CN210059031U

CN210059031U - Intelligent dry separator

Info

Publication number: CN210059031U
Application number: CN201920763831.2U
Authority: CN
Inventors: 李功民; 王子军; 王旭哲; 刘作强; 杨勇; 吕强杰
Original assignee: Tangshan Shenzhou Manufacturing Co ltd
Current assignee: Tangshan Shenzhou Machinery Group Co.,Ltd.
Priority date: 2019-05-26
Filing date: 2019-05-26
Publication date: 2020-02-14
Anticipated expiration: 2029-05-26

Abstract

The utility model discloses an intelligent dry separator, which comprises a feeding system, a conveying device, an identification device and an actuating mechanism, wherein the feeding system is positioned at the feeding end of the conveying system, and raw materials are uniformly fed into the conveying device by the feeding system; the recognition device is an X-ray source positioned above the conveying device and an X-ray detector positioned below the conveying device; actuating mechanism is the export towards the air nozzle of clean coal, waste rock movement track, and the feeder hopper comprises toper frame and vertical frame, and the lower extreme of toper frame is connected with the upper end of vertical frame, is equipped with two parallel arrangement's pivot on the inner wall of vertical frame, and two pivots are connected with the inner wall rotation of vertical frame, all are fixed with the feed plate in the pivot, work as two when the feed plate is in the horizontality, the mutual butt of one end of pivot is kept away from to two feed plates, be equipped with aggregate unit on the vertical frame, aggregate unit can drive two pivots and rotate simultaneously. The utility model discloses can avoid the jam of feeder hopper.

Description

Intelligent dry separator

Technical Field

The utility model belongs to the technical field of select separately, more specifically the utility model relates to an intelligence dry separation machine that says so.

Background

Coal separation mainly comprises two directions of water washing and dry separation, the water washing basically adopts the processes of jigging, dense medium, flotation and the like, and the method has the advantages of mature process, high separation precision and high processing capacity. The disadvantages are large construction investment, high production cost, large water resource consumption and waste, water consumption of about 0.1m3 for washing 1 ton of raw coal, and low-quality by-products such as coal slime. The dry separation is a coal separation method which exists and develops slowly in the last two decades and has the advantages of no water, simple process, less investment and low production cost, and the main representative process is a vibration and winnowing based composite dry coal separation process. From the coal distribution region, the west accounts for 80.4% of the country, the middle accounts for 15.2% of the country, and the east accounts for 4.4% of the country. The western part is the main distribution area of the coal in China and is just the dry and little water area, so compared with water washing, dry separation has wider requirements and prospects.

However, the existing composite dry coal separation technology does not always solve the defects of poor separation precision, small capacity, high requirement on coal types and the like. Therefore, the composite dry coal separation process is not popularized in a large scale, almost all the coal separation plants newly built in recent ten years adopt relatively mature jigging, dense media, flotation and other water washing processes, only very individual composite dry separation is adopted, and most of the coal separation plants are left unused or dismantled due to poor separation accuracy after being built.

In the coal dry separation technology, besides the composite dry separation, a coal gangue automatic separation technology based on gamma ray identification also exists, from 1988, China starts the research of the technology, and advances are made for more than two decades, and from 2005, the technology is gradually applied to the coal industry in practical application, such as Shenliang north coal mine, Beijing wood city Jian coal mine and the like. The existing mineral automatic sorting machine based on ray identification comprises a raw material feeding hopper, a coal receiving hopper, a gangue receiving hopper, a conveying belt conveyor arranged between the raw material feeding hopper and the coal and gangue receiving hopper, an identification sorting control mechanism and an execution mechanism, wherein the identification sorting control mechanism comprises a gamma ray source arranged below a conveying belt, a ray sensor arranged above the conveying belt and corresponding to the position of the gamma ray source, a measurement and control instrument electrically connected with the ray sensor and an ultrasonic emission receiver arranged above the conveying belt and electrically connected with the measurement and control instrument; the actuating mechanism is a high-frequency air valve arranged above the coal and gangue receiving hopper; the valve port of the high-frequency air valve is arranged towards the throwing track of the coal and the gangue.

The existing mineral automatic sorting machine is arranged according to channels, and channel detection and independent execution of each channel are realized. This may cause the air nozzles of each channel to hit the material that does not pass through the center of the channel inaccurately, which may affect the sorting effect. In addition, no matter whether the coal is large or small, the coal is performed by adopting the same model number air nozzle of the channel, and the situation that the small coal is brought out of the side small cleaned coal due to too large air volume when the small gangue is blown can occur. Meanwhile, when small blocks are sprayed, serious air quantity waste can be caused, and energy is not saved after long-term operation.

Actual production conditions show that the mineral automatic sorting machine based on ray recognition represented by the existing coal gangue automatic sorting machine has low sorting precision, the ratio of gangue entrained in clean coal and the ratio of clean coal entrained in gangue are both 10-20%, and the precision requirement of main sorting equipment of a coal preparation plant is far from being met, so that the mineral automatic sorting machine is difficult to widely apply and popularize.

In addition, the existing intelligent dry separator comprises a feeding system, a conveying device, an identification device, an execution mechanism, an air supply system, a dust removal system and an electric control system; the feeding system is positioned at the feeding end of the conveying system, and raw materials are uniformly fed onto the conveying device by the feeding system; the recognition device is an X-ray source positioned above the conveying device and an X-ray detector positioned below the conveying device; the identification device identifies the clean coal and the gangue through the physical properties of the clean coal and the gangue and also outputs the position information of the clean coal and the gangue on the conveying device to the execution mechanism; in addition, the feeding hopper of the feeding system is easy to block when too much material is put into the feeding hopper, and the feeding speed cannot be well controlled.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model provides a prevent that the feeder hopper from blockking up intelligent dry separation machine.

In order to achieve the above purpose, the utility model provides a following technical scheme: an intelligent dry separator comprises a feeding system, a conveying device, an identification device, an execution mechanism and three auxiliary systems, namely an air supply system, a dust removal system and an electric control system; the feeding system is positioned at the feeding end of the conveying system, and raw materials are uniformly fed onto the conveying device by the feeding system; the recognition device is an X-ray source positioned above the conveying device and an X-ray detector positioned below the conveying device; the executing mechanism is an air nozzle with an outlet facing to the motion trail of the clean coal and the gangue, the identifying device identifies the clean coal and the gangue through the physical properties of the clean coal and the gangue and also outputs the position information of the clean coal and the gangue on the conveying device to the executing mechanism, the feeding system comprises a feeding hopper, the feeding hopper consists of a conical frame and a vertical frame, the lower end of the conical frame is connected with the upper end of the vertical frame, two rotating shafts which are arranged in parallel are arranged on the inner wall of the vertical frame, the two rotating shafts are rotationally connected with the inner wall of the vertical frame, one rotating shaft is close to the left inner wall of the vertical frame, the other rotating shaft is close to the right inner wall of the vertical frame, a feeding plate is fixed on each rotating shaft, when the two feeding plates are in a horizontal state, the ends of the two feeding plates far away from the rotating shaft are mutually abutted, and the vertical frame is provided with a linkage device which can drive the two rotating shafts to rotate simultaneously.

Preferably, the linkage device comprises an air cylinder, the outer wall of the air cylinder is fixedly connected with the outer wall gauge of the vertical frame, a linkage cross rod is fixed on a piston rod of the air cylinder, a sliding groove is formed in the linkage cross rod, the vertical frame is extended from one end of each of two rotating shafts, a connecting rod is fixed on one end of each rotating shaft, extending out of the vertical frame, and a sliding shaft connected with the sliding groove in an inserting mode is fixed on the connecting rod.

Preferably, one end of the feeding plate, which is far away from the rotating shaft, is provided with an elastic layer.

Preferably, be fixed with the locating piece on the outer wall of vertical frame, two when the feed plate is in the horizontality, the side of going up of connecting rod and the downside butt of locating piece.

Preferably, the actuators are provided as air nozzles arranged in an array.

Preferably, the conveying device is a horizontally arranged conveyor belt or an obliquely arranged conveyor belt.

Preferably, the material of the elastic layer is provided as rubber.

To sum up, the utility model has the advantages that: 1. the intelligent dry separator adopts an intelligent identification method (density and shape identification), establishes a database adapted to the intelligent dry separator based on different coal quality characteristics, distinguishes coal and gangue through data analysis, and finally separates the coal and the gangue through an intelligent execution system; the feeding system transports the raw materials to the conveying device, and the conveying device evenly distributes the materials to the conveying belt; the recognition device is an X-ray source positioned above the conveying belt and an X-ray detector vertically below the conveying belt; the actuating mechanism is located the transmission band tail end, and up jetting is followed to the jetting direction, and after the system judged that the material is coal and waste rock, the physical position information that will spout conveys intelligent actuating mechanism to, and the nozzle that corresponds the position is opened to actuating mechanism linear array nozzle intelligence and is accomplished the screening, and the waste rock falls to the waste rock collection chute this moment, and the clean coal falls to the clean coal collection chute.

2. The linkage horizontal pole also can remove simultaneously when the removal through piston rod in the cylinder, and the sliding shaft can the relative sliding tray removal this moment to drive the rotation of feed plate, when two feed plates are in the horizontality, the material can not drop from vertical frame, when the piston rod reciprocating motion that makes a round trip of cylinder, makes the material follow and drops between two feed plates when driving feed plate pivoted, thereby avoids the material to take place to block up.

Drawings

FIG. 1 is a block diagram of one embodiment of an intelligent dry separator;

FIG. 2 is a system block diagram of an embodiment of an intelligent dry separator;

FIG. 3 is a perspective view of the feed hopper;

FIG. 4 is a top view of FIG. 3;

fig. 5 is a cross-sectional view at a-a in fig. 4.

Reference numerals: 1. a feed system; 2. a conveying device; 3. an identification device; 4. an X-ray detector; 5. an air nozzle; 6. an air supply system; 7. a gangue collection chute; 8. collecting the clean coal into a chute; 9. a protective cover; 10. an electronic control system; 11. a dust removal system; 12. a frequency converter; 13. a speed reducer; 14. an air storage tank; 15. an air compressor; 16. a pressure transmitter; 17. a full intelligent control platform; 18. a comprehensive controller; 19. data analysis software; 20. a data server; 21. an X-ray source; 22. a camera; 23. a conveyor; 24. positioning blocks; 25. a rotating shaft; 26. a connecting rod; 27. a sliding groove; 28. a slide shaft; 29. a cylinder; 30. a linkage cross bar; 31. a vertical frame; 32. a tapered frame; 33. a baffle plate; 34. a feeding plate; 35. an elastic layer.

Detailed Description

An embodiment of the present invention is further described with reference to fig. 1 to 5.

An intelligent dry separator comprises a feeding system 1, a conveying device 2, a recognition device 3, an execution mechanism, an air supply system 6, a dust removal system 11 and an electric control system 10; the feeding system 1 is positioned at the feeding end of the conveying device 2, and raw materials are uniformly fed onto the conveying device 2 through the feeding system 1; the recognition device 3 is an X-ray source 21 positioned above the conveying device and an X-ray detector 4 positioned below the conveying device 2; the execution mechanism is an air nozzle with an outlet facing to the motion trail of clean coal and gangue, the identification device 3 identifies the clean coal and the gangue through the physical properties of the clean coal and the gangue and also outputs the position information of the clean coal and the gangue on the conveying device 2 to the execution mechanism, the intelligent dry separator adopts an intelligent identification method (density and shape identification), a database which is adaptive to the intelligent dry separator is established based on different coal quality characteristics, the coal and the gangue are identified through data analysis, and finally the coal and the gangue are separated through an intelligent execution system; the feeding system 1 transports the raw materials to the conveying device 2, and the conveying device 2 evenly distributes the materials to the conveying belt; the recognition device 3 is an X-ray source 21 positioned above the conveying belt and an X-ray detector 4 vertically below the conveying belt; actuating mechanism is located the transmission band tail end, and up jetting is followed to the jetting direction, and after the system judged that the material is coal and waste rock, the physical position information that will spout conveys intelligent actuating mechanism to, and actuating mechanism linear array nozzle intelligence is opened the air jet 5 that corresponds the position and is accomplished the screening, and the waste rock falls to waste rock collection chute 7 this moment, and the clean coal falls to clean coal collection chute 8.

The identification device 3 is an X-ray system, the X-ray source 21 is a key part of the X-ray system, and is a relatively precise high-voltage power supply which can be divided into a high-voltage power supply and a filament power supply, wherein the filament power supply is used for heating a filament of an X-ray tube, the high-voltage output end of the high-voltage power supply is respectively arranged at two ends of a cathode filament and an anode target, a high-voltage electric field is provided to accelerate active electrons on the filament to flow to the anode target, a high-speed electron current is formed, and when the high-speed electron current impacts electrons on atoms and peripheral tracks, the electrons are dissociated and release energy, and X-rays are generated. X-rays are generated by excitation of the electrons in the inner layer of the atom, with a lower frequency and photon energy than gamma rays, and without radiation after power-off.

The X-ray detector 4 comprises a digital board and an analog board, each analog board having a plurality of detector channels. The detectors are arranged at equal intervals, and the intervals are set according to the requirement of identification resolution. The plurality of simulation plates are closely arranged, an X-ray detector matched with the width of the conveying device can be formed, rays penetrate through a detected object and reach the detector, substance equivalent atomic information can be obtained according to the size of signals received by the detector, and recognition and classification of substances are achieved.

The recognition device 3 can also output the position information of the clean coal and the gangue on the conveying device to a subsequent execution mechanism besides recognizing the clean coal and the gangue through the physical properties of the clean coal and the gangue. Preferably, the air nozzle is controlled to be opened and closed by a high-frequency electromagnetic valve, the air storage tank is connected with the air nozzle through an air pipe high-frequency electromagnetic valve, and the high-frequency electromagnetic valve is connected with the air nozzle through the air pipe.

The air nozzles 5 are modified into array arrangement from the arrangement form of one air nozzle for one channel of the existing coal gangue automatic separator, and the separation actuating mechanism intelligently opens corresponding high-frequency electromagnetic valves according to the position information of an executed object.

And optimizing the single large air nozzle which is sparsely arranged and used independently into a plurality of small air nozzles which are arranged in an array, and selecting the air nozzle type according to the gangue meeting the minimum granularity of a single block. When the executed object is a small block, one air nozzle is opened, and when the executed object is a large block, a plurality of air nozzles in the coverage of the large block are opened. Compared with the existing mode that the small blocks are all provided with the large air nozzles, the mode of combining the small blocks with one air nozzle and the large blocks with a plurality of air nozzles is lower in air consumption, more energy-saving and more accurate in sorting. The utility model discloses the density of air nozzle's size, quantity and range need be according to pan feeding granularity size, the design of quality isoparametric customization of intelligence dry separation machine.

The feed system includes the feeder hopper, the feeder hopper comprises toper frame 32 and vertical frame 31, the lower extreme of toper frame 32 is connected with the upper end of vertical frame 31, be equipped with two parallel arrangement's pivot 25 on the inner wall of vertical frame 31, two pivot 25 are connected with the inner wall rotation of vertical frame 31, a pivot 25 is close to the left inner wall of vertical frame 31, another pivot 25 is close to the right inner wall of vertical frame 31, all be fixed with feed plate 34 in the pivot 25, when two feed plates 34 are in the horizontality, the mutual butt of one end that pivot 25 was kept away from to two feed plates 34, be equipped with the aggregate unit on vertical frame 31, the aggregate unit can drive two pivot 25 and rotate simultaneously.

The linkage device comprises a cylinder 29, the outer wall of the cylinder 29 is fixedly connected with the outer wall of a vertical frame 31, a linkage cross rod 30 is fixed on a piston rod of the cylinder 29, a sliding groove 27 is formed in the linkage cross rod 30, the vertical frame 31 is extended from one end of each of two rotating shafts 25, a connecting rod 26 is fixed on one end of each rotating shaft 25 extending out of the vertical frame 31, a sliding shaft 28 connected with the sliding groove 27 in an inserting mode is fixed on the connecting rod 26, an elastic layer 35 is arranged at one end, away from the rotating shaft 25, of a feeding plate 34, the elastic layer 35 is made of materials and is arranged into rubber, a baffle 33 fixed with the inner wall of the vertical frame 31 is further fixed above the rotating shaft 25, the baffle 33 guides the materials to the feeding plate 34 and keeps away from the rotating shaft.

The use process of the linkage device comprises the following steps: the linkage cross rod 30 can also move simultaneously when moving through the piston rod in the cylinder 29, and the sliding shaft 28 can move relative to the sliding groove 27 at the moment, so that the feeding plates 34 are driven to rotate, when the two feeding plates 34 are in a horizontal state, materials cannot fall off from the vertical frame 31, and when the piston rod of the cylinder 29 reciprocates back and forth, the materials fall off between the two feeding plates 34 when the feeding plates 34 are driven to rotate, so that the materials are prevented from being blocked.

Be fixed with locating piece 24 on the outer wall of vertical frame 31, when two feed plates 34 were in the horizontality, the upside of connecting rod 26 and the downside butt of locating piece 24.

The air nozzles 5 of the actuating mechanism are arranged in an array mode, the air nozzles 5 at corresponding positions are opened intelligently according to position information of an executed object, the air compressor 15 is connected with the air storage tank 14, the air storage tank 14 is connected with the air nozzles 5, and the air storage tank 14 is further connected with the pressure transmitter 16.

The conveying device 2 is a horizontally arranged conveying belt or an obliquely arranged conveying belt, the rotation of a servo motor is controlled through a frequency converter 12, and the servo motor drives a driving wheel connected with the conveying belt through a connecting speed reducer 13.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An intelligent dry separator comprises a feeding system, a conveying device, an identification device, an execution mechanism and three auxiliary systems, namely an air supply system, a dust removal system and an electric control system; the method is characterized in that: the feeding system is positioned at the feeding end of the conveying system, and raw materials are uniformly fed onto the conveying device by the feeding system; the recognition device is an X-ray source positioned above the conveying device and an X-ray detector positioned below the conveying device; actuating mechanism is the air nozzle of export towards clean coal, waste rock movement track, feed system includes the feeder hopper, the feeder hopper comprises toper frame and vertical frame, the lower extreme of toper frame is connected with the upper end of vertical frame, be equipped with two parallel arrangement's pivot on the inner wall of vertical frame, two the pivot rotates with the inner wall of vertical frame and is connected.

2. The intelligent dry separator according to claim 1, wherein: the identification device identifies the clean coal and the gangue through the physical properties of the clean coal and the gangue, and also outputs the position information of the clean coal and the gangue on the conveying device to the execution mechanism.

3. The intelligent dry separator according to claim 1, wherein: one the pivot is close to the left inner wall of vertical frame, another the pivot is close to the right inner wall of vertical frame, all be fixed with the feed plate in the pivot, when two when the feed plate is in the horizontality, two the mutual butt of one end that the pivot was kept away from to the feed plate, be equipped with aggregate unit on the vertical frame, aggregate unit can drive two pivots and rotate simultaneously.

4. The intelligent dry separator according to claim 3, wherein: the linkage device comprises an air cylinder, the outer wall of the air cylinder is fixedly connected with the outer wall of the vertical frame, a linkage cross rod is fixed on a piston rod of the air cylinder, a sliding groove is formed in the linkage cross rod, the two vertical frames are respectively extended from one end of the rotating shaft, a connecting rod is respectively fixed at one end of the rotating shaft extending out of the vertical frames, and a sliding shaft inserted into the sliding groove is fixed on the connecting rod.

5. The intelligent dry separator according to claim 3, wherein: and an elastic layer is arranged at one end of the feeding plate, which is far away from the rotating shaft.

6. The intelligent dry separator according to claim 4, wherein: be fixed with the locating piece on the outer wall of vertical frame, two when the feed plate is in the horizontality, the side of going up of connecting rod and the downside butt of locating piece.

7. The intelligent dry separator according to claim 1, wherein: the actuating mechanism is provided with air nozzles arranged in an array.

8. The intelligent dry separator according to claim 1, wherein: the conveying device is a conveying belt arranged horizontally or a conveying belt arranged obliquely.

9. The intelligent dry separator according to claim 5, wherein: the elastic layer is made of rubber.