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Leather waste vaporizing combustion and heat recovery system, and operation method thereof

A leather waste and heat recovery technology, applied in the direction of combustion method, combustion type, incinerator, etc., can solve the problems of pollution, unfavorable cleaning and recycling of leather waste, waste water, waste gas secondary pollution, etc., to reduce NOX pollution and realize Effect of harmless treatment and reduction of fly ash content

Inactive Publication Date: 2013-10-23
WENZHOU SPECIAL EQUIP INSPECTION CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. For leather and leather waste, the Chinese patent application with application number 01106725.X proposes that peptone and gelatin can be produced by hydrolysis through acid-base treatment, but the products obtained by this method are very easy to absorb moisture and liquefy, and the yield of gelatin Low, it will also cause pollution in other aspects, and the practicability is not good
[0004] 2. For artificial leather waste, Chinese Patent Publication No. CN85107745A proposes that its recycling mainly uses it as a plastic raw material after refining it, but this method needs to clean the artificial leather waste in the process of refining, and also needs to use a large amount of chemical Additives; although the recycling of leather waste can be realized, it will also form a large amount of secondary pollution such as waste water and waste gas
Simultaneously, the finished product quality of the regenerated leather produced by this method is relatively poor, and this will seriously affect the scope of use of regenerated leather
[0006] Direct incineration of leather waste, because of incomplete combustion, produces a large amount of black smoke containing stench, the main components of which are coke particles, SO X , NO X , Cl 2 , CO and other harmful products to the human body, and even produce carcinogens - dioxins, causing secondary environmental pollution
[0007] To sum up, the application of the above method to deal with leather waste, although the recycling of leather waste can be realized to a certain extent, but at the same time, secondary pollution such as waste water and waste gas will be formed, which is not conducive to the clean recycling of leather waste

Method used

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  • Leather waste vaporizing combustion and heat recovery system, and operation method thereof
  • Leather waste vaporizing combustion and heat recovery system, and operation method thereof
  • Leather waste vaporizing combustion and heat recovery system, and operation method thereof

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] see figure 1 As shown, a leather waste gasification combustion and heat recovery system proposed by the present invention includes a feeding system, a gasification chamber 5, a combustion chamber 9, a slag discharge device and a waste heat recovery device. The gasification chamber 5 and the combustion chamber 9 are cylindrical, and the top tangential direction is respectively provided with a gasification chamber secondary air inlet 3 and a combustion chamber secondary air inlet 8; the top of the gasification chamber 5 is also provided with a gasification chamber The primary air inlet 4; the bottom of the gasification chamber 5 and the combustion chamber 9 is equipped with a slagging device, the outer wall of the gasification chamber 5 and the combustion chamber 9 is wrapped with an air preheating device 14, and the gasification...

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Abstract

The invention discloses a leather waste vaporizing combustion and heat recovery system, and an operation method thereof. The operation method comprises the steps that leather waste is subjected to high-temperature cyclone vaporizing in a section of the vaporizing combustion and heat recovery system; after gas is separated from liquid ash, the gas enters a second section and is supplemented with excessive air, so that the gas is combusted completely; flue gas generated after the gas is combusted completely enters waste heat recovery equipment, so that waste heat is recovered; and finally, the flue gas is discharged after purification and dust removal. The system is simple in structure and high in combustion intensity, can reduce pollutants effectively, and achieves clean recycling of the leather waste.

Description

【Technical field】 [0001] The invention relates to a gasification combustion and heat recovery system of leather waste and an operation method thereof. 【Background technique】 [0002] In the leather industry, a large amount of dander, broken skin and leftovers will be produced. In recent years, my country has become the world's largest leather producer. According to statistics, there were more than 200 PU leather manufacturers in my country in 2006, and about 1.4 million tons of leather waste solid waste can be generated every year. If these leather wastes are not handled properly, they will pollute the environment. Some leathers also contain a certain amount of Cr 3+ , and the pollution it causes is even more serious if it is not handled properly. On the other hand, leather waste usually has a certain calorific value, and some leather waste has the value of reuse, which has led to the research on the utilization and resource utilization of leather waste. At present, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G7/00
Inventor 徐翔刘银河张永剑
Owner WENZHOU SPECIAL EQUIP INSPECTION CENT
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