Coal dry-process grading upgrading integrated system and processing method thereof

A dry process and coal technology, applied in grain processing and other directions, can solve the problems of single process, low sorting accuracy, and inability to classify coal with full particle size, and achieve reasonable process, simple process and equipment, and low processing cost. Effect

Pending Publication Date: 2019-07-05
兖矿科技有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the coal dry separation equipment widely used mainly includes wind jigging separator, wind shaking table and air heavy medium fluidized bed separator, etc., the process is single, and only a single separation equipment is used for one-time separation , the sorting accuracy is not high, and it can only be used in some severe water shortage or cold areas; and the sorting equipment has very strict requirements on the particle size of the input material, and it is impossible to sort the full particle size of coal

Method used

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  • Coal dry-process grading upgrading integrated system and processing method thereof
  • Coal dry-process grading upgrading integrated system and processing method thereof
  • Coal dry-process grading upgrading integrated system and processing method thereof

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Experimental program
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Effect test

Embodiment 1

[0051] Such as figure 1 , figure 2 As shown, this embodiment provides an integrated system for classification and quality improvement of coal dry method, the system includes:

[0052] The crushing device (1), the first inlet port (101) of the crushing device, the outlet port (102) of the crushing device, the second inlet port (103) of the crushing device; the screening device (2), the first The inlet port (201), the first outlet port (202) of the screening device, the second outlet port (203) of the screening device; the fine coal separation device (3), the first inlet port of the fine coal separation device ( 301), the first outlet end (302) of the fine coal sorting device, the first inlet port (303) of the fine coal sorting device; the pulverizing device (4), the first inlet port (401) of the pulverizing device, The first outlet port (402) of the milling device, the second inlet port (403) of the milling device, the third inlet port (404) of the milling device; the partic...

Embodiment 2

[0056] Such as figure 1 , image 3 As shown, this embodiment provides an integrated system for coal dry classification and quality improvement, the system includes: a crushing device (1), a first inlet port (101) of the crushing device, an outlet port (102) of the crushing device, a crushing device The second inlet port (103) of the device; the screening device (2), the first inlet port (201) of the screening device, the first outlet port (202) of the screening device, the second outlet port of the screening device ( 203); the first inlet end (301) of the fine coal separation device (3), the first inlet end (301) of the fine coal separation device, the first outlet end (302) of the fine coal separation device, the first inlet port of the fine coal separation device (303); the first inlet port (401) of the milling device (4), the first outlet port (402) of the milling device, the second inlet port (403) of the milling device, the milling device The third inlet port (404) of t...

Embodiment 3

[0060] Such as Figure 4 , Figure 5 As shown, this embodiment provides an integrated processing method for coal dry classification and upgrading, and the method includes the following steps:

[0061] (01) The raw coal is subjected to a second screening to obtain a fine second screening mixture and a coarse second screening mixture.

[0062] In this step, the particle size of the raw coal is less than or equal to 100mm, the ash content is 40%, and the total sulfur is 2%; the particle size of the coarse second screening mixture is greater than 6mm; the particle size of the fine second screening mixture is less than or equal to 6mm ;

[0063] (02) Perform bulk sorting on the coarse second sieved mixture to obtain a first bulk sorted product and a second massive sorted product.

[0064]In this step, the ash content of the first block-shaped sorting object is greater than 80%, and the ash content of the second block-shaped sorting object is 30-50%.

[0065] (03) process the fi...

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Abstract

The invention provides a coal dry-process grading upgrading integrated system and a processing method thereof. The coal dry-process grading upgrading integrated system comprises a crushing device, a first inlet end of the crushing device, an outlet end of the crushing device, a second inlet end of the crushing device, a first inlet end of a screening device, a first outlet end of the screening device, a second outlet end of the screening device, a fine coal sorting device, a first inlet end of the fine coal sorting device, a first outlet end of the fine coal sorting device, a first inlet end of the fine coal sorting device, a grinding device, a first inlet end of the grinding device, a first outlet end of the grinding device, a second inlet end of the grinding device, a third inlet end ofthe grinding device, a granularity grading device, an inlet end of the granularity grading device, a first outlet end of the granularity grading device, a second outlet end of the granularity gradingdevice, a micro powder grading device, an inlet end of the micro powder grading device, a first outlet end of the micro powder grading device and a second outlet end of the micro powder grading device.

Description

technical field [0001] The invention relates to the technical field of coal separation, in particular to an integrated system for dry coal classification and quality improvement and a processing method thereof. Background technique [0002] At present, the process of coal dry separation, processing and upgrading is relatively simple, and the efficiency of dry separation is low, resulting in the application of dry coal preparation is not as extensive as that of wet coal preparation. However, compared with wet separation technology, dry separation technology has great advantages such as no need of water and no extremely difficult to handle coal slime, so it is necessary to find a high-efficiency dry separation technology. [0003] At present, the coal dry separation equipment widely used mainly includes wind jigging separator, wind shaking table and air heavy medium fluidized bed separator, etc., the process is single, and only a single separation equipment is used for one-tim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00B02C23/08
CPCB02C21/00B02C23/08
Inventor 付亮亮王振平白丁荣苗因德宋瑞领庞明瑾许文波王自祥
Owner 兖矿科技有限公司
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