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Screw type cement/ceramsite calcining kiln

A spiral firing kiln technology, applied in vertical furnaces, furnaces, lighting and heating equipment, etc., can solve the problems of difficult product quality assurance, large investment in rotary kilns, lack of competitiveness, etc., and achieve good ventilation and clinker Good quality and energy saving effect

Inactive Publication Date: 2007-09-26
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the firing of ceramsite mostly adopts rotary kiln, which requires a large investment and high cost; and the general earthen kiln is poorly equipped and difficult to guarantee product quality, so it lacks competitiveness in the market.

Method used

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  • Screw type cement/ceramsite calcining kiln
  • Screw type cement/ceramsite calcining kiln

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Experimental program
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Embodiment Construction

[0010] Describe concrete construction steps of the present invention in detail below in conjunction with accompanying drawing.

[0011] Step 1: First build the kiln body 1 by masonry, and reserve a feed opening 10 at the same time. The ratio of the diameter and height of the kiln body is preferably 1:4, the diameter of the kiln body is generally selected between 2.0-3.0 meters, preferably 2.5 meters, and the height is 8-11 meters; there are 4 viewing ports on the kiln body, which are divided into Two groups, the positions are 180 degrees apart, one group of feed openings are located at one-fifth and three-fifths of the kiln body, and the other set of feed openings are located at two-fifths and three-fifths of the kiln body. Four out of five.

[0012] Step 2: Assemble the stepped unloading device 3, the hydraulic transmission device 4, and the closing device 5.

[0013] Step 3: Lift the central porous core tube 7 and the spiral grate plate 8, fix the lower end of the central ...

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Abstract

The present invention relates to a spiral cement / ceramicite calcining kiln. Said calcining kiln is formed from kiln body, feeding device, stepped material-discharging device, hydraulic transmission device, closing device, chimney, central porous core pipe, helical grate plate, air blowing device and viewing port. Said invented calcining kiln is simple in operation, can save energy source, and can reduce the production cost of cement and building ceramicite.

Description

technical field [0001] The invention belongs to the field of building material production equipment. It involves cement / ceramsite production equipment, especially spiral cement / ceramsite firing equipment. Background technique [0002] Cement is the most important building cementitious material in my country. The existing production equipment is mainly shaft kilns and rotary kilns, with a total of about 7,100, of which 5,500 are shaft kilns. This is because the shaft kiln has simple process, less investment, quick income and relatively easy construction. And occupy a small area, low level of technical requirements. Its disadvantage is that the output is low and the quality is not stable. This is mainly due to the fact that the raw material is fired statically in the shaft kiln, lacks necessary movement, and is caused by uneven flames in the kiln. The improvement of the rotary kiln overcomes the disadvantages of low output and unstable quality of the traditional vertical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B1/04
Inventor 王立久
Owner DALIAN UNIV OF TECH