CN212504496U - Waste gas purification device for waste acid sludge treatment system - Google Patents
Waste gas purification device for waste acid sludge treatment system Download PDFInfo
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- CN212504496U CN212504496U CN201922262000.XU CN201922262000U CN212504496U CN 212504496 U CN212504496 U CN 212504496U CN 201922262000 U CN201922262000 U CN 201922262000U CN 212504496 U CN212504496 U CN 212504496U
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- tank
- waste
- absorption
- air inlet
- gas purification
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- 239000002253 acid Substances 0.000 title claims abstract description 36
- 239000002912 waste gas Substances 0.000 title claims abstract description 29
- 239000010802 sludge Substances 0.000 title claims abstract description 27
- 238000000746 purification Methods 0.000 title claims abstract description 26
- 239000002699 waste material Substances 0.000 title claims abstract description 22
- 238000010521 absorption reaction Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 230000008929 regeneration Effects 0.000 claims abstract description 15
- 238000011069 regeneration method Methods 0.000 claims abstract description 15
- 239000002808 molecular sieve Substances 0.000 claims abstract description 5
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 21
- 238000003825 pressing Methods 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 238000004064 recycling Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 14
- 238000003860 storage Methods 0.000 abstract description 7
- 239000000945 filler Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 3
- 238000010168 coupling process Methods 0.000 abstract 3
- 238000005859 coupling reaction Methods 0.000 abstract 3
- 239000002351 wastewater Substances 0.000 description 13
- 238000005554 pickling Methods 0.000 description 9
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005273 aeration Methods 0.000 description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910002588 FeOOH Inorganic materials 0.000 description 1
- 229910021577 Iron(II) chloride Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical group Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Abstract
The utility model relates to a waste gas purification device for spent acid sludge treatment system, alkaline water storage jar (9) and spent acid storage jar (10) are through tube coupling to agitator tank (1), agitator tank (1) is through tube coupling to reaction regeneration jar (2), reaction regeneration jar (2) are equipped with tube coupling to exhaust purification subassembly (4), exhaust purification subassembly (4) include condenser (101), and the air outlet of this condenser (101) communicates to the air inlet of absorption tank (102) through the pipeline, the air inlet of absorption tank two (104) is gone into to the gas outlet of absorption tank (102) behind absorption cell (103), and the gas outlet of this absorption tank two (104) communicates to the air inlet of filler tank (105), and the gas outlet of this filler tank (105) communicates to the bottom air inlet of exhaust stack (107) through molecular sieve (106). The utility model relates to a waste acid sludge treatment is exhaust gas purification device for system has the positive benefit of environmental protection.
Description
Technical Field
The utility model relates to a metal product pickling waste water treatment technical field especially relates to a waste acid sludge treatment is exhaust gas purification device for system.
Background
At present, a large amount of rinsing wastewater is generated in the acid washing process of steel processing enterprises, the main component of the wastewater is FeCl2 or FeS04 aqueous solution with the acid pH value of less than 2, and when the wastewater is contacted with air in the nature, trivalent ferrous oxide red precipitate is formed by air oxidation, so that water turbidity pollutes water sources. Acid pickling wastewater of iron and steel acid pickling enterprises is generally subjected to neutralization treatment on acid-containing wastewater by using cheap alkaline treatment agent lime (calcium oxide) in a sewage treatment process, and because the solubility of the calcium oxide in water is very low and the calcium oxide is not completely dissolved in a neutralization reaction process, a large amount of oxides are generated and cannot be dissolved in water and are coated by ferrous ions to form Fe (OH) 3. a-FeOOH, industrial sludge generated after filter pressing of a sludge mixture becomes yellowish brown pollutants, secondary pollution to the environment can be generated during storage and transportation, and because the iron-containing magnitude is low, the existing treatment method is buried after being treated by a manufacturer with qualification treatment, so that serious economic burden and pollution to the environment are brought to the enterprises; for this reason, the enterprise develops, for example, chinese patent 201820268848.6, which discloses a waste gas purification device for a spent acid sludge treatment system, which has the advantages of simple process, convenient operation, easy control, low processing cost and high treatment efficiency, to solve the above problems; however, in practical application, it is found that, at this time, the exhaust gas generated in the recovery process is discharged through simple physical adsorption, which seriously affects the environment and is not beneficial to creating environment-friendly manufacturing enterprises.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned not enough, provide a waste gas purification device for spent acid sludge treatment system, it can be effectual collects and purifies the waste gas in the reaction sequence to reduce the destruction of environment among the whole reaction sequence, thereby the effectual environmental protection benefit that has improved.
The purpose of the utility model is realized like this:
a waste gas purification device for a waste acid sludge treatment system comprises a stirring tank, a reaction regeneration tank, a cooling tank, a filter-pressing dehydrator and a filter-pressing water recycling tank which are sequentially communicated, wherein the waste acid sludge treatment system is formed by the stirring tank, the reaction regeneration tank, the cooling tank, the filter-pressing dehydrator and the filter-pressing water recycling tank; the waste gas purification assembly comprises a condenser, pipelines arranged at the tops of the reaction regeneration tank and the cooling tank are communicated to an air inlet of the condenser, an air outlet of the condenser is communicated to an air inlet of the first absorption tank through the pipeline, an air outlet of the first absorption tank enters an air inlet of the second absorption tank through the absorption pool, an air outlet of the second absorption tank is communicated to an air inlet of the packing tank, and an air outlet of the packing tank is communicated to an air inlet at the bottom of the exhaust chimney through the molecular sieve.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model can filter the polluting gas in the waste gas during the discharge by performing multiple purification on the waste gas, thereby reducing the influence on the environment; meanwhile, the concentration of the acid gas in the waste gas is reduced by utilizing the preposed condensation, and the acid gas can be subsequently collected into a waste liquid pool and then filtered and recycled, so that the production cost is reduced.
Drawings
FIG. 1 is a process flow diagram of a system of the waste gas purifying device for a waste acid sludge treatment system in the application process.
FIG. 2 is a block diagram of the waste gas purification device for waste acid sludge treatment system of the present invention.
Wherein:
the system comprises a stirring tank 1, a reaction regeneration tank 2, a medicament tank 3, a waste gas purification assembly 4, a cooling tank 5, a cooling tower 6, a filter-pressing dehydrator 7, a filter-pressing water recycling tank 8, an alkaline water storage tank 9, a waste acid storage tank 10 and a pulp maker 11;
the system comprises a condenser 101, a first absorption tank 102, an absorption pool 103, a second absorption tank 104, a packing tank 105, a molecular sieve 106 and an exhaust chimney 107.
Detailed Description
Referring to fig. 1 and fig. 2, the waste gas purification device for waste acid sludge treatment system of the utility model comprises a stirring tank 1, a reaction regeneration tank 2, a cooling tank 5, a filter-pressing dehydrator 7 and a filter-pressing water recycling tank 8 which are sequentially communicated,
the waste gas purification component 4 comprises a condenser 101, pipelines arranged at the tops of the reaction regeneration tank 2 and the cooling tank 5 are communicated with an air inlet of the condenser 101, an air outlet of the condenser 101 is communicated with an air inlet of the first absorption tank 102 through a pipeline, an air outlet of the first absorption tank 102 enters an air inlet of the second absorption tank 104 after passing through an absorption pool 103, an air outlet of the second absorption tank 104 is communicated with an air inlet of a filler tank 105, and an air outlet of the filler tank 105 is communicated with an air inlet at the bottom of an exhaust chimney 107 through a molecular sieve 106; activated carbon particles are filled in the first absorption tank 102, water or alkali liquor is filled in the absorption tank 103 and used for absorbing or neutralizing acid gas in tail gas, and absorbent materials such as sponge are filled in the filler tank 105 and used for absorbing acid water vapor.
Further, a canopy with a conical structure is installed on the top of the exhaust chimney 107.
Further, a liquid outlet at the bottom of the condenser 101 is communicated to a waste liquid pool;
when the device is used, the waste gas is subjected to multiple purification, so that the polluting gas in the waste gas can be filtered during discharge, and the influence on the environment is reduced; meanwhile, the concentration of the acid gas in the waste gas is reduced by utilizing the preposed condensation, and the acid gas can be subsequently collected into a waste liquid pool and then filtered and recycled, so that the production cost is reduced.
Further, the process flow of the whole system is as follows: the method comprises the following steps of (1) pumping pickling wastewater sludge into a stirring tank 1, wherein an alkaline water storage tank 9 and a waste acid storage tank 10 are respectively connected to the stirring tank 1, injecting alkaline water and waste acid into the stirring tank 1 through a pipeline, and adjusting the pH value of the pickling wastewater sludge to a specified value after fully stirring; conveying the acid pickling wastewater sludge with the adjusted pH value to a reaction regeneration tank 2 through a pipeline, inputting air into the reaction regeneration tank 1 through an aeration pipeline to carry out aeration stirring oxidation on the acid pickling wastewater sludge, stopping aeration stirring after Fe2+ and Fe3+ in the acid pickling wastewater sludge are fully oxidized, injecting a catalyst in a medicament tank 3 into the reaction regeneration tank 1, inputting steam into the reaction regeneration tank 1 through a steam pipeline to carry out heating catalytic treatment on the stirred acid pickling wastewater sludge, introducing waste gas generated in the catalytic process into a waste gas purification component 4 through a pipeline, arranging an adsorption and filtration multi-stage device in the waste gas purification component 4, discharging the waste after purification to reduce pollution to the environment, stopping steam heating when the sludge is black in color (Fe 3O4 suspension is formed at the moment), conveying the Fe3O4 suspension to a cooling tank 5 through a pipeline to cool, waste gas generated in the cooling process enters the waste gas purification assembly 4 through a pipeline to be filtered and purified and then is discharged, the cooling tower 6 is arranged outside the cooling tank 5, cooling medium is stored in the cooling tower 6, and the cooling medium forms a circulating cooling system in the cooling tank 5 through the pipeline, so that the cooling process of the Fe3O4 suspension is accelerated, the cooling time is shortened, and the cooling efficiency is effectively improved; the Fe3O4 turbid liquid after the cooling is conveyed to the filter-pressing dehydrator 7 through a pipeline for filter pressing, the filter cake is Fe3O4 sludge after the filter pressing for the raw materials of steel smelting, and the waste water after the filter pressing is discharged to the filter-pressing water recycling tank 8 through a pipeline, the filter-pressing water recycling tank 8 is connected to the stirring tank through a pipeline, so that the recycling of the waste water is realized, and the pollution to the environment is reduced.
In addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.
Claims (4)
1. A waste gas purification device for a waste acid sludge treatment system comprises a stirring tank (1), a reaction regeneration tank (2), a cooling tank (5), a filter-pressing dehydrator (7) and a filter-pressing water recycling tank (8) which are sequentially communicated, wherein the waste acid sludge treatment system is formed by the stirring tank, the reaction regeneration tank, the cooling tank and the filter-pressing water recycling tank; the method is characterized in that:
the waste gas purification assembly (4) comprises a condenser (101), pipelines arranged at the tops of the reaction regeneration tank (2) and the cooling tank (5) are communicated to an air inlet of the condenser (101), an air outlet of the condenser (101) is communicated to an air inlet of the first absorption tank (102) through a pipeline, an air outlet of the first absorption tank (102) enters an air inlet of the second absorption tank (104) through an absorption pool (103), an air outlet of the second absorption tank (104) is communicated to an air inlet of the packing tank (105), and an air outlet of the packing tank (105) is communicated to a bottom air inlet of an exhaust chimney (107) through a molecular sieve (106).
2. The waste gas purification device for waste acid sludge treatment system of claim 1, wherein: activated carbon particles are filled in the absorption tank I (102), water or alkali liquor is filled in the absorption pool (103), and sponge is filled in the filling tank (105).
3. The waste gas purification device for waste acid sludge treatment system of claim 1, wherein: the top of the exhaust chimney (107) is provided with a rain shelter with a conical structure.
4. The waste gas purification device for waste acid sludge treatment system of claim 1, wherein: and a liquid outlet at the bottom of the condenser (101) is communicated to a waste liquid pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922262000.XU CN212504496U (en) | 2019-12-16 | 2019-12-16 | Waste gas purification device for waste acid sludge treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922262000.XU CN212504496U (en) | 2019-12-16 | 2019-12-16 | Waste gas purification device for waste acid sludge treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212504496U true CN212504496U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922262000.XU Expired - Fee Related CN212504496U (en) | 2019-12-16 | 2019-12-16 | Waste gas purification device for waste acid sludge treatment system |
Country Status (1)
| Country | Link |
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| CN (1) | CN212504496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477688A (en) * | 2022-04-14 | 2022-05-13 | 生态环境部华南环境科学研究所 | Ozone generating device for biochemical sludge treatment |
-
2019
- 2019-12-16 CN CN201922262000.XU patent/CN212504496U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114477688A (en) * | 2022-04-14 | 2022-05-13 | 生态环境部华南环境科学研究所 | Ozone generating device for biochemical sludge treatment |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 |