Exhaust gas treatment system and usage method thereof

A technology for waste gas treatment and waste gas, applied in separation methods, chemical instruments and methods, and separation of dispersed particles, can solve problems such as poor efficiency of dioxins, inability to effectively remove dioxins, and excessively increased cost of activated carbon, etc., to achieve Effects that increase likelihood, increase efficiency, and increase the chance of collisions

Inactive Publication Date: 2012-10-10
SUPER MAX ENG ENTERPRISE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, because activated carbon is injected into the activated carbon pipeline and flows through the pipeline in a steady flow, the efficiency of activated carbon to adsorb dioxins in the exhaust gas is not good, so even if an excessive amount of activated carbon is used, the gaseous state in the exhaust gas cannot be effectively removed. dioxins, and the cost of activated carbon

Method used

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  • Exhaust gas treatment system and usage method thereof
  • Exhaust gas treatment system and usage method thereof
  • Exhaust gas treatment system and usage method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] see figure 1 As shown, this embodiment provides an exhaust gas treatment system 1, which includes a circulating fluidized bed semi-dry acid removal device 10 (circulating fluidized bed semi-dry scrubber equipment), an inert substance 20, an activated carbon adsorption device ( active carbon absorber equipment, ACAE) 30, and a bag dust collector 40.

[0064] The above-mentioned circulating fluidized bed semi-dry acid removal device 10 includes a reactor 11, a cyclone dust collector 12 connected with the reactor 11, a cyclone dust collector 12 connected with the reactor 11 and the cyclone dust collector 12 The circulating storage tank 13 and an alkali agent injection device 14 connected to the reactor 11, the reactor 11 can be used to input a waste gas, and the alkali agent injection device 14 can be used to input an alkali agent.

[0065] The above-mentioned inert substance 20 is contained in the circulating storage tank 13 and is sand with a particle size of 0.2 millim...

Embodiment 2

[0069] see figure 2 As shown, this embodiment provides an exhaust gas treatment system 1, which is different from the above-mentioned embodiments in that the inner wall of the delivery pipe 31 is provided with a plurality of spoiler structures 312, such spoiler structures 312 are bumps, and The channel cross-sectional area of ​​the conveying pipe 31 with the bump is smaller than the passage cross-sectional area of ​​the conveying pipe 31 in the other part.

Embodiment 3

[0071] see image 3 As shown, the present embodiment provides a state of use when the exhaust gas treatment system 1 is installed in an incinerator. The circulating fluidized bed semi-dry acid removal device 10 is connected to a boiler 60 through a conduction pipe 50, and a The induced fan 70 is connected with the bag dust collector 40 , and a chimney 80 is connected with the induced fan 70 .

[0072] see Figure 4 As shown, the method for using the waste gas treatment system 1 provided by this embodiment is as follows: prepare the above-mentioned incinerator equipped with the waste gas treatment system 1 of this embodiment, and inject the sand located in the circulating storage tank 13 with a wind speed of 6 to 10 km feet per second (m / s) and a reactor 11 with a temperature of about 140°C to 180°C, the sand is circulated in the reactor 11, the cyclone dust collector 12 and the circulation storage tank 13, wherein the amount of sand added is The pressure loss of the circulat...

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Abstract

The invention provides an exhaust gas treatment system and a usage method thereof. The exhaust gas treatment system comprises circulating fluidized bed semi-dry scrubber equipment and an inert material provided within the circulating fluidized bed semi-dry scrubber equipment. The exhaust gas treatment system of the invention adopts the design of containing the inert material within the system. When the exhaust gas treatment system is in use, the inert material and an alkali agent form a fluidized dioxin-removal composition. A longstanding problem that the alkali agent sticks on the inner wall of a reactor when a gas suspension absorber (GSA) is applied for exhaust gas treatment is solved. Practical operation possibility of the GSA and the alkali agent in combination for acid gas removal is improved. In addition, what is proved is that the purpose of effectively removing the gas phase dioxin from the exhaust gas is achieved by using the fluidized dioxin-removal composition.

Description

technical field [0001] The invention relates to a waste gas treatment system, especially a high-efficiency system for treating gaseous dioxins in waste gas. The invention also relates to methods of using said exhaust gas treatment system. Background technique [0002] Colorless and odorless dioxin is the poison of the century. It is produced in the exhaust gas caused by combustion. Dioxin exists in animals or fruits and vegetables, and then enters the human body through the food chain and is absorbed by the human body, causing many liver, Immune system, muscle and joint pain, miscarriage, deformed children, visual impairment and other diseases, so dealing with dioxins is one of the most attention-grabbing issues now [0003] The exhaust gas produced by incinerators or other combustion systems contains acid gases and toxic dioxin gases. Generally, alkaline agent absorption towers are used to remove acid gases, and activated carbon is used to absorb dioxins, and then the bag ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/83B01D53/96B01D53/70B01D53/06B01D46/02
Inventor 翁梓斌
Owner SUPER MAX ENG ENTERPRISE
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