Multistage crushing device for bauxite tailing clinker production

Abstract

The disclosure relates to the technical field of crushing devices, and one embodiment of the disclosure provides a multi-stage crushing device for bauxite tailing clinker production, which comprises a shell, a support frame is fixedly connected to the right side of the shell, and an eccentric rod, a hollow rod, an extension rod, a pushing plate and a first inclined plate are arranged in the disclosure. When the first motor starts to operate, the eccentric rod is driven to rotate by the rotating shaft, at this time, the rotation of the eccentric rod extrudes the hollow rod, so that the hollow rod drives the extension rod to move horizontally to the left along the top of the first inclined plate under the limiting action of the shell, and pushes the crushed materials accumulated on the top of the first inclined plate into the left side of the first inclined plate, so that the materials fall into the sieve screen, fundamentally solves the blockage problem of the inclined surface during discharging, ensures continuous and smooth production, and realizes uniform and controllable feeding, and significantly improves the screening efficiency. Through the above technical scheme, the technical problem of easy blockage during discharging in the prior art is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of crushing equipment technology, and more specifically, to a multi-stage crushing equipment for the production of bauxite tailings clinker. Background Technology

[0002] Bauxite, also known as aluminum ore, is a core raw material for refining metallic aluminum and preparing refractory materials, abrasives, and advanced ceramics. Its main component is alumina, with varying amounts of impurities such as silica and iron oxide. This mineral usually exists in grayish-white or brownish-yellow earthy or massive form. Based on its mineral composition, it can be divided into several types, such as gibbsite, boehmite, and diaspore. Its quality is highly dependent on the alumina content and the silica-alumina ratio. Industrially, it is often processed using the Bayer process or sintering method, which is of vital importance to ensuring the stable development of the aluminum and refractory materials industries.

[0003] In the existing technology, operators often use multi-stage crushing devices to crush bauxite tailings clinker during production. However, while these devices have basic crushing functions, the material often forms an arch bridge effect when being fed onto the screening screen, leading to difficulties in feeding and even blockages. This significantly affects the efficiency of screening and subsequent fine crushing. Therefore, improvements are needed. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a multi-stage crushing device for bauxite tailings clinker production, which solves the technical problem of easy clogging during material feeding in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides a multi-stage crushing device for producing bauxite tailings clinker, comprising a shell, a support frame fixedly connected to the right side of the shell, a first motor fixedly connected inside the support frame, a rotating shaft fixedly sleeved at the other end of the output shaft of the first motor, an eccentric rod fixedly sleeved at the other end of the rotating shaft, a hollow rod movably connected to the outer surface of the eccentric rod, a telescopic rod fixedly connected to the left side of the hollow rod, the telescopic rod penetrating the shell and extending into the inner cavity of the shell and fixedly connected to a pusher plate, a first inclined plate fixedly connected to the inner cavity of the shell, the top of the first inclined plate movably connected to the bottom of the pusher plate, and guide plates fixedly connected to both the front and rear sides of the top of the first inclined plate.

[0006] As a preferred technical solution of this disclosure, a second motor is fixedly connected to the front of the housing, and a rotating rod is fixedly sleeved at the other end of the output shaft of the second motor. The other end of the rotating rod passes through the housing and extends to the outside of the housing and is fixedly sleeved with a first gear. A second gear is meshed with the outer surface of the first gear.

[0007] As a preferred technical solution of this disclosure, a rotating rod is fixedly sleeved inside the second gear, and the other end of the rotating rod passes through the housing and extends into the housing. A crushing roller is fixedly sleeved on the outer surface of both the rotating rod and the rotating rod.

[0008] As a preferred technical solution of this disclosure, a protective frame is fixedly connected to the back of the housing, and the protective frame is rectangular in shape.

[0009] As a preferred technical solution of this disclosure, the inner cavity of the shell is fixedly connected to a second inclined plate located below the first inclined plate, and the front of the shell is fixedly connected to an electric push rod. The tail end of the electric push rod passes through the shell and the second inclined plate and extends into the interior of the second inclined plate and is fixedly connected to a sieve. The outer surface of the sieve is movably connected to the inner surface of the second inclined plate.

[0010] As a preferred technical solution of this disclosure, limiting rods are fixedly connected to both the left and right sides of the inner cavity of the second inclined plate, and the outer surface of the limiting rods is movably sleeved with the inner surface of the sieve.

[0011] As a preferred embodiment of this disclosure, the inner cavity of the shell is fixedly connected to a third inclined plate located below the second inclined plate, and a collection box is movably connected to the bottom of the inner cavity of the shell.

[0012] As a preferred technical solution of this disclosure, a suction pipe is fixedly sleeved on the inner surface of the housing, a dust collection box is fixedly connected to the bottom end of the suction pipe, a filter screen is threadedly sleeved on the inner surface of the bottom of the dust collection box, and the outer surface of the dust collection box is movably connected to the inner surface of the housing.

[0013] As a preferred technical solution of this disclosure, a fan is fixedly connected to the left side of the housing, and a connecting pipe and an installation pipe are fixedly connected to the top and bottom of the fan, respectively, with the top of the connecting pipe being movably connected to the bottom of the dust collection box.

[0014] As a preferred technical solution of this disclosure, baffles are fixedly connected to both the front and rear sides of the top of the sieve, and there are two baffles of the same size.

[0015] The beneficial effects of the embodiments disclosed herein are as follows: 1. This disclosure incorporates an eccentric rod, a hollow rod, a telescopic rod, a pusher plate, and a first inclined plate. When the first motor starts running, it drives the rotating shaft to rotate the eccentric rod. The rotation of the eccentric rod compresses the hollow rod, causing the hollow rod to drive the telescopic rod to move horizontally to the left along the top of the first inclined plate under the limiting action of the shell. This pushes the crushed material accumulated on the top of the first inclined plate into the left side of the first inclined plate, causing it to fall onto the screening screen. This fundamentally solves the problem of clogging when feeding material onto the inclined surface, ensuring continuous and smooth production. At the same time, it achieves uniform and controllable feeding, significantly improving screening efficiency.

[0016] 2. This invention incorporates a dust collection box, a fan, a connecting pipe, an installation pipe, and a filter. When the fan is activated, dust stirred up during crushing and screening is drawn into the dust collection box through the suction pipe. The dust is then retained in the dust collection box by the filter. The filtered air is then discharged from the device through the connecting pipe and the installation pipe, effectively reducing the harm caused by large amounts of dust to equipment, the production environment, and operators during multi-stage crushing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure; Figure 2 for Figure 1 A cross-sectional view of the housing in the embodiment; Figure 3 for Figure 2 A cross-sectional view of the pusher plate in the embodiment; Figure 4 for Figure 1 A cross-sectional view of the rotating rod in the embodiment; Figure 5 for Figure 2 The cross-sectional view of the sieve structure in the embodiment is shown in the figure.

[0019] In the diagram: 1. Shell; 2. Support frame; 3. First motor; 4. Rotating shaft; 5. Eccentric rod; 6. Hollow rod; 7. Telescopic rod; 8. Push plate; 9. First inclined plate; 10. Guide plate; 11. Second motor; 12. Rotating rod; 13. First gear; 14. Second gear; 15. Rotating rod; 16. Crushing roller; 17. Protective frame; 18. Second inclined plate; 19. Electric push rod; 20. Screen; 21. Limiting rod; 22. Third inclined plate; 23. Collection box; 24. Dust suction pipe; 25. Dust collection box; 26. Fan; 27. Connecting pipe; 28. Mounting pipe; 29. ​​Filter screen; 30. Baffle. Detailed Implementation The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0020] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0022] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0024] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] like Figures 1-5 As shown, a multi-stage crushing device for bauxite tailings clinker production according to an embodiment of the present disclosure is illustrated. The device includes a housing 1, a support frame 2 fixedly connected to the right side of the housing 1, a first motor 3 fixedly connected inside the support frame 2, a rotating shaft 4 fixedly sleeved at the other end of the output shaft of the first motor 3, an eccentric rod 5 fixedly sleeved at the other end of the rotating shaft 4, a hollow rod 6 movably connected to the outer surface of the eccentric rod 5, a telescopic rod 7 fixedly connected to the left side of the hollow rod 6, the telescopic rod 7 penetrating the housing 1 and extending into the inner cavity of the housing 1 and fixedly connected to a pusher plate 8, a first inclined plate 9 fixedly connected to the inner cavity of the housing 1, the top of the first inclined plate 9 movably connected to the bottom of the pusher plate 8, and guide plates 10 fixedly connected to both the front and rear sides of the top of the first inclined plate 9.

[0026] The outer surface of the telescopic rod 7 is smooth. This design greatly reduces the friction between the telescopic rod 7 and the housing 1, making the sliding of the telescopic rod 7 on the inner surface of the housing 1 smoother and improving the service life of the telescopic rod 7 and the housing 1. Furthermore, under the limiting action of the telescopic rod 7, the pusher plate 8 can only move horizontally.

[0027] In some examples, a second motor 11 is fixedly connected to the front of the housing 1, and a rotating rod 12 is fixedly sleeved at the other end of the output shaft of the second motor 11. The other end of the rotating rod 12 passes through the housing 1 and extends to the outside of the housing 1 and is fixedly sleeved with a first gear 13. A second gear 14 is meshed with the outer surface of the first gear 13.

[0028] When the second motor 11 starts running, it drives the rotating rod 12 to drive the first gear 13 to rotate synchronously, and makes the second gear 14 rotate in the opposite direction to the first gear 13.

[0029] In some examples, a rotating rod 15 is fixedly sleeved inside the second gear 14, and the other end of the rotating rod 15 passes through the housing 1 and extends into the interior of the housing 1. A crushing roller 16 is fixedly sleeved on the outer surface of both the rotating rod 12 and the rotating rod 15.

[0030] The reverse rotation of gear 13 and gear 14 will drive crushing roller 16 to rotate in the opposite direction, thereby achieving the crushing effect on bauxite clinker.

[0031] In some examples, a protective frame 17 is fixedly connected to the back of the housing 1, and the protective frame 17 is rectangular in shape.

[0032] Due to the sealing effect of the protective frame 17, external dust and moisture are prevented from corroding gear 13 and gear 14, thus affecting their meshing and transmission.

[0033] In some examples, the inner cavity of the housing 1 is fixedly connected to a second inclined plate 18 located below the first inclined plate 9, and the front of the housing 1 is fixedly connected to an electric push rod 19. The tail end of the electric push rod 19 passes through the housing 1 and the second inclined plate 18 and extends into the interior of the second inclined plate 18 and is fixedly connected to a sieve 20. The outer surface of the sieve 20 is movably connected to the inner surface of the second inclined plate 18.

[0034] When the electric push rod 19 starts running, it will drive the screening screen 20 to reciprocate back and forth along the inner surface of the second inclined plate 18.

[0035] In some examples, limit rods 21 are fixedly connected to both sides of the inner cavity of the second inclined plate 18, and the outer surface of the limit rods 21 is movably sleeved with the inner surface of the sieve screen 20.

[0036] The outer surface of the limiting rod 21 is smooth, which makes the sliding of the screen 20 on the outer surface of the limiting rod 21 smoother.

[0037] In some examples, the inner cavity of the housing 1 is fixedly connected to the third inclined plate 22 located below the second inclined plate 18, and the bottom of the inner cavity of the housing 1 is movably connected to the collection box 23.

[0038] After being finely crushed, the raw materials will slide into the collection box 23 under the guidance of the No. 3 inclined plate 22.

[0039] In some examples, a suction pipe 24 is fixedly sleeved on the inner surface of the housing 1, a dust collection box 25 is fixedly connected to the bottom end of the suction pipe 24, a filter screen 29 is threadedly sleeved on the inner surface of the bottom of the dust collection box 25, and the outer surface of the dust collection box 25 is movably connected to the inner surface of the housing 1.

[0040] This design allows operators to easily replace the filter 29 and quickly remove it to clean the inner surface of the dust collection box 25.

[0041] In some examples, a fan 26 is fixedly connected to the left side of the housing 1, and a connecting pipe 27 and an installation pipe 28 are fixedly connected to the top and bottom of the fan 26, respectively. The top of the connecting pipe 27 is movably connected to the bottom of the dust collection box 25.

[0042] After the fan 26 is started, it will draw out the dust raised by the crushing and screening in the inner cavity of the housing 1 through the dust suction pipe 24 and draw it into the dust collection box 25.

[0043] In some examples, baffles 30 are fixedly connected to both the front and rear sides of the top of the sieve 20. There are two baffles 30, and the two baffles 30 are the same size.

[0044] The baffle 30 prevents the raw material at the top of the screen 20 from falling into the collection box 23 through the gap between the screen 20 and the second inclined plate 18 as the screen 20 moves back and forth.

[0045] The working principle and usage process of this disclosure are as follows: First, the second motor 11 is started, causing the rotating rod 12 to drive the first gear 13 and the second gear 14 to rotate synchronously. Then, the rotating rod 15 drives the crushing roller 16 to rotate in the opposite direction. After that, bauxite clinker is added. At this time, the raw material will undergo the first crushing, i.e., coarse crushing. The coarsely crushed raw material will fall onto the top of the first inclined plate 9 and slide downward under the action of the inclined surface of the first inclined plate 9. Then, the first motor 3 is started, driving the rotating shaft 4 to drive the eccentric rod 5 to rotate. At this time, the rotation of the eccentric rod 5 will squeeze the hollow rod 6, causing the hollow rod 6 to drive the telescopic rod 7 to move horizontally to the left along the top of the first inclined plate 9 under the limiting action of the shell 1. The crushed material accumulated on the top of the first inclined plate 9 is pushed into the left side of the first inclined plate 9 and falls onto the screening screen 20. This fundamentally solves the problem of clogging of the inclined surface, ensuring continuous and smooth production. At the same time, it achieves uniform and controllable feeding, significantly improving screening efficiency.

[0046] When the raw material is vibrating and screened on the screen 20, the fine material that meets the particle size standard will fall directly into the collection box 23 through the mesh of the screen 20 and be collected as finished product; while the large material that does not meet the standard will remain on the screen 20 and be conveyed to the fine crushing section for secondary crushing. After crushing, it will slide down into the collection box 23 through the No. 3 inclined plate 22. This avoids the over-crushing of qualified materials, reduces the load on the fine crushing equipment, and improves the overall crushing efficiency.

[0047] When the shell 1 begins to break, the blower 26 needs to be started to extract the dust raised by the breaking and screening in the inner cavity of the shell 1 through the dust suction pipe 24 and draw it into the dust collection box 25. At this time, under the filtering action of the filter screen 29, the dust will remain in the dust collection box 25, and the filtered air will be discharged from the device through the connecting pipe 27 and the installation pipe 28 in sequence, effectively reducing the harm of a large amount of dust to the equipment, production environment and operators during the multi-stage crushing process.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A multi-stage crushing device for bauxite tailings clinker production, comprising a shell (1), characterized in that: A support frame (2) is fixedly connected to the right side of the housing (1). A first motor (3) is fixedly connected inside the support frame (2). A rotating shaft (4) is fixedly sleeved at the other end of the output shaft of the first motor (3). An eccentric rod (5) is fixedly sleeved at the other end of the rotating shaft (4). A hollow rod (6) is movably connected to the outer surface of the eccentric rod (5). A telescopic rod (7) is fixedly connected to the left side of the hollow rod (6). The telescopic rod (7) passes through the housing (1) and extends to the inner cavity of the housing (1) and is fixedly connected to a pusher plate (8). A first inclined plate (9) is fixedly connected to the inner cavity of the housing (1). The top of the first inclined plate (9) is movably connected to the bottom of the pusher plate (8). Guide plates (10) are fixedly connected to the front and rear sides of the top of the first inclined plate (9).

2. The multi-stage crushing device for bauxite tailings clinker production according to claim 1, characterized in that: The front of the housing (1) is fixedly connected to a second motor (11), and the other end of the output shaft of the second motor (11) is fixedly sleeved with a rotating rod (12). The other end of the rotating rod (12) passes through the housing (1) and extends to the outside of the housing (1) and is fixedly sleeved with a first gear (13). The outer surface of the first gear (13) is meshed with a second gear (14).

3. The multi-stage crushing device for bauxite tailings clinker production according to claim 2, characterized in that: The second gear (14) is fixedly fitted with a rotating rod (15), the other end of which passes through the housing (1) and extends into the interior of the housing (1). The outer surfaces of the rotating rod (12) and the rotating rod (15) are both fixedly fitted with crushing rollers (16).

4. The multi-stage crushing device for bauxite tailings clinker production according to claim 1, characterized in that: A protective frame (17) is fixedly connected to the back of the housing (1), and the protective frame (17) is rectangular in shape.

5. A multi-stage crushing device for bauxite tailings clinker production according to claim 1, characterized in that: The inner cavity of the housing (1) is fixedly connected to a second inclined plate (18) located below the first inclined plate (9). The front of the housing (1) is fixedly connected to an electric push rod (19). The tail end of the electric push rod (19) passes through the housing (1) and the second inclined plate (18) and extends into the interior of the second inclined plate (18) and is fixedly connected to a sieve (20). The outer surface of the sieve (20) is movably connected to the inner surface of the second inclined plate (18).

6. A multi-stage crushing device for bauxite tailings clinker production according to claim 5, characterized in that: Limiting rods (21) are fixedly connected to both sides of the inner cavity of the second inclined plate (18), and the outer surface of the limiting rods (21) is movably sleeved with the inner surface of the sieve (20).

7. The multi-stage crushing device for bauxite tailings clinker production according to claim 1, characterized in that: The inner cavity of the housing (1) is fixedly connected to the third inclined plate (22) located below the second inclined plate (18), and the bottom of the inner cavity of the housing (1) is movably connected to the collection box (23).

8. A multi-stage crushing device for bauxite tailings clinker production according to claim 1, characterized in that: A suction pipe (24) is fixedly sleeved on the inner surface of the housing (1), and a dust collection box (25) is fixedly connected to the bottom end of the suction pipe (24). A filter screen (29) is threadedly sleeved on the inner surface of the bottom of the dust collection box (25), and the outer surface of the dust collection box (25) is movably connected to the inner surface of the housing (1).

9. A multi-stage crushing device for bauxite tailings clinker production according to claim 1, characterized in that: A fan (26) is fixedly connected to the left side of the housing (1). A connecting pipe (27) and an installation pipe (28) are fixedly connected to the top and bottom of the fan (26), respectively. The top of the connecting pipe (27) is movably connected to the bottom of the dust collection box (25).

10. A multi-stage crushing device for bauxite tailings clinker production according to claim 5, characterized in that: The front and rear sides of the top of the sieve (20) are fixedly connected with baffles (30), and there are two baffles (30), and the two baffles (30) are the same size.

Images