CN210331945U - Surplus acid collecting system is used in lead acid battery production - Google Patents
Surplus acid collecting system is used in lead acid battery production Download PDFInfo
- Publication number
- CN210331945U CN210331945U CN201920699240.3U CN201920699240U CN210331945U CN 210331945 U CN210331945 U CN 210331945U CN 201920699240 U CN201920699240 U CN 201920699240U CN 210331945 U CN210331945 U CN 210331945U
- Authority
- CN
- China
- Prior art keywords
- acid
- pipe
- temporary storage
- cylinder
- lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model discloses a lead acid battery production is with spent acid collecting system, the system includes through pipe connection's acid pumping device, collection jar, precipitation jar and recovery jar, acid pumping device is including vacuum pump, vacuum pressure jar, first acidizing fluid deposition pipe, second acidizing fluid deposition pipe and the acid temporary storage pipe of taking out that loops through pipe connection, still including the acid temporary storage pipe of adding after connecting at first acidizing fluid deposition pipe, all be equipped with vacuum distributor at the top of adding acid temporary storage pipe and taking out acid temporary storage pipe, connect respectively and add the acid machine and take out the acid pipe, all be equipped with the acid discharge pipe of taking the check valve in the bottom of first acidizing fluid deposition pipe, add acid temporary storage pipe, second acidizing fluid deposition pipe and taking out acid temporary storage pipe, the acid discharge pipe is connected with the collection jar. The utility model provides a lead acid battery production is with spent acid collecting system can recycle the spent acid of battery production process, simplifies equipment, and easy operation reduces the cost that the spent acid was handled, improves the spent acid rate of recovery.
Description
Technical Field
The utility model relates to a lead acid battery technical field, in particular to lead acid battery production is with surplus sour collecting system.
Background
Since the invention of the French plena in 1859 years, the lead-acid battery has undergone the development history of nearly 150 years, and is commonly used in the fields of traffic, communication, electric power, military, navigation and the like, and plays a very important role. At present, in the manufacturing process of a lead-acid storage battery, acid needs to be added for formation, particularly, an internal formation mode is adopted, excessive acid needs to be added, a large amount of sulfuric acid is wasted in the process, and the excessive acid needs to be pumped away generally before charging is finished. The existing method is that an acid pumping pipe and an acid cylinder for collecting residual acid are arranged on each chemical formation tank, the residual acid is pumped into the acid cylinder by a vacuum pump and then is periodically discharged into a sewage channel for treatment, the residual acid cannot be recycled, and a large amount of waste acid treatment cost is required. On the other hand, in the production process of the battery, the acid is added through negative pressure, two vacuum pumps are usually arranged in the conventional lead-acid storage battery production line, one vacuum pump is used for adding the acid, and the other vacuum pump is used for extracting the residual acid in the formation process, so that the equipment is complicated and the operation is difficult.
It is seen that improvements and enhancements to the prior art are needed.
SUMMERY OF THE UTILITY MODEL
In view of the weak point of above-mentioned prior art, the utility model aims at providing a lead acid battery production is with surplus sour collecting system, and it is troublesome to aim at solving the recycle of surplus sour among the prior art in the battery production process, and surplus sour processing cost is high, the defect that production facility is numerous and diverse.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a surplus acid collecting system is used in lead acid battery production, includes through the acid pumping device of pipe connection, collects jar, precipitation jar and recovery jar, according to the opposite direction of gas flow, the acid pumping device includes vacuum pump, vacuum pressure tank, first acidizing fluid deposition pipe, second acidizing fluid deposition pipe and the acid pumping temporary storage pipe that loop through the pipe connection, the acid pumping device still includes the acid adding temporary storage pipe of connection behind first acidizing fluid deposition pipe, all is equipped with vacuum distributor at the top of acid adding temporary storage pipe and acid pumping temporary storage pipe, and each vacuum distributor connects the acidification machine respectively and draws the acid pipe, all is equipped with the acid discharge pipe at the bottom of first acidizing fluid deposition pipe, acid adding temporary storage pipe, second acidizing fluid deposition pipe and acid pumping temporary storage pipe, all be equipped with the check valve on the acid discharge pipe to all be connected with the collection jar.
In the residual acid collecting system for the production of the lead-acid storage battery, the temporary acid storage pipe, the second acid liquid deposition pipe and the temporary acid pumping storage pipe are all made of acid corrosion resistant plastics, and a transparent liquid level observation area is arranged on the pipe wall.
In the lead-acid storage battery production used spent acid collection system, a liquid discharge pipe with a one-way valve is arranged at the bottom of the vacuum pressure tank and communicated with a wastewater disposal basin.
In the lead-acid storage battery production residual acid collecting system, the vacuum pump is connected with a circulating cooling water tank, and the circulating cooling water tank is communicated with a waste water ditch through a pipeline with a valve.
In the lead acid battery production is with surplus sour collecting system, the entrance of collecting the jar is equipped with the filter bag.
In the residual acid collecting system for the production of the lead-acid storage battery, a pipeline for communicating the precipitation cylinder with the recovery cylinder is arranged at 2/3 of the cylinder height.
In the lead-acid storage battery production residual acid collecting system, the collecting cylinder, the precipitating cylinder and the recovering cylinder are all provided with pipelines with valves communicated with the waste water ditch.
In the residual acid collecting system for the production of the lead-acid storage battery, the mounting positions of the vacuum pump, the vacuum pressure tank, the first acid liquid deposition pipe, the acid adding temporary storage pipe, the second acid liquid deposition pipe and the acid pumping temporary storage pipe are all higher than the mounting positions of the collecting cylinder, the settling cylinder and the recovery cylinder.
Has the advantages that:
the utility model provides a lead acid battery production is with surplus sour collection system in, can carry out recycle to the battery formation process and the surplus sour in the acidification process, the system only needs to set up a vacuum pump and can accomplish the acidification of the acidification machine of battery and the surplus sour collection in the formation process, has simplified equipment, practices thrift the cost, has improved the utilization ratio of equipment; the residual acid is automatically collected by utilizing the downtime of the vacuum pump, so that the operation is simplified, and the environment is protected and the energy is saved; the system is provided with a plurality of deposition tubes, so that the recovery rate of the acid liquor can be improved, and the pollution of the acid liquor to the environment can be reduced; the filter bag can remove fiber impurities in acid, the precipitation cylinder can further separate impurities in acid, so that the acid liquor is purified, the recovery rate of the acid liquor reaches 90-97%, the recovery rate of the acid liquor is greatly improved, the difficulty and the cost of acid liquor wastewater treatment are reduced, the filter bag is suitable for being popularized in lead-acid storage battery manufacturers, and the filter bag has a high economic value and an environment-friendly effect.
Drawings
Fig. 1 is the utility model provides a lead acid battery production is with spent acid collecting system's schematic structure.
Detailed Description
The utility model provides a lead acid battery production is with surplus sour collecting system, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the following refers to the drawing and the embodiment of lifting the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As used herein, front means the direction of the air flow during vacuum, i.e., the direction of the arrows in FIG. 1, front and back being reversed.
Referring to fig. 1, the utility model provides a lead acid battery production is with surplus sour collection system, including pumping sour device 1, collection jar 2, precipitation jar 3 and recovery jar 4 through the pipe connection. The acid pumping device 1 is higher than the collecting cylinder 2, the precipitating cylinder 3 and the recovering cylinder 4, and is used for pumping out redundant acid liquor in the lead-acid storage battery container formation process. Acid liquor collected by the acid pumping device 1 enters the collecting cylinder 2 under the action of gravity, the collecting cylinder 2 filters the collected acid liquor and then enters the precipitating cylinder 3, the precipitating cylinder 3 is used for precipitating and separating impurities in acid, and supernatant liquid precipitated by the precipitating cylinder 3 enters the recovering cylinder 4 through a pipeline. The acid liquor entering the recovery cylinder is pure and can be recycled. In the specific implementation process, the acid liquid in the recovery cylinder is tested before being recycled, acid adding and blending are carried out according to the test result, the acid is pumped to the blending tank according to the proportion through a pump, and then the acid adding and blending are carried out, so that the recycled acid liquid reaches the standard of the acid liquid for the battery and can be recycled.
In the above structure, the acid pumping device 1 includes a vacuum pump 5, a vacuum pressure tank 6, a first acid liquid deposition pipe 7, a second acid liquid deposition pipe 8, and an acid pumping temporary storage pipe 9, which are connected in sequence through a pipeline, and further includes an acid adding temporary storage pipe 10 connected behind the first acid liquid deposition pipe, in the opposite direction of the gas flow. The top parts of the vacuum pressure tank 6, the first acid liquid deposition pipe 7, the second acid liquid deposition pipe 8, the acid pumping temporary storage pipe 9 and the acid adding temporary storage pipe 10 are respectively provided with an air inlet pipe 11 and an air outlet pipe 12, the air inlet pipes 11 extend into the pipes, the air outlet pipes 12 are flush with the top parts, and the air inlet pipes and the air outlet pipes are communicated through pipelines to form a vacuum passage. Acid discharge pipes 13 are arranged at the bottoms of the first acid liquid deposition pipe 7, the second acid liquid deposition pipe 8, the acid pumping temporary storage pipe 9 and the acid adding temporary storage pipe 10, and are provided with check valves 14 and connected with the collection cylinder 2. And a liquid discharge pipe 15 with a one-way valve is arranged at the bottom of the vacuum pressure tank 6, and the liquid discharge pipe 15 is connected with a wastewater pond. The one-way valve 14 is in a closed state during vacuum pumping, when the vacuum pumping is stopped, the one-way valve can be opened, at the moment, the acid discharge pipe 13 is communicated with the collection cylinder, the liquid in the first acid liquid deposition pipe 7, the second acid liquid deposition pipe 8, the acid pumping temporary storage pipe 9 and the acid adding temporary storage pipe 10 flows into the collection cylinder under the action of gravity, the collection of residual acid is completed, and the liquid in the vacuum pressure tank 6 flows into a wastewater tank through the liquid discharge pipe 15 and is discharged after being neutralized by alkali.
In the above structure, the air inlet pipes 11 disposed at the tops of the acid pumping temporary storage pipe 9 and the acid adding temporary storage pipe 10 are both connected with a vacuum distributor 16, the vacuum distributor can distribute vacuum in the pipes to a plurality of pipelines, the vacuum distributor 16 of the acid pumping temporary storage pipe 9 can be connected with a plurality of acid pumping pipes 17 for pumping out redundant acid liquor in the formation process of a plurality of batteries, and the vacuum distributor 16 of the acid adding temporary storage pipe 10 is connected with a plurality of acid adding machines 18 through pipelines for adding acid to a plurality of batteries simultaneously, and meanwhile, the acid liquor sucked in the acid adding process is collected through the acid adding temporary storage pipe 10. The acid pumping temporary storage pipe and the acid adding temporary storage pipe can temporarily store pumped acid liquor, when the pumping is stopped, the one-way valve 14 of the acid discharge pipe 13 at the bottoms of the acid pumping temporary storage pipe and the acid adding temporary storage pipe is automatically opened, the acid liquor can automatically flow into the collecting cylinder 2, manual control is not needed, and the operation is simple. In the specific implementation process, the vacuum pump 5 is started to vacuumize, and the acid liquor can be pumped away only by extending the acid pumping pipe 17 into the residual acid part of the battery.
The air inlet pipe and the air outlet pipe of the vacuum pressure tank 6 are respectively provided with a second one-way valve 19, the second one-way valve 19 is in an open state during vacuumizing, the vacuum pressure tank 6 is communicated with the vacuum pump 5, the first acid liquid deposition pipe 7, the second acid liquid deposition pipe 8, the acid pumping temporary storage pipe 9 and the acid adding temporary storage pipe 10 to form a vacuumizing passage, the acid pumping can be carried out on the battery in the formation tank and the acid adding treatment can be carried out on the battery in the acid adding machine, when the vacuum pump 5 is closed, the second one-way valve 19 is closed, the vacuumizing passage is cut off, and the acid pumping and the acid adding on the battery are stopped.
In the above structure, the first acid solution deposition tube 7 and the second acid solution deposition tube 8 are used for depositing acid mist, the acid solution pumped by the acid pumping device 1 is easy to form acid mist under a negative pressure state, and by arranging the first acid solution deposition tube 7 and the second acid solution deposition tube 8, the acid mist is attached to the tube wall to form acid solution and flows into the bottom, so that further recovery of the acid solution is completed. On the other hand, the first acid liquid deposition pipe 7 and the second acid liquid deposition pipe 8 also have a buffer function for preventing acid mist from entering the vacuum pressure tank 6 and the vacuum pump 5 under the action of negative pressure.
In the structure, the first acid liquid deposition pipe 7, the second acid liquid deposition pipe 8, the acid pumping temporary storage pipe 9 and the acid adding temporary storage pipe 10 are all plastic pipes with acid corrosion resistance, transparent liquid level observation areas 20 are further arranged on the pipe walls of the acid pumping temporary storage pipe 9, the second acid liquid deposition pipe 8 and the acid adding temporary storage pipe 10, the height of acid liquid in the pipes can be observed in real time through the liquid level observation areas 20, when the height of the acid liquid reaches a limit value, vacuumizing needs to be stopped, then the one-way valve 14 is automatically opened, after the acid liquid in the pipes completely flows into the collection cylinder 2, the vacuum pump 5 is started to continue to pump acid.
In the structure, the vacuum pump 5 is connected with a circulating cooling water tank 21, and the circulating cooling water tank 21 is communicated with a waste water ditch through a pipeline with a valve. The vacuum pump 5 can keep normal working temperature through the cooling of recirculated cooling water, carries out continuous work, when recirculated cooling water temperature is higher than 40 ℃, need open the valve and trade water treatment.
In the above structure, the entrance of collecting jar 2 is equipped with filter bag 22 for filter AGM fibre or other impurity in the spent acid, filter bag is acid corrosion resistant pocket, and in the concrete implementation process, must clear up or change filter bag after filtering a period.
In the above structure, the pipe for communicating the settling tank and the recovery tank is provided at 2/3. When the collected acid liquor enters the precipitation tank, the acid liquor is subjected to static precipitation to form supernatant, and when the liquid level reaches 2/3 of the tank height, the supernatant can flow into the recovery tank, so that the acid liquor entering the recovery tank is relatively clear acid liquor. The recovery cylinder is further connected with a liquid pump 23, the liquid pump 23 is a pump capable of measuring flow, the liquid pump 23 is communicated with an acid preparation tank, acid liquid in the recovery cylinder 4 is pumped to the acid preparation tank according to the required acid amount, and the acid liquid can reach the standard of acid for a lead-acid storage battery through adjustment in the acid preparation tank, so that the acid liquid can be recycled. The verification proves that the recovery rate of the residual acid can reach 90-97%.
Specifically, the collecting cylinder 2, the settling cylinder 3 and the recovery cylinder 4 are all provided with pipelines with valves communicated with the wastewater ditch. After the collecting cylinder 2, the precipitating cylinder 3 and the recovering cylinder 4 are used for a period of time, the interior of the cylinder is required to be cleaned, a valve communicated with a wastewater pool is opened at the moment, residual acid liquid in the cylinder is removed and cleaned, and wastewater in the wastewater pool can be discharged after being neutralized by alkali liquor.
The specific implementation process is as follows:
the vacuum pump 5 is started to vacuumize, the one-way valves 19 of the air inlet and the air outlet of the vacuum pressure tank 6 are opened, the one-way valve 14 on the liquid discharge pipe at the bottom of the vacuum pressure tank 6 and the one-way valve 14 on the first acid liquid deposition pipe 7, the second acid liquid deposition pipe 8, the temporary acid pumping storage pipe 9 and the one-way valve 14 on the acid discharge pipe 13 of the temporary acid adding storage pipe 10 are closed, the vacuum pump 5, the vacuum pressure tank 6, the first acid liquid deposition pipe 7, the second acid liquid deposition pipe 8, the temporary acid pumping storage pipe 9 and the temporary acid adding storage pipe 10 form a passage, at the moment, the battery in the formation tank can be pumped by the acid pumping pipe 17, meanwhile, the acid adding machine 18 can also add acid to the battery, and the pumped acid is stored in the temporary acid pumping storage pipe 9, the temporary acid adding storage pipe 10, the first acid liquid deposition pipe 7 and the second acid liquid deposition pipe 8 in the processes of acid pumping and acid.
When the acid pumping is finished, the vacuum pump 5 is closed, the one-way valves 19 of the air inlet and the air outlet of the vacuum pressure tank 6 are closed, the one-way valve 14 on the liquid discharge pipe 15 at the bottom of the vacuum pressure tank 6 and the one-way valve 14 on the acid discharge pipe 13 of the first acid liquid deposition pipe 7, the second acid liquid deposition pipe 8, the temporary acid pumping storage pipe 9 and the temporary acid adding storage pipe 10 are opened, the acid liquid in the first acid liquid deposition pipe 7, the second acid liquid deposition pipe 8, the temporary acid pumping storage pipe 9 and the temporary acid adding storage pipe 10 flows into the collection tank 2 through the acid discharge pipe 13, the acid liquid is filtered through the filter bag 22 in the collection tank 2 to remove partial impurities and AGM fibers, the acid liquid entering the collection tank 2 flows into the deposition tank 3 through a pipeline, the deposition tank 3 performs standing precipitation on the acid liquid to form a supernatant on the upper part of the acid liquid, the supernatant liquid flows into the recovery tank 4 when the supernatant liquid reaches 2/3, and the concentration and the purity of, the acid liquor can be prepared for recycling.
It is understood that equivalents and changes may be made to the technical solution of the present invention and its concept by those skilled in the art, and all such changes and substitutions shall fall within the scope of the appended claims.
Claims (8)
1. The residual acid collecting system for the production of the lead-acid storage battery is characterized by comprising an acid pumping device, a collecting cylinder, a settling cylinder and a recycling cylinder which are connected through pipelines, wherein the acid pumping device comprises a vacuum pump, a vacuum pressure tank, a first acid liquid deposition pipe, a second acid liquid deposition pipe and an acid pumping temporary storage pipe which are sequentially connected through pipelines according to the direction opposite to the gas flow, the acid pumping device further comprises an acid adding temporary storage pipe connected behind the first acid liquid deposition pipe, vacuum distributors are arranged at the tops of the acid adding temporary storage pipe and the acid pumping temporary storage pipe and are respectively connected with an acid adding machine and an acid pumping pipe, acid discharging pipes are arranged at the bottoms of the first acid liquid deposition pipe, the acid adding temporary storage pipe, the second acid liquid deposition pipe and the acid pumping temporary storage pipe, and are respectively provided with a one-way valve and are connected with the collecting cylinder.
2. The system for collecting the residual acid for the production of the lead-acid storage battery as claimed in claim 1, wherein the temporary storage tube for added acid, the second acid liquid deposition tube and the temporary storage tube for extracted acid are all made of acid corrosion resistant plastics, and a transparent liquid level observation area is arranged on the tube wall.
3. The residual acid collecting system for the production of the lead-acid storage battery as claimed in claim 1, wherein a drain pipe with a one-way valve is arranged at the bottom of the vacuum pressure tank, and the drain pipe is communicated with a wastewater pool.
4. The residual acid collecting system for the production of the lead-acid storage battery of claim 1, wherein the vacuum pump is connected with a circulating cooling water cylinder, and the circulating cooling water cylinder is communicated with the wastewater ditch through a pipeline with a valve.
5. The residual acid collecting system for lead-acid battery production according to claim 1, wherein a filter bag is provided at the inlet of the collecting cylinder.
6. The residual acid collecting system for lead-acid battery production according to claim 1, wherein the pipeline for communicating the precipitation tank with the recovery tank is arranged at 2/3 of the tank height.
7. The residual acid collecting system for the production of the lead-acid storage battery as claimed in claim 1, wherein the collecting tank, the settling tank and the recovery tank are provided with pipelines with valves communicated with the waste water ditch.
8. The residual acid collecting system for the production of the lead-acid storage battery as claimed in claim 1, wherein the vacuum pump, the vacuum pressure tank, the first acid liquid deposition pipe, the acid adding temporary storage pipe, the second acid liquid deposition pipe and the acid pumping temporary storage pipe are all arranged at positions higher than those of the collecting cylinder, the settling cylinder and the recovery cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920699240.3U CN210331945U (en) | 2019-05-15 | 2019-05-15 | Surplus acid collecting system is used in lead acid battery production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920699240.3U CN210331945U (en) | 2019-05-15 | 2019-05-15 | Surplus acid collecting system is used in lead acid battery production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210331945U true CN210331945U (en) | 2020-04-17 |
Family
ID=70182125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920699240.3U Expired - Fee Related CN210331945U (en) | 2019-05-15 | 2019-05-15 | Surplus acid collecting system is used in lead acid battery production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210331945U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111991913A (en) * | 2020-07-14 | 2020-11-27 | 界首市南都华宇电源有限公司 | Surplus acid collecting system is used in lead acid battery production |
| CN112952306A (en) * | 2021-03-11 | 2021-06-11 | 浙江南都电源动力股份有限公司 | Quantitative acid adding system and acid adding process without using quantitative acid adding machine |
| CN114427994A (en) * | 2020-09-16 | 2022-05-03 | 中国石油化工股份有限公司 | Acid liquor removing device and method for kerogen preparation |
| CN115353079A (en) * | 2022-08-10 | 2022-11-18 | 风帆有限责任公司 | Lead-acid battery acid liquor recycling system and method |
-
2019
- 2019-05-15 CN CN201920699240.3U patent/CN210331945U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111991913A (en) * | 2020-07-14 | 2020-11-27 | 界首市南都华宇电源有限公司 | Surplus acid collecting system is used in lead acid battery production |
| CN114427994A (en) * | 2020-09-16 | 2022-05-03 | 中国石油化工股份有限公司 | Acid liquor removing device and method for kerogen preparation |
| CN112952306A (en) * | 2021-03-11 | 2021-06-11 | 浙江南都电源动力股份有限公司 | Quantitative acid adding system and acid adding process without using quantitative acid adding machine |
| CN115353079A (en) * | 2022-08-10 | 2022-11-18 | 风帆有限责任公司 | Lead-acid battery acid liquor recycling system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210331945U (en) | Surplus acid collecting system is used in lead acid battery production | |
| CN103771605A (en) | Onboard micro-filtration algae removal system and algae removal method | |
| CN102299393A (en) | Lead acid storage cell pole plate formation workshop acid liquid recovering system | |
| CN103066238A (en) | High-efficiency acid discharge system of storage battery | |
| CN104492339A (en) | Etchant preparation system | |
| CN105712545B (en) | A kind of copper-containing wastewater recovery and processing system | |
| CN106630226A (en) | Plumbic acid storage battery waste acid recovering system and residual liquid treatment method | |
| CN101333211B (en) | Recovery device of lipoic acid water solution | |
| CN203826474U (en) | Acid extracting device | |
| CN211350899U (en) | Waste lithium battery discharging device | |
| CN104276739B (en) | A kind of reinforcement sludge gravity concentration realize device and method | |
| CN202217749U (en) | Acid liquor recycling system of lead-acid storage battery polar plate formation workshop | |
| CN203493530U (en) | Portable shower set | |
| CN210186601U (en) | Waste lead-acid battery electrolyte treatment device | |
| CN108928948B (en) | Filter cleaning system | |
| CN112759117A (en) | Waste acid is aluminum ion recovery plant for processing | |
| CN206911071U (en) | A kind of NHD solution recovery systems | |
| CN201193517Y (en) | Dirty oil and water collecting and reinjecting device | |
| CN211288278U (en) | Liquid-proof sealing device for water jet vacuum pump | |
| CN206915956U (en) | A kind of reclaimed water recycling system apparatus | |
| CN201163020Y (en) | Water storage tank of closed circulating phase-change heat distribution system of industrial boiler | |
| CN110171895A (en) | A kind of waste acidity recovery processing unit | |
| CN104529003A (en) | Waste acid regeneration device | |
| CN203277595U (en) | Acid liquor filtering and recycling device | |
| CN205055616U (en) | Diluted acid purifies recovery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200417 Termination date: 20210515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |