DE212021000104U1 - An apparatus for recycling pyromellitic dianhydride oxidation wastewater - Google Patents

Abstract

A device for recycling pyromellitic dianhydride oxidation waste water, characterized in that it has a treatment box (7), a separating plate (3) arranged in the middle of the treatment box (7), a crystallization box (2) arranged on one side of the separating plate (3), a filter box (4) located on the other side of the partition plate (3) and a water inlet tube (10) located on one side of the treatment box (7), a drug delivery assembly (1) being located on top of the crystallization box (2), wherein a sorting filter arrangement is arranged in the filter box (4), the drug delivery arrangement (1) comprising a crankshaft (102), the crankshaft (102) being rotatably arranged in the support box (103), with a support box (103) on the surface of one side of the Treatment box (7) is arranged, wherein one end of the crankshaft (102) is articulated with a connecting rod (104) , wherein the connecting rod (104) is articulated to the ear plate, the ear plate being arranged on the surface of one side of the guide column (101), the guide column (101) being arranged displaceably in the guide sleeve, with a guide sleeve on an inner side surface of the adjustment groove (106) is inserted, the adjustment groove (106) being arranged on one side of the upper part in the treatment box (7), the other end of the guide column (101) being provided with an ejector rod (105), one end of the ejector rod (105 ) is connected to the setting block (107), the setting block (107) being arranged displaceably in the setting groove (106), a carrier plate (111) being arranged at the bottom of the setting block (107), with an vertical water pipe at the bottom of the carrier plate (111) is arranged, with a shunt tube (109) at the bottom of the vertical water pipe is arranged, wherein a nozzle (110) is arranged on the bypass pipe (109), wherein the vertical water pipe is connected to the medication storage box (9) via a water delivery hose (108), the medication storage box (9) on top of the treatment box (7 ) is arranged.

Description

Technical area

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

State of the art

Pyromellitic dianhydride (abbreviation: dianhydride) is mainly used in the production of polyimide films, engineering plastics, coating additives, plastic additives and binders, etc. Because of its excellent mechanical, electrical, physical and chemical properties, polyimide is used in many fields such as electromechanics, aerospace, nuclear energy and electronics industries. The main industrial production method of dianhydride is gas phase catalytic oxidation, in which mesitylene is used as a raw material to produce dianhydride directly without dehydration. It has many advantages such as simple process, relatively low production cost, easy automatic operation, suitable for industrial production and so on. It is currently the mainstream method of making dianhydride in the world. In the production of pyromellitic dianhydride, a large amount of exhaust gas is generated, which contains more reaction by-products. Currently, it is mainly discharged into the atmosphere through water treatment, which creates a large amount of wastewater that typically needs to be cleaned.

The traditional sewage treatment device cannot uniformly spray the crystallizer into the sewage, cannot mix the crystallizer and sewage quickly, is not suitable for rapid crystallization of particles in sewage, and cannot perform multi-stage sewage treatment, and the treatment effect is not good.

Representation of the utility model

Purpose of the utility model

In order to solve the technical problems existing in the prior art, the utility model provides a device for recycling pyromellitic dianhydride oxidation wastewater, which can transport the crystallization agent uniformly into the wastewater, improve the crystallization efficiency of the wastewater and at the same time carry out multi-stage filtration of the wastewater to improve the wastewater purification effect.

Technical solution

The utility model provides a device for recycling pyromellitic dianhydride oxidation waste water, which has a treatment box, a separating plate arranged in the center of the treatment box, a crystallization box arranged on one side of the separating plate, a filter box arranged on the other side of the separating plate and a filter box on one side of the Treatment box arranged water inlet tube comprises, wherein a drug delivery assembly is arranged on top of the crystallization box, wherein a sorting filter assembly is arranged in the filter box, wherein the drug delivery assembly comprises a crankshaft, wherein the crankshaft is rotatably arranged in the support box, with a support box on the surface of one side of the treatment box is arranged, wherein one end of the crankshaft is articulated with a connecting rod, wherein the connecting rod is articulated to the ear plate, the ear plate at de r surface of one side of the guide column is arranged, wherein the guide column is arranged displaceably in the guide sleeve, wherein a guide sleeve is inserted on an inner side surface of the adjustment groove, the adjustment groove is arranged on one side of the upper part in the treatment box, the other end of the guide column with an ejector rod is provided, one end of the ejector rod being connected to the adjustment block, the adjustment block being slidably arranged in the adjustment groove, a support plate being arranged at the bottom of the adjustment block, an vertical water pipe being arranged at the bottom of the carrier plate, with a bypass pipe is arranged at the bottom of the vertical water pipe, wherein a nozzle is arranged on the bypass pipe, wherein the vertical water pipe is connected to the medication storage box via a water delivery hose, the medication storage box being arranged on top of the treatment case .

One end of the crankshaft is preferably connected to the drive shaft of the first drive motor via a coupling, the first drive motor being arranged on the surface of one side of the support box.

One end of the connecting rod is preferably connected to the crankshaft via a cardan shaft, the other end of the connecting rod being linked to the ear plate via a cardan shaft.

Several nozzles are preferably arranged, with several groups of nozzles being arranged equidistantly on the shunt pipe.

The sorting filter arrangement preferably comprises a support frame, an inner side of the support frame being provided with a first clamping groove, a second clamping groove and a third clamping groove, a first filter screen being arranged in the first clamping groove, a second filter screen being arranged in the second clamping groove, with a third filter screen is arranged in the third clamping groove, the support frame being connected to the treatment box via a lifting and lowering structure.

The mesh opening diameter of the first filter screen is preferably greater than that of the second filter screen, the mesh opening diameter of the second filter screen being greater than that of the third filter screen.

Preferably, the lifting and lowering structure comprises a longitudinal screw rod, the longitudinal screw rod being rotatably arranged in the first groove, one end of the longitudinal screw rod being connected to the drive shaft of the second drive motor on one side of the top of the treatment box, a screw nut being arranged on the longitudinal screw rod wherein one end of the screw nut is connected to the surface of one side of the support frame, a sliding sleeve being arranged on the surface of the other side of the support frame, the sliding sleeve being slidably arranged on the slide bar, the slide bar being fixedly arranged in the second groove wherein the first groove and the second groove are symmetrically arranged on both sides of the inner surface of the filter box.

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

Compared to the state of the art, the technical solution of the utility model has the following advantageous technical effects: The utility model can drive the transverse back and forth movement of the auxiliary connection pipe and can then transport the crystallization agent evenly to the crystallization box, which is practical for the complete mixing of the crystallization agent and the waste water and improves the crystallization efficiency of particles in wastewater. The utility model can perform multi-stage filtration of sewage, improve the cleanliness of sewage filtration, and can rise and fall, which is convenient for cleaning the filter screen and for use.

Figure list

• 1 Fig. 13 is a structural diagram of an apparatus for recycling pyromellitic dianhydride oxidation waste water according to the present utility model.
• 2 Fig. 13 is the main-view sectional structure diagram of an apparatus for recycling pyromellitic dianhydride oxidation waste water according to the present utility model.
• 3 Fig. 13 is the local sectional structure diagram of the main view of an apparatus for recycling pyromellitic dianhydride oxidation waste water according to the present utility model.
• 4th Fig. 13 is the main-view sectional structure diagram of the sorting filter assembly of an apparatus for recycling pyromellitic dianhydride oxidation waste water according to the present utility model.

List of reference symbols

1.

Drug delivery assembly;

2.

Crystallization box,

3rd

Partition plate,

4th

Filter box;

5.

Return pipe;

6th

Circulation pump;

7th

Treatment box,

8th.

Sorting filter arrangement;

9.

Medication storage box;

10.

Water inlet pipe;

101.

Guide pillar;

102.

Crankshaft;

103.

Support box;

104.

Connecting rod;

105.

Ejector rod;

106.

Adjustment groove;

107.

Adjustment block;

108.

Water delivery hose;

109.

Shunt pipe;

110.

Jet;

111.

Carrier plate;

801

First groove;

802.

Screw nut;

803

Longitudinal screw rod,

804

Second drive motor;

805

First filter screen;

806

Slide bar;

807

Sliding sleeve;

808,

Support frame,

809

Second groove;

810.

Second filter screen;

811.

Third filter screen.

Embodiments

To clarify the purpose, the technical solution and the advantages of the utility model, the utility model is described in more detail in combination with the specific embodiment and with reference to the accompanying figures. It goes without saying that these descriptions are only illustrative and are not intended to restrict the scope of the utility model. In addition, the description of the known structure and technology is omitted in the following description in order to avoid unnecessary confusion of the concept of utility model.

As in 1-4 As shown, an apparatus for recycling pyromellitic dianhydride oxidation waste water comprises a treatment box 7th , one in the middle of the treatment box 7th arranged partition plate 3 , one on one side of the partition plate 3 arranged crystallization box 2 , one on the other side of the partition plate 3 arranged filter box 4th and one on one side of the treatment box 7th arranged water inlet pipe 10 , with a drug delivery assembly 1 on top of the crystallization box 2 is arranged, with a sorting filter arrangement in the filter box 4th is arranged, the drug delivery assembly 1 a crankshaft 102 comprises, wherein the crankshaft 102 rotatable in the support box 103 is arranged, with a support box 103 on the surface of one side of the treatment box 7th is arranged, one end of the crankshaft 102 with a connecting rod 104 is articulated, the connecting rod 104 is hinged to the ear plate, the ear plate on the surface of one side of the guide column 101 is arranged, the guide column 101 is arranged displaceably in the guide sleeve, wherein a guide sleeve on an inner side surface of the adjustment groove 106 is inserted, the adjustment groove 106 on one side of the upper part in the treatment case 7th is arranged, the other end of the guide column 101 with an ejector rod 105 is provided, one end of the ejector rod 105 with the setting block 107 connected, the adjustment block 107 in the adjustment groove 106 Is slidably arranged, with a carrier plate 111 at the bottom of the adjustment block 107 is arranged, with a vertical water pipe at the bottom of the support plate 111 is arranged, with a shunt tube 109 is arranged at the bottom of the vertical water pipe, with a nozzle 110 on the shunt pipe 109 is arranged, the vertical water pipe via a water delivery hose 108 with the medication storage box 9 connected, with the medication storage box 9 on top of the treatment box 7th is arranged, one end of the crankshaft 102 is connected via a coupling to the drive shaft of the first drive motor, the first drive motor on the surface of one side of the support box 103 is arranged.

In the utility model, the first drive motor drives the crankshaft 102 to turn, and the crankshaft 102 drives the connecting rod 104 to rotate and move. The connecting rod 104 drives the pillar of leadership 101 to move back and forth in the guide sleeve. The guide pillar 101 drives the ejector rod 105 to move back and forth. The ejector rod 105 drives the adjustment block 107 to sit in the adjustment groove 106 to move back and forth. The adjustment block 107 drives the carrier plate 111 start moving back and forth. The carrier plate 111 drives the shunt pipe 109 start moving back and forth. The auxiliary connection pipe 109 drives the nozzle 110 start moving back and forth. The water delivery hose 108 directs the crystallization agent in the medication storage box 9 to the vertical water pipe. The vertical water pipe transports the crystallization agent to the auxiliary connection pipe 109 and sprays it through the nozzle 110 so that the crystallizer evenly to the crystallizer 2 can be transported. The wastewater is combined with the crystallization agent and the particles are crystallized.

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

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

In an optional embodiment there are multiple nozzles 110 arranged with multiple groups of nozzles 110 equidistant on the shunt pipe 109 are arranged.

It should be noted that the spray area can be expanded and the spray effect of the crystallizing agent can be improved.

In an optional embodiment, the sorting filter arrangement comprises 8th a support frame 808 , with an inside of the support frame 808 is provided with a first clamping groove, a second clamping groove and a third clamping groove, wherein a first filter screen 805 is arranged in the first clamping groove, with a second filter screen 810 is arranged in the second clamping groove, with a third filter screen 811 is arranged in the third clamping groove, wherein the support frame 808 with the treatment box 7th is connected via a lifting and lowering structure, the mesh opening diameter of the first filter screen 805 larger than that of the second filter screen 810 is the mesh opening diameter of the second filter screen 810 larger than that of the third filter screen 811 is.

It should be noted that the waste water in the crystallization box 2 through a pipe to the filter box 4th is transported and the wastewater successively the first filter screen 805 , the second filter screen 810 and the third filter screen 811 happened. The first filter screen 805 , the second filter screen 810 and the third filter screen 811 serve for the three-stage filtration of wastewater, which can filter impurities with different particle sizes.

In an optional embodiment, the lifting and lowering structure comprises a longitudinal screw rod 803 , the longitudinal screw rod 803 rotatable in the first groove 801 is arranged, one end of the longitudinal screw rod 803 with the drive shaft of the second drive motor 804 on one side of the top of the treatment box 7th is connected, with a screw nut 802 on the longitudinal screw rod 803 is arranged, with one end of the screw nut 802 with the surface of one side of the support frame 808 is connected, with a sliding sleeve 807 on the surface of the other side of the support frame 808 is arranged, the sliding sleeve 807 slidable on the slide bar 806 is arranged, the slide rod 806 firmly in the second groove 809 is arranged, the first groove 801 and the second groove 809 symmetrical on both sides of the inner surface of the filter box 4th are arranged.

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 the longitudinal screw rod 803 drives the nut to rotate 802 the support frame 808 drives to move, and the support frame 808 the sliding sleeve 807 propels itself on the slide bar 806 to move, and the support frame 808 the first filter screen 805 , the second filter screen 810 and the third filter screen 811 drives to move. At the same time the first filter screen 805 , the second filter screen 810 and the third filter screen 811 from the filter box 4th removed and the operator cleans the first filter screen 805 , the second filter screen 810 and the third filter screen 811 .

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

It should be noted that the purified wastewater in the filter box 4th can be recycled.

It goes without saying that the above embodiment of the utility model only serves to illustrate or explain the principle of the utility model and does not represent a limitation of the utility model. Without deviating from the spirit and scope of the utility model, every change, equivalent replacement, improvement, etc. should therefore be included in the scope of protection of the utility model. In addition, the appended utility model claims are intended to cover all changes and modifications within the scope and limits of the appended claims or equivalent forms of that scope and limits.

Claims (8)

A device for recycling pyromellitic dianhydride oxidation waste water, characterized in that it has a treatment box (7), a separating plate (3) arranged in the middle of the treatment box (7), a crystallization box (2) arranged on one side of the separating plate (3), a filter box (4) located on the other side of the partition plate (3) and a water inlet tube (10) located on one side of the treatment box (7), a drug delivery assembly (1) being located on top of the crystallization box (2), wherein a sorting filter arrangement is arranged in the filter box (4), the drug delivery arrangement (1) comprising a crankshaft (102), the crankshaft (102) being rotatably arranged in the support box (103), with a support box (103) on the surface of one side of the Treatment box (7) is arranged, one end of the crankshaft (102) is articulated with a connecting rod (104) t, the connecting rod (104) being articulated to the ear plate, the ear plate being arranged on the surface of one side of the guide column (101), the guide column (101) being arranged displaceably in the guide sleeve, with a guide sleeve on an inner side surface of the Adjustment groove (106) is inserted, the adjustment groove (106) being arranged on one side of the upper part in the treatment case (7), the other end of the guide column (101) being provided with an ejector rod (105), one end of the ejector rod ( 105) with the Adjusting block (107) is connected, the adjusting block (107) being arranged displaceably in the adjusting groove (106), a carrier plate (111) being arranged at the bottom of the adjusting block (107), with an vertical water pipe at the bottom of the carrier plate (111) is arranged, wherein a bypass pipe (109) is arranged at the bottom of the vertical water pipe, a nozzle (110) is arranged on the bypass pipe (109), the vertical water pipe being connected to the medication storage box (9) via a water delivery hose (108), wherein the medication storage box (9) is arranged on top of the treatment box (7). A device for recycling pyromellitic dianhydride oxidation wastewater according to Claim 1 , characterized in that one end of the crankshaft (102) is connected to the drive shaft of the first drive motor via a coupling, the first drive motor being arranged on the surface of one side of the support box (103). A device for recycling pyromellitic dianhydride oxidation wastewater according to Claim 2 , characterized in that one end of the connecting rod (104) is connected to the crankshaft (102) via a cardan shaft, the other end of the connecting rod (104) being linked to the ear plate via a cardan shaft. A device for recycling pyromellitic dianhydride oxidation wastewater according to Claim 3 , characterized in that several nozzles (110) are arranged, several groups of nozzles (110) being arranged equidistantly on the shunt pipe (109). A device for recycling pyromellitic dianhydride oxidation wastewater according to Claim 4 , characterized in that the sorting filter arrangement (8) comprises a support frame (808), an inner side of the support frame (808) being provided with a first clamping groove, a second clamping groove and a third clamping groove, a first filter screen (805) in the first A clamping groove is arranged, a second filter screen (810) being arranged in the second clamping groove, a third filter screen (811) being arranged in the third clamping groove, the support frame (808) with the treatment box (7) via a lifting and lowering structure connected is. A device for recycling pyromellitic dianhydride oxidation wastewater according to Claim 5 , characterized in that the mesh opening diameter of the first filter screen (805) is greater than that of the second filter screen (810), the mesh opening diameter of the second filter screen (810) being greater than that of the third filter screen (811). A device for recycling pyromellitic dianhydride oxidation wastewater according to Claim 6 , characterized in that the lifting and lowering structure comprises a longitudinal screw rod (803), the longitudinal screw rod (803) being rotatably arranged in the first groove (801), one end of the longitudinal screw rod (803) being connected to the drive shaft of the second drive motor (804) on one side of the top of the treatment box (7), a nut (802) being arranged on the longitudinal screw rod (803), one end of the nut (802) being connected to the surface of one side of the support frame (808), wherein a sliding sleeve (807) is arranged on the surface of the other side of the support frame (808), the sliding sleeve (807) being slidably arranged on the sliding rod (806), the sliding rod (806) being fixedly arranged in the second groove (809) is, wherein the first groove (801) and the second groove (809) are arranged symmetrically on both sides of the inner surface of the filter box (4). A device for recycling pyromellitic dianhydride oxidation wastewater according to Claim 7 , characterized in that a return pipe (5) is arranged on the surface of one side of the filter box (4), a circulation pump (6) being arranged on the return pipe (5).

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