Mullite sand powder crushing structure

Abstract

The utility model provides a mullite sand powder crushing structure, which belongs to the technical field of crushing devices and comprises a crushing box, a discharge hopper penetrates through the bottom of the crushing box, a feed hopper penetrates through the left side of the upper surface of the crushing box, a first motor is mounted on the inner side surface of the crushing box, and two crushing rollers are rotatably arranged on the left side in the crushing box. Gears are fixedly arranged at the outer ends of the two crushing rollers, a partition plate is fixedly arranged in the center of the inner side of the crushing box, a material opening penetrates through the center of the partition plate, a first screen is mounted on the left side surface of the crushing box through a mounting mechanism, and a second motor is mounted on the right side of the upper surface of the crushing box. After the mullite sand raw material is crushed by the crushing roller, the mullite sand raw material which is not crushed completely falls between the fixed millstone and the rotary millstone to be crushed again, so that the crushing completeness of the mullite sand raw material is ensured.

Description

Technical Field

[0001] This utility model relates to the field of crushing device technology, and in particular to a mullite powder crushing structure. Background Technology

[0002] Mullassa is a high-performance aluminosilicate refractory material made from kaolin through high-temperature sintering. Its forging process is roughly as follows: raw ore selection—grinding—homogenization—forming into blanks—high-temperature calcination—crushing and grading. Mullassa is generally crushed using crushing rollers, that is, two crushing rollers rotating in opposite directions to crush it. After crushing, it is screened through a high-speed running screen.

[0003] For example, in the prior art, the patent with authorization announcement number CN218107971U discloses a mullite crushing and screening device. In this device, the screen is impacted during the reciprocating motion, so the mullite blocking the screen holes is impacted and falls out of the screen holes, without affecting the subsequent screening.

[0004] However, the device only uses two crushing rollers to crush mulite, resulting in incomplete crushing. Furthermore, the screen of the device is set horizontally, making it difficult to remove the incompletely crushed mulite particles for further crushing, which affects its practicality. Therefore, a mulite powder crushing structure was designed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology and to propose a mullite powder crushing structure.

[0006] The technical problem to be solved by this utility model is to provide a mullite powder crushing structure to solve the problem of incomplete crushing of mullite in the existing mullite powder crushing device.

[0007] This utility model provides a crushing structure for mullite powder, including a crushing box. A discharge hopper is provided through the bottom of the crushing box, and a feed hopper is provided through the left side of the upper surface of the crushing box. A first motor is installed on the inner surface of the crushing box. Two crushing rollers are rotatably arranged inside the left side of the crushing box, and gears are fixedly installed at the outer ends of the two crushing rollers. A partition is fixedly installed in the center of the inner side of the crushing box, and a feed inlet is provided through the center of the partition. A first screen is installed on the left side of the crushing box through an installation mechanism. A second motor is installed on the right side of the upper surface of the crushing box, and a drive shaft is installed at the output end of the second motor. A fixed grinding disc is fixedly arranged between the right side of the partition and the right side of the interior of the crushing box. A rotating grinding disc is fixedly installed at the bottom of the drive shaft. A second screen is installed between the partition and the right side of the interior of the crushing box.

[0008] Preferably, the output end of the first motor is connected to the inner end of a crushing roller, and the two gears on the two crushing rollers mesh with each other.

[0009] Preferably, the first screen is inclined with the left side being higher than the right side, and the right end of the first screen extends through the material inlet to the right end of the partition.

[0010] Preferably, the upper surface of the fixed grinding disc is lower than the bottom surface of the feed inlet, and a funnel-shaped groove is provided through the upper surface of the fixed grinding disc, with the bottom surface of the rotating grinding disc closely attached to the bottom surface of the fixed grinding disc.

[0011] Preferably, the mounting assembly includes a mounting groove, a spring, and a mounting plate. The mounting groove is located above the left side surface of the crushing box. A spring is fixedly installed inside the mounting groove. A mounting plate is fixedly installed at the right end of the spring. The left end of the first screen is fixedly installed on the right side surface of the mounting plate.

[0012] Preferably, an impact plate is fixedly provided on the right side of the first screen, a guide rod is fixedly provided on the left side surface of the impact plate and the guide rod passes through the partition, and a cam is fixedly provided in the center of the transmission shaft, the cam being located directly to the right of the impact plate.

[0013] Preferably, a crankshaft is fixedly mounted on the bottom surface of the rotating grinding disc, a connecting rod is rotatably mounted on the crankshaft, and an inverted L-shaped drive rod is rotatably mounted on the left end of the connecting rod via a pin. A guide sleeve matching the inverted L-shaped drive rod is provided through the partition plate. The bottom left end of the inverted L-shaped drive rod is fixedly mounted on the left side of the upper surface of the second screen, and the second screen extends through the bottom of the partition plate. A guide cylinder is provided through the bottom right surface of the crushing box, and the right side of the second screen slides within the guide cylinder.

[0014] Preferably, the outer left side of the crushing box has an inspection door for maintenance and impurity removal.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects:

[0016] 1. This utility model, by setting up a crushing roller, a fixed grinding disc, and a rotating grinding disc, allows for the initial crushing of mullite by activating a first motor and a second motor. Raw materials are fed into the crushing chamber through a feed hopper. The first motor drives one crushing roller to rotate, and a gear at the outer end of the crushing roller drives another gear and another crushing roller to rotate in the opposite direction. This allows the two crushing rollers to work together to initially crush the mullite raw material. After crushing, the mullite raw material falls onto a first screen for sieving. The fully crushed raw material passes through the first screen and is discharged from the discharge hopper. The incompletely crushed mullite raw material separated by the first screen falls to the lower right under gravity, above the fixed grinding disc, and then through a funnel-shaped groove on the fixed grinding disc into the space between the fixed grinding disc and the rotating grinding disc. The second motor drives the rotating grinding disc to rotate, and the fixed grinding disc and the fixed grinding disc grind and crush the incompletely crushed mullite raw material. The crushed mullite raw material falls onto a second screen for sieving and is then discharged from the discharge hopper, ensuring the complete crushing of the mullite raw material.

[0017] 2. This utility model is equipped with an installation component and a cam. When the second motor is turned on, it drives the transmission shaft to rotate. The transmission shaft drives the cam to rotate. The cam hits the impact plate, causing the impact plate to move the first screen to the left. The spring is compressed. When the cam rotates to the other end facing the impact plate, the spring force drives the first screen to move to the right, so that the first screen achieves a reciprocating motion effect, resulting in better screening effect. In addition, the impact of the cam on the impact plate can cause the mullite blocking the screen holes on the first screen to be impacted, causing the mullite to fall out of the screen holes without affecting the subsequent screening of the first screen.

[0018] 3. This utility model is equipped with a second screen. When the second motor drives the rotating grinding disc to rotate, the rotating grinding disc will drive the crankshaft to rotate. The crankshaft drives the inverted L-shaped drive rod to move left and right through the connecting rod. The inverted L-shaped drive rod drives the second screen to move left and right in the guide cylinder, which facilitates the second screen to screen the crushed mullite. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A.

[0023] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0024] [Figure Labels]

[0025] 1. Crushing box; 101. Mounting slot; 102. Spring; 103. Mounting plate; 104. Guide cylinder; 2. Discharge hopper; 3. Feed hopper; 4. First motor; 5. Crushing roller; 6. Gear; 7. Partition plate; 701. Feed inlet; 702. Guide sleeve; 8. First screen; 801. Impact plate; 802. Guide rod; 9. Second motor; 901. Drive shaft; 902. Cam; 10. Fixed grinding disc; 11. Rotating grinding disc; 12. Second screen; 13. Crankshaft; 1301. Connecting rod; 1302. Inverted L-shaped drive rod. Detailed Implementation

[0026] Example:

[0027] like Figures 1-4 As shown, an embodiment of this utility model provides a mullite powder crushing structure, including a crushing box 1, a discharge hopper 2 penetrating through the bottom of the crushing box 1, a feed hopper 3 penetrating through the left side of the upper surface of the crushing box 1, a first motor 4 installed on the inner surface of the crushing box 1, two crushing rollers 5 rotatably arranged inside the left side of the crushing box 1, gears 6 fixedly installed at the outer ends of the two crushing rollers 5, a partition 7 fixedly installed in the center of the inner side of the crushing box 1, a feed inlet 701 penetrating through the center of the partition 7, a first screen 8 installed on the left side of the crushing box 1 through an installation mechanism, a second motor 9 installed on the right side of the upper surface of the crushing box 1, a drive shaft 901 installed at the output end of the second motor 9, a fixed grinding disc 10 fixedly arranged between the right side of the partition 7 and the right side of the interior of the crushing box 1, a rotating grinding disc 11 fixedly installed at the bottom of the drive shaft 901, and a second screen 12 installed between the partition 7 and the right side of the interior of the crushing box 1.

[0028] The grinding chamber 1 is equipped with a crushing roller 5, a fixed grinding disc 10, and a rotating grinding disc 11. When crushing mullet, the first motor 4 and the second motor 9 are turned on. The raw material is fed into the crushing box 1 through the feed hopper 3. The first motor 4 drives one crushing roller 5 to rotate, and the gear 6 at the outer end of the crushing roller 5 drives another gear 6 and another crushing roller 5 to rotate in the opposite direction. This allows the two crushing rollers 5 to cooperate in the initial crushing of the mullet raw material. After crushing, the mullet raw material falls onto the first screen 8 for screening. The completely crushed raw material passes through the first screen. The incompletely crushed mullite raw material, which is screened by the first screen 8, is discharged from the discharge hopper. Under the action of gravity, it falls to the lower right and above the fixed grinding disc 10, and then falls through the funnel-shaped groove on the fixed grinding disc 10 into the space between the fixed grinding disc 10 and the rotating grinding disc 11. The rotating grinding disc 11 is driven to rotate by the second motor 9. The fixed grinding disc 10 grinds and crushes the incompletely crushed mullite raw material. The crushed mullite raw material falls onto the second screen 12 for screening and is then discharged from the discharge hopper 2, ensuring the uniformity of grinding.

[0029] When collecting the ground mullite raw material discharged from hopper 2, it can be collected by attaching a collection bag to hopper 2 to reduce dust generation during collection.

[0030] In this embodiment, the output end of the first motor 4 is connected to the inner end of a crushing roller 5, and the two gears 6 on the two crushing rollers 5 mesh with each other, so that the first motor 4 can drive the two crushing rollers 5 to rotate in opposite directions to achieve the crushing effect.

[0031] In this embodiment, the first screen 8 is inclined with the left side being higher than the right side, and the right end of the first screen 8 extends through the feed inlet 701 to the right end of the partition 7, so that the first screen 8 can screen out the incompletely crushed mullite raw material, which moves to the lower right and falls under the action of gravity.

[0032] In this embodiment, the upper surface of the fixed grinding disc 10 is at a lower level than the bottom surface of the feed inlet 701, and a funnel-shaped groove is provided through the upper surface of the fixed grinding disc 10. The bottom surface of the rotating grinding disc 11 is in close contact with the bottom surface of the fixed grinding disc 10, so that the rotating grinding disc 11 can cooperate with the fixed grinding disc 10 to grind and crush the mullite raw material.

[0033] In this embodiment, the mounting assembly includes a mounting groove 101, a spring 102, and a mounting plate 103. The mounting groove 101 is located above the left side surface of the crushing box 1. The spring 102 is fixedly installed inside the mounting groove 101. The mounting plate 103 is fixedly installed at the right end of the spring 102. The left end of the first screen 8 is fixedly installed on the right side surface of the mounting plate 103.

[0034] In this embodiment, an impact plate 801 is fixedly provided on the right side of the first screen 8, a guide rod 802 is fixedly provided on the left side surface of the impact plate 801, and the guide rod 802 passes through the partition plate 7. A cam 902 is fixedly provided in the center of the transmission shaft 901, and the cam 902 is located on the right side of the impact plate 801.

[0035] With the installation components and cam 902, the second motor 9 is turned on to drive the transmission shaft 901 to rotate. The transmission shaft 901 drives the cam 902 to rotate. The cam 902 collides with the impact plate 801, causing the impact plate 801 to move the first screen 8 to the left. The spring 102 is compressed. When the cam 902 rotates to the other end facing the impact plate 801, the spring 102's elasticity drives the first screen 8 to move to the right, so that the first screen 8 achieves the effect of reciprocating left and right, resulting in better screening effect. In addition, the impact of the cam 902 on the impact plate 801 can cause the mullite blocking the screen holes on the first screen 8 to be impacted, causing the mullite to fall out of the screen holes without affecting the subsequent screening of the first screen.

[0036] In this embodiment, a crankshaft 13 is fixedly installed on the bottom surface of the rotating grinding disc 11, and a connecting rod 1301 is rotatably installed on the crankshaft 13. An inverted L-shaped drive rod 1302 is rotatably installed on the left end of the connecting rod 1301 via a pin. A guide sleeve 702 matching the inverted L-shaped drive rod 1302 is installed through the partition plate 7. The bottom of the left end of the inverted L-shaped drive rod 1302 is fixedly installed on the left side of the upper surface of the second screen 12, and the second screen 12 passes through the bottom of the partition plate 7. A guide cylinder 104 is installed through the bottom of the right side surface of the crushing box 1, and the right side of the second screen 12 slides inside the guide cylinder 104.

[0037] With the second screen 12 provided, when the second motor 9 drives the rotating grinding disc 11 to rotate, the rotating grinding disc 11 will drive the crankshaft 13 to rotate. The crankshaft 13 drives the inverted L-shaped drive rod 1302 to move left and right through the connecting rod 1301. The inverted L-shaped drive rod 1302 drives the second screen 12 to move left and right in the guide cylinder 104, which facilitates the second screen 12 to screen the crushed mullite.

[0038] In this embodiment, a maintenance door for inspection and impurity removal is opened on the left side of the outer surface of the crushing box 1.

[0039] The presence of an inspection door facilitates maintenance and repair of the equipment inside the crushing chamber 1, and also allows for the removal of impurities screened on the second screen 12, thus enabling the second screen 12 to screen the crushed mullite.

[0040] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A structure for breaking up a mullite sand powder, characterized by: The device includes a crushing box (1), a discharge hopper (2) extending through the bottom of the crushing box (1), a feed hopper (3) extending through the left side of the upper surface of the crushing box (1), a first motor (4) mounted on the inner surface of the crushing box (1), two crushing rollers (5) rotating inside the left side of the crushing box (1), gears (6) fixedly mounted on the outer ends of the two crushing rollers (5), a partition (7) fixedly mounted in the center of the inner side of the crushing box (1), and a feed inlet (701) extending through the center of the partition (7). A first screen (8) is installed on the left side surface of the crushing box (1) by means of an installation mechanism. A second motor (9) is installed on the right side of the upper surface of the crushing box (1). A drive shaft (901) is installed at the output end of the second motor (9). A fixed grinding disc (10) is fixedly arranged between the right side surface of the partition (7) and the inside right side of the crushing box (1). A rotating grinding disc (11) is fixedly installed at the bottom of the drive shaft (901). A second screen (12) is installed between the partition (7) and the inside right side of the crushing box (1).

2. The fused corundum powder breaking structure according to claim 1, characterized in that: The output end of the first motor (4) is connected to the inner end of a crushing roller (5), and the two gears (6) on the two crushing rollers (5) mesh with each other.

3. The fused corundum powder breaking structure according to claim 2, characterized in that: The first screen (8) is inclined with the left side being higher than the right side, and the right end of the first screen (8) extends through the feed inlet (701) toward the right end of the partition (7).

4. The fused corundum powder breaking structure according to claim 3, characterized in that: The upper surface of the fixed grinding disc (10) is lower than the bottom surface of the feed inlet (701), and a funnel-shaped groove is provided through the upper surface of the fixed grinding disc (10), and the bottom surface of the rotating grinding disc (11) is in close contact with the bottom surface of the fixed grinding disc (10).

5. The fused corundum powder breaking structure according to claim 1, characterized in that: The installation mechanism includes an installation groove (101), a spring (102), and an installation plate (103). The installation groove (101) is located above the left side surface of the crushing box (1). The spring (102) is fixedly installed inside the installation groove (101). The right end of the spring (102) is fixedly installed with the installation plate (103). The left end of the first screen (8) is fixedly installed on the right side surface of the installation plate (103).

6. The fused corundum powder breaking structure according to claim 5, characterized in that: An impact plate (801) is fixedly provided on the right side of the first screen (8), and a guide rod (802) is fixedly provided on the left side surface of the impact plate (801), and the guide rod (802) passes through the partition plate (7). A cam (902) is fixedly provided in the center of the transmission shaft (901), and the cam (902) is located on the right side of the impact plate (801).

7. The fused corundum powder breaking structure according to claim 6, characterized in that: A crankshaft (13) is fixedly installed on the bottom surface of the rotating grinding disc (11). A connecting rod (1301) is rotatably installed on the crankshaft (13). An inverted L-shaped drive rod (1302) is rotatably installed on the left end of the connecting rod (1301) via a pin. A guide sleeve (702) matching the inverted L-shaped drive rod (1302) is installed through the partition plate (7). The bottom of the left end of the inverted L-shaped drive rod (1302) is fixedly installed on the left side of the upper surface of the second screen (12), and the second screen (12) passes through the lower part of the partition plate (7). A guide cylinder (104) is installed through the lower part of the right side surface of the crushing box (1), and the right side of the second screen (12) slides in the guide cylinder (104).

8. The fused corundum powder breaking structure according to claim 6, characterized in that: The outer surface of the crushing box (1) has an inspection door on the left side for maintenance and impurity removal.

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