Feeding device for pellet production

Abstract

The utility model relates to the technical field of feeding devices, and discloses a feeding device for pellet production, which comprises a mounting bracket, a plurality of transmission rollers are rotatably connected to the mounting bracket at equal intervals, a conveying belt is sleeved on the outer walls of the plurality of transmission rollers, and the end part of one transmission roller penetrates through the mounting bracket and then is coaxially connected with a motor I; a group of mounting plates are integrally formed at the rear end of the mounting bracket, a feeding assembly is mounted on the group of mounting plates, a group of extension arms are fixedly welded to the bottoms of the group of mounting plates, a rotating rod is rotatably connected between the group of extension arms, a cam is coaxially and fixedly mounted in the middle of the rotating rod, and one end of the rotating rod penetrates through the extension arms and then is coaxially connected with a second motor; the other end of the rotating rod penetrates through the extension arm and then is coaxially and fixedly connected with a driving gear. An original gravity detection sensor and an original hydraulic cylinder are replaced by a mechanical structure, the stability of the device is enhanced, and parts are convenient to maintain and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to a feeding device for pellet production. Background Art

[0002] Oxidized pellets are an important method for agglomerating fine ore. They possess excellent cold strength, reducibility, and particle size composition. In the steel industry, pellets, like sintered ore, are important blast furnace charges, forming a superior charge structure. They are also used in non-ferrous metal smelting. During the production process, oxidized pellets require the material to be sintered in a belt sintering machine to form preliminary pellets. This process requires feeding the belt sintering machine with a feeding device. Existing feeding equipment typically uses a single feeding method, which is ineffective in adjusting the material feed rate and makes it difficult to ensure uniform material distribution on the conveyor belt surface.

[0003] An existing feeding device for producing oxidized pellets (Announcement No.: CN212514818U) has at least the following disadvantages: the device adopts a method of matching an inner shell with an outer shell, and by assembling a gravity detection sensor between the outer shell and the inner shell, the weight of the material entering the inner shell can be detected, which is convenient for feeding quantitative materials into the belt sintering machine. A material guide rack is provided in the feeding assembly arranged on the top of the inner shell, and the material entering the inner shell is evenly distributed through the material guide rack, so that the material is evenly distributed to the conveyor belt of the belt sintering machine below when passing through the discharge hole, ensuring uniform distribution of the material and improving the subsequent sintering production quality of the material by the belt sintering machine. However, the gravity sensor used in the device for detection also requires the use of a large number of electronic components such as PLC controllers. During the production and transportation of pellets, there is usually a large amount of dust and high temperature environment, which will have a certain impact on the service life of the electronic components. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a feeding device for pellet production.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A feeding device for pellet production includes a mounting bracket, a plurality of transmission rollers are rotatably connected to the mounting bracket, a conveyor belt is commonly sleeved on the outer walls of the plurality of transmission rollers, an end of one of the transmission rollers passes through the mounting bracket and is coaxially connected to a first motor, a plurality of groups of support feet are equidistantly installed on the bottom surface of the mounting bracket, a group of mounting plates are integrally formed at the rear end of the mounting bracket, a feeding assembly is installed on a group of mounting plates, a group of extension arms are welded and fixed to the bottom of a group of mounting plates, a rotating rod is rotatably connected between the groups of extension arms, a cam is coaxially fixedly installed in the middle of the rotating rod, one end of the rotating rod passes through the extension arm and is coaxially connected to a second motor, and the other end of the rotating rod passes through the extension arm and is coaxially fixedly connected to a driving gear.

[0007] As a further solution of the present invention, the feeding assembly includes a storage cylinder, which is fixedly connected to a set of mounting plates. A moving tube is integrally formed under the storage cylinder, a storage trough is integrally formed on the rear side of the moving tube, and a discharge pipe is welded and fixed to the bottom end of the moving tube.

[0008] As a further solution of the present invention, a feeding box is installed in a sliding connection inside the moving tube. The outer wall size of the feeding box is adapted to the inner wall size of the moving tube. A discharge port is provided on the front end face of the feeding box. Two sliding rods are integrally formed at the bottom end of the feeding box. The material stored in the feeding box is discharged from the discharge port into the discharge tube.

[0009] As a further solution of the present invention, the two sliding rods pass through the bottom wall of the moving tube and are welded and fixed with a force-bearing arc plate. The outer walls of the two sliding rods are both sleeved with spring 1, and the top surface of spring 1 abuts against the bottom surface of the moving tube. Through the cooperation of the cam and spring 1, the feeding box can realize the up and down reciprocating motion in the discharge tube.

[0010] As a further solution of the present invention, two springs 2 are fixedly installed in the storage tank, and the front ends of the two springs 2 are fixedly connected to a material blocking slider, which is used to separate the storage cylinder and the motion tube.

[0011] As a further solution of the present invention, a feeding wheel is rotatably connected in the discharge pipe, and the rotating shaft of the feeding wheel passes through the side wall of the discharge pipe and is coaxially connected to a driven gear.

[0012] As a further solution of the present invention, a transmission belt is jointly sleeved on the outer walls of the driven gear and the driving gear, the outer wall of the force-bearing arc plate abuts against the outer wall of the cam, and the second motor drives the driving gear to rotate, and the driving gear drives the driven gear and the feeding wheel to rotate synchronously through the transmission belt.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This device realizes the up and down reciprocating motion of the feeding box in the discharge pipe through the cooperation of the cam and the spring 1, and replaces the gravity detection sensor and the hydraulic cylinder with a stable and reliable mechanical structure. When the feeding box moves upward, the blocking slider will be pushed into the storage slot. At this time, the spring 2 is compressed, and the material in the storage cylinder enters the feeding box; when the feeding box moves downward, the spring 2 releases its elastic force, and the spring 2 pushes the blocking slider out of the storage slot. The blocking slider separates the storage cylinder and the moving tube. When the feeding box moves to the bottom end, the material in the feeding box enters the discharge pipe from the discharge port, and the motor 2 drives the driving gear to rotate, and indirectly drives the driven gear and the feeding wheel to rotate synchronously through the transmission belt, and the feeding wheel evenly distributes the material onto the conveyor belt. This device replaces the original gravity detection sensor and hydraulic cylinder with a stable and reliable mechanical structure, thereby enhancing the stability of the device and making it easy to repair and replace parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a feeding device for pellet production proposed by the present invention;

[0016] Figure 2 This is a cross-sectional view of the overall structure of a feeding device for pellet production proposed by the present invention;

[0017] Figure 3 This is an exploded view of the overall structure of a feeding device for pellet production proposed by the present invention;

[0018] Figure 4 This is a schematic structural diagram of a feeding component of a feeding device for pellet production proposed by the present invention.

[0019] In the figure: 1. Mounting bracket; 11. Drive roller; 12. Conveyor belt; 13. Motor 1; 14. Support foot; 15. Mounting plate; 16. Extension arm; 2. Feeding assembly; 21. Storage cylinder; 211. Moving tube; 212. Storage trough; 213. Discharge pipe; 22. Feeding box; 221. Discharge port; 222. Slide rod; 223. Forced arc plate; 23. Spring 1; 24. Spring 2; 25. Material blocking slider; 26. Feeding wheel; 27. Driven gear; 3. Rotating rod; 31. Motor 2; 4. Cam; 5. Driving gear; 6. Transmission belt. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean 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, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] Reference Figures 1-4 A feeding device for pellet production includes a mounting bracket 1, on which a plurality of transmission rollers 11 are rotatably connected at equal intervals. A conveyor belt 12 is commonly sleeved on the outer walls of the plurality of transmission rollers 11, one end of the transmission roller 11 passes through the mounting bracket 1 and is coaxially connected to a motor 13. A plurality of groups of supporting feet 14 are equidistantly installed on the bottom surface of the mounting bracket 1. A group of mounting plates 15 are integrally formed at the rear end of the mounting bracket 1, a feeding assembly 2 is installed on a group of mounting plates 15, a group of extension arms 16 are welded and fixed to the bottom of a group of mounting plates 15, a rotating rod 3 is rotatably connected between a group of extension arms 16, a cam 4 is coaxially fixedly installed on the middle part of the rotating rod 3, one end of the rotating rod 3 passes through the extension arm 16 and is coaxially connected to a motor 2 31, and the other end of the rotating rod 3 passes through the extension arm 16 and is coaxially fixedly connected to a driving gear 5.

[0024] In this embodiment, the storage cylinder 21 is fixedly connected to a set of mounting plates 15 , a moving tube 211 is integrally formed below the storage cylinder 21 , a storage tank 212 is integrally formed on the rear side of the moving tube 211 , and a discharge tube 213 is welded and fixed to the bottom end of the moving tube 211 .

[0025] In this embodiment, a feeding box 22 is installed in a sliding connection inside the moving tube 211. The outer wall size of the feeding box 22 is adapted to the inner wall size of the moving tube 211. A discharge port 221 is provided on the front end face of the feeding box 22. Two sliding rods 222 are integrally formed at the bottom end of the feeding box 22. The material stored in the feeding box 22 is discharged from the discharge port 221 into the discharge tube 213.

[0026] In this embodiment, the two sliding rods 222 pass through the bottom wall of the moving tube 211 and are welded and fixed with a force-bearing arc plate 223. The outer walls of the two sliding rods 222 are both sleeved with a spring 23. The top surface of the spring 23 abuts against the bottom surface of the moving tube 211. Through the cooperation of the cam 4 and the spring 23, the feeding box 22 can realize the up and down reciprocating motion in the discharge tube 213.

[0027] In this embodiment, two springs 24 are fixedly installed in the storage tank 212 , and a material blocking slider 25 is fixedly connected to the front end of the two springs 24 . The material blocking slider 25 is used to separate the storage cylinder 21 and the motion tube 211 .

[0028] In this embodiment, a feeding wheel 26 is rotatably connected in the discharge pipe 213 , and the rotation shaft of the feeding wheel 26 passes through the side wall of the discharge pipe 213 and is coaxially connected to a driven gear 27 .

[0029] In this embodiment, the driven gear 27 and the outer wall of the driving gear 5 are jointly sleeved with a transmission belt 6, the outer wall of the cam 4 is in contact with the outer wall of the force-bearing arc plate 223, and the motor 2 31 drives the driving gear 5 to rotate, and the driving gear 5 drives the driven gear 27 and the feeding wheel 26 to rotate synchronously through the transmission belt 6.

[0030] From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects: first, the material is poured into the storage cylinder 21, the motor 1 13 and the motor 2 31 are started, and the motor 13 drives the conveyor belt 12 to move through the transmission roller 11;

[0031] The motor 2 31 drives the cam 4 to rotate through the rotating rod 3. The cam 4 cooperates with the spring 1 23 to realize the up and down reciprocating motion of the feeding box 22 in the discharge pipe 213. When the feeding box 22 moves upward, it pushes the blocking slider 25 into the storage groove 212. At this time, the spring 24 is compressed, and the material in the storage cylinder 21 enters the feeding box 22.

[0032] When the feeding box 22 moves downward, the spring 24 releases its elastic force, and the spring 24 pushes the blocking slider 25 out of the storage groove 212. The blocking slider 25 separates the storage cylinder 21 and the moving tube 211. When the feeding box 22 moves to the bottom, the material in the feeding box 22 enters the discharge tube 213 through the discharge port 221.

[0033] The second motor 31 drives the driving gear 5 to rotate, and indirectly drives the driven gear 27 and the feeding wheel 26 to rotate synchronously through the transmission belt 6. The feeding wheel 26 evenly distributes the material onto the conveyor belt 12, and the cycle is repeated. At this point, the device is completed.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for pellet production, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is equidistantly rotatably connected to a plurality of transmission rollers (11), and the outer walls of the plurality of transmission rollers (11) are jointly sleeved with a conveyor belt (12), one end of the transmission roller (11) passes through the mounting bracket (1) and is coaxially connected to a motor 1 (13), and a plurality of groups of support legs (14) are equidistantly mounted on the bottom surface of the mounting bracket (1), and a group of mounting plates (15) are integrally formed at the rear end of the mounting bracket (1), a feeding assembly (2) is mounted on one group of the mounting plates (15), a group of extension arms (16) are welded and fixed to the bottom of one group of the mounting plates (15), and a rotating rod (3) is rotatably connected between the groups of extension arms (16), a cam (4) is coaxially fixedly mounted on the middle of the rotating rod (3), one end of the rotating rod (3) passes through the extension arm (16) and is coaxially connected to a motor 2 (31), and the other end of the rotating rod (3) passes through the extension arm (16) and is coaxially fixedly connected to a driving gear (5).

2. A feeding device for pellet production according to claim 1, characterized in that: The feeding assembly (2) includes a storage cylinder (21), the storage cylinder (21) is fixedly connected and installed with a group of the mounting plates (15), a moving tube (211) is integrally formed below the storage cylinder (21), a storage tank (212) is integrally formed on the rear side of the moving tube (211), and a discharge tube (213) is welded and fixed to the bottom end of the moving tube (211).

3. A feeding device for pellet production according to claim 2, characterized in that: A feeding box (22) is slidably connected and installed in the moving tube (211). The outer wall size of the feeding box (22) is adapted to the inner wall size of the moving tube (211). A discharge port (221) is provided on the front end surface of the feeding box (22). Two sliding rods (222) are integrally formed at the bottom end of the feeding box (22).

4. A feeding device for pellet production according to claim 3, characterized in that: The two sliding rods (222) pass through the bottom wall of the moving tube (211) and are then welded and fixed with a force-bearing arc plate (223). The outer walls of the two sliding rods (222) are both sleeved with a spring 1 (23), and the top surface of the spring 1 (23) abuts against the bottom surface of the moving tube (211).

5. The feeding device for pellet production according to claim 2, characterized in that: Two springs 2 (24) are fixedly installed in the storage tank (212), and the front ends of the two springs 2 (24) are fixedly connected and installed with a material blocking slider (25).

6. The feeding device for pellet production according to claim 4, characterized in that: A feeding wheel (26) is rotatably connected in the discharge pipe (213), and the rotation shaft of the feeding wheel (26) passes through the side wall of the discharge pipe (213) and is coaxially connected to a driven gear (27).

7. The feeding device for pellet production according to claim 6, characterized in that: The driven gear (27) and the outer wall of the driving gear (5) are jointly sleeved with a transmission belt (6), and the stressed arc plate (223) abuts against the outer wall of the cam (4).

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