A centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinolinecarboxylate.

Abstract

This utility model discloses a centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinoline carboxylate, belonging to the field of wastewater collection technology. It includes a centrifugal filtration device, a distillation tower, an oxidation tank, a membrane filtration system, an activated carbon adsorption box, and a recovery water tank arranged sequentially. The activated carbon adsorption box includes a box body with several symmetrically arranged support legs at the bottom. An outlet is located at the top of the box body, an inlet is located on the bottom side wall, and a wastewater outlet is located at the center of the bottom. The box body has a water distribution layer, a coarse-particle activated carbon layer, and a fine-particle activated carbon layer distributed sequentially from bottom to top. This centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinoline carboxylate purifies the wastewater after centrifugation, allowing it to be reused as process water or cooling water, reducing the amount of fresh water required.

Description

Technical Field

[0001] This utility model relates to the field of wastewater collection technology, and in particular to a centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinolinecarboxylate. Background Technology

[0002] In the process of preparing dichloroquinoline acid, water is prepared in a precipitation vessel, solid waste from the oxide material is filtered out, and then the material is added to the precipitation vessel and stirred for 15 minutes. The material is then placed in a centrifuge, centrifuged, washed with water until the pH reaches 3–4.5, and finally discharged. The finished product is then dried in a drying oven (120℃, -0.09MPa), weighed, and packaged to obtain dichloroquinoline acid technical grade. The wastewater generated during the centrifugation process contains unreacted raw materials, byproducts, organic solvents, and other chemical substances, requiring recycling and treatment. Based on this, this invention proposes a centrifugation wastewater collection device for the production of sodium dichloroquinoline-8-quinoline carboxylate. Utility Model Content

[0003] The purpose of this invention is to provide a centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinolinecarboxylate, thereby solving the aforementioned problems.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinolinecarboxylate, comprising a centrifugal filtration device, a distillation tower, an oxidation tank, a membrane filtration system, an activated carbon adsorption box, and a recovery water tank arranged sequentially. The activated carbon adsorption box includes a box body with several symmetrically arranged support legs at the bottom. The top of the box body has an outlet, the bottom side wall has an inlet, and the bottom center has a wastewater outlet. The box body has a water distribution layer, a coarse granular activated carbon layer, and a fine granular activated carbon layer distributed sequentially from bottom to top.

[0006] Furthermore, a quartz sand pad is provided inside the water distribution layer, the quartz sand pad is placed inside the open box, the top of the open box is provided with a stainless steel wire mesh through a mounting base, and the bottom of the open box is a perforated plate.

[0007] Furthermore, the aperture of the stainless steel wire mesh and the perforated plate is smaller than the particle size of the quartz sand in the quartz sand pad.

[0008] Furthermore, the quartz sand particle size of the quartz sand cushion layer is 3-5mm.

[0009] Furthermore, an adjustment plate is slidably provided at the bottom of the open box, and the adjustment plate has through holes with the same diameter as the holes in the perforated plate.

[0010] Furthermore, the outer side wall of the adjusting plate is symmetrically integrally formed with a limiting block, and the bottom of the outer side wall of the open box is symmetrically provided with a base. The base is provided with a limiting groove that cooperates with the limiting block, and the base is provided with a plurality of tightening threaded holes. The tightening threaded holes are threaded with tightening bolts, and the tightening bolts pass through the tightening threaded holes and abut against the limiting block.

[0011] Furthermore, a push plate is provided at the front end of the base.

[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0013] This utility model relates to a centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinoline carboxylate. The device further separates suspended solids from the wastewater through a centrifugal filtration system; recovers organic solvents such as methanol, toluene, and chlorinated hydrocarbons from the wastewater through a distillation tower for recycling; removes recalcitrant organic matter (such as dichloroquinoline acid intermediates) through an oxidation pond, bringing the wastewater up to reuse standards; retains suspended solids in the wastewater through a membrane filtration system; and removes recalcitrant organic matter (such as dichloroquinoline acid intermediates) from the wastewater through a blower-activated carbon adsorption layer in an activated carbon adsorption box, bringing the wastewater up to reuse standards or ensuring it meets discharge standards. In summary, this centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinoline carboxylate purifies the centrifuged wastewater, allowing it to be reused as process water or cooling water, reducing the amount of fresh water required. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a flow chart of the centrifugal wastewater collection device in the production of sodium dichloroquinoline-8-quinoline carboxylate according to this utility model;

[0016] Figure 2 This is a schematic diagram of the activated carbon adsorption box structure;

[0017] Figure 3 This is a side view of the activated carbon adsorption box;

[0018] Figure 4 This is a schematic diagram of the internal structure of the water distribution layer;

[0019] Figure 5 This is a magnified view of a portion of A;

[0020] Explanation of reference numerals in the attached drawings: 1. Centrifugal filtration device; 2. Distillation column; 3. Oxidation tank; 4. Membrane filtration system; 5. Activated carbon adsorption box; 6. Recycled water tank; 7. Base; 8. Open box; 9. Adjusting plate; 10. Perforated plate; 11. Stainless steel wire mesh; 12. Mounting base; 13. Front push plate; 14. Tightening threaded hole;

[0021] 501. Housing; 502. Support legs; 503. Inlet; 504. Outlet; 505. Wastewater outlet; 506. Water distribution layer; 507. Coarse granular activated carbon layer; 508. Fine granular activated carbon layer;

[0022] 701, Limiting groove;

[0023] 901, Limit Block. Detailed Implementation

[0024] like Figure 1-5 As shown, a centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinoline carboxylate includes a centrifugal filtration device 1, a distillation tower 2, an oxidation tank 3, a membrane filtration system 4, an activated carbon adsorption tank 5, and a recovery water tank 6, installed sequentially. The centrifugal filtration device 1 separates suspended solids from the wastewater. The separated solid residue may contain catalysts such as copper salts, which can be returned to the reaction system or entrusted to a qualified unit for recovery of precious metals. The distillation tower 2 recovers organic solvents such as methanol, toluene, and chlorinated hydrocarbons from the wastewater. The oxidation tank 3 removes recalcitrant organic matter (such as dichloroquinoline acid intermediates) to make the wastewater meet reuse standards, for example, by using Fenton's reagent (H2O2 + Fe²⁺), ozone oxidation, or photocatalytic oxidation to decompose organic pollutants into CO2 and H2O, reducing COD (chemical oxygen demand). The membrane filtration system 4 uses a combination of ultrafiltration (UF) and reverse osmosis (RO) processes to remove residual inorganic salts and organic matter, and retains suspended solids in the wastewater to prevent clogging of the subsequent activated carbon adsorption channels. The activated carbon adsorption box 5 removes recalcitrant organic matter such as dichloroquinoline acid intermediates, enabling wastewater to meet reuse standards or be discharged in compliance with standards.

[0025] The activated carbon adsorption box 5 includes a box body 501, with several support legs 502 symmetrically installed at the bottom of the box body 501. A water outlet 504 is installed at the top of the box body 501, a water inlet 503 is installed on the bottom side wall, and a wastewater outlet 505 is installed at the center of the bottom. The wastewater outlet 505 is used for rinsing the activated carbon layer. The box body 501 has a water distribution layer 506, a coarse-particle activated carbon layer 507, and a fine-particle activated carbon layer 508 distributed sequentially from bottom to top. A gradient filling method of "coarse-particle activated carbon (bottom layer) + fine-particle activated carbon (top layer)" is adopted. The bottom layer traps large particulate impurities, while the top layer concentrates the adsorption of small molecule organic matter, reducing the overall pressure drop.

[0026] A quartz sand cushion layer is installed within the water distribution layer 506 to ensure that wastewater passes evenly through the bed. The quartz sand cushion layer is placed inside the open box 8. A stainless steel wire mesh 11 is installed on the top of the open box 8 via a mounting base 12 to prevent particle displacement caused by airflow disturbance. The bottom of the open box 8 is a perforated plate 10. The aperture of the stainless steel wire mesh 11 and the perforated plate 10 is smaller than the particle size of the quartz sand in the quartz sand cushion layer to prevent the quartz sand from mixing with the activated carbon.

[0027] The quartz sand in the quartz sand cushion layer has a particle size of 3-5mm, which is larger than that of activated carbon to prevent material leakage. It is generally laid 10-15cm thick.

[0028] An adjusting plate 9 is slidably installed on the bottom of the open box 8. The adjusting plate 9 has through holes with the same diameter as the holes in the perforated plate 10. The size of the holes can be adjusted by the misalignment of the adjusting plate 9 relative to the perforated plate 10, so as to meet the requirements of different quartz sand particle sizes for hole size.

[0029] The adjusting plate 9 has symmetrically integrally formed limiting blocks 901 on its outer side wall. A base 7 is symmetrically installed at the bottom of the outer side wall of the open box 8. The base 7 has a limiting groove 701 that mates with the limiting block 901, allowing it to move axially and preventing vertical movement. The base 7 has several tightening threaded holes 14, with tightening bolts threaded into each hole 14. The tightening bolts pass through the tightening threaded holes 14 and abut against the limiting block 901. Once the position is adjusted, it is fixed using the tightening bolts.

[0030] The front end of the base 7 is equipped with a push plate 13, which serves to seal and facilitate replacement. The upper surface of the base 7 is provided with a slot structure, which is used to lock onto the locking block inside the box 501, enabling quick positioning and installation, and reducing the impact of water flow on the overall water distribution layer 506, thus significantly improving the stability and economy of the activated carbon adsorption box 5 in the treatment of dichloroquinoline acid wastewater.

[0031] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A centrifugal waste water collecting device in the production of sodium dichloroquinolin-8-quinolinecarboxylate, characterized by: The system includes a centrifugal filtration device (1), a distillation tower (2), an oxidation tank (3), a membrane filtration system (4), an activated carbon adsorption box (5), and a recovery water tank (6) arranged in sequence. The activated carbon adsorption box (5) includes a box body (501), and several support legs (502) are symmetrically arranged at the bottom of the box body (501). The top of the box body (501) is provided with a water outlet (504), the bottom side wall is provided with a water inlet (503), and the bottom center is provided with a sewage outlet (505). The box body (501) is provided with a water distribution layer (506), a coarse particle activated carbon layer (507), and a fine particle activated carbon layer (508) arranged from bottom to top.

2. The device for collecting centrifugal waste water in the production of sodium dichloroquinolin-8-quinolinecarboxylate according to claim 1, characterized in that: The water distribution layer (506) is provided with a quartz sand pad, which is placed inside the open box (8). The top of the open box (8) is provided with a stainless steel wire mesh (11) through the mounting base (12), and the bottom of the open box (8) is a perforated plate (10).

3. The device for collecting centrifugal waste water in the production of sodium dichloroquinolin-8-quinolinecarboxylate according to claim 2, characterized in that: The aperture of the stainless steel wire mesh (11) and the perforated plate (10) is smaller than the particle size of the quartz sand in the quartz sand cushion layer.

4. The device for collecting centrifugal waste water in the production of sodium dichloroquinolin-8-quinolinecarboxylate according to claim 2, characterized in that: The quartz sand in the quartz sand cushion layer has a particle size of 3-5mm.

5. The device for collecting centrifugal waste water in the production of sodium dichloroquinolin-8-quinolinecarboxylate according to claim 2, characterized in that: The bottom of the open box (8) is slidably provided with an adjustment plate (9), and the adjustment plate (9) has a through hole with the same diameter as the hole of the perforated plate (10).

6. The centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinolinecarboxylate according to claim 5, characterized in that: The adjusting plate (9) has a symmetrically integrally formed limiting block (901) on its outer side wall. The bottom of the outer side wall of the open box (8) is symmetrically provided with a base (7). The base (7) has a limiting groove (701) that cooperates with the limiting block (901). The base (7) has a plurality of tightening threaded holes (14). Tightening bolts are threadedly connected to the tightening threaded holes (14). The tightening bolts pass through the tightening threaded holes (14) and abut against the limiting block (901).

7. The centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinolinecarboxylate according to claim 6, characterized in that: The base (7) is provided with a front push plate (13) at its front end.

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