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Cement clinker sintering technological process and device

A technology of cement clinker and process flow, applied in the field of cement clinker, to achieve the effect of maintaining temperature and uniformity

Active Publication Date: 2022-01-18
石家庄市曲寨水泥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a cement clinker firing process and device, which can solve the existing problem of cement clinker firing Technological process and device problems; this device cuts the raw material by setting the cutting groove and discharges the fine raw material through the filter port, the lifting block sealing column heats the groove, and the cooling groove continues to cool the clinker, effectively solving the problem

Method used

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  • Cement clinker sintering technological process and device
  • Cement clinker sintering technological process and device
  • Cement clinker sintering technological process and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] see figure 1 , a cement clinker firing process, comprising the following process:

[0037] Step 1: Put the material into the kiln, dry it when the temperature rises to 100-150 degrees Celsius, and dehydrate when the temperature rises to 450 degrees Celsius: when the temperature of the material entering the kiln rises to 100-150 degrees Celsius, all the free water in the raw material Excluded, especially in wet production, the water content in the slurry is 32-40%, this process is more important, while the moisture content of raw meal in dry production generally does not exceed 1.0%;

[0038] When the temperature of the material entering the kiln rises to 450°C, kaolin, the main component of the clay, undergoes a dehydration reaction to remove the chemically bound water. This process is an endothermic process: Al2O3·2SiO2·2H2O==Al2O3+2SiO2+2H2O dehydration After becoming amorphous trialuminum trioxide and silicon dioxide, these amorphous substances have higher activity;...

Embodiment 2

[0048] see Figure 2-4 , a cement clinker burning device, comprising a kiln 1, the top of the kiln 1 is fixedly installed with a feed port 2, the bottom of the feed port 2 is fixedly connected with a stirring tank 3, and the inside of the kiln 1 is fixedly installed with a heating tank 4 and refrigeration tank 5. The inside of the stirring tank 3 is rotatably connected with a stirring rod 31, the bottom of the stirring tank 3 is fixedly equipped with a filter port 32, the right end of the stirring rod 31 is fixedly connected with a collecting tank 33, and the bottom of the collecting tank 33 is fixedly equipped with a cutting groove 34, the cutting groove The center of 34 is rotatably connected with a rotating shaft 35, and the periphery of the rotating shaft 35 is fixedly connected with a tension spring 36, and the end of the tension spring 36 away from the rotating shaft 35 is fixedly equipped with a cutting knife 37, and the periphery of the rotating shaft 35 is fixedly con...

Embodiment 3

[0050] see Figure 1-4 , a cement clinker firing process, comprising the following process:

[0051] Step 1: Put the material into the kiln, dry it when the temperature rises to 100-150 degrees Celsius, and dehydrate when the temperature rises to 450 degrees Celsius: when the temperature of the material entering the kiln rises to 100-150 degrees Celsius, all the free water in the raw material Excluded, especially in wet production, the water content in the slurry is 32-40%, this process is more important, while the moisture content of raw meal in dry production generally does not exceed 1.0%;

[0052] When the temperature of the material entering the kiln rises to 450°C, kaolin, the main component of the clay, undergoes a dehydration reaction to remove the chemically bound water. This process is an endothermic process: Al2O3·2SiO2·2H2O==Al2O3+2SiO2+2H2O dehydration After becoming amorphous trialuminum trioxide and silicon dioxide, these amorphous substances have higher activi...

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Abstract

The invention belongs to the technical field of cement clinker, and discloses a cement clinker sintering technological process and device. The cement clinker sintering device comprises a kiln, a feeding opening is fixedly formed in the top of the kiln, a stirring tank is fixedly connected to the bottom of the feeding opening, and a heating tank and a refrigerating tank are fixedly formed in the kiln. According to the cement clinker sintering technological process and device, an overturning shaft drives an overturning plate to overturn, clinker above the overturning plate is overturned into the refrigerating tank, then cold air is rapidly blown into a refrigerating cavity through a refrigerating opening, and the cold air emitted by a refrigerating pipe is adopted, so that the effect of rapidly cooling the clinker is achieved.

Description

technical field [0001] The invention relates to the technical field of cement clinker, in particular to a cement clinker firing process and a device. Background technique [0002] Cement clinker is a semi-finished product obtained by using limestone, clay, and iron as the main raw materials, which are prepared into raw meal in an appropriate proportion, burned until part or all of it is melted, and cooled. In the cement industry, the most commonly used Portland cement clinker is mainly composed of calcium oxide, silicon dioxide and a small amount of aluminum oxide and iron oxide. [0003] The existing technology has the following defects and deficiencies: the solid-phase reaction of cement clinker in the firing process has high requirements on the fineness and uniformity of the raw meal, and the fineness and uniformity of the raw meal are not up to the standard It will affect the solid phase reaction in the case of the temperature, and the temperature has a greater impact o...

Claims

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Application Information

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IPC IPC(8): C04B7/44C04B7/47C04B7/02F27B17/00F27D15/02
CPCC04B7/44C04B7/47C04B7/02F27B17/00F27D15/02
Inventor 高建坤樊少杰钱念伟
Owner 石家庄市曲寨水泥有限公司
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