Leakage-proof structure of ore feeder of dissolution mill
By setting up a liquid barrier plate and a barrier plate at the inlet and inlet port of the dissolution grinder feeder, a maze-type sealing structure is formed, which solves the problem of leakage between the feeder feeder feeder feeder feeder and the inlet port, and achieves on-site cleaning and safe and stable operation of the equipment.
Patent Information
- Application Number
- CN202421074604.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The dissolution grinding ore feeder is prone to leakage in the gap between the feed pipe and the feed port, resulting in slurry leakage, causing uncleanness on site, employee safety hazards, and equipment corrosion, affecting production.
A leak-proof structure is designed, including setting a liquid barrier plate at the liquid inlet, and setting a material barrier ring and barrier plate at the gap between the feed port and the feed pipe to form a maze-shaped sealing structure to prevent liquid from flowing into the gap.
It effectively avoids the leakage of the mine feeder, keeps the site clean, reduces the risk of employees' slips and alkali burns, avoids corrosion of the equipment, and ensures the safe and stable operation of the equipment.
Smart Images
Figure CN222555615U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dissolution mill ore feeders, in particular to a leakage prevention structure of a dissolution mill ore feeder. Background Art
[0002] The dissolution mill feeder is used in the dissolution reaction process of clinker in the production of sintered alumina. It can feed larger clinker blocks, keep the material level in the mill at a higher level, and reduce the labor intensity of workers.
[0003] The feed end of the feeder has a feed port, and the feed pipe is inserted into the feed port for feeding into the feeder. There is a gap between the feed pipe and the feed port. When the liquid level in the feeder exceeds the height of the horizontal feed pipe, it is easy to leak from the gap, resulting in slurry on the ground and around the equipment. First, the slurry is easy to stutter and difficult to clean, and the workload of employees is large (cleaning after stuttering requires the use of electric picks, sledgehammers, crowbars, etc., and cannot be simply cleaned with brooms and shovels); second, the slurry contains alkali, and the ground is slippery after leakage. There is a risk of alkali burns and slips for employees to inspect. After slipping, employees have great emotional fluctuations, which leads to some unsafe behaviors; third, there is a cable bridge under the dissolution mill feeder. The alkaline slurry has different degrees of corrosion on the cable insulation layer, steel plate platform, and foundation, which poses a great hidden danger to the safe and stable operation of the equipment; fourth, it affects production. After leakage, production is reduced and adjusted, breaking the original solid-liquid ratio, causing fluctuations in production. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of the embodiments of the utility model is to provide a leakage-proof structure for a dissolution mill feeder to solve the problem of leakage of return material from the feeder.
[0005] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solutions:
[0006] A leakage prevention structure for a dissolution mill feeder, the feeder having a feed sealing plate and a partition, a feed bin formed between the partition and the feed sealing plate, the feed sealing plate having a feed port, a liquid inlet being provided on the partition, a feed pipe being inserted into the feed port; a feed ring being provided at the feed port of the feed sealing plate, the feed ring and the feed sealing plate forming an annular cavity, a baffle plate being provided on the outer wall of the feed pipe, the baffle plate being inserted into the annular cavity; a liquid baffle plate being provided in the feed bin, the liquid baffle plate being provided at the position of the liquid inlet.
[0007] Optionally, the cross-section of the feed ring is L-shaped, the connection between the feed ring and the feed sealing plate is located at the radial outer ring of the feed port, the baffle plate is an annular plate, and the outer edge of the baffle plate is inserted into the feed ring to form a labyrinth seal.
[0008] Optionally, the feed ring includes a first plate and a second plate, the first plate is an annular flat plate, the second plate is an annular cylindrical plate, one end of the second plate is connected to the outer edge of the first plate to form an L-shaped cross-section, and the second end of the second plate is connected to the feed sealing plate.
[0009] Optionally, the feed ring is arranged on the inner side of the feed sealing plate, and the baffle plate is also located on the inner side of the feed sealing plate, and the feed ring and the baffle plate form a labyrinth seal on the inner side of the feed sealing plate.
[0010] Optionally, a feed ring is also provided on the outside of the feed sealing plate, and the outer feed ring and the inner feed ring are symmetrically arranged along the feed sealing plate. Two baffle plates are provided on the feed pipe, and the two baffle plates are respectively located on the inner and outer sides of the feed sealing plate, forming a labyrinth seal on both the inner and outer sides of the feed sealing plate.
[0011] Optionally, a notch is provided at one end of the feed pipe inserted into the ore feeder, the notch is located on the inner side of the baffle plate, and the notch is provided on the upper side of the feed pipe in the vertical direction.
[0012] Optionally, the longitudinal section of the notch is rectangular, and the height of the notch along the vertical direction is greater than the radius of the feed pipe.
[0013] Optionally, the longitudinal section of the notch is triangular.
[0014] Optionally, the liquid baffle is located at the rear side of the liquid inlet in the rotation direction.
[0015] Optionally, the liquid baffle includes a transverse baffle and a longitudinal baffle, one side of the transverse baffle is connected to the partition, and the other side of the transverse baffle is connected to the feed sealing plate, the longitudinal baffle is located at one end of the transverse baffle close to the center and at the side of the transverse baffle facing away from the center, the axial length of the longitudinal baffle is shorter than the axial length of the transverse baffle, and the longitudinal baffle is connected to the feed sealing plate.
[0016] One or more technical solutions provided in the embodiments of the present utility model have at least the following technical effects or advantages:
[0017] The anti-leakage structure of the utility model, on the one hand, is provided with a liquid baffle plate at the liquid inlet to prevent or reduce the liquid from flowing to the gap between the feed port and the feed pipe; on the other hand, a material baffle ring and a material baffle plate are provided at the gap between the feed port and the feed pipe to form a labyrinth-type sealing structure. The problem of return material leakage of the feeder is avoided by the liquid baffle plate, the material baffle ring and the material baffle plate, thereby ensuring the cleanliness of the site, preventing employees from slipping, and avoiding corrosion to other equipment, thereby ensuring the safe and stable operation of the equipment.
[0018] Additional advantages of the present invention will be given in the following description, and some will become apparent from the following description or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0020] Figure 1 This is a diagram showing the coordination of the ore feeder and the feed pipe provided in the embodiment of the utility model;
[0021] Figure 2 This is a schematic diagram of a feeder guide bin provided by an embodiment of the utility model;
[0022] Figure 3 It is a schematic cross-sectional view of a partition plate of an ore feeder provided in an embodiment of the utility model;
[0023] Figure 4 This is a schematic diagram of a feed bin of a ore feeder provided by an embodiment of the utility model from a first angle;
[0024] Figure 5 This is a second angle schematic diagram of the feed bin of the ore feeder provided in the embodiment of the utility model;
[0025] Figure 6 It is a schematic diagram of a feed pipe provided in an embodiment of the utility model;
[0026] Figure 7 It is a schematic diagram of the end of a feed pipe according to another embodiment of the present utility model;
[0027] Figure 8 This is a sectional stereoscopic diagram of the ore feeder and the feed pipe provided in the embodiment of the utility model;
[0028] Fig. 9 This is a cross-sectional view of the ore feeder and the feed pipe provided in the embodiment of the utility model;
[0029] In the figure: 1, feeder; 11, housing; 12, guide bin; 13, partition; 14, liquid inlet; 15, feed bin; 16, liquid baffle; 161, horizontal baffle; 162, vertical baffle; 17, baffle ring; 18, annular cavity; 2, feed pipe; 21, baffle plate; 22, notch;
[0030] In order to show the positions of various parts, the distances or sizes between them are exaggerated and the schematic diagram is for reference only. DETAILED DESCRIPTION
[0031] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0032] As introduced in the background technology, the ore feeder has a return material leakage problem. Through analysis, it is found that the reasons for the leakage are as follows:
[0033] ① Since the lower hopper and the feeder are not supplied by the same manufacturer, during the spare parts manufacturing and employee installation process, the center of the lower hopper horizontal feed pipe may be inconsistent with the center of the feeder;
[0034] ②The design value of the spiral angle of the feeder is 120°, which may be larger or smaller in actual manufacturing engineering, with a certain error, which has a certain impact on material transportation;
[0035] ③ The liquid-to-solid ratio inside the feeder is 4:1 or 3.5:1 (liquid accounts for 4 or 3.5, solid accounts for 1). When there is too much liquid, the liquid level will exceed the height of the horizontal feed pipe and leak out from the gap between the feed pipe and the feeder;
[0036] ④ The internal part of the feeder is severely worn, and after the material flows out from the discharge end of the feeder, the liquid returns from the damaged part.
[0037] Due to the above reasons, leakage occurs at the gap between the feed pipe and the feeder, resulting in slurry on the ground and around the equipment, which is difficult to clean. There is a risk of alkali burns and slips during employee inspections, which poses a great threat to the safe and stable operation of the equipment. In order to solve the above technical problems, the utility model proposes a leakage prevention structure for a dissolution mill feeder.
[0038] like Figure 1 This is the appearance diagram of the ore feeder 1 and the feed pipe 2. Figure 2 This is a schematic diagram of the guide bin 12 of the ore feeder 1. Figure 3 It is a schematic cross-sectional view of the partition 13 of the feeder 1, Figure 4 This is a schematic diagram of the feed bin 15 of the ore feeder 1 from a first angle. Figure 5 The second angle diagram of the feed bin 15 of the feeder 1. The feeder 1 has a housing 11, and the two ends of the housing 11 are a feed sealing plate and a discharge sealing plate, respectively. The feeder 1 has a partition 13, and the partition 13 and the feed sealing plate form a feed bin, and the partition 13 and the discharge sealing plate form a guide bin 12. The partition 13 is provided with a liquid inlet 14, and the feed pipe 2 is inserted into the feed inlet.
[0039] A feed ring is provided at the feed port of the feed sealing plate, and the feed ring and the feed sealing plate form an annular cavity 18. A baffle plate 21 is provided on the outer wall of the feed pipe 2, and the baffle plate 21 is inserted into the annular cavity 18; a liquid baffle plate 16 is provided in the feeding bin, and the liquid baffle plate 16 is arranged at the position of the liquid inlet 14.
[0040] The anti-leakage structure of the utility model, on the one hand, is provided with a liquid baffle plate 16 at the liquid inlet 14 to prevent or reduce the liquid from flowing to the gap between the feed port and the feed pipe 2; on the other hand, a material baffle ring 17 and a material baffle plate 21 are provided at the gap between the feed port and the feed pipe 2 to form a labyrinth-type sealing structure. The problem of return material leakage of the feeder 1 is avoided by the liquid baffle plate 16, the material baffle ring 17 and the material baffle plate 21, thereby ensuring the cleaning of the site, preventing employees from slipping, and avoiding corrosion to other equipment, thereby ensuring the safe and stable operation of the equipment.
[0041] like Figure 8 , Fig. 9 As shown, the cross section of the feed ring is L-shaped, the connection between the feed ring and the feed sealing plate is located at the radial outer ring of the feed port, the baffle plate 21 is an annular plate, and the outer edge of the baffle plate 21 is inserted into the feed ring to form a labyrinth seal. Specifically, the feed ring includes a first plate member and a second plate member, the first plate member is an annular flat plate, the second plate member is an annular cylindrical plate, one end of the second plate member is connected to the outer edge of the first plate member to form an L-shaped cross section, and the second end of the second plate member is connected to the feed sealing plate.
[0042] The feed ring is arranged on the inner side of the feed sealing plate, and the baffle plate 21 is also located on the inner side of the feed sealing plate, and the feed ring and the baffle plate 21 form a labyrinth seal on the inner side of the feed sealing plate. In another preferred embodiment, a feed ring (not shown in the figure) is also arranged on the outer side of the feed sealing plate, and the outer feed ring and the inner feed ring are symmetrically arranged along the feed sealing plate, and two baffle plates 21 are arranged on the feed pipe 2, and the two baffle plates 21 are respectively located on the inner and outer sides of the feed sealing plate, forming a labyrinth seal on both the inner and outer sides of the feed sealing plate. Among them, the baffle ring 17 is welded on the feed sealing plate using a δ3 steel plate, and baffle plates 21 are welded on the inner and outer sides of the lower hopper horizontal feed pipe 2, and the baffle ring 17 and the baffle plates 21 form a labyrinth seal.
[0043] Furthermore, a notch 22 is provided at one end of the feed pipe 2 inserted into the feeder 1, and the notch 22 is located on the inner side of the baffle plate 21, and the notch 22 is provided on the upper side of the feed pipe 2 in the vertical direction. Even if some liquid splashes onto the feed pipe 2, the notch 22 is provided so that the liquid falls into the feed pipe 2 instead of falling onto the outside of the pipe wall, and the splashed liquid enters the feeder 1 under the flow of the material in the pipe without leaking to the outside.
[0044] The notch 22 can be provided in various ways, such as Figure 6 As shown, the longitudinal section of the notch 22 is rectangular, and the height of the notch 22 along the vertical direction is greater than the radius of the feed pipe 2, which is equivalent to cutting off half of the tube wall on the upper side of the feed pipe 2. In another embodiment, as Figure 7 As shown, the longitudinal section of the notch 22 is a triangle, i.e., the end of the feed pipe 2 is cut off along the oblique line. By cutting off the upper part of the feed pipe 2, the material falls into the pipeline instead of leaking to the outside along the feed pipe 2.
[0045] like Figure 4 As shown, the liquid baffle 16 is located at the rear side of the liquid inlet 14 in the rotation direction. Figure 5 As shown, the liquid baffle 16 includes a transverse baffle 161 and a longitudinal baffle 162. One side of the transverse baffle 161 is connected to the partition 13, and the other side of the transverse baffle 161 is connected to the feed sealing plate. The longitudinal baffle 162 is located at one end of the transverse baffle 161 close to the center and at the side of the transverse baffle 161 facing away from the center. The axial length of the longitudinal baffle 162 is shorter than the axial length of the transverse baffle 161, and the longitudinal baffle 162 is connected to the feed sealing plate. By welding a 20*20mm liquid baffle 16 with a wear-resistant steel plate of δ20 inside the feeder 1, especially the longitudinal baffle 162 arranged close to the feed sealing plate, the backflow of liquid is reduced.
[0046] In summary, the utility model adds a labyrinth seal at the feed end of the feeder 1, adds a liquid baffle 16 in the feed bin 15 of the feeder 1, and cuts off the upper part of the horizontal feed pipe 2 of the lower hopper, thereby solving the problem of return material leakage.
[0047] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.
Claims
1. A leakage prevention structure for a dissolution mill feeder, characterized in that: The feeder has a feed sealing plate and a partition, a feed bin is formed between the partition and the feed sealing plate, the feed sealing plate has a feed port, the partition is provided with a liquid inlet, and a feed pipe is inserted into the feed port; A feed ring is provided at the feed port of the feed sealing plate, and the feed ring and the feed sealing plate form an annular cavity. A baffle plate is provided on the outer wall of the feed pipe, and the baffle plate is inserted in the annular cavity; a liquid baffle plate is provided in the feeding bin, and the liquid baffle plate is arranged at the liquid inlet position.
2. The anti-leakage structure of the dissolution mill feeder according to claim 1, characterized in that: The cross section of the feed ring is L-shaped, the connection between the feed ring and the feed sealing plate is located at the radial outer ring of the feed port, the baffle plate is an annular plate, and the outer edge of the baffle plate is inserted into the feed ring to form a labyrinth seal.
3. The anti-leakage structure of the dissolution mill feeder according to claim 2, characterized in that: The feed ring includes a first plate and a second plate, the first plate is an annular flat plate, the second plate is an annular cylindrical plate, one end of the second plate is connected to the outer edge of the first plate to form an L-shaped cross-section, and the second end of the second plate is connected to the feed sealing plate.
4. The anti-leakage structure of the dissolution mill feeder according to claim 2, characterized in that: The feed ring is arranged on the inner side of the feed sealing plate, and the baffle plate is also located on the inner side of the feed sealing plate. The feed ring and the baffle plate form a labyrinth seal on the inner side of the feed sealing plate.
5. The anti-leakage structure of the dissolution mill feeder according to claim 4, characterized in that: A feed ring is also provided on the outside of the feed sealing plate, and the outer feed ring and the inner feed ring are symmetrically arranged along the feed sealing plate. Two baffle plates are provided on the feed pipe, and the two baffle plates are respectively located on the inner and outer sides of the feed sealing plate, forming a labyrinth seal on both the inner and outer sides of the feed sealing plate.
6. The anti-leakage structure of the dissolution mill feeder according to claim 1, characterized in that: A notch is arranged at one end of the feed pipe inserted into the ore feeder, the notch is located on the inner side of the baffle plate, and the notch is arranged on the upper side of the feed pipe in the vertical direction.
7. The anti-leakage structure of the dissolution mill feeder according to claim 6, characterized in that: The longitudinal section of the notch is rectangular, and the height of the notch along the vertical direction is greater than the radius of the feed pipe.
8. The anti-leakage structure of the dissolution mill feeder according to claim 6, characterized in that: The longitudinal section of the notch is a triangle.
9. The anti-leakage structure of the dissolution mill feeder according to claim 1, characterized in that: The liquid baffle is located at the rear side of the liquid inlet in the rotation direction.
10. The anti-leakage structure of the dissolution mill feeder according to claim 9, characterized in that: The liquid baffle plate includes a transverse baffle and a longitudinal baffle, one side of the transverse baffle is connected to the partition, and the other side of the transverse baffle is connected to the feed sealing plate, the longitudinal baffle is located at one end of the transverse baffle close to the center and at the side of the transverse baffle facing away from the center, the axial length of the longitudinal baffle is shorter than the axial length of the transverse baffle, and the longitudinal baffle is connected to the feed sealing plate.