Combined water cooling furnace grate
A water-cooled grate and water-cooled technology, which is applied to the grate, the grate of the hollow grate, lighting and heating equipment, etc., can solve the problems of difficult compliance, low utilization rate, and fuel source in power plants.
Pending Publication Date: 2019-05-03
JINAN BOILER GRP
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Problems solved by technology
Therefore, the first thing to consider when building a biofuel power plant is the fuel risk, that is, the source of the fuel. It is difficult for a single-fuel power plant to meet China's national conditions.
The domestic fuel purchase market is often high-moisture fuel, or even a mixture of multiple fuels, which makes the fuel combustion incomplete in the actual operation of the biomass fuel boiler, and the unburned fuel is discharged from the slag outlet, and the utilization rate is low.
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[0019] The present invention will be further described below through non-limiting embodiments and in conjunction with the accompanying drawings.
[0020] Referring to the accompanying drawings, a combined water-cooled fire grate includes a fire grate and a membrane wall. Both sides of the fire grate are respectively provided with a left water-cooled header and a right water-cooled header. The membrane wall includes a front wall membrane wall, a rear wall The wall film type wall 19, the lower ends of the front wall film type wall and the rear wall film type wall 19 are connected to the left water-cooled header and the right water-cooled header respectively through the lower header 8 of the front wall and the lower header of the rear wall. The fire grate is made up of the fixed fire grate 5 of the front section and the water-cooled vibrating fire grate 11 of the rear section, and the fixed fire grate 5 is higher than the water-cooled vibrating fire grate 11; The lower front wall...
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The invention discloses a combined water cooling furnace grate. The combined water cooling furnace grate comprises a front wall film type wall and a back wall film type wall; a furnace grate body is composed of a fixed furnace grate main body arranged on the front section and a water cooling vibration furnace grate main body arranged on the back section, and the fixed furnace grate main body is higher than the water cooling vibration furnace grate main body; and the front wall film type wall comprises an upper-section front wall film type wall body and a lower-section front wall film type wallbody, and the fixed furnace grate main body and at least one feeding port are arranged between the upper-section front wall film type wall body and the lower-section front wall film type wall body. The fixed furnace grate main body and the water cooling vibration furnace grate main body are both inclined fixed furnace grate main bodies and incline backwards and downwards in the movement directionof fuel; and the fixed furnace grate main body is provided with vent holes, and an air chamber and an ash bucket are arranged under the fixed furnace grate main body. The front-section furnace gratemain bodies are the inclined fixed furnace grate main bodies, the fuel is pushed downwards from the high position, the two furnace grate main bodies have the height difference, the air permeability ofthe fuel is increased in the downward rolling process of the fuel, therefore, full preheating and drying can be achieved, biomass fuel combustion is facilitated, the combined water cooling furnace grate can adapt to combustion of a high-water-content fuel and multiple fuels, the combust-out rate of the biomass fuel is greatly increased, and the combustion efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of biomass fuel boilers, in particular to a biomass fuel boiler with a composite fire grate. Background technique [0002] As a clean and renewable energy source, the utilization of biomass energy has become the consensus of the whole world. Replacing fossil fuels with biomass is an ideal way to reduce CO2 emissions and reduce greenhouse gas emissions. Out of consideration for the environment and energy structure, the state has given policy support and promotion in the use of biomass energy, restricted the construction of small coal-fired units, and approved many biomass fuel power plants, which makes biomass boilers have big market. At present, boilers in biomass power plants mostly use a single vibrating grate, chain grate or reciprocating grate. These combustion forms have special requirements for biomass fuels, such as certain restrictions on the moisture and ash content of the fuel. Too high, but dom...
Claims
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IPC IPC(8): F23H3/02
Inventor 王海峰罗冰孟嫚嫚刘作于照清胡安全
Owner JINAN BOILER GRP