CN105399236A - Waste acid recovery apparatus - Google Patents
Waste acid recovery apparatus Download PDFInfo
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- CN105399236A CN105399236A CN201510726252.7A CN201510726252A CN105399236A CN 105399236 A CN105399236 A CN 105399236A CN 201510726252 A CN201510726252 A CN 201510726252A CN 105399236 A CN105399236 A CN 105399236A
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Abstract
The invention discloses a waste acid recovery apparatus, which comprises a waste acid tank, a flow meter, a pressure gauge, an electric control cabinet, a manual valve, a transmission cable and at least two automatic valves, wherein the waste acid tank is connected with a waste acid inlet of a treatment tank sequentially by a waste acid pump and a first security filter, a water tank is connected with a water inlet of the treatment tank sequentially by a water pump and a second security filter, a recovered acid outlet of the treatment tank is connected with a recovered acid tank, a wastewater outlet of the treatment tank is connected with a wastewater tank, multiple treatment tanks with different sizes are provided, and a corresponding amount of waste acid treating resin is arranged in each model of treatment tank. The waste acid recovery apparatus disclosed by the invention can carry out effective recovery and regeneration on waste acids, the treatment amount of waste acids is large, and the recovery rate is high; and the apparatus is small in occupied land, more in model, less in investment cost, and less in used control parts, at least two three-way automatic valves can be used, the apparatus can serve to small and medium-sized enterprises in a vehicle-mounted mode, and the design of the apparatus can be adjusted according to the requirements of resource recovery of enterprises.
Description
Technical field
The present invention relates to industrial waste acid process field, specifically, be related specifically to a kind of acid recovery plant.
Background technology
The industries such as metal finishing industry, metal parts pickling industry and plating produce spent acid, particularly chemical engineering industry in the process of process for processing, by producing a large amount of spent acid, as Waste Sulfuric Acid, waste hydrochloric acid, waste nitric acid, waste phosphoric acid or nitration mixture etc.If these spent acid directly discharge, not only cause a large amount of wastes, cause very large pressure to ecological, environmental protective simultaneously.Therefore, need to process spent acid, waste acid recovery re-uses to workshop.
The spent acid equipment for reclaiming of the short layer bed technique of traditional employing, its diameter is at least 1.2m, in addition after support equipment, cannot serve medium-sized and small enterprises in vehicle-mounted mode; Resin bed height lower than 0.6m, and can only select single kind of resin, and function cannot expand; Resin container is that integral device involves great expense with stainless steel or glass reinforced plastic special facture; Minimum treat amount is 4m
3/ Hr, when treatment capacity is larger, need maintain resin bed height, increases surface-area, causes spent acid equipment for reclaiming floor space huge; Model is few, for the few enterprise of spent acid generation without corresponding equipment; Automatically controlled valve at least designs 7 two-way self-acting valves, and rate-determining steps is quite miscellaneous, and it is very inconvenient to use.
Summary of the invention
The object of the invention is to for deficiency of the prior art, provide a kind of acid recovery plant, to solve the problem.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of acid recovery plant, comprise waste acid pot and under meter matching used with it, tensimeter, electrical control cubicles, manual valve, self-acting valve and transmission cable, also comprise spent acid pump, treatment tank, waste water tank, water pump, water pot and recovered acid tank, waste acid pot is connected with the entrance of spent acid pump, spent acid pump outlet is connected with the spent acid entrance for the treatment of tank, the wastewater outlet for the treatment of tank is connected with waste water tank, the water-in for the treatment of tank is connected with water pump outlet, the entrance of water pump is connected with water pot, and the recovered acid outlet for the treatment of tank is connected with recovered acid tank; Treatment tank has the model of some different sizes, is provided with the spent acid process resin of respective amount in the treatment tank of each described model; The quantity of self-acting valve is at least two.
Further, between described treatment tank and spent acid pump, be provided with the first cartridge filter, between treatment tank and water pump, be provided with the second cartridge filter; The filter core of the first cartridge filter and the second cartridge filter or the precision of filter bag are 5 ~ 20 μm.
Further, described self-acting valve is driven by air-operated drive or motor.
Further, described self-acting valve can be two three-dimensional self-acting valves.
Further, described self-acting valve can be two three-dimensional self-acting valves and two two-way self-acting valves.
Further, described self-acting valve can be four three-dimensional self-acting valves.
Further, described self-acting valve can be seven two-way self-acting valves.
Further, described treatment tank is glass fiber reinforced plastic tank, and the treatment capacity of its spent acid per hour is 2 ~ 10 times of spent acid process resin amount.
Further, described spent acid process resin can be the resin anion(R.A) that particle diameter is less than 300 μm.
Further, described spent acid process resin can be the resin anion(R.A) that 70 ~ 90% particle diameters are less than the resin anion(R.A) of 300 μm and 10 ~ 30% particle diameters and are less than 500 μm.
Compared with prior art, beneficial effect of the present invention is as follows:
Cartridge filter can effectively avoid the subparticle in spent acid or water on the impact for the treatment of tank; The spent acid process resin used can not be single, effectively increases the treatment capacity of spent acid, reduces crushing, increases the rate of recovery; The control part used is few, minimumly uses two three-dimensional self-acting valves, and more simply but more accurate, treatment effect also promotes sequence of control greatly simultaneously, has saved energy use, and easy to repair, debugging is easy.
The present invention is taken up an area little, and model is many, and according to enterprise demand adjusted design, can select according to enterprise's spent acid quantity discharged the treatment tank being applicable to treatment capacity, reduce the equipment band machine time, the spent acid process resin life-span is longer, meets the requirement that enterprise wants reuse resource; Can put the service doing portable waste acidity recovery onboard, to the on-the-spot waste acid recovery of enterprise and regeneration, every day, the touring enterprise to producing spent acid, helped enterprise's waste acid recovery in leased equipment mode; Eo-acid usage quantity can be reduced, effectively reduce the load of waste water treatment plant's acid-base neutralisation unit and reduce consumption and the mud generation of alkali.
Accompanying drawing explanation
Fig. 1 is the schema of acid recovery plant of the present invention.
Fig. 2 is the design sketch for aluminium sun level process Waste Sulfuric Acid of acid recovery plant of the present invention.
Fig. 3 is the design sketch for Electroplating Operations process waste nitric acid of acid recovery plant of the present invention.
Embodiment
The technique means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
See Fig. 1, a kind of acid recovery plant of the present invention, comprises waste acid pot 1 and under meter matching used with it, tensimeter, electrical control cubicles, manual valve, self-acting valve and transmission cable.Waste acid pot 1 is connected with the entrance of spent acid pump 2, the outlet of spent acid pump 2 is connected with the spent acid entrance for the treatment of tank 3, the wastewater outlet for the treatment of tank 3 is connected with waste water tank 4, the water-in for the treatment of tank 3 is connected with the outlet of water pump 5, the entrance of water pump 5 is connected with water pot 6, and the recovered acid outlet for the treatment of tank 3 is connected with recovered acid tank 7.
The first cartridge filter 8 is provided with between treatment tank 3 and spent acid pump 2; The second cartridge filter 9 is provided with between treatment tank 3 and water pump 5.First cartridge filter 8 and the filter core of the second cartridge filter 9 or the precision of filter bag are 5 ~ 20 μm, can carry out pre-treatment to the liquid entering treatment tank 3, filter the subparticle in spent acid or water.
Self-acting valve is driven by air-operated drive or motor.The quantity of self-acting valve is at least two.Self-acting valve can be two three-dimensional self-acting valves, be located between recovered acid tank 7, water pump 5, treatment tank 3 respectively and waste water tank 4, spent acid pump 2, between treatment tank 3; Can be two three-dimensional self-acting valves and two two-way self-acting valves; Can be four three-dimensional self-acting valves; Can be seven two-way self-acting valves.
Treatment tank 3 is glass fiber reinforced plastic tank, and has the model of some different sizes, can select the treatment tank 3 of suitable model size according to the treatment capacity of spent acid.Be provided with spent acid process resin in treatment tank 3, the amount of fill of spent acid process resin is selected according to the model size for the treatment of tank 3.Spent acid process resin can be that particle diameter is less than the resin anion(R.A) of 300 μm as sour polymeric adsorbent; Or 70 ~ 90% the particle diameter resin anion(R.A) that is less than 300 μm be less than the resin anion(R.A) of 500 μm as sour polymeric adsorbent and 10 ~ 30% particle diameters as acid and separation of heavy metal ions resin.
In the process used, load different spent acid process resin amounts according to the model size for the treatment of tank 3, thus design different spent acid treatment capacities.The treatment capacity of spent acid per hour can be 2 ~ 10 times of spent acid process resin amount.The treatment capacity relation of partially disposed pot size and spent acid per hour is as shown in table 1.
Table 1
The present invention can according to enterprise demand adjusted design, as required, recovered acid concentration is more high better, the concentration of metal ions of discharging waste water is secondary, or require that the concentration of metal ions of discharging waste water is more high better, recovered acid concentration level is secondary or only requires treatment capacity, recovered acid concentration is not high with the requirement of the concentration of metal ions of discharging waste water, to meet the requirement that enterprise wants reuse resource.
Embodiment one
A program is had to be oxidation in the aluminium sun level treatment process of surface treatment industry, aluminium starting material are immersed in the sulfuric acid tank of 200 ~ 250g/L, sulfuric acid etchant and oxidation capacity is utilized to arrive next program again by after aluminium material surface process, sulfuric acid is after repeatedly processing, the aluminium of aluminium can dissolve in sulfuric acid, when aluminium ion concentration is at 7 ~ 10g/L, just need to change tank liquor.As shown in Figure 2, sulfuric acid and aluminum ion, through the present invention, separate by the tank liquor that need change, and recovered acid, after again adding high-concentration sulfuric acid, can continue to use.In the process used, utilize sulfuric acid oxidation groove when spent acid groove, by H
2sO
4for 200g/L, AL be the spent acid solution of 10g/L through the present invention, pass into suitable quantity of water in the present invention, H
2sO
4the recovered acid being 3.5g/L for 140g/L, AL returns sulfuric acid oxidation groove, H
2sO
4the waste water being 7g/L for 500g/L, AL will be discharged.
Embodiment two
As shown in Figure 3, for asking strip quick during Electroplating Operations process strip product, general use nitric acid is decoating liquid, especially moves back nickel-plated metal.In the process of actual production work, enterprise only requires format high throughput, and recovered acid concentration is not high with the requirement of the concentration of metal ions of discharging waste water.In the process used, utilize nitric acid strip groove when spent acid groove, by HNO
3for 340g/L, Ni be the spent acid solution of 18g/L through the present invention, pass into suitable quantity of water in the present invention, HNO
3the recovered acid being 12.8g/L for 264g/L, Ni returns nitric acid strip groove, HNO
3the waste water being 4.3g/L for 8g/L, Ni will be discharged.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. an acid recovery plant, comprise waste acid pot and under meter matching used with it, tensimeter, electrical control cubicles, manual valve, self-acting valve and transmission cable, it is characterized in that: also comprise spent acid pump, treatment tank, waste water tank, water pump, water pot and recovered acid tank, described waste acid pot is connected with the entrance of spent acid pump, spent acid pump outlet is connected with the spent acid entrance for the treatment of tank, the wastewater outlet for the treatment of tank is connected with waste water tank, the water-in for the treatment of tank is connected with water pump outlet, the entrance of water pump is connected with water pot, and the recovered acid outlet for the treatment of tank is connected with recovered acid tank; Treatment tank has the model of some different sizes, is provided with the spent acid process resin of respective amount in the treatment tank of each model; The quantity of self-acting valve is at least two.
2. a kind of acid recovery plant according to claim 1, is characterized in that: be provided with the first cartridge filter between described treatment tank and spent acid pump, is provided with the second cartridge filter between treatment tank and water pump; The filter core of the first cartridge filter and the second cartridge filter or the precision of filter bag are 5 ~ 20 μm.
3. a kind of acid recovery plant according to claim 1, is characterized in that: described self-acting valve is driven by air-operated drive or motor.
4. a kind of acid recovery plant according to claim 1, is characterized in that: described self-acting valve can be two three-dimensional self-acting valves.
5. a kind of acid recovery plant according to claim 1, is characterized in that: described self-acting valve can be two three-dimensional self-acting valves and two two-way self-acting valves.
6. a kind of acid recovery plant according to claim 1, is characterized in that: described self-acting valve can be four three-dimensional self-acting valves.
7. a kind of acid recovery plant according to claim 1, is characterized in that: described self-acting valve can be seven two-way self-acting valves.
8. a kind of acid recovery plant according to claim 1, is characterized in that: described treatment tank is glass fiber reinforced plastic tank, and the treatment capacity of its spent acid per hour is 2 ~ 10 times of spent acid process resin amount.
9. a kind of acid recovery plant according to claim 1, is characterized in that: described spent acid process resin can be the resin anion(R.A) that particle diameter is less than 300 μm.
10. a kind of acid recovery plant according to claim 1, is characterized in that: described spent acid process resin can be the resin anion(R.A) that 70 ~ 90% particle diameters are less than the resin anion(R.A) of 300 μm and 10 ~ 30% particle diameters and are less than 500 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510726252.7A CN105399236A (en) | 2015-10-29 | 2015-10-29 | Waste acid recovery apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510726252.7A CN105399236A (en) | 2015-10-29 | 2015-10-29 | Waste acid recovery apparatus |
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| CN105399236A true CN105399236A (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510726252.7A Pending CN105399236A (en) | 2015-10-29 | 2015-10-29 | Waste acid recovery apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311856A (en) * | 2017-08-13 | 2017-11-03 | 河南省煤气(集团)有限责任公司义马气化厂 | A kind of purification recovery system of acetic acid waste liquid |
| CN108905631A (en) * | 2018-08-31 | 2018-11-30 | 内蒙古通威高纯晶硅有限公司 | A kind of waste nitric acid recovery and processing system |
| CN115671862A (en) * | 2022-09-15 | 2023-02-03 | 金华市益洁水处理科技有限公司 | Waste nitric acid treatment process |
Citations (4)
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| US6358421B1 (en) * | 2000-04-18 | 2002-03-19 | United States Filter Corporation | Method for countercurrent regeneration of an ion exchange resin bed |
| CN201525888U (en) * | 2009-11-19 | 2010-07-14 | 上海宝钢设备检修有限公司 | Acid regenerating system for cold-rolling acid-washing waste acid containing iron ions |
| CN204661330U (en) * | 2015-05-11 | 2015-09-23 | 广西梧州华锋电子铝箔有限公司 | A kind of phosphoric acid recovery system of formed aluminum foil production line |
| CN205222862U (en) * | 2015-10-29 | 2016-05-11 | 钱中明 | Useless acid recovery plant |
-
2015
- 2015-10-29 CN CN201510726252.7A patent/CN105399236A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6358421B1 (en) * | 2000-04-18 | 2002-03-19 | United States Filter Corporation | Method for countercurrent regeneration of an ion exchange resin bed |
| CN201525888U (en) * | 2009-11-19 | 2010-07-14 | 上海宝钢设备检修有限公司 | Acid regenerating system for cold-rolling acid-washing waste acid containing iron ions |
| CN204661330U (en) * | 2015-05-11 | 2015-09-23 | 广西梧州华锋电子铝箔有限公司 | A kind of phosphoric acid recovery system of formed aluminum foil production line |
| CN205222862U (en) * | 2015-10-29 | 2016-05-11 | 钱中明 | Useless acid recovery plant |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311856A (en) * | 2017-08-13 | 2017-11-03 | 河南省煤气(集团)有限责任公司义马气化厂 | A kind of purification recovery system of acetic acid waste liquid |
| CN108905631A (en) * | 2018-08-31 | 2018-11-30 | 内蒙古通威高纯晶硅有限公司 | A kind of waste nitric acid recovery and processing system |
| CN115671862A (en) * | 2022-09-15 | 2023-02-03 | 金华市益洁水处理科技有限公司 | Waste nitric acid treatment process |
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Application publication date: 20160316 |