Low-heat value gas combustion device

A technology of low calorific value coal gas and coal gas, which is applied in the direction of fuel burning in a molten state, combustion method, combustion type, etc., can solve problems such as insufficient utilization, blockage of combustion nozzles, and coking of the furnace body, so as to avoid excessive local temperature and increase Participate in combustion and prevent clogging of burners

Inactive Publication Date: 2011-02-16
中冶葫芦岛有色金属集团有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages that the existing low calorific value gas cannot be fully utilized, the nozzle is blocked during the combustion process, and the furnace body is coked, the present invention proposes a device for burning low calorific value gas
The device solves the technical problems of burning nozzle clogging, coking of the membrane wall of the furnace body and combustion control through dust removal and separation and gas supply and combustion at the front, rear and left and right sides of the circulating fluidized bed boiler

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
  • Low-heat value gas combustion device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Lead out a low calorific value gas pipeline (φ800mm) at the outlet of the gas pressurizer, and lay it overhead to the vicinity of the circulating fluidized bed boiler.

[0025] 2. Set up a safety venting device at a safe location away from the boiler room.

[0026] 3. The low calorific value gas is separated through the dust separator.

[0027] 4. One burner is installed on the front, rear and left and right sides of the boiler respectively, and a total of 4 burners are installed on the water wall of the boiler. Install the matching air pipeline at the secondary air inlet position of the original boiler, and install the sealing box, carbon monoxide alarm device and fire extinguishing protection device on the gas burner at the same time.

[0028] 5. The valves used in the low calorific value gas combustion system are all electromagnetic globe valves, among which the gas distribution valve, the control gas source connection valve and the gas supply valve are electroma...

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 low-heat value gas combustion utilizing method. Low-heat value gas is supplied to a dust separator by a gas input pipeline, a gas valve, an emptying device, a gas stop control valve and a gas-distributing valve; dust and gas are separated, and separated suspended substances are discharged by a floating dust sinking discharge valve; the obtained pure low-heat value gas is supplied to a combustor arranged in a circulating fluidized bed boiler by a control gas source connecting valve and a gas supply valve for combustion and heat supply; and gas ducts which are respectively led from the gas-distributing valve, the control gas source connecting valve and the gas supply valve are communicated with an automatic gas flow control device for adjusting and controlling thegas flow amounts of different routes. The method can prevent a combustion nozzle from being blocked, uniformizes heated surfaces, can avoid a partial overhigh temperature phenomenon, achieves the effect of together burning the low-heat value gas with general fuel and is suitable for being used in the field utilizing the combustion and the heat of the low-heat value gas.

Description

technical field [0001] The invention relates to a device for co-combusting low calorific value coal gas in a circulating fluidized bed boiler and making full use of its heat, in particular to a device for burning low calorific value coal gas. Background technique [0002] Low calorific value gas is produced in the process of nonferrous metallurgy production, and its calorific value is 800-1000kcal / Nm 3 . At present, the domestic non-ferrous metallurgical enterprises have the following devices for processing low calorific value gas: a certain enterprise collects the part of low calorific value gas generated by ISP into φ=800mm pipeline (P=5600Pa t<40℃ dust content<40mg / Nm 3 ), the pipes are connected to the burners and enter the three steam power boilers of the self-provided power plant for mixed combustion; the second device is used in the processes of concentrate drying kiln, coke preheater, hot blast stove, etc., and the remaining part is exhausted Empty; the third...

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
Patent Type & Authority Patents(China)
IPC IPC(8): F23C10/00F23C10/18F23C10/28C10K1/02
Inventor 郭天立朱威张维林里佐敬
Owner 中冶葫芦岛有色金属集团有限公司
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