Coal slurry apparatus production line of multilevel-one time and multilevel-many times

A production line, coal slurry technology, applied in the petroleum industry, liquid carbon-containing fuels, fuels, etc., can solve the problems of harsh combustion conditions, many equipments, poor fluidity, etc. Effects of burning conditions

Inactive Publication Date: 2011-01-19
贺来毅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this process and its equipment are that the process route is fixed, more equipment is used, and the energy consumption is larger; in addition, due to the large particle size of the coal powder contained in the prepared coal slurry, the resulting slurry has a high viscosity and poor fluidity. Good, the combustion conditions are more severe when used

Method used

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  • Coal slurry apparatus production line of multilevel-one time and multilevel-many times
  • Coal slurry apparatus production line of multilevel-one time and multilevel-many times
  • Coal slurry apparatus production line of multilevel-one time and multilevel-many times

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Experimental program
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Embodiment Construction

[0011] see figure 2 , the coal raw material (can choose lignite, long-flame coal with low degree of metamorphism, gas coal, fat coal, coking coal, lean coal and lean coal and coal of various media between them, such as 1 / 3 coking coal etc.) After coal washing and magnetic separation with a conventional coal washing magnetic separator, use an EP250×400 flange crusher to crush the coal into coal lumps with a maximum particle size of less than 100 mm.

[0012] Use a fine self-grinding machine to carry out secondary crushing on the coal block to make coal powder with a maximum particle size of less than 0.5 mm. Fine self-grinding machine adopts MZT crusher. After the pulverized coal is diluted with water, conventional dispersants and stabilizers are added into the kneader and stirring tank for kneading and stirring. After that, it is sent to a mixing mill for grinding to make primary coal water slurry. The primary coal water slurry is ground with an ultra-fine grinder to make ...

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Abstract

The invention discloses a multi-grade once and multitime coal slurry equipment technology manufacturing line, which comprises the following parts: coal washing magnetic cobber, alligator-typed bucker, kneading stirring tank, maturing tank and product reserving tank, wherein two or more groups of fine autogenous tumbling mill, kneading stirring tank, hybrid grinder and super-fine grinder are set between alligator-typed bucker and maturing tank; two or more hybrid grinders are selectable paralleling procedure; the selectable paralleling procedure is set between two or more super-fine grinders; the selectable paralleling procedure is set between alligator-typed bucker and each fine autogenous tumbling mill; the selectable paralleling procedure is connected in each group of hybrid grinder, super-fine grinder and maturing tank.

Description

technical field [0001] The invention relates to a production process of coal water slurry and its special equipment. The coal water slurry can replace heavy oil or oil residue in all kinds of oil-fired boilers. Background technique [0002] Coal water slurry is a coal-based liquid oil substitute fuel, which is divided into conventional coal water slurry, fine coal water slurry and low calorific value coal water slurry. The reason why coal slurry fuel can replace oil is that its important characteristics are that it can be pumped and atomized rapidly in the furnace like oil. [0003] In the prior art, the production line and technological process of producing coal-water slurry are as follows figure 1 shown. After the raw coal is washed and magnetically separated, it is crushed into coal powder by a jaw crusher and then enters the silo; the coal powder conveyed by the belt from the silo is diluted with water, then finely ground by a small ball mill, and then sieved by a cur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L1/32
Inventor 贺来毅
Owner 贺来毅
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