Ore crushing and screening integrated device

Abstract

The invention discloses an ore crushing and screening integrated device, and relates to the technical field of ore processing equipment. The device comprises a cylindrical box body, the inner top wall of the cylindrical box body is connected with an annular upper grinding disc, and the lower surface of the upper grinding disc is of a conical surface structure; a rotating frame, an inner annular material channel and an outer annular material channel are rotationally connected in the cylindrical box body, the rotating frame is connected with a lower grinding disc, the lower grinding disc is of an integral cone structure, and the distance between the upper surface of the lower grinding disc and the lower surface of the upper grinding disc is gradually reduced from the center to the outer side; the lower grinding disc comprises a center grinding disc and an outer ring grinding disc located on the outer side of the center grinding disc, a discharging gap is reserved between the center grinding disc and the outer ring grinding disc, and an annular sieve plate flush with the upper surfaces of the center grinding disc and the outer ring grinding disc is connected between the center grinding disc and the outer ring grinding disc. Ore crushing is achieved through relative rotation of the lower grinding disc and the upper grinding disc, ore screening is conducted through the annular screening plate connected between the center grinding disc and the outer ring grinding disc, and the problems that existing equipment is large in size and low in ore crushing and screening efficiency are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of ore processing equipment, and particularly relates to an integrated ore crushing and screening device. Background Art

[0002] After ore is mined, it usually needs to be crushed, and the size of the ore is screened by a screening mechanism. After different-sized ores are screened out, further processing is carried out.

[0003] Chinese invention CN118002251B discloses an ore crushing and screening device. After the ore is initially crushed by the first crushing teeth and screened and classified, the large-sized ore and the small-sized ore are respectively re-crushed by the second crushing teeth and the third crushing teeth. When the turning rod and the pushing plate reciprocate intermittently at the right end, the small-sized materials accumulated under the second guide plate can be intermittently pushed into the second discharge pipe, and the two third crushing teeth are used to crush the small-sized materials. The intermittent feeding of the materials can also prevent the crushing teeth from being blocked by materials.

[0004] In the above prior art, after the ore is screened through the screen, the ore needs to be pushed into the first discharge pipe and the second discharge pipe respectively by the left-right reciprocating movement of the pushing plate, which not only increases the overall volume of the equipment, but also makes the overall ore processing, crushing and screening efficiency low, affecting the overall production efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide an integrated ore crushing and screening device, which realizes ore crushing by the relative rotation of the lower grinding disc and the upper grinding disc, and screens the ore through the annular screen plate connected between the central grinding disc and the outer ring grinding disc, solving the problems of large volume of the existing equipment and low ore crushing and screening efficiency.

[0006] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0007] The present invention relates to an integrated ore crushing and screening device, which includes a cylindrical box body. A feed channel is connected to the top wall of the cylindrical box body, and an annular upper grinding disc concentric with the feed channel is connected to the inner top wall of the cylindrical box body. The lower surface of the upper grinding disc has a conical surface structure. A rotating frame concentric with the upper grinding disc is rotatably connected inside the cylindrical box body, and an inner annular material channel and an outer annular material channel are fixedly connected. Both the inner annular material channel and the outer annular material channel are communicated with a discharge channel extending to the outside of the cylindrical box body. The rotating frame is fixedly connected with a lower grinding disc and is drivingly connected with a driving device for driving the lower grinding disc to rotate. The lower grinding disc is concentric with the upper grinding disc, and the whole of the lower grinding disc has a conical structure. The distance between the upper surface of the lower grinding disc and the lower surface of the upper grinding disc gradually decreases from the center to the outside. Among them, the lower grinding disc includes a central grinding disc and an outer ring grinding disc located outside the central grinding disc. A discharge gap is left between the central grinding disc and the outer ring grinding disc, and an annular sieve plate flush with its upper surface is connected therebetween. The inner annular material channel is located directly below the discharge gap for receiving the raw materials falling from the discharge gap, and the outer annular material channel is used for receiving the raw materials rolling down from the outside of the outer ring grinding disc.

[0008] As a preferred technical solution of the present invention, the rotating frame includes a transmission shaft rotatably connected to the bottom wall of the cylindrical box body, and the transmission shaft is fixedly connected with a plurality of cross bars arranged in a circumferential array.

[0009] As a preferred technical solution of the present invention, the rotating frame is fixedly connected with scraping plates located in the inner annular material channel and the outer annular material channel. By driving the scraping plates to rotate through the rotating frame, the raw materials in the inner annular material channel and the outer annular material channel are pushed into the discharge channel.

[0010] As a preferred technical solution of the present invention, the cross bar is slidably connected to the inner wall of the cylindrical box body.

[0011] As a preferred technical solution of the present invention, an annular guide rail is fixedly connected to the inner wall of the cylindrical box body, and a slider cooperating with the annular guide rail is fixedly connected to the cross bar.

[0012] As a preferred technical solution of the present invention, an annular baffle is fixedly connected to the inner wall of the cylindrical box body. The annular baffle is located above the annular guide rail and is inclined downward toward the inside of the cylindrical box body.

[0013] As a preferred technical solution of the present invention, the upper grinding disc is provided with an annular avoidance groove corresponding to the position of the annular sieve plate.

[0014] As a preferred technical solution of the present invention, crushing teeth are evenly distributed on the lower surface of the upper grinding disc.

[0015] As a preferred technical solution of the present invention, crushing grooves are evenly distributed in a circle on the upper surface of the lower grinding disc.

[0016] As a preferred technical solution of the present invention, the outer annular material channel includes an annular folding plate with an L-shaped cross-section, and an outer annular material channel is formed by enclosing between the annular folding plate and the inner wall of the cylindrical box.

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

[0018] In the present invention, the upper grinding disc with a conical surface structure on the lower surface and the lower grinding disc with a conical structure rotate relative to each other to achieve ore crushing, making the ore crushing more efficient. And there is a discharge gap between the central grinding disc and the outer ring grinding disc, and an annular sieve plate is connected between the central grinding disc and the outer ring grinding disc for ore screening, so that the ore is screened through the annular sieve plate during the ore crushing process, reducing the situation that the ore that does not need to be crushed occupies the crushing space of the upper grinding disc and the lower grinding disc, thereby facilitating to improve the overall ore crushing and screening efficiency.

[0019] Meanwhile, by arranging the upper grinding disc and the lower grinding disc vertically, and screening between the central grinding disc and the outer ring grinding disc, and all components are located in the cylindrical box, the overall structure is more compact, effectively reducing the overall volume, which is beneficial to improving the convenience of hoisting and handling.

[0020] 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

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic structural diagram of an integrated ore crushing and screening device of the present invention;

[0023] Figure 2 It is Figure 1 a schematic structural diagram from a bottom view perspective;

[0024] Figure 3 It is Figure 1 a front view;

[0025] Figure 4 It is Figure 3 a top view;

[0026] Figure 5 It is Figure 3 a cross-sectional view taken along line A-A in

[0027] Figure 6 It is Figure 4Cross-sectional view taken along line B-B;

[0028] Figure 7 Structural schematic diagram of the upper grinding disc;

[0029] Figure 8 Structural schematic diagram of the rotating frame and the lower grinding disc;

[0030] Figure 9 is Figure 8 Structural schematic diagram from the bottom-up perspective;

[0031] Figure 10 Structural schematic diagram of the interior of the cylindrical box body;

[0032] Figure 11 Half-sectional view of the cylindrical box body;

[0033] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0034] 1 - cylindrical box body, 2 - upper grinding disc, 3 - rotating frame, 4 - lower grinding disc, 5 - driving device, 101 - feeding channel, 102 - inner annular material channel, 103 - outer annular material channel, 104 - discharging channel, 105 - annular guide rail, 106 - slider, 107 - annular baffle, 201 - annular avoidance groove, 301 - transmission shaft, 302 - cross bar, 303 - scraping plate, 401 - central grinding disc, 402 - outer ring grinding disc, 403 - annular sieve plate, 404 - crushing groove. Detailed implementation manners

[0035] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the 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 therefore should not be construed as a limitation to the present invention.

[0037] Please refer to Figures 1 - 3As shown, the present invention is an integrated ore crushing and screening device, comprising a cylindrical box body 1, which is supported and fixed by a support column or a bracket. The top wall of the cylindrical box body 1 is connected with a feed channel 101, the lower end of the feed channel 101 leads to the inside of the cylindrical box body 1, and the upper end of the feed channel 101 is connected with a hopper for easy feeding.

[0038] like Figures 4 - 6 As shown, the inner top wall of the cylindrical box body 1 is fixedly connected with an annular upper rolling plate 2 which is arranged concentrically with the feed channel 101 by bolts. The lower surface of the upper rolling plate 2 is a conical surface structure, and the lower surface of the upper rolling plate 2 gradually tilts downward from the center toward the outside.

[0039] The cylindrical box body 1 is rotatably connected with a rotating frame 3 arranged concentrically with the upper roller plate 2, and is fixedly connected with an inner annular material channel 102 and an outer annular material channel 103. Specifically, the rotating frame 3 includes a transmission shaft 301 rotatably connected to the bottom wall of the cylindrical box body 1, and the upper end of the transmission shaft 301 is fixedly connected with six or more cross bars 302 arranged in a circumferential array.

[0040] like Figure 10 and 11 As shown, the inner annular channel 102 and the outer annular channel 103 are both arranged concentrically with the upper grinding disc 2, and are both connected to a discharge channel 104 extending to the outside of the cylindrical box body 1. The discharge channel 104 can be opened vertically and pass through the bottom wall of the cylindrical box body 1.

[0041] In addition, the inner annular channel 102 has a U-shaped cross-section, and the outer annular channel 103 includes an annular folded plate with an L-shaped cross-section. The annular folded plate and the inner wall of the cylindrical box body 1 are enclosed to form the outer annular channel 103. The outer annular channel 103 is formed by enclosing the annular folded plate and the inner wall of the cylindrical box body 1, which is beneficial to reducing the processing difficulty of the outer annular channel 103 and reducing processing materials, which is beneficial to reducing the overall production cost.

[0042] The lower grinding disc 4 is fixedly connected to the cross bar 302 of the rotating frame 3 by bolts or screws, and the transmission shaft 301 of the rotating frame 3 is transmission-connected to the driving device 5. The transmission shaft 301 can pass through the bottom wall of the cylindrical box body 1. The driving device 5 can be directly connected and fixed to the bottom wall of the cylindrical box body 1, and transmit to the transmission shaft 301, so as to drive the transmission shaft 301 to rotate through the driving device 5, thereby driving the lower grinding disc 4 to rotate.

[0043] Specifically, the lower millstone 4 is concentrically arranged with the upper millstone 2, and the lower millstone 4 has an overall conical structure, and the distance between the upper surface of the lower millstone 4 and the lower surface of the upper millstone 2 gradually decreases from the center to the outside, so that the ore raw materials entering from the feed channel 101 fall into the center position of the lower millstone 4. Due to the conical structure, the ore raw materials will roll downward along the surface of the lower millstone 4 during the rotation of the lower millstone 4, and the lower millstone 4 and the upper millstone 2 rotate relative to each other. As the distance between the two gradually decreases, the ore is crushed.

[0044] like Figure 8 and 9 As shown, the lower millstone 4 includes a central millstone 401 and an outer ring millstone 402 located outside the central millstone 401. A discharge gap is left between the central millstone 401 and the outer ring millstone 402, and an annular screen plate 403 flush with their upper surfaces is connected to each other, so that after the ore raw materials crushed between the central millstone 401 and the upper millstone 2 pass through the annular screen plate 403, the ore that does not need to be further crushed is screened out and directly discharged through the discharge gap, reducing the situation where the ore that does not need to be crushed occupies the crushing space of the upper millstone 2 and the lower millstone 4, thereby helping to improve the overall ore crushing and screening efficiency.

[0045] At the same time, crushing teeth are evenly distributed on the lower surface of the upper grinding plate 2, which are not shown in the figure. Crushing grooves 404 are evenly distributed on the circumference of the upper surface of the lower grinding plate 4. By setting crushing teeth, or crushing grooves 404, or setting crushing grooves 404 and crushing teeth at the same time, the crushing effect of the ore raw materials is further improved.

[0046] like Figure 7 As shown, the upper rolling plate 2 is provided with an annular avoidance groove 201 corresponding to the position of the annular screen plate 403 to prevent the upper rolling plate 2 from squeezing the ore material passing through the surface of the annular screen plate 403 and causing damage to the annular screen plate 403.

[0047] The remaining ore materials continue to roll down to the surface of the outer ring rolling plate 402, and then the outer ring rolling plate 402 and the upper rolling plate 2 continue to crush the ore materials, and the crushed ore materials roll down from the surface of the outer ring rolling plate 402. At the same time, the inner ring material channel 102 is located directly below the discharge gap, and is used to receive the materials falling from the discharge gap, and the outer ring material channel 103 is used to receive the materials rolling down from the outer side of the outer ring rolling plate 402.

[0048] In addition, the rotating frame 3 is fixedly connected to the scraper plate 303 located in the inner annular channel 102 and the outer annular channel 103 through a connecting rod. The scraper plate 303 is driven to rotate by the rotating frame 3, so that the scraper plate 303 moves along the inner annular channel 102 and the outer annular channel 103, thereby using the scraper plate 303 to push the raw materials in the inner annular channel 102 and the outer annular channel 103 into the discharge channel 104.

[0049] As a preferred embodiment, as Figure 8 and 11 shown, the cross bar 302 is slidably connected to the inner wall of the cylindrical box body 1. Specifically, an annular guide rail 105 is fixedly connected to the inner wall of the cylindrical box body 1, and a slider 106 that cooperates with the annular guide rail 105 is fixedly connected to the cross bar 302, thereby improving the overall structural strength and rotational stability of the rotating frame 3.

[0050] Moreover, an annular baffle 107 is fixedly connected to the inner wall of the cylindrical box body 1 by welding or screws. The annular baffle 107 is located above the annular guide rail 105 and is inclined downward toward the inside of the cylindrical box body 1. The annular guide rail 105 is shielded by the annular baffle 107. When ore raw materials accumulate on the surface of the annular baffle 107 due to its inclined setting, they will automatically roll down and fall into the outer annular material channel 103 below, thereby achieving collection. Therefore, by providing the annular baffle 107, the situation where dust or ore raw materials accumulate on the annular guide rail 105 can be effectively prevented, thereby improving the overall practicality.

[0051] In the description of this specification, the descriptions referring to terms such as "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 can be combined in a suitable manner in any one or more embodiments or examples.

[0052] 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 to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical fields can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An integrated ore crushing and screening device, characterized in that: It comprises a cylindrical box body (1), the top wall of the cylindrical box body (1) is connected to a feed channel (101), the inner top wall of the cylindrical box body (1) is connected to an annular upper grinding disc (2) arranged concentrically with the feed channel (101), and the lower surface of the upper grinding disc (2) is a conical surface structure; The cylindrical box body (1) is rotatably connected to a rotating frame (3) arranged concentrically with the upper roller disc (2), and is fixedly connected to an inner annular material channel (102) and an outer annular material channel (103), and both the inner annular material channel (102) and the outer annular material channel (103) are connected to a discharge channel (104) extending to the outside of the cylindrical box body (1); The rotating frame (3) is fixedly connected to a lower milling disc (4) and is transmission-connected to a driving device (5) for driving the lower milling disc (4) to rotate. The lower milling disc (4) is concentrically arranged with the upper milling disc (2). The lower milling disc (4) is an overall conical structure, and the distance between the upper surface of the lower milling disc (4) and the lower surface of the upper milling disc (2) gradually decreases from the center to the outside. The lower milling disc (4) comprises a central milling disc (401) and an outer ring milling disc (402) located outside the central milling disc (401), a discharge gap is left between the central milling disc (401) and the outer ring milling disc (402), and an annular sieve plate (403) flush with the upper surface thereof is connected to each other; The inner annular material channel (102) is located directly below the discharge gap and is used to receive the raw materials falling from the discharge gap, and the outer annular material channel (103) is used to receive the raw materials rolling down from the outside of the outer ring rolling disc (402).

2. The integrated ore crushing and screening device according to claim 1, characterized in that: The rotating frame (3) comprises a transmission shaft (301) rotatably connected to the bottom wall of the cylindrical box body (1), and the transmission shaft (301) is fixedly connected to a plurality of cross bars (302) arranged in a circumferential array.

3. The integrated ore crushing and screening device according to claim 1 or 2, characterized in that: The rotating frame (3) is fixedly connected to a scraper plate (303) located in the inner annular channel (102) and the outer annular channel (103). The scraper plate (303) is driven to rotate by the rotating frame (3), and the raw materials in the inner annular channel (102) and the outer annular channel (103) are pushed into the discharge channel (104) by the scraper plate (303).

4. The integrated ore crushing and screening device according to claim 2, characterized in that: The cross bar (302) is slidably connected to the inner wall of the cylindrical box body (1).

5. The integrated ore crushing and screening device according to claim 4, characterized in that: The inner wall of the cylindrical box body (1) is fixedly connected with an annular guide rail (105), and the cross bar (302) is fixedly connected with a sliding block (106) that cooperates with the annular guide rail (105).

6. The integrated ore crushing and screening device according to claim 5, characterized in that: An annular baffle (107) is fixedly connected to the inner wall of the cylindrical box body (1); the annular baffle (107) is located above the annular guide rail (105) and is arranged to be inclined downward toward the inner side of the cylindrical box body (1).

7. The integrated ore crushing and screening device according to claim 1, characterized in that: The upper rolling plate (2) is provided with an annular avoidance groove (201) corresponding to the position of the annular screen plate (403).

8. The integrated ore crushing and screening device according to claim 1 or 7, characterized in that: The lower surface of the upper grinding disc (2) is evenly provided with crushing teeth.

9. The integrated ore crushing and screening device according to claim 1, characterized in that: The upper surface of the lower grinding disc (4) is provided with crushing grooves (404) evenly distributed around the circumference.

10. The integrated ore crushing and screening device according to claim 1, characterized in that: The outer annular material channel (103) comprises an annular folded plate with an L-shaped cross section, and the annular folded plate and the inner wall of the cylindrical box body (1) are enclosed to form the outer annular material channel (103).

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