Ore feeding end sealing device of overflow type ball mill
By installing a combination structure of a sealing short sleeve, sealing ring, sealing gland, and packing at the feed end of the overflow ball mill, the problem of slurry leakage was solved, and the safety and ease of maintenance of the equipment were improved.
Patent Information
- Application Number
- CN202520046076.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Overflow ball mill slurry leakage at the feed end poses safety hazards and is difficult to clean up, and existing technologies are unable to effectively solve the problem.
It adopts a combination structure of sealing short sleeve, sealing ring, sealing gland and packing, and seals according to the shaft seal principle of slurry pump to prevent slurry leakage.
It effectively prevents the slurry from overflowing at the bend of the feed end and the gap of the drum feeder, improving the safety and ease of maintenance of the equipment.
Smart Images
Figure CN223915533U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of steel ore dressing equipment relates to a kind of overflow type ball mill ore feeding end sealing device. BACKGROUND
[0002] Overflow type ball mill is the most important equipment of the flotation three-stage ball mill process of a certain ore dressing plant, and it has a high operation frequency. The feed end of the ball mill sends the ore slurry to the drum feeder through the cyclone dust box and the ore feeding elbow. The ore slurry is then rotated into the ball mill cylinder by the drum feeder. The spiral plate of the drum feeder is prone to wear and tear during operation, which can easily cause the ore slurry to overflow from the drum feeder and the ore feeding elbow and flow to the ground. This poses a safety hazard of slipping and falling, and the cleaning process is difficult and technically flawed. SUMMARY
[0003] The utility model aims at the problems existing in the prior art, and provides an overflow type ball mill ore feeding end sealing device to solve the problem of ore slurry leakage at the ore feeding end of the overflow type ball mill.
[0004] To this end, the utility model adopts the following technical solutions:
[0005] An overflow type ball mill ore feeding end sealing device includes a sealing sleeve, a sealing ring is fitted on the outer wall of the sealing sleeve, and a gap is provided between the two. The gap is filled with packing. A sealing gland is clamped on the side of the sealing ring. The sealing gland has two L-shaped recesses at its two ends, which are symmetrically arranged. The L-shaped recesses include a horizontal part and a vertical part. A first insertion hole is provided in the middle of the vertical part.
[0006] Further, the sealing ring has two U-shaped grooves at its two ends, which are symmetrically arranged. The U-shaped grooves include two vertical edges that are symmetrically arranged and have different lengths. The longer vertical edge has a second insertion hole.
[0007] Further, the second insertion hole has the same diameter as the first insertion hole, and the two insertion holes are arranged side by side with their center points on the same straight line.
[0008] Further, the bending angles of the sealing ring and the sealing gland are the same, and the bending parts of the two are tightly fitted. The bending part of the sealing ring is located above the bending part of the sealing gland.
[0009] Further, the top of the longer vertical edge of the sealing ring is at the same height as the top of the vertical part of the sealing gland.
[0010] Further, the packing is in contact with the sealing sleeve, the sealing ring, and the sealing gland.
[0011] Further, the horizontal part of the sealing gland is located between the sealing sleeve and the sealing ring.
[0012] The utility model discloses beneficial effect lies in:
[0013] The utility model discloses in the use process,
[0014] The utility model discloses according to the principle of slag pump shaft seal, through setting up seal short sleeve, sealing ring, sealing gland and filler, the sealing of overflow type ball mill feeding end is carried out, and the phenomenon of overflow of ore pulp at the gap between the elbow of feeding end and drum feeder is caused by the wear of spiral plate inside drum feeder is prevented. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the structural schematic diagram of the utility model;
[0016] Figure 2 It is the structural schematic diagram of the sealing short sleeve of the utility model;
[0017] Figure 3 It is the structural schematic diagram of the sealing ring of the utility model;
[0018] Figure 4 It is the structural schematic diagram of the sealing gland of the utility model;
[0019] Figure 5 It is the use state schematic diagram of the utility model.
[0020] In the drawing, 1-seal short sleeve, 2-sealing ring, 2a-U groove, 2b-second jack, 3-sealing gland, 3a-crossing part, 3b-vertical part, 3c-first jack, 4-filler, 5-mining elbow, 6-drum feeder. DETAILED DESCRIPTION
[0021] The technical scheme of the utility model will be described in connection with the drawings and implementation method.
[0022] As Figure 1 And 2 The utility model discloses a kind of overflow type ball mill mining end sealing devices, including seal short sleeve 1, seal short sleeve 1 outer wall is equipped with sealing ring 2, and gap is equipped between the two, and filler 4 is filled in the gap, and the side of sealing ring 2 is equipped with sealing gland 3;Specifically, the bending angle of sealing ring 2 and sealing gland 3 is same, the bending place of the two is tightly adhered, and the bending place of sealing ring 2 is located above the bending place of sealing gland 3;Filler 4 is contacted with seal short sleeve 1, sealing ring 2 and sealing gland 3 respectively.
[0023] As Figure 3 Indicated, sealing ring 2 both ends are equipped with the U-shaped groove 2a of symmetric setting, the U-shaped groove 2a includes two vertical edges of symmetric setting, and the length of two is not same, and the longer vertical edge is equipped with second jack 2b.
[0024] AsFigure 4 As shown, the sealing cap 3 has symmetrically arranged L-shaped recesses at both ends, including a horizontal part 3a and a vertical part 3b. The vertical part 3b has a first insertion hole 3c in the middle. Specifically, the horizontal part 3a in the sealing cap 3 is located between the sealing sleeve 1 and the sealing ring 2. The top of the longer vertical side of the sealing ring 2 is at the same height as the top of the vertical part 3b in the sealing cap 3.
[0025] The second socket 2b has the same diameter as the first socket 3c, and the two are arranged side by side with their center points on the same straight line.
[0026] The working principle of this utility model is as follows:
[0027] There is a 19mm gap between the sealing short sleeve 1 (stationary ring) and the sealing ring 2 (moving ring) to fill the packing 4. The sealing ring 2 moves together with the ball mill drum feeder. The sealing short sleeve 1 is installed on the feed elbow 5. When the ball mill is running, the packing 4 is fully pressed into the gap between the sealing ring 2 and the sealing short sleeve 1 by adjusting the fastening bolts on the sealing cover 3, so as to play a sealing role.
[0028] like Figure 5 As shown, the installation process of this utility model is as follows:
[0029] First, install the sealing short sleeve 1 on the feed elbow 5. During installation, both ends of the sealing short sleeve 1 must be fully welded to the feed elbow 5 to prevent the slurry from flowing out along the gap between the stationary ring and the elbow. Second, weld the sealing ring 2 onto the drum feeder 6. During welding, it must be ensured that it is concentric with the feed hole of the drum feeder 6. Put the sealing cover 3 on the feed elbow 5 in advance, then adjust the gap between the sealing ring 2 and the sealing short sleeve 1 to be uniform. Finally, fill the filler 4 and tighten the cover bolts on the sealing cover 3.
Claims
1. An overflow-type ball mill feed end sealing device, characterized by, The utility model relates to a sealing sleeve, which comprises a sealing sleeve (1) with a sealing ring (2) on the outer wall of the sealing sleeve (1), a gap between the sealing sleeve (1) and the sealing ring (2), and a filler (4) in the gap.
2. An overfall type ball mill feed end sealing device according to claim 1, characterized in that, The sealing ring (2) is provided with symmetrically arranged U-shaped grooves (2a) at both ends, and the U-shaped grooves (2a) comprise two vertical edges arranged symmetrically, and the lengths of the two vertical edges are different, wherein the longer vertical edge is provided with a second insertion hole (2b).
3. An overfall type ball mill feed end sealing device according to claim 2, characterized in that, The second insertion hole (2b) and the first insertion hole (3c) have the same hole diameter and are arranged side by side, and the center points of the two are located on the same straight line.
4. An overfall type ball mill feed end sealing device according to claim 1, characterized in that, The bending angles of the sealing ring (2) and the sealing cover (3) are the same, the bending parts of the two are in close contact, and the bending part of the sealing ring (2) is located above the bending part of the sealing cover (3).
5. An overfall type ball mill feed end sealing device according to claim 2, characterized in that, The top of the longer vertical edge of the sealing ring (2) is located at the same height as the top of the vertical part (3b) of the sealing cover (3).
6. An overfall type ball mill feed end sealing device according to claim 1, characterized in that, The filler (4) is in contact with the sealing sleeve (1), the sealing ring (2) and the sealing cover (3) respectively.
7. An overfall type ball mill feed end sealing device according to claim 1, characterized in that, The horizontal part (3a) of the sealing cover (3) is located between the sealing sleeve (1) and the sealing ring (2).