Anti-blocking conveying device for mineral powder transportation

Abstract

The utility model relates to the technical field of mineral powder conveying equipment, in particular to an anti-blocking conveying device for mineral powder transportation, which comprises a shell, a powder inlet and a powder outlet are respectively arranged at the front end and the rear end of the shell, a first rotating shaft and a second rotating shaft are respectively mounted on the inner sides of the powder inlet and the powder outlet, and an annular chain is sleeved on the peripheries of the first rotating shaft and the second rotating shaft. A plurality of push plates are installed on the annular chain, a first rack and a second rack are installed on the two sides of the shell respectively, an air supply barrel is fixedly installed on the first rack, a wind wheel is installed at an air inlet of the air supply barrel, an electric heating pipe is arranged in the air supply barrel, and an air outlet of the air supply barrel is communicated with an inner cavity of the shell. According to the utility model, on one hand, the mineral powder is in a slow-speed circulation state, the fluidity of the mineral powder is improved, and the formation of chain-shaped aggregates is avoided, and on the other hand, the moisture absorption capacity of the mineral powder is reduced, so that the mineral powder is prevented from being stacked, the circulation rate of the mineral powder is ensured, the phenomenon of production stagnation is avoided, and the stability of production efficiency is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of mineral powder conveying equipment, and specifically discloses an anti-blocking conveying device for mineral powder transportation. Background Technology

[0002] Mineral powder is usually obtained by crushing mined ore. Under normal circumstances, mineral powder particles are small, have high surface energy, and are easy to agglomerate through electrostatic adsorption. They have poor flowability and are prone to forming an "arch bridge effect" especially when stationary or at low speed.

[0003] Currently, most mineral powder transport equipment uses conveyor belts. The front end of the conveyor belt is the mineral powder production equipment, and the rear end is the mineral powder processing equipment. Existing technologies mostly arrange the mineral powder on the conveyor belt for transfer and transport. When mineral powder is placed on the conveyor belt, on the one hand, it is mostly static or moving at low speed, easily forming chain-like agglomerates, with a flowability index often below 0.3; on the other hand, the moisture absorption of mineral powder can reach 30% of its own mass, and the bonding strength increases 5-8 times after moisture absorption, causing the mineral powder to change from a free-flowing dynamic to a viscoplastic state. Both of these situations can induce mineral powder stockpiling. When the stockpiled mineral powder reaches the downstream processing equipment, it is very easy to clog the feed inlet, causing production stagnation and even shutdown. Utility Model Content

[0004] In view of the current problem that mineral powder accumulation can easily cause production stoppages during mineral powder transportation, this utility model provides an anti-blockage conveying device for mineral powder transportation.

[0005] To solve the above problems, this utility model provides the following technical solution:

[0006] A clog-resistant conveying device for transporting mineral powder includes a housing. The front end of the housing has an upward-facing powder inlet. A first rotating shaft is rotatably mounted inside the powder inlet. The rear end of the housing has a second rotating shaft symmetrically arranged with the first rotating shaft. A ring chain is fitted around the periphery of both the first and second rotating shafts. The ring chain is arranged within the inner cavity of the housing. Multiple push plates are fixedly mounted on the ring chain, with the outer edges of the push plates slidingly engaging with the inner bottom wall of the housing. The rear end of the housing has a downward-facing powder outlet. A first frame and a second frame are respectively fastened to both sides of the housing. An air supply duct is fixedly mounted on the first frame. A fan wheel is rotatably mounted at the air inlet of the air supply duct. An electric heating element is installed inside the air supply duct. The air outlet of the air supply duct communicates with the inner cavity of the housing.

[0007] Preferably, a cover plate is fixedly installed on the top of the housing, and bearing seats are installed at both ends of the first and second rotating shafts. The bearing seats are tightly connected to the outer walls on both sides of the housing, and the first and second rotating shafts are rotatably engaged with the bearing seats.

[0008] Preferably, a first motor is fixedly mounted on the bearing housing on the outer side of the second rotating shaft, and the output shaft of the first motor is connected to the second rotating shaft for transmission.

[0009] Preferably, the bottom of the housing has an arc-shaped groove structure, and the outer edge of the push plate has an arc-shaped surface structure.

[0010] Preferably, an air outlet is provided on the side of the housing near the first frame, and the air outlet of the air supply duct is tightly fitted to the outer side of the air outlet.

[0011] Preferably, the housing has two ventilation openings on the side near the second frame, and a ventilation cylinder is fixedly installed on the second frame, with the openings at both ends of the ventilation cylinder tightly fitted to the two ventilation openings respectively.

[0012] Preferably, a bracket is fixedly installed on the top of the air supply duct, a second motor is fixedly installed on the top of the bracket, and the impeller is fastened to the end of the output shaft of the second motor.

[0013] Preferably, the bracket has multiple windows.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The powder inlet of this invention facilitates the entry of mineral powder into the internal cavity of the shell. A structure combining a ring chain and a pusher plate allows the pusher plate to move the mineral powder from the inlet to the outlet. A second motor and a fan wheel work together to draw in external air into the air supply duct, which is then heated by an electric heating element to create a high-temperature airflow. This high-temperature airflow is then sent into the internal cavity of the shell, forming a circular circulation that heats the mineral powder. This invention, on the one hand, ensures a slow-moving flow of the mineral powder, improving its fluidity and preventing the formation of chain-like agglomerates; on the other hand, it reduces the moisture absorption of the mineral powder, preventing powder accumulation and ensuring a stable production flow rate. Therefore, it has a very broad application prospect. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall device structure of this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall device structure of this utility model. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the internal structure of the shell of this utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the ring chain and push plate of this utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the air supply duct and bracket of this utility model;

[0022] In the diagram: 1. Shell, 2. Powder inlet, 3. First rotating shaft, 4. Second rotating shaft, 5. Ring chain, 6. Push plate, 7. Powder outlet, 8. First frame, 9. Second frame, 10. Air supply duct, 11. Fan wheel, 12. Heating element, 13. Cover plate, 14. Bearing seat, 15. First motor, 16. Air outlet, 17. Ventilation opening, 18. Ventilation duct, 19. Support, 20. Second motor, 21. Window. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] This specific embodiment provides an anti-blocking conveying device for transporting mineral powder, such as... Figures 1-5As shown, the device includes a housing 1, which has an elongated structure and an internal cavity. A cover plate 13 is fixedly installed on the top of the housing 1, and the bottom of the housing 1 has an arc-shaped groove structure. The front end of the housing 1 is provided with an upward-facing powder inlet 2, which can be arranged at the discharge end of the front-end mineral powder production equipment, so that the mineral powder can directly enter the internal cavity of the housing 1 from the front-end mineral powder production equipment.

[0025] A first rotating shaft 3 is rotatably mounted on the inner side of the powder inlet 2, with both ends of the first rotating shaft 3 arranged on the outer side of the housing 1. A second rotating shaft 4 is symmetrically arranged with the first rotating shaft 3 at the rear end of the housing 1, with both ends of the second rotating shaft 4 also arranged on the outer side of the housing 1. Two sets of symmetrically arranged bearing seats 14 are mounted on the outer side of the housing 1, with two bearing seats in each set. The bearing seats 14 are fastened to the outer walls on both sides of the housing 1, thereby fixing the bearing seats 14 to the outer walls of the housing 1. The two ends of the first rotating shaft 3 and the second rotating shaft 4 are arranged inside the bearing seats 14 and rotatably engage with the bearing seats 14, thereby rotatably mounting the first rotating shaft 3 and the second rotating shaft 4 inside the housing 1.

[0026] Gear discs are fixedly fitted onto the outer walls of both the first rotating shaft 3 and the second rotating shaft 4. A ring chain 5 is fitted between the two gear discs. The ring chain 5 is arranged in the inner cavity of the housing 1 and can rotate together with the first rotating shaft 3 and the second rotating shaft 4. Multiple push plates 6 are fixedly installed on the ring chain 5. The push plates 6 are symmetrically arranged and rotate together with the ring chain 5. The push plates 6 have a semi-circular structure and their outer edges are arc-shaped, so that the outer edges of the push plates 6 slide against the inner wall of the arc-shaped groove at the bottom of the housing 1.

[0027] The rear end of the housing 1 is provided with a downward-facing powder outlet 7. The powder outlet 7 can be arranged at the feed end of the rear-end mineral powder processing equipment, so that the mineral powder can directly enter the rear-end mineral powder processing equipment from the housing 1. A first motor 15 is fixedly installed on the bearing seat 14 on the outer side of the second rotating shaft 4. The first motor 15 is positioned close to the powder outlet 7 at the rear end of the housing 1. The output shaft of the first motor 15 is connected to the second rotating shaft 4 via a coupling, thereby driving the second rotating shaft 4 to rotate and providing it with driving force.

[0028] The first frame 8 and the second frame 9 are fastened to both sides of the shell 1 respectively. The first frame 8 and the second frame 9 are the supporting structures of the shell 1, which can fix the shell 1 in the conveying area and make it have a ground clearance, so as to facilitate the entry and exit of mineral powder.

[0029] An air outlet 16 is provided on the side of the housing 1 near the first frame 8, and the air outlet 16 is arranged in the middle section of the housing 1. An air supply duct 10 is fixedly installed on the first frame 8. The air supply duct 10 has a right-angle bent structure, with the air outlet of the air supply duct 10 arranged horizontally and the air inlet of the air supply duct 10 arranged vertically. A bracket 19 is fixedly installed on the top of the air supply duct 10, and the bracket 19 is arranged on top of its air inlet. A second motor 20 is fixedly installed on the top of the bracket 19. The output shaft of the second motor 20 can pass through the bracket 19 and be arranged in the air supply duct 10. A fan wheel 11 is fastened to the end of the output shaft of the second motor 20. The bracket 19 has multiple windows 21, so as to connect with the external environment. The fan wheel 11 can rotate with the output shaft of the second motor 20, thereby drawing in airflow and causing it to enter the air supply duct 10.

[0030] An electric heating element 12 is installed inside the air supply duct 10. The electric heating element 12 is arranged below the air outlet of the air supply duct 10. By electrically connecting the electric heating element 12 to an external power supply device, the electric heating element 12 generates high temperature and heats the airflow passing through the air inlet of the air supply duct 10. The air outlet of the air supply duct 10 is tightly fitted to the outside of the air outlet 16, thereby inputting the high-temperature airflow into the internal cavity of the housing 1.

[0031] Two ventilation openings 17 are provided on the side of the housing 1 near the second frame 9. The two ventilation openings 17 are symmetrically arranged and are respectively located inside the first rotating shaft 3 and the second rotating shaft 4. A ventilation cylinder 18 is fixedly installed on the second frame 9. The openings at both ends of the ventilation cylinder 18 are tightly fitted with the two ventilation openings 17, thereby forming a connected structure between the ventilation cylinder 18 and the inner cavity of the housing 1, which facilitates the circulation of high-temperature airflow in the internal cavity of the housing 1.

[0032] The working principle of this utility model is as follows:

[0033] Mineral powder is produced from the front-end mineral powder production equipment and enters the internal cavity of the housing 1 through the powder inlet 2. The first motor 15 is started, causing the second rotating shaft 4 to rotate, which in turn drives the annular chain 5 to rotate within the internal cavity of the housing 1. This causes the pusher plate 6 to push the mineral powder in the internal cavity of the housing 1 from the powder inlet 2 to the powder outlet 7. During this period, the second motor 20 is started, causing the output shaft of the second motor 20 to drive the impeller 11 to rotate, thereby sending air from the external environment into the air supply duct 10 through the window 21. The air is heated at high temperature by the electric heating tube 12, forming a high-temperature airflow. This high-temperature airflow is sent into the internal cavity of the housing 1 and, through the ventilation duct 18, forms an annular circulation within the internal cavity of the housing 1, thereby heating the mineral powder. On the one hand, this allows the mineral powder to flow at a slow speed, improving its fluidity and preventing the formation of chain-like agglomerates. On the other hand, it reduces the moisture absorption and binding strength of the mineral powder, thereby preventing the mineral powder from piling up and ensuring the flow rate of the mineral powder. Therefore, this utility model has a very wide range of application prospects.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A blockage-resistant conveying device for transporting mineral powder, comprising a housing (1), characterized in that, The front end of the housing (1) is provided with an upward-facing powder inlet (2). A first rotating shaft (3) is rotatably mounted on the inner side of the powder inlet (2). The rear end of the housing (1) is provided with a second rotating shaft (4) symmetrically arranged with the first rotating shaft (3). A ring chain (5) is fitted around the periphery of the first rotating shaft (3) and the second rotating shaft (4). The ring chain (5) is arranged in the inner cavity of the housing (1). Multiple push plates (6) are fixedly mounted on the ring chain (5). The outer edge of the push plate (6) The bottom inner wall of the housing (1) is slidably fitted, and the rear end of the housing (1) is provided with a powder outlet (7) with the opening facing downward; a first frame (8) and a second frame (9) are respectively fastened to the two sides of the housing (1), and an air supply duct (10) is fixedly installed on the first frame (8). A fan wheel (11) is rotatably installed at the air inlet of the air supply duct (10), and an electric heating tube (12) is provided inside the air supply duct (10). The air outlet of the air supply duct (10) is connected to the inner cavity of the housing (1).

2. The anti-blocking conveying device for transporting mineral powder according to claim 1, characterized in that, A cover plate (13) is fixedly installed on the top of the housing (1). Bearing seats (14) are installed at both ends of the first rotating shaft (3) and the second rotating shaft (4). The bearing seats (14) are tightly connected to the outer walls on both sides of the housing (1). The first rotating shaft (3) and the second rotating shaft (4) are rotatably engaged with the bearing seats (14).

3. The anti-blocking conveying device for transporting mineral powder according to claim 2, characterized in that, A first motor (15) is fixedly installed on the bearing seat (14) on the outer side of the second rotating shaft (4), and the output shaft of the first motor (15) is connected to the second rotating shaft (4) for transmission.

4. The anti-blocking conveying device for transporting mineral powder according to claim 1, characterized in that, The bottom of the housing (1) has an arc-shaped groove structure, and the outer edge of the push plate (6) has an arc-shaped surface structure.

5. The anti-blocking conveying device for transporting mineral powder according to claim 1, characterized in that, An air outlet (16) is provided on the side of the housing (1) near the first frame (8), and the air outlet of the air supply duct (10) is closely fitted to the outside of the air outlet (16).

6. The anti-blocking conveying device for transporting mineral powder according to claim 1, characterized in that, Two ventilation openings (17) are provided on the side of the housing (1) near the second frame (9). A ventilation cylinder (18) is fixedly installed on the second frame (9). The openings at both ends of the ventilation cylinder (18) are tightly fitted to the two ventilation openings (17).

7. The anti-blocking conveying device for transporting mineral powder according to claim 1, characterized in that, A bracket (19) is fixedly installed on the top of the air supply duct (10), and a second motor (20) is fixedly installed on the top of the bracket (19). The impeller (11) is fastened to the end of the output shaft of the second motor (20).

8. The anti-blocking conveying device for transporting mineral powder according to claim 7, characterized in that, The bracket (19) has multiple windows (21).

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