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A kind of high water content coal slime drying and upgrading system

A technology with high water content and coal slime, which is applied in the directions of dehydration/drying/thickened sludge treatment, drying solid materials, drying gas arrangement, etc., can solve problems such as unstable coal quality, and improve economic and environmental benefits, heat transfer Good quality and high drying efficiency

Active Publication Date: 2022-08-05
CHINA UNIV OF MINING & TECH +1
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Problems solved by technology

[0004] In order to solve the problem of unstable coal quality caused by the treatment of coal slime by pressure filter and plate and frame filter press, the invention proposes a drying and upgrading system for high water content coal slime

Method used

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  • A kind of high water content coal slime drying and upgrading system

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Embodiment Construction

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] like figure 1 As shown, a high-water content coal slime drying and upgrading system includes: a rotor dryer, and the interior of the rotor dryer cavity is a first drying chamber 1, a second drying chamber 2, and a third drying chamber 3 in order from front to back, The bottoms of the first drying chamber 1, the second drying chamber 2, and the third drying chamber 3 are respectively provided with a first air duct 4, a second ai...

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Abstract

The invention discloses a high-water content coal slime drying and upgrading system, comprising a rotor dryer, a first hot air blower, a second hot air blower and a third hot air blower at the lower end of the rotor dryer, and a front side wall of the rotor dryer is provided with a There is a pretreatment device connected with the first drying chamber for dispersing the coal slime, a discharge port connected with the third drying chamber is arranged on the side wall of the rear part of the rotor dryer; a tail gas port is arranged on the top of the second drying chamber , the inlet of the exhaust gas treatment device is connected with the exhaust gas outlet, and the outlet of the exhaust gas treatment device is connected with the pretreatment device. The invention adopts a pretreatment device to mechanically disperse the coal slime by the pretreatment device, so as to weaken the viscosity and internal competitiveness of the coal slime, prevent the coal slime from agglomeration, and improve the subsequent drying efficiency of the coal slime; , while increasing the contact area between the slime and the hot air, it reduces the adhesion of the slime to the rotor and the drying cavity, and reduces the energy consumption to a certain extent.

Description

technical field [0001] The invention relates to the technical field of mineral drying and sorting, in particular to a high-water content coal slime drying and upgrading system. Background technique [0002] my country's mineral resources are relatively rich, but the per capita possession is small, and the shortage of mineral resources is one of the important factors restricting my country's economic development. The development and utilization of mineral resources will cause environmental pollution to a certain extent. With the vigorous promotion of environmental protection by national policies, water spraying is currently required in the process of coal mining to reduce dust hazards. Therefore, to a certain extent, the content of raw coal will be increased. water volume. With the increase of coal mining output and the washing rate of raw coal in my country, the output of coal slime is also increasing year by year. Therefore, timely and effective solution to the problem of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B21/00F26B25/04C10L9/08
CPCC10L9/08C02F11/13F26B21/001F26B25/04
Inventor 张博赵跃民闫光辉段晨龙董良江海深赵鹏飞郭梦瑶高天洋
Owner CHINA UNIV OF MINING & TECH
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