Gypsum powder modification mill

Abstract

The utility model relates to the technical field of gypsum powder production, and discloses a gypsum powder modification mill which comprises a grinding box, a grinding assembly is arranged in the grinding box, the grinding assembly comprises a main grinding roller rotationally connected to the interior of the grinding box, and the two ends of the main grinding roller extend to the front side and the rear side of the grinding box respectively. And sliding holes are formed in the front side and the rear side of the grinding box, sliding blocks are arranged in the sliding holes in a sliding mode, a driven grinding roller is rotationally connected between the two sliding blocks, a filter screen is arranged in the grinding box and located below the main grinding roller, and a discharging opening is formed in the position, close to the filter screen, of the front side of the grinding box. According to the gypsum powder grinding device, gypsum powder of different sizes is ground by adjusting the distance between the main grinding roller and the auxiliary grinding roller, the grinding speed is high, the discharging speed is high, the ground gypsum powder can be shifted leftwards and rightwards by synchronously rotating the shifting plates in the grinding process, so that the gypsum powder uniformly falls on the filter screen, the accumulation of the gypsum powder is reduced, and the production efficiency is improved. And the discharging speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of gypsum powder production, in particular to a gypsum powder modified mill. Background Art

[0002] Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate. It is widely mined and used as a fertilizer and the main component of various forms of gypsum, blackboard or sidewalk chalk, and drywall. Alabaster is a fine-grained white or light-colored gypsum, but different applications require modified grinding of the gypsum, and different applications require different particle sizes for the gypsum particles.

[0003] An existing gypsum powder modified grinder (Announcement No.: CN220634564U) has the following defects: the above-mentioned device grinds the gypsum powder by using a grinding disc, which results in the ground gypsum powder being slowly squeezed to the edge by the newly added gypsum powder and then falling onto the filter screen, resulting in a too slow discharge speed, and the position of the gypsum powder falling on the filter screen is fixed, causing the gypsum powder to easily accumulate in one place on the filter screen, and the filter screen is fixed and motionless, resulting in a slow filtration speed. For this reason, the present utility model is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art and to propose a gypsum powder modified mill.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A gypsum powder modified mill comprises a grinding box, wherein a grinding assembly is arranged inside the grinding box, the grinding assembly comprises a main grinding roller rotatably connected to the inside of the grinding box, both ends of the main grinding roller extend to the front and rear sides of the grinding box respectively, sliding holes are provided on the front and rear sides of the grinding box, sliding blocks are provided inside the sliding holes for sliding, a slave grinding roller is rotatably connected between the two sliding blocks, a filter screen is provided inside the grinding box and below the main grinding roller, and a discharge port is provided on the front side of the grinding box near the filter screen.

[0007] Preferably, a driving motor is fixed to the rear side of the grinding box, the output shaft of the driving motor is fixed to the rear end of the main grinding roller, a gear is fixed to the front end of the main grinding roller, the front side of the grinding box is rotatably connected to a double-layer gear, the gear of the main grinding roller is meshed with the outer gear of the double-layer gear, a gear is fixed to the front end of the secondary grinding roller, the gear of the secondary grinding roller is meshed with the inner gear of the double-layer gear through a toothed belt, the inside of the sliding hole is rotatably connected to a screw rod, the sliding block is threadedly connected to the outer wall of the screw rod, one end of the screw rod extends to the right side of the grinding box, and baffle plates are fixed on the four inner sides of the grinding box near the top surface.

[0008] Preferably, a tensioning groove is provided on the front side of the grinding box, a tensioning block is slidingly arranged inside the tensioning groove, a limiting rod is fixed to the inner bottom surface of the tensioning groove, the limiting rod is inserted into the bottom surface of the tensioning block, a tension spring is fixed between the tensioning block and the inner bottom surface of the tensioning groove, and a tensioning gear is rotatably connected to one side of the tensioning block, and the tensioning gear is engaged with the toothed belt connected from the grinding roller and the double-layer gear.

[0009] Preferably, the grinding box is rotatably connected to a stripper plate, the front end of the stripper plate extends to the front side of the grinding box, a gear is fixed to the front end of the stripper plate, and the front side of the grinding box is rotatably connected to a linkage gear, the linkage gear is engaged with the gear of the stripper plate, and the linkage gear is also engaged with the outer gear of the double-layer gear.

[0010] Preferably, gears are fixed to the right ends of the two screw rods, and the right side of the grinding box is rotatably connected to an adjusting gear, a nut is fixed to one side of the adjusting gear, and the gears of the two screw rods are engaged with the adjusting gear through a toothed belt for transmission.

[0011] Preferably, several connecting strips are fixed on the left and right sides of the filter screen, several vibration grooves are opened on the left and right sides of the grinding box, the connecting strips and the internal sliding arrangement of the vibration grooves are set, a round rod is fixed on one side of the linkage gear, and a vibration rod is set on the front side of the grinding box. The vibration rod is a U-shaped structure, and a waist hole is opened on one side of the vibration rod. The round rod and the waist hole are inserted into the inside, and several connecting strips are respectively fixed to the inner sides of the vibration rod.

[0012] The beneficial effects of the utility model are:

[0013] By setting a main grinding roller and a slave grinding roller, and using a screw to adjust the position of the sliding block inside the sliding hole, the distance between the main grinding roller and the slave grinding roller can be adjusted according to the size of the gypsum powder to be ground, and the grinding speed is fast and the material discharge is fast. By synchronously rotating the material plate during the grinding process, the ground gypsum powder can be shifted left and right, so that the gypsum powder falls evenly on the filter net, reducing the accumulation of gypsum powder and increasing the discharge speed. By driving the vibration rod and the filter net to shake up and down during the grinding process, the filter net can better filter the gypsum powder, further increasing the filtration speed and the discharge speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the vibration rod proposed in the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the material diverter plate proposed in the utility model;

[0017] Figure 4 for Figure 3 A magnified schematic diagram of the local structure of Figure A.

[0018] In the figure: 1. Grinding box; 2. Main grinding roller; 201. Sliding hole; 202. Sliding block; 203. Slave grinding roller; 204. Screw; 205. Double-layer gear; 206. Filter; 3. Tensioning groove; 301. Tensioning block; 302. Limit rod; 303. Tensioning gear; 4. Material stripping plate; 401. Interlocking gear; 5. Adjusting gear; 6. Connecting strip; 601. Vibration groove; 602. Round rod; 603. Vibration rod. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Please see the attached Figure 1 -Attached Figure 4 A gypsum powder modified mill comprises a grinding box 1, wherein a grinding assembly is provided inside the grinding box 1, and the grinding assembly comprises a main grinding roller 2 rotatably connected to the inside of the grinding box 1, and both ends of the main grinding roller 2 extend to the front and rear sides of the grinding box 1 respectively, and sliding holes 201 are provided on the front and rear sides of the grinding box 1, and a sliding block 202 is slidingly provided inside the sliding hole 201, and a slave grinding roller 203 is rotatably connected between the two sliding blocks 202, and a filter screen 206 is provided inside the grinding box 1 and below the main grinding roller 2, and a discharge port is provided on the front side of the grinding box 1 near the filter screen 206.

[0022] The gear of the main grinding roller 203 is meshed with the outer gear of the double-layer gear 205, and the front end of the slave grinding roller 203 is fixed with a gear. The gear of the slave grinding roller 203 is meshed with the inner gear of the double-layer gear 205 through a toothed belt. The interior of the sliding hole 201 is rotatably connected with a screw rod 204, and the sliding block 202 is threadedly connected to the outer wall of the screw rod 204. One end of the screw rod 204 extends to the right side of the grinding box 1. Baffles are fixed on all four sides of the interior of the grinding box 1 near the top surface. By setting the main grinding roller 2 and the slave grinding roller 203, and using the screw rod 204 to adjust the position of the sliding block 202 inside the sliding hole 201, the distance between the main grinding roller 2 and the slave grinding roller 203 can be adjusted according to the size of the gypsum powder to be ground, and the grinding speed is fast and the feeding is fast.

[0023] In the embodiment, a tensioning groove 3 is opened on the front side of the grinding box 1, and a tensioning block 301 is slidingly set inside the tensioning groove 3, and a limiting rod 302 is fixed to the inner bottom surface of the tensioning groove 3, and the limiting rod 302 is inserted into the bottom surface of the tensioning block 301, and a tension spring is fixed between the tensioning block 301 and the inner bottom surface of the tensioning groove 3. A tensioning gear 303 is rotatably connected to one side of the tensioning block 301, and the tensioning gear 303 is engaged with the toothed belt connecting the slave grinding roller 203 and the double-layer gear 205. Through the setting and use of the tensioning gear 303, when adjusting the distance between the main grinding roller 2 and the slave grinding roller 203, the tensioning gear 303 can ensure that the rack connecting the main grinding roller 2 and the slave grinding roller 203 is always in a tensioned state, thereby ensuring the normal transmission of the main grinding roller 2 and the slave grinding roller 203.

[0024] In the embodiment, the grinding box 1 is internally rotatably connected to a stripping plate 4, the front end of the stripping plate 4 extends to the front side of the grinding box 1, a gear is fixed to the front end of the stripping plate 4, and the front side of the grinding box 1 is rotatably connected to a linkage gear 401, the linkage gear 401 is engaged with the gear of the stripping plate 4, and the linkage gear 401 is also engaged with the outer gear of the double-layer gear 205. By synchronously rotating the stripping plate 4 during the grinding process, the ground gypsum powder can be moved left and right, so that the gypsum powder falls evenly on the filter screen 206, reducing the accumulation of gypsum powder and increasing the discharge speed.

[0025] In the embodiment, gears are fixed to the right ends of the two screw rods 204, and the right side of the grinding box 1 is rotatably connected to the adjusting gear 5, and a nut is fixed to one side of the adjusting gear 5. The gears of the two screw rods 204 are engaged with the adjusting gear 5 through a toothed belt for transmission. The gears of the two screw rods 204 are engaged with the adjusting gear 5 through a toothed belt for transmission, so that when adjusting the distance between the main grinding roller 2 and the slave grinding roller 203, only the nut of the adjusting gear 5 needs to be rotated to rotate the two screw rods 204 at the same time, making it more convenient to adjust the distance between the main grinding roller 2 and the slave grinding roller 203.

[0026] In the embodiment, a plurality of connecting bars 6 are fixed on the left and right sides of the filter screen 206, a plurality of vibration grooves 601 are provided on the left and right sides of the grinding box 1, the connecting bars 6 and the internal sliding arrangement of the vibration grooves 601, a round rod 602 is fixed on one side of the linkage gear 401, a vibration rod 603 is provided on the front side of the grinding box 1, the vibration rod 603 is a U-shaped structure, a waist hole is provided on one side of the vibration rod 603, the round rod 602 is inserted into the waist hole, and a plurality of connecting bars 6 are respectively fixed to the inner sides of the vibration rod 603, by driving the vibration rod 603 and the filter screen 206 to shake up and down during the grinding process, the filter screen 206 can better filter the gypsum powder, further increasing the filtration speed and the discharge speed.

[0027] Working principle: When in use, by rotating the nut of the adjusting gear 5, the adjusting gear 5 is driven to rotate, and the gears of the two screw rods 204 and the adjusting gear 5 are meshed with the toothed belt to make the two screw rods 204 rotate synchronously, and the sliding block 202 is threadedly connected to the outer wall of the screw rod 204, so that the sliding block 202 moves back and forth inside the sliding hole 201. At this time, the toothed belt connected between the gear of the slave grinding roller 203 and the inner gear of the double-layer gear 205 becomes loose or tight, thereby driving the tensioning block 301 to slide inside the tensioning groove 3, causing the tension spring to stretch or rebound, thereby ensuring that the toothed belt connected between the gear of the slave grinding roller 203 and the inner gear of the double-layer gear 205 is always kept in a taut state, so that the distance between the main grinding roller 2 and the slave grinding roller 203 is adjusted, and then the driving motor is started to drive the main grinding roller 2 to rotate, and the gear of the main grinding roller 2 is meshed with the outer gear of the double-layer gear 205 Under the use, the main grinding roller 2 drives the double-layer gear 205 and the slave grinding roller 203 to rotate. At this time, the main grinding roller 2 and the slave grinding roller 203 rotate relative to each other. At this time, since the linkage gear 401 is also meshed with the outer gear of the double-layer gear 205, and the linkage gear 401 is meshed with the gear at one end of the stripping plate 4, the linkage gear 401 and the stripping plate 4 rotate synchronously. Since the round rod 602 is inserted into the interior of the waist hole, the vibration rod 603 and the filter screen 206 are continuously driven downward when the linkage gear 401 rotates. At this time, the staff puts the lime powder inside the grinding box 1. The lime powder is ground by the main grinding roller 2 and the slave grinding roller 203 and falls onto the stripping plate 4. Due to the continuous rotation of the stripping plate 4, the ground dust is evenly moved on the filter screen 206, and then filtered by the filter screen 206 that is tilted and constantly vibrates up and down to complete the grinding and modification of the gypsum powder.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A gypsum powder modified mill, comprising a grinding box (1), characterized in that: The grinding box (1) is provided with a grinding assembly inside, the grinding assembly comprising a main grinding roller (2) rotatably connected to the inside of the grinding box (1), the two ends of the main grinding roller (2) respectively extending to the front and rear sides of the grinding box (1), the front and rear sides of the grinding box (1) are provided with sliding holes (201), the sliding holes (201) are provided with sliding blocks (202) slidingly arranged inside, a secondary grinding roller (203) is rotatably connected between the two sliding blocks (202), a filter screen (206) is provided inside the grinding box (1) and below the main grinding roller (2), a discharge port is provided at the front side of the grinding box (1) near the filter screen (206), a driving motor is fixed to the rear side of the grinding box (1), the output shaft of the driving motor is fixed to the rear end of the main grinding roller (2), a gear is fixed to the front end of the main grinding roller (2), the front side of the grinding box (1) is rotatably connected to a double-layer gear (205), the gear of the main grinding roller (2) The outer gear of the double-layer gear (205) is meshed with a gear fixed from the front end of the grinding roller (203). The gear of the grinding roller (203) is meshed with the inner gear of the double-layer gear (205) through a toothed belt. The interior of the sliding hole (201) is rotatably connected with a screw rod (204). The sliding block (202) is threadedly connected to the outer wall of the screw rod (204). One end of the screw rod (204) extends to the right side of the grinding box (1). Baffle plates are fixed on the four sides of the interior of the grinding box (1) near the top surface. The interior of the grinding box (1) is rotatably connected with a material-diverting plate (4). The front end of the material-diverting plate (4) extends to the front side of the grinding box (1). A gear is fixed to the front end of the material-diverting plate (4). The front side of the grinding box (1) is rotatably connected with a linkage gear (401). The linkage gear (401) is meshed with the gear of the material-diverting plate (4). The linkage gear (401) is also meshed with the outer gear of the double-layer gear (205).

2. A gypsum powder modified mill according to claim 1, characterized in that, The front side of the grinding box (1) is provided with a tensioning groove (3), a tensioning block (301) is slidably provided inside the tensioning groove (3), a limiting rod (302) is fixed to the inner bottom surface of the tensioning groove (3), the limiting rod (302) is inserted into the bottom surface of the tensioning block (301), a tension spring is fixed between the tensioning block (301) and the inner bottom surface of the tensioning groove (3), one side of the tensioning block (301) is rotatably connected to a tensioning gear (303), and the tensioning gear (303) is meshed with a toothed belt connected from the grinding roller (203) and the double-layer gear (205).

3. A gypsum powder modified mill according to claim 2, characterized in that, The right ends of the two screw rods (204) are both fixed with gears, the right side of the grinding box (1) is rotatably connected with an adjusting gear (5), one side of the adjusting gear (5) is fixed with a nut, and the gears of the two screw rods (204) and the adjusting gear (5) are meshed and driven by a toothed belt.

4. A gypsum powder modified mill according to claim 3, characterized in that, A plurality of connecting bars (6) are fixed on both the left and right sides of the filter screen (206); a plurality of vibration grooves (601) are provided on both the left and right sides of the grinding box (1); the connecting bars (6) and the vibration grooves (601) are arranged to slide inside; a round rod (602) is fixed on one side of the linkage gear (401); a vibration rod (603) is provided on the front side of the grinding box (1); the vibration rod (603) is a U-shaped structure; a waist hole is provided on one side of the vibration rod (603); the round rod (602) is inserted into the waist hole; and a plurality of connecting bars (6) are fixed to both sides of the inside of the vibration rod (603).

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