Built-in chimney flue type energy-saving environment protective smelting lime calcining kiln

An energy-saving, environment-friendly, flue-type technology, applied in the field of calcining kilns, can solve the problems of low utilization rate of heat energy, incomplete combustion of gas, and high energy consumption, and achieve the effects of high quality of finished products, good calcination effect, and appropriate amount of flue gas.

Inactive Publication Date: 2007-10-31
刘永智
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Problems solved by technology

However, this structure still has the disadvantages of incomplete gas combustion, low thermal energy utilization rate, and high energy consumption.

Method used

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  • Built-in chimney flue type energy-saving environment protective smelting lime calcining kiln

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the protection content of the present invention is not limited to this embodiment.

[0014] As shown in Figure 1, this embodiment includes a kiln body 2 with a hopper 1 at the upper end and a discharge port 14 at the lower end. The discharge ports 14 are four evenly distributed front, rear, left and right. The upper end of the inner cavity of the kiln body 2 is hemispherical.

[0015] Offer three layers of fire inlets 6 on the side of the kiln body 2, each layer of twelve. The fire inlet hole 6 is respectively connected with two gas furnaces 13 through the gas pipe 9, and two upper induced draft fans 7 are respectively installed on the side of the kiln body 2 through brackets, and the upper induced draft fan 7 provides a mechanism for blowing gas into the inner cavity of the kiln body 2. power.

[0016] A built-in chimney 15 is arranged in the inner...

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Abstract

The invention discloses a energy-saving environmental protection metallurgy lime calcining kiln with built-in flue, which comprises the following steps: arranging a build-in chimney (15) in cave of kiln body (2); equipping a ring-shaped flue (10) with several flue gas reclaiming mouths at the lower of entering fire hole (6); communicating the flue gas reclaiming mouth with burning room (8); setting the built-in chimney (15) as hollow structure; opening circulating flue (4) at the upper; connecting the lower end to the ring-shaped flue (10) through flue gas pipe (12) and lower exhauster (11). This invention can be cycling utilized, which can decrease environmental pollution degree.

Description

technical field [0001] The invention relates to a calcination kiln, in particular to a built-in flue-type energy-saving and environment-friendly metallurgical lime calcination kiln. Background technique [0002] Most of the existing metallurgical lime calcination kilns or roasting kilns use coal as fuel. Because it is difficult to burn fully, not only will a large amount of black smoke pollute the atmospheric environment, but also the separation of coal slag and ash will reduce the survival efficiency. [0003] Chinese invention patent CN200520024865.8 discloses a "new environmental protection and energy-saving calcined lime kiln", which uses coal gas as fuel, and solves the above problems preferably. But this structure still has incomplete gas combustion, low thermal energy utilization rate, high energy consumption and other deficiencies. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide an energy-saving and envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B2/10
CPCY02P40/40
Inventor 刘永智
Owner 刘永智
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