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Technical Note Studies of the effect of a coal concentrator on NO formation in swirling coal combustion Y. Zhang a,*, L.X. Zhou b, X.L. Wei a, H.Z. Sheng a a Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, PR China b The State Key Laboratory of Clean Coal Combustion, Tsinghua University, Beijing 100084, PR China Received 13 August 2004; received in revised form 8 .

A pulverized coal concentrator for a pulverized coal burner, the concentrator is fixedly arranged inside the pulverized coal burner and comprises a front part ( 102 ) and a rear part ( 101 ), wherein the front part ( 1020 is designed as a bowl-shaped structure, for guiding and concentrating an air-pulverized coal flow, and the rear part ( 101 ) is designed as a cylinder-shaped structure, for ...

In this paper, the effect of a coal concentrator on two-phase velocities, turbulent kinetic energy and particle concentration in a cold model of swirl burner are measured using a phase-Doppler particle anemometer (PDPA). The NO formation in swirling coal combustion is .

In this paper, the effect of a coal concentrator on two-phase velocities, turbulent kinetic energy and particle concentration in a cold model of swirl burner are measured using a phase-Doppler particle anemometer (PDPA). The NO formation in swirling coal combustion is studied by numerical simulation.

pulverized coal, heavy oil, or natural gas is used. Normally the burner is located in the front wall of the furnace. The atmosphere is slightly oxidizing, and the maximum flame temperature is up to 1500 °C. During the 1980s oxygen – fuel burners have been set in the roof to fire downwards -4 of 11-

Jun 09, 2016· A pre-ignition conduit for a pulverized fuel nozzle includes a duct having first and second opposing end portions, the first end portion configured to face an outlet of an igniter. The conduit further includes a cone-shaped concentrator for collecting and forwarding pulverized fuel into the duct for ignition, the cone-shaped concentrator being secured to the first end portion and located ...

7. Pulverized coal concentrator according to one of claims 1 to 5, characterized in that the Cup-shaped wall of the front part (102) is made through holes (105), in particular, near the bottom. 8. Pulverized coal concentrator according to one of claims 1 to 5, characterized in that the cylindrical wall of the rear part (101) is a through hole. 9.

Coal power plants always suffer from high wear problems for their equipments, such as the coal transport system, dust remove system. It costs too much and could cause the pollution problems. KINGCERA can provide the suitable wear protection solutions for the coal plants.

The equipments used to handle coal materials include hopper, pulverized coal separator,coal pipe, pulverized coal concentrator cone, cyclone,coal powder bend,coal powder feeding pipe etc. coal material particle is large,so for a long time, coal power plants suffer from high wear problems for their equipments. and hopper is best serious one .

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Oct 15, 2013· A pulverized coal concentrator for a pulverized coal burner, the concentrator is fixedly arranged inside the pulverized coal burner and comprises a front part ( 102 ) and a rear part ( 101 ) Pulverized coal concentrator and pulverized coal burner including the concentrator - Yantai Longyuan Power Technology Co., Ltd.

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Latest Low-NOx Combustion Technology for Pulverized-coal-fired Boilers 190 stability through better flame propagation. The PC (pulverized coal) concentrator has the shape of an artillery shell and is installed in the fuel nozzle of the HT-NR3 burner. The pulverized coal and primary air both tend to move closer to the inner wall of the fuel

Latest Low-NOx Combustion Technology for Pulverized-coal, Latest Low-NOx Combustion Technology for Pulverized-coal-fired Boilers 190 stability through better flame propagation The PC (pulverized coal) concentrator has the shape of an artillery shell and is installed in the fuel nozzle of the HT-NR3 burner The pulverized coal and primary air both tend to move closer to the inner wall of the fuel

An internal-burning type firing pulverized coal burner is disclosed. It is used in a boiler which uses pulverized coal as fuel. It includes a primary wind pipe (1) connected with a pulverized coal intensified combustion chamber (4), a high strength ignition heat source (3) and the intensified combustion chamber (4). The high strength ignition heat source (3) is inserted into the pulverized ...

cone shaped concentrator pulverized coal Pulverized coal-fired boiler - Wikipedia A pulverized coal-fired boiler is an industrial or utility boiler that generates thermal energy by burning pulverized coal that is blown into the firebox.

Our company design pulverized coal burner is according to different kiln type, different feature of pulverized coal and different technical conditions, with typical structure and reasonable technical parameters, ensuring the pulverized coal, primary air, secondary air mix fully, make high burning efficiency, larger heat intensity, better fire shape and easy control, its widely used in various ...

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