Coal direct-fired machine with coiler and liquid-cooled grate
A direct-fired engine and grate technology, which is applied to the grate of the hollow grate, the combustion of solid fuel, the grate, etc., can solve the problem of easily damaged grate, easily damaged grate welding joints, and insufficient utilization of the furnace temperature and other issues to achieve the effect of increasing service life, reducing the probability of accidents, and reducing maintenance costs
Inactive Publication Date: 2013-06-05
BAOJI HL LEVEL BOILER EQUIP
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Problems solved by technology
The high temperature of the furnace is easy to damage the grate, especially the welding joint of the grate
The furnace temperature is not fully utilized
Method used
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[0019] The invention is a coal-fired direct-fired engine equipped with a coil pipe and a liquid-cooled fire grate. Compared with a traditional direct-fired engine or boiler, the present invention adds a coil heat-absorbing device and a liquid-cooled fire grate, and also changes the The structure of the traditional combustion chamber.
[0020] see figure 1 and image 3 , including a furnace 3, a combustion chamber 4 below the furnace 3, a high-temperature smoke chamber 1 on the side below the combustion chamber 4, a liquid-cooled fire grate 5 with an inclined angle is arranged in the combustion chamber 4, and a side of the combustion chamber 4 is arranged Air inlet 11 and coal inlet 12 are arranged. A coil pipe 2 is arranged above the high temperature smoke chamber 1 . The high temperature smoke chamber 1 is provided with a fire port 6 . A smoke outlet 9 connected to the induced draft fan 10 is arranged above the furnace, and the high-temperature flue gas enters the high-te...
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The invention relates to a coal direct-fired machine with coilers and a liquid-cooled grate. High-temperature heat is effectively absorbed by liquid in the coilers and the liquid-cooled grate, so that heat efficiency of the direct-fired machine is improved, service life of the grate is prolonged, maintenance cost is reduced, and usability is facilitated. The coal direct-fired machine comprises a furnace pipe, a fire chamber is located under the furnace pipe, and a high-temperature smoke chamber is located on one side under the fire chamber. The liquid-cooled grate is arranged in the fire chamber, and the coilers are arranged above the high-temperature smoke chamber. One end of the liquid-cooled grate is provided with a cool liquid inlet, while the other end of the liquid-cooled grate is communicated with the furnace pipe. An inclined angle of the liquid-cooled grate is greater than 1 degree and smaller than 30 degrees, and fire bars are arranged under the liquid-cooled grate. One end of each of the coilers is provided with a cool liquid inlet, while the other end of each of the coilers is communicated with the furnace pipe. The coilers are arranged in groups, and each group of the coilers is formed by a wound metal pipe.
Description
1. Technical field: [0001] The invention relates to a high-efficiency coal-fired direct-fired engine, in particular to a coal-fired direct-fired engine provided with a coil pipe and a liquid-cooled fire grate. 2. Background technology: [0002] In the background technology, the structural design of the combustion chamber of existing boilers, direct-fired engines and other combustion devices does not use coiled tubes, and the grate is made of solid metal, which fails to make full use of the heat of the furnace. The high temperature of the furnace is easy to damage the grate, especially the welding joint of the grate. Furnace temperature is not fully utilized. 3. Contents of the invention: [0003] In order to solve the deficiencies in the above-mentioned background technology, the present invention provides a coal-fired direct-fired engine provided with a coiled pipe and a liquid-cooled grate. The liquid inside the coiled pipe and the liquid-cooled grate effectively absorb...
Claims
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IPC IPC(8): F24H1/44F23B80/04F23H3/02
Inventor 张勤福
Owner BAOJI HL LEVEL BOILER EQUIP