Anti-blocking mineral powder conveying device

Abstract

The utility model discloses an anti-blocking mineral powder conveying device, and relates to the technical field of mineral powder conveying, the anti-blocking mineral powder conveying device comprises a conveying box and a conveying assembly, the conveying assembly comprises a first auger, the first auger is rotatably arranged in the conveying box in the axial direction of the first auger, and the first auger extends to the other end of the conveying box in the length direction of the conveying box; the second auger is distributed in parallel with the first auger, is rotationally arranged in the conveying box in the axial direction of the second auger and extends to the other end of the conveying box in the length direction of the conveying box, and blades on the second auger are opposite to the rotation direction of the first auger; the blades on the first auger and the second auger are staggered with each other; according to the ore powder conveying device, due to the fact that the blades which rotate in the opposite directions and are staggered are arranged on the first auger and the second auger, ore powder can be effectively prevented from being blocked in the conveying process, the reliability and the stability of the conveying device are improved, the shutdown maintenance time caused by blocking is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral powder conveying, in particular to an anti-blocking mineral powder conveying device. Background Art

[0002] Mineral powder is a general term for stone dust and its substitutes that meet engineering requirements. It is a fine powder obtained from ore through processing, grinding, and other processes. Mineral powder is typically processed after mining. The mining face of a mine is often some distance away from the processing site or storage area. Mineral powder conveying equipment can quickly and continuously transport mineral powder from the mining face to its destination, shortening transportation time and improving the efficiency of the entire production process.

[0003] The mineral powder conveying devices in the existing technology all use a single auger to convey the mineral powder. However, when a single auger handles sticky materials, all the adhesion forces are concentrated on this single auger, which easily causes the mineral powder to adhere tightly to the surface of the auger, hindering the conveying process. As time goes by, the adhered material will become more and more, seriously affecting the feeding efficiency and may even cause the auger to be blocked.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-blocking mineral powder conveying device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides an anti-blocking mineral powder conveying device, comprising a conveying box and a conveying assembly, wherein the conveying assembly comprises a first auger, which is rotatably arranged in the conveying box along its axial direction and extends along the length direction of the conveying box to the other end of the conveying box;

[0007] The second auger is arranged parallel to the first auger, is rotatably arranged in the conveying box along its axial direction, extends along the length direction of the conveying box to the other end of the conveying box, and the blades on the second auger rotate in the opposite direction to the first auger;

[0008] The blades on the first auger and the second auger are staggered with each other.

[0009] Furthermore, the first auger and the second auger are both hollow, a heater is provided at one end of the conveying box, two heat conducting rods are installed on the heater, and the heat conducting rods are adapted to the cavities in the first auger and the second auger and are installed in the cavities.

[0010] Furthermore, a motor is installed at the other end of the conveying box, and the first auger or the second auger is fixedly connected to the output shaft of the motor. A transmission cavity is opened in the side wall of the other end of the conveying box, and one end of the first auger and the second auger is rotatably connected in the transmission cavity, and an engaged gear set is provided on one end of the first auger and the second auger.

[0011] Furthermore, push plates are provided on the parts of the first auger and the second auger located in the transmission chamber, and the push plates are fixedly connected to the blades on the first auger and the second auger. The blades can slide back and forth on the first auger and the second auger. A spring is provided between the push plate and the gear set, and a push rod is provided on the transmission chamber, and a chamfer is provided on the push rod.

[0012] Furthermore, sealed bearings are provided at the connection points between the outer wall of the conveying box and the first auger, the motor and the second auger.

[0013] Furthermore, a harmonic reducer is provided between the motor and the sealed bearing.

[0014] Furthermore, the first auger and the second auger pass through two sealed bearings on the other end of the conveying box, and the sealed bearings at this end are fixedly connected to a connecting ring. Docking rings are provided at both ends of the heater, and the docking rings are provided on the outside of the heat-conducting rod. The docking rings are threadedly connected to the connecting rings.

[0015] Furthermore, the bottom surface of the conveying box is provided with brackets, and the brackets are distributed at intervals on both sides of the outer wall of the bottom surface of the conveying box, and rubber pads are provided at both ends of the brackets.

[0016] Furthermore, a discharge port is provided on the bottom surface of one end of the conveying box, the lowest end of the discharge port is higher than the lowest end of the bracket, and a feed port is provided on the top surface of the other end of the conveying box, the top end of the feed port is funnel-shaped.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In the utility model, by arranging blades with opposite rotation directions and interlaced with each other on the first auger and the second auger, it can effectively prevent the mineral powder from being blocked during the transportation process, improve the reliability and stability of the transportation device, reduce the downtime and maintenance time caused by blockage, and improve production efficiency.

[0019] 2. In the present invention, by arranging a heater and a heat conducting rod to heat the mineral powder, the mineral powder can be prevented from agglomerating, the fluidity of the mineral powder can be ensured, and the anti-clogging performance of the conveying device can be further improved. At the same time, the uniform heating method can ensure that the mineral powder is heated evenly without local overheating or overcooling, which is beneficial to improving the quality of the mineral powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A side view of an anti-clogging mineral powder conveying device;

[0021] Figure 2 A bottom view of an anti-clogging mineral powder conveying device;

[0022] Figure 3 This is a schematic cross-sectional view of an anti-clogging mineral powder conveying device;

[0023] Figure 4 This is a schematic diagram of the heating component structure of an anti-clogging mineral powder conveying device;

[0024] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0025] In the figure: 1. Conveyor box; 101. Feed port; 102. Discharge port; 103. Transmission chamber; 104. Bracket; 2. Conveying assembly; 201. First auger; 202. Motor; 203. Second auger; 204. Gear set; 205. Sealed bearing; 206. Harmonic reducer; 3. Heater; 301. Heat conducting rod; 302. Docking ring; 303. Power supply line; 304. Connecting ring; 4. Push plate; 401. Spring; 402. Push rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5 , the utility model provides a technical solution:

[0028] A blockage-resistant mineral powder conveying device includes a conveying box 1 and a conveying assembly 2, the conveying assembly including a first auger 201, which is rotatably arranged in the conveying box 1 along its axial direction and extends to the other end of the conveying box 1 along the length direction of the conveying box 1; a second auger 203 is distributed parallel to the first auger 201, is rotatably arranged in the conveying box 1 along its axial direction, and extends to the other end of the conveying box 1 along the length direction of the conveying box 1, and the blades thereon are opposite to the rotation direction of the first auger 201; the blades on the first auger 201 and the second auger 203 are staggered with each other, that is, one of the blades of the first auger 201 and the second auger 203 is located between two adjacent blades on the other.

[0029] When the first auger 201 and the second auger 203 rotate in opposite directions, the first auger 201 pushes the mineral powder to move in one direction, while the second auger 203 pushes the mineral powder in the opposite direction. Since their blades are staggered with each other, that is, the blades of the first auger 201 are located between two adjacent blades on the second auger 203, this structure causes the mineral powder to be constantly stirred and dispersed during the transportation process, making it difficult to form a stable accumulation point.

[0030] On the other hand, the staggered arrangement of the blades increases the complexity of the flow path of the mineral powder. While the mineral powder is pushed by the blade of one auger, it is also affected by the reverse action of the blade of another auger. This complex force condition makes the mineral powder always in a dynamic flow state, and it is not easy to accumulate statically and block the conveying channel.

[0031] From a mechanical point of view, the opposite rotation of the two augers generates a counterbalancing force. When the mineral powder tends to accumulate in a certain direction, the reverse force of the other auger will promptly stop the development of this trend. For example, when a part of the mineral powder tries to accumulate in a corner of the conveying box 1, the auger blade close to it will push it in the opposite direction, and the blade of the other auger will catch it at the appropriate position and continue to push the mineral powder forward. This counterbalancing force allows the mineral powder to always keep flowing in the conveying channel, greatly reducing the possibility of blockage.

[0032] Therefore, by setting blades with opposite rotation directions and interlaced with each other on the first auger 201 and the second auger 203, the mineral powder can be effectively prevented from being blocked during the transportation process, the reliability and stability of the transportation device can be improved, the downtime and maintenance time caused by blockage can be reduced, and production efficiency can be improved.

[0033] The first auger 201 and the second auger 203 are both hollow. A heater 3 is provided at one end of the conveying box 1. A power supply line 303 is provided on the back of the heater 3. Two heat-conducting rods 301 are installed on the heater 3. The heat-conducting rods 301 are adapted to the cavities in the first auger 201 and the second auger 203 and are installed in the cavities.

[0034] Under certain conditions, mineral powder may clump due to moisture, pressure, etc. The fluidity of the agglomerated mineral powder is greatly reduced, which can easily cause blockage during transportation. The heater 3 transfers heat to the hollow first auger 201 and the second auger 203 through the heat-conducting rod 301 to heat the mineral powder inside the auger. Heating can evaporate the moisture in the mineral powder and reduce its humidity, thereby reducing the possibility of agglomeration. Through heating, the moisture is evaporated, the mineral powder particles return to a relatively dry state, the bonding force is weakened, and they become looser and easier to flow under the push of the auger.

[0035] For mineral powder that has already agglomerated, heating can provide enough energy to destroy the agglomerated structure. When the mineral powder is heated, the molecular movement inside it intensifies and the binding force between the particles weakens. Under the rotation and pushing action of the auger, the agglomerated mineral powder is more easily broken up and restored to its normal particle state, thereby ensuring the fluidity of the mineral powder and preventing blockage.

[0036] The first auger 201 and the second auger 203 are both hollow, and the heat conducting rod 301 is adapted to and installed in the cavity of the auger. This design allows heat to be transferred to various parts of the auger more evenly, thereby uniformly heating the mineral powder. Uniform heating can ensure that the mineral powder maintains good fluidity throughout the entire transportation process, avoiding changes in the properties of the mineral powder and blockage problems caused by local overheating or overcooling.

[0037] A motor 202 is mounted on the other end of the conveyor box 1. The first auger 201 or the second auger 203 is fixedly connected to the output shaft of the motor 202. In this embodiment, the first auger 201 is fixedly connected to the output end of the motor 202. A transmission cavity 103 is defined in the sidewall of the other end of the conveyor box 1. One end of the first auger 201 and the second auger 203 are rotatably connected to the transmission cavity 103. A meshing gear set 204 is provided on one end of the first auger 201 and the second auger 203.

[0038] By adopting the above design, the motor 202 can drive the first auger 201 and the second auger 203 to rotate synchronously in opposite directions through the gear set 204 (the gear set 204 is two gears that are externally meshed with each other, and the two gears are fixedly sleeved on the first auger 201 and the second auger 203), thereby reducing the number of driving sources required in the device and reducing production costs.

[0039] Sealed bearings 205 are provided at the connection points between the outer wall of the conveying box 1 and the first auger 201 , the motor 202 and the second auger 203 .

[0040] The sealed bearing 205 can prevent the leakage of mineral powder, ensure the sealing of the conveying device, and reduce environmental pollution.

[0041] A harmonic reducer 206 is also provided between the motor 202 and the sealed bearing 205 .

[0042] The use of the harmonic reducer 206 can make the rotation of the first auger 201 and the second auger 203 more stable, reduce the vibration and noise of the equipment, and extend the service life of the equipment.

[0043] Furthermore, push plates 4 are provided on the parts of the first auger 201 and the second auger 203 located in the transmission chamber 103. The push plates 4 are fixedly connected to the blades on the first auger 201 and the second auger 203. The blades can slide back and forth on the first auger 201 and the second auger 203 (i.e., slide along the axial direction of the auger). A spring 401 is provided between the push plate 4 and the gear set 204, and a push rod 402 is provided on the transmission chamber 103, and a chamfer is provided on the push rod 402.

[0044] By adopting the above design, when the first auger 201 and the second auger 203 rotate relative to each other, the push plate 4 will conflict with the push rod 402, driving the blades thereon to move forward, and then after passing through the push rod 402, it will automatically reset under the drive of the spring 401, thereby changing the spacing between the blades, further increasing the complexity of the flow path of the mineral powder, and improving the anti-blocking effect of the device.

[0045] The first auger 201 and the second auger 203 pass through two sealed bearings 205 on the other end of the conveying box 1. The sealed bearings 205 at this end are fixedly connected with a connecting ring 304. The two ends of the heater 3 are provided with docking rings 302. The docking rings 302 are arranged on the outside of the heat conducting rod 301. The docking rings 302 are threadedly connected to the connecting rings 304.

[0046] The connecting ring 304 is fixed on the sealing bearing 205, and the docking ring 302 is set at both ends of the heater 3. The docking ring 302 is threadedly connected to the connecting ring 304, which facilitates the installation and disassembly of the heater 3. The threaded connection method between the connecting ring 304 and the docking ring 302 makes the installation and disassembly of the heater 3 more convenient, and facilitates the maintenance and inspection of the equipment.

[0047] The bottom surface of the conveying box 1 is provided with a bracket 104, which is spaced apart on both sides of the outer wall of the bottom surface of the conveying box 1. The bracket 104 is provided on the bottom surface of the conveying box 1 to support the conveying device. The rubber pads at both ends of the bracket 104 can play a role in shock absorption and anti-slip.

[0048] The setting of the bracket 104 can ensure the stability of the conveying device, and the shock-absorbing and anti-slip effects of the rubber pad can reduce the vibration and sliding of the equipment, thereby improving the safety of the equipment.

[0049] A discharge port 102 is provided on the bottom surface of one end of the conveying box 1, and the lowest end of the discharge port 102 is higher than the lowest end of the bracket 104. A feed port 101 is provided on the top surface of the other end of the conveying box 1, and the top end of the feed port 101 is funnel-shaped.

[0050] The feed port 101 is arranged on the top surface of the other end of the conveying box 1, and the top is funnel-shaped to facilitate the pouring of mineral powder. The discharge port 102 is arranged on the bottom surface of one end of the conveying box 1, and the mineral powder is discharged from the discharge port 102 under the push of the auger.

[0051] The funnel-shaped feed port 101 can improve the feeding efficiency of the mineral powder and reduce the scattering of the mineral powder. The position of the discharge port 102 is reasonably set so that the mineral powder can be discharged smoothly and will not accumulate in the conveying box 1.

[0052] Working principle:

[0053] Start the motor 202, which drives the first auger 201 or the second auger 203 to rotate through the output shaft. Due to the meshing action of the gear set 204, the first auger 201 and the second auger 203 begin to rotate in the opposite direction. The harmonic reducer 206 between the motor 202 and the sealed bearing 205 plays a role in regulating the speed and increasing the torque, making the rotation of the auger more stable.

[0054] The power supply line 303 is connected to the power supply, and the heater 3 is started. The heater 3 begins to generate heat and evenly transfers the heat to the first auger 201 and the second auger 203 through the heat conducting rod 301, thereby preheating the mineral powder inside the auger to prevent the mineral powder from agglomerating due to moisture or other reasons.

[0055] The mineral powder is poured into the conveying box 1 from the feed port 101. The top of the feed port 101 is funnel-shaped, which facilitates the pouring of the mineral powder, improves the feeding efficiency, and reduces the scattering of the mineral powder. After entering the conveying box 1, the mineral powder falls onto the first auger 201 and the second auger 203. Because the two augers rotate in opposite directions and the blades are intertwined, the mineral powder is constantly stirred and dispersed during the conveying process, making it difficult to form a stable accumulation point.

[0056] Heater 3 continuously heats the mineral powder to evaporate the water in the mineral powder, reduce the humidity, and reduce the possibility of agglomeration. For the mineral powder that has already agglomerated, the heating provides enough energy to destroy the agglomerated structure, making it easier to be broken up under the rotation and pushing action of the auger, restoring it to a normal particle state, ensuring the fluidity of the mineral powder and preventing blockage.

[0057] The mineral powder is transported to one end of the conveying box 1 under the push of the auger and discharged from the discharge port 102.

[0058] In the description of this utility model, the terms "first," "second," "another," and "yet another" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of this utility model, "plurality" means two or more, unless otherwise specifically specified.

[0059] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. In addition, in the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A blockage-resistant mineral powder conveying device, comprising a conveying box (1) and a conveying assembly (2), Its characteristics are: The conveying assembly (2) comprises, A first auger (201) is rotatably disposed in the conveying box (1) along its axial direction and extends along the length direction of the conveying box (1) to the other end of the conveying box (1); The second auger (203) is arranged parallel to the first auger (201), is rotatably arranged in the conveying box (1) along its axial direction, and extends along the length direction of the conveying box (1) to the other end of the conveying box (1), and the blades thereon rotate in the opposite direction to the first auger (201); The blades on the first auger (201) and the second auger (203) are staggered.

2. The anti-clogging mineral powder conveying device according to claim 1, characterized in that: The first auger (201) and the second auger (203) are both hollow, a heater (3) is provided at one end of the conveying box (1), two heat conducting rods (301) are installed on the heater (3), and the heat conducting rods (301) are adapted to the cavities in the first auger (201) and the second auger (203) and are installed in the cavities.

3. The anti-clogging mineral powder conveying device according to claim 2, characterized in that: A motor (202) is installed at the other end of the conveying box (1), and the first auger (201) or the second auger (203) is fixedly connected to the output shaft of the motor (202). A transmission cavity (103) is opened in the side wall of the other end of the conveying box (1), and one end of the first auger (201) and the second auger (203) are rotatably connected in the transmission cavity (103). A meshing gear set (204) is provided on one end of the first auger (201) and the second auger (203).

4. The anti-clogging mineral powder conveying device according to claim 3, characterized in that: A push plate (4) is provided on the portion of the first auger (201) and the second auger (203) located in the transmission chamber (103), the push plate (4) is fixedly connected to the blades on the first auger (201) and the second auger (203), and the blades can slide back and forth on the first auger (201) and the second auger (203), a spring (401) is provided between the push plate (4) and the gear set (204), and a push rod (402) is provided on the transmission chamber (103), and a chamfer is provided on the push rod (402).

5. The anti-clogging mineral powder conveying device according to claim 3, characterized in that: Sealed bearings (205) are provided at the connection points between the outer wall of the conveying box (1) and the first auger (201), the motor (202) and the second auger (203).

6. The anti-clogging mineral powder conveying device according to claim 5, characterized in that: A harmonic reducer (206) is also provided between the motor (202) and the sealed bearing (205).

7. The anti-clogging mineral powder conveying device according to claim 6, characterized in that: The first auger (201) and the second auger (203) pass through two sealed bearings (205) on the other end of the conveying box (1), and the sealed bearings (205) at this end are fixedly connected to a connecting ring (304). The two ends of the heater (3) are provided with docking rings (302), and the docking rings (302) are arranged on the outside of the heat conducting rod (301). The docking rings (302) are threadedly connected to the connecting rings (304).

8. The anti-clogging mineral powder conveying device according to claim 7, characterized in that: The bottom surface of the transport box (1) is provided with a bracket (104), and the bracket (104) is spaced apart on both sides of the outer wall of the bottom surface of the transport box (1), and rubber pads are provided at both ends of the bracket (104).

9. The anti-clogging mineral powder conveying device according to claim 8, characterized in that: A discharge port (102) is provided on the bottom surface of one end of the conveying box (1), and the lowest end of the discharge port (102) is higher than the lowest end of the bracket (104). A feed port (101) is provided on the top surface of the other end of the conveying box (1), and the top end of the feed port (101) is funnel-shaped.

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