A fluidized bed mixing and feeding equipment for coal and biomass

A technology of feeding equipment and fluidized bed, which is applied in the direction of fluidized bed combustion equipment, lighting and heating equipment, combustion equipment, etc., can solve the problems of poor airtightness of pneumatic feeding, high labor intensity, short service life, etc., and avoid secondary Sub-correction, strong automaticity, anti-clogging effect

Active Publication Date: 2017-08-04
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manual feeding has high labor intensity and high environmental requirements; mechanical feeding is easy to wear and has a short service life; pneumatic feeding has poor sealing performance
The above feeding methods are all based on the set feeding amount. Once the external conditions or working conditions change, it needs to be corrected again.

Method used

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  • A fluidized bed mixing and feeding equipment for coal and biomass
  • A fluidized bed mixing and feeding equipment for coal and biomass
  • A fluidized bed mixing and feeding equipment for coal and biomass

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] A coal and biomass fluidized bed mixing and feeding equipment, which mainly adopts "mechanical and air secondary agitation" to ensure the uniform mixing of materials, and uses "balanced breathing" and "three differential speed screw" for continuous feeding, and adopts " Level gauge" and "PID regulator" for automatic control, such as Figure 1-5As shown, it includes a high-level silo 4, an intermediate silo 11, and a fluidized bed. The high-level silo 4 is connected to the intermediate silo 11 through the first flexible connecting pipe 9, and the mixed material is transported into the The intermediate silo 11; and the intermediate silo 11 is connected with the fluidized bed through a screw machine 13; the intermediate silo 11 is connected with the screw machine 13 through a second flexible connecting pipe, and the screw machine 13 is connected with the fluidized ...

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Abstract

The invention discloses a fluidized bed mixing and feeding equipment for coal and biomass, comprising a high-level silo (4), an intermediate silo (11), a fluidized bed, an air recoil device (7), and a solenoid valve (8) , material balance device (10), material level meter (12), screw machine (13), the interior of high-level feed bin (4) is provided with coal feed channel (5), rotating support, and described screw machine (13) is three The differential speed screw machine also includes a PID control system, and the PID control system includes an electromagnetic governor (14), a PID regulator (15), a differential pressure transmitter (17), and a temperature sensor (18). The invention not only realizes continuous, stable and uniform automatic feeding of coal and biomass dual materials, facilitates co-combustion of the fluidized bed, but also effectively reduces coal consumption rate and pollutant discharge.

Description

technical field [0001] The invention relates to a comprehensive utilization device of coal and biomass in a fluidized bed, which belongs to the field of energy and environment. Background technique [0002] The increasing consumption of fossil fuels not only leads to the scarcity of energy resources, but also exacerbates environmental degradation. In order to change the current situation of unreasonable energy consumption structure, it is necessary to vigorously develop renewable resources and clean energy other than fossil fuels. Biomass, as a clean energy, will never produce a large amount of sulfur dioxide and nitrogen oxides during the utilization process, which will help alleviate the increasing environmental problems and greenhouse effect. Among them, the co-combustion of coal and biomass in a fluidized bed is a method of comprehensive utilization of coal and biomass, which combines the advantages of separate combustion of coal and biomass, and can effectively reduce ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23C10/22
Inventor 仲兆平郭飞宏王恒薛则禹张金王肖祎王泽宇
Owner SOUTHEAST UNIV
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