WO2022266937A1

WO2022266937A1 - Pyromellitic dianhydride oxidation wastewater recycling device

Info

Publication number: WO2022266937A1
Application number: PCT/CN2021/102106
Authority: WO
Inventors: 谈勇
Original assignee: 鹏辰新材料科技股份有限公司
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-12-29
Also published as: DE212021000104U1

Abstract

A pyromellitic dianhydride oxidation wastewater recycling device, comprising a treatment box, a crystallization box arranged on one side of a partition plate, and a filter box arranged on the other side of the partition plate. A medicine delivery assembly is arranged on the upper side surface of the crystallization box; a hierarchical filtering assembly is arranged in the filter box; the medicine delivery assembly comprises a crankshaft; the crankshaft is rotatably provided in a support box; one end of the crankshaft is hingedly connected to a connecting rod; the connecting rod is hingedly connected to a lug plate; a guide column is slidably arranged in a guide sleeve; the guide sleeve is embedded on an inner surface of an adjustment groove; a pushrod is provided on the other end of the guide column; one end of the pushrod is connected to an adjustment block; the adjustment block is slidably arranged in the adjustment groove; a carrier plate is arranged at the bottom of the adjustment block; a vertical water pipe is arranged at the bottom of the carrier plate; a flow splitting pipe is arranged at the bottom of the vertical water pipe; the flow splitting pipe is provided with a spray nozzle; the vertical water pipe is connected to a medicine storage box by means of a water conveying hose. According to the utility model, a crystallizing agent can be uniformly conveyed into the wastewater, the crystallization efficiency of the wastewater is improved, multi-stage filtration can be performed on the wastewater, and the wastewater treatment effect is improved.

Description

A recycling device for pyromellitic dianhydride oxidation wastewater

technical field

The utility model relates to the technical field of pyromellitic dianhydride processing, in particular to a recycling device for pyromellitic dianhydride oxidation waste water.

Background technique

Pyromellitic dianhydride (dianhydride for short) is mainly used in the production of polyimide films, engineering plastics, coating additives, plastic additives and adhesives, etc., because polyimide has excellent mechanical, electrical, physical And chemical properties and are widely used in many fields such as electromechanical, aerospace, nuclear energy and electronics industries. The industrial production method of dianhydride is mainly based on the gas phase catalytic oxidation method, using durene as raw material, directly producing homoanhydride without dehydration, which has the advantages of simple process, relatively low production cost, easy automatic operation, suitable for industrial production, etc. Advantages, it is currently the mainstream process for producing dianhydride in the world. In the production process of pyromellitic dianhydride, a large amount of tail gas will be produced, which contains more reaction by-products. At present, it is mainly discharged to the atmosphere after water treatment, resulting in a large amount of waste water, which usually needs to be treated. .

Traditional wastewater treatment devices cannot evenly spray the crystallization agent into the wastewater, cannot quickly mix the crystallization agent with the wastewater, and are not convenient for the rapid crystallization of particulate matter in the wastewater. At the same time, they cannot perform multi-stage treatment of the wastewater, and the treatment effect is not good.

Utility model content

(1) Purpose of utility model

In order to solve the technical problems existing in the background technology, the utility model proposes a pyromellitic dianhydride oxidation wastewater recycling device, which can evenly transport the crystallization agent into the wastewater, improve the crystallization efficiency of the wastewater, and at the same time perform multi-stage processing on the wastewater. Filtration, improve the effect of wastewater treatment.

(2) Technical solution

The utility model provides a recycling device for pyromellitic dianhydride oxidized waste water, which comprises a treatment box, a partition arranged in the middle of the treatment box, a crystallization box arranged on one side of the partition, and a partition arranged on the other side of the partition. The filter box and the water inlet pipe arranged on one side of the treatment box, the drug delivery assembly is arranged on the upper side of the crystallization box, and the graded filter assembly is arranged in the filter box;

The drug infusion assembly includes a crankshaft, the crankshaft rotates and is set in the support box, and the support box is set on one side surface of the treatment box, one end of the crankshaft is hinged to a connecting rod, the connecting rod is hinged to the ear plate, the ear plate is set on the side surface of the guide column, and the guide column slides Set in the guide sleeve, the guide sleeve is inlaid on the surface of one side of the adjustment groove, the adjustment groove is set on the top side of the processing box, the other end of the guide column is provided with a push rod, one end of the push rod is connected with the adjustment block, and the adjustment block is slidingly set on the In the adjustment tank, a carrier plate is arranged at the bottom of the adjustment block, a vertical water pipe is arranged at the bottom of the carrier plate, a shunt pipe is arranged at the bottom of the vertical water pipe, and a nozzle is arranged on the shunt pipe, and the vertical water pipe is connected with the medicine storage box through a water delivery hose, and the medicine storage The tank is arranged on top of the processing tank.

Preferably, one end of the crankshaft is connected to the drive shaft of the first drive motor through a coupling, and the first drive motor is arranged on one side surface of the support box.

Preferably, one end of the connecting rod is connected to the crankshaft through a hinge shaft, and the other end of the connecting rod is hinged to the ear plate through a hinge shaft.

Preferably, there are multiple sets of spray heads, and multiple sets of spray heads are equidistantly arranged on the branch pipe.

Preferably, the graded filter assembly includes a support frame, and a first draw-in slot, a second draw-in slot and a third draw-in slot are arranged on one side of the support frame, the first draw-in slot is engaged with the first filter screen, and the second draw-in slot is provided with a Two filter screens, a third filter screen is arranged in the third card slot, and the support frame is connected with the processing box through a lifting structure.

Preferably, the opening diameter of the first filter screen is larger than that of the second filter screen, and the opening diameter of the second filter screen is larger than that of the third filter screen.

Preferably, the upgrade structure includes a longitudinal screw rod, the longitudinal screw rod is rotatably arranged in the first groove, one end of the longitudinal screw rod is connected with the drive shaft of the second drive motor located on the top side of the processing box, and a wire rod is arranged on the longitudinal screw rod. One end of the screw nut is connected to the surface of one side of the support frame, and the other side surface of the support frame is provided with a sliding sleeve. The two grooves are arranged symmetrically on both sides of the filter box.

Preferably, a return pipe is arranged on one side of the filter box, and a circulation pump is arranged on the return pipe.

Compared with the prior art, the above-mentioned technical solution of the utility model has the following beneficial technical effects:

1. The utility model can drive the shunt pipe to reciprocate laterally, and then can evenly transport the crystallization agent to the crystallization tank, which is convenient for the crystallization agent and wastewater to be fully mixed, and improves the crystallization efficiency of particulate matter in wastewater.

2. The utility model can carry out multi-stage filtration to waste water, improve the cleanliness of waste water filtration, and can be raised and lowered, which is convenient for cleaning the filter net, and is convenient to use.

Description of drawings

Fig. 1 is a structural schematic diagram of a recycling device for pyromellitic dianhydride oxidation wastewater proposed by the utility model.

Fig. 2 is a schematic cross-sectional structure schematic diagram of a front view of a pyromellitic dianhydride oxidation waste water recycling device proposed by the utility model.

Fig. 3 is a front view partial cross-sectional structure schematic diagram of a pyromellitic dianhydride oxidation wastewater recycling device proposed by the utility model.

Fig. 4 is a schematic cross-sectional structural schematic diagram of a front view of a graded filter assembly of a pyromellitic dianhydride oxidation wastewater recycling device proposed by the utility model.

Reference signs: 1. Drug infusion component; 2. Crystallization box; 3. Partition plate; 4. Filter box; 5. Return pipe; 6. Circulation pump; 7. Treatment box; Box; 10, water inlet pipe; 101, guide column; 102, crankshaft; 103, support box; 104, connecting rod; 105, ejector rod; 106, adjustment groove; 107, adjustment block; Shunt pipe; 110, nozzle; 111, carrier plate; 801, first groove; 802, screw nut; 803, longitudinal screw rod; 804, second drive motor; 805, first filter screen; 806, slide rod; 807 , sliding sleeve; 808, support frame; 809, the second groove; 810, the second filter screen; 811, the third filter screen.

detailed description

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and not intended to limit the scope of the present invention. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present invention.

As shown in Figure 1-4, a kind of pyromellitic dianhydride oxidized wastewater recycling device proposed by the utility model includes a treatment box 7, a partition 3 arranged in the middle of the treatment box 7, and a partition 3 arranged on one side The crystallization box 2, the filter box 4 arranged on the other side of the partition plate 3 and the water inlet pipe 10 arranged on one side of the treatment box 7, the drug delivery assembly 1 is arranged on the upper side of the crystallization box 2, and the graded filter assembly is arranged in the filter box 4 8;

The drug infusion assembly 1 includes a crankshaft 102, which is rotatably arranged in a support box 103, and the support box 103 is arranged on one side surface of the treatment box 7. One end of the crankshaft 102 is hinged to a connecting rod 104, and the connecting rod 104 is hinged to the ear plate, and the ear plate is arranged on One side surface of the guide column 101, the guide column 101 is slidingly arranged in the guide sleeve, the guide sleeve is embedded in the inner side surface of the adjustment groove 106, the adjustment groove 106 is opened on the top side of the processing box 7, and the other end of the guide column 101 is provided with the top Rod 105, one end of the push rod 105 is connected with the adjustment block 107, the adjustment block 107 is slidably arranged in the adjustment groove 106, the bottom of the adjustment block 107 is provided with a carrier plate 111, the bottom of the carrier plate 111 is provided with a vertical water pipe, and the bottom of the vertical water pipe is provided with a shunt pipe 109 , the nozzle 110 is set on the branch pipe 109, the vertical water pipe is connected with the medicine storage box 9 through the water delivery hose 108, the medicine storage box 9 is arranged on the top of the treatment box 7, and one end of the crankshaft 102 is connected to the first driving motor through a coupling. The drive shafts are connected, and the first drive motor is arranged on one side surface of the support box 103 .

In the utility model, the first drive motor drives the crankshaft 102 to rotate, the crankshaft 102 drives the connecting rod 104 to rotate and move, the connecting rod 104 drives the guide post 101 to reciprocate in the guide sleeve, the guide post 101 drives the ejector rod 105 to reciprocate, and the ejector rod 105 moves back and forth. The rod 105 drives the adjustment block 107 to reciprocate in the adjustment tank 106, the adjustment block 107 drives the carrier plate 111 to reciprocate, the carrier plate 111 drives the shunt pipe 109 to reciprocate, the shunt pipe 109 drives the nozzle 110 to reciprocate, and the water delivery hose 108 will The crystallization agent in the medicine box 9 is transported to the vertical water pipe, and the vertical water pipe transports the crystallization agent to the shunt pipe 109, and is sprayed through the nozzle 110, so that the crystallization agent is evenly transported to the crystallization tank 2, and the waste water is combined with the crystallization agent, and the Particles crystallize.

In an optional embodiment, one end of the connecting rod 104 is connected to the crankshaft 102 through a hinge shaft, and the other end of the connecting rod 104 is hinged to the ear plate through a hinge shaft.

It should be noted that the rotation and movement of the connecting rod 104 can be facilitated.

In an optional embodiment, multiple sets of spray heads 110 are provided, and multiple sets of spray heads 110 are equidistantly arranged on the branch pipe 109 .

It should be noted that the spraying range can be expanded and the spraying effect of the crystallization agent can be improved.

In an optional embodiment, the graded filter assembly 8 includes a support frame 808, a first draw-in slot, a second draw-in slot and a third draw-in slot are arranged on one side of the support frame 808, and the first draw-in slot is engaged with the first filter Net 805, the second filter screen 810 is set in the second draw-in slot, the third filter screen 811 is arranged in the third draw-in slot, the support frame 808 is connected with the processing box 7 through the lifting structure, and the mesh opening diameter size of the first filter screen 805 The diameter of the opening of the second filter 810 is larger than that of the opening of the third filter 810 .

It should be noted that the waste water in the crystallization box 2 is transported to the filter box 4 through pipelines, and the waste water passes through the first filter screen 805, the second filter screen 810 and the third filter screen 811 in sequence, the first filter screen 805, the second filter screen The net 810 and the third filter net 811 perform three-stage filtration on the waste water, and can filter impurities of different particle sizes.

In an optional embodiment, the upgrade structure includes a longitudinal screw rod 803, the longitudinal screw rod 803 is rotatably arranged in the first groove 801, and one end of the longitudinal screw rod 803 is connected to the second driving motor 804 on the top side of the processing box 7. The drive shaft is connected to each other, and a screw nut 802 is arranged on the longitudinal screw rod 803. One end of the screw nut 802 is connected with the surface of one side of the support frame 808, and a sliding sleeve 807 is set on the other side surface of the support frame 808, and the sliding sleeve 807 is slidably arranged on the slide bar. 806 , the sliding rod 806 is fixedly arranged in the second groove 809 , and the first groove 801 and the second groove 809 are symmetrically arranged on both sides of the filter box 4 .

It should be noted that when the impurities on the first filter screen 805, the second filter screen 810 and the third filter screen 811 need to be cleaned, the second drive motor 804 drives the longitudinal screw rod 803 to rotate, and the screw nut 802 drives the support The frame 808 moves, and the support frame 808 drives the sliding sleeve 807 to move on the slide bar 806, and the support frame 808 simultaneously drives the first filter screen 805, the second filter screen 810 and the third filter screen 811 to move, and the first filter screen 805, The second filter screen 810 and the third filter screen 811 are moved out of the filter box 4 , and the operator cleans the first filter screen 805 , the second filter screen 810 and the third filter screen 811 .

In an optional embodiment, a return pipe 5 is arranged on one side of the filter box 4 , and a circulation pump 6 is arranged on the return pipe 5 .

It should be noted that the waste water treated in the filter box 4 can be recycled and reused.

It should be understood that the above specific embodiments of the present utility model are only used to illustrate or explain the principle of the present utility model, but not to limit the present utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model shall be included in the protection scope of the present utility model. Furthermore, the appended claims are intended to cover all changes and modifications that come within the scope and boundaries of the appended claims, or equivalents of such scope and boundaries.

Claims

A pyromellitic dianhydride oxidation waste water recycling device, characterized in that it comprises a treatment box (7), a partition (3) arranged in the middle of the treatment box (7), a partition arranged on one side of the partition (3) The crystallization box (2), the filter box (4) that is arranged on the other side of the partition (3) and the water inlet pipe (10) that is arranged on one side of the treatment box (7) are arranged on the upper side of the crystallization box (2). Component (1), a graded filter component (8) is arranged in the filter box (4);

The drug delivery assembly (1) includes a crankshaft (102), the crankshaft (102) is rotatably installed in the support box (103), the support box (103) is arranged on the side surface of the treatment box (7), and one end of the crankshaft (102) is hinged to the connecting rod (104), the connecting rod (104) is hinged with the ear plate, the ear plate is arranged on the surface of one side of the guide column (101), the guide column (101) is slidably arranged in the guide sleeve, and the guide sleeve is embedded in the adjustment groove (106) One side surface, adjusting groove (106) is offered on one side of the inner top of processing box (7), and the other end of guide post (101) is provided with ejector pin (105), and one end of ejector pin (105) is connected with regulating block (107), adjusts The block (107) is slidingly arranged in the adjustment groove (106), the bottom of the adjustment block (107) is provided with a carrier plate (111), the bottom of the carrier plate (111) is provided with a vertical water pipe, and the bottom of the vertical water pipe is provided with a shunt pipe (109). Nozzle (110) is set on the pipe (109), and the vertical water pipe is connected with the medicine storage box (9) through the water delivery hose (108), and the medicine storage box (9) is arranged on the treatment box (7) top.
A kind of pyromellitic dianhydride oxidation wastewater recycling device according to claim 1, characterized in that one end of the crankshaft (102) is connected to the drive shaft of the first drive motor through a coupling, and the first drive motor is set On the side surface of the support box (103).
A device for recycling pyromellitic dianhydride oxidation wastewater according to claim 2, wherein one end of the connecting rod (104) is connected to the crankshaft (102) through a hinge shaft, and the other end of the connecting rod (104) is connected through The hinge shaft is hinged with the ear plate.
A device for recycling pyromellitic dianhydride oxidized wastewater according to claim 3, characterized in that the nozzles (110) are provided with multiple groups, and the multiple groups of nozzles (110) are equidistantly arranged on the shunt pipe (109) .
A device for recycling pyromellitic dianhydride oxidized wastewater according to claim 4, characterized in that the graded filter assembly (8) includes a support frame (808), and a first card is arranged on one side of the support frame (808) slot, the second draw-in slot and the third draw-in slot, the first filter screen (805) is clamped in the first draw-in slot, the second filter screen (810) is set in the second draw-in slot, and the third filter screen (810) is set in the third draw-in slot The net (811) and the support frame (808) are connected with the processing box (7) through a lifting structure.
A kind of pyromellitic dianhydride oxidation wastewater recycling device according to claim 5, characterized in that the diameter of the opening of the first filter screen (805) is greater than the diameter of the opening of the second filter screen (810) , the diameter of the opening of the second filter screen (810) is greater than the diameter of the opening of the third filter screen (811).
A device for recycling pyromellitic dianhydride oxidation wastewater according to claim 6, characterized in that the upgrading structure includes a longitudinal screw (803), and the longitudinal screw (803) is rotatably arranged in the first groove (801 ), one end of the longitudinal screw rod (803) is connected to the drive shaft of the second drive motor (804) positioned at the top side of the processing box (7), and the screw nut (802) is arranged on the longitudinal screw rod (803). (802) one end is connected with support frame (808) one side surface, and support frame (808) other side surface is provided with sliding sleeve (807), and sliding sleeve (807) is slidably arranged on the slide bar (806), slide bar ( 806) is fixedly arranged in the second groove (809), and the first groove (801) and the second groove (809) are symmetrically arranged on both sides of the filter box (4).
A kind of pyromellitic dianhydride oxidation wastewater recycling device according to claim 7 is characterized in that a return pipe (5) is arranged on the surface of one side of the filter box (4), and a circulation pump (5) is arranged on the return pipe (5) 6).