materials cannot be met. A separation device for separating the suspended matter in the DMAC solution is therefore required.

SUMMERY OF THE UTILITY MODEL

Based on current technical problem, the utility model provides a separator for separating suspended solid in DMAC solution.

The utility model provides a separator for separating suspended solid in DMAC solution, including first filter and second filter, the top of first filter and the top of second filter are all fixed the intercommunication and have first blow-off pipe, two the top of first blow-off pipe is all fixed the intercommunication and connect whole pipe, first inlet pipe has all been seted up to top one side circular arc surface of first filter and the top circular arc surface of second filter, two one end of first inlet pipe is all fixed the intercommunication and has first three-way pipe, the one end of first three-way pipe is fixed the intercommunication with the discharge end of DMAC dialysate pool;

the inside of first filter and the inside of second filter all are provided with separating mechanism, separating mechanism is including the filter core, two the filter core sets up respectively in the inside of first filter and second filter.

Preferably, the bottom end of the first filter and the bottom end of the second filter are both connected with mounting bases through screw threads, a second feeding pipe is fixedly mounted on the inner wall of the center of each mounting base, the bottom ends of the second feeding pipes are fixedly communicated with a second three-way pipe, and the second three-way pipe is fixedly communicated with the discharge end of the DMAC stock solution tank.

Preferably, installation clamping groove has been seted up at the top of installation base, installation clamping groove's inner wall and the bottom joint of filter core, the top of filter core is provided with the installation backing plate, the bottom of installation backing plate all installs through screw threaded connection with installation clamping groove's interior diapire.

Preferably, two the circular arc surface of one side of installation base and the circular arc surface of bottom one side of first filter, the circular arc surface of bottom one side of second filter all fixed intercommunication have the second blow off pipe, two the one end of second blow off pipe and the one end of connecting whole pipe all are located the inside of retrieving the processing pond.

Preferably, the material of the filter element is ceramic membrane, and the shape of the filter element is tubular.

Preferably, the surfaces of the two first sewage draining pipes, the surface of the connecting whole pipe, the surfaces of the two first feeding pipes, the surface of the first three-way pipe, the surfaces of the two second feeding pipes, the surface of the second three-way pipe and the surfaces of the two second sewage draining pipes are provided with manual ball valves.

Preferably, the surface of the connecting whole pipe, the surface of the first three-way pipe and the surface of the second three-way pipe are provided with pressure gauges.

The utility model provides a beneficial effect does:

and filtering the DMAC solvent by adopting a ceramic membrane filter core, and separating suspended substance impurities in the DMAC solvent. Due to the tubular ceramic membrane and the internal pressure type filtering mode, DMAC (dimethylacetamide) liquid enters the circular arc surface of the ceramic membrane from each channel under the driving of feeding pressure and permeates into the inner cavity to form dialysate, so that the separation of fiber impurities in the DMAC solvent is completed. The filtering precision of the ceramic membrane is ensured through the processes of regular concentrated solution discharge and cleaning.

Drawings

FIG. 1 is a schematic diagram of a separation apparatus for separating a suspension of DMAC solution;

FIG. 2 is a perspective view of a first filter arrangement of a separation device for separating a suspension of DMAC solution;

figure 3 is a cross-sectional view of a filter element arrangement of a separation device for separating a suspension in a DMAC solution.

In the figure: 1. a first filter; 2. a second filter; 3. a first drain pipe; 4. connecting the whole pipe; 5. a first feed tube; 6. a first three-way pipe; 7. a filter element; 8. installing a base; 9. a second feed tube; 10. installing a clamping groove; 11. a second sewage draining pipe; 12. a manual ball valve; 13. a pressure gauge; 14. installing a base plate; 15. a second three-way pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a separator for separating suspended solid in DMAC solution, including first filter 1 and second filter 2, the top of first filter 1 and the top of second filter 2 are all fixed the intercommunication and have first blow-off pipe 3, the top of two first blow-off pipes 3 is all fixed the intercommunication and has connect whole pipe 4, first inlet pipe 5 has all been seted up on top one side circular arc surface of first filter 1 and the top circular arc surface of second filter 2, the one end of two first inlet pipes 5 is all fixed the intercommunication and has first three-way pipe 6, the one end of first three-way pipe 6 and the discharge end of DMAC dislysate pond are fixed the intercommunication.

The bottom of first filter 1 and the bottom of second filter 2 all have installation base 8 through screw threaded connection, and the equal fixed mounting of the central inner wall of two installation bases 8 has second inlet pipe 9, and the bottom of two second inlet pipes all is fixed the intercommunication has second three-way pipe 15, the second three-way pipe 15 with the discharge end fixed intercommunication in DMAC stoste pond.

And the arc surface of one side of the two mounting bases 8, the arc surface of one side of the bottom end of the first filter 1 and the arc surface of one side of the bottom end of the second filter 2 are fixedly communicated with second sewage discharge pipes 11, and one ends of the two second sewage discharge pipes 11 and one end of the whole connecting pipe 4 are positioned in the recycling and treating pond.

The separation mechanisms are arranged in the first filter 1 and the second filter 2 respectively, each separation mechanism comprises a filter element 7, and the two filter elements 7 are arranged in the first filter 1 and the second filter 2 respectively; installation clamping groove 10 has been seted up at the top of installation base 8, and installation clamping groove 10's inner wall and filter core 7's bottom joint, the top of filter core 7 are provided with installation backing plate 14, installation backing plate 14's bottom all installs through screw threaded connection with installation clamping groove 10's interior diapire, and then has reached the effect that can dismantle and wash the change in the long-term use of filter core 7, easy operation, and the cost is dismantled in the maintenance, utilizes installation backing plate 14 to extrude the top of filter core go on with installation clamping groove's inner wall installation.

The material of the filter element 7 is ceramic membrane, the shape of the filter element 7 is tubular, the main supporting layer of the ceramic membrane mainly comprises inorganic compounds such as silicon, aluminum and the like, the ceramic membrane does not have the condition of chemical reaction with DMAC solution, the aperture range of the ceramic membrane is wide, the ceramic membrane comprises an ultrafiltration level and a nanofiltration level, and the ceramic membrane is suitable for the separation items of special solutions such as DMAC solvent and the like and special substances; manual ball valves 12 are arranged on the surfaces of the two first sewage discharge pipes 3, the surface of the connecting whole pipe 4, the surfaces of the two first feed pipes 5, the surface of the first three-way pipe 6, the surfaces of the two second feed pipes 9, the surface of the second three-way pipe 15 and the surfaces of the two second sewage discharge pipes 11; and the pressure gauge 13 is arranged on the surface of the connecting whole pipe 4, the surface of the first three-way pipe 6 and the surface of the second three-way pipe 15.

The device adopts an operation mode mainly based on full-flow filtration, DMAC (dimethylacetamide) stock solution enters the inside of the first filter 1 through the second three-way pipe 15 through the second feeding pipe 9, and permeates the surface of the ceramic membrane of the filter element 7 under the driving of feeding pressure, micropores on the surface of the ceramic membrane intercept suspended matter impurities in a solvent at the feeding side, and dialysate flows out through a dialysate outlet of the device; the interception amount of suspended matter impurities is improved, and because the minimum particle size of the suspended matter impurities is known to be about 1 mu m at present, the filter element 7 adopts a ceramic membrane element with the filtering precision of 50nm, so that the suspended matter impurities in the DMAC solvent are all intercepted, and the system is prevented from irreversible damage of the membrane element caused by the blockage of membrane holes due to the minimum particle size of the impurities; and the backwashing setting is optimized, and due to the limitation of the DMAC solvent characteristic, the filter is periodically backwashed and cleaned in a mode that the double filters are used for backwashing each other, namely, the dialysate of the first filter 1 enters the filter from the dialysate port of the second filter 2, so that the purpose of reverse cleaning is achieved, and the difficult problem of material selection of the backwashing equipment which is independently arranged can be solved.

And filtering the DMAC solvent by adopting a ceramic membrane filter element 7, and separating suspended substance impurities in the DMAC solvent. Due to the tubular ceramic membrane and the internal pressure type filtering mode, DMAC (dimethylacetamide) liquid enters the circular arc surface of the ceramic membrane from each channel under the driving of feeding pressure and permeates into the inner cavity to form dialysate, so that the separation of fiber impurities in the DMAC solvent is completed. The filtering precision of the ceramic membrane is ensured through the processes of concentrated solution discharge and cleaning at regular intervals.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Separation device for separating a suspension in a DMAC solution, comprising a first filter (1) and a second filter (2), characterized in that: the top of the first filter (1) and the top of the second filter (2) are fixedly communicated with first drain pipes (3), the top ends of the two first drain pipes (3) are fixedly communicated with a connecting whole pipe (4), the circular arc surface of one side of the top end of the first filter (1) and the circular arc surface of the top end of the second filter (2) are provided with first feed pipes (5), one end of each of the two first feed pipes (5) is fixedly communicated with a first three-way pipe (6), and one end of each first three-way pipe (6) is fixedly communicated with the discharge end of a DMAC dialysate pool;

the inside of first filter (1) and the inside of second filter (2) all are provided with separating mechanism, separating mechanism is including filter core (7), two filter core (7) set up respectively in the inside of first filter (1) and second filter (2).

2. Separation device for the separation of a suspension in a DMAC solution according to claim 1, characterized in that: the bottom of first filter (1) and the bottom of second filter (2) all have installation base (8), two through screw threaded connection the equal fixed mounting of the central inner wall of installation base (8) has second inlet pipe (9), two the bottom of second inlet pipe all is fixed the intercommunication has second three-way pipe (15), the second three-way pipe (15) with the fixed intercommunication of DMAC stoste pond's discharge end.

3. Separation device for the separation of a suspension in a DMAC solution according to claim 2, characterized in that: installation clamping groove (10) have been seted up at the top of installation base (8), the inner wall of installation clamping groove (10) and the bottom joint of filter core (7), the top of filter core (7) is provided with installation backing plate (14), the bottom of installation backing plate (14) all installs through screw threaded connection with the interior diapire of installation clamping groove (10).

4. Separation device for the separation of a suspension in a DMAC solution according to claim 2, characterized in that: two the circular arc surface of one side of installation base (8) and the circular arc surface of bottom one side of first filter (1), the circular arc surface of bottom one side of second filter (2) all fixed intercommunication have second blow off pipe (11), two the one end of second blow off pipe (11) and the one end of connecting whole pipe (4) all are located the inside of retrieving the processing pond.

5. Separation device for the separation of a suspension in a DMAC solution according to claim 1, characterized in that: the material of the filter element (7) is ceramic membrane, and the shape of the filter element (7) is tubular.

6. Separation device for the separation of a suspension in a DMAC solution according to claim 4, characterized in that: the surfaces of the two first sewage discharge pipes (3), the surface of the connecting whole pipe (4), the surfaces of the two first feeding pipes (5), the surface of the first three-way pipe (6), the surfaces of the two second feeding pipes (9), the surface of the second three-way pipe (15) and the surfaces of the two second sewage discharge pipes (11) are provided with manual ball valves (12).

7. Separation device for the separation of a suspension in a DMAC solution according to claim 1, characterized in that: and pressure gauges (13) are arranged on the surfaces of the connecting whole pipe (4), the first three-way pipe (6) and the second three-way pipe (15).