CN212476914U

CN212476914U - Automatic pickling complete recovery device for electrolytic cell

Info

Publication number: CN212476914U
Application number: CN202021058584.5U
Authority: CN
Inventors: 黄招扬
Original assignee: Fujian Zhengkang Intelligent Technology Co ltd
Current assignee: Fujian Zhengkang Intelligent Technology Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-02-05
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses an automatic pickling of electrolysis trough is recovery unit completely, including acid pump, sour bucket and electrolysis trough, the acid pump passes through communicating pipe and realizes and sour bucket fluid intercommunication, the electrolysis trough respectively with pickling and feed liquor diverter valve and blowoff valve fluid intercommunication through first three-way pipe, the acid pump can realize through the pickling pipe with pickling and feed liquor diverter valve fluid intercommunication, first drain pipe is installed through the loose joint end cap to the electrolysis trough, and first drain pipe is through going out liquid and returning acid diverter valve respectively with second returning acid pipe and second outlet pipe fluid intercommunication, and second returning acid pipe realizes through the bi-pass end cap with first returning acid pipe fluid intercommunication, and first returning acid pipe pegs graft on sour bucket, realizes and sour bucket fluid intercommunication. The utility model discloses under the condition that does not change whole pickling principle, only through the mounting height who changes sour bucket and electrolysis trough, through the difference in height that utilizes to form between electrolysis trough and the sour bucket, just so can utilize liquid autogenous pressure to realize complete recycle acid.

Description

Automatic pickling complete recovery device for electrolytic cell

Technical Field

The utility model relates to the technical field of pickling complete recovery, in particular to an automatic pickling complete recovery device for an electrolytic cell.

Background

In the existing automatic acid cleaning equipment for the electrolytic cell, the residual acid in the electrolytic cell after the automatic acid cleaning is finished is solved.

Two treatment methods are common: one is to directly discharge the acid remained in the electrolytic cell through a drain valve after the automatic acid cleaning is finished. And the other method is that after the automatic acid cleaning is finished, tap water is filled into the electrolytic cell to flush the acid remained in the electrolytic cell back to the acid bucket through an acid return pipeline, and after the acid bucket is full, the acid remained in the electrolytic cell is discharged through a drain valve, so that part of the acid can be recovered.

The above two methods are directed to the treatment of the acid remaining in the electrolytic cell, and the first method causes a large amount of acid to be wasted. In the second method, although a part of the acid is recovered, a part of water is added into the acid tank, so that the acid concentration in the acid tank is reduced to influence the pickling effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic pickling complete recovery unit of electrolysis trough, solved the technical problem that the background art provided.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an automatic pickling of electrolysis trough is recovery unit completely, includes acid pump, acid vat and electrolysis trough, the acid pump passes through communicating pipe and realizes and acid vat fluid intercommunication, the electrolysis trough respectively with pickling and feed liquor diverter valve and blowoff valve fluid intercommunication through first three-way pipe, the acid pump can realize with pickling and feed liquor diverter valve fluid intercommunication through the pickling pipe, first drain pipe is installed through the loose joint end cap to the electrolysis trough, and first drain pipe is through going out liquid and acid return diverter valve respectively with second acid return pipe and second liquid outlet pipe fluid intercommunication, second acid return pipe through two-way end cap realize with first acid return pipe fluid intercommunication, and first acid return pipe pegs graft on the acid vat, realizes with acid vat fluid intercommunication.

Preferably, the joint of the acid barrel, the acid pump and the communicating pipe is sealed and bonded through the matching of PVC glue and a sealing ring.

Preferably, the connection parts of the electrolytic cell, the pickling and liquid inlet switching valve and the blow-down valve and the first three-way pipe are in sealing adhesion through the matching of PVC glue and a sealing ring.

Preferably, install the blow off pipe on the blowoff valve, and the blow off pipe outward appearance is the design of L type, install the feed liquor pipe on pickling and the feed liquor diverter valve.

Preferably, the pickling and liquid inlet switching valve and the acid pump are matched with each other through PVC glue and a sealing ring at the joint of the pickling pipe to realize sealing and bonding.

Preferably, the second acid return pipe, the first liquid outlet pipe and the second liquid outlet pipe are sealed and fixed at the joint of the liquid outlet and the acid return switching valve through loose joint plugs.

Preferably, the second acid return pipe and the first acid return pipe are fixedly bonded at the two-way plug through PVC glue, and the joint of the first acid return pipe and the acid bucket is hermetically bonded through PVC glue and a sealing ring in a matching manner.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses under the condition that does not change whole pickling principle, only through the mounting height who changes sour bucket and electrolysis trough, through the difference in height that utilizes to form between electrolysis trough and the sour bucket, just so can utilize liquid autogenous pressure to realize complete recycle acid.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. an acid pump; 2. a communicating pipe; 3. an acid bucket; 4. a liquid inlet pipe; 5. pickling the tube; 6. an acid washing and liquid feeding switching valve; 7. a blow-off pipe; 8. a first acid return pipe; 9. a second acid return pipe; 10. a first three-way pipe; 11. a blowoff valve; 12. an electrolytic cell; 13. a first liquid outlet pipe; 14. liquid outlet and acid return switching valves; 15. a second liquid outlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the utility model provides a technical solution of an automatic pickling complete recovery device for an electrolytic cell: the utility model provides an automatic pickling of electrolysis trough is recovery unit entirely, including acid pump 1, acid vat 3 and electrolysis trough 12, acid pump 1 realizes through communicating pipe 2 with acid vat 3 fluid intercommunication, electrolysis trough 12 is respectively with pickling and feed liquor diverter valve 6 and blowoff valve 11 fluid intercommunication through first three-way pipe 10, acid pump 1 can realize with pickling and feed liquor diverter valve 6 fluid intercommunication through acid wash pipe 5, electrolysis trough 12 installs first drain pipe 13 through the loose joint end cap, first drain pipe 13 is respectively with second acid return pipe 9 and second drain pipe 15 fluid intercommunication through going out liquid and acid return diverter valve 14, second acid return pipe 9 realizes through two-way end cap with first acid return pipe 8 fluid intercommunication, and first acid return pipe 8 pegs graft on acid vat 3, realize with acid vat 3 fluid intercommunication.

The communicating pipe 2, the liquid inlet pipe 4, the pickling pipe 5, the blow-off pipe 7, the first pickling pipe 8, the second pickling pipe 9, the first three-way pipe 10, the first liquid outlet pipe 13 and the second liquid outlet pipe 15 of the utility model are made of UPVC pipelines (UPVC materials used for connecting each part and conveying acid liquor); the acid bucket 3 is made of PE material and is used for storing and preparing citric acid with the concentration of 10% or hydrochloric acid with the concentration of 6%; the pump head PTFE material of the acid pump 1 is used for pumping acid in an acid bucket into the electrolytic bath 12 during acid cleaning and then returning to the acid bucket 3 to realize the effect of continuous circular acid cleaning; the pickling and liquid inlet switching valve 6 is electrically controlled to be switched to a pickling state automatically under the control of a PLC (programmable logic controller) during pickling, the pickling and liquid inlet switching valve is kept in the pickling state after an acid pump is stopped during the cycle pickling timing, and the acid liquor remained in the electrolytic bath 12 is slowly and completely pressed into the acid bucket through a self-pressure mode, so that the complete recovery of the acid is realized, and the acid is automatically recovered to the liquid inlet state after the acid return is finished; the electrolytic tank 12 is made of UPVC material, the main place for producing electrolysis, the acid cleaning is mainly to clean the electrolytic tank by dissolving the scale in the electrolytic tank 12 by acid aiming at the scale generated by the electrolysis of the electrolytic tank 12 for a long time, thereby removing the scale, ensuring the output of the electrolytic tank not to be influenced and ensuring the service life of the electrode in the electrolytic tank 12; the liquid outlet and acid return switching valve 14 is a PVC interface, is electrically controlled to switch, is automatically switched to an acid return state through PLC control during acid washing, and automatically returns to a liquid outlet state after the acid washing is finished; the blowoff valve 11 is a PVC interface, is electrically controlled to switch, is automatically opened to empty the electrolytic cell under the control of a PLC before pickling, and is then automatically closed; the PLC is a programmable controller and is used for controlling the pickling process.

The joint of the acid barrel 3 and the acid pump 1 with the communicating pipe 2 is sealed and bonded by matching PVC glue and a sealing ring; the connection parts of the electrolytic tank 12, the pickling and liquid inlet switching valve 6 and the blow-down valve 11 and the first three-way pipe 10 are in sealing adhesion through the matching of PVC glue and a sealing ring; a drain pipe 7 is arranged on the drain valve 11, the appearance of the drain pipe 7 is in an L-shaped design, and a liquid inlet pipe 4 is arranged on the pickling and liquid inlet switching valve 6; the pickling and liquid inlet switching valve 6 and the acid pump 1 are matched with each other through PVC glue and a sealing ring at the joint of the pickling pipe 5 to realize sealing and bonding; the second acid return pipe 9, the first liquid outlet pipe 13 and the second liquid outlet pipe 15 are sealed and fixed at the joint of the liquid outlet and the acid return switching valve 14 through loose joint plugs; the second acid return pipe 9 and the first acid return pipe 8 are fixedly bonded at the double-way plug through PVC glue, and the joint of the first acid return pipe 8 and the acid bucket 3 is hermetically bonded through PVC glue and a sealing ring in a matching manner.

The acid barrel 3, the acid pump 1, the acid washing and liquid inlet switching valve 6, the electrolytic tank 12, the liquid outlet and acid return switching valve 14 and the blow-off valve 11 are all connected through UPVC pipelines to form an integral circulating acid washing and complete acid return system; the PLC controls the actions of the acid pump 1, the acid washing and liquid inlet switching valve 6, the liquid outlet and acid return switching valve 14, the blow-down valve 11 and other components through a control line to realize the automatic acid washing and complete recovery of the whole electrolytic tank 12.

The working principle is as follows: the acid bucket 3 is made of PE material and is used for storing and preparing citric acid with the concentration of 10% or hydrochloric acid with the concentration of 6%; the pump head PTFE material of the acid pump 1 is used for pumping acid in an acid bucket into the electrolytic bath 12 during acid cleaning and then returning to the acid bucket 3 to realize the effect of continuous circular acid cleaning; the pickling and liquid inlet switching valve 6 is a PVC interface and is electrically controlled to switch, the pickling and liquid inlet switching valve is automatically switched to a pickling state under the control of a PLC (programmable logic controller) during pickling, the pickling and liquid inlet switching valve is kept in the pickling state after an acid pump is stopped after the cycle pickling is timed, and the acid liquid remained in the electrolytic bath 12 is slowly and completely pressed into the acid bucket through a self-pressure mode, so that the complete recovery of the acid is realized, and the acid is automatically recovered to the liquid inlet state after the acid return is completed; the electrolytic tank 12 is made of UPVC material, the main place for producing electrolysis, the acid cleaning is mainly to clean the electrolytic tank by dissolving the scale in the electrolytic tank 12 by acid aiming at the scale generated by the electrolysis of the electrolytic tank 12 for a long time, thereby removing the scale, ensuring the output of the electrolytic tank not to be influenced and ensuring the service life of the electrode in the electrolytic tank 12; the liquid outlet and acid return switching valve 14 is a PVC interface, is electrically controlled to switch, is automatically switched to an acid return state through PLC control during acid washing, and automatically returns to a liquid outlet state after the acid washing is finished; the blowoff valve 11 is a PVC interface, is electrically controlled to switch, is automatically opened to empty the electrolytic cell under the control of a PLC before pickling, and is then automatically closed; the PLC is a programmable controller and is used for controlling the pickling process.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a complete recovery unit of automatic pickling of electrolysis trough, includes acid pump (1), acid bucket (3) and electrolysis trough (12), its characterized in that: acid pump (1) is realized through communicating pipe (2) and is linked together with acid vat (3) fluid intercommunication, electrolysis trough (12) are through first three-way pipe (10) respectively with pickling and feed liquor diverter valve (6) and blowoff valve (11) fluid intercommunication, acid pump (1) can realize through acid washing pipe (5) with pickling and feed liquor diverter valve (6) fluid intercommunication, first drain pipe (13) are installed through the loose joint end cap in electrolysis trough (12), first drain pipe (13) are through going out liquid and return acid diverter valve (14) respectively with second return acid pipe (9) and second drain pipe (15) fluid intercommunication, second return acid pipe (9) are through the bi-pass end cap realize with first return acid pipe (8) fluid intercommunication, and first return acid pipe (8) are pegged graft on acid vat (3), realize with acid vat (3) fluid intercommunication.

2. The automatic acid washing complete recovery device for the electrolytic cell according to claim 1, characterized in that: the joint of the acid barrel (3) and the acid pump (1) with the communicating pipe (2) is sealed and bonded through the matching of PVC glue and a sealing ring.

3. The automatic acid washing complete recovery device for the electrolytic cell according to claim 1, characterized in that: the electrolytic tank (12), the pickling and liquid inlet switching valve (6) and the sewage valve (11) are in sealing bonding with the joint of the first three-way pipe (10) through the matching of PVC glue and a sealing ring.

4. The automatic acid washing complete recovery device for the electrolytic cell according to claim 1, characterized in that: install blow off pipe (7) on blowoff valve (11), and blow off pipe (7) outward appearance is L type design, install feed liquor pipe (4) on pickling and the feed liquor diverter valve (6).

5. The automatic acid washing complete recovery device for the electrolytic cell according to claim 1, characterized in that: the pickling and liquid inlet switching valve (6) and the acid pump (1) are matched with each other through PVC glue and a sealing ring to realize sealing and bonding at the joint of the pickling pipe (5).

6. The automatic acid washing complete recovery device for the electrolytic cell according to claim 1, characterized in that: the second acid return pipe (9), the first liquid outlet pipe (13) and the second liquid outlet pipe (15) are sealed and fixed at the joint of the liquid outlet and the acid return switching valve (14) through loose joint plugs.

7. The automatic acid washing complete recovery device for the electrolytic cell according to claim 1, characterized in that: the second acid return pipe (9) and the first acid return pipe (8) are fixedly bonded at the bi-pass plug through PVC glue, and the joint of the first acid return pipe (8) and the acid bucket (3) is hermetically bonded through the cooperation of the PVC glue and the sealing ring.