CN111235586A - Low acid consumption environment-friendly pickling acid mist pumping and discharging system - Google Patents
Low acid consumption environment-friendly pickling acid mist pumping and discharging system Download PDFInfo
- Publication number
- CN111235586A CN111235586A CN202010128793.0A CN202010128793A CN111235586A CN 111235586 A CN111235586 A CN 111235586A CN 202010128793 A CN202010128793 A CN 202010128793A CN 111235586 A CN111235586 A CN 111235586A
- Authority
- CN
- China
- Prior art keywords
- acid
- acid mist
- pumping
- pipeline
- water seal
- 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.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/36—Regeneration of waste pickling liquors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a low-acid-consumption environment-friendly pickling acid mist pumping and discharging system which comprises a pickling tank and a tank cover, wherein a water seal groove is formed in the top of the outer wall of the pickling tank, the lower edge of the tank cover is arranged in the water seal groove, the system also comprises an overflow pipeline, a backflow pipeline and a desalted water pipeline used for conveying desalted water into the water seal groove, an overflow port is formed in the water seal groove, the upper end of the overflow pipeline is communicated with the overflow port, and the lower end of the overflow pipeline is communicated with the pickling tank or an acid inlet pipeline of the pickling tank through the backflow pipeline. It can effectively reduce the waste and environmental protection problems caused by the volatilization of the hydrochloric acid.
Description
Technical Field
The invention relates to the technical field of acid washing, in particular to a low-acid-consumption environment-friendly acid-washing acid mist pumping and discharging system.
Background
The surface of the hot-rolled strip as a base material for cold rolling inevitably has scale, and appropriate measures must be taken to remove the scale on the surface of the strip before cold rolling. At present, the most common technique in China is a turbulent flow push-pull type hydrochloric acid pickling technique combining physical and chemical modes, which has the characteristics of high efficiency and energy saving, but because acid liquor is in a turbulent flow state at higher temperature, the acid mist quantity greatly increases the leakage risk.
For example, the application of a steel strip rust-removing and acid-washing line disclosed in the Chinese patent 2013205907586 relates to a steel strip rust-removing and acid-washing line comprising an acid-washing tank, a clear water tank, an acid mist absorption tower, a stone roller tank cover and a water seal groove device, and the application can only reduce the environmental protection problem caused by the leakage of acid mist into the air and can not solve the problem of acid washing waste caused by the volatilization of acid liquid into the groove.
For example, Chinese patent CN 202047135U-an environment-friendly turbulent pickling tank sealing cover discloses an environment-friendly turbulent pickling tank sealing cover with high mechanical strength, built-in balance air bag and remarkable energy-saving effect; for example, the Chinese patent CN 205295473U-an acid tank cover for a pickling tank discloses an acid tank cover which can lead the hydrochloric acid volatilized from the acid tank cover to flow back to the pickling tank and reduce the loss of the hydrochloric acid; the two patent technical schemes can not completely solve the environmental protection problem caused by the leakage of acid mist.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a low-acid-consumption environment-friendly acid-washing acid mist pumping and discharging system which can effectively reduce the waste and environmental protection problems caused by volatilization of hydrochloric acid.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
this low acid consumption environment-friendly pickling acid mist pump drainage system, including descaling bath and capping, the outer wall top of descaling bath is equipped with the water seal recess, the lower limb of capping is established in the water seal recess, still includes overflow pipeline and backflow pipeline and is arranged in carrying the demineralized water pipeline to the water seal recess in, be equipped with the overflow mouth on the water seal recess, the upper end and the overflow mouth of overflow pipeline are linked together, and the lower extreme of overflow pipeline is linked together through backflow pipeline and descaling bath or the acid inlet pipeline with the descaling bath.
Further, still include acid mist pump drainage pipeline, acid mist condenser and acid mist scrubbing tower, be equipped with acid mist pump drainage mouth on the capping, the one end and the acid mist pump drainage mouth of acid mist pump drainage pipeline link to each other, and the other end of acid mist pump drainage pipeline links to each other with acid mist condenser and acid mist scrubbing tower in proper order.
The top surface of capping is the arc structure, is equipped with the strengthening rib on the arc top surface of capping, is equipped with the hole for hoist on the strengthening rib.
And acid-resistant rubber is arranged on the inner surface of the water seal groove.
One side of the bottom of the groove of the water seal groove, which is close to the acid groove, is a horizontal groove bottom.
One side of the bottom of the water seal groove, which is far away from the acid tank, is of a slope structure, and an overflow port is arranged on the slope structure; or one side of the bottom of the water seal groove close to the acid groove is a horizontal groove, the other side of the bottom of the water seal groove is a chute, and the overflow port is arranged at the lower part of the chute.
And two opposite sides of the top of the groove cover are respectively provided with an acid mist pumping and discharging port, and the acid mist pumping and discharging ports are connected with acid mist pumping and discharging pipelines on the corresponding sides.
The acid mist washing tower is characterized by further comprising a pumping and draining pipeline and a pumping and draining fan which are connected, the pumping and draining pipeline is connected with the other end of the acid mist pumping and draining pipeline, the pumping and draining pipeline is sequentially connected with the acid mist condenser and the acid mist washing tower through pipelines, and a liquid outlet of the acid mist washing tower is connected with the waste water collecting structure.
And an alkali liquor adder is arranged between the liquid outlet of the acid mist washing tower and the wastewater collecting structure.
And a PH detector is arranged between the liquid outlet of the acid mist washing tower and the wastewater collecting structure.
Compared with the prior art, the invention has the following advantages:
1. the sealing water in the water seal groove is always in a slow overflow state, so that the environmental protection problem that the sealing water is excessively acidified to pollute the environment is avoided, the concentration of the overflow is stable and controllable and is equivalent to that of the acid tank, and the overflow directly flows back to the acid tank through the acid inlet pipeline, so that the acid consumption is reduced;
2. the pumping and drainage system which is always in a negative pressure state is driven by the variable frequency motor, on one hand, the acid mist is not leaked to meet the requirement of environmental protection, and on the other hand, the motor can automatically adjust the frequency according to the pumping and drainage pressure to meet the requirement of energy saving;
3. the acid mist condenser on the pump drainage pipeline ensures that the acid mist is directly condensed back to the acid tank, thereby improving the utilization rate of the acid liquor and greatly reducing the acid consumption;
4. the PH value of alkali lye adder and PH detector coordinated control escape canal department for the environmental protection is discharged up to standard, avoids causing the pollution to the environment.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic diagram of the system of the present invention.
In the figure:
1. the device comprises a pickling tank, 2-1 parts of a tank cover body, 2-2 parts of a lifting lug, 2-3 parts of an acid mist pumping and discharging pipeline, 3-1 parts of a tank cover placing platform, 3-2 parts of a water seal groove, 3-3 parts of an overflow pipeline, 3-4 parts of a backflow pipeline, 4 parts of a pumping and discharging pipeline, 5 parts of a pumping and discharging fan, 6 parts of an acid mist condenser, 7 parts of an acid mist washing tower, 8 parts of an alkali liquor adder and 9 parts of a PH detector.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1, the low-acid consumption environment-friendly turbulent flow push-pull type acid mist acid pickling pumping and draining system comprises a pickling tank 1, a tank cover, an overflow pipeline 3-3, a return pipeline 3-4, a pumping and draining pipeline 4, a pumping and draining fan 5, an acid mist condenser 6, an acid mist washing tower 7, an alkali liquid adder 8, a PH detector 9 and a desalted water pipeline for conveying desalted water to a water seal groove; the lower edge of the groove cover is arranged in the water seal groove.
The top of the outer wall of the pickling tank 1 is provided with a water seal groove 3-2, the water seal groove is provided with an overflow port, the upper end of an overflow pipeline 3-3 is communicated with the overflow port, and the lower end of the overflow pipeline is communicated with the pickling tank or an acid inlet pipeline of the pickling tank through a return pipeline 3-4. The sealing water in the water seal groove is always in a slow overflow state, the environmental protection problem that the sealing water is excessively acidified to pollute the environment is avoided, the concentration of the overflow is stable and controllable and is equivalent to that of the acid tank, and the overflow directly flows back to the acid tank through the acid inlet pipeline, so that the acid consumption is reduced.
An acid mist pumping and discharging port is arranged on the groove cover body 2-1, one end of an acid mist pumping and discharging pipeline 2-3 is connected with the acid mist pumping and discharging port, and the other end of the acid mist pumping and discharging pipeline is sequentially connected with an acid mist condenser and an acid mist washing tower. The two opposite sides of the top of the groove cover are respectively provided with an acid mist pumping and discharging port, the acid mist pumping and discharging ports are connected with the acid mist pumping and discharging pipelines on the corresponding sides, and the acid mist pumping and discharging processing structures on the corresponding two sides are the same.
The top surface of the groove cover body 2-1 is of an arc-shaped structure, reinforcing ribs are arranged on the arc-shaped top surface of the groove cover, hoisting holes are formed in the reinforcing ribs, the stable and reliable lifting lugs 2-2 are formed, and the structure is reliable.
Acid-resistant rubber is arranged on the inner surface of the water seal groove. One side of the bottom of the groove of the water seal groove, which is close to the acid groove, is a horizontal groove bottom, and the groove cover is stably placed.
One side of the bottom of the groove of the water seal groove, which is far away from the acid tank, is of a slope structure, and the overflow port is arranged on the slope structure; or one side of the bottom of the water seal groove close to the acid groove is a horizontal groove, the other side of the bottom of the water seal groove is a chute, and the overflow port is arranged at the lower part of the chute.
The pumping and draining pipeline 4 is connected with the pumping and draining fan 5, the pumping and draining pipeline is connected with the other end of the acid mist pumping and draining pipeline, the pumping and draining pipeline is sequentially connected with the acid mist condenser and the acid mist washing tower through pipelines, and a liquid outlet of the acid mist washing tower is connected with the wastewater collecting structure. The pumping and draining system which is always in a negative pressure state is driven by the variable frequency motor, on one hand, the acid mist does not leak to meet the requirement of environmental protection, and on the other hand, the motor can automatically adjust the frequency according to the pumping and draining pressure to meet the requirement of energy saving. The acid mist condenser on the pump drainage pipeline makes the acid mist directly condensed back to the acid tank, thus improving the utilization rate of the acid liquor and greatly reducing the acid consumption.
An alkali liquor adder and a PH detector are arranged between the liquid outlet of the acid mist washing tower and the wastewater collecting structure. The PH value of alkali lye adder and PH detector coordinated control escape canal department for the environmental protection is discharged up to standard, avoids causing the pollution to the environment.
Preferred specific examples are:
the capping uses the arc as the structure body, and the arc outer wall passes through the horizontal fore-and-aft strengthening rib of electrothermal welding's mode installation, leaves the hole for hoist on the strengthening rib, opens two acid mist pump drainage mouths and connects the pump drainage pipeline on the arc.
The water seal groove is integrally welded at the top of the outer wall of the pickling tank by adopting channel steel, acid-resistant rubber is lined in the channel steel, and one side of the bottom of the groove lined with rubber, which is close to the pickling tank, is required to be a horizontal groove, so that a tank cover placing platform 3-1 is formed, and the stable placement of the tank cover is ensured; the side far away from the acid tank forms a certain angle so that water can flow by itself; the overflow port is arranged at the lower side of the bottom of the water-sealed groove and is higher than the water-sealed liquid surface by a certain distance to ensure that the joint of the groove cover and the groove is always in a water-sealed state, and an overflow pipeline is connected below the overflow port and communicated to the acid inlet pipeline; the desalting water pipeline is used for conveying the desalting water to the water seal groove, and the tail end of the pipeline is provided with a flow valve for accurately controlling water flow.
All joints of the pumping and discharging pipelines are connected in an electric heat welding mode, so that the good air tightness of a pumping and discharging system is ensured; the external installation of pump drainage fan is at the end of pump drainage structure, by inverter motor drive, guarantees that pump drainage pipeline is inside to be in the negative pressure state all the time.
The acid mist condenser and the acid mist washing tower are directly arranged on a main road of the pumping and draining pipeline, and the acid mist is directly conveyed to the acid tank through a pipeline at the bottom of the condensing system after being condensed and liquefied; the alkali liquor adder is externally connected with the tail end of the pumping and draining system, a flow valve on an alkali liquor adding pipeline of the alkali liquor adder is in linkage control with a PH detector arranged at a drain outlet, and the addition amount of the alkali liquor is automatically controlled according to the detected PH value; .
The tank cover is integrally hoisted and placed on a platform at the bottom of the water seal groove, the flow valve of the desalted water pipeline is opened to enable the water surface in the water seal groove to be just in the overflow critical state, the pumping and drainage fan, the acid mist condenser and the PH detector are started after the pickling normal work, the hydrochloric acid concentration in the water seal groove is detected after a period of time, and the opening degree of the flowmeter on the desalted water pipeline is controlled to enable the water seal groove to be always in the slow overflow state and the overflow concentration to be always kept stable. The alkali liquor adder calculates according to the detection value of the PH detector and the environmental protection discharge standard value, automatically adds alkali liquor to adjust the PH to reach the environmental protection discharge standard.
The low-acid-consumption environment-friendly turbulent flow push-pull type acid pickling acid mist pumping and discharging system designed by the method has the advantages of simple structure, low manufacturing cost, strong acid mist pumping and discharging capacity, high acid liquid utilization rate, low acid consumption, environment-friendly discharge and convenient maintenance, and meets the production requirements of turbulent flow push-pull type acid pickling.
The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.
The invention is described above with reference to the accompanying drawings, it is obvious that the specific implementation of the invention is not limited by the above-mentioned manner, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and solution, or to apply the inventive concept and solution directly to other applications without modification.
Claims (10)
1. The utility model provides a low acid consumption environment-friendly pickling acid mist pump drainage system, includes descaling bath and capping, the outer wall top of descaling bath is equipped with the water seal recess, the lower limb of capping establishes in the water seal recess, its characterized in that: still include overflow pipeline and backflow pipeline and be arranged in carrying the demineralized water to the demineralized water pipeline in the water seal recess, be equipped with the overflow mouth on the water seal recess, the upper end and the overflow mouth of overflow pipeline are linked together, and the lower extreme of overflow pipeline is linked together through backflow pipeline and descaling bath or the acid inlet pipeline with the descaling bath.
2. The low acid consumption environment-friendly acid pickling acid mist pumping and discharging system as claimed in claim 1, wherein: still include acid mist pump drainage pipeline, acid mist condenser and acid mist scrubbing tower, be equipped with acid mist pump drainage mouth on the capping, the one end of acid mist pump drainage pipeline links to each other with acid mist pump drainage mouth, and the other end of acid mist pump drainage pipeline links to each other with acid mist condenser and acid mist scrubbing tower in proper order.
3. The low acid consumption environment-friendly acid pickling acid mist pumping and discharging system as claimed in claim 1, wherein: the top surface of capping is the arc structure, is equipped with the strengthening rib on the arc top surface of capping, is equipped with the hole for hoist on the strengthening rib.
4. The low acid consumption environment-friendly acid pickling acid mist pumping and discharging system as claimed in claim 1, wherein: and acid-resistant rubber is arranged on the inner surface of the water seal groove.
5. The low acid consumption environment-friendly acid pickling acid mist pumping and discharging system as claimed in claim 1, wherein: one side of the bottom of the groove of the water seal groove, which is close to the acid groove, is a horizontal groove bottom.
6. The low acid consumption environment-friendly acid pickling acid mist pumping and discharging system as claimed in claim 1 or 5, wherein: one side of the bottom of the water seal groove, which is far away from the acid tank, is of a slope structure, and an overflow port is arranged on the slope structure; or one side of the bottom of the water seal groove close to the acid groove is a horizontal groove, the other side of the bottom of the water seal groove is a chute, and the overflow port is arranged at the lower part of the chute.
7. The low acid consumption environment-friendly acid pickling acid mist pumping and discharging system as claimed in claim 2, wherein: and two opposite sides of the top of the groove cover are respectively provided with an acid mist pumping and discharging port, and the acid mist pumping and discharging ports are connected with acid mist pumping and discharging pipelines on the corresponding sides.
8. The low acid consumption environment-friendly acid pickling acid mist pumping and discharging system as claimed in claim 2, wherein: the acid mist washing tower is characterized by further comprising a pumping and draining pipeline and a pumping and draining fan which are connected, the pumping and draining pipeline is connected with the other end of the acid mist pumping and draining pipeline, the pumping and draining pipeline is sequentially connected with the acid mist condenser and the acid mist washing tower through pipelines, and a liquid outlet of the acid mist washing tower is connected with the waste water collecting structure.
9. The low acid consumption environment-friendly acid pickling acid mist pumping and discharging system as claimed in claim 8, wherein: and an alkali liquor adder is arranged between the liquid outlet of the acid mist washing tower and the wastewater collecting structure.
10. The low acid consumption environment-friendly acid pickling acid mist pumping and discharging system as claimed in claim 9, wherein: and a PH detector is arranged between the liquid outlet of the acid mist washing tower and the wastewater collecting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010128793.0A CN111235586A (en) | 2020-02-28 | 2020-02-28 | Low acid consumption environment-friendly pickling acid mist pumping and discharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010128793.0A CN111235586A (en) | 2020-02-28 | 2020-02-28 | Low acid consumption environment-friendly pickling acid mist pumping and discharging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111235586A true CN111235586A (en) | 2020-06-05 |
Family
ID=70880922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010128793.0A Pending CN111235586A (en) | 2020-02-28 | 2020-02-28 | Low acid consumption environment-friendly pickling acid mist pumping and discharging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111235586A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956201A (en) * | 2009-07-16 | 2011-01-26 | 宝钢集团新疆八一钢铁有限公司 | Environment-friendly steel wire pickling bath |
| CN204159181U (en) * | 2014-08-14 | 2015-02-18 | 尤福军 | A kind of cold-rolling pickling line acid mist reclaims circulation without tapping equipment |
| CN204474705U (en) * | 2015-02-04 | 2015-07-15 | 北京博鹏蓝天环保设备有限公司 | Water-cooled overflow water seal structure |
| CN104775129A (en) * | 2015-04-29 | 2015-07-15 | 中冶南方工程技术有限公司 | Rapid acid pickling device and method for cold-rolled steel strip |
| CN204676164U (en) * | 2015-04-29 | 2015-09-30 | 中冶南方工程技术有限公司 | A kind of fast acid cleaning device of cold rolled strip |
| CN205295473U (en) * | 2015-12-15 | 2016-06-08 | 安徽楚江特钢有限公司 | Acid tank lid that descaling bath was used |
| CN205295474U (en) * | 2015-12-15 | 2016-06-08 | 揭阳市揭东光丰钢带有限公司 | Environment -friendly cold -rolled strip continuous pickling equipment |
| CN205730752U (en) * | 2016-05-25 | 2016-11-30 | 李坤山 | A kind of acid mist recycling purifier of cold-rolling pickling line |
| CN206384832U (en) * | 2016-12-26 | 2017-08-08 | 江苏兴达钢帘线股份有限公司 | A kind of online cyclic regeneration device of hydrochloric acid |
| CN206624893U (en) * | 2017-03-02 | 2017-11-10 | 新兴铸管股份有限公司 | A kind of venting of dust explosion water seal arrangement |
| CN206660867U (en) * | 2017-02-09 | 2017-11-24 | 青岛瀚新石墨设备科技有限公司 | A kind of acid mist recycling purifier of cold-rolling pickling line provided with big specification tube-type graphite acid mist condenser |
| CN107747638A (en) * | 2017-11-15 | 2018-03-02 | 马鞍山钢铁股份有限公司 | A kind of U-shaped water seal arrangement |
| CN208803147U (en) * | 2018-08-31 | 2019-04-30 | 日照宝华新材料有限公司 | A kind of device improving the discharge of pickling water sealed tank water |
-
2020
- 2020-02-28 CN CN202010128793.0A patent/CN111235586A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956201A (en) * | 2009-07-16 | 2011-01-26 | 宝钢集团新疆八一钢铁有限公司 | Environment-friendly steel wire pickling bath |
| CN204159181U (en) * | 2014-08-14 | 2015-02-18 | 尤福军 | A kind of cold-rolling pickling line acid mist reclaims circulation without tapping equipment |
| CN204474705U (en) * | 2015-02-04 | 2015-07-15 | 北京博鹏蓝天环保设备有限公司 | Water-cooled overflow water seal structure |
| CN104775129A (en) * | 2015-04-29 | 2015-07-15 | 中冶南方工程技术有限公司 | Rapid acid pickling device and method for cold-rolled steel strip |
| CN204676164U (en) * | 2015-04-29 | 2015-09-30 | 中冶南方工程技术有限公司 | A kind of fast acid cleaning device of cold rolled strip |
| CN205295474U (en) * | 2015-12-15 | 2016-06-08 | 揭阳市揭东光丰钢带有限公司 | Environment -friendly cold -rolled strip continuous pickling equipment |
| CN205295473U (en) * | 2015-12-15 | 2016-06-08 | 安徽楚江特钢有限公司 | Acid tank lid that descaling bath was used |
| CN205730752U (en) * | 2016-05-25 | 2016-11-30 | 李坤山 | A kind of acid mist recycling purifier of cold-rolling pickling line |
| CN206384832U (en) * | 2016-12-26 | 2017-08-08 | 江苏兴达钢帘线股份有限公司 | A kind of online cyclic regeneration device of hydrochloric acid |
| CN206660867U (en) * | 2017-02-09 | 2017-11-24 | 青岛瀚新石墨设备科技有限公司 | A kind of acid mist recycling purifier of cold-rolling pickling line provided with big specification tube-type graphite acid mist condenser |
| CN206624893U (en) * | 2017-03-02 | 2017-11-10 | 新兴铸管股份有限公司 | A kind of venting of dust explosion water seal arrangement |
| CN107747638A (en) * | 2017-11-15 | 2018-03-02 | 马鞍山钢铁股份有限公司 | A kind of U-shaped water seal arrangement |
| CN208803147U (en) * | 2018-08-31 | 2019-04-30 | 日照宝华新材料有限公司 | A kind of device improving the discharge of pickling water sealed tank water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207918982U (en) | A kind of molten copper system system of foil | |
| CN111235586A (en) | Low acid consumption environment-friendly pickling acid mist pumping and discharging system | |
| CN201507918U (en) | Recovery device for steam condensate of boiler | |
| CN206868165U (en) | It is a kind of to be used to reclaim the acid preparing system again for washing sour water | |
| CN205857340U (en) | Water tank automatic sewage discharging device | |
| CN209512635U (en) | Structure for pipeline modification draining | |
| CN207673857U (en) | A kind of water sealed tank of safety and environmental protection | |
| CN209249097U (en) | A kind of nuclear power station Spent Radioactive gas processing system water seal arrangement | |
| CN219888343U (en) | Cooling device for mechanical seal cooling water circulation of centrifugal pump | |
| CN219473931U (en) | Air conditioner condensate water recycling device | |
| CN215979793U (en) | Zero-gas-consumption drain valve | |
| CN106762583B (en) | A kind of promotion method for controlling pump | |
| CN213577458U (en) | Closed collecting and automatic conveying device for steam condensate | |
| CN213392546U (en) | Mechanical seal water recovery system | |
| CN212120957U (en) | Novel automatic drainage type cleaning and recycling equipment | |
| CN210089435U (en) | Single-screw electromagnetic heating pressure reducing device | |
| CN220658553U (en) | Steam heating type plate washer | |
| CN220505452U (en) | Non-electric power siphon drainage device | |
| CN212818626U (en) | Soaking device is recycled to pottery filter secondary | |
| CN217555841U (en) | Lift pump structure and sewage treatment system | |
| CN217419924U (en) | Adjustable stripping lifting device | |
| CN216558366U (en) | Heat supply pipeline condensate water collecting and discharging structure | |
| CN212731666U (en) | Waste gas collecting and treating device for cold-rolled strip steel pickling production line | |
| CN219744396U (en) | Balance control device for internal and external working liquid levels of negative pressure washing tower | |
| CN221276810U (en) | High-efficient pump station drainage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200605 |
|
| RJ01 | Rejection of invention patent application after publication |