Device for preparing clean coal by thermally decomposing, gasifying and semi-carbonizing waste

A technology of pyrolysis gasification and gasification device, which is applied in the direction of waste fuel, biofuel, direct heating dry distillation, etc., and can solve the problems of reducing thermal efficiency, thermal shock, and shortening the life of semi-carbonization furnaces, etc.

CN108467740APending Publication Date: 2018-08-31李奎范 +4
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2018-08-31

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Abstract

The invention discloses a device for preparing clean coal by pyrolyzing, gasifying and semi-carbonizing a waste. The device comprises a material supply system, a material pre-treatment system, a thermal decomposition and semi-carbonization device, a combustion and gasification device, a food additive addition device, a clean coal cooling and collecting system and a synthesis gas reuse system, wherein the material supply system and the material pre-treatment system are connected, a food additive is arranged in the food additive addition device, both the food additive addition device and the material pre-treatment system are connected with the thermal decomposition and semi-carbonization device, both the synthesis gas reuse system and the thermal decomposition and semi-carbonization device are connected with the combustion and gasification device, and the thermal decomposition and semi-carbonization device is connected with the clean coal cooling and collecting system. The device for preparing the clean coal by pyrolyzing, gasifying and semi-carbonizing the waste is simple in structure, produces the clean coal by fully using the low-grade coal and the agricultural waste, and effectively saves the energy, the surface of the powdered coal is coated with an addition biomass, the combustion efficiency is stable, the gas emission is low, the spontaneous combustion is prevented, and the occurrence of fire and explosion is avoided.
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Description

technical field

[0001] The invention relates to a device for preparing clean coal, in particular to a device for preparing clean coal by pyrolysis, gasification and semi-carbonization of waste. Background technique

[0002] Generally, waste is pyrolyzed and gasified using a horizontal flue gas furnace, a thermal rotary kiln pyrolysis gasifier, an exothermic rotary kiln pyrolysis gasifier with inclined surfaces using high The heat rotates the waste, and when the solid waste is introduced, the waste is pyrolyzed and gasified at high temperature. In this type of thermal rotary kiln, the pyrolysis gasification should be carried out under the condition of anoxic and anoxic, which will produce a certain amount of gas and residue, however, when air is introduced into the cracking gasifier, there is a great risk of fire , high temperature thermal shock, and a risk of explosion.

[0003] Through this thermal rotary kiln pyrolysis gasification furnace, the method of gasifying and ca...

Examples

Embodiment Construction

[0033] The following with attached figure 1 A device for preparing clean coal by pyrolysis, gasification and semi-carbonization of waste according to the present invention will be further described in detail. The percentages in the text are all percentages by weight.

[0034] A device for preparing clean coal by pyrolysis, gasification and semi-carbonization of waste according to the present invention, please refer to figure 1 The relevant figures in the figure include a raw material supply system, a raw material pretreatment system, a pyrolysis semi-carbonization device, a combustion gasification device, a food additive addition device 12, a clean coal cooling collection system and a synthesis gas reuse system 37. The raw material supply system It is connected with the raw material pretreatment system for drying raw materials, and food additives are filled in the food additive addition device 12, and the food additive addition device 12 and the raw material pretreatment syst...