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Calcining kiln for manufacturing cement clinker and calcining cooling method

A cement clinker and calcination kiln technology, which is applied in the calcination kiln and calcination cooling field for the manufacture of cement clinker, can solve the problems of low cooling clinker efficiency and high energy consumption, achieve cheap calcination, increase cooling speed, and avoid energy and energy consumption. The effect of the loss of

Pending Publication Date: 2022-04-12
林丽珠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a calcination kiln and a calcination cooling method for producing cement clinker, so as to solve the problems of low efficiency and high energy consumption of the existing grate bed cooling clinker

Method used

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  • Calcining kiln for manufacturing cement clinker and calcining cooling method
  • Calcining kiln for manufacturing cement clinker and calcining cooling method
  • Calcining kiln for manufacturing cement clinker and calcining cooling method

Examples

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Embodiment 1

[0035] see Figure 1-9 As shown, the present invention is a calcining kiln for producing cement clinker, comprising a rotary cylinder 1, a kiln head box 2 and a kiln tail box 3, and the rotary drum 1 is arranged between the kiln head box 2 and the kiln tail box 3, And the rotary drum 1, the kiln head box 2 and the kiln tail box 3 all rotate and cooperate, and the three are connected to each other at the same time. This structure is a conventional structure of a calcining kiln, which also includes a rotary motor for the rotary kiln to rotate and a combustion engine for the calcination. devices, and are installed by conventional installation methods;

[0036]The inner surface of the kiln head box 2 is bolted with a preheating box 201, and the lower surface of the preheating box 201 is welded and connected with a feeding pipe 202, and the feeding pipe 202 extends to the inside of the rotary drum 1; the preheating box 201 is used to preheat and raise the temperature of the raw mat...

Embodiment 2

[0043] The present embodiment is a calcining and cooling method for a calcining kiln used to manufacture cement clinker in the present invention, comprising the following steps:

[0044] Step 1. Under the condition that the rotary motor and the burner of the calcining kiln are started at the same time, the ground and pulverized limestone raw material is transported to the inside of the feed pipe 206 through the conveyor, and the driving air pump 304 is started at the same time, and the driving air pump 304 drives the kiln tail box 3 The hot air heated up by radiation inside is transported to the inside of the preheating pipe 203 through the recovery pipe 305 and the combiner box 204, and the pipe wall of the preheating pipe 203 is used to preheat and raise the temperature of the raw material;

[0045] Step 2: The preheated raw material flows into the feeding pipe 202. At this time, under the action of the driving air pump 304, the preheated air passes through the preheating pip...

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Abstract

The invention discloses a calcining kiln for manufacturing cement clinker and a calcining cooling method, and relates to the technical field of calcining cooling of cement clinker. The rotary kiln comprises a rotary cylinder, a kiln head box and a kiln tail box, a preheating box and a preheating pipe are arranged in the kiln head box, a material receiving disc and a heat dissipation scraping plate are arranged in the kiln tail box, and meanwhile the kiln tail box and the kiln head box are communicated with each other through a recycling pipe. The preheating box and the preheating pipe are arranged, and raw materials are preheated through air waste heat generated after heat radiation in the kiln tail box, so that raw material powder is heated faster, and calcination is cheaper; by arranging the pneumatic trough plate, the material receiving disc is driven to rotate by utilizing the power for driving the air pump to pump cooling air, the stacked clinker is screened after being flattened for heat dissipation, the heat dissipation area is enlarged, and the cooling speed is increased; meanwhile, the air participating in cooling work participates in preheating work of the raw materials again after being heated, and cyclic utilization of energy and heat in the calcining kiln is completed.

Description

technical field [0001] The invention belongs to the technical field of cement clinker calcining and cooling, and in particular relates to a calcining kiln and a calcining cooling method for producing cement clinker. Background technique [0002] Cement is one of the most common building materials in construction work. It is usually processed by calcination of rocks such as limestone; the production process of cement is usually a process from raw material to clinker, and it is often necessary to calcine and process crushed limestone powder. Only after cooling can it become a commonly used cement; the calcining kiln is inseparable from the calcining work of cement, and the most common one is the rotary kiln, which mainly includes the rotary kiln barrel, the kiln head feeding structure and the kiln tail discharging structure; because the limestone needs to be The process of calcination and impurity removal at thousands of degrees Celsius often generates a lot of heat. If the he...

Claims

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Application Information

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IPC IPC(8): F27B7/00F27B7/20F27B7/32F27B7/38C04B7/47
Inventor 林丽珠
Owner 林丽珠