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Industrial waste residue masonry cement based on biomass fuel calcined clinker and preparation method thereof

A biomass fuel and industrial waste residue technology, applied in the field of cement production, can solve the problems of ineffective utilization of excess heat, many dust generation ranges and locations, and lowering the environmental protection coefficient of cement production, so as to reduce flying and generation, and improve production. environment and health effects

Inactive Publication Date: 2021-03-30
安徽枞阳海螺水泥股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, in the cement production process, due to the many production processes of cement production, dust will inevitably be generated during the transmission of cement raw materials, clinker and finished products, and at the same time, dust will also be generated during the raw material processing of cement. Dust is produced in many areas and places, which is not conducive to large-scale treatment on a large scale, and in the production process, some excess heat cannot be effectively used, and direct discharge will cause white pollution, which reduces the environmental protection factor of cement production

Method used

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  • Industrial waste residue masonry cement based on biomass fuel calcined clinker and preparation method thereof
  • Industrial waste residue masonry cement based on biomass fuel calcined clinker and preparation method thereof
  • Industrial waste residue masonry cement based on biomass fuel calcined clinker and preparation method thereof

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Effect test

Embodiment 1

[0029] see figure 1 , Raw meal and coal powder preparation dust removal is divided into raw meal preparation dust removal and coal powder preparation dust removal;

[0030] The raw materials in the raw meal preparation process are limestone, clay and iron ore, and the raw materials in the pulverized coal preparation process are raw coal. At the position where dust is generated during homogenization and storage, the dust is adsorbed by water mist to achieve dust reduction;

[0031] Raw coal is homogenized, transported and prepared in the process of pulverized coal preparation. Water mist dust reduction acts on the raw coal homogenization, transportation and preparation process, and water mist is used to reduce dust on raw coal dust to reduce dust flying.

[0032] Limestone raw materials, clay and iron ore are crushed, homogenized and stored, and then transported to the raw material blending equipment using a conveyor belt. During the blending process of limestone raw materials...

Embodiment 2

[0034] see figure 2 , Clinker calcination and dedusting are made into raw meal after the raw material is prepared, and the raw meal enters the calcination stage after raw material grinding and raw meal homogenization. After being cooled by the grate cooler, the cooled clinker is stored as clinker;

[0035]Dust will be generated during raw material grinding, raw material homogenization and preheating process. The dust will pass through the vacuum cleaner, and the air with dust will be input into the treatment tower. Water mist is sprayed inside the treatment tower to absorb the dust and preheat The high-temperature gas generated by the device is transmitted to the raw material grinding stage, the high-temperature air is used, and the high-temperature air is discharged with dust mixed in. After the dust is reduced by the treatment tower, the water condensed by the water mist also has temperature, and the high-temperature wastewater is transmitted to the waste heat power station...

Embodiment 3

[0038] see image 3 In the cement grinding stage, the clinker is stored and transferred to the cement grinding equipment, and the admixture and gypsum are added during the cement grinding process. The admixture needs to be dried, and the gypsum needs to be crushed;

[0039] The hot air generated by the cooling of the grate cooler is passed into the mixed material drying equipment to realize the recovery of heat and speed up the drying efficiency of the mixed material;

[0040] The dust generated during the drying of mixed materials, gypsum crushing and cement grinding is reduced by water mist to effectively treat the generated dust, reduce the flying of dust, and reduce the direct contact with the cement body, so as to avoid the condensation of cement and water. not available;

[0041] After the cement is ground, the finished cement product is stored, and the stored cement product is packaged to make bulk cement, and the dust generated during the cement storage and cement sto...

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Abstract

The invention discloses industrial waste residue masonry cement based on biomass fuel calcined clinker and a preparation method of the industrial waste residue masonry cement, the preparation method comprises raw material and pulverized coal preparation dust removal, clinker calcination dust removal and cement grinding dust removal, and the cement production sequence is raw material and pulverizedcoal preparation, clinker calcination and cement grinding. The raw material and pulverized coal preparation dust removal and the cement grinding dust removal are carried out by adopting a water mistdust removal method, the clinker calcination storage adopts a treatment tower to remove dust and gas, and high-temperature air is introduced into a waste heat power station to realize the recycling ofheat. Dust generated in the production process of cement raw materials, clinker and finished products is comprehensively eliminated, dust pollution is reduced, the body health of workers is maintained, heat generated in the clinker production process is effectively recycled, energy conservation and environmental protection are achieved, and pollutants can be reduced.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to an industrial waste residue masonry cement based on biomass fuel calcined clinker and a preparation method thereof. Background technique [0002] Cement is an indispensable building material in the field of modern construction. It is widely used and used in a large amount. Therefore, certain dust pollution will be generated in the cement production process, which will harm the health of workers and affect the environmental protection index of cement production. And with the widespread application of biomass fuels, some cement plants will use biomass fuels as fuels in the calcination stage, followed by other types of polluting wastes produced after biomass fuel combustion, using the existing pollution The treatment method does not have a good dust removal effect. [0003] After a massive search, the existing technology was found, the publication number is CN104548765A,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/22C04B7/36C04B7/47
CPCC04B7/22C04B7/36C04B7/364C04B7/475
Inventor 程小兵张慧明毛施昂李迎春葛德贵戴挥尹遥
Owner 安徽枞阳海螺水泥股份有限公司
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