Mineral discharge port sand blocking device of small-sized ball mill for laboratory

Abstract

The utility model discloses a small-sized ball mill ore discharge port sand blocking device for a laboratory, which comprises a ball mill ore discharge barrel and a sand blocking barrel which are coaxially connected with each other through a first connecting rod; a screen mechanism is detachably arranged at the end, away from the ball mill ore discharging barrel, of the sand blocking barrel. The screen mesh mechanism comprises a screen mesh unit and a hose clamp, the screen mesh unit comprises a screen mesh frame and a screen mesh arranged in the screen mesh frame, and the screen mesh frame is connected with the sand blocking barrel through the hose clamp; a first mounting groove is formed in the outer wall of the screen frame in the circumferential direction; a second mounting groove is formed in the outer wall of the lower end of the sand blocking cylinder in the circumferential direction; a first lug boss capable of being matched with the first mounting groove and a second lug boss capable of being matched with the second mounting groove are respectively arranged on the inner wall of the hose clamp body along the circumferential direction; the detachable screen mechanism can be effectively fixed on the sand blocking cylinder body, so that the problems of blockage and abrasion of the rotating shaft caused by the fact that coarse particles enter sorting equipment are effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball mills, and in particular relates to a sand retaining device for a discharge port of a small ball mill used in a laboratory. Background Art

[0002] During mineral processing experiments, grinding is often performed before sorting to achieve the separation of individual minerals. However, some coarse particles cannot be finely ground in small ball mills. Directly feeding unground product into the sorting process can cause the sorting equipment's rotating shaft to jam and wear, increasing equipment failure rates, shortening equipment life, and compromising test efficiency. Therefore, desanding before sorting is essential. To prevent coarse particles from entering the sorting process, during actual experiments, one person typically operates the ball mill to discharge the ground product while another uses a standard test sieve to remove coarse particles from the slurry. However, existing small laboratory ball mills suffer from the following drawbacks: The lack of a convenient and practical desanding device complicates the process, reduces efficiency, and easily damages the mill's rotating components; slurry splashes easily, exposing operators to the risk of skin corrosion from direct contact with the slurry; the coarse particle screening process requires large quantities of clean water to rinse the standard sieve, increasing manual labor; and the high water consumption can lead to a mismatch between the slurry volume and the processing capacity of the sorting equipment. Urgent improvement is needed. Utility Model Content

[0003] Based on the above defects of the prior art, the first purpose of the present utility model is to provide a sand retaining device for the discharge port of a small ball mill for laboratory use, so as to solve the technical problems of inconvenient operation and low work efficiency caused by the lack of a practical sand removal device in the prior art of small ball mills for laboratory use.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A small-sized ball mill discharge port sand retaining device for laboratory use comprises a ball mill discharge cylinder and a sand retaining cylinder coaxially connected, wherein the ball mill discharge cylinder and the sand retaining cylinder are connected via a first connecting rod;

[0006] The end of the sand retaining cylinder away from the ball mill ore discharge cylinder is detachably provided with a screen mechanism.

[0007] The utility model also has the following technical features:

[0008] Specifically, the screen mechanism includes a screen unit and a throat clamp. The screen unit includes a screen frame and a screen arranged in the screen frame. The screen frame is connected to the sand retaining cylinder through the throat clamp.

[0009] Furthermore, the throat clamp includes a throat clamp body and a bolt, a first threaded hole is opened at one end of the throat clamp body, and a second threaded hole is opened at the other end of the throat clamp body, and the first threaded hole and the second threaded hole can be coaxially connected; the bolt can pass through the first threaded hole and the second threaded hole.

[0010] Furthermore, a first mounting groove is opened on the outer wall of the screen frame along the circumferential direction; a second mounting groove is opened on the outer wall of the lower end of the sand retaining cylinder along the circumferential direction; a first protrusion that can cooperate with the first mounting groove and a second protrusion that can cooperate with the second mounting groove are respectively provided on the inner wall of the throat clamp body along the circumferential direction.

[0011] Furthermore, a drainage outlet is provided at the bottom of the ball mill discharge cylinder, and a baffle is rotatably provided in the drainage outlet.

[0012] Furthermore, a first mounting hole and a second mounting hole are respectively opened at relative positions on the side walls of the ball mill discharge cylinder, and a third mounting hole and a fourth mounting hole are respectively opened at relative positions on the side walls of the sand retaining cylinder; the first connecting rod passes through the first mounting hole, the second mounting hole, the third mounting hole and the fourth mounting hole.

[0013] Furthermore, the side wall of the baffle is connected to a second connecting rod, which passes through a through hole on the ball mill discharge cylinder and a fifth mounting port on the sand retaining cylinder, and is connected to a knob outside the sand retaining cylinder.

[0014] Furthermore, the sieve is provided with a plurality of sieve holes.

[0015] Compared with the prior art, the present invention has the following technical effects:

[0016] (1) The utility model is provided with a detachable screen mechanism, and the screen mechanism can be effectively fixed on the sand retaining cylinder with the help of a hose clamp. With the help of the screen mechanism, it can effectively prevent the shaft from getting stuck and wearing due to coarse particles entering the sorting equipment, reduce the equipment failure rate, improve the test efficiency, and extend the service life of the equipment. The utility model can realize automatic sand removal, avoid mechanical damage to the rotating parts of the ball mill during manual sand removal, and eliminate safety hazards.

[0017] (2) The utility model realizes the adjustment of the opening of the drain outlet through a movable baffle. With the help of the knob, the second connecting rod and the baffle arranged in the drain outlet, the opening of the drain outlet can be adjusted according to the actual situation, thereby increasing or decreasing the flushing water volume, avoiding the risk of slurry splashing to the operator, and effectively improving work efficiency.

[0018] (3) The utility model has a simple overall structure, is securely installed, and is easy to use, and has the value of being promoted and used.

[0019] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of Example 1;

[0022] Figure 2 This is an exploded view of Example 1.

[0023] Description of Reference Numerals

[0024] 1-ball mill discharge cylinder, 2-sand retaining cylinder, 3-first connecting rod, 4-screen mechanism, 5-baffle, 6-second connecting rod, 7-knob; 11-drain outlet, 12-first mounting hole, 13-second mounting hole; 21-third mounting hole, 22-fourth mounting hole; 41-screen unit, 42-throat clamp; 411-screen frame, 412-screen; 421-throat clamp body, 422-bolt; 4121-screen hole; 4211-first threaded hole, 4212-second threaded hole. DETAILED DESCRIPTION

[0025] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent modifications made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0026] The terms "upper", "lower", "front", "rear", etc. used in the present invention to indicate directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. "Inside" and "outside" refer to the inside and outside of the contours of the corresponding components, and the above terms cannot be understood as limitations on the present invention.

[0027] In this utility model, unless otherwise specified, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0028] Unless otherwise specified, all components in the present invention are components known in the prior art.

[0029] The present invention is described in further detail below with reference to the accompanying drawings:

[0030] Example 1

[0031] Following the above technical solution, Figures 1 to 2 As shown, this embodiment provides a sand retaining device for the discharge port of a small ball mill for laboratory use, comprising a ball mill discharge cylinder 1 and a sand retaining cylinder 2 coaxially connected from top to bottom, the bottom end of the ball mill discharge cylinder 1 extends into the sand retaining cylinder 2, and the ball mill discharge cylinder 1 and the sand retaining cylinder 2 are connected by a first connecting rod 3; a screen mechanism 4 is detachably provided at one end of the sand retaining cylinder 2 away from the ball mill discharge cylinder 1.

[0032] As a preferred embodiment of this embodiment, screen mechanism 4 includes a screen unit 41 and a throat clamp 42. The throat clamp 42 is used to connect the screen unit 41 to the sand retaining cylinder 2. The screen unit 41 includes a screen frame 411 and a screen 412 disposed within the screen frame 411. The screen frame 411 is connected to the sand retaining cylinder 2 via the throat clamp 42. The screen 412 is provided with filter apertures 4211. The screen 412 is used to filter the slurry. Coarse particles larger than the filter apertures 4211 are retained within the sand retaining cylinder 2, while fine particles smaller than the filter apertures are allowed to pass through the apertures 4211.

[0033] As a preferred solution of this embodiment, the throat hoop 42 includes a throat hoop body 421 and a bolt 422. A first threaded hole 4211 is provided at one end of the throat hoop body 421, and a second threaded hole 4212 is provided at the other end of the throat hoop body 421. The first threaded hole 4211 and the second threaded hole 4212 can be coaxially connected; the bolt 422 can pass through the first threaded hole 4211 and the second threaded hole 4212, and the bolt 422 can be combined with the nut to achieve the tightening of the throat hoop body 421.

[0034] As a preferred solution of this embodiment, a first annular mounting groove is provided on the outer wall of the screen frame 411 along the circumferential direction; a second annular mounting groove is provided on the outer wall of the sand retaining cylinder 2 along the circumferential direction; and a first annular protrusion that can cooperate with the first mounting groove and a second annular protrusion that can cooperate with the second mounting groove are respectively provided on the inner wall of the throat clamp body 421 along the circumferential direction.

[0035] As a preferred embodiment of the present invention, a drain outlet 11 is provided at the bottom of the ball mill discharge cylinder 1, and a baffle 5 is provided in the drain outlet 11.

[0036] As a preferred solution of this embodiment, a first mounting hole 12 and a second mounting hole 13 are respectively provided at relative positions on the side walls of the ball mill discharge cylinder 1, that is, the first mounting hole 12 and the second mounting hole 13 are mirror-symmetrically arranged; a third mounting hole 21 and a fourth mounting hole 22 are respectively provided at relative positions on the side walls of the sand retaining cylinder 2, that is, the third mounting hole 21 and the fourth mounting hole 22 are mirror-symmetrically arranged; the first connecting rod 3 passes through the first mounting hole 12, the second mounting hole 13, the third mounting hole 21 and the fourth mounting hole 22. In this embodiment, an external thread is provided on the outer wall of the tail end of the first connecting rod 3, which is fastened by a nut with a corresponding internal thread.

[0037] As a preferred solution of this embodiment, a second connecting rod 6 is connected to the side wall of the baffle 5. The second connecting rod 6 passes through a through hole provided in the ball mill discharge cylinder 1 and a fifth mounting opening provided in the sand retaining cylinder 2, and is connected to a knob 7 provided on the outside of the sand retaining cylinder 2. Rotating the knob 7 rotates the baffle 5, thereby adjusting the opening of the drain outlet.

[0038] During installation, the utility model is as follows: the head end of the ball mill discharge cylinder 1 is connected to the ball mill discharge port, the bottom end is placed in the sand retaining cylinder 2, the ball mill discharge cylinder 1 and the sand retaining cylinder 2 are connected by the first connecting rod 3, the drying net unit is fixed to the sand retaining cylinder 2 by the throat clamp 42, and the throat clamp body 421 is fastened with the help of bolts 422 and nuts matched therewith.

[0039] During use, the knob 7 is rotated to rotate the second connecting rod 6, which in turn rotates the baffle 5, causing the baffle 5 to tilt at a certain angle and then stop rotating. The small ball mill is then tilted to a suitable angle to start unloading the ore. The ball mill is started, and the slurry flows into the sand retaining cylinder 2 through the drain port 11 on the wall 1 of the ball mill discharge cylinder, and is filtered through the screen 412. Coarse particles with a particle size larger than the aperture of the screen 4121 are retained in the sand retaining cylinder 2, and coarse particles with a particle size smaller than the aperture of the screen 4121 pass through the screen 412. During operation, the baffle 5 can be adjusted by rotating the knob 7 to control the rate of slurry outflow, to prevent slurry splashing and causing direct contact with the slurry to corrode the skin. After use, clean the sand retaining cylinder 2 and the screen 412, and remove the sand retaining cylinder 2 at the same time, discharge the coarse sand and gravel in the sand retaining cylinder 2, and rotate the knob 7 to close the drain port 11.

[0040] The above content is only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

[0041] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0042] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0043] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A small ball mill discharge port sand retaining device for laboratory use, characterized in that: It comprises a coaxially connected ball mill ore discharge cylinder (1) and a sand retaining cylinder (2), wherein the ball mill ore discharge cylinder (1) and the sand retaining cylinder (2) are connected via a first connecting rod (3); The end of the sand retaining cylinder (2) away from the ball mill ore discharge cylinder (1) is detachably provided with a screen mechanism (4); The screen mechanism (4) comprises a screen unit (41) and a throat hoop (42); the screen unit (41) comprises a screen frame (411) and a screen (412) arranged in the screen frame (411); the screen frame (411) is connected to the sand retaining cylinder (2) via the throat hoop (42); A drainage port (11) is provided at the bottom of the ball mill discharge cylinder (1), and a baffle (5) is rotatably provided in the drainage port (11).

2. The sand retaining device for the discharge port of a small ball mill for laboratory use according to claim 1, characterized in that: The throat hoop (42) includes a throat hoop body (421) and a bolt (422), one end of the throat hoop body (421) is provided with a first threaded hole (4211), and the other end of the throat hoop body (421) is provided with a second threaded hole (4212), the first threaded hole (4211) and the second threaded hole (4212) can be coaxially connected; the bolt (422) can pass through the first threaded hole (4211) and the second threaded hole (4212).

3. The sand retaining device for the discharge port of a small ball mill for laboratory use according to claim 2, characterized in that: A first mounting groove is provided on the outer wall of the screen frame (411) along the circumferential direction; a second mounting groove is provided on the outer wall of the lower end of the sand retaining cylinder (2) along the circumferential direction; and a first protrusion capable of cooperating with the first mounting groove and a second protrusion capable of cooperating with the second mounting groove are respectively provided on the inner wall of the throat clamp body (421) along the circumferential direction.

4. The sand retaining device for the discharge port of a small ball mill for laboratory use according to claim 1, characterized in that: A first mounting hole (12) and a second mounting hole (13) are respectively provided at opposite positions on the side walls of the ball mill discharge cylinder (1), and a third mounting hole (21) and a fourth mounting hole (22) are respectively provided at opposite positions on the side walls of the sand retaining cylinder (2); the first connecting rod (3) passes through the first mounting hole (12), the second mounting hole (13), the third mounting hole (21) and the fourth mounting hole (22).

5. The sand retaining device for the discharge port of a small ball mill for laboratory use according to claim 1, characterized in that: The side wall of the baffle (5) is connected to a second connecting rod (6), which passes through a through hole provided on the ball mill discharge cylinder (1) and a fifth mounting opening provided on the sand retaining cylinder (2), and is connected to a knob (7) provided outside the sand retaining cylinder (2).

6. The sand retaining device for the discharge port of a small ball mill for laboratory use according to claim 1, characterized in that: The screen (412) is provided with a plurality of screen holes (4121).

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