A kind of acid recovery equipment and using method thereof
An acid recovery and equipment technology, applied in chemical instruments and methods, heating water/sewage treatment, multi-stage water treatment, etc., can solve the problems of low recovery rate of acid treatment equipment, incomplete acid treatment, etc., to save raw material costs, The effect of improving environmental protection value and efficient recycling
Active Publication Date: 2018-05-04
广东欧邦环保科技有限公司
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is that the recovery rate of existing acid treatment equipment is low and the problem of incomplete treatment of acid
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[0028] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0029] Such as figure 1 , figure 2 As shown, the acid recovery equipment provided by the present invention includes a loop composed of a waste acid preheating system, a product acid generation separation system and a vaporization separation system in sequence, wherein the waste acid preheating system includes a waste acid storage The storage tank 10 is provided with a waste acid chamber and a product acid chamber respectively, and the storage tank 10 has a first heating device for heating the waste acid; the product acid generation and separation system includes a vacuum circulation device 1 and a cooking tank in sequence 2. The cooking tank 2 is provided with a second heating device that can separate the acid and water in the waste acid, wherein the volume of the cooking tank 2 is preferably 6m³, the cooking time is preferably 3 hours, and the temperature of the c...
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The invention discloses acid recovery equipment and a using method thereof. The acid recovery equipment comprises a loop which is formed by sequentially connecting a waste acid preheating system, a product acid production and separation system and a vaporization separation system. According to the acid recovery equipment and the using method thereof, the whole process flow is short, less power equipment is required, easiness for control is ensured, the acid recovery equipment and the using method thereof are applicable to recovery of low-concentration (10 to 90 percent) waste sulfuric acid and phosphoric acid and mixed acid, and a recovered product is adjustable in concentration with the optimal concentration being 30 to 90 percent; a step-by-step heating cooking separation technology is utilized, so that the recovery energy consumption is low, and water vapor can be separated from acid and recycled to efficiently recover an acid component in industrial waste acid mixed liquor to greatly reduce raw material cost for an enterprise, greatly improve the environmental value and save energy resources for the country.
Description
technical field [0001] The invention relates to an acid recovery process, in particular to an acid recovery device and a use method thereof. Background technique [0002] The existing aluminum chemical polishing industry needs to use a large amount of phosphoric acid and sulfuric acid, and the ratio of phosphoric acid and sulfuric acid is basically between 4:1 and 1:1. However, after chemical polishing, washing with water will bring out a large amount of acid. At present, chemical polishing of one ton of aluminum requires about 200 kilograms of mixed acid. It is estimated that hundreds of millions of acids are wasted across the country. Acid will pollute the environment and needs to be neutralized with a large amount of alkali, but the phosphate and sulfate radicals in it cannot be completely removed, so a more advanced acid treatment equipment is needed on the market now. Contents of the invention [0003] The technical problem to be solved by the invention is that the r...
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IPC IPC(8): C02F1/04
CPCC02F1/04C02F2301/08
Inventor 吕海明
Owner 广东欧邦环保科技有限公司