CN102285642A - Waste acid treatment device - Google Patents
Waste acid treatment device Download PDFInfo
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- CN102285642A CN102285642A CN2010102039262A CN201010203926A CN102285642A CN 102285642 A CN102285642 A CN 102285642A CN 2010102039262 A CN2010102039262 A CN 2010102039262A CN 201010203926 A CN201010203926 A CN 201010203926A CN 102285642 A CN102285642 A CN 102285642A
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- gas
- water
- spent acid
- cooled assembly
- acid treatment
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Abstract
The invention relates to a waste acid treatment device which comprises a waste acid input pipeline. The waste acid treatment device is characterized in that the waste acid input pipeline is connected with a gas-solid separation device; the gas-solid separation device is provided with a hot wind input end and a gas output end, and simultaneously, the gas-solid separation device is internally provided with an atomization device; the atomization device is connected with the waste acid input pipeline; the bottom of the gas-solid separation device is provided with a solid precipitation device; the gas output end is provided with cooling components which comprise a main water cooling component and a vice water cooling component; the main water cooling component and the vice water cooling component are connected through a conduit; and the absorption end of the main water cooling component is provided with a low-concentration hydrogen fluoride collecting device, and the absorption end of the vice water cooling component is provided with an anhydrous hydrofluoric acid collecting device and a waste gas and waste water collecting device. Thus, specific equipment is adopted for spray drying and gas-solid separation is combined, thereby improving the degree of absorption and reclamation of gas and meeting the environmental protection requirement which is most needed currently.
Description
Technical field
The present invention relates to a kind of treatment facility, relate in particular to a kind of spent acid treatment facility.
Background technology
The whole nation produces 7000 tons of above-mentioned series products at present, 22400 tons in the residue spent acid of being produced, (wherein 70% is that HF acid .10% receives for fluoridizing for water .20%) present whole nation all adds a certain proportion of sulfuric acid with one ton of spent acid and distills the use later of proposition anhydrous hydrofluoric acid.Cause a large amount of sulfur waste acid to enter inland river and sea, do not have a tame enterprise energy qualified discharge.
Summary of the invention
Purpose of the present invention is exactly in order to solve the above-mentioned problems in the prior art, and a kind of spent acid treatment facility is provided.
Purpose of the present invention is achieved through the following technical solutions:
A kind of spent acid treatment facility includes the spent acid input channel, and wherein: be connected with gas-solid separating device on the described spent acid input channel, described gas-solid separating device is provided with hot blast input terminus, gas output end; Be provided with atomisation unit in the described gas-solid separating device, atomisation unit links to each other with the spent acid input channel; Described gas-solid separating device bottom is provided with the solid precipitation device; Described gas output end is provided with cooling module, and shown cooling module includes main water-cooled assembly and secondary water-cooled assembly, and main water-cooled assembly links to each other by conduit with secondary water-cooled assembly; The absorption limit of described main water-cooled assembly is provided with lower concentration and fluoridizes the hydrogen collection device; Secondary water-cooled assembly absorption limit is provided with anhydrous hydrofluoric acid collection device and waste gas waste water collection device.
Above-mentioned a kind of spent acid treatment facility, wherein: described hot blast input terminus is positioned at the gas-solid separating device upper end, and described gas output end is positioned at the gas-solid separating device lower end, and described atomisation unit is an atomizing disk, and described atomizing disk height is higher than the hot blast input terminus.
Further, above-mentioned a kind of spent acid treatment facility, wherein: be provided with water coolant in the described main water-cooled assembly, be provided with refrigerated brine in the described secondary water-cooled assembly.
Further, above-mentioned a kind of spent acid treatment facility, wherein: described waste gas waste water collection device is a negative pressure pump formula absorption unit.
Again further, go up above-mentioned a kind of spent acid treatment facility, wherein: described secondary water-cooled assembly includes three independent water-cooling towers, links to each other by conduit between the independent water-cooling tower.
The advantage of technical solution of the present invention is mainly reflected in: adopt in the particular device and carry out spraying drying, in conjunction with gas solid separation, improve the degree that gas absorption is later used, having saved a large amount of vitriolic does not have a spent acid to get rid of simultaneously, meets the environmental protection demand that needs most at present.
Description of drawings
Purpose of the present invention, advantage and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain.These embodiment only are the prominent examples of using technical solution of the present invention, and all technical schemes of taking to be equal to replacement or equivalent transformation and forming all drop within the scope of protection of present invention.In the middle of these accompanying drawings,
Fig. 1 is the organigram of this spent acid treatment facility.
The implication of each Reference numeral is as follows among the figure:
1 spent acid input channel, 2 gas-solid separating devices
3 hot blast input terminuss, 4 solid precipitation devices
5 atomizing disks, 6 lower concentrations are fluoridized the hydrogen collection device
7 main water-cooled assembly 8 negative pressure pump formula absorption units
9 anhydrous hydrofluoric acid collection devices, 10 refrigerated brines
11 water coolants, 12 secondary water-cooled assemblies
Embodiment
A kind of spent acid treatment facility as shown in Figure 1 includes spent acid input channel 1, and its special feature is: be connected with gas-solid separating device 2 on the described spent acid input channel 1, described gas-solid separating device 2 is provided with hot blast input terminus 3, gas output end.And, in gas-solid separating device 2, being provided with atomisation unit, atomisation unit links to each other with spent acid input channel 1.Gas-solid separating device 2 bottoms are provided with solid precipitation device 4.Gas output end on be provided with cooling module, this cooling module includes main water-cooled assembly 7 and secondary water-cooled assembly 12, main water-cooled assembly 7 and secondary water-cooled assembly 12 link to each other by conduit.Simultaneously, the absorption limit of main water-cooled assembly 7 is provided with lower concentration and fluoridizes hydrogen collection device 6.Secondary water-cooled assembly 12 absorption limits are provided with anhydrous hydrofluoric acid collection device 9 and waste gas waste water collection device.
In conjunction with the present invention's one preferred implementation, hot blast input terminus 3 is positioned at gas-solid separating device 2 upper ends, and described gas output end is positioned at gas-solid separating device 2 lower ends.Simultaneously, for the ease of improving atomizing effect, the increase atomized liquid contacts with spent acid, and atomisation unit is an atomizing disk 5, and atomizing disk 5 highly is higher than hot blast input terminus 3.
Further, consider that preferable cold filtration is carried out in the air inlet after main water-cooled assembly 7 and 12 pairs of atomizings of secondary water-cooled assembly, simultaneously preferable response behaviour can be arranged.Be provided with water coolant 11 in the main water-cooled assembly 7, be provided with refrigerated brine 10 in the described secondary water-cooled assembly 12.For the ease of remaining waste gas waste water is collected, avoid revealing, simultaneously also for waste gas waste water is carried out follow-up second stage employ, the waste gas waste water collection device is a negative pressure pump formula absorption unit 8.
Simultaneously, find that by multiple comparison test the present invention adopts three independent water-cooling towers to constitute secondary water-cooled assembly 12, link to each other by conduit between each independent water-cooling tower, can maximize processing to the spent acid gas after the gas solid separation like this.
In conjunction with actual service condition of the present invention, after spent acid enters atomizing disk 5, with per minute greater than 10,000 rotary speed ejection spent acid mist.Afterwards, by the input of hot blast input terminus 3, the spent acid mist combines with hot gas.Specifically, its bonded temperature is 200 to 300 degrees centigrade.Simultaneously, the solid under the effect of gas-solid separating device 2 in the spent acid mist is separated gradually, and gas then enters next procedure by pipeline.Afterwards,, finally can reclaim the content more than 98% in the spent acid mist, obtain anhydrous hydrofluoric acid by brine freezing.
By above-mentioned character express also in conjunction with the accompanying drawings as can be seen, after adopting the present invention, adopt in the particular device and carry out spraying drying, in conjunction with gas solid separation, improve the degree that gas absorption is later used, having saved a large amount of vitriolic does not have a spent acid to get rid of simultaneously, meets the environmental protection demand that needs most at present.
Claims (5)
1. a spent acid treatment facility includes the spent acid input channel, it is characterized in that: be connected with gas-solid separating device on the described spent acid input channel, described gas-solid separating device is provided with hot blast input terminus, gas output end; Be provided with atomisation unit in the described gas-solid separating device, atomisation unit links to each other with the spent acid input channel; Described gas-solid separating device bottom is provided with the solid precipitation device; Described gas output end is provided with cooling module, and shown cooling module includes main water-cooled assembly and secondary water-cooled assembly, and main water-cooled assembly links to each other by conduit with secondary water-cooled assembly; The absorption limit of described main water-cooled assembly is provided with lower concentration and fluoridizes the hydrogen collection device; Secondary water-cooled assembly absorption limit is provided with anhydrous hydrofluoric acid collection device and waste gas waste water collection device.
2. a kind of spent acid treatment facility according to claim 1, it is characterized in that: described hot blast input terminus is positioned at the gas-solid separating device upper end, described gas output end is positioned at the gas-solid separating device lower end, and described atomisation unit is an atomizing disk, and described atomizing disk height is higher than the hot blast input terminus.
3. a kind of spent acid treatment facility according to claim 1 is characterized in that: be provided with water coolant in the described main water-cooled assembly, be provided with refrigerated brine in the described secondary water-cooled assembly.
4. a kind of spent acid treatment facility according to claim 1 is characterized in that: described waste gas waste water collection device is a negative pressure pump formula absorption unit.
5. a kind of spent acid treatment facility according to claim 1 is characterized in that: described secondary water-cooled assembly includes three independent water-cooling towers, links to each other by conduit between the independent water-cooling tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102039262A CN102285642A (en) | 2010-06-21 | 2010-06-21 | Waste acid treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102039262A CN102285642A (en) | 2010-06-21 | 2010-06-21 | Waste acid treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102285642A true CN102285642A (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102039262A Pending CN102285642A (en) | 2010-06-21 | 2010-06-21 | Waste acid treatment device |
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| CN (1) | CN102285642A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192805B (en) * | 2014-10-10 | 2016-06-15 | 上海清瑞环保科技有限公司 | The process of Fluohydric acid. is recovered by filtration from etching machine production line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88103731A (en) * | 1987-06-16 | 1988-12-28 | 安德烈茨机械制造股份公司 | From a kind of metallic acid solution, produce or reclaim the method for this kind acid |
| CN201737691U (en) * | 2010-06-21 | 2011-02-09 | 苏州爱游网络科技有限公司 | Waste acid treatment device |
-
2010
- 2010-06-21 CN CN2010102039262A patent/CN102285642A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88103731A (en) * | 1987-06-16 | 1988-12-28 | 安德烈茨机械制造股份公司 | From a kind of metallic acid solution, produce or reclaim the method for this kind acid |
| CN201737691U (en) * | 2010-06-21 | 2011-02-09 | 苏州爱游网络科技有限公司 | Waste acid treatment device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192805B (en) * | 2014-10-10 | 2016-06-15 | 上海清瑞环保科技有限公司 | The process of Fluohydric acid. is recovered by filtration from etching machine production line |
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Application publication date: 20111221 |