A pulverized coal boiler soot blowing system
A technology of soot blowing system and pulverized coal boiler, which is applied in the directions of combustion product treatment, combustion method, lighting and heating equipment, etc., can solve the problems of high temperature melting of soot blowing tube furnace and reduce original emission value, etc. Wall temperature, the effect of reducing the amount of NOx generation
Active Publication Date: 2018-06-12
JIANGSU SHUANGLIANG BOILER
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a pulverized coal boiler soot blowing system for the above-mentioned prior art, which can solve the problem of high temperature melting in the soot blowing tube furnace, and effectively reduce NO x Raw emission value
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Embodiment Construction
[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0048] Such as Figure 1~Figure 5 As shown, a pulverized coal boiler soot blowing system in this embodiment includes a boiler 13, the head of the boiler 13 is provided with a burner 14, and the burner 14 is provided with a tertiary air inlet 1, and the boiler 13 The tail part is connected with the dust collector 7, the induced draft fan 8 and the chimney 9 in sequence through the flue gas pipeline 10, and the flue gas pipeline 10 between the induced draft fan 8 and the chimney 9 is connected to the tertiary fan 11 through the connecting pipeline 15 The air outlet of the tertiary fan 11 is connected to the tertiary air main pipe 12, the left and right sides of the furnace of the boiler 13 are respectively provided with a furnace tertiary air main pipe 2 and a soot blowing main pipe 6, and the furnace tertiary air main pipe 2 and The soot blowi...
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The invention relates to a soot blowing system of a pulverized coal boiler. The system comprises the boiler (13), a combustor (14) is arranged on the head of the boiler (13), a tertiary air inlet (1) is formed in the combustor (14), a dust remover (7), an induced draft fan (8) and a chimney (9) are sequentially arranged on the tail of the boiler (13), a tertiary fan (11) is connected between the induced draft fan (8) and the chimney (9), and an outlet of the tertiary fan (11) is connected with a tertiary air mother pipe (12); a hearth tertiary air mother pipe (2) and a soot blowing main pipe (6) are arranged in a hearth of the boiler (13), the tertiary air mother pipe (12) is connected with the hearth tertiary air mother pipe (2) and a tertiary air inlet (1), hearth tertiary air branch pipes (3) are arranged on the hearth tertiary air mother pipe (2), and a hearth soot blowing device (4) and a convection soot blowing device (5) are arranged on the soot blowing main pipe (6). The soot blowing system of the pulverized coal boiler can solve the problem that a soot blowing pipe in a hearth is molten due to high temperature, and the original emission value of NOx is effectively reduced.
Description
technical field [0001] The invention relates to a soot blowing system for a pulverized coal boiler, which is especially suitable for the soot blowing system of an environmental protection industrial pulverized coal boiler, and is mainly used for blowing and collecting fly ash on the furnace and convective heating surface of the boiler. Background technique [0002] The resource characteristics of my country's rich coal, poor oil and little gas determine that coal is the main energy source. For a long period of time in the future, the status of coal as the main energy source will not change. With more than ten years of research and development and practice in my country, the development of pulverized coal industrial boilers has made great progress. Pulverized coal industrial boilers use high-quality, high-activity clean pulverized coal as fuel, which is a backup or substitute for natural gas boilers. Its essential attributes include cleanliness and sanitation, friendly workin...
Claims
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IPC IPC(8): F23C7/02F23C9/00F23J1/00F23J3/00
CPCF23C7/02F23C9/00F23C2202/30F23J1/00F23J3/00F23J2215/10F23J2700/002
Inventor 杨戈王康王莹苗世豪黄智超
Owner JIANGSU SHUANGLIANG BOILER