CN217202374U

CN217202374U - Zinc-plating waste water filter equipment

Info

Publication number: CN217202374U
Application number: CN202220933516.1U
Authority: CN
Inventors: 许继方
Original assignee: Shanghai Yuji Metal Products Co ltd
Current assignee: Shanghai Yuji Metal Products Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-08-16
Anticipated expiration: 2032-04-21

Abstract

The application relates to a galvanized wastewater filtering device, which comprises a shell, wherein a reaction cavity for the reaction and precipitation of the galvanized wastewater is arranged in the shell; the reaction cavity is connected with a filtrate pipe, and the filtrate pipe is used for leading out the clear liquid after reaction in the reaction cavity; a liquid discharge pipe is arranged at the bottom of the reaction cavity, the lower end of the liquid discharge pipe is communicated with the electrolysis cavity, and the liquid discharge pipe is provided with a control valve which is used for controlling the opening and closing of the liquid discharge pipe; a liquid storage cavity for storing sodium hydroxide solution is also arranged in the shell, a liquid conveying pipe is connected between the liquid storage cavity and the reaction cavity, and an anti-corrosion valve is arranged on the liquid conveying pipe; still be equipped with the filter chamber in the casing, be equipped with communicating pipe between filter chamber and the electrolysis chamber, be equipped with the filter core that is used for filtering liquid impurity in the filter chamber, the filter chamber still is equipped with the catheter, and the catheter is used for exporting the liquid after filtering in the filter chamber. The reaction cavity, the electrolysis cavity, the liquid storage cavity and the filter cavity are arranged, so that the recycling of the zinc-plating waste water is realized, and the discharge problem of the zinc-plating waste water is improved.

Description

Zinc-plating waste water filter equipment

Technical Field

The application relates to the field of wastewater treatment, in particular to a zinc-plating wastewater filtering device.

Background

Galvanization comprises electrogalvanizing and hot galvanizing, and is the current mainstream corrosion-resistant surface protection technology for steel materials. The surface of the metal material needs to be pretreated before galvanization, and the pretreatment comprises degreasing, acid washing, plating assistant dipping, galvanization and the like. High-concentration wastewater with different water qualities, such as degreasing wastewater, pickling wastewater, waste plating assistant and the like, can be generated in the galvanizing process.

In the galvanizing process, the generated wastewater contains high-concentration zinc ions, so that the direct discharge not only causes the waste of zinc resources, but also generates a large amount of zinc-containing sludge to cause environmental pollution to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the drainage problem of zinc-plating waste water, this application provides a zinc-plating waste water filter equipment.

The application provides a zinc-plating waste water filter equipment adopts following technical scheme:

a zinc-plating waste water filtering device comprises a shell, wherein a reaction cavity for reaction and precipitation of zinc-plating waste water is arranged in the shell; the reaction cavity is connected with a filtrate pipe, and the filtrate pipe is used for leading out clear liquid after reaction in the reaction cavity;

a liquid discharge pipe is arranged at the bottom of the reaction cavity, the lower end of the liquid discharge pipe is communicated with an electrolysis cavity for carrying out electrolysis treatment on liquid, and the liquid discharge pipe is provided with a control valve for controlling the opening and closing of the liquid discharge pipe;

a liquid storage cavity for storing a sodium hydroxide solution is further arranged in the shell, a liquid conveying pipe is connected between the liquid storage cavity and the reaction cavity, an anti-corrosion valve is arranged on the liquid conveying pipe, and the anti-corrosion valve is used for controlling the opening and closing of the liquid conveying pipe;

the shell is also internally provided with a filter chamber, a communicating pipe is arranged between the filter chamber and the electrolysis chamber, the filter chamber is internally provided with a filter element for filtering liquid impurities, and the filter chamber is also provided with a liquid guide pipe for guiding out the liquid filtered in the filter chamber.

Through the technical scheme, set up the reaction chamber, the electrolysis chamber, stock solution chamber and filter chamber, zinc-plating waste water fully reacts with calcium hydroxide solution in the reaction chamber and generates after deposiing, the sodium hydroxide solution that lets in the stock solution chamber reacts with the sediment of reaction intracavity, deposit zinc hydroxide and dissolve, liquid after dissolving lets in the electrolysis intracavity and carries out metal impurity electrolysis and filters, liquid after will filtering metal impurity lets in the filter chamber again and filters, the liquid filtered in the filter chamber can be used for the zinc-plating again, the recycle of zinc-plating waste water has been realized, the discharge problem of zinc-plating waste water has been improved.

Optionally, the fluid-discharge tube includes macrostoma portion, osculum portion and connects in the transition portion of macrostoma portion and osculum portion, the upper end of macrostoma portion sets up towards the reaction intracavity, the lower extreme of osculum portion sets up towards the electrolysis intracavity, the diameter of macrostoma portion is greater than the diameter of osculum portion, the diameter of transition portion is diminished by macrostoma portion to osculum portion direction gradually.

Through above-mentioned technical scheme, set up macrostoma portion, osculum portion and transition portion, reduce the possibility that the sediment blockked up the fluid-discharge tube, improve the whole reliability of operation of device.

Optionally, an anode plate for communicating with a power supply anode and a cathode plate for communicating with a power supply cathode are arranged in the electrolytic chamber;

the anode plate with the negative plate all is the level setting, the anode plate is located the top of negative plate, the anode plate with the negative plate separates into cavity, well cavity and lower cavity with the electrolysis chamber, the anode plate is equipped with the anode hole that is arranged in communicateing cavity and cavity down, the cathode tube is equipped with the cathode hole that is arranged in communicateing cavity and cavity down.

Through the technical scheme, after the solution after reaction in the reaction chamber is led into the electrolytic cavity, the solution can fully react with the anode plate, and metal impurities can be adsorbed on the cathode plate, so that impurities in the filtrate are reduced, and the quality of the recovered filtrate is improved.

Optionally, the upper end of the cathode plate is provided with a corrugated part.

Through above-mentioned technical scheme, increase the adsorption area of negative pole to metallic impurity, improve the quality that the filtrating was retrieved.

Optionally, the filter element is provided with a plurality of layers in the filter cavity along the vertical direction.

Through above-mentioned technical scheme, carry out abundant absorption to the organic impurity in the filtrating of deriving in the electrolysis chamber, reduce the organic impurity of filtrating, improve the quality of retrieving the filtrating.

Optionally, the material of the filter element is activated carbon.

Through above-mentioned technical scheme, the active carbon can adsorb the organic impurity in the filtrating, improves the quality that the filtrating was retrieved.

Optionally, be equipped with the filtrating chamber in the casing, the one end and the filtrating chamber intercommunication of reaction chamber are kept away from to the filtrate pipe, just the filtrate pipe is located the top of reaction chamber cavity in the one end of reaction intracavity, the filtrate pipe is equipped with the suction pump, the suction pump is used for passing through the filtrate pipe with the clear liquid of reaction intracavity liquid upper end and extracts to the filtrating chamber.

Through above-mentioned technical scheme, extract the clear liquid of the liquid upper end after reacting in the reaction chamber, can be used as the washing of plating, improve resource utilization.

Optionally, the casing is equipped with the piston hole with stock solution chamber intercommunication, the piston hole is located the upper end in stock solution chamber, just the axis in piston hole and the coaxial setting of axis of transfer line, the anticorrosion valve is including wooden chock plug one that is used for blockking up the piston hole, the wooden second of stopper that is used for blockking up the transfer line and the wooden pole of connecting wooden chock plug one and wooden chock plug two.

Through above-mentioned technical scheme, set up wooden chock plug one, wooden pole and wooden chock plug two, reduce the reaction with sodium hydroxide and corrode, improve the durability of device.

Optionally, a lifting ring is arranged at the upper end of the first wooden plug head, and the lifting ring is used for lifting the wooden plug head upwards to be separated from the piston hole.

Through above-mentioned technical scheme, through carrying the ring, can extract wooden chock plug one from the piston hole, and can also extract wooden chock plug two from the transfer line through the wooden pole of connecting, make things convenient for the leading-in and the derivation of the sodium hydroxide solution of stock solution intracavity, improve the simple operation nature.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) by arranging the reaction cavity, the electrolysis cavity, the liquid storage cavity and the filter cavity, after the galvanized wastewater fully reacts with a calcium hydroxide solution in the reaction cavity to generate a precipitate, a sodium hydroxide solution introduced into the liquid storage cavity reacts with the precipitate in the reaction cavity to dissolve the zinc hydroxide precipitate, the dissolved liquid is introduced into the electrolysis cavity to carry out metal impurity electrolysis filtration, the liquid after metal impurity filtration is introduced into the filter cavity again to be filtered, and the liquid filtered in the filter cavity can be reused for galvanizing, so that the recycling of the galvanized wastewater is realized, and the discharge problem of the galvanized wastewater is improved;

(2) the possibility of blocking a liquid discharge pipe by precipitation is reduced by arranging the large opening part, the small opening part and the transition part, and the reliability of the whole operation of the device is improved;

(3) through setting up wooden chock plug first, wooden pole and wooden chock plug second, reduce the reaction with sodium hydroxide and corrode, improve the durability of device.

Drawings

Fig. 1 is a schematic overall structure diagram of the present embodiment.

Fig. 2 is a schematic sectional view of the entire structure of the present embodiment.

Fig. 3 is a schematic cross-sectional view of the whole structure of the present embodiment, which is used for showing the structure of the filter cavity.

Reference numerals are as follows: 1. a housing; 2. a reaction chamber; 3. a liquid storage cavity; 4. an electrolysis chamber; 41. an upper cavity; 42. a middle cavity; 43. a lower cavity; 5. a filter chamber; 6. a filtrate chamber; 7. a transfusion tube; 8. a piston bore; 9. an anti-corrosion valve; 91. a first wooden plug head; 92. a second wooden plug head; 93. a wooden pole; 94. lifting the ring; 10. a liquid inlet hole; 11. a liquid discharge pipe; 111. a large mouth part; 112. a transition section; 113. a small mouth part; 12. a control valve; 13. an anode plate; 14. a cathode plate; 15. an anode hole; 16. a cathode hole; 17. a wrinkle part; 18. a communicating pipe; 19. adjusting a valve; 20. a filter element; 21. a catheter; 22. a filtrate pipe; 221. a first pipe; 222. a second pipe; 23. a water pump; 24. and a liquid discharge port.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a zinc-plating waste water filter equipment.

Referring to fig. 1 and 2, a reaction chamber 2, a liquid storage chamber 3, an electrolysis chamber 4, a filter chamber 5 and a filtrate chamber 6 are arranged in a shell 1. Stock solution chamber 3 is located the upper end of reaction chamber 2, is connected with transfer line 7 between stock solution chamber 3 and the reaction chamber 2, and transfer line 7 sets up along vertical direction, and the lower extreme of transfer line 7 runs through the last chamber wall of reaction chamber 2 and communicates with the cavity of reaction chamber 2, and the upper end of transfer line 7 runs through the lower chamber wall of stock solution chamber 3 and communicates with the cavity of stock solution chamber 3. Piston hole 8 has been seted up to the upper end of casing 1, and piston hole 8 is followed vertical direction and is run through the upper chamber wall of stock solution chamber 3 downwards and communicate with 3 cavities in stock solution chamber.

Referring to fig. 2 and 3, the axis of the piston hole 8 and the axis of the infusion tube 7 are arranged in a collinear manner, and an anti-corrosion valve 9 is connected between the piston hole 8 and the infusion tube 7. The corrosion prevention valve 9 includes a wood plug head 91, a wood plug head two 92, and a wood rod 93 connected to the wood plug head one 91 and the wood plug head two 92. The first wooden plug 91, the second wooden plug 92 and the wooden rod 93 are all cylindrical, the diameters of the first wooden plug 91 and the second wooden plug 92 are the same and are larger than the diameter of the wooden rod 93, the second wooden plug 92 penetrates through the piston hole 8 and the reaction cavity 2 and is embedded into the infusion tube 7 to block the infusion tube 7, and the first wooden plug 91 is embedded into the piston hole 8 to block the piston head. And a lifting ring 94 is fixed on the end surface of the first wood plug 91, which is far away from the second wood plug 92, and the axis of the lifting ring 94 is perpendicular to the axis of the first wood plug 91.

In actual use, the reservoir 3 is used for storing the sodium hydroxide solution, and the sodium hydroxide solution is introduced into the reservoir 3 from the piston hole 8. The first wooden plug 91 can be disengaged from the piston hole 8 and the second wooden plug 92 can be disengaged from the infusion tube 7 by pulling the lifting ring 94 upward.

The lateral wall of casing 1 has seted up feed liquor hole 10, and feed liquor hole 10 runs through the lateral wall of casing 1 and communicates with the cavity of reaction chamber 2 along the horizontal direction, and feed liquor hole 10 is used for leading-in zinc-plating waste water in to reaction chamber 2.

Electrolysis chamber 4 is located the lower extreme of reaction chamber 2, is connected with fluid-discharge tube 11 between electrolysis chamber 4 and the reaction chamber 2, and fluid-discharge tube 11 is vertical setting, and the upper end of fluid-discharge tube 11 runs through to reaction chamber 2 in and communicate with the cavity of reaction chamber 2, and the lower extreme of fluid-discharge tube 11 runs through to in the electrolysis chamber 4 and communicate with the cavity of electrolysis chamber 4.

Liquid discharge pipe 11 includes large opening portion 111, transition portion 112, and small opening portion 113 in this order along the vertical direction, and the lower end of large opening portion 111 and the upper end of small opening portion 113 are connected respectively to both ends of transition portion 112 in the vertical direction. The diameter of the large opening portion 111 is larger than that of the small opening portion 113, and the diameter of the transition portion 112 is gradually reduced from the large opening portion 111 to the small opening portion 113 in the vertical direction. The control valve 12 is connected to the small port 113, and the control valve 12 is provided in the housing 1 to control opening and closing of the small port 113.

In the actual use process, sediment is easily generated in the reaction cavity 2, and the arrangement of the large opening part 111, the transition part 112 and the small opening part 113 can reduce the blockage of pipelines caused by sediment.

An anode plate 13 and a cathode plate 14 are fixed in the electrolysis chamber 4 along the vertical direction, the anode plate 13 and the cathode plate 14 are both arranged horizontally, and the anode plate 13 is positioned above the cathode plate 14. The anode plate 13 and the cathode plate 14 divide the electrolysis chamber 4 into an upper chamber 41, a middle chamber 42 and a lower chamber 43 which are distributed from top to bottom in sequence along the vertical direction. A plurality of anode holes 15 are formed in the end face of the anode plate 13 in the vertical direction, and the upper cavity 41 and the middle cavity 42 are communicated through the plurality of anode holes 15. A plurality of cathode holes 16 are formed on the end surface of the cathode plate 14 in the vertical direction, and the middle cavity 42 and the lower cavity 43 are communicated through the plurality of cathode holes 16. The upper end surface of the cathode plate 14 is provided with a corrugated portion 17, and the interface of the corrugated portion 17 in the vertical direction is corrugated.

During the electrolysis, the corrugated part 17 can increase the surface area of the upper end of the cathode plate 14, thereby enhancing the adsorption capacity of the cathode plate 14 to metal impurities in the liquid.

A communicating pipe 18 is connected between the filter chamber 5 and the electrolysis chamber 4, the communicating pipe 18 is horizontally arranged, the filter chamber 5 and the electrolysis chamber 4 are communicated through the communicating pipe 18, a regulating valve 19 is fixed on the vertical side wall of the shell 1, and the regulating valve 19 is connected with the communicating pipe 18 and used for controlling the on-off of the communicating pipe 18.

The wall of the filter cavity 5 is fixed with a plurality of layers of filter elements 20 along the vertical direction, and the material of each layer of filter element 20 is activated carbon. A liquid guide pipe 21 is fixed on the cavity wall of the filter cavity 5, and the liquid guide pipe 21 penetrates through the shell 1 and is communicated with the outside of the shell 1.

Referring to fig. 1 and 2, the filtrate cavity 6 is located above the filter cavity 5, the filtrate pipe 22 is connected between the filtrate cavity 6 and the reaction cavity 2, the filtrate pipe 22 includes a first pipe 221 and a second pipe 222, one end of the first pipe 221 is communicated with the cavity of the reaction cavity 2, the other end of the first pipe 221 is connected with the water suction pump 23, the first pipe 221 is connected to a water suction port of the water suction pump 23, and the water suction pump 23 is fixed at the upper end of the housing 1. One end of the second pipe 222 is connected with the water outlet of the water pump 23, and the other end of the second pipe 222 is communicated with the cavity of the filtrate cavity 6. The shell 1 is further provided with a liquid outlet 24, and the liquid outlet 24 is used for leading out the clear liquid in the filtrate cavity 6.

The working principle of the embodiment is as follows: the zinc-plating wastewater and the calcium hydroxide solution are sequentially injected into the reaction cavity 2 through the liquid inlet hole 10, so that the zinc-plating wastewater and the calcium hydroxide solution react to generate zinc hydroxide precipitate, the zinc hydroxide precipitate is precipitated at the bottom of the reaction cavity 2, and then the water pump 23 pumps supernatant liquid of liquid in the reaction cavity 2 into the filtrate cavity 6 for storage; then the second wood stopper 92 is separated from the liquid conveying pipe 7, so that the sodium hydroxide solution in the liquid storage cavity 3 flows into the reaction cavity 2 from the liquid conveying pipe 7 to react with zinc hydroxide, and the precipitate disappears; opening a control valve 12 to enable a liquid discharge pipe 11 to be conducted, enabling the liquid in the reaction cavity 2 to flow into the electrolysis cavity 4, and performing electrolytic separation on the metal impurities through an anode plate 13 and a cathode plate 14 in the electrolysis cavity 4; the electrolyzed liquid is introduced into the filter chamber 5 from the communicating pipe 18, and the liquid is filtered from bottom to top by the multi-layer filter element 20 to remove organic impurities by the liquid guide pipe 21.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a zinc-plating waste water filter equipment which characterized in that: comprises a shell (1), wherein a reaction cavity (2) for the reaction and precipitation of the galvanizing waste water is arranged in the shell (1); the reaction cavity (2) is connected with a filtrate pipe (22), and the filtrate pipe (22) is used for leading out the clear liquid after the reaction in the reaction cavity (2);

a liquid discharge pipe (11) is arranged at the bottom of the reaction cavity (2), the lower end of the liquid discharge pipe (11) is communicated with an electrolysis cavity (4) for carrying out electrolysis treatment on liquid, a control valve (12) is arranged on the liquid discharge pipe (11), and the control valve (12) is used for controlling the opening and closing of the liquid discharge pipe (11);

a liquid storage cavity (3) for storing a sodium hydroxide solution is further formed in the shell (1), a liquid conveying pipe (7) is connected between the liquid storage cavity (3) and the reaction cavity (2), an anti-corrosion valve (9) is arranged on the liquid conveying pipe (7), and the anti-corrosion valve (9) is used for controlling the opening and closing of the liquid conveying pipe (7);

still be equipped with filter chamber (5) in casing (1), be equipped with communicating pipe (18) between filter chamber (5) and electrolysis chamber (4), be equipped with filter core (20) that are used for filtering liquid impurity in filter chamber (5), filter chamber (5) still are equipped with catheter (21), catheter (21) are used for exporting the liquid after filtering in filter chamber (5).

2. The zinc-plated wastewater filtering device according to claim 1, characterized in that: the liquid discharge pipe (11) comprises a large opening portion (111), a small opening portion (113) and a transition portion (112) connected to the large opening portion (111) and the small opening portion (113), the upper end of the large opening portion (111) is arranged in the reaction chamber (2) in a facing mode, the lower end of the small opening portion (113) is arranged in the electrolysis chamber (4) in a facing mode, the diameter of the large opening portion (111) is larger than that of the small opening portion (113), and the diameter of the transition portion (112) is gradually reduced from the large opening portion (111) to the small opening portion (113) in a facing mode.

3. The zinc-plated wastewater filtering device according to claim 1, characterized in that: an anode plate (13) communicated with a power supply anode and a cathode plate (14) communicated with a power supply cathode are arranged in the electrolysis cavity (4);

the utility model discloses an electrolysis cell, including anode plate (13), cathode plate (14), anode plate (13) and cathode plate (14), anode plate (13) with cathode plate (14) all are the level setting, anode plate (13) are located the top of cathode plate (14), anode plate (13) with electrolysis chamber (4) are separated into upper chamber body (41), well cavity (42) and lower cavity (43), anode plate (13) are equipped with anode hole (15) that are arranged in communicating upper chamber body (41) and lower cavity (43), the cathode plate is equipped with cathode hole (16) that are arranged in communicating cavity (42) and lower cavity (43).

4. The zinc-plated wastewater filtering device according to claim 3, characterized in that: the upper end of the cathode plate (14) is provided with a corrugated part (17).

5. The zinc-plated wastewater filtering device according to claim 1, characterized in that: the filter element (20) is provided with a plurality of layers in the filter cavity (5) along the vertical direction.

6. The zinc-plated wastewater filtering device according to claim 1, characterized in that: the material of the filter element (20) is active carbon.

7. The zinc-plated wastewater filtering device according to claim 1, characterized in that: be equipped with filtrate chamber (6) in casing (1), the one end and the filtrate chamber (6) intercommunication of reaction chamber (2) are kept away from in filtrate pipe (22), just filtrate pipe (22) are located the top of reaction chamber (2) cavity in the one end in reaction chamber (2), filtrate pipe (22) are equipped with suction pump (23), suction pump (23) are used for extracting the clear liquid of reaction chamber (2) interior liquid upper end to filtrate chamber (6) through filtrate pipe (22).

8. The zinc-plated wastewater filtering device according to claim 1, characterized in that: casing (1) is equipped with piston hole (8) with stock solution chamber (3) intercommunication, piston hole (8) are located the upper end of stock solution chamber (3), just the axis of piston hole (8) and the coaxial setting of axis of transfer line (7), anticorrosion valve (9) are including wooden stopper one (91) that are used for blockking up piston hole (8), wooden stopper two that are used for blockking up transfer line (7) and wooden pole (93) of connecting wooden stopper one (91) and wooden stopper two (92).

9. The zinc-plated wastewater filtering device according to claim 8, characterized in that: the upper end of the first wooden plug (91) is provided with a lifting ring (94), and the lifting ring (94) is used for lifting the wooden plug upwards to be separated from the piston hole (8).