CN105413410A - Device for recycling and purifying acid mist of pickling line - Google Patents
Device for recycling and purifying acid mist of pickling line Download PDFInfo
- Publication number
- CN105413410A CN105413410A CN201511034927.8A CN201511034927A CN105413410A CN 105413410 A CN105413410 A CN 105413410A CN 201511034927 A CN201511034927 A CN 201511034927A CN 105413410 A CN105413410 A CN 105413410A
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- CN
- China
- Prior art keywords
- acid mist
- acid
- mixing column
- mist
- gas outlet
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- 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.)
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Classifications
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- 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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0027—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium
- B01D5/003—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium within column(s)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
- B01D2257/2045—Hydrochloric acid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/025—Other waste gases from metallurgy plants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to a device for recycling and purifying acid mist of a pickling line. The device comprises an acid mist absorption assembly, a mixing tower, a condensation tower, an acid liquor recycling tank and an induced draft fan. A gas outlet of the acid mist absorption assembly is communicated with a gas inlet in the lower portion of the mixing tower and connected with a gas outlet of a roasting furnace. A gas outlet in the upper portion of the mixing tower is connected with a gas inlet in the lower portion of the condensation tower, and a gas outlet in the upper portion of the condensation tower is connected with the induced draft fan. According to the device for recycling and purifying acid mist of the pickling line, an atomizer is introduced into the mixing tower for the first time, acid mist and water mist are mixed to be subjected to cooling absorption, acid mist can be recycled and can be cooled, the dual effects are achieved, and purifying efficiency is improved.
Description
Technical field
The invention belongs to energy-saving equipment field, especially a kind of pickling line acid mist reclaiming clean equipment.
Background technology
Current China cold-rolling pickling production line has hundreds of bar, no matter be continuous acid-washing or plug-type pickling in the sector, its acid cleaning process be all first by hydrochloric acid to 18% ~ 20% concentration, be heated to the temperature needed for acid cleaning process again, carry out circulating the homogeneous temperature making acid by circulating pump, send into descaling bath again, carry out shallow slot turbulence acid dip band steel.In this course along with the rising (75 ~ 850C) of acid liquor temperature, a large amount of HCL gas evaporates from descaling bath along with water vapour, produces a large amount of acid mists.This phenomenon according to my company experience for many years and not timing to the former field conditions sampling Detection of client, acid mist concentration is between 7% ~ 15%.Therefore the loss of hydrochloric acid and the purification of acid mist just become two hang-ups of puzzlement enterprise.
At present, the acid mist that acid cleaning process produces by most of producer adopts the mode of purifying column washing to carry out spray washing absorption to acid mist, the rear sour water of absorption is directly delivered to neutralisation treatment station and is carried out acid-base neutralization, both acid solution is wasted like this, waste again alkali raw material, if (carry out processing with milk of lime and create a large amount of waste residues and cause secondary pollution), also creates negative effect to environment, makes unit cost production increase.Acid mist carries out spray washing by means of only purifying column simultaneously, is difficult to reach country's discharge current standard.
Patent document 201728055U discloses a kind of acid mist reclaiming clean equipment, comprises acid dip pickle, mist collector, purifying column, fog discharge blower fan, and described acid dip pickle is connected with condenser, liquid drop separator, purifying column, fog discharge blower fan successively by mist collector; Described liquid drop separator is connected with acid dip pickle by acid storage tank.
Patent document 201524514U discloses a kind of acid mist washing and recycling purifier, the spray discharge tower formation comprising horizontally disposed adsorbing separation pipeline and vertically set up, and the bottom inlet that the outlet of described adsorbing separation pipeline and spray discharge tower is communicated with; It is characterized in that: in described adsorbing separation pipeline, be provided with separating mechanism, this separating mechanism is then formed with the porous flat plate being arranged at both sides by being fixed on ducted porous inserts; In described spray discharge tower, be disposed with the downward spraying mechanism of 2-4 group shower nozzle, and one to two group shower nozzles spraying mechanism is upwards formed; The bottom of discharging tower in the bottom of adsorbing separation pipeline and spray is respectively arranged with the outlet of acid solution and mixed liquor.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, the pickling line acid mist reclaiming clean equipment providing a kind of novel structure, organic efficiency high.
The technical scheme that the present invention realizes object is as follows:
A kind of acid regeneration acid mist reclaiming clean equipment, comprise acid mist absorbent assembly, mixing column, condensing tower, acid solution recycling can and air-introduced machine, the gas outlet of acid mist absorbent assembly is communicated with the gas outlet that the bottom air inlet connecting mixing column connects roaster, the gas outlet, top of mixing column connects the bottom air inlet of condensing tower, and the gas outlet, top of condensing tower connects air-introduced machine; The structure of described acid mist absorbent assembly, for comprising a horizontal acid mist extraction duct, is provided with multiple acid mist and absorbs mouth at the interval, bottom of acid mist extraction duct, absorb in mouth install filter core at acid mist; Described mixing column is acid mist water smoke mixing column, water smoke eruption assembly is installed on the top of mixing column, water smoke eruption assembly enter the atomizer that mist section is fastened on mixing column, in described condensing tower, condensing fin assembly is installed, condensing fin assembly is communicated with and connects refrigeration unit, after cooling, liquid instills acid solution feeder downwards, is shaped with feeder in condensing tower bottom, and feeder connects acid solution recycling can by pipeline.
And be shaped with acid solution feeder in the tower bottom of described mixing column, this acid solution feeder is by pipeline communication acid solution recycling can.
Beneficial effect of the present invention is:
Pickling line acid mist reclaiming clean equipment provided by the invention introduces atomizer first in mixing column, absorbing carrying out cooling after acid mist and water smoke mixing, can acid mist be reclaimed on the one hand, can lower the temperature to acid mist on the other hand, play dual effect, improve purification efficiency.
The configured in one piece of pickling line acid mist reclaiming clean equipment provided by the invention is simple, and operating process is smooth and easy, and restored acid liquid can recycle, environmental protection.
Accompanying drawing explanation
Fig. 1 is heat pipe flue gas waste heat recovery apparatus (broken section) of the present invention;
Detailed description of the invention
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of pickling line acid mist reclaiming clean equipment, comprise acid mist absorbent assembly, mixing column 2, condensing tower 6, acid solution recycling can 9 and air-introduced machine 8, the gas outlet of acid mist absorbent assembly is communicated with the gas outlet that the bottom air inlet connecting mixing column connects roaster, the gas outlet, top of mixing column connects the bottom air inlet of condensing tower, the gas outlet, top of condensing tower connects air-introduced machine, air-introduced machine provides acid solution in intrasystem operation attraction, and after purification, qualified air is removed in air.
The structure of described acid mist absorbent assembly is for comprising a horizontal acid mist extraction duct 1, multiple acid mist is installed at the interval, bottom of acid mist extraction duct and absorbs mouth 1-1, absorbing in mouth at acid mist and filter core 1-2 is installed, for filtering the impurity in the acid mist that absorbs and, ensureing the function smoothly of whole pipeline.Filter core can adopt the filter core such as pottery, asbestos.
Described mixing column is acid mist water smoke mixing column, water smoke eruption assembly 3 is installed on the top of mixing column, water smoke eruption assembly enter the atomizer 4 that mist section is fastened on mixing column, the mist that atomizer produces sends the outlet front end on mixing column top forth uniformly by water smoke eruption component level, when acid mist is through out-of-date, acid mist can be mixed fully with water smoke, condensing fin assembly 5 is installed in condensing tower, condensing fin assembly is communicated with and connects refrigeration unit 7, lowered the temperature by the acid mist/mist mixture of condensing tower, acid solution feeder is shaped with in condensing tower bottom, after cooling, liquid instills acid solution feeder downwards, feeder again connecting pipe collects acid solution recycling can, acid solution feeder is shaped with in the tower bottom of mixing column, this acid solution feeder is also by pipeline communication acid solution recycling can, for reclaiming again in mixing column a small amount of acid solution produced, acid solution in acid solution recycling can directly reuses, or carry out diluting or increase acid according to concentration, finally be utilized again.
The operating principle of this device is as follows:
Acid mist to be entered by blower fan sucking-off from descaling bath and to enter clean solidifying tower condensation and dewfall aerosol mixing column fully mixes (atomized water by the atomization device of aerosol mixing column produce) with atomized water after and is formed and carry out secondary condensation by mixing again with liquid sour water (returning atomized water generator to recycle) residual gas (still containing higher acidity), when the acidity of the liquid after being condensed reaches finite concentration, or directly send pickling line back to or send into complex acid pond.
Acid mist is finally up to standard through the overall absorption of mixing column and condensing tower, and gas enters air.
Claims (2)
1. a pickling line acid mist reclaiming clean equipment, it is characterized in that: comprise acid mist absorbent assembly, mixing column, condensing tower, acid solution recycling can and air-introduced machine, the gas outlet of acid mist absorbent assembly is communicated with the gas outlet that the bottom air inlet connecting mixing column connects roaster, the gas outlet, top of mixing column connects the bottom air inlet of condensing tower, and the gas outlet, top of condensing tower connects air-introduced machine; The structure of described acid mist absorbent assembly, for comprising a horizontal acid mist extraction duct, is provided with multiple acid mist and absorbs mouth at the interval, bottom of acid mist extraction duct, absorb in mouth install filter core at acid mist; Described mixing column is acid mist water smoke mixing column, water smoke eruption assembly is installed on the top of mixing column, water smoke eruption assembly enter the atomizer that mist section is fastened on mixing column, in described condensing tower, condensing fin assembly is installed, condensing fin assembly is communicated with and connects refrigeration unit, after cooling, liquid instills acid solution feeder downwards, is shaped with feeder in condensing tower bottom, and feeder connects acid solution recycling can by pipeline.
2. pickling line acid mist reclaiming clean equipment according to claim 1, is characterized in that: be shaped with acid solution feeder in the tower bottom of described mixing column, and this acid solution feeder is by pipeline communication acid solution recycling can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511034927.8A CN105413410A (en) | 2015-12-31 | 2015-12-31 | Device for recycling and purifying acid mist of pickling line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511034927.8A CN105413410A (en) | 2015-12-31 | 2015-12-31 | Device for recycling and purifying acid mist of pickling line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105413410A true CN105413410A (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511034927.8A Pending CN105413410A (en) | 2015-12-31 | 2015-12-31 | Device for recycling and purifying acid mist of pickling line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105413410A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107419284A (en) * | 2017-09-18 | 2017-12-01 | 滁州富达机械电子有限公司 | One kind is applied to pickling of metal EGT compensation purification collection system |
| CN108144405A (en) * | 2018-01-18 | 2018-06-12 | 邯郸钢铁集团有限责任公司 | A kind of acid mist tail gas level cleaning system |
| CN109136961A (en) * | 2018-11-19 | 2019-01-04 | 海盐力拓金属制品有限公司 | A kind of metal wire rod pickler |
| CN111534776A (en) * | 2020-05-21 | 2020-08-14 | 温州泰昌铁塔制造有限公司 | Energy-saving environment-friendly hot galvanizing production system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3533595A1 (en) * | 1985-09-20 | 1987-04-02 | Nitsche Manfred | METHOD FOR SEPARATING WATER VAPOR, SOLVENTS AND / OR POLLUTANTS FROM A GAS FLOW, AND DEVICE FOR CARRYING OUT THE METHOD |
| CN1406662A (en) * | 2001-09-03 | 2003-04-02 | 赵明 | Gas dissolver |
| CN201728055U (en) * | 2010-08-19 | 2011-02-02 | 天津市亿博制钢有限公司 | Acid mist recovering and purifying equipment |
| CN102350078A (en) * | 2011-08-16 | 2012-02-15 | 扬州明增生物科技有限公司 | Acid fog recovery device |
| CN202410488U (en) * | 2012-01-11 | 2012-09-05 | 福建省测试技术研究所 | Absorbing/purifying/recycling device for waste gas |
| CN202460442U (en) * | 2011-12-21 | 2012-10-03 | 河南海力特机电制造有限公司 | Acid mist absorption processing device of high-pressure water mist |
| CN205288031U (en) * | 2015-12-31 | 2016-06-08 | 天津君议台科技发展有限公司 | Clarification plant is retrieved to pickling line acid mist |
-
2015
- 2015-12-31 CN CN201511034927.8A patent/CN105413410A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3533595A1 (en) * | 1985-09-20 | 1987-04-02 | Nitsche Manfred | METHOD FOR SEPARATING WATER VAPOR, SOLVENTS AND / OR POLLUTANTS FROM A GAS FLOW, AND DEVICE FOR CARRYING OUT THE METHOD |
| CN1406662A (en) * | 2001-09-03 | 2003-04-02 | 赵明 | Gas dissolver |
| CN201728055U (en) * | 2010-08-19 | 2011-02-02 | 天津市亿博制钢有限公司 | Acid mist recovering and purifying equipment |
| CN102350078A (en) * | 2011-08-16 | 2012-02-15 | 扬州明增生物科技有限公司 | Acid fog recovery device |
| CN202460442U (en) * | 2011-12-21 | 2012-10-03 | 河南海力特机电制造有限公司 | Acid mist absorption processing device of high-pressure water mist |
| CN202410488U (en) * | 2012-01-11 | 2012-09-05 | 福建省测试技术研究所 | Absorbing/purifying/recycling device for waste gas |
| CN205288031U (en) * | 2015-12-31 | 2016-06-08 | 天津君议台科技发展有限公司 | Clarification plant is retrieved to pickling line acid mist |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107419284A (en) * | 2017-09-18 | 2017-12-01 | 滁州富达机械电子有限公司 | One kind is applied to pickling of metal EGT compensation purification collection system |
| CN108144405A (en) * | 2018-01-18 | 2018-06-12 | 邯郸钢铁集团有限责任公司 | A kind of acid mist tail gas level cleaning system |
| CN109136961A (en) * | 2018-11-19 | 2019-01-04 | 海盐力拓金属制品有限公司 | A kind of metal wire rod pickler |
| CN111534776A (en) * | 2020-05-21 | 2020-08-14 | 温州泰昌铁塔制造有限公司 | Energy-saving environment-friendly hot galvanizing production system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160323 |