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Brown coal powder feeder

A technology of lignite powder and feeder, applied in the direction of fuel supply, block/powder supply/distribution, combustion method, etc.

Inactive Publication Date: 2017-09-12
蔡克文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no equipment that can transport lignite powder to ordinary boilers.

Method used

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  • Brown coal powder feeder
  • Brown coal powder feeder
  • Brown coal powder feeder

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Embodiment Construction

[0013] Refer to attached figure 1 —3, it includes a frame 1, the top of the frame is fixed with a hopper 2, the upper cover of the hopper is provided with a feed inlet, the screw conveyor 3 is located in the middle of the frame, the outlet of the hopper and the inlet of the screw conveyor The feed port is connected, the lower part of the frame is provided with a mixer 4, the discharge port of the screw conveyor is connected with the feed port of the mixer, and a nozzle 5 is installed on the discharge port of the mixer, and the nozzle includes an outer tube wall 5-1, an inner pipe wall 5-2 is arranged in the outer pipe wall, the space between the outer pipe wall and the inner pipe wall is an air duct 5-3, and an air distribution port 5-4 is provided on the outer pipe wall, and the inner pipe wall The wall is provided with several channels 5-5 for the passage of lignite powder, and each channel in the inner pipe wall is connected with the mixer, and two fans 6 are also arranged ...

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PUM

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Abstract

The lignite powder feeder relates to a feeding device capable of feeding lignite powder into a boiler. It is mainly designed to solve the problem that there is no equipment that can transport brown coal powder to ordinary boilers at present. It includes a frame, with a hopper on the top of the frame, a feed inlet on the upper cover of the hopper, a screw conveyor in the middle of the frame, the outlet of the hopper is connected with the feed inlet of the screw conveyor, and the There is a mixer in the lower part, and the outlet of the screw conveyor is connected with the inlet of the mixer. There is a nozzle on the outlet of the mixer. The nozzle includes the outer tube wall, the inner tube wall, and the gap between the inner and outer tube walls. The space in the air duct is the air duct, and there are air distribution ports on the outer pipe wall. There are several channels in the inner pipe wall, and each channel is connected with the mixer. The air inlet of the mixer is connected through a pipeline, and the air outlet of another fan is connected with the air distribution port of the nozzle through a pipeline. The advantage is that lignite powder can be fed into ordinary boilers.

Description

Technical field: [0001] The invention relates to a feeding device capable of feeding lignite powder into a boiler. Background technique: [0002] Lignite is the least coalified mineral coal. A dull, low-rank coal between peat and bituminous coal. It has strong chemical reactivity, is easy to weather in the air, is not easy to store and transport, and causes serious air pollution when burned. Lignite has high water content (30-45%), high volatile content (above 40%), low ignition point, and prone to spontaneous combustion. [0003] In recent years, the effective comprehensive utilization of lignite has become a hot research field with great development prospects. Different technical means are used to dry and upgrade lignite, and the upgraded lignite will be more conducive to transportation, storage and comprehensive utilization. The main use of lignite is as fuel for power plants, [0004] After drying and pulverizing, it is very easy to spontaneously ignite and explode....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23K3/02
Inventor 蔡克文
Owner 蔡克文