Ball milling device for ceramsite sand production

Abstract

The utility model relates to a ball milling device for ceramsite sand production, which comprises a grid plate, a mounting plate, a balancing weight, a swing plate and a cleaning component, two sections of grid holes with different apertures are arranged on the grid plate, a coaxial circular shaft is arranged on the mounting plate, the end part of the circular shaft is connected with the balancing weight through a bearing, the swing plate is fixedly arranged at the top end of the balancing weight, and the cleaning component is arranged on the mounting plate. A cleaning assembly is arranged on the swing plate, the common gravity center of the balancing weight, the swing plate and the cleaning assembly is located on the lower side of the axis of the mounting plate, and the cleaning assembly comprises a cleaning cone and a triggering piece. The grate plate rotates relative to the cleaning cone of the cleaning assembly, the cleaning cone can be embedded into the grate hole and has the trend of being embedded into the grate hole when extruded by the spring, and therefore the cleaning cone can smoothly remove material particles stuck in the grate hole, and blockage of the grate hole is dredged. And when the depth of the cleaning cone embedded into the sieve hole is larger than that of the sieve hole, the triggering piece is propped against and triggered to warn the abrasion degree of the grate hole, and workers do not need to enter the grate hole for checking.

Description

Technical Field

[0001] The utility model relates to the technical field of ball mills, in particular to a ball mill device for producing ceramsite sand. Background Art

[0002] Ball mill is a key equipment for crushing materials after they are broken. The drum of the ball mill is equipped with grinding bodies (such as steel balls). Materials are loaded into the drum from the feed end of the ball mill. When the drum rotates, the grinding bodies are attached to the inner lining of the drum due to inertia, centrifugal force and friction and are carried away by the drum. The process of the grinding bodies being carried away by the drum has a certain grinding effect on the materials. When they are brought to a certain height, they are thrown down due to the gravity of the grinding bodies themselves. The falling grinding bodies crush the materials in the drum like projectiles.

[0003] There are usually multiple grinding chambers in a ball mill, which are separated by partition plates. The partition plates can divide the grinding bodies in the grinding chamber. At the same time, the materials ground to a certain size pass through the grate holes of the grate plate on the partition plate to enter the next grinding chamber for grinding. The size and opening rate of the grate holes determine the flow rate of the grinding materials, thereby affecting the grinding time of the materials. In the actual production process, coarse particles often get stuck in the grate holes, causing blockage, affecting the normal passage of materials, and requiring a lot of time and labor to clean up, which greatly affects production efficiency.

[0004] In addition, the partition plate is in direct contact with the grinding body, so it will be severely worn by the grinding body, especially when the grinding body continuously wears the aperture of the grate holes of the grate plate, the grate holes can no longer effectively screen the material; moreover, the degree of wear of the grate holes on the partition plate is often difficult to observe directly, and the staff need to stop the machine and enter the drum to observe it, which is dangerous and affects production efficiency. The staff can only infer the degree of wear based on experience and therefore cannot accurately know whether the grate plate needs to be replaced. Utility Model Content

[0005] The utility model aims to provide a ball mill for producing ceramsite sand, which is used to solve the above problems existing in the prior art.

[0006] In order to solve the above problems, the utility model provides a ball mill for producing ceramsite sand, comprising a grate plate, a mounting plate, a counterweight, a swing plate and a cleaning assembly, wherein the grate plate is provided with a plurality of grate holes with two sections of different apertures along its circumferential direction, and the surface of the grate holes along the circumferential direction of the grate plate is parallel to the axis of the grate plate; the grate plate is fixed on the mounting plate, and a coaxial circular shaft is provided on the mounting plate, and the end of the circular shaft is connected to the counterweight through a bearing; the counterweight is arranged on one side of the large-aperture section of the grate hole; a swing plate is fixed on the top of the counterweight, and a cleaning assembly is arranged on the swing plate; the common center of gravity of the counterweight, the swing plate and the cleaning assembly is on the lower side of the axis of the mounting plate; the cleaning assembly comprises a cleaning cone and a trigger member, the cleaning cone can be embedded in the grate hole and has a tendency to be embedded in the grate hole when pressed by a spring; when the depth of the cleaning cone embedded in the grate hole is greater than the depth of the grate hole, the trigger member is triggered to detect the degree of wear of the grate hole.

[0007] The ball milling device for producing ceramsite sand provided by the utility model also has the following technical features:

[0008] Furthermore, the cleaning assembly also includes a sliding rod, a slider and an outer shell. The sliding rod is fixedly connected to the slider. The sliding rod is inserted through the swing plate and the outer shell. One end of the sliding rod is fixedly connected to the cleaning cone. The slider can slide in the outer shell along the axial direction of the mounting plate. The outer shell is fixedly connected to the swing plate. The spring is inserted through the sliding rod and is located between the slider and the outer shell. The spring pushes the slider so that the cleaning cone has a tendency to embed into the grate hole.

[0009] Furthermore, the outer shell is arranged on a side of the swing plate away from the grate plate, and the trigger member is arranged in the slider and extends from the outer surface of the slider toward the swing plate; when the cleaning cone is completely embedded in the grate hole, there is a gap between the slider and the swing plate, and the gap is equal to the distance the trigger member extends outward.

[0010] Furthermore, both ends of the grate hole are provided with inclined surfaces penetrating the grate hole, and the cleaning cone is provided with a conical surface, and the conical surface cooperates with the inclined surface to enable the cleaning cone to overcome the elastic force of the spring and slide out of the grate hole.

[0011] Furthermore, the grate hole also includes a small aperture section, the cleaning cone includes a sliding section and a cleaning section, the cleaning section is embedded in the small aperture section, the sliding section is embedded in the large aperture section and abuts against the step between the large aperture section and the small aperture section.

[0012] Furthermore, a cleaning blade set is provided on the conical surface of the cleaning section.

[0013] Furthermore, two steps are provided between the large aperture section and the small aperture section, and the areas of the step surfaces of the two steps are equal.

[0014] Furthermore, the swing plate is symmetrically arranged along a plane perpendicular to the horizontal plane and coincident with the axis of the mounting plate, and the distances between the two ends of the grate hole and the two sides of the grate plate are equal.

[0015] Further, the projection of the counterweight block on the mounting plate along the axial direction of the mounting plate is within the projection range of the mounting plate.

[0016] Furthermore, it also includes a ball baffle, which is used to prevent the grinding body from damaging the counterweight block, the swing plate and the cleaning assembly.

[0017] The utility model has the following beneficial effects: the grate plate rotates relative to the cleaning cone of the cleaning component, and the cleaning cone can be embedded in the grate hole and is squeezed by the spring to have a tendency to be embedded in the grate hole, so the cleaning cone can smoothly remove material particles stuck in the grate hole and dredge the blockage of the grate hole; and when the depth of the cleaning cone embedded in the grate hole is greater than the depth of the grate hole, the trigger member is resisted and triggered to warn the degree of wear of the grate hole, without the need for staff to enter to check. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram and a structural decomposition schematic diagram of the counterweight block, the swing plate and the cleaning assembly of the utility model;

[0020] Figure 3 Figure 2 A schematic diagram from another angle;

[0021] Figure 4 It is a schematic diagram of the structural decomposition of the cleaning component of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the cleaning cone of the utility model;

[0023] Figure 6 It is a schematic diagram of the structural decomposition of the grate plate, the mounting plate and the counterweight block of the utility model;

[0024] Figure 7 for Figure 6 Schematic diagram of the cross section along line AA;

[0025] Figure 8 for Figure 6 Detail of point B in the middle. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0027] like Figures 1 to 8In the embodiment of the ball mill for producing expanded clay sand of the utility model shown in the figure, the ball mill for producing expanded clay sand includes a grate plate 1, a mounting plate 2, a counterweight 3, a swing plate 4 and a cleaning assembly 5. The two arc surfaces of the fan-shaped grate plate 1 are respectively fixed on the mounting plate 2 and the drum of the ball mill, and the same grate plates 1 are arranged in a circular array; the grate plate 1 and the mounting plate 2 are part of the partition plate of the ball mill, and the partition plate can separate grinding bodies of different sizes (such as steel balls) in the ball mill chamber, and the grate plate 1 on the partition plate also plays a role in screening out a part of the slurry that has been preliminarily ground and qualified to enter the next chamber; in this embodiment, it also includes a ball baffle, which is only used to separate the grinding bodies on the other side to prevent the grinding bodies from damaging the counterweight 3, the swing plate 4 and the cleaning assembly 5.

[0028] Specifically, the grate plate 1 is provided with several grate holes 101 with two sections of different apertures along its circumferential direction, and the surface of the grate holes 101 along the circumferential direction of the grate plate 1 is parallel to the axis of the grate plate 1, and this is true for the two sections of grate holes 101 with different apertures. A coaxial circular shaft 21 is provided on the mounting plate 2, and the mounting plate 2 and the circular shaft 21 can be rotatably connected or fixedly connected, which is not limited here; the end face of one end of the circular shaft 21 is flush with the mounting plate 2 to prevent wear by the grinding body, and the end of the other end of the circular shaft 21 is connected to the counterweight 3 through a bearing, that is, the circular shaft 21 and the counterweight 3 are rotatably connected; the counterweight 3 is arranged on one side of the large aperture section 102 of the two sections of grate holes 101 with different apertures; a swing plate 4 is fixedly provided on the top of the counterweight 3, which can be fixedly connected by bolts or welding; an array of cleaning components 5 is provided on the swing plate 4, and the number of cleaning components 5 is consistent with the number of grate holes 101 on a single grate plate 1, and a group of cleaning components 5 is provided. The component 5 corresponds to a grate hole 101; the common center of gravity of the counterweight block 3, the swing plate 4 and the cleaning component 5 is on the lower side of the axis of the mounting plate 2, so that the swing plate 4 and the cleaning component 5 can be located on the upper side of the axis of the mounting plate 2 to prevent the cleaning component 5 from contacting the grinding body and being damaged; the cleaning component 5 includes a cleaning cone 51 and a trigger member 52, the cleaning cone 51 can be embedded in the grate hole 101 and is squeezed by the spring 53 to have a tendency to be embedded in the grate hole 101, so the cleaning cone 51 can smoothly remove the particles stuck in the grate hole 101; when the depth of the cleaning cone 51 embedded in the grate hole 101 is greater than the depth of the grate hole 101, the trigger member 52 is resisted and triggered to detect the degree of wear of the grate hole 101.

[0029] In one embodiment of the present application, preferably, the cleaning assembly 5 also includes a slide rod 54, a slider 55 and a shell 56, the slide rod 54 is fixedly connected to the slider 55, the slide rod 54 is inserted through the swing plate 4 and the shell 56, one end of the slide rod 54 is fixedly connected to the cleaning cone 51, the slider 55 can slide axially along the mounting plate 2 in the shell 56, the shell 56 is fixedly connected to the swing plate 4, the spring 53 is inserted through the slide rod 54 and is located between the slider 55 and the shell 56; in this way, the spring 53 pushes the slider 55 so that the cleaning cone 51 has a tendency to embed into the grate hole 101.

[0030] In one embodiment of the present application, preferably, the shell 56 is provided on a side of the swing plate 4 away from the grate plate 1, and the trigger member 52 is provided in the slider 55 and extends from the outer surface of the slider 55 toward the swing plate 4; when the cleaning cone 51 is fully embedded in the grate hole 101, there is a gap between the slider 55 and the swing plate 4, and the gap is equal to the distance the trigger member 52 extends outward, and the shell 56 can prevent the material from entering the gap between the slider 55 and the swing plate 4; in this way, when the gap is smaller than the distance the trigger member 52 extends outward, the trigger member 52 can collide with the swing plate 4 to trigger the trigger member 52; the trigger member 52 can adopt a pressure sensor, such as a corresponding device that can pass current after the collision, etc. The relevant devices or structures that can be triggered after the collision are all prior art and will not be repeated here.

[0031] In one embodiment of the present application, preferably, both ends of the grate hole 101 are provided with inclined surfaces 104 passing through the grate hole 101, and a conical surface 511 is provided on the cleaning cone 51, so that the conical surface 511 cooperates with the inclined surface 104 to enable the cleaning cone 51 to overcome the elastic force of the spring 53 and slide out of the grate hole 101.

[0032] In one embodiment of the present application, preferably, the grate hole 101 includes a large-aperture section 102 and a small-aperture section 103, the cleaning cone 51 includes a sliding section 512 and a cleaning section 513, the cleaning section 513 is embedded in the small-aperture section 103, the sliding section 512 is embedded in the large-aperture section 102 and abuts against the step 105 between the large-aperture section 102 and the small-aperture section 103; if the grinding body wears out one side of the small-aperture section 103 of the grate plate 1, the step 105 no longer exists. At this time, the sliding section 512 is pushed by the elastic force of the spring 53 to be embedded within the range of the original small-aperture well section 103, so the trigger member 52 will also be driven to abut against the swing plate 4, thereby abutting against the trigger member 52 and causing the trigger member 52 to send a relevant signal to remind the grate plate 1 that it has been worn to a certain extent.

[0033] In one embodiment of the present application, preferably, two steps 105 are provided between the large aperture section 102 and the small aperture section 103, and the areas of the step surfaces of the two steps 105 are equal, so that the resistance force between the sliding section 512 and the step 105 when sliding in the large aperture section 102 can be relatively balanced, thereby preventing the cleaning cone 51 from radially tilting; of course, it is understandable that there may be only one step 105 between the large aperture section 102 and the small aperture section 103, that is, the side surfaces of the large aperture section 102 and the small aperture section 103 in the circumferential direction overlap.

[0034] In one embodiment of the present application, preferably, a cleaning blade group 514 is provided inside the conical surface 511 of the cleaning section 513, and the cleaning blade group 514 is located inside the conical surface 511, and the height of the slides on both sides is higher than the height of the cleaning blade group, so that the cleaning cone 51 can slide out of the grate hole 101 smoothly, and the cleaning blade group 514 enables the cleaning cone 51 to clean the material stuck in the small hole well section 103 more efficiently.

[0035] In one embodiment of the present application, preferably, the swing plate 4 is symmetrically arranged along a plane perpendicular to the horizontal plane and coincident with the axis of the mounting plate 2, and the two ends of the grate plate 1 are equidistant from the two sides of the grate plate 1, even if the swing plate 4 is in a vertical state; in this way, when the grate plate 1 rotates with the drum of the ball mill device, the grate hole 101 closest to the center of the grate plate 1 will slide into the cleaning component 5 at the bottom, and the grate holes 101 farther from the center of the grate plate 1 will slide into different cleaning components 5 in turn; thereafter, the cleaning components 5 will also slide out of the grate holes 101 in turn; in this way, the process of single sliding in and single sliding out will not generate a large friction force to cause the counterweight block 3 to cause a large shake, thereby ensuring the stability of the cleaning component 5.

[0036] In one embodiment of the present application, preferably, the projection of the counterweight block 3 on the mounting plate 2 along the axial direction of the mounting plate 2 is within the projection range of the mounting plate 2, so that the counterweight block 3 will not block the slurry flowing out of the grate hole 101.

[0037] The working principle of the ball mill for producing ceramsite sand of the utility model is as follows: the grate plate 1 rotates together with the drum of the ball mill, and during the rotation, the grate holes 101 on the grate plate 1 will get stuck with materials, and the cleaning cone 51 of the cleaning component 5 can be embedded in the grate hole 101 under the push of the spring 53, and the cleaning cone 51 is kept nearly motionless (only slightly shaken) relative to the rotating grate plate 1 under the action of the counterweight block 3, so the cleaning cone 51 can slide in the grate hole 101 due to the rotation of the grate plate 1, so the cleaning cone 51 can effectively clean the materials stuck in the grate hole 101; during the rotation of the drum, the cleaning component 51 is always on the upper side of the drum axis due to the effect of the center of gravity, so the grinding body can be prevented from damaging the cleaning cone 51; the grate hole 101 includes a large-diameter section 102 and a small-diameter section 103, and the cleaning The cone 51 includes a sliding section 512 and a cleaning section 513. If the small-aperture section 103 is not completely worn out, the cleaning section 513 is embedded in the small-aperture section 103, the sliding section 512 is embedded in the large-aperture section 102 and abuts against the step 105 between the large-aperture section 102 and the small-aperture section 103, and the cleaning section 513 normally cleans the material stuck in the small-aperture section 103; if the small-aperture section 103 is completely worn out (also resulting in no step 105), the sliding section 512 invades into the range of the original small-aperture section 103. At this time, the spring 53 pushes the cleaning cone 51, the cleaning cone 51 drives the slide bar 54, the slide bar 54 drives the slider 55, the slider 55 drives the trigger member 52 and makes the trigger member 52 abut against the swing plate 4, so that the trigger member 52 can send a relevant signal to remind that the grate plate 1 has been worn to a certain extent.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A ball mill for producing ceramsite sand, characterized in that: The invention comprises a grate plate (1), a mounting plate (2), a counterweight (3), a swing plate (4) and a cleaning assembly (5); the grate plate (1) is provided with a plurality of grate holes (101) having two sections of different apertures along its circumferential direction; the surface of the grate holes (101) along the circumferential direction of the grate plate (1) is parallel to the axis of the grate plate (1); the grate plate (1) is fixed on the mounting plate (2); a coaxial circular shaft (21) is provided on the mounting plate (2); the end of the circular shaft (21) is connected to the counterweight (3) via a bearing; the counterweight (3) is arranged on one side of the large aperture section (102) of the grate hole (101); the top end of the counterweight (3) is A swing plate (4) is fixedly provided, and a cleaning assembly (5) is provided on the swing plate (4); the common center of gravity of the counterweight (3), the swing plate (4) and the cleaning assembly (5) is below the axis of the mounting plate (2); the cleaning assembly (5) comprises a cleaning cone (51) and a trigger member (52); the cleaning cone (51) can be embedded in the grate hole (101) and is pressed by a spring (53) to have a tendency to be embedded in the grate hole (101); when the depth of the cleaning cone (51) embedded in the grate hole (101) is greater than the depth of the grate hole (101), the trigger member (52) is triggered to detect the degree of wear of the grate hole (101).

2. The ball mill for producing ceramsite sand according to claim 1, characterized in that: The cleaning assembly (5) further comprises a slide bar (54), a slider (55) and a housing (56). The slide bar (54) is fixedly connected to the slider (55). The slide bar (54) is inserted through the swing plate (4) and the housing (56). One end of the slide bar (54) is fixedly connected to the cleaning cone (51). The slider (55) can slide in the housing (56) along the axial direction of the mounting plate (2). The housing (56) is fixedly connected to the swing plate (4). A spring (53) is inserted through the slide bar (54) and is located between the slider (55) and the housing (56). The spring (53) pushes the slider (55) so that the cleaning cone (51) has a tendency to be embedded in the grate hole (101).

3. The ball mill for producing ceramsite sand according to claim 2, characterized in that: The housing (56) is disposed on a side of the swing plate (4) away from the grate plate (1), and the trigger member (52) is disposed in the slider (55) and extends from the outer surface of the slider (55) toward the swing plate (4); when the cleaning cone (51) is completely embedded in the grate hole (101), a gap exists between the slider (55) and the swing plate (4), and the gap is equal to the distance that the trigger member (52) extends outward.

4. The ball mill for producing ceramsite sand according to claim 3, characterized in that: Both ends of the grate hole (101) are provided with inclined surfaces (104) penetrating the grate hole (101), and the cleaning cone (51) is provided with a conical surface (511). The conical surface (511) cooperates with the inclined surface (104) to enable the cleaning cone (51) to overcome the elastic force of the spring (53) and slide out of the grate hole (101).

5. The ball mill for producing ceramsite sand according to claim 4, characterized in that: The grate holes (101) further include a small-aperture section (103); the cleaning cone (51) includes a sliding section (512) and a cleaning section (513); the cleaning section (513) is embedded in the small-aperture section (103); the sliding section (512) is embedded in the large-aperture section (102) and abuts against a step (105) between the large-aperture section (102) and the small-aperture section (103).

6. The ball mill for producing ceramsite sand according to claim 5, characterized in that: A cleaning blade assembly (514) is provided on the conical surface (511) of the cleaning section (513).

7. The ball mill for producing ceramsite sand according to claim 5, characterized in that: Two steps (105) are provided between the large aperture section (102) and the small aperture section (103), and the areas of the step surfaces of the two steps (105) are equal.

8. The ball mill for producing ceramsite sand according to claim 1, characterized in that: The swing plate (4) is symmetrically arranged along a plane perpendicular to a horizontal plane and coincident with the axis of the mounting plate (2), and the distances between the two ends of the grate hole (101) and the two sides of the grate plate (1) are equal.

9. The ball mill for producing ceramsite sand according to claim 1, characterized in that: The projection of the counterweight block (3) on the mounting plate (2) along the axial direction of the mounting plate (2) is within the projection range of the mounting plate (2).

10. The ball mill for producing ceramsite sand according to claim 1, characterized in that: It also includes a ball baffle plate, which is used to prevent the grinding body from damaging the counterweight block (3), the swing plate (4) and the cleaning assembly (5).

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