Hot flue gas bidirectional firing, high anthrax adaptability and variable load honeycomb type coal boiler

A hot flue gas and adaptive technology, applied in the boiler field, can solve the problems of boiler manufacturing cost and boiler floor area increase, inflexible load adjustment of briquette boilers, and difficulty in large-scale briquette boilers, etc., to achieve effective grate Area saving, saving equipment investment and floor area, wide adaptability of coal quality effect

Inactive Publication Date: 2009-12-02
袁福林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the following problems: the hot flue gas in the furnace is ignited from top to bottom after the new coal is ignited into the furnace, and the flue gas produced directly enters the next stage of heating surface cooling to produce black smoke from the boiler, and the tail heating surface condenses coal Tar blocks the heating surface pipes, and the thermal efficiency of the boiler decreases; the desulfurization efficiency in the furnace is not high; the load adjustment of the briquette boiler is not flexible; the boiler manufacturing cost and the boiler floor area increase caused by the slow combustion of briquette coal; the briquette boiler is not easy to be large-scale

Method used

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  • Hot flue gas bidirectional firing, high anthrax adaptability and variable load honeycomb type coal boiler
  • Hot flue gas bidirectional firing, high anthrax adaptability and variable load honeycomb type coal boiler
  • Hot flue gas bidirectional firing, high anthrax adaptability and variable load honeycomb type coal boiler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] When used for steam boilers, it includes: bottom seat 6; connected to bottom seat 6 are front furnace door 5, rear furnace door 12, furnace wall 18, smoke partition wall 9 under the water-cooled grate, and horizontal smoke partition at the lower part of the convection header Wall 54, left air chamber flow-adjustable air inlet door 11, right air chamber air inlet door 20; the steam boiler is placed along the air-tight drainage grate pipe 39 to connect the steam boiler water-cooled grate front horizontal header 36 and the steam boiler water-cooled grate The central horizontal header 35 is connected together; the gas boiler is placed in parallel with the thin water cooling grate pipe 44 to connect the steam boiler water-cooled grate middle horizontal header 35 and the steam boiler water-cooled grate rear horizontal header 34 together; the right steam boiler There is a smoke outlet door 8 at the lower part of the right side dense drain cooling grate pipe 39; The smoke door ...

Embodiment 2

[0038] When used for hot water boilers, it includes: bottom seat 6; connected with bottom seat 6 are front furnace door 5, rear furnace door 12, furnace wall 18, smoke partition wall 9 under water-cooled grate, horizontal partition at the lower part of convection header The smoke wall 54, the flow-adjustable air inlet door 11 of the left air chamber, and the air inlet door 20 of the right air chamber; The horizontal header 47 in the row is connected together; the horizontal header 47 of the water furnace water-cooled grate and the rear horizontal header 48 of the water furnace water-cooled grate are connected together by the water boiler with the thin water cooling grate pipe 53; The furnace is placed in parallel with the dense drain cooling furnace grate pipe 51, and the right side dense drain cooling furnace grate is equipped with a smoke outlet door 8; The smoke inlet door 7; the right furnace is provided with the right furnace arch 19; the left furnace is provided with the...

Embodiment 3

[0044] The left hearth is provided with a left hearth arch 19; the right hearth is provided with a right hearth front arch 4 and a right hearth rear arch 10; the others are the same as in Embodiment 1.

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Abstract

A honeycomb type coal boiler with hot flue gas bidirectional ignition, high-rank coal adaptability and variable load belongs to the boiler technical field, in particular relates to stream for burning honeycomb type coal and a hot-water boiler. A right hearth of the invention is provided with a right side hearth hogging; the left hearth is provided with a left side hearth face arch and a left side hearth rear arch; the structures of the left hearth and the right hearth are asymmetrical; the flue gas channels of the left hearth and the right hearth are also asymmetrical; the invention adopts the mode that the hot flue gas downwards the right hearth and upwards the left hearth ignites bituminous coal in the boiler; the invention solves the following problems that: 1. After the whole hot flue gas is downward to ignite the bituminous coal in the boiler, the flue gas directly enters to the subordinate heating surface for cooling and causes the problems that black smoke is emitted from the boiler, coal tar is condensed from the tube wall of the tail heating surface condenses and causes the block, the shut down of the boiler and the decrease of the thermal efficiency; 2. The desulphurization degree in the coal boiler is low; 3. The coal boiler has poor load adjusting performance; 4. The coal has slow burning speed, high manufacturing cost and large occupied area; 5. The coal boiler is uneasy to be large-sized. The invention has the advantages of higher burning efficiency, stronger coal-rank adaptability, better environmental protection and more reliable operation.

Description

technical field [0001] The invention belongs to the technical field of boilers. It specifically relates to a steam boiler and hot water boiler burning honeycomb briquettes, the international patent classification number: F23B 1 / 00. Background technique [0002] Since the honeycomb briquette has been added with desulfurizer during the manufacturing process, and it is not loose after burning, the boiler burning honeycomb briquette does not need to add dust collector and desulfurization device, and the dust concentration and sulfur dioxide concentration of the flue gas discharged can meet the requirements. GB13271 "Boiler Air Pollutant Emission Standard" requirements. In some urban areas, it is allowed to use briquette-fired coal boilers, and the fuel cost of briquette-fired boilers is only about one-half of gas-fired boilers, one-fourth of oil-fired boilers, and one-sixth of electric boilers . Therefore, coal-fired boilers have broad market prospects. Since the specific su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H1/40F24H9/18F22B17/00
Inventor 袁福林毕耀柏
Owner 袁福林
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