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Heat-accumulating-type cement calcination device

A calcination device and heat storage technology, which is applied in the direction of furnace cooling device, waste heat treatment, lighting and heating equipment, etc., can solve the problem of unsolved heat utilization of rotary kiln, reduce the load of kiln body, prolong the service life and increase the weight Effect

Active Publication Date: 2015-08-12
SHIJIAZHUANG XINHUA IND FURNACE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent does not solve the problem of heat utilization of the rotary kiln

Method used

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  • Heat-accumulating-type cement calcination device
  • Heat-accumulating-type cement calcination device
  • Heat-accumulating-type cement calcination device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Regenerative cement calcining device of the present invention such as figure 1 As shown, it includes two rotary kilns 10, two heat accumulators 2, cooler 14, cement raw material system 4, clinker bin 16, cooling fan 15, multi-bend dust collector 3, kiln body cooling fan 17, combustion-supporting fan 19 and Exhaust Emission System 1. The rotary kiln is equipped with a kiln head cover 6 and a kiln tail cover 13. The kiln head cover is provided with a burner 7 and a cement raw material nozzle 9. The burner is a solid fuel burner, and the burner is connected to the fuel system 5. The cement raw material nozzle is connected to the cement raw material system connection. The two rotary kilns 10 are symmetrically or asymmetrically arranged left and right, and are connected to the kiln tail cover 13 respectively. The upper part of the heat accumulator is provided with a flue gas outlet and an air inlet, the flue gas outlet is connected to the waste gas discharge system through...

Embodiment 2

[0026] Another embodiment of the present invention is as Figure 4 As shown, this includes a rotary kiln 10, two heat accumulators 2, a cooler 14, a cement raw material system 4, a clinker bin 16, a cooling fan 15, a multi-bend dust collector 3, a kiln body cooling fan 17, and a combustion-supporting fan 19 and exhaust system 1. The rotary kiln is equipped with a kiln head cover 6 and a kiln tail cover 13. The kiln head cover is provided with a burner 7 and a cement raw material nozzle 9. The kiln tail cover is provided with a burner 7. The burner is a solid fuel burner. The burner and the fuel system 5 connection, the cement raw material nozzle is connected with the cement raw material system. The kiln chamber 12 of the rotary kiln 10 is connected to the multi-bend dust collector through the kiln head cover and the kiln tail cover respectively, and the multi-bend dust collector is connected to the heat accumulator. The cooler is connected with the clinker bin, and the cooli...

Embodiment 3

[0029] Another embodiment of the present invention is: the cooling channel 11 is a square steel pipe structure, and the square steel pipe is inserted Figure 5 Shown or in the hole that special-shaped refractory brick 25 masonry forms. Cooling channels in steel structure are used to preheat hot water or other liquids.

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Abstract

The invention relates to a heat-accumulating-type cement calcination device which comprises a rotary kiln, two heat accumulators, a cooler, cement raw material systems, multi-bend dust removers, a kiln body cooling fan, a clinker silo, a cooling fan, a combustion fan and an exhaust gas discharge system. The rotary kiln is formed by a rotary kiln housing and a refractory masonry. The refractory masonry is formed by laying refractory bricks. The refractory bricks comprise special-shaped refractory hole bricks and special-shaped refractory bricks. Holes of the refractory bricks are communicated to form a cooling channel; and the centre of the refractory masonry is a kiln chamber. The heat accumulators are connected with the multi-bend dust removers respectively; the multi-bend dust removers are connected with the kiln chamber through a kiln head cover or a kiln tail cover; the kiln chamber is connected with the cooler through the kiln tail cover; the kiln body cooling fan is connected with the cooling channel; and the cooling channel is connected with an air entrance of a multi-bend nozzle. The smoke heat accumulation technology is utilized to preheat combustion air, and heat dissipated out of an outer wall of the kiln body is utilized to preheat air or water, so that waste heat is fully utilized, energy consumption and cement production cost are reduced, and heat efficiency of the rotary kiln is improved.

Description

technical field [0001] The invention belongs to the technical field of building material equipment, and relates to a cement rotary kiln, in particular to a heat storage type cement calcining device. Background technique [0002] In many production industries such as building materials, metallurgy, chemical industry, and environmental protection, rotary kilns are widely used for mechanical, physical or chemical treatment of solid materials. The current rotary kiln generally feeds in from one end of the kiln and discharges from the other end, and the material moves forward in the kiln depending on the inclination of the rotary kiln and the rotation of the kiln. Rotary kiln refers to rotary calcining kiln, which belongs to building materials production equipment. Rotary kiln can be divided into cement kiln, metallurgical chemical kiln and lime kiln according to different materials. Cement kilns are mainly used for calcining cement clinker, which can be divided into two ca...

Claims

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Application Information

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IPC IPC(8): F27B7/00F27B7/28F27D1/12F27D17/00F27B7/34F27D1/04
Inventor 贾会平
Owner SHIJIAZHUANG XINHUA IND FURNACE CO LTD
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