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High-volume fly ash cement production technique and pulverizing technique

A technology of fly ash cement and fly ash, which is applied in cement production, clinker production, etc., can solve the problems that the chemical activity is not fully exerted, the strength of cement cannot meet the standard requirements, and achieve economic benefits and social benefits. Significant benefits, improved grinding efficiency, and improved quality

Active Publication Date: 2011-09-07
攀枝花攀煤水泥制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, the amount of fly ash in my country's fly ash cement or composite cement is relatively low, generally 20-30%, and its potential chemical activity has not be

Method used

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  • High-volume fly ash cement production technique and pulverizing technique
  • High-volume fly ash cement production technique and pulverizing technique
  • High-volume fly ash cement production technique and pulverizing technique

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1 Production of high-mixed fly ash cement and its properties by the method of the present invention

[0029] Raw material preparation: 10% of sodium carbonate, 88% of sodium sulfate, and 2% of triethanolamine are mixed evenly for the activator according to the weight ratio. The clinker comes from Panzhihua Ruifeng Cement Co., Ltd., which is produced by the raw material preparation and clinker calcination process according to the ordinary cement production method. The clinker meets the national standard GB / T 21372-2008; the fly ash comes from Pangang gangue power generation Co., Ltd. meets the national standard GB / T 1596, and the gypsum comes from Panzhihua Pingdi Gypsum Factory, which meets the national standard GB / T 5483.

[0030] First weigh the clinker and gypsum according to the mass shown in Table 1, mix them and grind them for more than 30 minutes, so that the specific surface area of ​​the clinker and gypsum mixture is greater than 350m 2 / kg, the res...

Embodiment 2

[0037] Embodiment 2 Production of high-mixed fly ash cement and its properties by the method of the present invention

[0038] Raw material preparation: 10% of sodium carbonate, 88% of sodium sulfate, and 2% of triethanolamine are mixed evenly for the activator according to the weight ratio. The clinker comes from Panzhihua Ruifeng Cement Co., Ltd., which is produced by the raw material preparation and clinker calcination process according to the ordinary cement production method. The clinker meets the national standard GB / T 21372-2008; the fly ash comes from Pangang gangue power generation Co., Ltd., which meets the national standard GB / T 1596; the gypsum comes from Panzhihua Pingdi Gypsum Plant, which meets the national standard GB / T 5483; the slag comes from Panzhihua Tongde Steel Works, which meets the national standard GB / T 203.

[0039] First weigh the clinker, gypsum and slag according to the mass shown in Table 3, mix them and grind them for more than 30 minutes, so th...

Embodiment 3

[0045] Embodiment 3 Production of high fly ash cement and its properties with the grinding method of the present invention (without the activator described in the present invention in the raw material)

[0046] Raw material preparation: The clinker comes from Panzhihua Ruifeng Cement Co., Ltd., which is obtained through the raw material preparation and clinker calcination process according to the ordinary cement production method. The clinker meets the national standard GB / T 21372-2008; the fly ash comes from Panzhihua Coal Gangue Power Generation Co., Ltd. meets the national standard GB / T 1596, and the gypsum comes from Panzhihua Pingdi Gypsum Factory, which meets the national standard GB / T 5483.

[0047] First weigh the clinker and gypsum according to the mass shown in Table 5, mix them and grind them for more than 30 minutes, so that the specific surface area of ​​the clinker and gypsum mixture is greater than 350m 2 / kg, the residue on 0.08mm square hole sieve is less than...

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Abstract

The invention discloses a high-volume fly ash cement production technique and pulverizing technique, belonging to the field of building material production. The invention aims to solve the technical problem of low volume of fly ash in the cement production. The high-volume fly ash cement pulverizing technique comprises the following steps: a. pulverizing 40-55 parts by weight of clinker and 5-6 parts by weight of gypsum powder, until the specific area is greater than 350m<2>/kg and the residue of a 0.08mm square hole screen is less than 2%; and b. mixing the pulverized clinker and gypsum in the step a with 40-50 parts by weight of fly ash and 0.4-0.6 part by weight of excitant, and pulverizing until the specific area is greater than 400m<2>/kg and the residue of a 0.08mm square hole screen is 1-1.5%. The techniques disclosed by the invention enhance the volume of fly ash in the cement, reduce the pollution, lower the energy consumption, enhance the quality and yield of the cement, lower the cost of the cement, implement the comprehensive utilization of resources, have obvious economic and social benefits and wide popularization prospects.

Description

technical field [0001] The invention belongs to the field of building material production, and in particular relates to a production process and a grinding process of high-mixed fly ash cement. Background technique [0002] Cement, powdery hydraulic inorganic gelling material. After adding water and stirring, it becomes a slurry, which can be hardened in the air or better hardened in water, and can firmly bind sand, stone and other materials together. Cement is an important building material. The mortar or concrete made of cement is strong and durable, and is widely used in civil engineering, water conservancy, national defense and other projects. [0003] At present, the process of domestic cement production mainly includes three processes of raw meal preparation, clinker calcination and grinding (made of cement). [0004] Raw meal in raw meal preparation includes: calcareous raw materials (limestone, marl, chalk, etc., accounting for 65-75% of the total weight), clay raw...

Claims

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Application Information

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IPC IPC(8): C04B7/52
CPCC04B7/52Y02P40/10Y02P40/121C04B7/48C04B7/527
Inventor 郑守全李培树李兆宏陈贤树莫光斌刘玉林
Owner 攀枝花攀煤水泥制品有限公司
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