Ceramic powder double-roller crushing device

Abstract

The utility model belongs to the technical field of ceramic powder crushing equipment, and particularly relates to a ceramic powder double-roller crushing device which comprises a crushing bin with the periphery closed, a primary crushing mechanism and a secondary crushing mechanism, a feeding hopper is arranged at the top of the crushing bin, and a discharging hopper is arranged at the bottom of the crushing bin; the primary crushing mechanism is arranged in the crushing bin and located under the feeding hopper and comprises two upper paired rollers which move in the opposite directions and are adjustable in distance. The secondary crushing mechanism is arranged between the primary crushing mechanism and the discharging hopper and comprises two lower paired rollers which move in opposite directions and are adjustable in distance, and the upper paired rollers and the lower paired rollers are arranged in parallel; the outer contours of the two upper rollers are provided with a plurality of protrusions with teeth, the protrusions are distributed in a staggered mode, and the two lower rollers are optical shafts. The distance between the upper roller pair and the lower roller pair can be adjusted according to the size and shape of ceramic powder, meanwhile, rapid crushing is achieved through the protrusions on the upper roller pair, impurities are not likely to be introduced into the powder, the controllability of particles after crushing is high, operation is easy, and the occupied area of equipment is small.

Description

Technical Field

[0001] The utility model belongs to the technical field of ceramic powder crushing equipment, in particular to a ceramic powder double-roller crushing device. Background Art

[0002] As an important branch of the country's vigorous development, ceramic powder has developed rapidly in recent years. Structural ceramics, functional ceramics, electronic ceramics, semiconductor ceramics, rare earth ceramics and other technologies are developing rapidly and with high quality. Ceramic powder processing is an indispensable process in industrial production, of which the first is process crushing. The commonly used machine for crushing is a crusher. The traditional crusher is a direct crushing method, and the obtained material particle size is large, resulting in a large part of the crushed material being unable to pass through a screen with a specific mesh number. The crusher is not very targeted and cannot be used for materials of different shapes and sizes. It is also easy to introduce impurities and cause the crushing to be not fine enough. Utility Model Content

[0003] In order to solve the problems in the above-mentioned background technology, the utility model provides a ceramic powder double-roller crushing device, in which a plurality of staggered protrusions are provided on the outer contour of the upper pair of rollers to increase the bite force on materials of different shapes, so that the particles after crushing are highly controllable, the operation is simple, and the equipment occupies a small area.

[0004] The utility model adopts the following technical solutions:

[0005] A ceramic powder roller crushing device, comprising:

[0006] A crushing chamber with a feed hopper on the top and a discharge hopper at the bottom;

[0007] The primary crushing mechanism is arranged in the crushing chamber and is located directly below the feed hopper, and includes two upper rollers moving in opposite directions;

[0008] The secondary crushing mechanism is arranged between the primary crushing mechanism and the discharge hopper, and comprises two lower rollers moving in opposite directions, and the upper rollers and the lower rollers are arranged in parallel;

[0009] A plurality of toothed protrusions are arranged on the outer contours of the two upper rollers, and the plurality of protrusions are staggeredly distributed, and the two lower rollers are smooth axes.

[0010] Furthermore, the height of the protrusions on the upper pair of rollers is 0.5-2 cm.

[0011] Furthermore, the protrusions on the upper pair of rollers are provided with several circles along the axial direction, each circle has 4-10 protrusions, and the protrusions of two adjacent circles are staggered.

[0012] Furthermore, an intermediate hopper is provided between the primary crushing mechanism and the secondary crushing mechanism, and the intermediate hopper guides the material crushed by the primary crushing mechanism into the secondary crushing mechanism.

[0013] Furthermore, the feed hopper, the intermediate hopper and the discharge hopper are all funnel-shaped hoppers, and the upper outer edges of the intermediate hopper and the discharge hopper are in contact with and fixed to the inner side wall of the crushing bin.

[0014] Furthermore, the upper pair of rollers and the lower pair of rollers are both made of polytetrafluoroethylene material.

[0015] Furthermore, the spacing between the two upper pairs of rollers is adjusted by a first adjusting mechanism, and the spacing between the two lower pairs of rollers is adjusted by a second adjusting mechanism. The spacing between the two upper pairs of rollers is adjusted in a range of 0-5 cm, and the spacing between the two lower pairs of rollers is adjusted in a range of 0-2 cm.

[0016] Furthermore, the two upper pairs of rollers are respectively a first fixed roller and a first movable roller, and the first adjusting mechanism is arranged on the first movable roller, and the first adjusting mechanism includes a screw rod fixedly connected to the bearing seat of the first movable roller and a nut screwed to the outermost end of the screw rod; rotating the nut forward or reversely causes the screw rod to move horizontally, and drives the first movable roller to move in a direction away from or close to the first fixed roller.

[0017] Furthermore, the two lower pairs of rollers are respectively a second fixed roller and a second movable roller, and the second adjusting mechanism is arranged on the second movable roller, and the structure of the second adjusting mechanism is the same as that of the first adjusting mechanism.

[0018] Furthermore, a plurality of supporting feet are provided circumferentially at the lower end of the crushing bin, and the height of the supporting feet is 30-50 cm.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] (1) The roller crushing device of the utility model is provided with a plurality of staggered tooth-shaped protrusions on the outer contour of the upper roller, which can increase the bite force on materials of different shapes, make the particles after crushing highly controllable, simple to operate, and the equipment occupies a small area.

[0021] (2) The spacing between the two upper pairs of rollers and the spacing between the two lower pairs of rollers of the roller crushing device of the utility model are adjustable, so that the crushing device can better adapt to crushed objects of different sizes and shapes, and at the same time, the particle size after crushing can be highly controllable. The crushed objects can be crushed to different degrees for multiple times and finally pass through a screen with a specific mesh size.

[0022] (3) The upper pair of rollers and the lower pair of rollers of the roller crushing device of the utility model are made of polytetrafluoroethylene material, which has strong high temperature resistance, certain ductility and is not easy to produce impurities and pollutants when crushing materials, thereby ensuring the purity of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a front view of the internal structure of the crushing device of the utility model;

[0025] Figure 2 It is a schematic diagram of the gap adjustment structure of the upper pair of rollers and the lower pair of rollers of the crushing device of the utility model;

[0026] Figure 3 This is a schematic diagram of the first adjustment mechanism of the crushing device of the utility model;

[0027] Figure 4 This is a side view of the internal structure of the crushing device of the utility model;

[0028] Among them: 1-crushing bin, 2-feed hopper, 3-discharge hopper, 4-upper pair of rollers, 41-first fixed roller, 42-second fixed roller, 5-lower pair of rollers, 51-second fixed roller, 52-second movable roller, 6-protrusion, 7-middle hopper, 8-first adjusting mechanism, 81-screw, 82-nut, 83-first fixed plate, 84-second fixed plate, 85-movable plate, 86-pointer, 87-scale, 88-spring, 89-pressure adjustment bolt, 9-second adjusting mechanism, 10-support foot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

[0030] The following is combined with Figure 1 To Attachment Figure 3 And specific embodiments describe the present invention in detail.

[0031] like Figure 1-3As shown, the utility model provides a ceramic powder roller crushing device, comprising: a crushing bin 1, a feed hopper 2 is provided on the top, and a discharge hopper 3 is provided on the bottom. The crushing bin 1 is set as a closed bin, which can prevent external impurities from entering on the one hand, and can protect the operator when the equipment is running on the other hand; it also includes a primary crushing mechanism and a secondary crushing mechanism arranged in the crushing bin 1, the primary crushing mechanism is located directly below the feed hopper 2, and includes two upper rollers 4 that rotate in opposite directions; the secondary crushing mechanism is arranged between the primary crushing mechanism and the discharge hopper 3, and includes two lower rollers 5 that rotate in opposite directions, the upper rollers 4 and the lower rollers 5 are arranged in parallel, and the gap between the upper rollers 4 is located directly above the gap between the lower rollers 5; a plurality of toothed protrusions 6 are provided on the outer contours of the two upper rollers 4, and the plurality of protrusions 6 are staggered. The two lower rollers 5 are smooth axes, and the upper rollers 4 with the protrusions 6 can increase the bite force of materials of different sizes and shapes, so that the materials are initially crushed, and the materials after the initial crushing become smaller and then enter between the two smooth lower rollers 5 for secondary crushing.

[0032] Specifically, in some embodiments, the height of the protrusion 6 on the upper pair of rollers 4 is 0.5-2 cm. The setting of the protrusion 6 can increase the bite force of materials of different shapes and sizes, so that the materials are initially crushed. If the protrusion 6 is too small, the friction or bite force will be reduced, and if the protrusion 6 is too high, the protrusion 6 part will have the risk of being easily damaged by force, and the initial crushing effect will be worse. Therefore, the best effect is when the height range of the protrusion 6 is 0.5-2 cm.

[0033] In the present application, pulleys 10 are provided at both ends of the upper pair of rollers 4 and the lower pair of rollers 5 corresponding to each other. The upper pair of rollers 4 and the lower pair of rollers 4 are connected by belts, and motors are connected to the two upper pair of rollers 4. The upper pair of rollers 4 are driven to rotate by the motor, and then the lower pair of rollers 5 are driven to rotate by the belts.

[0034] Specifically, in some embodiments, the protrusions 6 on the upper pair of rollers 4 are provided with several circles along the axial direction, each circle has 4-10 protrusions, and the protrusions 6 of two adjacent circles are staggered.

[0035] Specifically, in some embodiments, an intermediate hopper 7 is provided between the primary crushing mechanism and the secondary crushing mechanism, and the intermediate hopper 7 guides the material crushed by the primary crushing mechanism into the secondary crushing mechanism. The upper opening end of the intermediate hopper 7 can completely surround the crushing gap between the upper pair of rollers 4, so that all the material after the primary crushing can be gathered into the secondary crushing mechanism.

[0036] Specifically, in some embodiments, the feed hopper 2, the intermediate hopper 7, and the discharge hopper 3 are all funnel-shaped hoppers, and the upper outer edges of the intermediate hopper 7 and the discharge hopper 3 are in contact and fixed with the inner wall of the crushing bin 1, ensuring that all the materials after the first crushing are gathered into the secondary crushing mechanism and all the materials after the second crushing are gathered into the discharge hopper 3.

[0037] Specifically, in some embodiments, the upper pair of rollers 4 and the lower pair of rollers 5 are both made of polytetrafluoroethylene material. The polytetrafluoroethylene material has a high temperature resistance of up to 250°C. This material has a certain ductility and does not produce impurities to contaminate the material when crushing the material, thereby ensuring the purity of the material.

[0038] Specifically, Figure 2 As shown, in some embodiments, the spacing between the two upper rollers 4 is adjusted by a first adjustment mechanism 8, and the spacing between the two lower rollers 5 is adjusted by a second adjustment mechanism 9. The spacing between the two upper rollers 4 is adjusted in a range of 0-5 cm, and the spacing between the two lower rollers 5 is adjusted in a range of 0-2 cm. During use, the gap between the upper rollers 4 and the lower rollers 5 can be adjusted according to the size and shape of the material to achieve rapid crushing.

[0039] Specifically, Figure 3 As shown, the upper pair of rollers are respectively a first fixed roller 41 and a first movable roller 42, and the first adjusting mechanism 8 is arranged on the first movable roller 42. The first adjusting mechanism 8 includes a screw rod 81 fixedly connected to the bearing seat of the first movable roller 42 and a nut 82 screwed to the outermost end of the screw rod 81; rotating the nut 82 forward or reversely causes the screw rod 81 to move horizontally, and drives the first movable roller 42 to move away from or close to the first fixed roller 41.

[0040] More specifically, the screw 81 located outside the bearing seat is respectively sleeved with a first fixed plate 83, a second fixed plate 84 and a movable plate 85, the movable plate 85 is located between the first fixed plate 83 and the second fixed plate 84, the screw 81 is screwed to the movable plate 85, when the screw 81 drives the first movable roller 42 to move toward the first fixed roller 41, the movable plate 85 moves outward, when the screw 81 drives the first movable roller 42 to move away from the first fixed roller 41, the movable plate 85 moves inward; a pointer 86 is fixed on the movable plate 85, and a scale 87 is fixed on the frame, the pointer 86 moves with the movable plate 85, and the scale number indicated by the pointer 86 is the adjusted gap between the upper pair of rollers 4.

[0041] Preferably, a plurality of springs 88 are provided between the movable plate 85 and the first fixed plate 83 of the present application, and the springs 88 are provided around the screw 81, and the springs 88 are used to ensure the verticality of the entire crushing bin. A pressure-adjusting bolt 89 is screwed on the second fixed plate 84, and the pressure-adjusting bolt 89 can make it abut against the movable plate 85, and the pressure-adjusting bolt 89 and the spring 88 are provided correspondingly; when the screw 81 drives the first movable roller 42 to move away from the first fixed roller 41, the movable plate 85 moves inward, so that the distance between the movable plate 85 and the first fixed plate 83 becomes smaller, and the compression amount of the spring becomes larger. At this time, by rotating the pressure-adjusting bolt 89, the pressure of the pressure-adjusting bolt 89 on the movable plate 85 is reduced, and then the compression force of the spring 88 is reduced, so that the entire crushing bin 1 remains balanced.

[0042] Specifically, the two lower pairs of rollers 5 are respectively a second fixed roller 51 and a second movable roller 52 , and the second adjustment mechanism 9 is disposed on the second movable roller 52 . The structure of the second adjustment mechanism 9 is the same as that of the first adjustment mechanism 8 , which will not be described in detail.

[0043] Specifically, a plurality of supporting feet 10 are provided in the circumferential direction of the lower end of the crushing bin 1. The height of the supporting feet 10 is 30-50 cm, which is convenient for operators to collect materials.

[0044] The utility model takes the crushed and calcined 25*25*4cm block ceramic powder as an example to illustrate the use process:

[0045] 1. Operate the first adjustment mechanism 8 to adjust the spacing of the upper pair of rollers 4 to 3 cm; operate the second adjustment mechanism 9 to adjust the spacing of the lower pair of rollers 5 to 1.5 cm, turn on the start switches of the upper pair of rollers 4 and the lower pair of rollers 5 to rotate the upper pair of rollers 4 and the lower pair of rollers 5, and put the materials vertically into the feed hopper 2. After the materials are crushed twice, they are collected through the outlet of the discharge hopper 3;

[0046] 2. Operate the first adjustment mechanism 8 to adjust the spacing of the upper pair of rollers 4 to 0.5 cm; operate the second adjustment mechanism 9 to adjust the spacing of the lower pair of rollers 4 to 0.2 cm, turn on the start switches of the upper pair of rollers 4 and the lower pair of rollers 5 to rotate the upper pair of rollers 4 and the lower pair of rollers 5, and put the materials vertically into the feed hopper. After the materials are crushed twice, they are collected through the outlet of the discharge hopper 3;

[0047] 3. Operate the second adjustment mechanism 8 to adjust the spacing of the upper pair of rollers 4 to 0.2 cm; operate the second adjustment mechanism 9 to adjust the spacing of the lower pair of rollers 4 to 0 cm, turn on the start switches of the upper pair of rollers 4 and the lower pair of rollers 5, so that the upper pair of rollers 4 and the lower pair of rollers 5 rotate, and put the materials vertically into the feed hopper. After the materials are crushed twice, they are collected through the outlet of the discharge hopper 3;

[0048] 4. The powder after three crushings can be passed through an 80-mesh sieve.

[0049] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A ceramic powder double roller crushing device, characterized in that: include: A crushing chamber with a feed hopper on the top and a discharge hopper at the bottom; A primary crushing mechanism is arranged in the crushing bin and is located directly below the feed hopper, and includes two upper rollers moving in opposite directions; A secondary crushing mechanism is arranged between the primary crushing mechanism and the discharge hopper, and comprises two lower pairs of rollers moving in opposite directions, wherein the upper pair of rollers and the lower pair of rollers are arranged in parallel; The outer contours of the two upper rollers are provided with a plurality of toothed protrusions, the plurality of protrusions are staggered and distributed, and the two lower rollers are optical axes; The spacing between the two upper pairs of rollers is adjusted by a first adjustment mechanism, and the spacing between the two lower pairs of rollers is adjusted by a second adjustment mechanism. The adjustment range of the spacing between the two upper pairs of rollers is 0-5 cm, and the adjustment range of the spacing between the two lower pairs of rollers is 0-2 cm. The two upper pairs of rollers are respectively a first fixed roller and a first movable roller, the first adjusting mechanism is arranged on the first movable roller, and the first adjusting mechanism comprises a screw rod fixedly connected to the bearing seat of the first movable roller and a nut screwed on the outermost end of the screw rod; the nut is rotated forward or reversely to make the screw rod move horizontally, and drive the first movable roller to move in a direction away from or close to the first fixed roller; The screw rod located outside the bearing seat is respectively sleeved with a first fixed plate, a second fixed plate and a movable plate, the movable plate is located between the first fixed plate and the second fixed plate, the screw rod is screwed to the movable plate, a pointer is fixed on the movable plate, a scale is fixed on the frame, and the pointer moves within the scale range.

2. The ceramic powder double-roll crushing device according to claim 1, characterized in that: The height of the protrusions on the upper pair of rollers is 0.5-2 cm.

3. The ceramic powder double-roll crushing device according to claim 1, characterized in that: The protrusions on the upper pair of rollers are arranged in a plurality of circles along the axial direction, each circle has 4-10 protrusions, and the protrusions of two adjacent circles are arranged in a staggered manner.

4. The ceramic powder double-roll crushing device according to claim 1, characterized in that: An intermediate hopper is provided between the primary crushing mechanism and the secondary crushing mechanism, and the intermediate hopper introduces the material crushed by the primary crushing mechanism into the secondary crushing mechanism.

5. The ceramic powder double-roll crushing device according to claim 4, characterized in that: The feed hopper, the intermediate hopper and the discharge hopper are all funnel-shaped hoppers, and the upper outer edges of the intermediate hopper and the discharge hopper are in contact with and fixed to the inner side wall of the crushing bin.

6. The ceramic powder double-roll crushing device according to claim 1, characterized in that: The upper pair of rollers and the lower pair of rollers are both made of polytetrafluoroethylene material.

7. The ceramic powder double-roll crushing device according to claim 1, characterized in that: The two lower pairs of rollers are respectively a second fixed roller and a second movable roller, the second adjusting mechanism is arranged on the second movable roller, and the structure of the second adjusting mechanism is the same as that of the first adjusting mechanism.

8. The ceramic powder double-roll crushing device according to claim 1, characterized in that: A plurality of supporting feet are circumferentially arranged at the lower end of the crushing bin, and the height of the supporting feet is 30-50 cm.

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