CN212069473U

CN212069473U - Intelligent grading gangue separator

Info

Publication number: CN212069473U
Application number: CN202020601014.XU
Authority: CN
Inventors: 李春生; 郭大林; 卫中宽; 刘静川; 杨瑞峰
Original assignee: China Coal Handan Design Engineering Co ltd; China Coal Tianjin Design Engineering Co ltd
Current assignee: China Coal Handan Design Engineering Co ltd; China Coal Tianjin Design Engineering Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-12-04
Anticipated expiration: 2030-04-21

Abstract

An intelligent classification gangue selecting machine comprises a stirring type coal feeder, a classification gangue picking sieve, a coal and gangue automatic identification system and a gangue selecting turning plate, wherein an inlet of the stirring type coal feeder corresponds to an outlet of a coal mining machine, an outlet of the stirring type coal feeder corresponds to an inlet of the classification gangue picking sieve, a 'herringbone' coal and gangue separating chute is arranged behind the classification gangue picking sieve, the coal and gangue automatic identification system is arranged above the tail end of the classification gangue picking sieve, a coal chute of the herringbone coal and gangue separating chute and the gangue selecting turning plate of the gangue chute can be respectively fed into the coal chute and the gangue chute under the control of the coal and gangue automatic identification system and are arranged at the tail end of the classification gangue picking sieve, and the coal chute and the gangue chute are respectively led to a coal conveying belt and a gangue conveying belt. Compared with the prior art, the utility model adopts a 'distributing type coal feeder' to solve the problem of uniform distribution of materials; the 'cloth type coal feeder' and the equal-thickness screen are screened jointly, so that the problem that wet and sticky materials are difficult to screen is solved; the corrugated plate type sieve plate is adopted, so that the calculation of the material running track is simplified.

Description

Intelligent grading gangue separator

Technical Field

The utility model relates to a screening equipment, especially an intelligence is cash separator in grades.

Background

With the annual increase of national requirements on indexes such as coal mine safety production, environmental protection, production scale and the like, a batch of large and super-large coal mines are built, reformed and expanded in various places, the yield of raw coal is multiplied, and the yield of block gangue is increased along with the multiplication; meanwhile, as large-scale mechanized coal mining is pursued, the mining speed is pursued, the thinner gangue clamping layer, the fault and the collapse column are mined together with the coal bed and are all mixed into the raw coal of the mine, the ratio of bringing in the gangue is increased, the block gangue yield of the raw coal preparation system is greatly increased, manual gangue picking cannot be adapted, and mechanical gangue removal is imperative. At present, the commonly used mechanical waste rock discharging equipment comprises: a selective crusher, a movable sieve jig, a shallow slot separator, a single-section fixed sieve jig and the like. The traditional mechanical waste rock discharge equipment has the defects of large construction investment, more matched equipment, high production cost, low separation precision, poor system reliability, large underground construction difficulty and the like. Therefore, the intelligent grading gangue selecting machine capable of overcoming the defects of the traditional mechanical gangue discharging equipment is a technical problem to be solved at present.

Disclosure of Invention

The utility model aims to solve the technical problem that an intelligence is choice cash machine in grades is provided.

The technical proposal of the utility model for solving the technical problem is that:

an intelligent classification gangue selecting machine comprises a stirring type coal feeder, a classification gangue picking sieve, a coal and gangue automatic identification system and a gangue selecting turning plate, wherein an inlet of the stirring type coal feeder corresponds to an outlet of a coal mining machine, an outlet of the stirring type coal feeder corresponds to an inlet of the classification gangue picking sieve, a 'herringbone' coal and gangue separating chute is arranged behind the classification gangue picking sieve, the coal and gangue automatic identification system is arranged above the tail end of the classification gangue picking sieve, a coal chute of the herringbone coal and gangue separating chute and the gangue selecting turning plate of the gangue chute can be respectively fed into the coal chute and the gangue chute under the control of the coal and gangue automatic identification system and are arranged at the tail end of the classification gangue picking sieve, and the coal chute and the gangue chute are respectively led to a coal conveying belt and a gangue conveying belt.

As an optimized scheme of the utility model, stirring formula feeder for the screening cloth formula feeder of bottom plate for "sieve", the throughput and the mine production capacity of screening cloth formula feeder match.

As an optimal scheme of the utility model, "five sections of equal thickness" shale shaker for letting piece cash and piece coal keep linear motion are picked up in grades, the operating speed of the vibration frequency and the amplitude of picking up the cash screen in grades controlled "material on the screen" matches with the fastest action frequency that selects the cash to turn over the board. The screen surface angle of the classifying screen from the feeding end to the discharging end is gradually reduced, the amount of the materials on the screen surface is gradually reduced, and the movement speed is gradually reduced, so that the equal-thickness effect of the materials on the screen surface is ensured, and the improvement of the screening efficiency and the processing capacity of raw coal is facilitated.

As a preferred scheme of the utility model, the sieve plate of the grading gangue picking sieve is a circular or hexagonal punching sieve plate which is beneficial to improving the sieving efficiency; meanwhile, the sieve plate is a plurality of corrugated plates with separation function, which can reduce the transverse movement of the materials on the sieve surface and ensure the linear motion of the materials with large granularity on the sieve surface, and the length of the grading gangue picking sieve can meet the requirement that the materials on the sieve shake off the gangue blocks and the slack coal adhered to the surface of the gangue blocks before reaching the gangue selecting turning plate. The grading gangue picking screen forms a queuing area and an identification area relative to the oversize materials in the length direction, and the oversize materials vibrate and advance on the grading screen, so that lump gangue and lump coal surface adhered slack coal can be shaken off, and loss of the slack coal is reduced. The circular or hexagonal perforated corrugated plate sieve plate forms 10 material walking channels, effectively increases the space between materials and improves the sorting accuracy.

As an optimal scheme of the utility model, coal, cash automatic identification system survey grey device for "X ray", "the grey device is surveyed to X ray is qualitative to distinguish lump coal and piece cash, the selection cash turn over pneumatic plate turnover device, including turning over board and cylinder, the one end that turns over the board articulates the end at the corrugated sheet, articulated in the frame have articulated formula cylinder, the piston rod of articulated formula cylinder and the middle part handing-over of turning over the board that the selection cash turned over the board, the cylinder passes through pneumatic control device and origin connection, pneumatic control device and coal, cash automatic identification system signal connection, all articulated at the end of every corrugated sheet have a board that turns over, and every turns over the board and all has independent pneumatic control device and cylinder separately. When the lump coal arrives, the lump coal does not move and automatically enters a lump coal chute; when the lump waste rock reaches, the pneumatic push rod is started to act, and the lump waste rock is thrown out and fed into a lump waste rock chute.

As an optimal scheme of the utility model, be equipped with the coal washing shower nozzle of water spray above picking up the waste rock sieve in grades, and the coal washing shower nozzle of water spray is established in the front portion of coal, waste rock automatic identification system. Before image recognition, a lump coal washing device is added, and the recognition precision of the high-moisture raw coal is improved.

Compared with the prior art, the utility model adopts a 'distributing type coal feeder' to solve the problem of uniform distribution of materials; the 'cloth type coal feeder' and the equal-thickness screen are screened jointly, so that the problem that wet and sticky materials are difficult to screen is solved; the corrugated plate type sieve plate is adopted, so that the calculation of the material running track is simplified. Before image recognition, a lump coal washing device is added, and the recognition precision of the high-moisture raw coal is improved. The pneumatic gangue selecting turning plate device solves the defect of large dust pollution of an intelligent dry separator; the bottom plate of the stirring coal feeder is changed into a circular or hexagonal punching corrugated plate sieve plate, so that the length of the grading gangue picking sieve can be relatively reduced, the space occupied by equipment can be greatly saved, and the civil engineering investment can be reduced; unattended operation can be realized, and the labor environment of workers is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a front view of the schematic construction of item A in FIG. 1;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a cross-sectional view of FIG. 2;

FIG. 5 is a front view of the structural schematic of the part B of FIG. 1;

FIG. 6 is a left side view of FIG. 5;

fig. 7 is a schematic view of the novel component B, C, D, F, G, H in combination;

FIG. 8 is a schematic circuit diagram;

FIG. 9 is a pneumatic schematic;

in the figure, 1 is a shell, and 2 is a bearing seat; 3 is a stirring shaft, 4 is a supporting seat, 5 is a speed reducer, 6 is a coupler, and 7 is a speed regulating motor.

Detailed Description

As shown in the figure, the intelligent grading gangue selecting machine comprises a stirring type coal feeder A, a grading gangue picking sieve B, a coal and gangue automatic identification system C and a gangue selecting turning plate D, wherein an inlet of the stirring type coal feeder A corresponds to an outlet of a coal mining machine, an outlet of the stirring type coal feeder A corresponds to an inlet of the grading gangue picking sieve B, a herringbone coal and gangue separating chute F is arranged behind the grading gangue picking sieve B, the coal and gangue automatic identification system C is arranged above the tail end of the grading gangue picking sieve B, coal and gangue can be respectively fed into a coal chute of the herringbone coal and gangue separating chute F and the gangue selecting turning plate D of the gangue chute are arranged at the tail end of the grading gangue picking sieve B under the control of the coal and gangue automatic identification system C, and the coal chute and the gangue chute are respectively led to a coal conveying belt G and a gangue conveying belt H.

The stirring type coal feeder A is a screening and distributing type coal feeder with a sieve plate as a bottom plate, and the processing capacity of the screening and distributing type coal feeder is matched with the mine production capacity.

The grading waste rock picking sieve B is a vibrating sieve with five sections of equal thickness, which enables the lump waste rock and the lump coal to keep linear motion, and the running speed of the oversize material controlled by the vibration frequency and the amplitude of the grading waste rock picking sieve B is matched with the fastest action frequency of the waste rock selecting turning plate D.

The screen plate of the grading waste rock picking screen B is a circular or hexagonal punching screen plate which is beneficial to improving the screening efficiency; meanwhile, the sieve plate is a plurality of corrugated plates with separation function, which can reduce the transverse movement of the materials on the sieve surface and ensure the linear motion of the materials with large granularity on the sieve surface, and the length of the grading gangue picking sieve B can meet the requirement that the materials on the sieve shake off the gangue blocks and the slack coal adhered to the surfaces of the gangue blocks before reaching the gangue selecting turning plate D.

The automatic coal and gangue identification system C is an X-ray ash measuring device and an X-ray ash measuring device qualitatively distinguish block coal and block gangue, a gangue selecting turning plate D pneumatic turning plate device comprises a turning plate and an air cylinder, one end of the turning plate is hinged to the tail end of a corrugated plate, a hinged air cylinder is hinged to a rack, a piston rod of the hinged air cylinder is connected with the middle of the turning plate of the gangue selecting turning plate D, the air cylinder is connected with the origin through a pneumatic control device, the pneumatic control device is in signal connection with the automatic coal and gangue identification system C, the tail end of each corrugated plate is hinged with the turning plate, and each turning plate is provided with the respective independent pneumatic control device and the air cylinder.

And a water spraying coal washing nozzle is arranged above the grading waste rock picking sieve B and is arranged in front of the automatic coal and waste rock identification system C.

Claims

1. An intelligent grading gangue selecting machine comprises a stirring type coal feeder (A), a grading gangue picking sieve (B), a coal and gangue automatic identification system (C) and a gangue selecting turning plate (D), wherein the inlet of the stirring type coal feeder (A) corresponds to the outlet of a coal mining machine, the outlet of the stirring type coal feeder (A) corresponds to the inlet of the grading gangue picking sieve (B), it is characterized in that a herringbone coal and gangue separation chute (F) is arranged behind the grading gangue picking sieve (B), a coal and gangue automatic identification system (C) is arranged above the tail end of the grading gangue picking sieve (B), under the control of the coal and gangue automatic identification system (C), a coal chute capable of respectively feeding coal and gangue into the herringbone coal and gangue separation chute (F) and a gangue selecting turning plate (D) of the gangue chute are arranged at the tail end of the grading gangue picking screen (B), and the coal chute and the gangue chute are respectively communicated with a coal conveyer belt (G) and a gangue conveyer belt (H).

2. The intelligent grading gangue separator according to claim 1, wherein the stirring type coal feeder (A) is a screening and distributing type coal feeder with a sieve plate as a bottom plate, and the processing capacity of the screening and distributing type coal feeder is matched with the mine production capacity.

3. The intelligent grading gangue separator as claimed in claim 1, wherein the grading gangue picking screen (B) is a vibrating screen with five sections of equal thickness for keeping the lump gangue and the lump coal in linear motion, and the running speed of the oversize material controlled by the vibration frequency and amplitude of the grading gangue picking screen (B) is matched with the fastest action frequency of the gangue turning plate (D).

4. The intelligent grading gangue separator according to claim 3, wherein the screen plate of the grading gangue picking screen (B) is a circular or hexagonal punched screen plate which is beneficial to improving the screening efficiency; meanwhile, the sieve plate is a plurality of corrugated plates with separation function, which can reduce the transverse movement of the materials on the sieve surface and ensure the linear motion of the materials with large granularity on the sieve surface, and the length of the grading gangue picking sieve (B) can meet the requirement that the materials on the sieve shake off the gangue blocks and the slack coal adhered to the surfaces of the gangue blocks before reaching the gangue selecting turning plate (D).

5. The intelligent grading gangue selecting machine according to claim 4, wherein the coal and gangue automatic identification system (C) is an X-ray ash measuring device which qualitatively distinguishes coal blocks and gangue blocks, the gangue selecting turning plate (D) pneumatic turning plate device comprises a turning plate and an air cylinder, one end of the turning plate is hinged to the tail end of a corrugated plate, a hinged air cylinder is hinged to a frame, a piston rod of the hinged air cylinder is connected with the middle part of the turning plate of the gangue selecting turning plate (D), the air cylinder is connected with the source through a pneumatic control device, the pneumatic control device is in signal connection with the coal and gangue automatic identification system (C), the turning plate is hinged to the tail end of each corrugated plate, and each turning plate is provided with a pneumatic control device and an air cylinder which are independent.

6. The intelligent grading gangue separator according to claim 5, wherein a water spraying coal washing nozzle is arranged above the grading gangue picking screen (B), and the water spraying coal washing nozzle is arranged at the front part of the automatic coal and gangue identification system (C).