Sand making grading device

Abstract

The utility model relates to the technical field of high-purity quartz sand production, and discloses a sand making grading device which comprises a bottom frame and a ball mill roller, a plurality of circles of grinding head pieces are arranged in the ball mill roller, every two adjacent circles of grinding head pieces are distributed in a staggered mode, each grinding head piece comprises a lining plate body, and the lining plate bodies are arranged on the bottom frame. A stepped protruding part is integrally formed on the outer wall of the lining plate body; in the grinding process, the grinding head part close to the thicker end can provide larger pressure and cutting force and can be matched with a grinding medium to carry out preliminary rough machining, the pressure of the thinner end is relatively small, fine grinding can be carried out, the grinding medium can be regularly lifted and thrown under the action of the stepped protruding part, and the grinding efficiency is greatly improved. And the grinding medium in the central area of the cylinder body can be driven, so that the materials can be uniformly ground in the whole cylinder body.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -purity quartz sand production technical field especially refers to a kind of sand making grading device. BACKGROUND

[0002] High-purity quartz sand refers to the quartz sand with high silicon dioxide content, which has a series of excellent properties and is widely used in many important fields. The sand making grading process of fine quartz sand after crushing includes ball milling-screening-magnetic separation. Specifically, fine quartz sand produced after crushing is lifted by airtight belt conveying and ball milling in a ball mill, and then enters the screening machine through cyclone dust collection to grade the quartz sand. According to different customer requirements, the larger particles are returned to the ball milling process for further ball milling. The screened products are divided into particles smaller than 50 mesh, 50-100 mesh, 100-150 mesh, etc. The quartz sand after screening is removed from the metal iron by the magnetic separation device of the all-in-one machine.

[0003] Among them, the ball mill is an important equipment for further grinding of fine quartz sand after crushing. Its working principle is that the material is continuously turned during the rotation of the cylinder, so that it can be uniformly affected by the grinding medium, thereby gradually reducing the particle size to the required crushing degree. However, in actual use, the distribution of material and grinding medium inside the ball mill is affected by the rotation of the cylinder. The material and grinding medium near the cylinder wall move more violently, while the material in the center area of the cylinder may move insufficiently, thereby affecting the uniformity of the overall ball milling. SUMMARY

[0004] The utility model provides a kind of sand making grading device to solve the problem of lack of uniformity of ball milling in existing sand making device.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of sand making grading device, comprising: underframe and ball mill roller, the outer wall of the ball mill roller one end is installed with gear ring, and the top end of bearing seat near gear ring side is equipped with wiping member;The inside of the ball mill roller is equipped with multiple circles of grinding head piece, adjacent two circle grinding head piece staggered distribution, and each grinding head piece includes lining plate body, and the outer wall of the lining plate body is integrally formed as stepped protruding portion.

[0006] Preferably, the grinding head piece gradually transitions from a thicker state at one end to a thinner state at the other end along its length direction.

[0007] Preferably, the adjacent two steps of the stepped protruding portion are transitioned by a slope.

[0008] Preferably, the thicker ends of the two adjacent grinding head pieces are arranged opposite to each other.

[0009] Preferably, the wiping member comprises a convex strip fixed to the top end of the bearing seat, an electric telescopic rod is installed through the convex strip, an arc-shaped wiping strip is installed at the output end of the electric telescopic rod, and a plurality of convex tooth portions are fixed equidistantly on the wiping surface of the wiping strip.

[0010] Preferably, the convex tooth portions can be fitted into the gap position between two adjacent convex teeth of the tooth ring, and a connecting rod is further connected between the two ends of the wiping strip and the ends of the electric telescopic rod.

[0011] In the above technical solution, the technical effects and advantages of the present application are provided.

[0012] (1) By setting the grinding head piece with stepped convex portion, and the thickness of the grinding head piece is gradually changed, so that in the grinding process, the grinding head part near the thicker end can provide greater pressure and cutting force, and cooperate with the grinding medium to perform preliminary rough machining, while the pressure of the thinner end is relatively small, and fine grinding can be performed, and the grinding medium is regularly lifted and thrown under the action of the stepped convex portion, and the grinding medium in the center area of the cylinder can also be driven, so that the material can be more uniformly subjected to the grinding action in the entire cylinder.

[0013] Secondly, the grinding head piece will be subjected to the reaction force from the material during work, and the thickness gradually changing design can make the stress more uniformly distributed on the grinding head piece, reduce the degree of stress concentration, and prolong the service life of the grinding head piece.

[0014] (2) By matching the wiping member, the wiping strip can be pushed close to the tooth ring by the electric telescopic rod at regular intervals, so that the convex tooth portions pass through the gap between the convex teeth, and the dust, oil stains and the like adhered to the surface of the tooth ring can be removed, the friction coefficient when the tooth ring meshes with the pinion can be reduced, and the tooth surface wear can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 It is a schematic diagram of the overall structure of the present application Figure 1 It is a schematic diagram of the overall structure of the present application

[0018] Figure 3 It is a schematic diagram of the overall structure of the present application It is a schematic diagram of the overall structure of the present application

[0019] Figure 4 Fig. 2 is a schematic view of a cross-sectional structure of the roller;

[0020] Figure 5 Fig. 3 is a schematic view of a structure of the grinding head piece;

[0021] In the figure: 1, base frame; 2, bearing seat; 3, ball mill roller; 4, tooth ring; 5, convex strip; 6, electric telescopic rod; 7, wiping strip; 8, connecting rod; 9, convex tooth part; 10, grinding head piece; 101, lining plate body; 102, stepped convex part. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0023] The present application provides a kind of sand making classification device as shown in Figures 1-5 The present application provides a kind of sand making classification device as shown in Figure 1, including base frame 1, the upper end surface of base frame 1 both ends are equipped with bearing seat 2, two bearing seats 2 are equipped with ball mill roller 3 between, bearing seat 2 is used to support the rotation of ball mill roller 3, withstands the weight of ball mill roller 3, grinding medium and material, the outer wall of ball mill roller 3 one end is equipped with tooth ring 4, the power source of ball mill is usually motor (not shown), the power of motor is reduced and torque is adjusted after passing through speed reducer and other equipment, needs to be transmitted to ball mill roller 3, tooth ring 4 is as the key component of transmission link, is engaged with pinion (not shown), the top end of bearing seat 2 close to tooth ring 4 side is equipped with wiping piece, wiping piece is used to wipe tooth ring 4, the inside of ball mill roller 3 is equipped with multiple grinding head pieces 10, two adjacent grinding head pieces 10 are staggered distribution, and each grinding head piece 10 includes lining plate body 101, the outer wall of lining plate body 101 is integrally formed as stepped convex part 102, the adjacent two steps between stepped convex part 102 are inclined surface transition.

[0024] The grinding head piece 10 gradually transitions from a thicker state at one end to a thinner state at the other end along the length direction thereof, the thicker ends of two adjacent grinding head pieces 10 of the adjacent ring are arranged oppositely, the grinding head part near the thicker end can provide greater pressure and cutting force during the grinding process, cooperating with the grinding medium to preliminarily coarsely process the fine quartz sand, and the pressure of the thinner end is relatively small, so that fine grinding can be carried out, and the grinding medium is regularly lifted and thrown under the action of the stepped protrusion 102, and the grinding medium in the central area of the ball mill drum 3 can also be driven, so that the material can be more uniformly subjected to the grinding action in the entire ball mill drum 3, secondly, the grinding head piece 10 will be subjected to the reaction force from the material during work, if the thickness of the grinding head piece 10 is uniform, stress concentration may occur at the edge in contact with the material, causing the grinding head piece 10 to be easily damaged, and the gradually changing thickness design can make the stress more uniformly distributed on the grinding head piece 10, reduce the degree of stress concentration, and prolong the service life of the grinding head piece 10.

[0025] participate Figure 1 As shown, the wiping member includes a convex strip 5 fixed to the top end of the bearing seat 2, an electric telescopic rod 6 is installed through the convex strip 5, an arc-shaped wiping strip 7 is installed at the output end of the electric telescopic rod 6, and a plurality of convex tooth portions 9 are equidistantly fixed on the wiping surface of the wiping strip 7.

[0026] Among them, the convex tooth portion 9 can be fitted in the gap position between the adjacent two convex teeth of the tooth ring 4, and the connecting rod 8 is further connected between the two ends of the wiping strip 7 and the end of the electric telescopic rod 6.

[0027] Through the above, the electric telescopic rod 6 can be started regularly, the wiping strip 7 is pushed to be close to the tooth ring 4, and the convex tooth portion 9 passes through the gap between the convex teeth, so that the tooth ring 4 can be wiped by the wiping strip 7, and the dust, oil stains and the like attached to the surface of the tooth ring 4 can be removed, so that the friction coefficient when the tooth ring 4 meshes with the pinion can be reduced, and the tooth surface wear can be reduced.

[0028] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sand making and grading device, comprising a base frame (1) and a ball mill drum (3), characterized in that: A gear ring (4) is installed at one end of the outer wall of the ball mill drum (3), and a wiper is provided at the top of the bearing seat (2) near the gear ring (4); The interior of the ball mill drum (3) is provided with a plurality of circles of grinding head parts (10), and the grinding head parts (10) of two adjacent circles are staggered and distributed, and each of the grinding head parts (10) includes a lining body (101), and the outer wall of the lining body (101) is integrally formed into a stepped protrusion (102).

2. A sand making and grading device according to claim 1, characterized in that: The grinding head member (10) gradually transitions from a thicker state at one end to a thinner state at the other end along its length direction.

3. A sand making and grading device according to claim 1, characterized in that: There is an inclined transition between two adjacent steps of the stepped protrusion (102).

4. A sand making and grading device according to claim 2, characterized in that: The thicker ends of the two adjacent grinding head parts (10) of the adjacent circles are arranged back to back.

5. The sand making and grading device according to claim 1, characterized in that: The wiping member comprises a convex strip (5) fixed to the top end of the bearing seat (2), an electric telescopic rod (6) is installed through the convex strip (5), an arc-shaped wiping strip (7) is installed at the output end of the electric telescopic rod (6), and a plurality of convex teeth (9) are fixed at equal intervals on the wiping surface of the wiping strip (7).

6. A sand making and grading device according to claim 5, characterized in that: The convex tooth portion (9) can fit into the gap between two adjacent convex teeth on the gear ring (4), and a connecting rod (8) is further connected between the two ends of the wiping strip (7) and the end of the electric telescopic rod (6).

Images