Coal gasification burner device
A technology of process burner and coal gasification, which is applied in the direction of granular/powder fuel gasification, injection device, liquid injection device, etc., can solve the problems of shortening the service life of refractory bricks, over-oxygenation of the gasifier vault, and excessive wall temperature. , to achieve the effect of eliminating gaps, extending service life and ensuring concentricity
Active Publication Date: 2013-05-29
YANKUANG GRP CO LTD
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Problems solved by technology
The uneven spraying of coal slurry will directly affect the operating cycle of the burner, and more seriously, it will also cause relative overoxygen on the vault of the gasifier, which will reduce the life of the refractory brick and cause problems such as excessive wall temperature, which will affect the economic benefits of the enterprise
Method used
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[0022] The present invention will be further described below in conjunction with the drawings and embodiments.
[0023] Such as Figure 3-6 As shown, a coal gasification process burner includes a central oxygen burner 3, a coal slurry burner 2 and an outer epoxy burner 1. The central oxygen burner 3 is uniformly positioned on the outer circle of the original central oxygen support block 4 Four central oxygen support block devices are welded. Each of the central oxygen support block devices includes a rectangular frame 7 fixed on the outer circle of the central oxygen burner. The rectangular frame 7 is bonded with a phase transition temperature of 38-40 ℃ shape memory alloy support block 6; in the cold state, the shape memory alloy support block 6 is arc-shaped, and there is a gap of 0.1-0.3mm between the upper end and the inner wall of the coal slurry burner; when working, the shape memory alloy supports The upper end of the block is in close contact with the inner wall of the c...
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Abstract
The invention discloses a coal gasification burner device. The coal gasification burner device comprises a center oxy-fuel burner and a coal slurry burner. Multiple center oxy-fuel burner supporting block devices are arranged on the outer periphery of the center oxy-fuel burner. Each one of the center oxy-fuel burner supporting block devices comprises a rectangular frame fixed on the outer periphery of the center oxy-fuel burner. A shape memory alloy supporting block with a phase-transition temperature of 38 to 40 DEG C is bonded in the rectangular frame. The shape memory alloy supporting block is cambered under a cold condition and there is a gap between an upper end of the shape memory alloy supporting block and an inner wall of the coal slurry burner. During working, the upper end of the shape memory alloy supporting block contacts tight with the inner wall of the coal slurry burner. Through the coal gasification burner device, a gap produced in operation is eliminated; concentricity is guaranteed; coal slurry or coal powder can be sprayed uniformly; and service lives of burners and firebricks such as a firebrick located at a vault of a gasification furnace are prolonged.
Description
technical field [0001] The invention relates to a coal gasification device, in particular to a coal gasification process burner. Background technique [0002] The structure of the currently disclosed coal gasification process burner is composed of a central oxygen burner 3, a coal slurry burner 2 and an outer epoxy burner 1. The central oxygen burner is welded with a central oxygen support block 4 (such as figure 1 , 2 As shown), in order to ensure the installation needs, the center oxygen support block 4 and the coal slurry burner 2 should be assembled with a gap during design. Usually, the gap is changed to 0.1~0.3mm. In the working state, because the center oxygen burner 3 Under the action of gravity or coal slurry pressure, it usually leans against the bottom fulcrum, which causes the central oxygen burner 3 and the coal slurry burner 2 to have a non-concentricity problem, resulting in a semicircular coal slurry injection at the coal slurry outlet end. The amount of co...
Claims
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IPC IPC(8): C10J3/50C10J3/48B05B7/06B05B15/00
Inventor 叶盛芳张永祥颜芳芮胜波孙淑杰张文洪
Owner YANKUANG GRP CO LTD