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Single-stage multi-effect network chain closed coal slime drying system

A drying system and network chain technology, applied in the direction of drying solid materials, drying gas arrangement, drying solid materials without heating, etc., can solve the problems of whitening, limited heat source, pollutant discharge, etc.

Inactive Publication Date: 2021-05-07
BEIJING ZHONGKUANG BONENG ENERGY SAVING SCI &TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coal slime low-temperature steam rotary drying technology is a new type of environmental protection drying process, but it "uses steam as the drying heat source", the heat source is limited, there are pollutant emissions, there are problems such as dust removal and whitening, and the equipment occupies a large area. Disadvantages such as small production capacity, high energy consumption, and high operating costs

Method used

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  • Single-stage multi-effect network chain closed coal slime drying system
  • Single-stage multi-effect network chain closed coal slime drying system
  • Single-stage multi-effect network chain closed coal slime drying system

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Embodiment Construction

[0042] Such as figure 1 shown, combined with Figure 2-22 As shown, the single-stage multi-effect net chain closed coal slime drying system of the present invention includes a dryer and an air supply device, and the dryer includes a drying chamber 6, and the top of the drying chamber 6 is provided with a feed port, so The bottom of the drying chamber 6 is provided with a discharge port, and the drying chamber 6 is sequentially provided with an upper chain conveyor unit and a lower net chain conveyor unit from top to bottom. The on-line conveyor unit is provided with at least one on-line conveyor 8, and when there are more than two on-line conveyors 8, the two or more on-line conveyors 8 are arranged in sequence along the vertical direction. The lower net chain conveyor unit is provided with at least one lower net chain conveyor 17, and when the lower net chain conveyor 17 is set to more than two, the lower net chain conveyors 17 of more than two are sequentially moved along t...

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Abstract

The invention discloses a single-stage multi-effect network chain closed coal slime drying system which comprises a drying machine and an air supply device, wherein the drying machine comprises a drying cavity, a feeding port and a discharging port are formed in the drying cavity, and an upper network chain conveying unit and a lower network chain conveying unit are arranged in the drying cavity; the air supply device comprises a first heat pump unit, a second heat pump unit, a first air circulation pipeline and a second air circulation pipeline, wherein the first air circulation pipeline and the second air circulation pipeline are connected with the drying cavity. The invention aims to provide the single-stage multi-effect network chain closed coal slime drying system which is small in occupied area, low in energy consumption, low in operation cost, capable of achieving accurate drying and free of smoke and dust emission.

Description

technical field [0001] The invention relates to the field of coal slime drying, in particular to a single-stage multi-effect mesh chain closed coal slime drying system. Background technique [0002] my country is a country rich in coal and low in oil. For a long time, the supply of coal has been in a pattern of oversupply. According to the survey of coal mine washing plants all over the country, some of the coal slime produced in the coal production process are discharged and piled up on the spot, because the shape of the coal slime is extremely unstable, it flows by itself without forming, it will be lost when it meets water, and it will fly when it is air-dried , abandoned as waste, its environmental protection problem is much more serious than washing coal gangue, resulting in extremely serious environmental pollution. Another treatment method is to use a dryer to dry. The traditional coal slime drying process is mainly the high-temperature drying process of the hot blas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B5/14F26B17/04F26B21/00F26B21/02F26B25/02F26B25/00B02C4/02F25B30/00F28D5/02F28G9/00B01D36/04
CPCF26B5/14F26B17/04F26B21/001F26B21/02F26B25/02F26B25/00B02C4/02F25B30/00F28D5/02F28G9/00B01D36/04
Inventor 宋世果张立忠张峰刘戈杨惠茹赵廷江
Owner BEIJING ZHONGKUANG BONENG ENERGY SAVING SCI &TECH
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