Purification system and purification method for treating VOCs-containing waste gas by using circulating fluidized bed.
A waste gas purification system and circulating fluidized bed technology, applied in chemical instruments and methods, combustion methods, gas treatment, etc., can solve the problems of low purification efficiency, limited application conditions and high investment costs of VOCs waste gas treatment technology, and achieve the goal of overcoming Low adsorption effect, reduced system investment and operating costs, and less dosage
Pending Publication Date: 2019-01-01
浙江中兵环保股份有限公司
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[0007] In order to solve the problems of low purification efficiency, high investment cost and limited application conditions of the above-mentioned VOCs waste gas treatment technology, a circulating fluidized bed treatment system and method for treating waste gas containing VOCs is now proposed
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[0029] The present invention will be further described below in conjunction with the accompanying drawings.
[0030] Such as figure 1 As shown: the present invention includes a circulating fluidized bed adsorption device 1, a gas-solid separator 11, a VOCs-containing gas inlet 12, a gas outlet 13, an adsorbate inlet and outlet 14, a regeneration device 2, a bag filter a3, a fan a4, and an incineration device 5. Bag filter b6, fan b7. Waste gas containing high, medium and low concentrations of VOCs enters the circulating fluidized bed adsorption device 1 through the VOCs-containing gas inlet 12, and the adsorbate with adsorptive properties enters the circulating fluidized bed adsorption device 1 through the adsorbate inlet and outlet 14, and the circulating fluidized In the bed-type adsorption device 1, after the gaseous state of the VOCs-containing waste gas is in close contact with the adsorbate with adsorption capacity, it is transformed into an adsorbate that carries organ...
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The invention relates to the field of environmental engineering waste gas treatment, particularly to a purification system and a purification method for treating VOCs-containing waste gas by using a circulating fluidized bed. The purification system comprises a circulating fluidized bed type adsorption device, a regeneration device, a bag dust removal device, a fan and an incineration device, wherein one end of the circulating fluidized bed type adsorption device is connected to the regeneration device, the regeneration device is connected to the bag dust removal device, the bag dust removal device is connected to the fan, the other end of the circulating fluidized bed type adsorption device is connected to the bag dust removal device, and the bag dust removal device is connected to the fan. According to the present invention, the waste gas is converted into the fluid-state adsorbate carrying the organic matters after the waste gas contacts the adsorbate having adsorption ability, theadsorbate is captured and then is regenerated, the desorbed organic matters are subjected to harmless treatment by the incineration device, the desorbed and regenerated adsorbate is transported to thecirculating fluidized bed type adsorption device and is reused so as to meet the requirements of the recycling of the adsorbate; and the system and the method have characteristics of high VOCs removal rate, less adsorbate consumption and no emission of wastewater and other secondary pollutants, and are suitable for the treatment of high, medium and low concentration VOCs waste gas.
Description
technical field [0001] The invention relates to the field of environmental engineering waste gas treatment, in particular to a circulating fluidized bed treatment system and method for purifying waste gas containing VOCs. Background technique [0002] With the rapid development of my country's economy and technology, the continuous improvement of people's living standards, the public's higher and higher requirements for environmental quality, strict control of pollutant emissions, especially the treatment of volatile organic pollutants VOCs exhaust pollutants is imminent. VOCs exhaust gas is divided into high concentration, medium concentration and low concentration VOCs exhaust gas according to the different content of exhaust gas. [0003] Commonly used low-concentration VOCs exhaust gas treatment technologies mainly include adsorption concentration + catalytic combustion, adsorption concentration + RCO, rotor adsorption concentration + RTO, etc.; medium and high-concentra...
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IPC IPC(8): B01D53/12B01D46/02F23G7/06
CPCB01D46/02B01D53/12F23G7/06B01D2257/708B01D2259/40094B01D2259/4009Y02A50/20
Inventor 姚学民冯小刚金国良曹炉刚刘娟
Owner 浙江中兵环保股份有限公司
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