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Pulverized coal graded combustion rotary furnace

A staged combustion and rotary furnace technology, applied in the field of kilns, can solve problems such as power consumption, reduced quality of quicklime, and insufficient combustion

Active Publication Date: 2016-04-06
赵光辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because the pulverized coal is burned on the chain plate in the fixed furnace cavity, although it is easier to burn than the coal block, it needs high-pressure blast to blow the pulverized coal, which not only consumes electricity, but also the particles in the pulverized coal still exist due to the fast flow. Insufficient combustion, the defect of coal waste
[0003] Used for calcination of lime, coal powder and limestone mixed flame, quicklime is mixed with cinder, which reduces the quality of quicklime and restricts the use of quicklime

Method used

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Embodiment Construction

[0010] In conjunction with the accompanying drawings and embodiments, the specific structure of the invention is further described.

[0011] The present invention creates the example 1 of coal powder graded combustion rotary furnace, see figure 1 , its structure includes: furnace body 10, pulverized coal hopper 1, slag hopper 8, blast pipe 9, rotary furnace chamber 3, transmission mechanism 2, pulverized coal chute 11 connected to the bottom of pulverized coal hopper 1, coal The outlet of the pulverized coal pipe 11 extends into one end of the rotary furnace cavity 3, and the pulverized coal short pipe 7 is arranged axially in the rotary furnace chamber 3 to communicate with the pulverized coal pipe 11, and a cylindrical sieve 6 is connected to the outlet of the short pulverized coal pipe 7 A clapboard 5 is sheathed on the periphery of the cylindrical sieve 6, and a flame heat supply port 4 is provided at the other end of the rotary furnace chamber 3.

[0012] The present inv...

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Abstract

The invention belongs to the field of kilns, and relates to a pulverized-coal staged-combustion revolving furnace. The pulverized-coal staged-combustion revolving furnace is mainly characterized in that an articulated chute is connected to a feed hopper at one end of a revolving furnace cavity; the furnace cavity is provided with a short pipe, a cylindrical screen and an outer partition plate; the short pipe is communicated with the articulated chute; and the cylindrical screen is connected with the short pipe. The pulverized-coal staged-combustion revolving furnace can be used as a combustion furnace and also as a lime calcining kiln, and has the remarkable advantages of low air pressure blasting and air draft, sufficient combustion, accelerated calcination, power and coal saving, pure lime without impurities, improved product quality and the like.

Description

technical field [0001] The invention belongs to the field of furnaces and kilns, relates to a coal powder combustion furnace and a lime powder calcining kiln, and proposes a coal powder graded combustion rotary furnace. Background technique [0002] The existing pulverized coal combustion furnace comprises a static furnace body, a feeding port, a slag outlet, a tuyere, and a combustion chamber. Because the pulverized coal is burned on the chain plate in the fixed furnace cavity, although it is easier to burn than the coal block, it needs high-pressure blast to blow the pulverized coal, which not only consumes electricity, but also the particles in the pulverized coal still exist due to the fast flow. Insufficient combustion, waste of coal defects. [0003] For calcination of lime, coal powder and limestone are mixed with each other, and the quicklime is mixed with coal slag, which reduces the quality of quicklime and restricts the use of quicklime. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B2/10
Inventor 赵政赵光辉照明
Owner 赵光辉
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