Device and process for producing power plant fuel with coal precipitation plant coal slime slurry

A technology of coal slurry and coal preparation plant, which is applied in the field of equipment for producing power plant fuel from coal slurry slurry in coal preparation plants. It can solve the problems of long production and processing period, high operating cost, dust pollution, etc., and reduce construction investment and production cost. Reduce work intensity and ensure the effect of environmental protection requirements

Inactive Publication Date: 2016-05-18
邵杰
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that in the prior art, the process steps for drying coal slime are complicated, the process is cumbersome, the production process cycle is long, the cost is high, the energy consumption is large, and the dust pollution is serious.
[0004] To sum up, in the prior art, there are cumbersome and complicated procedures for coal slime slurry treatment and coal slime drying process in coal preparation plants; many equipments; high failure rate; low degree of automation; large energy consumption; many people; operating costs High; unstable operation, poor effect and many other problems

Method used

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  • Device and process for producing power plant fuel with coal precipitation plant coal slime slurry

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Embodiment 1

[0031]A device for producing power plant fuel with coal slurry in a coal preparation plant, including a coal slurry buffer pool 1, a flocculant tank 15, a horizontal screw centrifugal drying integrated machine 2, a gas-solid separator 3, and a power plant boiler 4; the coal slurry buffer The pool 1 is connected to the feed port 6 of the decanter centrifugal dryer 2 through the feed pipe 5, and the gas mixed dry material outlet 7 on the decanter centrifugal dryer 2 is connected to the gas-solid separator 3 through the pipeline, and the gas-solid separation The gas outlet 8 at the upper end of the device 3 is connected to the feedback gas inlet 10 of the power plant boiler 4 through the pipeline and the exhaust fan 9, and the vertical shaft flue 11 in the power plant boiler 4 is connected to the high-temperature gas inlet 12 on the decanter centrifugal drying integrated machine 2, The flocculant tank 15 is connected to the feed pipe 5 through the flocculant metering pump 14; the ...

Embodiment 2

[0038] A device for producing power plant fuel with coal slurry in a coal preparation plant, including a coal slurry buffer pool 1, a flocculant tank 15, a horizontal screw centrifugal drying integrated machine 2, a gas-solid separator 3, and a power plant boiler 4; the coal slurry buffer The pool 1 is connected to the feed port 6 of the decanter centrifugal dryer 2 through the feed pipe 5, and the gas mixed dry material outlet 7 on the decanter centrifugal dryer 2 is connected to the gas-solid separator 3 through the pipeline, and the gas-solid separation The gas outlet 8 at the upper end of the device 3 is connected to the feedback gas inlet 10 of the power plant boiler 4 through the pipeline and the exhaust fan 9, and the vertical shaft flue 11 in the power plant boiler 4 is connected to the high-temperature gas inlet 12 on the decanter centrifugal drying integrated machine 2, The flocculant tank 15 is connected to the feed pipe 5 through the flocculant metering pump 14; the...

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Abstract

The invention relates to the technical field of coal precipitation plant coal slime slurry treatment and coal slime comprehensive utilization, and specifically relates to a device and a process for producing a power plant fuel with coal precipitation plant coal slime slurry. The device comprises a coal slime slurry buffering tank, a flocculant tank, a horizontal screw centrifugation drying integrated machine, a gas-liquid separator, and a power plant boiler. The coal slime slurry buffering tank is connected with the feeding port of the horizontal screw centrifugation drying integrated machine. A gas mixing dry material outlet on the horizontal screw centrifugation drying integrated machine is connected with the gas-solid separator. A gas outlet on the upper end of the gas-solid separator is connected with a feedback gas inlet of the power plant boiler. A shaft flue is connected with a high-temperature gas inlet on the horizontal screw centrifugation drying integrated machine. The flocculant tank is connected with a feeding pipe. The device is an integrated system for directly producing low-water high0quality power plant fuel. The production process is simplified. Equipment, system investment and production operation costs are reduced.

Description

technical field [0001] The invention belongs to the technical field of coal slime slurry treatment and coal slime comprehensive utilization in coal preparation plants, and in particular relates to a device and a process for producing power plant fuel with coal slime slurry in coal preparation plants. Background technique [0002] At present, the coal preparation methods used in large-scale coal preparation plants are mainly dense medium, jigging, and flotation. Now the treatment and reuse of coal slime is a key content of mine wastewater treatment for special research. The more commonly used methods in coal preparation plants The dehydration recovery equipment for fine particle coal slime is mainly a filter press, and the moisture content of the produced coal slime is generally 23-28%. The production efficiency of the filter press is low, and the output coal slime has a high moisture content. There is also a horizontal screw centrifuge used to treat the coal slurry in the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/00
Inventor 邵杰
Owner 邵杰
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