Screening device for ore mining

Abstract

The invention discloses a screening device for ore mining, and relates to the technical field of ore screening devices. The screening device comprises a bin body, a screening module is arranged in the bin body and comprises a transmission roller, a driven roller and a transmission belt, and a screen is connected between the two ends of the transmission belt; the vertical baffles A are connected to the inner wall of the bin body through connecting columns A, the inner walls of the vertical baffles A are connected with vertical baffles B through connecting columns B, and a bearing plate is arranged between the tops of the two vertical baffles B; an inclined plate A is arranged at the top end of the vertical baffle A. An inclined plate B inclining towards the inner wall is arranged at the bottom end of the vertical baffle A. A screening module is arranged in a bin body, a screen is connected between the two ends of a transmission belt of the screening module, a material distributing mechanism composed of a vertical baffle A, a bearing plate and a vertical baffle B is arranged on the two sides of the screening module, and a through discharging groove is formed in the portion, below the vertical baffle A, of the bin body; overall, ore screening and collecting are facilitated in the using process.

Description

Technical Field

[0001] The present invention belongs to the technical field of ore screening devices, and particularly relates to a screening device for ore mining. Background Art

[0002] Ore refers to the stones mined from mines containing certain valuable minerals. After being processed step by step such as crushing and grinding, the ore can be applied in engineering fields such as metal mines, metallurgical industry, chemical industry, construction industry, railway (highway) construction units, cement industry, and sand and gravel industry. After the ore is crushed or ground, it needs to be screened according to requirements, and thus classified according to particle size to facilitate different uses. Therefore, a screening device is required. The existing screening devices cannot screen and collect ores of various different sizes during use. Summary of the Invention

[0003] The purpose of the present invention is to provide a screening device for ore mining. By arranging a screening module in the bin body, a screen is connected between the two end parts of the transmission belt of the screening module, and a material distribution mechanism including a vertical baffle A, a receiving plate, and a vertical baffle B is arranged on both sides of the screening module, thus solving the problems raised in the background art.

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0005] The present invention is a screening device for ore mining, including a first conveying mechanism for conveying materials, and a screening mechanism is arranged directly above the first conveying mechanism; the screening mechanism includes a bin body in a rectangular tubular structure, and a plurality of screening modules are arranged in the bin body from top to bottom; the mesh sizes of several of the screening modules gradually decrease from top to bottom; the screening module includes driving rollers and driven rollers at both ends, a transmission belt is arranged on the driving rollers and the driven rollers, and a screen is connected between the two end parts of the transmission belt; the screening module further includes a vertical baffle A connected to the inner wall of the bin body through a connecting column A, a vertical baffle B is connected to the inner wall of the vertical baffle A through a connecting column B, and a "∧"-shaped receiving plate is connected between the tops of the two vertical baffles B; an inclined plate A extending to the lower part of the edge of the screen is arranged at the top end of the vertical baffle A, an inclined plate B inclined towards the inner wall is arranged at the bottom end of the vertical baffle A, and a vertical plate is arranged at the bottom end part of the inclined plate B; a rectangular hole is opened on the side wall of the bin body below the vertical baffle A, and a discharge chute in an inclined shape is arranged at the rectangular hole.

[0006] Furthermore, a second conveying mechanism is arranged at the discharge end of any one of the discharge chutes; the vertical baffle A, the inclined plate B, the inclined plate B, and the inclined plate A are integrally formed; the receiving plate and the vertical baffle B are integrally formed.

[0007] Further, a number of driving modules are provided in the bin body, which are in one-to-one cooperation with the screening module, and the driving module drives the transmission roller to rotate forward and backward.

[0008] Further, a controller is further included, and the controller is connected to the driving module and the infrared distance sensor; the infrared distance sensor is installed on the bottom side of one end of the receiving plate through a bracket; in the initial state, when the screen is located exactly in the middle between the transmission roller and the driven roller, an induction plate facing the infrared distance sensor is provided on the upper surface of the conveyor belt directly below the screen; the distance between the transmission roller and the driven roller is L, then the length of the screen is between 1 / 5L - 1 / 3L, and at this time, the infrared distance sensor detects that the distance between the induction plate and the infrared distance sensor is 1 / 2L + M.

[0009] Further, a cover plate is provided at the top of the bin body, and a feeding pipe is penetrated through the center of the cover plate; a "∧"-shaped baffle scraper is fixed on the inner wall of the bin body above both ends of any one of the screening modules, and the tips of the two baffle scrapers are arranged oppositely; in the initial state, the distance between the tip of the baffle scraper and one end of the screen is K, then M > K.

[0010] Further, the following steps are included:

[0011] Step 1: Feed the ore to be screened into the screening module at the top layer through the feeding pipe;

[0012] Step 2: Control the screens of all the screening modules to perform a cyclic movement in the horizontal direction;

[0013] Step 3: After a period of time, control the screens of the screening modules in the horizontal direction until at least one pass through the lower part of the baffle scrapers at both ends in the middle position.

[0014] Further, in Step 2, during the process of controlling the screen to move in the horizontal direction, control the distance between the induction plate and the infrared distance sensor to move between M - K + 1 / 2L and M + K + 1 / 2L;

[0015] In Step 3, after controlling the distance between the induction plate and the infrared distance sensor to reach M - K, control the screen to rotate in the opposite direction until the distance between the induction plate and the infrared distance sensor reaches M + K + L.

[0016] Further, on the inner walls of the bin body directly above any of the screening modules, baffle plates are connected through connecting rods; at least two stud bolts are threadedly connected to the top of the baffle plate, a support plate is provided at the end of the stud bolt, a positioning column is provided at the top of the support plate, and an operating part is provided at the top of the positioning column; an L-shaped baffle is further included, and the L-shaped baffle includes a horizontal plate supported on the support plate and a baffle body abutted against one side wall of the baffle plate; an opening for the positioning column to pass through is provided on the horizontal plate.

[0017] The present invention has the following beneficial effects:

[0018] In the present invention, a screening module is arranged in the bin body. A screen is connected between the two ends of the transmission belt of the screening module, and a material distribution mechanism including a vertical baffle plate A, a receiving plate, and a vertical baffle plate B is arranged on both sides of the screening module. A through discharge chute is arranged on the bin body below the vertical baffle plate A. Overall, it is convenient to screen and collect ores during use.

[0019] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a partial structural schematic diagram of the screening device of the present invention;

[0022] Figure 2 is Figure 1 front view;

[0023] Figure 3 is Figure 2 sectional view taken along line A-A in;

[0024] Figure 4 is Figure 3 partial enlarged view at A in;

[0025] Figure 5 It is a schematic diagram of the cooperation structure of the bin body and the screening module of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the screening module of the present invention;

[0027] Figure 7 It is a schematic diagram of the overall structure of the screening device of the present invention;

[0028] Figure 8 This is a schematic structural view of the baffle plate of the present invention. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention.

[0031] Please refer to Figure 1-5 As shown in FIGS. 7 and 8, the present invention is a screening device for ore mining, including a bin body 1, which is in a rectangular tubular structure, and a plurality of screening modules 2 are arranged on its inner wall from top to bottom. The mesh sizes of several screening modules 2 gradually decrease from top to bottom. A cover plate 13 is arranged at the top of the bin body 1, and a feeding pipe 14 is penetrated through the center of the cover plate 13; and a first conveying mechanism 6 for conveying materials is arranged directly below the bin body 1; and rectangular holes 11 are opened on the side walls of the bin body 1 on both sides and below any screening module 2, and a discharge chute 12 in an inclined shape is arranged at the rectangular hole 11, and a second conveying mechanism 7 is arranged at the discharge end of any discharge chute 12.

[0032] During use, the feeding pipe 14 feeds the ore to be screened into the screening module 2 at the top layer. After being screened by the plurality of screening modules 2 of the screening module 2, the ores with different particle sizes are screened and conveyed through the second conveying mechanism 7 and the first conveying mechanism 6 respectively.

[0033] Specifically, as Figure 6 , the screening module 2 provided by the present invention includes driving rollers 21 and driven rollers 22 at both ends. Transmission belts 23 are arranged on the driving rollers 21 and the driven rollers 22. A screen 24 is connected between the two ends of the transmission belt 23, and the ends of the driving rollers 21 and the driven rollers 22 are fixed to a cross beam 20; during installation, the screening module 2 is fixed to the inner wall of the bin body 1 by bolts passing through the cross beam 20.

[0034] As shown in the figure, in use, in order to facilitate the step-by-step screening using multiple screening modules 2, and after screening, the materials screened out by the upper screening module 2 are fed onto the lower screening module 2, and during use, the residues on each screening module 2 are cleaned from the screening module 2 and then collected so as to be discharged into the corresponding discharge chute 12; such as Figure 3-4 , in the present invention, the screening module 2 further includes a vertical baffle A51 connected to the inner wall of the bin body through a connecting column A50. The inner wall of the vertical baffle A51 is connected with a vertical baffle B56 through a connecting column B57. Between the tops of the two vertical baffles B56, a "∧"-shaped receiving plate 55 is connected; at the top end of the vertical baffle A51, there is an inclined plate A54 extending below the edge of the screen 24, and at the bottom end of the vertical baffle A51, there is an inclined plate B52 inclined towards the inner wall. At the bottom end of the inclined plate B52, there is a vertical plate 53; the vertical baffle A51, the inclined plate B52, the inclined plate B52 and the inclined plate A54 are integrally formed into a guide plate A; the receiving plate 55 and the vertical baffle B56 are integrally formed into a guide plate B; thus, in the above, by the cooperative setting of the guide plate B and the guide plate A, when in use, a screened material channel is formed by the guide plate B and the guide plate A, that is, when in use, the materials screened out from the screening module 2 enter the screened material channel and enter the lower screening module 2 or the first conveying mechanism 6 through the screened material channel; then at this time when in use, the residues on the screen 24 are cleaned from the screening module 2 from the edge of the screen 24. At this time, the residues fall onto the inclined plate A54 and then into the discharge chute 12.

[0035] It can be known that in the above setting, at one end of the bin body 1, there is also a driving module that cooperates with the screening module 2 one by one. The driving module drives the transmission roller 21 to rotate forward and backward, and then drives the screening module 2 to operate when in use.

[0036] In a possible implementation manner, the driving module is fixed outside the bin body 1, and the driving module includes a servo motor and a reducer. The servo motor is connected to the transmission roller through a coupling, and an encoder is installed at the end of the output shaft of the reducer.

[0037] When controlling the screening module 2 to screen the ore, it is necessary to control the screen 24 of the screening module 2 to perform a cyclic movement in the horizontal direction, that is, as shown in Figure 6, when in use, after controlling the screen 24 of the screening module 2 to move a certain distance to the left, then control the screen 24 of the screening module 2 to move a certain distance to the right, and repeat the above operation to complete the screening of the ore placed on the screen 24.

[0038] Based on the above settings, in order to control the left and right movement distances of the sieve mesh 24 during screening, the present invention further includes a controller, which is connected to the driving module and an infrared distance sensor; the infrared distance sensor is installed on the bottom side of one end of the receiving plate 55 through a bracket 58; in the initial state, when the sieve mesh 24 is located exactly in the middle between the driving roller 21 and the driven roller 22, at this time, an induction plate 57 facing the infrared distance sensor is provided on the upper surface of the conveyor belt 23 directly below the sieve mesh 24; the distance between the driving roller 21 and the driven roller 22 is 3.2 m, and the length of the sieve mesh 24 is 1 m. At this time, the infrared distance sensor detects that the distance between the induction plate 57 and the infrared distance sensor is 1.4 m.

[0039] Meanwhile, during use, in order to facilitate the cleaning of the screen residue on the sieve mesh 24, a "∧"-shaped baffle scraper 3 is fixed to the inner wall of the bin body 1 above both ends of any screening module 2; the tips of the two baffle scrapers 3 are arranged opposite to each other; in the initial state, the distance from the tip of the baffle scraper 3 to one end of the sieve mesh 24 is 0.6 m.

[0040] Based on the above settings, during the screening process, the distance between the induction plate 57 and the infrared distance sensor is controlled to move back and forth between 0.8 m and 2 m; meanwhile, when using the baffle scraper 3 to clean the screen residue on the sieve mesh 24, the sieve mesh 24 of the screening module 2 is controlled to pass through the lower sides of the baffle scrapers 3 at both ends at least once along the horizontal direction to its middle position; that is, when the distance between the induction plate 57 and the infrared distance sensor reaches 0.3 m, the sieve mesh 24 is controlled to rotate in the opposite direction until the distance between the induction plate 57 and the infrared distance sensor reaches 2.2 m.

[0041] Based on the above, during use, in order to prevent the ore on the screening module 2 from slipping from the two edge sides of the screening module 2 during the screening process, as Figure 5 , on both inner walls of the bin body 1 directly above any screening module 2, a baffle plate 4 is connected through a connecting rod 40.

[0042] During use, as Figure 8 , in order to facilitate adjusting the distance between the baffle plate 4 and the sieve mesh 24 according to actual needs, at least two stud bolts 43 are threadedly connected to the top of the baffle plate 4. A support plate 44 is provided at the end of the stud bolt 43, a positioning column 45 is provided at the top of the support plate 44, and an operating part 46 is provided at the top of the positioning column 45; there is also an L-shaped baffle, which includes a horizontal plate 42 supported on the support plate 44 and a baffle body 41 abutted against one side wall of the baffle plate 4; an opening for the positioning column 45 to pass through is provided on the horizontal plate 42.

[0043] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0044] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A screening device for ore mining, characterized in that: It comprises a first conveying mechanism (6) for conveying materials, and a screening mechanism is arranged directly above the first conveying mechanism (6); The screening mechanism comprises a warehouse body (1) in a rectangular tubular structure, wherein a plurality of screening modules (2) are arranged from top to bottom in the warehouse body (1), and the mesh sizes of the plurality of screening modules (2) gradually decrease from top to bottom; The screening module (2) comprises a driving roller (21) and a driven roller (22) located at two ends, a driving belt (23) is arranged on the driving roller (21) and the driven roller (22), and a screen (24) is connected between the two ends of the driving belt (23); The screening module (2) further comprises a vertical baffle plate A (51) connected to the inner wall of the bin body via a connecting column A (50); the inner wall of the vertical baffle plate A (51) is connected to a vertical baffle plate B (56) via a connecting column B (57); and a "∧"-shaped receiving plate (55) is connected between the tops of the two vertical baffle plates B (56); The top end of the vertical baffle A (51) is provided with an inclined plate A (54) extending to below the edge of the screen (24), the bottom end of the vertical baffle A (51) is provided with an inclined plate B (52) inclined toward the inner wall, and the bottom end of the inclined plate B (52) is provided with a vertical plate (53); A rectangular hole (11) is provided on the side wall of the bin body (1) below the vertical baffle A (51), and an inclined discharge chute (12) is provided at the rectangular hole (11).

2. A screening device for ore mining according to claim 1, characterized in that: A second conveying mechanism (7) is provided at the discharge end of any of the discharge troughs (12).

3. The ore mining screening device according to claim 1, characterized in that: The vertical baffle plate A (51), the inclined plate B (52), the inclined plate B (52) and the inclined plate A (54) are integrally formed; the receiving plate (55) and the vertical baffle plate B (56) are integrally formed.

4. The ore mining screening device according to claim 1, characterized in that: A plurality of drive modules that cooperate with the screening modules (2) are also arranged in the warehouse body (1), and the drive modules drive the transmission rollers (21) to rotate forward and reverse.

5. A screening device for ore mining according to claim 4, characterized in that: Also includes a controller, the controller is connected to the driving module and the infrared distance sensor; The infrared distance sensor is mounted on the bottom side of one end of the receiving plate (55) via a bracket (58); In the initial state, when the screen (24) is located in the middle of the driving roller (21) and the driven roller (22), a sensing plate (57) facing the infrared distance sensor is provided on the upper surface of the driving belt (23) located directly below the screen (24); The distance between the driving roller (21) and the driven roller (22) is L, and the length of the screen (24) is between 1 / 5L and 1 / 3L. At this time, the infrared distance sensor detects that the distance between the sensing plate (57) and the infrared distance sensor is 1 / 2L+M.

6. A screening device for ore mining according to claim 5, characterized in that: A cover plate (13) is arranged on the top of the silo (1), and a feed pipe (14) is arranged through the center of the cover plate (13); A "∧"-shaped material-blocking scraper (3) is fixed to the inner wall of the bin body (1) above the two ends of any of the screening modules (2), and the tips of the two material-blocking scrapers (3) are arranged opposite to each other; In the initial state, the distance between the tip of the material blocking scraper (3) and one end of the screen (24) is K, and M>K.

7. A screening device for ore mining according to claim 6, characterized in that: The steps include: Step 1: feeding the ore to be screened into the screening module (2) located at the top layer through the feeding pipe (14); Step 2, controlling the screens (24) of all the screening modules (2) to perform circular motion in a horizontal direction; Step 3: After a period of time, the screen (24) of the screening module (2) is controlled to move in the horizontal direction until it reaches its middle position and passes through the bottom of the material blocking scrapers (3) at both ends in sequence.

8. A screening device for ore mining according to claim 7, characterized in that: In step 2, the screen (24) is controlled to move in the horizontal direction, and the distance between the sensing plate (57) and the infrared distance sensor is controlled to move between M-K+1 / 2L and M+K+1 / 2L; In step 3, after the distance between the sensing plate (57) and the infrared distance sensor reaches MK, the screen (24) is controlled to rotate in the opposite direction until the distance between the sensing plate (57) and the infrared distance sensor reaches M+K+L.

9. The ore mining screening device according to claim 1, characterized in that: Material blocking plates (4) are connected to both inner walls of the bin body (1) located directly above any of the screening modules (2) via connecting rods (40).

10. The ore mining screening device according to claim 9, characterized in that: The top of the baffle plate (4) is threadedly connected with at least two studs (43), the ends of the studs (43) are provided with a support plate (44), the top of the support plate (44) is provided with a positioning column (45), and the top of the positioning column (45) is provided with an operating portion (46); It also includes an L-shaped baffle plate, which includes a transverse plate (42) supported on a support plate (44), and a baffle plate body (41) abutting against a side wall of the baffle plate (4); The transverse plate (42) is provided with an opening for the positioning column (45) to movably pass through.

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