CN205443458U - Acid mist recycle system - Google Patents
Acid mist recycle system Download PDFInfo
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- CN205443458U CN205443458U CN201520999505.3U CN201520999505U CN205443458U CN 205443458 U CN205443458 U CN 205443458U CN 201520999505 U CN201520999505 U CN 201520999505U CN 205443458 U CN205443458 U CN 205443458U
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- acid mist
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- cold water
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- acid
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Abstract
The utility model provides an acid mist recycle system for retrieve the acid mist that forms in the pickling line use, pickling line includes the descaling bath and sprays retaining mechanism, sprays retaining mechanism and includes cold water portion, heating cabinet and hot -water tank, and cold water portion and hot -water tank are connected to the heating cabinet, and this system includes fan, condenser and absorption tower, the fan is used for absorbing the acid mist, the condenser is equipped with cold water entry, hot water export, steam entry, air conditioning export and acidizing fluid export, the steam entry linkage fan export of condenser, the entry on air conditioning exit linkage absorption tower, acidizing fluid exit linkage descaling bath, cold water entry linkage cold water portion, hot water exit linkage heating cabinet or hot -water tank, the exit gas on absorption tower directly discharges to the atmosphere in. Waste gas in the HCL condensation get off to form the condensation and get back to reuse in the acid tank after sour, realized the cyclic utilization of hydrochloric acid, practiced thrift the cost, improved exhaust gas's quality simultaneously.
Description
Technical field
This utility model relates to a kind of acid mist recycling system.
Background technology
nullThe hydrochloric acid of push pull pickling line or continuous acid-washing unit forms salt acid mist in acid cleaning process，Current commonly used air-introduced machine adds spray column water spray and absorbs heel row amplification gas，In order to adapt to the change of base band iron scale，Ensure pickling quality，Pickling unit can be from the temperature of pickling medium、Acid cleaning process faced by concentration and pickling speed tripartite is optimized，Owing to hydrochloric acid itself has volatile and deep-etching feature，Temperature raises、Concentration improves and pickling speed reduction all will increase the volatile quantity of hydrochloric acid，It is thus desirable to acid mist is processed by acid mist processing system，And existing acid mist processing system is in order to ensure the effect that acid mist processes，Use alkali liquor as absorbing liquid，There is acid-base neutralization reaction，Produce salt，Improve useless electrical conductivity of water，But waste water discharge quality after treatment cannot be ensured，Improve the cost that waste water processes，Waste the hydrochloric acid evaporated simultaneously.
Summary of the invention
In view of this, this utility model is directed to a kind of acid mist recycling system, with the problem solving the cost for wastewater treatment height of the acid mist processing system existence of prior art, acid mist can not recycle.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
Acid mist recycling system, for reclaiming the acid mist formed during pickling unit uses, described pickling unit includes descaling bath and spray water-retention mechanism, described spray water-retention mechanism includes cold water portion, adds hot tank and boiler, the described hot tank that adds connects cold water portion and boiler, this system includes that blower fan, condenser and absorption tower, described blower fan are used for absorbing acid mist；
Described condenser is provided with cold water inlet, hot water outlet, hot gas inlet, cold air outlet and acid solution outlet, the hot gas inlet connecting fan outlet of described condenser, cold air outlet connects the entrance on absorption tower, acid solution outlet connects descaling bath, cold water inlet connects cold water portion, and hot water outlet connects and adds hot tank or boiler；The exit gas on described absorption tower is directly discharged in air.
Further, described acid solution is hydrochloric acid.
Further, the hot water outlet of described condenser connects and adds hot tank.
Further, described condenser is flue gas condenser.
Further, described condenser is graphite heat exchanger.
Further, described condenser is the graphite heat exchanger of 230-280 square.
Relative to prior art, acid mist recycling system described in the utility model have the advantage that the HCL in waste gas condense out formation condensation acid after return in acid tank again with, achieve recycling of hydrochloric acid, the most recyclable hydrochloric acid 60 tons, annual 2000 tons of new water of saving, save cost, improve the quality discharging gas simultaneously.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the block diagram representation of the acid mist recycling system described in this utility model embodiment.
Reference:
1-condenser, 21-descaling bath, 221-cold water portion, 222-adds hot tank, 223-boiler, 3-blower fan, 4-absorption tower, 5-air.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in this utility model and the feature in embodiment can be mutually combined.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Acid mist recycling system, for reclaiming the acid mist formed during pickling unit uses, described pickling unit includes descaling bath 21 and spray water-retention mechanism, described spray water-retention mechanism includes cold water portion 221, adds hot tank 222 and boiler 223, the described hot tank 222 that adds connects cold water portion 221 and boiler 223, it is characterized in that: this system includes blower fan 3, condenser 1 and absorption tower 4, and described blower fan 3 is used for absorbing acid mist；
Described condenser 1 is provided with cold water inlet, hot water outlet, hot gas inlet, cold air outlet and acid solution outlet, the hot gas inlet connecting fan 3 of described condenser 1 exports, cold air outlet connects the entrance on absorption tower 4, acid solution outlet connects descaling bath 21, cold water inlet connects cold water portion 221, and hot water outlet connects and adds hot tank 222 or boiler 223；The exit gas on described absorption tower 4 is directly discharged in air 5.
Described acid solution is hydrochloric acid.
The hot water outlet of described condenser 1 connects and adds hot tank 222.
Described condenser 1 is flue gas condenser 1.
Described condenser 1 is graphite heat exchanger.
Described condenser 1 is the graphite heat exchanger of 230-280 square, the graphite heat exchanger of preferably 250 squares.
Operation principle:
Blower fan 3 absorbs acid mist, and it is transported to the hot gas inlet of 250 squares of graphite heat exchangers, the cold water in cold water portion 221 connects the cold water inlet of heat exchanger, acid mist drains into absorption tower 4 from steam mouth after heat exchanger cools down, the hot water outlet of heat exchanger connects and adds hot tank 222, save partial heat, achieve the UTILIZATION OF VESIDUAL HEAT IN of acid mist, heat exchanger work process there is part cooling acid solution drain into descaling bath 21, acid mist after the cooling of absorption tower 4 absorption heat-exchange device also enters in air 5 after being cooled to absorb, the absorption water periodic exhaustion of cooling tower, acid regeneration, achieve recycling of acid mist, decrease waste water processing links, thus reduce old of production.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (6)
1. acid mist recycling system, for reclaiming the acid mist formed during pickling unit uses, described pickling unit includes descaling bath (21) and spray water-retention mechanism, described spray water-retention mechanism includes cold water portion (221), adds hot tank (222) and boiler (223), the described hot tank (222) that adds connects cold water portion (221) and boiler (223), it is characterized in that: this system includes blower fan (3), condenser (1) and absorption tower (4), and described blower fan (3) is used for absorbing acid mist；
Described condenser (1) is provided with cold water inlet, hot water outlet, hot gas inlet, cold air outlet and acid solution outlet, hot gas inlet connecting fan (3) outlet of described condenser (1), cold air outlet connects the entrance on absorption tower (4), acid solution outlet connects descaling bath (21), cold water inlet connects cold water portion (221), and hot water outlet connects and adds hot tank (222) or boiler (223)；The exit gas on described absorption tower (4) is directly discharged in air (5).
Acid mist recycling system the most according to claim 1, it is characterised in that: described acid solution is hydrochloric acid.
Acid mist recycling system the most according to claim 1, it is characterised in that: the hot water outlet of described condenser (1) connects and adds hot tank (222).
Acid mist recycling system the most according to claim 1, it is characterised in that: described condenser (1) is flue gas condenser (1).
5. according to the acid mist recycling system described in claim 1 or 4, it is characterised in that: described condenser (1) is graphite heat exchanger.
Acid mist recycling system the most according to claim 5, it is characterised in that: described condenser (1) is the graphite heat exchanger of 230-280 square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520999505.3U CN205443458U (en) | 2015-12-04 | 2015-12-04 | Acid mist recycle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520999505.3U CN205443458U (en) | 2015-12-04 | 2015-12-04 | Acid mist recycle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205443458U true CN205443458U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520999505.3U Active CN205443458U (en) | 2015-12-04 | 2015-12-04 | Acid mist recycle system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205443458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367766A (en) * | 2016-11-04 | 2017-02-01 | 昆明理工大学 | Acid pickling device capable of effectively inhibiting generation of acid mist |
| CN109457266A (en) * | 2018-12-31 | 2019-03-12 | 天津市友发德众钢管有限公司 | Hot galvanizing Full-automatic acid washing line |
-
2015
- 2015-12-04 CN CN201520999505.3U patent/CN205443458U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106367766A (en) * | 2016-11-04 | 2017-02-01 | 昆明理工大学 | Acid pickling device capable of effectively inhibiting generation of acid mist |
| CN106367766B (en) * | 2016-11-04 | 2018-08-10 | 昆明理工大学 | A kind of acid dip pickle that can effectively inhibit acid mist to generate |
| CN109457266A (en) * | 2018-12-31 | 2019-03-12 | 天津市友发德众钢管有限公司 | Hot galvanizing Full-automatic acid washing line |
| CN109457266B (en) * | 2018-12-31 | 2024-05-28 | 天津市友发德众钢管有限公司 | Full-automatic pickling line for hot galvanizing |
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