Temperature control method for fixed bed gasification furnace oxidation zone and gasification furnace

A fixed-bed gasifier and oxidation zone technology, applied in the field of coal gasification, can solve the problem of steam waste

Inactive Publication Date: 2009-07-22
刘宏建 +1
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the purpose of the present invention is to provide a fixed bed gasifier oxidation zone temperature control method and

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Temperature control method for fixed bed gasification furnace oxidation zone and gasification furnace
  • Temperature control method for fixed bed gasification furnace oxidation zone and gasification furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Below in conjunction with accompanying drawing and embodiment wooden invention is described in further detail.

[0017] The method for controlling the temperature in the oxidation zone of the fixed bed gasifier according to the present invention, the water is sent to the middle and lower part of the oxidation zone in the furnace through the water inlet pipe on the side of the lower part of the gasifier, and the heat is absorbed in the middle and lower part of the oxidation zone in the form of atomization And vaporization, so that the temperature of the oxidation zone is controlled below the ash melting point of the raw coal.

[0018] Such as figure 1 , 2 Shown: the fixed-bed gasifier, which includes a furnace body with a water jacket 11, a coal inlet 1, a crude gas outlet 2, an ash outlet 9, and a grate 7, and the top of the furnace body is a coal inlet 1 , the bottom end is the ash discharge port 9, the furnace body is the furnace 12, the bottom of the furnace 12 is ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the gasification technical field, which discloses a fixed bed gasifier oxidation zone temperature control method; water is delivered to the lower part of the oxidation zone in the hearth through an inlet tube on the side face of the lower part of the gasifier, and is vaporized by absorbing heat at the lower part of the oxidation zone in an atomization way, so that the temperature in the oxidation zone is controlled below the ash fusion point of the coking coal; and a fixed bed gasifier is to implement the above method; a spraying temperature control device is arranged between the lower part of the oxidation zone in the hearth and the ash zone; the water sprayed from the annular spraying pipe of the spraying temperature control device is gasified by absorbing the heat, thus reducing the steam dosage of the gasification agent; the gasifier has simple structure, easy operation, energy conservation and environmental protection, and is applicable to systems of coal gasification power generation, coal gasification for urban gas preparation, chemical synthesis, etc.

Description

technical field [0001] The invention belongs to the technical field of coal gasification, in particular to a method for controlling the temperature of an oxidation zone of a fixed-bed gasification furnace and the gasification furnace. Background technique [0002] At present, both the atmospheric pressure fixed bed gasifier and the pressurized fixed bed gasifier (Lurgi furnace) use steam / oxygen or air as the gasification agent, coal is added from the coal inlet on the top of the gasifier, and the gasification agent is After the bottom of the gasification furnace enters the grate, it enters the gasification furnace through the pores of the grate cloth, and the coal is in countercurrent contact with the gasification agent, and the coal passes through the drying and preheating zone, the dry distillation layer, and the gasification zone of the gasifier from top to bottom. (reduction zone), combustion zone (oxidation zone), ash layer, and finally ash is discharged out of the furn...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C10J3/20
CPCY02E20/18Y02P20/10
Inventor 刘宏建高恒刘晨希
Owner 刘宏建
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap