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Preparation process of high producing rate, energy-saving water coal paste

A coal-water slurry and high-yield technology, which is applied in the direction of combustion methods, block/powder fuel preparation, and combustion equipment, can solve the problems of high energy consumption and low yield, and achieve the reduction of power consumption per ton of pulp and high yield High, strong grinding effect

Inactive Publication Date: 2005-03-23
北京柯林斯达能源技术开发有限公司
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Problems solved by technology

[0003] In order to overcome the shortcomings of low yield and high energy consumption of the existing coal-water slurry preparation method, the purpose of the present invention is to provide a high-yield, energy-saving coal-water slurry preparation method, which has high yield and energy saving

Method used

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  • Preparation process of high producing rate, energy-saving water coal paste
  • Preparation process of high producing rate, energy-saving water coal paste
  • Preparation process of high producing rate, energy-saving water coal paste

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] The pulping system with the φ2.4×8.0m wet ball mill designed by the inventor as the core used in the method of the present invention is taken as an example for illustration. according to figure 2 Shown, the technological process of coal-water slurry preparation method of the present invention is:

[0027] 1. fine crushing: the raw coal with a particle size of ≤100mm and a weight of 100t (being 7% in moisture) is weighed by a coal belt scale, and then sent into a vertical shaft type linear acceleration crusher (this crusher is owned by the applicant with a patent No. : ZL02232954.4 patented product) finely crushed to a particle size ≤ 2mm, sent to the belt conveyor.

[0028] 2. Premixing: the above-mentioned belt conveyor sends the finely crushed raw coal and the 0.93t coal-water slurry additive (this additive is a mixture of a dispersant and a...

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Abstract

The invention is a high-productivity energy-saving coal water fuel preparing method, relating to the ore wet-milling field, including the steps of finely crushing, premixing, pulp-milling and pulp-filtering, where the finely crushing step further reduces the particle size of raw material coal, the premixing step mixes raw material coal, coal water fuel additive and water together into a uniform strongly self-flowing pulp, the pulp-milling step has strong milling effect because of the increased filling rate of a miller, and the pulp-filtering step adopts centrifugal pulp filtering, so as to make the coal water fuel high-productivity and energy-saving.

Description

technical field [0001] The invention relates to a high-yield, energy-saving coal-water slurry preparation method and relates to the field of wet grinding. Background technique [0002] The coal-water slurry used as fuel or raw material is composed of a mixture of solid particle coal, additives and water. The existing coal-water slurry preparation methods are as follows: figure 1 As shown, it is mainly composed of crushing, refining, filtering, stirring, shearing and filtering. Due to the large number of steps selected and the unsatisfactory effect of the step operation, the result is that the yield of coal water slurry [that is, the amount of slurry produced per hour (h) (t)] is low, and the energy consumption [that is, the production per ton (t) The electricity required for the slurry (kwh)] is high. Contents of the invention [0003] In order to overcome the shortcomings of low yield and high energy consumption of the existing coal-water slurry preparation method, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32F23K1/02
Inventor 王隆国陈子彤梁立南
Owner 北京柯林斯达能源技术开发有限公司
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