Stone vibrating screen for mine

Abstract

The utility model relates to the technical field of vibrating screens, one embodiment of the utility model provides a mine stone vibrating screen which comprises two scraping plates, a moving assembly, an opening and closing assembly and a closing plate, the two scraping plates are both arranged in a screening box and are arranged above two screening plates correspondingly, and the opening and closing assembly is arranged above the two screening plates; the number of the moving assemblies is two, the two moving assemblies are both arranged on the side face of the screening box, the two scraping plates are arranged on the two moving assemblies correspondingly, the opening and closing assembly is arranged on the bottom plate, and the two closing plates are both arranged on the opening and closing assembly. According to the technical scheme, the technical problem that in the prior art, if small ore particles are located on the upper surfaces of large ore particles on the first-layer sieve plate, the small ore particles easily slide out of the screening box along with the large ore particles, and therefore the screening effect is poor is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of vibrating screen technology, and more specifically, to a vibrating screen for mining stone. Background Technology

[0002] Ore refers to a mineral aggregate from which useful components can be extracted or which has certain usable properties. It can be divided into metallic minerals and non-metallic minerals. After the mining is completed, the volume and mass of the extracted ore vary. Usually, the size of the ore particles is classified by the size of the ore particles through a vibrating screen, so that the ore of different particle sizes can be processed separately to improve the efficiency and quality of ore processing.

[0003] According to the search, for example, the vibrating screen for stone in mining proposed in announcement number CN220479382U, the vibrating screen uses two different screen plates placed at an incline in the box. After the ore is placed into the box, the box and screen plates are vibrated by a vibrating motor to separate the ore. Then, because the screen plates are placed at an incline, the screened ore will slide down the screen plates and flow out from the discharge port on the side of the box.

[0004] However, the discharge port of the device does not have a baffle, and the ore will slide down due to the tilt of the screen plate after contacting it. Therefore, when the ore contacts the first layer of screen plate, if the smaller ore particles remain on the upper surface of the larger ore and do not fully contact the screen plate for screening, they are likely to slide down with the larger ore when falling and flow directly out of the discharge port, resulting in poor screening effect of the ore. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a vibrating screen for mining stone, which solves the technical problem in the prior art that if smaller ore particles are located on the surface of larger ore particles on the first screen plate, they are likely to slide out of the screening box along with the larger ore particles, resulting in poor screening effect.

[0006] According to one aspect, at least one embodiment of this disclosure provides a vibrating screen for mining stone, including a base plate, a screening box, and screen plates. The screening box is disposed on the base plate. Two screen plates are provided, both horizontally placed inside the screening box. Two discharge troughs are opened on the side of the screening box and are placed vertically. The screen also includes scraper plates, moving components, opening and closing components, and closing plates. Two scraper plates are provided, both inside the screening box and respectively above the two screen plates. Two moving components are provided, both on the side of the screening box, and the two scraper plates are respectively disposed on the two moving components for driving the scraper plates to scrape the ore off the screen plates. The opening and closing components are disposed on the base plate. Two closing plates are provided, both disposed on the opening and closing components. The opening and closing components are used to drive the closing plates to block and open / close the discharge troughs of the screening box, and both closing plates are the same size as the two discharge troughs.

[0007] Furthermore, the moving component includes a support cover, a reciprocating screw, a motor, a screw nut, and a sliding component. The support cover is fixedly installed on the side of the screening box. The reciprocating screw is rotatably installed inside the support cover. The motor is installed on the side of the support cover, and the output end of the motor is coaxially connected to the reciprocating screw. The screw nut is installed on the reciprocating screw. The sliding component is disposed on the screening box.

[0008] Furthermore, the sliding assembly includes a second support cover, a sliding rod, a slider, and a connecting rod. The second support cover is fixedly installed on one side of the screening box opposite to the first support cover. The sliding rod is fixedly installed inside the second support cover. The slider is slidably installed on the sliding rod. There are two connecting rods, which are respectively fixedly installed on the top of the slider and the top of the lead screw nut. The screening box has through slots on both sides, and the connecting rods are slidably installed through the through slots.

[0009] Furthermore, the opening and closing assembly includes a mounting bracket, an electric cylinder, a connecting plate, and a lifting bracket. Two mounting brackets are provided, and both mounting brackets are fixedly mounted on the base plate. Two electric cylinders are provided, and the two electric cylinders are respectively mounted on the two mounting brackets. The connecting plate is fixedly mounted on the output end of the two electric cylinders. Two lifting brackets are provided, and the two lifting brackets are respectively fixedly mounted on both ends of the connecting plate. Furthermore, two closing plates are fixedly mounted on the sides of the two lifting brackets.

[0010] Furthermore, it also includes a sealing assembly, the number of which is consistent with the number of through slots on the side of the screening box. The sealing assembly includes a sealing plate and bolts. The sealing plate has a groove and a threaded hole on its side. The screening box has a threaded hole on its side, and the sealing plate is detachably installed on the side of the screening box by bolts.

[0011] Furthermore, the sieve plate consists of a fixed frame and several screening rollers. The fixed frame is fixedly installed inside the screening box, and the several screening rollers are all fixedly installed on the fixed frame, with consistent gaps between the several screening rollers.

[0012] Furthermore, a plurality of scraping cones are fixedly installed at the bottom end of the scraper, and the plurality of scraping cones respectively penetrate into the gaps between the plurality of screening rollers.

[0013] Furthermore, the length of the scraper is consistent with the width of the sieve plate.

[0014] Furthermore, the width of the groove in the sealing plate is consistent with the width of the connecting rod.

[0015] Furthermore, the area of ​​the sealing plate is larger than the area of ​​the through groove on the side of the screening box.

[0016] The beneficial effects of the embodiments disclosed herein are as follows:

[0017] 1. In this disclosure, when ore is placed on the horizontally placed screen plate, the ore can be retained on the screen plate during vibration screening. The ore can be removed from the screening box after it has been completely screened from the screen plate. Compared with the prior art inclined screen plate, the ore will not immediately slip off after contacting the screen plate, and can be collected again after screening.

[0018] 2. In this disclosure, during the screening process, the closing assembly seals the discharge chute with a sealing plate to prevent the ore from flying out of the discharge chute during screening. After screening is completed, the discharge chute is reopened, and the moving assembly drives the scraper plate to scrape the ore on the screen plate out of the discharge chute. During scraping, the scraper cone at the bottom of the scraper plate can push the ore between the screening rollers of the screen plate to ensure complete discharge.

[0019] This device, through the cooperation of scraper, moving component, opening and closing component and closing plate, enables the ore to be screened in the screening box before collection, and the screening effect is more thorough than the existing technology. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the moving component, scraper, and scraper cone of this utility model.

[0023] Figure 3 This is a schematic diagram of the structure of the closed plate and the opening / closing component of this utility model.

[0024] Figure 4 This is a schematic diagram of the structure of the screen plate, scraper plate and scraper cone of this utility model.

[0025] Figure 5 This is a schematic diagram of the structure of the screening box and the sealing component of this utility model.

[0026] Figure 6 This is a schematic diagram of the screening box of this utility model.

[0027] In the diagram: 1. Base plate; 2. Screening box; 3. Screen plate; 4. Scraper plate; 5. Enclosing plate; 6. Support cover one; 7. Reciprocating screw; 8. Motor; 9. Screw nut; 10. Support cover two; 11. Sliding rod; 12. Sliding block; 13. Connecting rod; 14. Mounting frame; 15. Electric cylinder; 16. Connecting plate; 17. Lifting frame; 18. Sealing plate; 19. Bolt; 20. Fixing frame; 21. Screening roller; 22. Scraper cone. Detailed Implementation

[0028] 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.

[0029] 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."

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Example 1, as Figures 1-6 As shown, a vibrating screen for mining stone is illustrated in one embodiment of this disclosure. It includes a base plate 1, a screening box 2, and screen plates 3. The screening box 2 is disposed on the base plate 1. There are two screen plates 3, both of which are placed horizontally inside the screening box 2. Two discharge troughs are opened on the side of the screening box 2 and are placed vertically. The screening box 2 is mounted on the base plate 1 by springs. A vibration motor 8 is installed on the side of the screening box 2. By starting the vibration motor 8, the screening box 2 is driven to vibrate on the base plate 1, thereby screening the ore inside.

[0035] It also includes scraper 4, moving components, opening and closing components, and closing plates 5. There are two scraper 4, both of which are located inside the screening box 2 and are respectively located above the two screen plates 3. There are two moving components, both of which are located on the side of the screening box 2 and are respectively located on the two moving components. They are used to drive the scraper 4 to scrape the ore off the screen plates 3. The opening and closing components are located on the bottom plate 1. There are two closing plates 5, both of which are located on the opening and closing components. The opening and closing components are used to drive the closing plates 5 to block and open / close the discharge chute of the screening box 2, and the two closing plates 5 are the same size as the two discharge chute.

[0036] Specifically, during ore screening, the ore is first poured into the screening box 2, landing on the first-layer screen plate 3. Then, the vibration motor 8 is started to vibrate and screen the ore on the first-layer screen plate 3. The screen plate 3 consists of a fixed frame 20 and several screening rollers 21. The fixed frame 20 is fixedly installed inside the screening box 2, and the screening rollers 21 are all fixedly installed on the fixed frame 20. There are consistent gaps between the screening rollers 21. Smaller ore flows out through the gaps between the screening rollers 21, while larger ore remains on the first-layer screen plate 3. At this point, the discharge chute is sealed by the opening and closing assembly. Figure 3 As shown, the opening and closing assembly includes a mounting frame 14, an electric cylinder 15, a connecting plate 16, and a lifting frame 17. There are two mounting frames 14, both of which are fixedly mounted on the base plate 1. There are two electric cylinders 15, each mounted on one of the two mounting frames 14. The connecting plate 16 is fixedly mounted on the output end of the two electric cylinders 15. There are two lifting frames 17, each fixedly mounted on both ends of the connecting plate 16. Two closing plates 5 are fixedly mounted on the sides of the two lifting frames 17. Specifically, by activating the electric cylinder 15, the output end of the electric cylinder 15 drives the connecting plate 16 to rise. The connecting plate 16 then drives the lifting frame 17 and the two closing plates 5 to rise, thereby closing the discharge chute and preventing some ore from flowing out of the discharge chute during vibration.

[0037] After screening, larger ore pieces remain on the first screen plate 3, smaller pieces flow to the second screen plate 3, and even smaller pieces flow through the second screen plate 3 to the bottom of the screening box 2. After screening, the scraper plate 4, driven by the moving component, scrapes the ore out. Figure 2As shown, the moving assembly includes a support cover 6, a reciprocating screw 7, a motor 8, a screw nut 9, and a sliding assembly. The support cover 6 is fixedly installed on the side of the screening box 2. The reciprocating screw 7 is rotatably installed inside the support cover 6. The motor 8 is installed on the side of the support cover 6, and the output end of the motor 8 is coaxially connected to the reciprocating screw 7. The screw nut 9 is installed on the reciprocating screw 7. The sliding assembly is set on the screening box 2. The sliding assembly includes a support cover 10, a slide rod 11, a slider 12, and a connecting rod 13. The support cover 10 is fixedly installed on one side of the screening box 2 opposite to the support cover 6. The slide rod 11 is fixedly installed inside the support cover 10. The slider 12 is slidably installed on the slide rod 11. There are two connecting rods 13. The two connecting rods 13 are respectively fixedly installed on the top of the slider 12 and the screw nut 9. The screening box 2 has through slots on both sides, and the connecting rods 13 are slidably installed through the through slots.

[0038] Specifically, the motor 8 is started, and the motor 8 drives the reciprocating screw 7 to rotate within the support cover 6. It should be noted that the reciprocating screw 7 and the screw nut 9 are connected by a rolling thread transmission, meaning the screw nut 9 can move on the reciprocating screw 7. The screw nut 9 drives one of the connecting rods 13 to move, the connecting rod 13 drives the scraper plate 4 to move, and the scraper plate 4 drives the connecting rod 13 on the slider 12 to move, thus causing the slider 12 to move on the slide rod 11. Because the length of the scraper plate 4 is consistent with the width of the screen plate 3, several scraping cones 22 are fixedly installed at the bottom end of the scraper plate 4, and these scraping cones 22 respectively penetrate into the gaps between several screening rollers 21. Figure 4 As shown, the scraper plate 4 can completely scrape the ore on the screen plate 3, and the scraper cone 22 penetrates the gap between several screening rollers 21. If there is ore stuck in the gap, it can be pushed. Before that, the sealing plate 5 is opened to collect the ore. And when moving, the connecting rod 13 can move in the through groove of the screening box 2.

[0039] Working principle: When screening ore, the ore is first poured into the screening box 2, and then the vibration motor 8 is started to vibrate. Before vibration, the electric cylinder 15 is started to block the discharge chute with the sealing plate 5. After vibration, the ore of different sizes is located on different screen plates 3. Then the electric cylinder 15 is started again to move the sealing plate 5 down and expose the discharge chute. The motor 8 is started to drive the scraper 4 and scraper cone 22 to move on the screen plate 3, thereby scraping the ore on different screen plates 3 out through the discharge chute for collection. It should be noted that the bottom of the screening box 2 has a discharge port. The ore that leaks out of the second screen plate 3 can be directly discharged through the discharge port at the bottom of the screening box 2. In addition, the number of screening rollers 21 on the two screen plates 3 is different, so the ore particles screened by the two screen plates 3 are of different sizes.

[0040] like Figure 1 and Figure 6 As shown, it should be added that when pushing the material, there is a distance between the two discharge troughs. When discharging the second discharge trough, the upper sealing plate 5 can be moved to the position between the two discharge troughs. At this time, both discharge troughs are in an open state, and the side of the screening box 2 is provided with a sliding groove. The sealing plate 5 is slidably installed in the sliding groove of the screening box 2.

[0041] In Example 2, during screening, to prevent small ore particles from leaking out of the channels in screening box 2, they can be blocked first using sealing components. The number of sealing components matches the number of channels on the side of screening box 2. Figure 5 As shown, the sealing assembly includes a sealing plate 18 and bolts 19. The sealing plate 18 has a groove and a threaded hole on its side. The screening box 2 also has a threaded hole on its side. The sealing plate 18 is detachably mounted on the side of the screening box 2 by means of bolts 19. The width of the groove of the sealing plate 18 is the same as the width of the connecting rod 13. The area of ​​the sealing plate 18 is larger than the area of ​​the through groove on the side of the screening box 2.

[0042] Specifically, during vibration, the sealing plate 18 is installed in the through groove of the screening box 2 by bolts 19 to seal it, and the groove of the sealing plate 18 can be used to insert the connecting rod 13. When scraping is required, the sealing plate 18 is removed to expose the through groove.

[0043] Working principle: When vibrating, the sealing plate 18 is installed in the through slot of the screening box 2 by bolts 19 to seal it. After screening is completed, it is removed.

[0044] 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 or substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A vibrating screen for mining stone, comprising a base plate (1), a screening box (2), and screen plates (3), wherein the screening box (2) is disposed on the base plate (1), and two screen plates (3) are provided, both screen plates (3) being horizontally placed inside the screening box (2), characterized in that, The screening box (2) has two discharge troughs on its side, and the two discharge troughs are placed vertically. It also includes: Two scraper plates (4) are provided, both scraper plates (4) are provided inside the screening box (2), and the two scraper plates (4) are respectively provided above the two screen plates (3); The moving components are provided in two, both of which are located on the side of the screening box (2), and two scraper plates (4) are respectively located on the two moving components, which are used to drive the scraper plates (4) to scrape the ore on the screen plate (3) out. An opening and closing assembly is disposed on the base plate (1); There are two sealing plates (5), both of which are set on the opening and closing assembly. The opening and closing assembly is used to drive the sealing plates (5) to block and open and close the discharge trough of the screening box (2). The two sealing plates (5) are the same size as the two discharge troughs.

2. The vibrating screen for mining stone as described in claim 1, characterized in that, The moving component includes: Support cover one (6), the support cover one (6) is fixedly installed on the side of the screening box (2); A reciprocating lead screw (7) is rotatably mounted inside the support cover (6); The motor (8) is mounted on the side of the support cover (6), and the output end of the motor (8) is coaxially connected to the reciprocating screw (7); A lead screw nut (9) is mounted on the reciprocating lead screw (7); A sliding component is disposed on the filter box (2).

3. A vibrating screen for mining stone as described in claim 2, characterized in that, The sliding component includes: Support cover two (10), which is fixedly installed on one side of the screening box (2) opposite to support cover one (6); A slide rod (11) is fixedly installed inside the second support cover (10); A slider (12) is slidably mounted on the slide rod (11); There are two connecting rods (13). The two connecting rods (13) are fixedly installed on the top of the slider (12) and the lead screw nut (9) respectively. The screening box (2) has through slots on both sides, and the connecting rods (13) are slidably installed in the through slots.

4. A vibrating screen for mining stone as described in claim 3, characterized in that, The opening / closing component includes: Mounting bracket (14), two mounting brackets (14) are provided, and both mounting brackets (14) are fixedly installed on the base plate (1); Two electric cylinders (15) are provided, and the two electric cylinders (15) are respectively mounted on the two mounting brackets (14); A connecting plate (16) is fixedly installed at the output ends of the two electric cylinders (15); There are two lifting frames (17), which are fixedly installed at both ends of the connecting plate (16) and the two closing plates (5) are fixedly installed on the sides of the two lifting frames (17).

5. A vibrating screen for mining stone as described in claim 4, characterized in that, It also includes blocking components, the number of which corresponds to the number of through slots on the side of the screening box (2), and the blocking components include: A sealing plate (18) is provided with a groove, and a threaded hole is provided on the side of the sealing plate (18); Bolt (19), threaded holes are provided on the side of the screening box (2), and the sealing plate (18) is detachably installed on the side of the screening box (2) by bolt (19).

6. A vibrating screen for mining stone as described in claim 5, characterized in that, The sieve plate (3) consists of a fixed frame (20) and a plurality of screening rollers (21). The fixed frame (20) is fixedly installed inside the screening box (2). The plurality of screening rollers (21) are all fixedly installed on the fixed frame (20), and there are consistent gaps between the plurality of screening rollers (21).

7. A vibrating screen for mining stone as described in claim 6, characterized in that, The bottom end of the scraper (4) is fixedly equipped with a plurality of scraper cones (22), and the plurality of scraper cones (22) respectively penetrate into the gap between the plurality of screening rollers (21).

8. A vibrating screen for mining stone as described in claim 7, characterized in that, The length of the scraper (4) is the same as the width of the sieve plate (3).

9. A vibrating screen for mining stone as described in claim 8, characterized in that, The width of the groove of the sealing plate (18) is consistent with the width of the connecting rod (13).

10. A vibrating screen for mining stone as described in claim 9, characterized in that, The area of ​​the sealing plate (18) is larger than the area of ​​the through groove on the side of the screening box (2).

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