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Green calcining equipment, system and process for producing gel materials from bulk solid waste

A gel material and calcination technology, applied in the field of environmental science, can solve problems such as system equipment and environmental impact, and achieve the effect of reducing the content of harmful components, eliminating the impact of production and operation stability, and solving the problem of SO2 emissions

Active Publication Date: 2021-03-19
TIANJIN CEMENT IND DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, bulk solid waste contains harmful components such as sulfur, chlorine, and alkali. If it is directly used or not processed, the reaction will adversely affect the system equipment and the environment.

Method used

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  • Green calcining equipment, system and process for producing gel materials from bulk solid waste
  • Green calcining equipment, system and process for producing gel materials from bulk solid waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A kind of green calcining equipment that utilizes bulk solid waste to produce gel material, said green calcining equipment that utilizes bulk solid waste to produce gel material includes gel material generating equipment and desulfurization equipment, said gel material generating equipment includes decomposition furnace 6 , the desulfurization equipment includes a desulfurization reactor 2, and the decomposition furnace 6 communicates with the desulfurization reactor 2 through a desulfurization agent delivery pipeline 21.

[0059] The desulfurization delivery pipeline 21 is connected to the upper column of the decomposition furnace 6, and the desulfurization agent delivery pipeline 21 is provided with a valve C22. The CaO produced by pyrolysis of the raw meal 1 in the calciner has desulfurization activity, and is fed into the desulfurization reactor 2 through the desulfurizer delivery pipeline 21 to absorb the sulfur dioxide produced by the solid waste raw meal in the pr...

Embodiment 2

[0063] The invention also discloses a supporting calcining system for realizing the above-mentioned green calcining process. The system includes three parts: gel material generating equipment, desulfurization equipment and bypass ventilation equipment. Gel material generating equipment includes preheater, calciner 6, smoke chamber 7, sintering kiln 8, cooler 9 and tertiary air pipe 12; desulfurization equipment includes desulfurization agent delivery pipeline and desulfurization reactor; bypass ventilation equipment includes quenching and dust collectors. The present invention can solve the problem of SO in the calcined flue gas while preparing the active gel material. 2 Solve the problem of high content of sulfur, chlorine, alkali and other components in emissions and solid waste, and realize green production.

[0064] A green calcining system for producing gel material by utilizing bulk solid waste, the green calcining system for producing gel material by utilizing bulk sol...

Embodiment 3

[0081] A green calcination process for producing gel material by utilizing bulk solid waste, characterized in that: the green calcination process for producing gel material by utilizing bulk solid waste uses the process for producing gel material by utilizing bulk solid waste described in any one of the above Green calcination system, the green calcination process of producing gel material by utilizing bulk solid waste includes a gel material generation process, and the gel material generation process is as follows:

[0082] Step 1: After the bulk solid waste is separated from gas and solid by several stages of preheaters, it is fed into the decomposition furnace, and the temperature of the decomposition furnace is 800-1000°C;

[0083] The temperature of the calciner is controlled at 800-1000°C by controlling the amount of fuel fed into the furnace, and the carbonate in the material is decomposed to obtain CaO.

[0084] Step 2: Part of the material decomposed by the calciner e...

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PUM

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Abstract

The invention belongs to the field of environmental science, and particularly relates to green calcining equipment, system and process for producing a gel material by using massive solid wastes. The green calcining equipment for producing the gel material by using the massive solid wastes comprises gel material generation equipment and desulfurization equipment, wherein the gel material generationequipment comprises a decomposing furnace; the desulfurization equipment comprises a desulfurization reactor; and the decomposing furnace communicates with the desulfurization reactor through a desulfurizing agent conveying pipe. According to the green calcining equipment, system and process for producing the gel material by using the massive solid wastes, while the active gel material can be produced, the problem of emission of SO2 of calcination flue gas can be solved, the contents of harmful components in a calcination system are reduced, and the production and running stability is improved.

Description

technical field [0001] The invention belongs to the field of environmental science, and in particular relates to a green calcining equipment, system and process for producing gel materials from bulk solid waste. Background technique [0002] Existing techniques and drawbacks: [0003] With the rapid improvement of industrial technology and living standards, the output of solid waste such as municipal sludge, mineralized waste, domestic waste incineration ash, red mud, desulfurized gypsum, fly ash, coal gangue, and slag has increased rapidly. The environment has caused a great burden, so the harmless treatment and comprehensive utilization of these bulk solid wastes has become one of the environmental protection issues that need to be solved urgently. [0004] At present, there are three main methods of solid waste treatment in my country: composting, incineration, and landfill. The purpose of solid waste treatment is to achieve "harmless, reduced, and resourceful". Howeve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/00B01D53/81B01D53/50C04B7/44C04B7/24F27D17/00B01D53/00
CPCB01D53/002B01D53/508B01D53/81B01D2257/302B01D2258/0283B01J13/0052C04B7/24C04B7/44F27D17/008Y02P40/10
Inventor 胡芝娟何小龙林敏燕陈昌华彭学平
Owner TIANJIN CEMENT IND DESIGN & RES INST
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