Chain grate boiler with full-coverage front arch

A chain grate and full coverage technology, applied in the boiler field, can solve the problems of boiler output drop, low boiler combustion efficiency, and high volatile matter

Inactive Publication Date: 2012-11-28
哈尔滨工大格瑞环保能源科技有限公司
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the fact that the existing chain grate boiler cannot adapt to burning low-quality raw coal with high volatile content and l

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
  • Chain grate boiler with full-coverage front arch
  • Chain grate boiler with full-coverage front arch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The best embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings. The chain grate boiler with a fully covered front arch includes a chain grate 1, a coal hopper 2, a secondary air duct 3 connected to the air supply duct 10, a fully covered front arch 4, a smoke guiding arch 7, and 10 Boiler body provided on the upper part, including the left side convection tube bundle flue 8 and the right side convection tube bundle flue 9.

[0008] When the boiler is running, the raw coal in the coal hopper 2 falls on the chain grate 1, and enters the lower part of the full-coverage front arch 4 along with the chain grate 1 moving from front to back. Under the heat radiation of the front arch 4, the surface of the coal seam will be ignited and burned rapidly. The outlet of the fully covered front arch 4 at the rear of the furnace is drawn out, thus ensuring that the coal seam of the entire chain grate at the lower part of th...

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 relates to a chain grate boiler with a full-coverage front arch. The boiler comprises a chain grate, a coal hopper, a full-coverage front arch arranged in a hearth from front to back, a combinational secondary air spray pipe arranged on the side wall of the hearth at the lower part of the full-coverage front arch and a smoke guide arch for guiding the high-temperature smoke gas to the upper hearth. After entering the hearth along with the grate, raw coal is on fire rapidly under heat radiation of the full-coverage front arch, flame and high-temperature smoke gas generated during combustion of raw coal crosses over from front to back along the coal bed of the whole chain grate and flows out from an outlet at the rear part of the hearth so that the coal bed on the whole chain grate at the lower part of the full-coverage front arch is in a high-temperature state, and high combustion efficiency is realized. At the same time, air fed from a blower is sprayed over the coal bed at the lower part of the long front arch through the combinational secondary air spray pipe, so that the situation that the volatile matter of raw coal generates black smoke due to oxygen deficiency in the combustion process can be avoided.

Description

technical field [0001] The invention relates to the field of boilers, in particular to a chain grate boiler with a fully covered front arch. Background technique [0002] At present, the chain grate boiler adopts a combined furnace arch structure with a short front arch and a long rear arch, and the front arch is higher than the rear arch. For some low-quality raw coal with high volatile content and low carbon content, after the volatile content is burned out, the combustion of the remaining carbon particles is not enough to ensure that the furnace under the rear arch has a high temperature, and it is impossible to realize the ash in the ash. The carbon particles are continuously and efficiently burned in the furnace under the rear arch, resulting in high carbon content in the ash, which cannot guarantee the normal output of the boiler, and also greatly reduces the thermal efficiency of the boiler. Chain grate boiler is a widely used boiler type, its operating energy consum...

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): F23B30/08F23M5/06
Inventor 董芃
Owner 哈尔滨工大格瑞环保能源科技有限公司
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