Intelligent dry separator for segregated cloth

Abstract

The invention relates to the technical field of preparation equipment, in particular to a segregation material distribution intelligent dry separator which comprises a feeding device, a multi-stage material distribution device and a blowing device. The feeding device is used for grading materials according to particle sizes and enabling the materials to be arranged on the multi-stage material distributing device in a grading manner in the width direction of the multi-stage material distributing device; the multi-stage material distribution device can accelerate materials on the multi-stage material distribution device for multiple times; and a plurality of blowing ends of the blowing device are in one-to-one correspondence with the materials which are arranged in a grading manner. The feeding device reduces the particle size ratio of adjacent blocks in a graded feeding mode, so that the particle size ratio of the adjacent blocks is smaller, the overlapping area is reduced, the feeding device is matched with the multi-stage material distribution device to accelerate materials for multiple times, the distance between the blocks of the materials is increased, and the overlying phenomenon is reduced or even eliminated. The blowing device is provided with blowing ends of various specifications based on the particle size difference of the materials, so that the blowing efficiency and the execution precision are improved, and material sorting in a wider particle size range is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of ore dressing equipment, and in particular to an intelligent dry separator for separating and distributing materials. Background Art

[0002] The intelligent dry sorting machine is one of the mainstream equipment for dry coal sorting at present. During the sorting process, the intelligent dry sorting machine establishes an analysis model suitable for the coal quality characteristics of the selected raw coal based on the intelligent identification method, and digitally identifies coal and gangue through big data analysis, and divides the selected raw coal into two types of materials: clean coal and gangue. Finally, the gangue is blown through the high-pressure wind intelligent gangue discharge system to change the original movement trajectory of the gangue, so that the gangue enters a farther chute, while the clean coal that is not blown enters a closer chute, and finally two products, clean coal and gangue, are obtained.

[0003] At present, the intelligent dry sorting machine generally feeds materials through a vibrating distributor. If the processing capacity of the intelligent dry sorting machine is increased by increasing the feeding amount, the adhesion and stacking rate of the materials will increase. Too high a stacking rate will affect the sorting effect of the intelligent dry sorting machine. Based on this, it is very important to reduce the stacking between particles and improve the recognition and execution accuracy while increasing the processing capacity. Summary of the invention

[0004] The main purpose of the present invention is to provide an intelligent dry sorting machine for separating cloth materials, so as to improve the processing capacity and solve the problem of material adhesion and superposition caused by large processing capacity, thereby improving the sorting accuracy.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a separation material distribution intelligent dry sorting machine, comprising: a feeding device, a multi-stage material distribution device and a blowing device; The multi-stage material distribution device has a feeding end and a discharging end; the feeding device is arranged at the feeding end of the multi-stage material distribution device, and the blowing device is arranged at the discharging end of the multi-stage material distribution device; The feeding device is used to classify the materials according to their particle size, and to arrange the materials in a graded manner on the multi-stage distribution device along the width direction of the multi-stage distribution device; the multi-stage distribution device can accelerate the materials thereon multiple times; the several blowing ends of the blowing device correspond one-to-one to the graded arranged materials, so as to perform blowing and sorting on materials of different particle sizes.

[0006] Furthermore, the particle size ratio of materials at the same level is 2-3.

[0007] Further, the blowing device comprises a valve box, and the blowing end is a valve hole provided on the valve box; The valve box is divided into a plurality of spraying areas along the width direction of the multi-stage material distribution device, each of the spraying areas corresponds to the graded materials, and each of the spraying areas includes a plurality of valve holes; Or; on the multi-stage material distribution device, the particle size of the graded material gradually decreases along the width direction of the multi-stage material distribution device, and the size of all the valve holes also gradually decreases along the width direction of the multi-stage material distribution device.

[0008] Furthermore, the feeding device includes at least one layer of screen; the feeding device is provided with discharge ports corresponding to each level of material, and all the discharge ports are arranged at intervals along the width direction of the multi-stage material distribution device.

[0009] Furthermore, the feeding device includes a screen and a vibrating feeder; the screen is arranged above the vibrating feeder, the feeding direction of the vibrating feeder is the same as the conveying direction of the multi-stage distribution device, and the size of the screen holes gradually changes along the width direction of the multi-stage distribution device.

[0010] Furthermore, the feeding device includes a roller screen and a vibrating feeder; the roller screen is arranged above the vibrating feeder, and the feeding direction of the vibrating feeder is the same as the conveying direction of the multi-stage distribution device; the roller screen includes a plurality of rotatably arranged rollers, all of which are arranged at intervals along the width direction of the multi-stage distribution device, and along the width direction of the multi-stage distribution device, the distance between two adjacent rollers gradually changes.

[0011] Furthermore, the multi-stage material distribution device includes a primary material distribution belt, a secondary material distribution belt, a primary slide plate and a secondary slide plate; The primary fabric belt and the secondary fabric belt are arranged in a stepped manner, the primary slide plate and the secondary slide plate are both inclined, and the primary slide plate connects the feeding device and the primary fabric belt, and the secondary slide plate connects the primary fabric belt and the secondary fabric belt; the inclination angle of the secondary slide plate compared to the horizontal direction is Less than or equal to 20°.

[0012] Furthermore, the speed at which each level of material is discharged from the first level slide is , the speed of the material discharged from the primary fabric belt is , the speed of the material discharged from the secondary cloth belt is ;in: .

[0013] Furthermore, the length of the secondary slide Should meet: ; In the formula,

[0014] g is the acceleration due to gravity; It is the speed at which each level of material is discharged from the first-level distribution belt.

[0015] Furthermore, the multi-stage material distribution device includes a feeding roller, a secondary material distribution belt, a primary slide plate and a secondary slide plate; The feed roller and the secondary cloth belt are arranged in a stepped manner, the feed roller includes a plurality of rollers arranged in sequence, and the speed of the roller increases along the conveying direction of the material; the primary slide plate connects the feeding device and the feed roller, and the secondary slide plate connects the feed roller and the secondary cloth belt.

[0016] Furthermore, the speed of the roller at the end of the feed roller is the same as the speed of the secondary cloth belt.

[0017] Furthermore, the speed difference between each two adjacent rollers is in the range of 0.05-0.07 m / s.

[0018] Beneficial effects of the present invention: The present invention provides an intelligent dry sorting machine for separation and distribution, comprising: a feeding device, a multi-stage distribution device and a blowing device; the multi-stage distribution device has a feeding end and a discharging end; the feeding device is arranged at the feeding end of the multi-stage distribution device, and the blowing device is arranged at the discharging end of the multi-stage distribution device; the feeding device is used to classify the materials according to the particle size, and to arrange the materials in a graded manner on the multi-stage distribution device along the width direction of the multi-stage distribution device; the multi-stage distribution device can accelerate the materials thereon multiple times; a plurality of blowing ends of the blowing device correspond one-to-one to the graded arranged materials, so as to perform blowing sorting on the materials of different particle sizes.

[0019] The feeding device reduces the particle size ratio of adjacent blocks by graded feeding. Under the same feeding conditions, the particle size ratio between adjacent blocks is smaller, which reduces the overlap area between blocks. The multi-stage material distribution device accelerates the material multiple times to open the distance between each block of the material, thereby reducing or even eliminating the overlap phenomenon. The blowing device sets a variety of blowing ends based on the particle size difference of the material, thereby improving the blowing efficiency and execution accuracy, and realizing the separation of materials. The intelligent dry sorting machine can sort materials with a wider particle size range. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the objects being stacked during transportation; Figure 2A schematic diagram of the structure of a separation material distribution intelligent dry separator including a first multi-stage material distribution device provided in an embodiment of the present invention; Figure 3 It is a structural schematic diagram of the first feeding device; Figure 4 It is a structural schematic diagram of the first feeding device from another perspective; Figure 5 It is a structural schematic diagram of the second feeding device; Figure 6 It is a structural schematic diagram of the third feeding device; Figure 7 is a schematic structural diagram of a second multi-stage material distribution device; Figure 8 It is a structural schematic diagram of the valve box; Fig. 9 It is a structural schematic diagram of another implementation method of the valve box.

[0022] Icons: 1-feeding device; 11-screen; 111-discharge port; 12-roller screen; 121-roller; 13-vibrating feeder; 2-multi-stage material distribution device; 21-first stage slide plate; 22-second stage slide plate; 23-first stage vibration material distribution belt; 24-first stage material distribution belt; 25-feeding roller; 251-roller; 26-second stage material distribution belt; 3-blowing device; 31-valve box; 311-blowing area; 312-valve hole; 41-identification module; 42-receiving module; 5- Cover. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, in the coal sorting process, the wide particle size ratio of the material will be too large due to the feeding of the material, which will easily lead to overlapping. The probability of misidentification due to overlapping is higher, which directly affects the sorting index. To this end, an embodiment of the present invention provides a separation distribution intelligent dry sorting machine to solve the problem of adhesion and overlapping caused by the difference in particle size ratio under large processing capacity, while improving the processing capacity and ensuring the recognition accuracy. Among them, the particle size ratio refers to the number or mass ratio of particles in different particle size ranges in the material. It can be used to describe the particle size distribution characteristics of the material.

[0025] Specifically, Figures 2 to 9As shown, an intelligent material distribution dry sorting machine for separation provided by an embodiment of the present invention comprises: a feeding device 1, a multi-stage material distribution device 2 and a blowing device 3; the multi-stage material distribution device 2 has a feeding end and a discharging end; the feeding device 1 is arranged at the feeding end of the multi-stage material distribution device 2, and the blowing device 3 is arranged at the discharging end of the multi-stage material distribution device 2; the feeding device 1 is used to classify the material according to the particle size, and to arrange the material in a graded manner on the multi-stage material distribution device 2 along the width direction of the multi-stage material distribution device 2; the multi-stage material distribution device 2 can accelerate the material thereon multiple times; a plurality of blowing ends of the blowing device 3 correspond one-to-one to the graded arranged materials, so as to perform blowing sorting on materials of different particle sizes.

[0026] In this embodiment, the separation material intelligent dry sorting machine includes a feeding device 1, a multi-stage material distribution device 2 and a blowing device 3. The feeding device 1, the multi-stage material distribution device 2 and the blowing device 3 are arranged in sequence; optionally, an identification device is arranged at the multi-stage material distribution device 2 to obtain characteristic information of the material on the multi-stage material distribution device 2. So that the blowing device 3 can spray and sort the material based on the identification information of the identification device. The material transported from the upstream enters the feeding device 1, and the feeding device 1 classifies the material to obtain materials of various particle sizes; for example, the 300-50mm wide particle size material can be subdivided into 300-150mm, 150-125mm, 125-50mm and other narrow particle size materials, so as to realize the stepless particle size distribution of the material. The particle size ratio within the same narrow particle size partition is generally not more than 2-3, the size of adjacent blocks is more uniform, the particle size ratio is closer, and the probability of adhesion and overlap on the belt is lower. Under the condition of ensuring the same feeding, the particle size ratio of adjacent particles is smaller, the overlap phenomenon is reduced or even eliminated, the overlapping area between blocks is reduced, and the recognition accuracy, injection accuracy and processing capacity are improved.

[0027] The materials of different levels obtained by grading the materials by the feeding device 1 enter the multi-stage distribution device 2, and on the multi-stage distribution device 2, the materials of different levels are distributed in sequence along the width direction of the multi-stage distribution device 2, and the width direction of the multi-stage distribution device 2 is perpendicular to the conveying direction of the multi-stage distribution device 2. The materials of different levels form a plurality of material belts of materials of different particle sizes on the multi-stage distribution device 2, so that the particle sizes of adjacent blocks of materials on the multi-stage distribution device 2 are similar, thereby reducing the overlapping rate of the materials; the multi-stage material device can also accelerate the materials multiple times in the process of conveying the materials, so that the blocks of the materials are further pulled apart, thereby further reducing the overlapping rate of the materials; in the process of conveying the materials of different levels by the multi-stage distribution device 2, the recognition device can obtain the image information of all the materials on the multi-stage distribution device 2, and in the process of the multi-stage distribution device 2 throwing out the materials of different levels from its end, the blowing device 3 can blow and sort the thrown out blocks of the materials of different levels, thereby obtaining the final product. During the spraying and sorting process, the spraying device 3 is provided with spraying ends of various specifications based on the particle size of the material to adapt to the particle size difference of the material and improve the spraying efficiency and execution accuracy.

[0028] In the separation material distribution intelligent dry sorting machine provided in this embodiment, the feeding device 1 reduces the particle size ratio of adjacent blocks by graded feeding, and the particle size ratio between adjacent blocks is smaller under the same feeding conditions, so that the overlap area between blocks is reduced, and the multi-stage distribution device 2 is used to accelerate the material multiple times to open the spacing between each block of the material, thereby reducing or even eliminating the overlapping phenomenon. The blowing device 3 is provided with blowing ends of various specifications based on the particle size difference of the material, thereby improving the blowing efficiency and execution accuracy, and realizing the separation material distribution intelligent dry sorting machine to sort materials with a wider particle size range.

[0029] Optionally, in this embodiment, after the material is graded by the feeding device 1, the particle size ratio of the material at the same level is within a range of 2-3, so that the size of adjacent blocks is more uniform, the particle size ratio is closer, and the stacking rate of the material is reduced.

[0030] The intelligent dry separation machine for separating cloth provided by the embodiment of the present invention is as follows: Figure 8 and Fig. 9 As shown, the blowing device 3 includes a valve box 31, and the blowing end is a valve hole 312 arranged on the valve box 31; the valve box 31 is divided into a plurality of blowing areas 311 along the width direction of the multi-stage material distribution device 2, each blowing area 311 corresponds to a graded material, and each blowing area 311 includes a plurality of valve holes 312; or; on the multi-stage material distribution device 2, the particle size of the graded material gradually decreases along the width direction of the multi-stage material distribution device 2, and the size of all valve holes 312 also gradually decreases along the width direction of the multi-stage material distribution device 2.

[0031] In this embodiment, the blowing device 3 includes a valve box 31 connected to a high-pressure air source, and the valve box 31 is provided with a plurality of valve holes 312 to form the above-mentioned blowing end, and the valve holes 312 point to the end of the multi-stage material distribution device 2; the high-pressure air of the high-pressure air source is ejected through the valve holes 312 to change the original movement trajectory of the object to achieve sorting. The width direction of the valve box 31 is consistent with the width direction of the multi-stage material distribution device 2. As mentioned above, the separation material distribution intelligent dry sorting machine grades the material through the feeding device 1 to achieve graded feeding, and each level of material forms a plurality of material belts of different particle sizes on the multi-stage distribution device 2. Therefore, if the sizes of all valve holes 312 of the valve box 31 are set to be the same, the blowing accuracy for materials with smaller particle sizes is poor, or the blowing effect for materials with larger particle sizes is poor, and the original movement trajectory of the object cannot be changed; for this reason, in this embodiment, one way to set the valve hole 312 is to divide the valve box 31 into a plurality of blowing areas 311 along the width direction of the multi-stage distribution device 2, and the number of the blowing areas 311 is the same as the number of levels divided by the feeding device 1, and each blowing area 311 is provided with a plurality of valve holes 312, and the size of the valve hole 312 matches the size of the corresponding material, and the particle size difference of each level of material is adapted to the partitioned blowing, so as to improve the blowing efficiency and execution accuracy, and realize the separation material distribution intelligent dry sorting machine to sort materials with a wider particle size range. Another arrangement of the valve holes 312 is to gradually reduce the valve holes 312 of the valve box 31 along the width direction of the multi-stage material distribution device 2. In this embodiment, the particle size of the material changes steplessly along the width direction of the multi-stage material distribution device 2, and accordingly, the size of the valve holes 312 also changes steplessly along the width direction of the multi-stage material distribution device 2. The particle size change direction of each stage of material is the same as the size change direction of the valve holes 312, thereby adapting to the particle size differences of each stage of material, improving the blowing efficiency and execution accuracy, and realizing the separation distribution intelligent dry separator for sorting materials with a wider particle size range.

[0032] The intelligent dry sorting machine for separating and distributing materials provided in the embodiment of the present invention has three implementation modes of the feeding device 1. In the first implementation mode of the feeding device 1, as shown in FIG. Figure 3 and Figure 4 As shown, the feeding device 1 includes at least one layer of screen 11 ; the feeding device 1 is provided with discharge ports 111 corresponding to each level of material, and all the discharge ports 111 are arranged at intervals along the width direction of the multi-stage material distribution device 2 .

[0033] In this embodiment, the feeding device 1 includes a screen frame and a screen 11 arranged in the screen frame. The screen 11 is provided with at least one layer, and the screen 11 has a plurality of screen holes. The sizes of the screen holes of the same screen 11 are the same. When the screen 11 is provided with multiple layers, all the screens 11 are arranged at intervals up and down, and the screen holes of each screen 11 gradually decrease from top to bottom. The number of levels of the feeding device 1 is the number of the screens 11 plus one. For example, the feeding device 1 is provided with one layer of the screen 11, and the material is processed by the feeding device 1 to obtain two The feeding device 1 is provided with discharge ports 111 corresponding to the materials at each level, and the discharge ports 111 are sequentially arranged along the width direction of the feeding device 1 and are connected to the feeding end of the multi-stage material distribution device 2, and the discharge ports 111 are preferably located in the same horizontal plane; the discharge ports 111 are connected to the feeding end of the multi-stage material distribution device 2, and under the action of the guide baffle, the materials at each level are discharged from the corresponding discharge ports 111 and enter the multi-stage material distribution device 2.

[0034] In a second embodiment of the feeding device 1, Figure 5 As shown, the feeding device 1 includes a screen 11 and a vibrating feeder 13; the screen 11 is arranged above the vibrating feeder 13, the feeding direction of the vibrating feeder 13 is the same as the conveying direction of the multi-stage distribution device 2, and the size of the screen holes of the screen 11 gradually changes along the width direction of the multi-stage distribution device 2.

[0035] In this embodiment, the feeding device 1 includes a screen frame, a screen 11 arranged in the screen frame, and a vibrating feeder 13; the screen 11 is provided with a layer, and the screen frame can vibrate under the drive of a vibration source; the screen 11 has a plurality of screen holes, and the size of the screen holes gradually increases or decreases along the width direction of the multi-stage material distribution device 2; the screen 11 is located above the vibrating feeder 13, and the material is fed from the end of the screen 11 with smaller screen holes, and the material on the screen of the screen 11 is discharged from the end of the screen 11 with larger screen holes, and finally all falls into the vibrating feeder 13 below, that is, the material on the screen 11 is The moving direction is along the width direction of the multi-stage distribution device 2; the materials of each level obtained after being classified by the screen 11 enter the multi-stage distribution device 2 through the vibrating feeder 13, and the moving direction of the materials of each level on the vibrating feeder 13 is the same as the moving direction of the multi-stage distribution device 2, so that after the materials of each level enter the multi-stage distribution device 2, a plurality of material belts of materials of different particle sizes can be formed on the multi-stage distribution device 2; since the mesh size of the screen 11 gradually changes along the width direction of the multi-stage distribution device 2, a stepless particle size distribution can be achieved in this embodiment.

[0036] In a third embodiment of the feeding device 1, Figure 6As shown, the feeding device 1 includes a roller screen 12 and a vibrating feeder 13; the roller screen 12 is arranged above the vibrating feeder 13, and the feeding direction of the vibrating feeder 13 is the same as the conveying direction of the multi-stage material distribution device 2; the roller screen 12 includes a plurality of rotatably arranged rollers 121, all of the rollers 121 are arranged at intervals along the width direction of the multi-stage material distribution device 2, and along the width direction of the multi-stage material distribution device 2, the distance between two adjacent rollers 121 gradually changes.

[0037] In this embodiment, the feeding device 1 includes a roller screen 12 and a vibrating feeder 13; the roller screen 12 includes a plurality of rollers 121 arranged at intervals, and along the width direction of the multi-stage material distribution device 2, the spacing between two adjacent rollers 121 gradually increases or decreases; the roller screen 12 is located above the vibrating feeder 13, and the material is fed from the end of the roller screen 12 where the spacing between two adjacent rollers 121 is smaller, and the material on the roller screen 12 is discharged from the end of the roller screen 12 where the spacing between two adjacent rollers 121 is larger, and finally all falls onto the vibrating feeder 13 below, and the material on the roller The movement direction of the screen 12 is along the width direction of the multi-stage distribution device 2; the materials of each level obtained after being classified by the roller screen 12 enter the multi-stage distribution device 2 through the vibrating feeder 13, and the movement direction of the materials of each level on the vibrating feeder 13 is the same as the movement direction of the multi-stage distribution device 2, so that the materials of each level can form a plurality of material belts of different particle sizes on the multi-stage distribution device 2; because the spacing between two adjacent rollers 121 of the roller screen 12 gradually changes along the width direction of the multi-stage distribution device 2, therefore, the present embodiment can achieve stepless particle size distribution.

[0038] The multi-stage material distribution device 2 provided in the embodiment of the present invention comprises a primary conveying mechanism, a secondary conveying mechanism, a primary slide plate 21 and a secondary slide plate 22. Among them, the two ends of the primary slide plate 21 are respectively connected to the feeding device 1 and the primary conveying mechanism, and the two ends of the secondary slide plate 22 are respectively connected to the primary conveying mechanism and the secondary conveying mechanism, and the primary conveying mechanism and the secondary conveying mechanism are arranged in a stepped structure, that is, the primary conveying mechanism is arranged higher than the secondary conveying mechanism; after the material transported by the upstream equipment enters the multi-stage material distribution device 2, it passes through the primary slide plate 21, the primary conveying mechanism, the secondary slide plate 22 and the secondary conveying mechanism in sequence and then is discharged from the multi-stage material distribution device 2, and the primary slide plate 21 and the primary conveying mechanism are both used to accelerate the material, and the secondary conveying mechanism can accelerate the material, and can also keep the material at the speed when it is discharged by the primary conveying mechanism; the material does not contact the secondary slide plate 22 in the process of entering the secondary conveying mechanism from the primary conveying mechanism, and the secondary slide plate 22 is mainly used to control the material when it is thrown out by the primary conveying mechanism. The divergence range can prevent fine materials from being scattered; moreover, the material does not contact the secondary slide plate 22, which can avoid the material blocks hitting the slide plate and causing secondary tumbling due to the force of the vertical slide plate decomposed when the material blocks enter the secondary slide plate 22, thereby affecting the material distribution effect; at the same time, affected by factors such as the shape and size of each block in the material and the humidity and particle size ratio of the material, different blocks in the material will have different accelerations. If the blocks contact the secondary slide plate 22, the flat blocks will fit the secondary slide plate 22 and accelerate, while the round blocks will roll and accelerate on the secondary slide plate 22. In the case of wet stickiness, the friction of small pieces of material on the secondary slide plate 22 will increase, and the problem of material piling will occur when sliding out, affecting the material distribution effect. The fact that the material does not contact the secondary slide plate 22 during the process of entering the secondary conveying mechanism from the primary conveying mechanism can well solve the above problems.

[0039] Preferably, in this embodiment, the speed difference between the material when it is discharged from the primary slide 21 and the primary conveying mechanism is less than or equal to 1 m / s; when the secondary conveying mechanism is also used to accelerate the material, the speed difference between the material when it is discharged from the primary conveying mechanism and the secondary conveying mechanism is less than or equal to 1 m / s; a smaller speed difference can reduce the problem of secondary tumbling of objects.

[0040] In the separation material distribution intelligent dry sorting machine provided in the embodiment of the present invention, the above-mentioned multi-stage distribution device 2 has multiple implementation modes. In the first implementation mode of the multi-stage distribution device 2, the above-mentioned primary conveying mechanism and secondary conveying mechanism are both distribution belts. For the convenience of description, the primary conveying mechanism is the primary distribution belt 24, and the secondary conveying mechanism is the secondary distribution belt 26. Specifically, as Figure 2As shown, the multi-stage feeding device 2 includes a primary feeding belt 24, a secondary feeding belt 26, a primary slide plate 21 and a secondary slide plate 22; the primary feeding belt 24 and the secondary feeding belt 26 are arranged in a stepped manner, the primary slide plate 21 and the secondary slide plate 22 are both inclined, and the primary slide plate 21 connects the feeding device 1 and the primary feeding belt 24, and the secondary slide plate 22 connects the primary feeding belt 24 and the secondary feeding belt 26.

[0041] Among them, the length of the secondary slide plate 22 Should meet: ; In the formula, is the inclination angle of the secondary slide plate 22, ; g is the acceleration due to gravity.

[0042] In this embodiment, the multi-stage material distribution device 2 includes a primary slide 21, a secondary slide 22, a primary material distribution belt 24, and a secondary material distribution belt 26. The primary material distribution belt 24 and the secondary material distribution belt 26 are arranged in a stepped manner, and the primary material distribution belt 24 is arranged higher than the secondary material distribution belt 26, but the height difference between the two is smaller, and they are in a nearly horizontal state. The two ends of the primary slide 21 are connected to the feeding device 1 and the primary material distribution belt 24 respectively, and the two ends of the secondary slide 22 are connected to the primary material distribution belt 24 and the secondary material distribution belt 26 respectively. After the feeding device 1 classifies the materials to obtain materials of each level, the materials of each level are fed at an initial speed. Entering the first slide 21, the materials of each level slide on the first slide 21 and accelerate to , and the blocks of materials at each level are pulled apart during the sliding process on the primary slide 21, so that the blocks of materials at each level are evenly distributed and the overlapping rate is reduced; the materials at each level enter the primary fabric belt 24 from the primary slide 21, and the running speed of the primary fabric belt 24 is higher than the speed of the materials at each level when they are discharged from the primary slide 21; the primary fabric belt 24 further accelerates the materials at each level to a speed of , so that the blocks of material are further pulled apart, and the material can be spread into a layer on the primary cloth belt 24; at this time, the materials at each level and the primary cloth belt 24 are relatively stationary, that is, the running speed of the primary cloth belt 24 is ; The materials of each level are thrown out from a nearly horizontal state and enter the secondary cloth belt 26 through the secondary slide 22; in order to ensure that the materials on the secondary slide 22 do not contact and generate friction with the secondary slide 22, the inclination angle of the secondary slide 22 is less than or equal to 20°, preferably greater than or equal to 5° and less than or equal to 15°. The secondary slide 22 is mainly used to control the divergence range of the materials of each level when they are thrown out from the primary cloth belt 24, to prevent the fine materials from being scattered, and to prevent the blocks of the materials of each level from falling into the secondary cloth belt 26, to prevent the materials of each level from falling. The blocks of materials at each level tumble twice when entering the secondary cloth belt 26; it should be noted that the inclination angle of the secondary slide plate 22 is relative to the horizontal direction, and the horizontal direction here is relative to the actual use of the user, not the absolute direction; after the materials at each level enter the secondary cloth belt 26, the speed difference between the materials at each level and the secondary cloth belt 26 can further pull the blocks of materials at each level apart, that is, the running speed of the secondary cloth belt 26 is greater than the running speed of the primary cloth belt 24, and the blocks of materials at each level are accelerated to And they are separated into independent individuals for subsequent identification with a smaller adhesion and overlap rate.

[0043] The first level slide 21, the first level fabric belt 24 and the second level fabric belt 26 are used to accelerate the materials at each level, and the second level slide 22 is used for transition. In order to prevent the materials at each level from contacting with the second level slide 22 and affecting the movement path of the materials at each level, the length of the second level slide 22 is Should meet: ; in, is the time required for the materials of each level to be thrown out from the primary cloth belt 24 and fall onto the secondary cloth belt 26. Since the flight time of the materials of each level is short, the air resistance is negligible. Thus, it can be concluded that: ; Where g is the acceleration due to gravity; is the inclination angle of the secondary slide plate 22; It can be further concluded that: ; Preferably, , it can be concluded that the size range of the length L2 of the secondary slide plate 22 is: .

[0044] Furthermore, in this embodiment, ,in: ; ; ; In the formula, is the acceleration of each level of materials on the first level slide 21; The time for each level of material to slide on the first level slide 21; g is the acceleration due to gravity; is the inclination angle of the first-level slide plate 21; is the friction coefficient between each level of material and the first level slide plate 21; is the length of the first-level slide plate 21; ; ; In the formula, is the acceleration of each level of material on the primary material distribution belt 24; The materials of each level are accelerated on the primary material distribution belt 24 to the time required; g is the acceleration due to gravity; is the friction coefficient between each level of material and the primary cloth belt 24; ; ; In the formula, is the acceleration of each level of material on the secondary distribution belt 26; The materials of each level are accelerated on the secondary distribution belt 26 to the time required; g is the acceleration due to gravity; It is the friction coefficient between each level of material and the secondary distribution belt 26.

[0045] In this embodiment, the primary cloth belt 24 and the secondary cloth belt 26 are in almost the same plane, which can prevent material blocks from falling into the secondary cloth belt 26 and prevent material blocks from tumbling a second time when entering the secondary cloth belt 26, thereby improving the cloth effect.

[0046] In the second embodiment of the multi-stage material distribution device 2, as shown in FIG. Figure 7As shown, the multi-stage material distribution device 2 includes a feed roller 25, a secondary material distribution belt 26, a primary slide 21 and a secondary slide 22; the feed roller 25 and the secondary material distribution belt 26 are arranged in a stepped manner, the feed roller 25 includes a plurality of rollers 251 arranged in sequence, and the speed of the roller 251 increases along the conveying direction of the material; the primary slide 21 connects the feeding device 1 and the feed roller 25, and the secondary slide 22 connects the feed roller 25 and the secondary material distribution belt 26.

[0047] In this embodiment, the multi-stage material distribution device 2 includes a primary slide 21, a secondary slide 22, a feed roller 25 and a secondary material distribution belt 26. The feed roller 25 and the secondary material distribution belt 26 are arranged in a stepped manner, and the feed roller 25 is arranged higher than the secondary material distribution belt 26; the two ends of the primary slide 21 are connected to the feeding device 1 and the feed roller 25 respectively, and the two ends of the secondary slide 22 are connected to the feed roller 25 and the secondary material distribution belt 26 respectively. The above-mentioned primary slide 21 and the feed roller 25 are used to accelerate the materials at each level, and the feed roller 25 gradually accelerates the materials at each level through each roller 251. Specifically, the feeding roller 25 is composed of a plurality of rollers 251 arranged in sequence, and the rollers 251 are rotatably arranged on a frame, and a motor and other structures are arranged on the frame to drive the rollers 251 to rotate. The rotations of the rollers 251 are independent of each other, and there is a speed difference between two adjacent rollers 251 that is greater than or equal to 0.05m / s and less than or equal to 0.07m / s, so that the distance between each block of the material is gradually widened to reduce the stacking rate. Preferably, the speed difference between any two adjacent rollers 251 is fixed. After the feeding device 1 classifies the material to obtain each level of material, the material of each level is fed at an initial speed. Entering the first slide 21, the materials of each level slide on the first slide 21 and accelerate to , and the blocks of materials at each level are pulled apart during the sliding process on the primary slide plate 21, so that the blocks of materials at each level are evenly distributed and the overlapping rate is reduced; at the same time, the primary slide plate 21 transition is set upstream of the feeding roller 25, which can also play a certain buffering role on the materials, preventing the materials from impacting the roller 251 and causing damage to the roller 251. The materials of each level enter the feeding roller 25 from the primary slide plate 21. Since the speed of each roller 251 of the feeding roller 25 gradually increases, each roller 251 accelerates the materials of each level step by step. During the acceleration process, the blocks of materials of each level are pulled apart, so that the adhesion overlapping rate is reduced; the speed of the roller 251 at the end of the feeding roller 25 is the same as the speed of the secondary cloth belt 26, both of which are Under the action of the feeding roller 25, the materials of each level are fed from the end of the feeding roller 25 at a speed of The materials are discharged and enter the secondary cloth belt 26 through the secondary slide plate 22. The secondary slide plate 22 is used to control the divergence range of each level of materials when they are thrown out from the end of the feeding roller 25, so as to prevent the fine materials from being scattered, and to prevent the blocks of materials at each level from entering the secondary cloth belt 26 in a falling manner, so as to prevent the blocks of materials at each level from rolling twice when entering the secondary cloth belt 26. Since the speed of the end roller 251 of the feeding roller 25 is the same as the running speed of the secondary cloth belt 26, the posture of the materials on the secondary cloth belt 26 is consistent with that on the primary cloth belt 24. After the materials enter the secondary cloth belt 26, no secondary rolling will occur, and the stable distance is short. When the materials at each level are stable in the secondary cloth belt 26, the recognition device obtains the image information of the materials at each level for subsequent blowing sorting.

[0048] Optionally, the length and inclination angle of the secondary slide plate 22 in this embodiment can be set by referring to the length and inclination angle of the secondary slide plate 22 in the first embodiment of the multi-stage material distribution device 2, so it will not be repeated here.

[0049] In this embodiment, the primary vibrating cloth belt 23, the primary cloth belt 24 and the secondary cloth belt 26 are all composed of a belt, a driving roller and a driven roller. The belt is sleeved on the driving roller and the driven roller. The motor drives the driving roller to rotate, thereby driving the belt to move. Optionally, a plurality of supporting rollers can be arranged between the driving roller and the driven roller.

[0050] The intelligent dry separation machine for separating cloth provided by the embodiment of the present invention is as follows: Figure 2 As shown, the identification module 41 is arranged above the conveying surface of the secondary cloth belt 26 , and the receiving module 42 is arranged below the conveying surface of the secondary cloth belt 26 .

[0051] In this embodiment, the above-mentioned identification device includes an identification module 41 and a receiving module 42; the identification module 41 is arranged above the conveying surface of the secondary material distribution belt 26, the conveying surface is the surface that contacts with the materials at each level and is used to transport the materials at each level, and the above-mentioned identification module 41 includes an image recognition system and an X-ray device; the above-mentioned receiving module 42 is an X-ray linear array detector; the receiving module 42 is located in the loop formed by the belt of the secondary material distribution belt 26, and is used to cooperate with the X-ray device. When the above-mentioned separation material intelligent dry sorting machine can sort the three products of clean coal, medium coal and gangue, the image recognition system, the X-ray device and the X-ray linear array detector transmit the material category information of the monitored clean coal, medium coal and gangue and the position information on the secondary material distribution belt 26 to the subsequent blowing device 3, and the blowing device 3 selectively blows based on the information of the image recognition system, the X-ray device and the X-ray linear array detector to obtain the three products of clean coal, medium coal and gangue. When the above-mentioned separation material intelligent dry sorting machine can sort clean coal and gangue products, the image recognition system, X-ray device and X-ray linear array detector transmit the material category information of the clean coal and gangue monitored and the position information on the secondary material distribution belt 26 to the subsequent blowing device 3. The blowing device 3 selectively blows based on the information of the image recognition system, X-ray device and X-ray linear array detector to obtain clean coal and gangue products. Optionally, the above-mentioned recognition device can also use laser recognition and other equipment.

[0052] The separation distribution intelligent dry sorting machine provided in the present embodiment feeds materials in stages through the feeding device 1, and the materials are graded before entering the multi-stage distribution device 2 to form partitions of different particle sizes or a distribution state that changes step by step according to the particle size; and the multi-stage distribution device 2 accelerates the multi-stage distribution step by step, which can reduce the adhesion and overlap between objects, improve the stability of the material flow, improve the recognition accuracy, and broaden the input particle size of the equipment; the valve box 31 arranged in zones or steps can adapt to various particle size differences, avoid the problem of the valve box 31 being unable to match, and improve the blowing accuracy and sorting effect.

[0053] The separation material distribution intelligent dry sorting machine provided in this embodiment also includes a cover shell 5, and the feeding device 1, the multi-stage material distribution device 2, the blowing device 3 and the identification device are all located in the cover shell 5; the cover shell 5 is located at the connection between the feeding device 1 and the multi-stage material distribution device 2, and an interface for connecting with the dust collector is provided at the blowing device 3, which is used for dust removal when the separation material distribution intelligent dry sorting machine is running.

[0054] Another embodiment of the present invention further provides a coal sorting system, including the separation and distribution intelligent dry sorting machine described in any of the above embodiments.

[0055] In the description of the present invention, it should be noted that the terms "upper", "lower", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0056] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the inside of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent dry separation machine for separating cloth, characterized in that: include: A feeding device (1), a multi-stage material distribution device (2) and a blowing device (3); The multi-stage material distribution device (2) has a feeding end and a discharging end; the feeding device (1) is arranged at the feeding end of the multi-stage material distribution device (2), and the blowing device (3) is arranged at the discharging end of the multi-stage material distribution device (2); The feeding device (1) is used to classify materials according to particle size, and to arrange the materials in a graded manner on the multi-stage distribution device (2) along the width direction of the multi-stage distribution device (2); the multi-stage distribution device (2) is capable of accelerating the materials thereon multiple times; and the plurality of blowing ends of the blowing device (3) correspond one-to-one to the graded materials, so as to perform blowing sorting on materials of different particle sizes.

2. The intelligent dry separator for separating cloth according to claim 1 is characterized in that: The particle size ratio of materials at the same level is 2-3.

3. The intelligent dry separator for separating cloth according to claim 1 is characterized in that: The blowing device (3) comprises a valve box (31), and the blowing end is a valve hole (312) provided on the valve box (31); The valve box (31) is divided into a plurality of spraying areas (311) along the width direction of the multi-stage material distribution device (2), each of the spraying areas (311) corresponds to a graded material, and each of the spraying areas (311) includes a plurality of valve holes (312); Or; on the multi-stage material distribution device (2), the particle size of the graded material gradually decreases along the width direction of the multi-stage material distribution device (2), and the size of all the valve holes (312) also gradually decreases along the width direction of the multi-stage material distribution device (2).

4. The intelligent dry separator for separating cloth according to claim 1, characterized in that: The feeding device (1) comprises at least one layer of screen (11); the feeding device (1) is provided with discharge ports (111) corresponding to each level of material, and all the discharge ports (111) are arranged at intervals along the width direction of the multi-level material distribution device (2).

5. The intelligent dry separator for separation of cloth materials according to claim 1, characterized in that: The feeding device (1) comprises a screen (11) and a vibrating feeder (13); the screen (11) is arranged above the vibrating feeder (13); the feeding direction of the vibrating feeder (13) is the same as the conveying direction of the multi-stage material distribution device (2); and the size of the screen holes of the screen (11) gradually changes along the width direction of the multi-stage material distribution device (2).

6. The intelligent dry separator for separating cloth according to claim 1, characterized in that: The feeding device (1) comprises a roller screen (12) and a vibrating feeder (13); the roller screen (12) is arranged above the vibrating feeder (13), and the feeding direction of the vibrating feeder (13) is the same as the conveying direction of the multi-stage material distribution device (2); the roller screen (12) comprises a plurality of rotatably arranged rollers (121), all of the rollers (121) are arranged at intervals along the width direction of the multi-stage material distribution device (2), and along the width direction of the multi-stage material distribution device (2), the interval between two adjacent rollers (121) gradually changes.

7. The intelligent dry separator for separating cloth according to claim 1, characterized in that: The multi-stage material distribution device (2) comprises a primary material distribution belt (24), a secondary material distribution belt (26), a primary slide plate (21) and a secondary slide plate (22); The primary fabric belt (24) and the secondary fabric belt (26) are arranged in a stepped manner, the primary slide plate (21) and the secondary slide plate (22) are both arranged at an inclination, and the primary slide plate (21) connects the feeding device (1) and the primary fabric belt (24), and the secondary slide plate (22) connects the primary fabric belt (24) and the secondary fabric belt (26); the inclination angle of the secondary slide plate (22) relative to the horizontal direction is Less than or equal to 20°.

8. The intelligent dry separation machine for separating cloth materials according to claim 7 is characterized in that: The speed at which each level of material is discharged from the first level slide plate (21) is , the speed when discharged from the primary fabric belt (24) is , the speed when discharged from the secondary cloth belt (26) is ;in: .

9. The intelligent dry separation machine for separating cloth materials according to claim 8, characterized in that: The length of the secondary slide plate (22) Should meet: ; In the formula, g is the acceleration due to gravity; is the speed at which each level of material is discharged from the primary material distribution belt (24).

10. The intelligent dry separator for separation of cloth materials according to claim 1, characterized in that: The multi-stage material distribution device (2) comprises a material feeding roller (25), a secondary material distribution belt (26), a primary slide plate (21) and a secondary slide plate (22); The feed roller (25) and the secondary material distribution belt (26) are arranged in a stepped manner. The feed roller (25) includes a plurality of rollers (251) arranged in sequence, and the speed of the rollers (251) increases along the conveying direction of the material. The primary slide plate (21) connects the feeding device (1) and the feed roller (25), and the secondary slide plate (22) connects the feed roller (25) and the secondary material distribution belt (26).

11. The intelligent dry separator for separating cloth according to claim 10, characterized in that: The speed of the roller (251) at the end of the feed roller (25) is the same as the speed of the secondary material distribution belt (26).

12. The intelligent dry separator for separating cloth according to claim 10, characterized in that: The speed difference between any two adjacent rollers (251) is in the range of 0.05-0.07 m / s.

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