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Variable-diameter variable-intercept spiral sorting mechanism

A technology of spiral separation and intercept, applied in the direction of solid separation, wet separation, chemical instruments and methods, etc., can solve the problems of energy waste, low utilization rate of combustion equipment, exacerbated external loss and internal loss of clean coal, etc. Achieve the effects of convenient operation, improved equipment combustion efficiency, and enhanced sorting speed

Active Publication Date: 2019-05-03
CHINA SHENHUA ENERGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The increase of gray level in clean coal will lead to low utilization rate of combustion equipment, aggravate the external loss and internal loss in the process of using clean coal, and cause energy waste

Method used

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  • Variable-diameter variable-intercept spiral sorting mechanism
  • Variable-diameter variable-intercept spiral sorting mechanism
  • Variable-diameter variable-intercept spiral sorting mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a variable-diameter, variable-intercept spiral sorting mechanism, such as figure 1 As shown, it includes a central column 4, a spiral sorting sheet, a feed port 1 and a discharge port 5, wherein the spiral sorting sheet is spirally arranged on the outer wall of the central column 4; the feed port 1 is arranged on The upper part of the central column 4, the discharge port 5 is arranged at the bottom of the central column 4; the upper surface of the spiral sorting sheet is formed with a spiral sorting groove along the length direction of the spiral sorting sheet, and the The upper end of the spiral sorting tank is connected with the feed inlet 4, and the lower end is connected with the discharge port 5; the spiral sorting tank includes a variable-diameter spiral sorting tank part 2 and a variable-intercept spiral sorting tank part 3 , and the variable-diameter spiral sorting groove part 2 is located above the variable-intercept spiral sorting groo...

Embodiment 2

[0041] The variable-diameter, variable-intercept spiral sorting mechanism that present embodiment provides, such as image 3 As shown, the number of spiral sorting sheets is two, and the two spiral sorting sheets are wound on the central column 4 at intervals, and the two feeding ports 1 corresponding to the two spiral sorting sheets are arranged up and down. In this embodiment, the structures and connections of other parts are the same as those in Embodiment 1, and will not be described in detail in this embodiment.

Embodiment 3

[0043] This embodiment provides a spiral separator, such as Figure 4 and Figure 5 shown. The spiral separator comprises a mounting bracket 6, a feed distributor 7 and a shunt pipe 8, the feed distributor 7 is fixedly installed on the top of the installation bracket 6, and one end of the shunt pipe 8 is connected to the feed distributor 7 The bottom outlet is connected, the other end of the shunt pipe 8 is connected to the feed port 1, and the central column 4 is vertically fixed on the mounting bracket 6.

[0044] like Figure 4 and Figure 5 As shown, the number of the spiral sorting sheet and the shunt pipe 8 are equal and multiple (two are shown in the figure, and there can be more according to actual needs), each of the spiral sorting sheets passes through a The root shunt pipe 8 is connected with the bottom outlet of the feed distributor 7 .

[0045] The quantity of the spiral sorting mechanism in each described spiral sorter among the figure can be set, Figure 4...

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Abstract

The invention provides a variable-diameter variable-intercept spiral sorting mechanism. A spiral sorting groove is formed in the upper surface of a spiral sorting piece in the length direction of thespiral sorting piece, and comprises a variable-diameter spiral sorting groove part on the upper portion and a variable-intercept spiral sorting groove part located on the lower portion, all circles ofspiral inner diameters of the variable-diameter spiral sorting groove part are sequentially and progressively increased from top to bottom, in the motion process of the water flows in the sorting groove with the different diameters, the material can be greatly disturbed, the layered zoning effect of different materials can be reinforced, the ratios of all circles of screw pitches to the spiral inner diameters of the corresponding circles of the variable-intercept spiral sorting groove part are sequentially and progressively increased from top to bottom, after the materials layered through thevariable-diameter spiral sorting groove part enter the variable-intercept spiral sorting groove part, the materials can bear the large centrifugal force and water flow transport effect, the materialsorting speed can be reinforced, and the equipment treatment capacity is improved.

Description

technical field [0001] The invention relates to a spiral sorting device used in a coal preparation plant, in particular to a variable-diameter and variable-intercept spiral sorting mechanism. Background technique [0002] Coal is an important energy and the basic energy for the continuous progress and development of human society. In the raw coal mining production process, a large amount of primary coal slime will be produced. After the primary coal slime passes through a classifying cyclone group, a spiral separator, a high-frequency fine screen and a coal slime centrifuge, the coarse and refined coal slime product is finally obtained. Among them, the spiral separator is a sorting equipment for sorting fine-grained coal, and its sorting effect directly affects the clean coal ash and clean coal recovery rate of the final clean coal slime product. Therefore, a good spiral separator can not only increase the recovery rate of coal, but also reduce the grayness of clean coal an...

Claims

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Application Information

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IPC IPC(8): B03B5/52B03B11/00
Inventor 宋文革郭爱军关丙火张佳彬赵环宇苏健
Owner CHINA SHENHUA ENERGY CO LTD
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