CN205182457U - Contain chromic acid gas multi -stage purification recovery unit - Google Patents
Contain chromic acid gas multi -stage purification recovery unit Download PDFInfo
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- CN205182457U CN205182457U CN201521025386.8U CN201521025386U CN205182457U CN 205182457 U CN205182457 U CN 205182457U CN 201521025386 U CN201521025386 U CN 201521025386U CN 205182457 U CN205182457 U CN 205182457U
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- gas circuit
- recovery
- chromic acid
- gas
- acid gas
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Abstract
The utility model provides a contain chromic acid gas multi -stage purification recovery unit, include that the baffling board as elementary purification recovery purifies recycle bin, filter screen as secondary purification recovery purifies recycle bin, wherein the baffling board purifies recycle bin and is equipped with chromic acid gas entry, chromic acid gas entry is connected with outside sour gas inlet line, the baffling board purifies recycle bin and is equipped with the export of elementary purification recovery sour gas, the filter screen purifies recycle bin and is equipped with secondary purification recovery sour gas entry, the secondary purification recovery sour gas entry that purifies export of recovery sour gas and filter screen purification recycle bin's lower part side elementarily feeds through, be equipped with gaseous mass detection sensor in the export of secondary purification recovery sour gas, the gas circuit is discharge to reach standard gas circuit and non - recycling gas circuit up to standard respectively, wherein the discharge to reach standard gas circuit communicates with external, non - recycling gas circuit up to standard is recycling gas circuit pipe, recycling gas circuit pipe and outside sour gas inlet line intercommunication.
Description
Technical field
The utility model belongs to a kind of equipment of field of gas purification, particularly in one plating chrome-plated process and in chromic acid use procedure, containing the multistage purification recovery device of chromic acid gas in process waste gas.
Background technology
Chromic acid is a kind of binary strong acid, and yellow strongly acidic solution can only be present in the aqueous solution, generates yellow barium chromate or precipitation of lead chromate with soluble barium salt or lead salt effect.In an acidic solution, mainly exist with dichromic acid form, the oxidisability that tool is very strong.Result from plating and leather industry containing mist of chromic acid waste gas, mist of chromic acid all has harm to human body skin and respiratory tract, should in addition purified treatment.The purification of mist of chromic acid waste gas during chromium plating: conventional purification method from waste gas, the chromic acid droplet in suspended particulate shape is separated, and collected process.Clarifier has grid type, baffle-type, material filling type, centrifugal and condensing etc. multiple, wherein better with grid type.The grid type mist of chromic acid clarifier of having shaped at present has vertical and horizontal two kinds, and often kind has different model, to adapt to different exhaust-gas treatment amounts.The action principle of grid type clarifier is, mist of chromic acid waste gas when by multilayer crisscross plastics expanded metals (or plastic window screening), at inertia, hook, condensation, the effect such as diffusion effect under, by filter screen detention, be condensed into liquid, along filter screen downstream to guide groove.Flowed in recover through fluid-tight device by conduit.When the wind speed by filter screen is 1 ~ 3m/s, purification efficiency is more than 99%.Due to the effusion of hydrogen and oxygen during chromium plating, take a large amount of chromic acid out of.Distribute in workshop air to prevent mist of chromic acid, sometimes in coating bath, add appropriate " F-53 " surfactant (perfluoroalkyl ether potassium sulfonate), make raw " F-53 " surfactant (perfluoroalkyl ether potassium sulfonate) of coating bath liquid level, coating bath liquid level is made to generate the fine and closely woven froth bed of one deck, reduce chromium plating liquid surface tension, thus hydrogen and oxygen are easily overflowed, control and reduce distributing of mist of chromic acid.Leather industry produces light leather, conventional chrome tanning.At present, arsenic (sodium dichromate or potassium bichromate) is mostly adopted to make basic chromium sulfate salt as tanning agent.In preparation process, hexavalent chrome reduction is trivalent chromium, and temperature is raised to about 100 DEG C in fluidized state, therefore has a large amount of chromic acid gas with water vapour and carbon dioxide gas effusion, not only have lost chromic acid, and contaminated air, therefore need take recovery measure.Existing chromic acid gas Recovery Purifying equipment clean reclaims single often, and clean-up effect can not adapt to the requirement of existing discharge standard, along with some manufacturing industry and industrial miniature compact type extensive development, increases step by step the environmental pollution of location.Recovery process: arsenic pours dissolving bucket into, until completely dissolved with being pumped into reactor, then the concentrated sulfuric acid is injected, and reductant solution is slowly added still from head tank, now, arsenic solution boiling reduction, escaping gas is discharged, through cooling tower condensation, to recycling can from the blast pipe on still top, tail gas enters air, and the arsenic of recovery is poured into dissolve in bucket and utilized.
Summary of the invention
The purpose of this utility model overcomes above-mentioned not enough problem, there is provided a kind of containing chromic acid gas multistage purification recovery device, it is lower that this device overcomes existing purification recovery device organic efficiency, the shortcoming of gas still containing certain density chromic acid after purification, by multistage purification, improve the Recovery Purifying effect of chromic acid.
The technical scheme that the utility model is adopted for achieving the above object is: a kind of containing chromic acid gas multistage purification recovery device, comprise the deflection plate Recovery Purifying cylinder as primary purifying retracting device, as the filter screen Recovery Purifying cylinder of secondary stage purified retracting device, wherein the bottom sides of deflection plate Recovery Purifying cylinder is provided with chromic acid gas entrance, chromic acid gas entrance is connected with outside acid gas entrance pipe, the top of deflection plate Recovery Purifying cylinder is provided with primary purifying and reclaims acid gas outlet, the lower side of filter screen Recovery Purifying cylinder is provided with secondary stage purified and reclaims acid gas entrance, the outlet of primary purifying recovery acid gas is reclaimed acid gas entrance by the anticorrosion gas circuit pipe of acid-proof with the secondary stage purified of the lower side of filter screen Recovery Purifying cylinder and is communicated with, the top of filter screen Recovery Purifying cylinder is provided with secondary stage purified and reclaims acid gas outlet, secondary stage purified reclaims in acid gas outlet and is provided with gaseous mass acquisition sensor, secondary stage purified reclaims acid gas outlet and connects the anticorrosion gas circuit pipe of acid-proof, this gas circuit pipe top is provided with gas circuit and controls three-way valve, gas circuit controls three-way valve and is connected with gaseous mass acquisition sensor, gas circuit controls three-way valve and is provided with signal receiver and controller, the signal receiver that gaseous mass acquisition sensor and gas circuit control three-way valve is adaptive, the gas circuit incoming road of three-way valve is unidirectional, gas circuit whereabouts is two-way, two-way gas circuit is respectively qualified discharge gas circuit and non-recirculation gas circuit up to standard, wherein qualified discharge gas circuit is in communication with the outside, non-recirculation gas circuit up to standard is recirculation gas circuit pipe, recirculation gas circuit pipe is communicated with outside acid gas entrance pipe.
As preferably, deflection plate Recovery Purifying cylinder and filter screen Recovery Purifying cylinder are oval cylindrical shell, and cylinder internal upper part is equipped with spray head, are wherein provided with sawtooth deflection plate in the middle part of deflection plate Recovery Purifying cylinder, sawtooth deflection plate bottom connects the water draining plate that horizontal tilt angle is 30 degree, filter screen Recovery Purifying cylinder.
As preferably, external chromic acid recovery cylinder respectively bottom deflection plate Recovery Purifying cylinder and filter screen Recovery Purifying cylinder, connected by pipeline between two recovery cylinders, pipeline is provided with by-pass valve.
As preferably, acid-proof anticorrosion gas circuit pipe is provided with flabellum and bearing is stainless anti-chromic acid wind-guiding blower fan.
As preferably, deflection plate Recovery Purifying cylinder is communicated with by same water route pipeline with the spray head on filter screen Recovery Purifying cylinder top, this water route pipeline is arranged by-pass valve control and hydraulic pressure detector.
As preferably, cylindrical shell, spray head and inner barrel pipeline are the stainless steel of anti-chromic acid.
The utility model beneficial effect: through this containing chromic acid gas multistage purification recovery device purified gas, its degree up to standard is detected by acquisition sensor, as up to standard in failed, continuation is entered again purification recovery device to circulate, until gaseous mass is up to standard, the area higher for emission request and industry, this device meets instructions for use completely, can purify by iterative cycles, the chromic acid after recovery can drop in the production of upper level again, has saved raw-material consumption.
accompanying drawing illustrates:
Fig. 1 is the structural representation of the utility model entirety.
In figure: 1 deflection plate Recovery Purifying cylinder; 2 filter screen Recovery Purifying cylinders; 3 water draining plates; 4 sawtooth deflection plates; 5 spray heads; 6 anti-chromic acid wind-guiding blower fans; 7 secondary stage purified reclaim acid gas entrance; 8,9 chromic acid recovery cylinders; 10 by-pass valve controls; 11 gas circuits control three-way valve; 12 gaseous mass acquisition sensors; 13 hydraulic pressure detectors; 14 water route pipelines; 15 screen packs; 16 connecting lines; The anticorrosion gas circuit pipe of 17 acid-proof; 18 recirculation gas circuit pipes; 19 by-pass valves.
detailed description of the invention:
As shown in Figure 1, the utility model describes a kind of containing chromic acid gas multistage purification recovery device, comprise the deflection plate Recovery Purifying cylinder 1 as primary purifying retracting device, as the filter screen Recovery Purifying cylinder 2 of secondary stage purified retracting device, wherein the bottom sides of deflection plate Recovery Purifying cylinder 1 is provided with chromic acid gas entrance, chromic acid gas entrance is connected with outside acid gas entrance pipe, the top of deflection plate Recovery Purifying cylinder 1 is provided with primary purifying and reclaims acid gas outlet, the lower side of filter screen Recovery Purifying cylinder 2 is provided with secondary stage purified and reclaims acid gas entrance 7, the outlet of primary purifying recovery acid gas is reclaimed acid gas entrance 7 by the anticorrosion gas circuit pipe 17 of acid-proof with the secondary stage purified of the lower side of filter screen Recovery Purifying cylinder 2 and is communicated with, the top of filter screen Recovery Purifying cylinder 2 is provided with secondary stage purified and reclaims acid gas outlet, secondary stage purified reclaims in acid gas outlet and is provided with gaseous mass acquisition sensor 12, secondary stage purified reclaims acid gas outlet and connects the anticorrosion gas circuit pipe 17 of acid-proof, this gas circuit pipe top is provided with gas circuit and controls three-way valve 11, gas circuit controls three-way valve 11 and is connected with gaseous mass acquisition sensor 12, gas circuit controls three-way valve 11 and is provided with signal receiver and controller, the signal receiver that gaseous mass acquisition sensor 12 and gas circuit control three-way valve 11 is adaptive, the gas circuit incoming road of three-way valve is unidirectional, gas circuit whereabouts is two-way, two-way gas circuit is respectively qualified discharge gas circuit and non-recirculation gas circuit up to standard, wherein qualified discharge gas circuit is in communication with the outside, non-recirculation gas circuit up to standard is recirculation gas circuit pipe 18, recirculation gas circuit pipe 18 is communicated with outside acid gas entrance pipe.
Deflection plate Recovery Purifying cylinder 1 and filter screen Recovery Purifying cylinder 2 are oval cylindrical shell, cylinder internal upper part is equipped with spray head 5, wherein be provided with sawtooth deflection plate 4 in the middle part of deflection plate Recovery Purifying cylinder 1, sawtooth deflection plate 4 bottom connects the water draining plate 3 that horizontal tilt angle is 30 degree, up arranges the screen pack 15 filtering chromic acid in the middle part of filter screen Recovery Purifying cylinder 2.
Distinguish external chromic acid recovery cylinder 8,9 bottom deflection plate Recovery Purifying cylinder 1 and filter screen Recovery Purifying cylinder 2, connected by connecting line 16 between two recovery cylinders, pipeline is provided with by-pass valve 19.
Acid-proof anticorrosion gas circuit pipe 17 is provided with flabellum and bearing is stainless anti-chromic acid wind-guiding blower fan 6.
Deflection plate Recovery Purifying cylinder 1 is communicated with by same water route pipeline 14 with the spray head 5 on filter screen Recovery Purifying cylinder 2 top, this water route pipeline 14 is arranged by-pass valve control 10 and hydraulic pressure detector 13.
Cylindrical shell, spray head 5 and inner barrel pipeline are the stainless steel of anti-chromic acid.
The utility model is through carrying out multistage purification recovery to the gas containing chromic acid, detect its degree up to standard by acquisition sensor, and continue to carry out Recovery Purifying circulation, reach gaseous mass up to standard, meet the requirement of the higher area of standard and industry, can iterative cycles purification.
Claims (6)
1. one kind contains chromic acid gas multistage purification recovery device, comprise the deflection plate Recovery Purifying cylinder (1) as primary purifying retracting device, as the filter screen Recovery Purifying cylinder (2) of secondary stage purified retracting device, it is characterized in that the bottom sides of deflection plate Recovery Purifying cylinder (1) is provided with chromic acid gas entrance, chromic acid gas entrance is connected with outside acid gas entrance pipe, the top of deflection plate Recovery Purifying cylinder (1) is provided with primary purifying and reclaims acid gas outlet, the lower side of filter screen Recovery Purifying cylinder (2) is provided with secondary stage purified and reclaims acid gas entrance (7), the outlet of primary purifying recovery acid gas is reclaimed acid gas entrance (7) by the anticorrosion gas circuit pipe (17) of acid-proof with the secondary stage purified of the lower side of filter screen Recovery Purifying cylinder (2) and is communicated with, the top of filter screen Recovery Purifying cylinder (2) is provided with secondary stage purified and reclaims acid gas outlet, secondary stage purified reclaims in acid gas outlet and is provided with gaseous mass acquisition sensor (12), secondary stage purified reclaims acid gas outlet and connects the anticorrosion gas circuit pipe (17) of acid-proof, this gas circuit pipe top is provided with gas circuit and controls three-way valve (11), gas circuit controls three-way valve (11) and is connected with gaseous mass acquisition sensor (12), gas circuit controls three-way valve (11) and is provided with signal receiver and controller, the signal receiver that gaseous mass acquisition sensor (12) and gas circuit control three-way valve (11) is adaptive, the gas circuit incoming road of three-way valve is unidirectional, gas circuit whereabouts is two-way, two-way gas circuit is respectively qualified discharge gas circuit and non-recirculation gas circuit up to standard, wherein qualified discharge gas circuit is in communication with the outside, non-recirculation gas circuit up to standard is recirculation gas circuit pipe (18), recirculation gas circuit pipe (18) is communicated with outside acid gas entrance pipe.
2. as claimed in claim 1 a kind of containing chromic acid gas multistage purification recovery device, it is characterized in that deflection plate Recovery Purifying cylinder (1) and filter screen Recovery Purifying cylinder (2) are oval cylindrical shell, cylinder internal upper part is equipped with spray head (5), wherein deflection plate Recovery Purifying cylinder (1) middle part is provided with sawtooth deflection plate (4), sawtooth deflection plate (4) bottom connects the water draining plate (3) that horizontal tilt angle is 30 degree, and filter screen Recovery Purifying cylinder (2) middle part up arranges the screen pack (15) filtering chromic acid.
3. as claimed in claim 2 a kind of containing chromic acid gas multistage purification recovery device, it is characterized in that deflection plate Recovery Purifying cylinder (1) and filter screen Recovery Purifying cylinder (2) bottom external chromic acid recovery cylinder (8,9) respectively, connected by connecting line (16) between two recovery cylinders, pipeline is provided with by-pass valve (19).
4. as claimed in claim 3 a kind of containing chromic acid gas multistage purification recovery device, it is characterized in that acid-proof anticorrosion gas circuit pipe (17) is provided with flabellum and bearing is stainless anti-chromic acid wind-guiding blower fan (6).
5. as claimed in claim 4 a kind of containing chromic acid gas multistage purification recovery device, it is characterized in that deflection plate Recovery Purifying cylinder (1) is communicated with by same water route pipeline (14) with the spray head (5) on filter screen Recovery Purifying cylinder (2) top, this water route pipeline (14) is arranged by-pass valve control (10) and hydraulic pressure detector (13).
6. as claimed in claim 5 a kind of containing chromic acid gas multistage purification recovery device, it is characterized in that above-mentioned various cylindrical shell, spray head (5) and inner barrel pipeline are the stainless steel of anti-chromic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521025386.8U CN205182457U (en) | 2015-12-11 | 2015-12-11 | Contain chromic acid gas multi -stage purification recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521025386.8U CN205182457U (en) | 2015-12-11 | 2015-12-11 | Contain chromic acid gas multi -stage purification recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205182457U true CN205182457U (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521025386.8U Expired - Fee Related CN205182457U (en) | 2015-12-11 | 2015-12-11 | Contain chromic acid gas multi -stage purification recovery unit |
Country Status (1)
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| CN (1) | CN205182457U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107376592A (en) * | 2017-07-11 | 2017-11-24 | 石家庄印钞有限公司 | A kind of chromium plating fog recovery and treatment method |
| CN107497246A (en) * | 2017-07-11 | 2017-12-22 | 石家庄印钞有限公司 | Chromium plating fog reclaiming clean device |
| CN107774052A (en) * | 2017-11-22 | 2018-03-09 | 郑州源冉生物技术有限公司 | Industrial waste gas high-efficiency purification treatment equipment |
| CN107913569A (en) * | 2017-11-22 | 2018-04-17 | 郑州源冉生物技术有限公司 | High-efficiency type exhaust gas purification and treatment device |
| CN109091994A (en) * | 2018-08-20 | 2018-12-28 | 郑州源冉生物技术有限公司 | A kind of soda acid exhaust gas biological purifying processing unit |
-
2015
- 2015-12-11 CN CN201521025386.8U patent/CN205182457U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107376592A (en) * | 2017-07-11 | 2017-11-24 | 石家庄印钞有限公司 | A kind of chromium plating fog recovery and treatment method |
| CN107497246A (en) * | 2017-07-11 | 2017-12-22 | 石家庄印钞有限公司 | Chromium plating fog reclaiming clean device |
| CN107376592B (en) * | 2017-07-11 | 2021-01-08 | 石家庄印钞有限公司 | Chromium plating mist recovery treatment method |
| CN107774052A (en) * | 2017-11-22 | 2018-03-09 | 郑州源冉生物技术有限公司 | Industrial waste gas high-efficiency purification treatment equipment |
| CN107913569A (en) * | 2017-11-22 | 2018-04-17 | 郑州源冉生物技术有限公司 | High-efficiency type exhaust gas purification and treatment device |
| CN109091994A (en) * | 2018-08-20 | 2018-12-28 | 郑州源冉生物技术有限公司 | A kind of soda acid exhaust gas biological purifying processing unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20161211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |