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Vertical gas-burning cement kiln

A shaft kiln and cement technology, applied in the field of large-scale calcining equipment, can solve problems such as unsolved defects, and achieve the effects of optimizing calcining effect, reducing pollution, and continuously and uniformly discharging materials

Active Publication Date: 2012-10-10
SHIJIAZHUANG XINHUA IND FURNACE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This utility model patent has a reasonable structure, sufficient calcination, and is economical and practical, but it does not solve the defects of the above-mentioned solid fuel calcined materials

Method used

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  • Vertical gas-burning cement kiln
  • Vertical gas-burning cement kiln
  • Vertical gas-burning cement kiln

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Gas fired cement shaft kiln of the present invention such as figure 1 As shown, it is mainly composed of a chimney 16, a kiln body 7, a material distribution device 2, a discharge device 10, a cooling system and a calcination system. The kiln body has a preheating zone 3, a calcining zone 6, a cooling zone 8 and a discharge port 9. There are 12 straight tube burners 5 in the kiln body, such as figure 2 As shown, the straight tube burners are arranged in a honeycomb ring in the kiln body. The straight tube burner is inserted into the calcining zone from the preheating zone, the upper end of the straight tube burner is connected with the fuel gas distribution pipe 4, and the fuel gas distribution pipe is connected to the fuel gas pipeline outside the kiln, and the fuel gas pipeline is provided with a valve 11. The shaft kiln is a straight cylinder type shaft k...

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Abstract

The invention provides a vertical gas-burning cement kiln, which consists of a kiln body, a feeding device, a discharging device, a cooling system and a calcining system, wherein the kiln body is internally provided with a preheating zone, a calcining zone and a cooling zone, and is internally provided with a straight pipe burner which is inserted into the calcining zone from the preheating zone,the upper end of the straight pipe burner is connected with a fuel gas distribution pipe, and the fuel gas distribution pipe is connected with a fuel gas pipeline arranged outside the kiln body. The straight pipe burner is in honeycomb-like distribution according to a thermal field, so that the fuel gas can be uniformly calcined in the calcining zone, the effect of the calcining is optimized, thepollution to the calcined products can be reduced, and the quality of calcined cement can be improved. Since the rotary graded feeding device is used, the feeding in the kiln body is more rational, and the air flow distribution on the section of the kiln body is uniform; and a disc discharge device which can break the materials and can continuously and uniformly discharge is used.

Description

technical field [0001] The invention belongs to the technical field of large-scale calcining equipment, and in particular relates to a gas-fired shaft kiln for producing cement. Background technique [0002] Cement production is based on limestone and clay as the main raw materials, which are crushed, batched, and ground to make raw meal, and then fed into the cement kiln to calcinate the clinker, and then the clinker is ground with an appropriate amount of gypsum. Cement production can be divided into dry method and wet method according to different raw material preparation methods. Dry production is a method of drying and grinding raw materials at the same time, or first drying and grinding raw material powder and then feeding it into dry kiln to calcinate clinker. [0003] The equipment for cement production is mainly in two types: shaft kiln and rotary kiln. The shaft kiln is divided into ordinary shaft kiln and mechanized shaft kiln. Ordinary shaft kiln is manual feed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B1/02F27B1/10
Inventor 贾会平刘树立
Owner SHIJIAZHUANG XINHUA IND FURNACE CO LTD