A gypsum grinding device and method

Abstract

The present invention belongs to the technical field of grinding equipment, in particular to a gypsum grinding device and method. The present invention includes a box body, a crushing mechanism disposed inside the box body, a grinding mechanism disposed below the crushing mechanism, and a driving mechanism for driving the crushing mechanism and the grinding mechanism to rotate simultaneously. The crushing mechanism includes: a crushing seat rotatably connected inside the box body, an annular tooth seat fixedly connected inside the box body and cooperating with the crushing seat, and the annular tooth seat is disposed outside the crushing seat. The grinding mechanism includes a grinding seat and a grinding disc. The grinding seat is fixedly connected to the inner wall of the box body, and the grinding disc rotates coaxially with the crushing seat, and the gypsum is ground between the grinding seat and the grinding disc. By providing a crushing mechanism and a grinding mechanism in the box body from top to bottom respectively, the crushing mechanism first crushes the massive gypsum, the crushed gypsum enters the grinding mechanism, and then the grinding mechanism grinds the gypsum, achieving the integration of crushing and grinding of gypsum and improving the grinding efficiency of gypsum.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding equipment, and in particular to a gypsum grinding device and method. Background Art

[0002] In industrial production applications, gypsum is the main raw material for the production of gypsum cementitious materials and gypsum building products. It is also a retarder for silicate cement. When obtaining anhydrite binder with good thermal insulation, the gypsum needs to be calcined at 600-800℃ and then ground with a small amount of catalysts such as lime. When obtaining high-temperature calcined gypsum with good wear resistance and water resistance, the gypsum needs to be calcined at 900-1000℃ and ground. Products made with anhydrite binder and high-temperature calcined gypsum have higher strength than building gypsum products.

[0003] Before grinding, the gypsum needs to be crushed using a crusher and then placed in a grinding machine. That is, the crushing and grinding processes require the cooperation of two machines. After the gypsum is crushed, it needs to be transferred. The transfer process is more troublesome and increases the workload, and the working efficiency of the device is low. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a gypsum grinding device and method, which integrates the crushing and grinding of gypsum, overcomes the shortcomings of the existing technology that gypsum crushing and grinding need to be handled separately, and aims to solve the problems in the background technology.

[0005] In order to achieve the above technical objectives, the specific technical solutions of the present invention are as follows: a gypsum grinding device proposed in the present invention includes a box body, the upper and lower ends of the box body are both set as open structures; a crushing mechanism is arranged inside the box body; a grinding mechanism is arranged below the crushing mechanism, and the gypsum falls into the grinding mechanism after being crushed by the crushing mechanism; a driving mechanism is used to drive the crushing mechanism and the grinding mechanism to rotate simultaneously; the crushing mechanism includes: a crushing seat, which is rotatably connected to the box body, and an annular tooth seat that cooperates with the crushing seat is fixedly connected to the box body, and the annular tooth seat is arranged on the periphery of the crushing seat; the grinding mechanism includes a grinding seat and a grinding disc, and the grinding seat is fixedly connected to the inner wall of the box body, the grinding disc rotates coaxially with the crushing seat, and the grinding disc can move up and down, and the gypsum is ground between the grinding seat and the grinding disc.

[0006] As a preferred technical solution of the present invention, a plurality of retractable pressure seats are connected to the peripheral side of the crushing seat for crushing the gypsum; the crushing seat is provided with a channel for cooperating with the movement of the pressure seat, and a through hole is provided at the center of the crushing seat which passes through the upper and lower parts, and a support rod is fixedly connected to the pressure seat, and one end of the support rod extends into the through hole.

[0007] As an optimal technical solution of the present invention, a crushing ring is fixedly connected to the peripheral side of the crushing seat, the crushing ring is arranged below the pressure seat, and a plurality of tooth blocks are arranged on the crushing ring along its radial direction; a tooth ring is fixedly connected to the upper surface of the crushing seat.

[0008] As a preferred technical solution of the present invention, the driving mechanism includes: a driving motor, which is fixedly connected to the box through a mounting bracket, and the driving motor is respectively connected to a first gear and a second gear, and the second gear is engaged with a gear ring; a rotating shaft is rotatably connected to the mounting bracket, and a rotating disk is fixedly connected to the rotating shaft, which is used to drive the pressure seat to reciprocate and extend, and the rotating shaft is connected to a third gear that is engaged with the first gear.

[0009] As a preferred technical solution of the present invention, an elliptical groove is provided on the surface of the rotating disk, and a sliding shaft is fixedly connected to the support rod and is slidably connected to the groove. When the sliding shaft slides circumferentially in the groove, it drives the pressure seat to move back and forth in the channel.

[0010] As a preferred technical solution of the present invention, the grinding disc is fixedly connected to an outer tube body, the lower surface of the crushing seat is fixedly connected to an inner tube body, the inner tube body is movably connected to the outer tube body, and an elastic component is connected between the inner tube body and the outer tube body.

[0011] As a preferred technical solution of the present invention, the inner wall of the grinding seat and the outer wall of the grinding disk are both configured as mutually matching conical surface structures, and a grinding gap is provided between the inner wall of the grinding seat and the outer wall of the grinding disk, and a feed port with a "V"-shaped cross-section is provided at the upper end of the grinding gap, and gypsum enters the grinding gap through the feed port.

[0012] As a preferred technical solution of the present invention, a pair of support rods are fixedly connected to the lower surface of the grinding disc, a roller is fixedly connected to the lower end of the support rod, and a ring-shaped track is provided under the grinding disc to cooperate with the roller in rolling. The track is fixedly connected to the inner wall of the box through a connecting plate, and a raised portion is provided on the surface of the track.

[0013] As a preferred technical solution of the present invention, a material trough is fixedly connected to the lower end of the box body for receiving the ground gypsum.

[0014] A gypsum grinding method comprises the following steps:

[0015] Step 1: After the gypsum is fed from the upper end of the box, the driving mechanism drives the crushing seat to rotate, and at the same time drives the rotating disk to rotate. When the rotating disk rotates, the pressure seat is driven to reciprocate and extend. The large pieces of gypsum are crushed by the pressure seat and then further crushed by the crushing ring and the annular gear seat;

[0016] Step 2: The crushed gypsum falls onto the grinding mechanism and enters the grinding gap through the feed inlet. When the grinding disc rotates, it grinds the gypsum in the grinding gap.

[0017] Step 3: When the grinding disc rotates, it drives the roller to roll on the track. When the roller rolls to the convex part, it drives the grinding disc to rise, making the grinding gap larger, so that the gypsum is intermittently fed into the grinding gap, and the ground gypsum is collected in the trough.

[0018] The beneficial effects of the present invention are as follows: In the present invention, a crushing mechanism and a grinding mechanism are respectively provided from top to bottom in the box body. The crushing mechanism first crushes the massive gypsum, and the crushed gypsum enters the grinding mechanism, and then the grinding mechanism grinds the gypsum, achieving the integration of crushing and grinding of gypsum and improving the grinding efficiency of gypsum. Brief Description of the Drawings

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a gypsum grinding device proposed by the present invention.

[0020] Figure 2 It is an internal structural schematic diagram of a gypsum grinding device proposed by the present invention.

[0021] Figure 3 It is Figure 1 a partial structural schematic diagram of

[0022] Figure 4 It is a structural schematic diagram of the driving mechanism proposed by the present invention.

[0023] Figure 5 It is a structural schematic diagram of the crushing mechanism and the grinding mechanism proposed by the present invention.

[0024] Figure 6 It is Figure 5 a front view schematic diagram of

[0025] Figure 7 It is a sectional view schematic diagram of the crushing mechanism proposed by the present invention.

[0026] Figure 8 It is a sectional view schematic diagram of the grinding mechanism proposed by the present invention.

[0027] Figure 9 It is a structural schematic diagram of the track proposed by the present invention.

[0028] In the figure: 1. Box body; 2. Feeding trough; 3. Driving mechanism; 31. Driving motor; 32. First gear; 33. Second gear; 34. Third gear; 35. Rotating disc; 36. Channel; 37. Rotating shaft; 4. Crushing mechanism; 41. Crushing seat; 42. Pressing seat; 43. Crushing ring; 44. Tooth block; 45. Support rod; 46. Sliding shaft; 47. Channel; 48. Tooth ring; 49. Inner tube body; 410. Through hole; 5. Grinding mechanism; 51. Grinding seat; 52. Grinding disc; 53. Feeding port; 54. Grinding seam; 55. Support rod; 56. Roller; 57. Outer tube body; 58. Elastic component; 6. Track; 61. Protrusion; 62. Connecting plate; 7. Mounting bracket; 8. Annular tooth seat. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0030] Embodiment

[0031] This embodiment discloses a gypsum grinding device, as Figures 1-9 shown, including: a box body 1, both the upper and lower ends of the box body 1 are provided with open structures; a crushing mechanism 4, arranged inside the box body 1; a grinding mechanism 5, arranged below the crushing mechanism 4, and the gypsum is broken by the crushing mechanism 4 and then falls into the grinding mechanism 5; a driving mechanism 3, used to drive the crushing mechanism 4 and the grinding mechanism 5 to rotate simultaneously; a feeding trough 2 is fixedly connected to the lower end of the box body 1 for receiving the ground gypsum.

[0032] As Figure 4 shown, the driving mechanism 3 includes: a driving motor 31, the driving motor 31 is fixedly connected to the box body 1 through a mounting bracket 7, the mounting bracket 7 is in an inverted U-shaped structure, and a first gear 32 and a second gear 33 are respectively connected to the driving motor 31; a rotating shaft 37 is rotatably connected to the mounting bracket 7, a rotating disc 35 is fixedly connected to the rotating shaft 37 for driving the pressing seat 42 to reciprocate telescopically, and a third gear 34 meshing with the first gear 32 is connected to the rotating shaft 37; an elliptical channel 36 is arranged on the surface of the rotating disc 35.

[0033] As Figures 5-7As shown in the figure, the crushing mechanism 4 includes: a crushing base 41, which is rotatably connected inside the box body 1. An annular tooth seat 8 that cooperates with the crushing base 41 is fixedly connected inside the box body 1, and the annular tooth seat 8 is arranged outside the crushing base 41; a plurality of telescopic pressing seats 42 are connected to the circumferential side of the crushing base 41 for crushing the gypsum. An inclined surface is provided on the upper surface of the pressing seat 42 to facilitate the gypsum to slide between the pressing seat 42 and the annular tooth seat 8; a channel 47 that movably cooperates with the pressing seat 42 is provided on the crushing base 41. A through hole 410 that penetrates up and down is provided at the center of the crushing base 41. A support rod 45 is fixedly connected to the pressing seat 42, and one end of the support rod 45 extends into the through hole 410; a sliding shaft 46 that is slidably connected to the channel 36 is fixedly connected to the support rod 45. When the sliding shaft 46 slides circumferentially in the channel 36, it drives the pressing seat 42 to reciprocate in the channel 47; a crushing ring 43 is fixedly connected to the circumferential side of the crushing base 41. The crushing ring 43 is arranged below the pressing seat 42. A plurality of tooth blocks 44 are arranged along the radial direction of the crushing ring 43. The crushing base 41 drives the crushing ring 43 to rotate to crush the massive gypsum located between the crushing ring 43 and the annular tooth seat 8; a tooth ring 48 is fixedly connected to the upper surface of the crushing base 41, and the second gear 33 meshes with the tooth ring 48; specifically in implementation, the driving motor 31 drives the first gear 32, the second gear 33, and the third gear 34 to rotate. The second gear 33 drives the crushing base 41 to rotate. When the crushing base 41 rotates, it drives the crushing ring 43 to rotate to crush the gypsum between the crushing ring 43 and the annular tooth seat 8. When the rotating disk 35 rotates, the rotation speeds of the rotating disk 35 and the crushing base 41 are different, so that the sliding shaft 46 slides circumferentially in the channel 36, driving each pressing seat 42 to reciprocate telescopically. When the pressing seat 42 contracts inward, the large block of gypsum slides between the pressing seat 42 and the annular tooth seat 8; when the pressing seat 42 extends outward, it squeezes and crushes the large block of gypsum in the middle, achieving the purpose of crushing the large block of gypsum.

[0034] As Figure 8 shown in the figure, the grinding mechanism 5 includes a grinding base 51 and a grinding disk 52. The grinding base 51 is fixedly connected to the inner wall of the box body 1. The grinding disk 52 rotates coaxially with the crushing base 41 and can move up and down. The gypsum is ground between the grinding base 51 and the grinding disk 52; the inner wall of the grinding base 51 and the outer wall of the grinding disk 52 are both set as a tapered surface structure that cooperates with each other, and a grinding gap 54 is provided between the inner wall of the grinding base 51 and the outer wall of the grinding disk 52. The grinding gap 54 is set in a tapered shape, and a feeding port 53 with a cross-section in a "V" shape is provided at the upper end of the grinding gap 54. The crushed gypsum just falls at the feeding port 53. The gypsum enters the grinding gap 54 through the feeding port 53. When the grinding disk 52 rotates, it grinds the gypsum in the grinding gap 54, and the ground gypsum powder falls into the material trough 2.

[0035] Preferably, an outer tube body 57 is fixedly connected to the grinding disc 52, and an inner tube body 49 is fixedly connected to the lower surface of the crushing seat 41. The inner tube body 49 is movably connected inside the outer tube body 57, so that the grinding disc 52 can move up and down, and the grinding disc 52 rotates together with the crushing seat 41. An elastic component 58 is connected between the inner tube body 49 and the outer tube body 57. The elastic component 58 includes a slide rod and a spring. The spring is sleeved on the slide rod. One end of the slide rod is fixed to the outer tube body 57, and the other end is movably connected to the inner tube body 49. When the grinding disc 52 moves upward, the spring is compressed by force.

[0036] Preferably, as Figures 8-9 shown, a pair of support rods 55 are fixedly connected to the lower surface of the grinding disc 52. The lower ends of the support rods 55 are fixedly connected with rollers 56. And a ring-shaped track 6 which is in rolling cooperation with the rollers 56 is arranged below the grinding disc 52. The track 6 is fixedly connected to the inner wall of the box body 1 through a connecting plate 62. And a convex portion 61 is arranged on the surface of the track 6. There are a pair of convex portions 61 and they are symmetrically arranged with respect to the track 6. During specific implementation, when the grinding disc 52 rotates, it drives the rollers 56 to move in a circular motion on the track 6. When the rollers 56 roll to the position of the convex portion 61, it drives the grinding disc 52 to move upward. After the grinding disc 52 moves upward, the elastic component 58 is compressed by force, and the grinding gap 54 becomes larger, so that the gypsum in the feed port 53 enters the grinding gap 54, achieving the purpose of intermittent feeding, avoiding the problems that the feed port 53 is blocked and the gypsum cannot enter the grinding gap 54. When the rollers 56 are separated from the convex portion 61, the grinding disc 52 descends to its original position, the grinding gap 54 becomes smaller, and the grinding disc 52 continues to grind the gypsum.

[0037] A gypsum grinding method includes the following steps:

[0038] Step 1: After the gypsum is fed from the upper end of the box body 1, the driving mechanism 3 drives the crushing seat 41 to rotate, and at the same time drives the rotating disc 35 to rotate. When the rotating disc 35 rotates, it drives the pressing seat 42 to reciprocate and stretch. The large pieces of gypsum are crushed by the pressing seat 42, and then further crushed by the crushing ring 43 and the annular tooth seat 8.

[0039] Step 2: The crushed gypsum falls on the grinding mechanism 5 and enters the grinding gap 54 through the feed port 53. When the grinding disc 52 rotates, it grinds the gypsum in the grinding gap 54.

[0040] Step 3: When the grinding disc 52 rotates, it drives the rollers 56 to roll on the track 6. When the rollers 56 roll to the convex portion 61, it drives the grinding disc 52 to rise, so that the grinding gap 54 becomes larger, enabling the gypsum to be fed into the grinding gap 54 intermittently. The ground gypsum is collected in the trough 2.

[0041] Finally, it should be noted that: in the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0042] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gypsum grinding device, characterized in that, including a box body (1) with both upper and lower ends being open structures; a crushing mechanism (4) disposed inside the box body (1); a grinding mechanism (5) disposed below the crushing mechanism (4), and after the gypsum is crushed by the crushing mechanism (4), it falls inside the grinding mechanism (5); a driving mechanism (3) for driving the crushing mechanism (4) and the grinding mechanism (5) to rotate simultaneously; The crushing mechanism (4) includes: a crushing seat (41) rotatably connected inside the box body (1), and an annular tooth seat (8) cooperated with the crushing seat (41) is fixedly connected inside the box body (1), and the annular tooth seat (8) is disposed outside the crushing seat (41); The grinding mechanism (5) includes a grinding seat (51) and a grinding disc (52), the grinding seat (51) is fixedly connected to the inner wall of the box body (1), the grinding disc (52) rotates coaxially with the crushing seat (41), and the grinding disc (52) can move up and down, and the gypsum is ground between the grinding seat (51) and the grinding disc (52); A plurality of telescopic pressing seats (42) are connected to the periphery of the crushing seat (41) for crushing the gypsum; a channel (47) for the movement of the pressing seat (42) is provided on the crushing seat (41), a through hole (410) penetrating up and down is provided at the center of the crushing seat (41), a support rod (45) is fixedly connected to the pressing seat (42), and one end of the support rod (45) extends into the through hole (410); A crushing ring (43) is fixedly connected to the periphery of the crushing seat (41), the crushing ring (43) is disposed below the pressing seat (42), and a plurality of tooth blocks (44) are provided along the radial direction of the crushing ring (43); a tooth ring (48) is fixedly connected to the upper surface of the crushing seat (41); The driving mechanism (3) includes: a driving motor (31), the driving motor (31) is fixedly connected to the box body (1) through a mounting frame (7), a first gear (32) and a second gear (33) are respectively connected to the driving motor (31), and the second gear (33) meshes with the tooth ring (48); a rotating shaft (37) is rotatably connected to the mounting frame (7), a rotating disc (35) is fixedly connected to the rotating shaft (37) for driving the pressing seat (42) to reciprocate telescopically, and a third gear (34) meshing with the first gear (32) is connected to the rotating shaft (37); An elliptical channel (36) is provided on the surface of the rotating disc (35), a sliding shaft (46) slidably connected to the channel (36) is fixedly connected to the support rod (45), and when the sliding shaft (46) slides circumferentially in the channel (36), it drives the pressing seat (42) to reciprocate in the channel (47).

2. The gypsum grinding device according to claim 1, characterized in that, An outer tube body (57) is fixedly connected to the grinding disc (52), an inner tube body (49) is fixedly connected to the lower surface of the crushing seat (41), the inner tube body (49) is movably connected inside the outer tube body (57), and an elastic component (58) is connected between the inner tube body (49) and the outer tube body (57).

3. A gypsum grinding device according to claim 2, characterized in that, The inner wall of the grinding seat (51) and the outer wall of the grinding disc (52) are both provided with tapered surface structures that cooperate with each other, and a grinding gap (54) is provided between the inner wall of the grinding seat (51) and the outer wall of the grinding disc (52). The upper end of the grinding gap (54) is provided with a feed port (53) having a "V"-shaped cross section, and gypsum enters the grinding gap (54) through the feed port (53).

4. A gypsum grinding device according to claim 3, characterized in that, A pair of support rods (55) are fixedly connected to the lower surface of the grinding disc (52). The lower ends of the support rods (55) are fixedly connected with rollers (56), and an annular track (6) that is in rolling cooperation with the rollers (56) is provided below the grinding disc (52). The track (6) is fixedly connected to the inner wall of the box body (1) through a connecting plate (62), and a convex portion (61) is provided on the surface of the track (6).

5. A gypsum grinding device according to claim 4, characterized in that A material trough (2) is fixedly connected to the lower end of the box body (1) for receiving the ground gypsum.

6. A method for grinding gypsum, using a gypsum grinding device as described in claim 5, characterized in that, It includes the following steps: Step 1: After the gypsum is fed from the upper end of the box body (1), the driving mechanism (3) drives the crushing seat (41) to rotate, and at the same time drives the rotating disc (35) to rotate. When the rotating disc (35) rotates, it drives the pressing seat (42) to reciprocate and extend. The large pieces of gypsum are crushed by the pressing seat (42), and then further crushed by the crushing ring (43) and the annular tooth seat (8). Step 2: The crushed gypsum falls on the grinding mechanism (5) and enters the grinding gap (54) through the feed port (53). When the grinding disc (52) rotates, it grinds the gypsum in the grinding gap (54). Step 3: When the grinding disc (52) rotates, it drives the rollers (56) to roll on the track (6). When the rollers (56) roll to the convex portion (61), it drives the grinding disc (52) to rise, so that the grinding gap (54) becomes larger, enabling the gypsum to be intermittently fed into the grinding gap (54). The ground gypsum is collected in the material trough (2).

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