Rotary kiln waste heat recovery apparatus

The technology of a waste heat recovery device and a rotary kiln is applied in the field of strontium salt production, which can solve the problems of energy waste, environmental pollution and the like, and achieve the effect of simple structure

Inactive Publication Date: 2017-06-23
CHONGQING KINGLONG FINE STRONTIUM CHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Now the roasting of strontium sulfate and white coal is mainly carried out in the rotary kiln, and the coal powder is blown into the burner of the rotary kiln by a fan, and the other end of the rotary kiln is u

Method used

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  • Rotary kiln waste heat recovery apparatus

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Embodiment Construction

[0013] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0014] see figure 1 Said one kind of rotary kiln waste heat recovery device includes a rotary kiln body 1, a circulation pipe 2 is connected to the upper opening of the rotary kiln body 1, and a waste heat recovery device is connected to the end of the circulation pipe 2, and the waste heat recovery device includes: The recovery cavity 4 is provided with multi-layer partitions 6. The partitions 6 are arranged in a staggered manner in ...

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Abstract

The invention discloses a rotary kiln waste heat recovery apparatus. The apparatus is characterized in that the apparatus comprises a rotary kiln body, a circulating pipeline is connected to an opening part on the rotary kiln body, the circulating pipeline is provided with a blower which horizontally supplies air from one side of the rotary kiln body and is connected by a pipeline, and the end of the circulating pipeline is connected to a waste heat recovery device; the waste heat recovery device comprises a recovery chamber which is provided with multiple layers of baffle plates, and the baffle plates are arranged in the recovery chamber in cross arrangement; the recovery chamber is also provided with a heat exchange pipeline which is folded along the baffle plates; the end of the heat exchange pipeline is connected to a sodium sulfite drying case; an air outlet is arranged at the end of the recovery case. The recovery apparatus has a simple structure, can be used for recycling and reusing heat in the rotary kiln exhaust gas, and the heat can be used for directly drying a sodium sulfite product.

Description

technical field [0001] The invention belongs to the field of strontium salt production, in particular to a rotary kiln waste heat recovery device. Background technique [0002] At present, the production process of strontium carbonate by reduction method is as follows: firstly, the celestite is broken into small pieces, then mixed with white coal (or coke), ground into fine powder, sent to a roaster, and reduced and roasted at 800-1400℃. The strontium sulfate in the white coal reacts with the carbon in the white coal to form strontium sulfide. Strontium sulfide is easily soluble in water, and strontium sulfide is converted into strontium hydroxide and strontium hydrosulfide through a leaching process, and then converted into strontium carbonate and hydrogen sulfide through a carbonation reaction with carbon dioxide. [0003] At present, the roasting of strontium sulfate and white coal is mainly carried out in a rotary kiln. Coal powder is blown into the furnace head of the ...

Claims

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Application Information

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IPC IPC(8): C01D5/18C01F11/18F27D17/00F26B21/00
CPCC01D5/18C01F11/187F26B21/002F27D17/004Y02P10/25Y02P20/10Y02P20/129Y02P70/10
Inventor 余小容吴成贵唐世兵
Owner CHONGQING KINGLONG FINE STRONTIUM CHEM
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