CN210340429U

CN210340429U - Membrane electrolysis equipment for recycling nitric acid and aluminum nitrate waste liquid

Info

Publication number: CN210340429U
Application number: CN201920267137.1U
Authority: CN
Inventors: 孟庆华
Original assignee: Xinjiang Zhicheng Tongxin Environmental Protection Technology Co ltd
Current assignee: Xinjiang Zhicheng Tongxin Environmental Protection Technology Co ltd
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2020-04-17
Anticipated expiration: 2029-03-01

Abstract

The utility model discloses a membrane electrolysis equipment of recovery processing nitric acid and aluminium nitrate waste liquid, including the iron splint A who installs in proper order, buffering PP board, utmost point membrane, PP baffle, anode plate, n is to utmost point membrane, baffle and plate electrode, utmost point membrane, negative plate, baffle, slow PP board, iron splint B and the dense solution that is connected with iron splint and fresh water inlet tube and outlet pipe, the positive pole conductive copper bar that links to each other with the anode plate, the negative pole conductive copper bar that links to each other with the negative pole, positive pole copper bar and negative pole copper bar link to each other with the positive pole and the negative pole of main power source respectively. The technical scheme that this application provided not only has the effect with acid and salt separation, has acid corrosion resistant, separation voltage low, the characteristics that the processing energy consumption is low moreover, and this equipment assembly is convenient, and is small, can realize automatic control and operation, can solve the effective separation of nitric acid and its salt mixed liquid.

Description

Membrane electrolysis equipment for recycling nitric acid and aluminum nitrate waste liquid

Technical Field

The utility model belongs to the technical field of the sour recovery processing of environmental protection, especially, relate to the membrane electrolysis equipment of recovery processing nitric acid and aluminium nitrate waste liquid.

Background

In the environmental protection field, the recovery treatment of nitric acid and nitrate is always a difficult problem, in order to solve the difficult problem, corresponding equipment meeting the use condition is required to support, the membrane electrolysis equipment is innovatively manufactured through continuous experiments and groping, the manufacture and installation of the membrane electrolysis equipment are original, and the membrane electrolysis equipment is verified through a production line. The parts selected by the device can bear the long-term corrosion and soaking of acid liquor, the manufacturing procedure is few, the device is simple and flexible to assemble, convenient to install, and stronger in detachability and overhauling convenience.

Disclosure of Invention

The utility model discloses aim at overcoming prior art's defect, provide nitric acid and nitrate recovery processing's practicality equipment, organically combine corrosion-resistant material, membrane material and electrode material etc. realize high efficiency, pollution-free, harmless equipment quality target, save process time, improved recovery acid treatment efficiency, also realized the environmental condition that equipment was used simultaneously. The equipment can optimally combine the pipeline material, the polar membrane material and the PP material with the electrode plate, the direct-current power supply and other components to form new equipment capable of meeting acid recovery.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a membrane electrolysis equipment of recovery processing nitric acid and aluminium nitrate waste liquid, includes dense water inlet tube, fresh water inlet tube, dense water outlet pipe, fresh water outlet pipe, iron splint A, buffering PP board, utmost point membrane, PP baffle (join in marriage the water board), negative pole (Ti) board, utmost point membrane, n to utmost point membrane, baffle and plate electrode, positive pole (Ti) board, PP baffle (join in marriage the water board), utmost point membrane, buffering PP board, iron splint B, fastening bolt that connect gradually and constitute. The equipment is used for recycling and treating the nitric acid and aluminum nitrate waste liquid, can effectively separate the nitric acid liquid from the mixture waste liquid consisting of the nitric acid and the aluminum nitrate salt and return the nitric acid liquid to the production line for recycling, and simultaneously separates the aluminum nitrate concentrated liquid to enter the next-stage recycling line for retreatment; the equipment not only has the function of separating acid and salt, but also has the characteristics of acid corrosion resistance, low separation voltage and low treatment energy consumption, is convenient to assemble and small in size, can realize automatic control and operation, and can effectively separate the mixed solution of nitric acid and the salt thereof.

Preferably, the pipeline connected with the equipment comprises a concentrated water inlet pipe, a fresh water inlet pipe, a concentrated water outlet pipe and a fresh water outlet pipe which are all made of polypropylene (PP) materials, so that acid liquor corrosion can be effectively prevented.

Preferably, the iron clamping plates AB at the two ends of the equipment meet the requirements on strength and rigidity, the surfaces of the iron clamping plates are coated with anticorrosive paint, so that the corrosion of acid liquor can be effectively prevented, and all the parts are tightly clamped through fastening bolts to form integrated equipment.

Preferably, the buffering PP plate and the PP partition plate (water distribution plate) are made of polypropylene materials and are detachably connected, and the assembly is convenient and quick.

Preferably, the fastening bolt is formed by processing tool steel, a thermoplastic sleeve is sleeved on the middle section of a screw rod part of the bolt for protection, and the surface of the screw thread and the surface of the nut are prevented from corrosion by applying grease.

Preferably, the anode (Ti) plate and the cathode (Ti) plate both adopt titanium plates as base materials, and corrosion-resistant materials are added to the anode (Ti) plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a practical device for recycling nitric acid and nitrate, which saves the cost for enterprises. Through the installation of this equipment, can effectively separate nitric acid and nitrate material, realize the recovery processing of nitric acid waste liquid, create a large amount of acid recovery values. The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic diagram of the membrane electrolysis equipment for recovering and treating nitric acid and aluminum nitrate waste liquid.

FIG. 2 is a schematic diagram of the membrane electrolysis equipment for recovering and treating nitric acid and aluminum nitrate waste liquid and the power copper bar.

FIG. 3 is a structural diagram of the PP partition board structure of the present invention.

Fig. 4 is a schematic view of the anode plate of the present invention.

Fig. 5 is a schematic view of the cathode plate of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1-5, a membrane electrolysis equipment for recycling nitric acid and aluminum nitrate waste liquid comprises a concentrated water inlet pipe, a fresh water inlet pipe, a concentrated water outlet pipe, a fresh water outlet pipe, an iron clamp plate a, a buffer PP plate, a polar membrane, a PP separator (water distribution plate), a cathode (Ti) plate, a polar membrane, n pairs of polar membranes, a separator and electrode plate, an anode (Ti) plate, a PP separator (water distribution plate), a polar membrane, a buffer PP plate, an iron clamp plate B and fastening bolts which are connected in sequence.

In this application embodiment, dense water inlet pipe, fresh water inlet pipe, dense water outlet pipe, fresh water outlet pipe all adopt PP tubular product, can carry out the plastic welding with buffer board PP board.

In an embodiment of the application, the iron clamp plates A, B are all welded by common carbon steel plates, the plate thickness is 20mm, the drill holes can penetrate through the concentrated water inlet pipe, the fresh water inlet pipe, the concentrated water outlet pipe and the fresh water outlet pipe and then are connected with the buffer PP plate, and the surface of the iron clamp plate A, B is coated with anti-corrosion paint to resist corrosion of acid liquor.

In one embodiment of the application, the buffer PP plate and the PP separator (water distribution plate) are uniformly and orderly clamped into the polar film in the alternating sequence of the polar plates.

In one embodiment of the present application, the cathode (Ti) plates and the anode (Ti) plates are alternately arranged in groups, and the order cannot be reversed.

In one embodiment of the present application, the electrode film material is customized by a professional manufacturer, and is installed between the separator and the cathode and anode plates with light holding and light placing to avoid scraping the surface of the electrode film.

In one embodiment of the present application, the n pairs of electrode films, separators and electrode plates are composed of n electrode films, separators and electrode pairs, the cathode and anode separators are alternately arranged, and the electrode films are sandwiched between the separators to form cathode and anode compartments.

In this application embodiment, fastening bolt adopts the instrument steel processing to form, in order to prevent the corruption of bolt, sheathes the protection of heat plastic sleeve pipe on the unthreaded surface in the screw rod middle section of set bolt, has screw thread and nut surface to adopt the coating grease to carry out anticorrosive, and the final fastening of bolt need be screwed symmetrically in grades.

In an embodiment of the present application, the anode (Ti) plate and the cathode (Ti) plate are connected to an anode and a cathode of a main power supply through a conductive copper bar, and the main power supply is a low voltage dc power supply and is provided by a professional manufacturer.

In an embodiment of the present application, the concentrate inlet pipe, the fresh water inlet pipe, the concentrate outlet pipe, and the fresh water outlet pipe are connected to a circulation pipeline in a subsequent system.

The above description is only for the purpose of illustrating embodiments of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like made by those skilled in the art within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a membrane electrolysis equipment of recovery processing nitric acid and aluminium nitrate waste liquid which characterized in that, includes dense water inlet tube, fresh water inlet tube, dense water outlet pipe, fresh water outlet pipe, iron splint A, buffering PP board, utmost point membrane, PP baffle, negative plate, utmost point membrane, n to utmost point membrane, baffle and plate electrode, anode plate, PP baffle, utmost point membrane, buffering PP board, iron splint B, fastening bolt that connect gradually and constitute.

2. The membrane electrolysis equipment for recycling nitric acid and aluminum nitrate waste liquid according to claim 1, wherein the concentrated water inlet pipe, the fresh water inlet pipe, the concentrated water outlet pipe and the fresh water outlet pipe are all made of PP pipes, and can be welded with a PP plate of a buffer plate in a plastic manner, so that the problems of liquid leakage and corrosion at the joint are avoided.

3. The membrane electrolysis equipment for recycling nitric acid and aluminum nitrate waste liquid according to claim 1, wherein the iron clamping plates A, B are all welded by ordinary carbon steel plates, and the surfaces of the iron clamping plates are coated with anticorrosive paint to resist corrosion of acid liquor.

4. The membrane electrolysis equipment for recovering and treating nitric acid and aluminum nitrate waste liquid according to claim 1, wherein the buffering PP plate and the PP clapboard are both made of polypropylene PP materials.

5. The membrane electrolysis equipment for recycling nitric acid and aluminum nitrate waste liquid according to claim 1, wherein the cathode plate and the anode plate are both customized components for conducting current and forming electrolysis electric field in membrane electrolysis, the substrate is titanium plate, the anode plate is coated according to the use selection so as to meet the requirement of electrolysis corrosion resistance, and the cathode plate and the anode plate are both fixed in the middle of the separator.

6. The membrane electrolysis equipment for recovering and treating nitric acid and aluminum nitrate waste liquid according to claim 1, wherein the polar membrane is made of a separation membrane material with good oxidation resistance, good temperature resistance and nitric acid oxidation resistance.

7. The membrane electrolysis equipment for recycling nitric acid and aluminum nitrate waste liquid according to claim 1, wherein the n pairs of polar membranes, the partition plates and the electrode plates are composed of n pairs of polar membranes, partition plates and electrodes, the cathode and anode partition plates are alternately arranged, and the polar membranes are sandwiched between the partition plates to form cathode and anode compartments.

8. The membrane electrolysis equipment for recycling nitric acid and aluminum nitrate waste liquid according to claim 1, wherein the fastening bolt is made of tool steel, in order to prevent corrosion of the bolt, a thermoplastic sleeve is sleeved on the surface of the unthreaded middle section of the screw rod of the set bolt for protection, and the surface of the threaded nut and the threaded nut are protected by coating grease for corrosion prevention.

9. The membrane electrolysis equipment for recovering and treating nitric acid and aluminum nitrate waste liquid according to claim 1, wherein the anode plate and the cathode plate are connected with a positive electrode and a negative electrode of a main power supply through conductive copper bars, and the main power supply adopts a low-voltage direct-current power supply.

10. The membrane electrolysis equipment for recovering and treating nitric acid and aluminum nitrate waste liquid according to claim 1, wherein a concentrated water inlet pipe, a fresh water inlet pipe, a concentrated water outlet pipe and a fresh water outlet pipe are connected to a circulation pipeline in a subsequent system.