Heat accumulating type external hot coal middle-low temperature pyrolysis furnace

A low-temperature pyrolysis and regenerative technology, used in coke ovens with vertical carbonization chambers, coke ovens, special forms of dry distillation, etc., can solve the problems of low gas calorific value, reduced lump coal ratio, and high operating costs. The effect of high calorific value of gas

Inactive Publication Date: 2011-12-07
李来广
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Large-scale mechanized coal mining makes it difficult to ensure that the lumpiness of coal materials can meet the requirements for the lumpiness of the process, which greatly reduces the ratio of lump coal after sieving raw coal, and some pulverized coal rates are as high as 40%. The utilization of coal The efficiency is only 60...

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
  • Heat accumulating type external hot coal middle-low temperature pyrolysis furnace
  • Heat accumulating type external hot coal middle-low temperature pyrolysis furnace
  • Heat accumulating type external hot coal middle-low temperature pyrolysis furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Following accompanying drawing, the present invention is described further:

[0017] Such as figure 1 As shown, a regenerative external thermal coal medium-low temperature pyrolysis furnace is characterized in that it includes a combustion chamber 1, and a carbonization chamber 2 arranged in parallel with the combustion chamber 1, the carbonization chamber 2 and the coal preheating bin 3 on the top connect.

[0018] Such as figure 2 As shown, the end of the combustion chamber 1 is arranged at intervals from bottom to top with regenerators 6, and regenerators 7 are arranged in the regenerators 6; The chamber 1 is provided with a clean gas inlet 5 .

[0019] The heat storage body 7 is made of high alumina, mullite or corundum.

[0020] The combustion chamber 1 is provided with a reinforcement structure 8, the reinforcement structures 8 are arranged in a staggered manner, the reinforcement structure 8 plays a role in supporting the combustion chamber 1 in the combusti...

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 discloses a heat accumulating type external hot coal middle-low temperature pyrolysis furnace. The pyrolysis furnace is characterized in that a carbonization chamber (2) is isolated from air; the temperature of the carbonization chamber (2) is controlled to 500-800 DEG C by virtue of heat transferred from a heat accumulating type rapid-reversing high temperature air combustion chamber 1 in order to heat coal so as to continuously produce a solid fuel or semicoke; all of generated gas is the volatile of the coal, thus the gas has a high heat value; and after being purified, a part of generated gas returns back to the furnace to be used as the heat source of the pyrolysis furnace, and the rest part of gas is discharged. According to the invention, a heating technology of heat accumulating type rapid-reversing high temperature air combustion is introduced; the pyrolysis furnace disclosed by the invention has the advantages of high heat efficiency and simple furnace body structure; and co-production of high-quality solid fuel or semicoke, gas and tar is achieved, and the high-altitude emission of smoke generated by heating the gas meets a national environmentally-friendly standard.

Description

technical field [0001] The invention relates to a vertical pyrolysis furnace with a heat storage type fast-reversing high-temperature air combustion chamber, in particular to a heat storage type external heat coal medium-low temperature pyrolysis furnace. Background technique [0002] Coal pyrolysis technology has been well developed in Europe as early as the beginning of the 20th century. Coking is the field of coal processing and the industry with the most mature coal pyrolysis technology and the largest processing volume. Coal coking is a process in which coal is heated from the outside to a high temperature of 950-1050°C for high-temperature dry distillation and pyrolysis under the condition of isolating the air. However, the raw materials used in coal coking are limited to caking bituminous coal, and non-caking coal is not suitable. [0003] In recent years, a number of semi-coke (semi-coke) plants using long-flame coal and non-sticky or weak-viscosity gas coal as raw...

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): C10B3/02C10B53/04C10B53/08
Inventor 李来广
Owner 李来广
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