Hopper structure of bucket elevator for spodumene mineral powder
By introducing anti-leakage plates and side wall plate structures into the buckets of the spodumene powder bucket elevator, the problem of powder return has been solved, and the elevator efficiency and service life have been improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-27
AI Technical Summary
In the existing process of conveying spodumene ore powder, the unreasonable design of the elevator bucket structure leads to serious powder backflow, low lifting efficiency, and increased energy consumption.
The structure of anti-leakage plates and side wall plates enhances the support capacity of the hopper, increases the static angle of repose of the powder, and reduces powder leakage.
It effectively reduces powder leakage during transportation, improves efficiency, reduces energy consumption, and extends the service life of the hopper.
Smart Images
Figure CN224046202U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the transportation field, especially to the hoist technical field, specifically point to a kind of hopper structure of bucket elevator for spodumene powder. BACKGROUND
[0002] In the production of lithium carbonate prepared by spodumene, the dry lithium ore powder needs to be vertically transported from low position to high position silo, and in this transfer process, pneumatic conveying or bucket elevator and other conveying equipment are needed, because of low power consumption, more occasions choose to use NE type elevator or steel wire rubber belt elevator to transfer material, because the equipment manufacturer does not fully consider the influence of the characteristics factors such as bulk specific gravity, angle of repose and fluidity of the conveying material, the traditional elevator hopper structure design is unreasonable, which causes serious back feeding during the running process of lifting powder, some only reach about 40-50% of the calibrated lifting amount, increase energy consumption, and lead to low conveying efficiency. Therefore, a new type of hopper structure is needed to solve the above problems.
[0003] In the production of lithium carbonate prepared by spodumene, the average particle size of spodumene ore powder after grinding reaches 75 microns, and the flowability of dry ore powder is very good, and its static angle of repose is less than 20 degrees. The lithium carbonate production line spodumene ore powder bucket elevator receives powder from low position, and the hopper runs upward following the belt after being filled with material. The hopper is in full material state at 11 o'clock position, and rotates clockwise to 12 o'clock 30 position following the belt. Because of the characteristics of lithium ore powder, part of the powder in the hopper has been poured out and fallen back to the bottom of the elevator. The residual powder is discharged from the outlet of the elevator at 14 o'clock position, and the residual powder will still leak out during the turning process from 12 o'clock 30 to 14 o'clock position. The actual output of powder through the outlet of the elevator is less than 30% of its lifting capacity, which greatly reduces the lifting efficiency. CONTENT OF THE UTILITY MODEL
[0004] In view of the deficiencies of the prior art, the utility model provides a hopper structure of bucket elevator for spodumene ore powder, which uses a leakage prevention plate to support the powder and reduce the inclination of the powder during transportation.
[0005] The utility model is realized through the following technical scheme, a kind of hopper structure of bucket elevator for spodumene ore powder, including the hopper body of front side opening, the leakage prevention plate being set on the inner bottom surface of hopper body and extending to the outside of opening, the bottom surface of the hopper body includes the bottom plate that can be detachably connected with conveying belt, and the inclined plate that is connected with bottom plate and extends upward and forward in inclination, the leakage prevention plate is connected on the inclined plate.
[0006] The utility model discloses a length of bottom plate is increased through the setting of the anti -leakage board, and the powder is supported by the anti -leakage board when transporting, thereby reducing the falling of powder, that is, the height of powder static angle of repose is improved, thereby can reduce the amount of powder leakage in the transportation process.
[0007] As preferred, the anti-leakage board is connected with two side wall plates at both ends, and the two side wall plates are connected with the left side plate and the right side plate of the bucket body respectively.
[0008] The preferred embodiment is set by the side wall plate, which cooperates with the left side plate and the right side plate to avoid powder leakage from both sides of the anti-leakage board, thereby further reducing the amount of powder leakage.
[0009] As preferred, the side wall plate is triangular, and the vertex of the triangle is located at the midpoint of the opening side, and the side away from the opening side is parallel to the powder static angle of repose.
[0010] The preferred embodiment is set by the midpoint, which facilitates the positioning of the side wall plate position and the setting of the side wall plate size.
[0011] As preferred, the inner side of the side wall plate is flush with the inner side of the left side plate or the right side plate.
[0012] The preferred embodiment is set by the flush inner side to avoid forming a stepped block to the powder, thereby facilitating the loading and unloading of the powder.
[0013] As preferred, the width W1 of the anti-leakage board, the shortest distance between the two buckets is l3, and W1=0.85*l3*COSβ. The setting of the preferred embodiment prevents interference and collision between adjacent two buckets during the operation of the elevator after adding the anti-leakage board.
[0014] As preferred, when the bucket is directly above, the angle between the powder static angle of repose and the horizontal plane is α, the inclination angle of the inclined plate is β, and the angle between the anti-leakage board and the powder static angle of repose is γ, and γ=α+β.
[0015] The preferred embodiment is set by the angle, which facilitates the setting of the corresponding size of the anti-leakage board and the side wall plate according to the different size of the bucket.
[0016] As preferred, the top plate of the bucket is parallel to the inclined plate.
[0017] The preferred embodiment is set by the inclined top surface of the bucket, which facilitates the digging of the powder, and is set by the parallel inclined plate, which facilitates the manufacture of the bucket.
[0018] As preferred, the rear side plate of the bucket includes a bent wall protruding backward. The preferred embodiment is set by the bent wall, which facilitates the increase of the carrying capacity of the bucket.
[0019] As preferred, a reinforcing plate is arranged on the top surface of the bucket body and in contact with the material, and the two ends of the reinforcing plate are fixed with auxiliary plates on the left side and the right side.
[0020] The preferred embodiment enhances the strength of the material digging position of the bucket body by arranging the reinforcing plate and the auxiliary plate, thereby prolonging the service life of the bucket body.
[0021] The utility model discloses the beneficial effects are: through the setting of the leakage prevention plate, the length of the bottom plate is increased, and the powder is supported by the leakage prevention plate during transportation, thereby reducing the falling of the powder, i. e. improving the height of the powder static angle of repose, thereby reducing the amount of powder leakage during transportation; through the setting of the side wall plate, the left side plate and the right side plate are cooperated, thereby avoiding the leakage of the powder from the two sides of the leakage prevention plate, thereby further reducing the amount of powder leakage; through the setting of the reinforcing plate and the auxiliary plate, the strength of the material digging position of the bucket body is enhanced, thereby prolonging the service life of the bucket body. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is the schematic diagram of the utility model structure at 12:30 position;
[0023] Figure 2 It is the three-dimensional schematic diagram of the leakage prevention plate and the side wall plate;
[0024] Figure 3 It is the unfolded schematic diagram of the leakage prevention plate and the side wall plate;
[0025] Figure 4 It is the bucket body operation schematic diagram without leakage prevention plate;
[0026] Figure 5 It is the schematic diagram of two adjacent bucket bodies;
[0027] In the drawing:
[0028] 1, leakage prevention plate, 2, side wall plate, 3, inclined plate, 4, bottom plate, 5, rear side plate, 6, top plate. DETAILED DESCRIPTION
[0029] In order to clearly illustrate the technical features of the present scheme, the present scheme will be described below through specific embodiments.
[0030] The utility model discloses a bucket structure of bucket elevator for spodumene ore powder, including the bucket body of front side face opening, referring to the attached Figure 1The bucket body is a groove with a front side opening, which is surrounded by a left side plate, a right side plate, a rear side plate, a bottom plate, a top plate and an inclined plate, the front side of the bottom plate is connected with the inclined plate, the inclined plate extends upward and forward, the top plate is arranged in parallel with the inclined plate, the rear side plate comprises a bent wall which protrudes backward, a reinforcing plate which contacts with the material is arranged on the top plate of the bucket body, two auxiliary plates are fixedly connected with the ends of the reinforcing plate and located on the left side and the right side, and the bottom plate is connected with the conveying belt through bolts.
[0031] Referring to the drawings Figure 4 At this time, when the bucket body is driven by the conveying belt to rotate to the position of 12:30 and has not reached the discharging position of 14:00, only relying on the arrangement of the inclined plate will cause part of the powder to leak out, thereby affecting the lifting efficiency of the powder.
[0032] Therefore, the anti-leak plate is connected to the front side of the inclined plate away from the bottom plate, referring to the drawings Figures 1-3 The anti-leak plate is arranged in parallel with the inclined plate, the inner side of the anti-leak plate is provided with wear-resistant ribs to enhance the wear resistance during discharging and prolong the service life of the anti-leak device, and two side wall plates are connected to the two ends of the anti-leak plate and connected with the left side plate and the right side plate of the bucket body respectively. The side wall plate is triangular.
[0033] Referring to the drawings Figure 1 In the front view direction, A is the intersection of the inclined plate and the anti-leak plate, B is the point formed by the front side edge of the anti-leak plate, C is the intersection of l2 and the top plate of the bucket body, D is the point where the front side edge of the top plate is located, a is the static angle of heaping of lithium mineral powder, l1 is the static angle of heaping of the powder, l2 is a line parallel to l1, O is the midpoint of the outline AB of the bucket, β is the included angle between the inner inclined edge of the bucket of the utility model and the horizontal line, γ is the included angle between the side wall plate BO of the anti-leak device and the edge AB, W1 is the width of the bottom plate of the anti-leak device, L1 is the length of the opening of the outer shape of the bucket, L2 is the width of the opening of the outer shape of the bucket, the included angle between the static angle of heaping of the powder and the horizontal plane is a, the inclination angle of the inclined plate is β, the included angle between the anti-leak plate and the static angle of heaping of the powder is γ, and the inner side of the side wall plate is flush with the inner side of the left side plate or the right side plate.
[0034] When there is no anti-leak plate, the material above l1 will leak out during the conveying process.
[0035] A parallel line l2 of l1 passes through O, l2 intersects with the outer side plate edge of the bucket at point C, and the inner side plate edge of the bucket is extended to intersect with l2 at point B, according to the drawing ΔAOB≌ΔDOC, it can be known from the drawing that the space area of the cross section ΔDOC of the bucket is the volume of the powder which leaks out naturally, and the space area of the cross section ΔAOB formed by extending the inner side plate of the bucket is the increased volume of the bucket, that is, the vertex of the side wall plate is located at the midpoint of the opening side edge, and the side wall plate is arranged in parallel with the static angle of heaping of the powder away from the opening side edge OB.
[0036] The width W1 of the leakage prevention plate is limited by the distance between the two hoppers, and cannot exceed the allowable size, so that the hoppers do not interfere with each other during the operation of the elevator after the leakage prevention device is added.
[0037] According to Figure 1 As shown in the figure, the side plate included angle γ of the leakage prevention plate is α+β, and the side plate AO=½L2. By adding the leakage prevention device, the powder leakage is effectively prevented after the hopper is turned, and the powder is supported to the discharge port of the elevator during the turning of the hopper to the discharge port, so that the backflow is reduced.
[0038] The shortest distance between the two adjacent hopper bodies is l3, that is, the shortest distance between the protruding point of the rear side plate of the first hopper body and the inclined plate of the second hopper body is l3, and W1=0.85*l3*COSβ.
[0039] Referring to the accompanying Figure 1 , in the scheme, the powder below l1, that is, the powder in the x area is blocked by the inclined plate, the powder above l2, that is, the powder in the z area is inclined and slides between the leakage prevention plate and the side wall plate, that is, the w area, and the powder below l2, so that the powder between l1 and l2, that is, the powder in the y area and the powder in the w area are blocked, thereby reducing the amount of leakage and improving the lifting efficiency.
[0040] In use, the length of the bottom plate is increased by the setting of the leakage prevention plate, the powder is supported by the leakage prevention plate during transportation, so that the falling of the powder is reduced, that is, the height of the static pile angle side line of the powder is increased, so that the amount of leakage of the powder during transportation is reduced; the left side plate and the right side plate are cooperated by the setting of the side wall plate, so that the powder is prevented from leaking from the two sides of the leakage prevention plate, and the amount of powder leakage is further reduced; the strength of the material digging position of the hopper body is enhanced by the setting of the reinforcing plate and the auxiliary plate, so that the service life of the hopper body is improved.
[0041] Of course, the above description is not limited to the above examples, and the technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here; the above embodiments and drawings are only used to illustrate the technical scheme of the utility model and are not limited to the utility model, the preferred embodiments are described in detail, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.
Claims
1. A hopper structure of a bucket elevator for spodumene ore powder, characterized by: The hopper body comprises a front side opening, a leakage prevention plate arranged on the inner bottom surface of the hopper body and extending out of the opening, the bottom surface of the hopper body comprises a bottom plate detachably connected with a conveying belt, and an inclined plate connected with the bottom plate and extending upward and forward in an inclined manner, and the leakage prevention plate is connected with the inclined plate.
2. The hopper structure for a bucket elevator for spodumene ore powder according to claim 1, characterized by: Two side wall plates are connected with both ends of the leakage prevention plate, and the two side wall plates are respectively connected with a left side plate and a right side plate of the hopper body.
3. The hopper structure for a bucket elevator for spodumene ore powder according to claim 2, characterized by: The side wall plate is triangular, the vertex of the triangular shape is located at the midpoint of the side of the opening, and the side away from the side of the opening is arranged in parallel with the static angle of repose line of the powder.
4. The hopper structure for a bucket elevator for spodumene ore powder according to claim 2, characterized by: The inner side surface of the side wall plate is flush with the inner side surface of the left side plate or the right side plate.
5. The hopper structure for a bucket elevator for spodumene ore powder according to claim 2, characterized by: When the hopper is directly above, the included angle between the static angle of repose line of the powder and the horizontal plane is α, the inclination angle of the inclined plate is β, and the included angle between the leakage prevention plate and the static angle of repose line of the powder is γ, and γ = α + β.
6. The hopper structure for a bucket elevator for spodumene ore powder according to claim 5, characterized by: The width W1 of the leakage prevention plate, and the shortest distance l3 between two hopper bodies, and W1 = 0.85 * l3 * COSβ.
7. The hopper structure for a bucket elevator of spodumene ore powder according to claim 1, characterized by: The top plate of the hopper body is arranged in parallel with the inclined plate.
8. The hopper structure for a bucket elevator of spodumene ore powder according to claim 1, characterized by: The rear side plate of the hopper body comprises a bent wall protruding rearward.
9. The hopper structure for a bucket elevator of spodumene ore powder according to claim 1, characterized by: A reinforcing plate in contact with the material is arranged on the top surface of the hopper body, and two auxiliary plates on the left side surface and the right side surface are fixedly connected with both ends of the reinforcing plate.