Stock bin bridging device

Abstract

The utility model discloses a stock bin bridging device, and relates to the technical field of material conveying. The device specifically comprises a material disc assembly, a lower scraping piece and an upper scraping piece, and the lower scraping piece is rotationally arranged on the side, close to a stock bin opening, of the material disc assembly; the upper scraping piece and the lower scraping piece rotate coaxially and are arranged on the side, away from the material disc assembly, of the lower scraping piece. The lower scraping piece and the upper scraping piece are each provided with at least one scraping mechanism extending towards the edge of the material disc assembly, and at least one material hole is formed in the position, below the gravity direction of the scraping mechanisms, of the material disc assembly. The lower scraping piece and the scraping mechanism with the upper scraping piece extending outwards jointly act, the upper scraping piece disturbs and stirs the upper portion of the material disc assembly, the lower scraping piece crushes and pushes materials on the surface of the material disc assembly, the materials can be smoothly discharged under different conditions, the material bridging phenomenon is avoided, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to material conveying technical field, especially relate to a material bin bridge device. BACKGROUND

[0002] In actual production process, due to the characteristics of some mixed materials, when the temperature of mixed materials exceeds 50 DEG C, the mixed materials appear the water loss (such as lithium hydroxide) and the flowability of mixed materials is poor, and the bridging and plugging easily occur when entering the next process equipment disc bin, leading to the difficulty in conveying and the failure in feeding, and the disc feeding needs to be improved for the phenomenon.

[0003] In the prior art, in order to solve the problem of plugging of the material bin, a pressure reducing cone is arranged at the discharge port of the material bin, the pressure reducing cone can reduce the resistance of the material in the flow process, improve the flowability and flow speed of the material, avoid the insufficient flow, prevent the bridging phenomenon of the material at the discharge port, and ensure that the material can flow out of the material bin smoothly and uniformly.

[0004] However, in the above scheme, since the pressure reducing cone is arranged at the discharge port of the material bin, it can solve the problem of bridging of most materials, but the humidity, density or particle size of the material is not uniform, and the flowability of the material is poor after mixing, so that the friction between the materials increases, and if the flow of the material in the material bin is too large, the material will also accumulate at the pressure reducing cone, leading to the bridging phenomenon, which cannot ensure the smooth flow of the material, and leads to the hardening phenomenon of the material in the material bin.

[0005] Therefore, the present application is to solve the problem of ensuring the smooth discharge of the material under different conditions in special occasions, and also to reduce the hardening phenomenon of the material bin. CONTENT OF THE UTILITY MODEL

[0006] The main purpose of the utility model is to provide a material bin bridge device, which can ensure the smooth discharge of the material under different conditions, and also reduce the hardening problem of the material bin.

[0007] In order to achieve the above purpose, the utility model provides a material bin bridge device, which comprises:

[0008] The tray assembly is provided with at least one material hole;

[0009] The lower scraping piece is rotatably arranged on one side of the tray assembly close to the material bin port; and

[0010] The upper scraping piece is coaxially rotatable with the lower scraping piece and is arranged on the side of the lower scraping piece away from the tray assembly;

[0011] The lower scraping piece and the upper scraping piece are provided with at least one scraping mechanism extending towards the edge of the tray assembly.

[0012] In the above scheme, the lower scraper and the upper scraper rotate coaxially and drive the corresponding scraping mechanism to disturb the material above the tray assembly, so as to avoid the nodular material accumulation above the tray assembly. The material can completely fall on the upper surface of the tray assembly and be driven to fall on the tray assembly under the disturbance of the scraping mechanism of the upper scraper. Under the action of the scraping mechanism of the lower scraper, the material is broken and drives the material on the surface of the tray assembly to fall along the material hole. The material hole can be provided with a plurality of holes. The material hole is arranged directly below the scraping mechanism, so that the material can fall into the material hole from below the scraping mechanism after being disturbed by the scraping mechanism and fall out of the material hole, so as to meet the material discharge of the silo.

[0013] Further, the tray assembly is disc-shaped, and the material hole is circumferentially distributed around the axis of the tray assembly.

[0014] Further, the scraping mechanism is at least one scraper, scraper or scraper strip perpendicular to the axis of the tray assembly. Various ways can push the material from the surface of the tray assembly to the material hole and concentrate the material from the material hole.

[0015] Further, the gap between the scraping mechanism of the lower scraper and the tray assembly is 5 to 30 cm. The particle size of the material is different, and the gap between the scraping mechanism and the tray assembly is also different. If the particle is too large, it is easy to squeeze and accumulate in the material hole. If the particle is too small, the scraper, scraper or scraper strip of the lower scraper is not easy to push the material on the surface of the tray assembly to the material hole. Therefore, the gap between the scraping mechanism of the lower scraper and the surface of the tray assembly can be adjusted according to the size of the material particles.

[0016] Further, the central shaft is rotatably arranged in the middle of the tray assembly, and the central shaft and the upper scraper are fixedly installed with a shielding member.

[0017] Further, the shielding member is a cone, trapezoid or circular truncated cone for guiding the material to the scraping mechanism of the lower scraper. The outer wall of the shielding member is inclined to avoid the material being rolled into the rotating connection of the upper scraper. The disturbed material can be guided to the surface of the tray assembly. The shielding member has a centrifugal force when rotating. The material on the inclined surface of the shielding member can further fall on the upper surface of the tray assembly to improve the material discharge effect. In order to improve the sealing effect, a sealing pad can be installed at the gap between the shielding member and the lower scraper to improve the sealing effect.

[0018] Further, the tray assembly is provided with a baffle at one end away from the lower scraper, and the baffle is rotatably connected with the central shaft. A packing is installed between the baffle and the central shaft to improve the connection tightness. The outer wall of the central shaft is further provided with a gland. The gland is fixed in the middle of the tray assembly by bolts to form a closed area in the whole baffle.

[0019] Further, the baffle is also provided with a driving member at one end away from the tray assembly, and the driving member is used to drive the rotation of the central shaft.

[0020] Further, the driving member comprises a connecting member installed at the bottom of the baffle and a speed reducer fixed on the connecting member.

[0021] Further, the material hole is provided with a transition structure extending along the gravity direction, so as to limit the falling of the material along the cross-sectional area of the material hole.

[0022] The above technical scheme has the following advantages:

[0023] The lower scraping member and the upper scraping member extend outwardly and jointly act on the scraping mechanism, the upper scraping member disturbs and stirs the upper part of the tray assembly, the lower scraping member breaks and pushes the material on the surface of the tray assembly, and the material is scattered and falls on the tray assembly under the joint action of the two, and then the material is broken and pushed to the material hole, so that the material can be smoothly discharged under different conditions, the bridging phenomenon of the material is avoided, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] The utility model will be explained in detail below in combination with specific embodiments and drawings, in which:

[0025] Figure 1 It is a structural schematic view of the utility model;

[0026] Figure 2 It is a front view of the utility model;

[0027] Figure 3 It is a side view of the utility model.

[0028] In the drawings: 1, tray assembly; 2, lower scraping member; 3, upper scraping member; 4, gland; 5, baffle; 6, central shaft; 7, driving member; 8, shielding member; 9, packing; 10, connecting member; 11, material hole; 12, electromagnetic valve; 13, pressure regulating valve; 14, pipe body; 15, wire hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be explained in detail below in combination with drawings and embodiments.It should be understood that the following specific embodiments are only used to explain the utility model, and do not limit the utility model.

[0030] For example, Figure 1And Figure 2 As shown in the drawings, a silo bridging device comprises a tray assembly 1, a lower scraping member 2 and an upper scraping member 3. The lower scraping member 2 is rotationally arranged on one side of the tray assembly 1 close to the silo opening. The upper scraping member 3 is coaxially rotatable with the lower scraping member 2 and is arranged on the side of the lower scraping member 2 away from the tray assembly 1. The lower scraping member 2 and the upper scraping member 3 are each provided with at least one scraping mechanism extending towards the edge of the tray assembly 1. At least one material hole 11 is formed below the gravity direction of the scraping mechanism in the tray assembly 1. The lower scraping member 2 and the upper scraping member 3 are coaxially rotatable and drive the corresponding scraping mechanism to disturb the material above the tray assembly 1, so as to avoid the nodular material accumulation above the tray assembly 1. The material can completely fall on the upper surface of the tray assembly 1 and be driven to scatter and fall on the tray assembly 1 under the disturbance of the scraping mechanism of the upper scraping member 3. The material is broken and drives the material on the surface of the tray assembly 1 to fall along the material hole 11 under the action of the scraping mechanism of the lower scraping member 2. The material hole 11 can be provided with a plurality of material holes 11. The material hole 11 is arranged directly below the scraping mechanism, so that the material can fall into the material hole 11 from below the scraping mechanism after being disturbed by the scraping mechanism and fall out of the material hole 11, so as to meet the silo material discharge.

[0031] As an embodiment in the present embodiment, the tray assembly 1 can be provided in a disc shape, a square shape or a polygonal shape. The tray assembly 1 is preferably in a disc shape. The material holes 11 are circumferentially distributed around the axis of the tray assembly 1. Specifically, the material holes 11 can be circumferentially arranged around the axis of the lower scraping member 2 and the upper scraping member 3, so that the material holes 11 are located directly below the scraping mechanism. The scraping mechanism of the lower scraping member 2 can drive the material on the surface of the tray assembly 1 to move to the material hole 11, so as to drive the material to fall.

[0032] As shown in the drawings, Figure 1 And Figure 2 As an embodiment in the present embodiment, the scraping mechanism is at least one scraper, scraper or scraping strip perpendicular to the axis of the tray assembly 1. The number of the scraper, the scraper or the scraping strip can be provided as two, for example. When the scraper is used, the surface of the scraper is perpendicular to the upper surface of the tray assembly 1, so that the scraper can drive the material on the surface of the tray assembly 1 to move to the material hole 11 and fall through the material hole 11 when the scraper rotates around the axis of the lower scraping member 2. If the scraper is used, the structure is preferably a plow blade. The bend part of the plow blade can store part of the material and push the stored material to the material hole 11, so as to further promote the material to fall from the material hole 11. If the scraping strip is used, the structure is arc-shaped, so that the scraping strip can drive the material on the surface of the tray assembly 1 to flow towards the edge. The material hole 11 can be arranged at the edge of the tray assembly 1, so as to promote the material to directly fall from the edge of the material hole 11. The above-mentioned various ways can drive the material to be pushed from the surface of the tray assembly 1 to the material hole 11 and be discharged from the material hole 11.

[0033] As shown in the drawings, Figure 1 And Figure 2As shown, as an embodiment in the present embodiment, the gap between the scraping mechanism of the lower scraping piece 2 and the tray assembly 1 is 5-30 cm, wherein the particle size of the material is different, and the gap between the scraping mechanism and the tray assembly 1 is also different, if the particle is too large, it is easy to squeeze and accumulate in the hole 11, if the particle is too small, the scraper, scraper or scraping strip of the lower scraping piece 2 is not easy to push the material on the surface of the tray assembly 1 to the hole 11, so the present application can adjust the gap between the scraping mechanism of the lower scraping piece 2 and the surface of the tray assembly 1 according to the size of the material particle.

[0034] As shown in the drawings, Figure 2 The center shaft 6 is rotatably arranged in the middle of the tray assembly 1, and the shielding piece 8 is fixedly installed between the center shaft 6 and the upper scraping piece 3, and the shielding piece 8 is coaxially fixed with the lower scraping piece 2, which can be installed by bolts, and the shielding piece 8 and the upper scraping piece 3 can be integrally formed to improve the connection strength between the center shaft 6 and the upper scraping piece 3, avoid material extrusion, and cause the connection of the upper scraping piece 3 to be weak and prone to breakage. The shielding piece 8 is a cone, trapezoid or circular truncated cone, which is used to guide the material to the scraping mechanism of the lower scraping piece 2. The outer wall of the shielding piece 8 is inclined to avoid the material from being wrapped into the rotating connection of the upper scraping piece 3, and the disturbed material can be guided to the surface of the tray assembly 1. The shielding piece 8 has a centrifugal force when rotating, and the material on the inclined surface of the shielding piece 8 can further fall on the upper surface of the tray assembly 1 to improve the discharging effect of the material. In order to improve the sealing effect, a sealing gasket can be installed at the gap between the shielding piece 8 and the lower scraping piece 2 to improve the sealing effect.

[0035] As shown in the drawings, Figure 1 And Figure 2 The end of the tray assembly 1 away from the lower scraping piece 2 is provided with a baffle 5, the baffle 5 is rotatably connected with the center shaft 6, and the baffle 5 and the center shaft 6 are provided with a packing 9 to improve the connection tightness, and the outer wall of the center shaft 6 is further provided with a gland 4, the gland 4 is fixed in the middle of the tray assembly 1 by bolts, first, the packing 9 is installed outside the center shaft 6, and then the packing 9 is fixed by the gland 4; the end of the baffle 5 away from the tray assembly 1 is also provided with a driving piece 7, the driving piece 7 is used to drive the center shaft 6 to rotate, the driving piece 7 can adopt a servo motor, a speed reducer and the like, in the present application, the driving piece 7 includes a connecting piece 10 installed at the bottom of the baffle 5 and a speed reducer fixed on the connecting piece 10, the connecting piece 10 is fixed at the bottom of the baffle 5 by bolts and gaskets, the speed reducer and the motor are jointly installed at the bottom of the connecting piece 10, the center shaft 6 penetrates the baffle 5 and the connecting piece 10, and the output end of the speed reducer drives the center shaft 6 to rotate, so as to realize the effect of coaxially rotating the lower scraping piece 2 and the upper scraping piece 3.

[0036] As shown in the drawings, Figure 2As shown, the hole 11 extends along the gravity direction and has a transition structure for limiting the material falling along the cross-sectional area of the hole 11. The transition structure is a ring or frame body which has the same cross section as the hole 11 and extends along the gravity direction. When the material falls, the ring or frame body can limit the channel of the material falling, so that the material does not contact the driving part 7 when falling, so as to avoid the material remaining on the surface of the driving part 7.

[0037] The outer wall of the baffle 5 is further provided with a pressure regulating valve 13 and a solenoid valve 12, and the pressure regulating valve 13 and the solenoid valve 12 are connected through a pipe body 14. The side wall of the baffle 5 is further provided with a wire hole 15 for the pipe body 14 to extend into, so as to realize the shaft end gas sealing. During the operation of the equipment, the baffle 5 is sealed and supplied with gas to prevent the bearing from being damaged due to the ash entering. All the parts contacting the material are made of SUS304 stainless steel, and the outer surface of the stainless steel is sprayed and treated, and is sprayed with a protective liquid. The scraping mechanism is made of SUS304+WC (300um).

[0038] After the material enters the silo, the motor drives the speed reducer to move, the speed reducer drives the central shaft 6 to rotate, and the scraping mechanisms of the lower scraping part 2 and the upper scraping part 3 move synchronously. When the material in the middle part of the silo has a caking phenomenon, the material is crushed, stirred and sent into the hole 11 by the scraper structure, and is discharged from the hole 11 to complete the whole process.

[0039] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application. Any equivalent structural transformation or direct / indirect application in other related technical fields under the inventive concept of the present application is included in the patent protection range of the present application.

Claims

1. A silo bridging device characterized by, The application relates to a material disc assembly and a material disc assembly driving device. The material disc assembly (1) is provided with at least one material hole (11). A lower scraping part (2) is arranged on one side of the material disc assembly (1) close to a material bin opening. An upper scraping part (3) is coaxially arranged with the lower scraping part (2) and is arranged on the side of the lower scraping part (2) away from the material disc assembly (1). The lower scraping part (2) and the upper scraping part (3) are each provided with at least one scraping mechanism extending towards the edge of the material disc assembly (1). The material disc assembly (1) is disc-shaped, and the material holes (11) are circumferentially distributed around the axis of the material disc assembly (1).

2. The silo bridging device of claim 1, wherein, The scraping mechanism is at least one scraper, a doctor blade or a scraping strip perpendicular to the axis of the material disc assembly (1).

3. The silo bridging device of claim 1, wherein, The gap between the scraping mechanism of the lower scraping part (2) and the material disc assembly (1) is 5-30 cm.

4. The silo bridging device of claim 3, wherein, A central shaft (6) is arranged in the middle of the material disc assembly (1), and a shielding part (8) is fixedly arranged between the central shaft (6) and the upper scraping part (3).

5. A silo bridging device according to claim 3 or 4, characterised in that The shielding part (8) is a cone, a trapezoid or a circular truncated cone, and is used for guiding the material to the scraping mechanism of the lower scraping part (2).

6. The silo bridging device of claim 5, wherein, A baffle (5) is arranged at the end of the material disc assembly (1) away from the lower scraping part (2), and the baffle (5) is rotationally connected with the central shaft (6).

7. The silo bridging device of claim 5, wherein, A driving part (7) is further arranged at the end of the baffle (5) away from the material disc assembly (1), and the driving part (7) is used for driving the rotation of the central shaft (6).

8. The silo bridging device of claim 7, wherein, The driving part (7) comprises a connecting part (10) arranged at the bottom of the baffle (5) and a speed reducer fixed on the connecting part (10).

9. The silo bridging device of claim 8, wherein, The material hole (11) is provided with a transition structure extending along the direction of gravity, so as to limit the falling of the material along the cross-sectional area of the material hole (11).

10. The silo bridging device of claim 1, wherein, ​

Images