Volumetric coal feeder capable of avoiding blockage

Abstract

The utility model relates to the field of coal, in particular to a positive displacement coal feeder capable of avoiding blockage. The utility model discloses a positive displacement coal feeder capable of pushing out coal in a stock bin, reducing the risk of coal blockage and continuously supplying the coal according to quantity. A positive displacement coal feeder capable of avoiding blockage comprises an outer frame, a charging hopper, a material pushing box and the like. A charging hopper is arranged on the outer frame, and a pushing box is fixedly connected to the inner wall of the charging hopper. The telescopic rod of the air cylinder drives the discharging plate and the longitudinal racks to move upwards, the discharging plate does not block the discharging port of the charging hopper any more, coal above the baffle falls off from the discharging port of the charging hopper, the telescopic rod of the air cylinder contracts, the gear drives the two transverse racks and the baffle to move in the direction away from the support, and the coal is discharged from the discharging port of the charging hopper. And the discharging plate blocks the discharging port of the charging hopper again, the baffle blocks the coal above, the operation is repeated, the telescopic rod of the air cylinder intermittently stretches and contracts, and therefore the baffle and the discharging plate are intermittently opened and closed, and then the coal can be intermittently supplied according to the quantity.

Description

Technical Field

[0001] The utility model relates to the field of coal, in particular to a volumetric coal feeder which can avoid blockage. Background Art

[0002] In the production of coal, coal feeder is an indispensable equipment. Its main function is to take coal from the coal yard or coal storage bin and supply it to the coal processing production line. Coal feeder improves the efficiency of coal production and effectively controls coal dust, thereby protecting the environment and reducing the consumption of human resources. Therefore, coal feeder is needed in coal production. Coal feeder includes gravity coal feeder and volumetric coal feeder. Volumetric coal feeder is more widely used.

[0003] During the coal feeding stage of the old-style volumetric coal feeder, after the coal enters the silo, a large amount of coal above the silo forms a strong pressure, thereby compacting the coal in the silo, causing the coal to be blocked in the silo, making it difficult to clear the coal inside the silo, resulting in continuous feeding and reduced coal feeding efficiency. Utility Model Content

[0004] In view of this, the utility model provides a volumetric coal feeder capable of pushing coal out of a silo, reducing the risk of coal blockage and continuously supplying coal in quantity to avoid blockage.

[0005] The technical scheme of the utility model is: a volumetric coal feeder to avoid blockage, including an outer frame, a charging hopper, a pushing box, a bracket, a discharging plate, a cylinder, a longitudinal rack, a gear, a transverse rack and a baffle, a charging hopper is arranged on the outer frame, a large feeding port is opened at the head of the charging hopper, a small discharging port is opened at the tail of the charging hopper, the lower part of the charging hopper is arranged in an arc shape, a pushing box is fixedly connected to the inner wall of the charging hopper, a bracket is fixedly connected to the discharging port of the charging hopper, a discharging plate is slidably connected to the bracket, and the discharging plate is connected to the charging hopper The discharging port of the hopper is in contact with the discharging port of the hopper, a cylinder is fixedly connected to the lower part of the bracket, the telescopic rod of the cylinder is fixedly connected to the bottom of the discharging plate, the top of the discharging plate is fixedly connected to a longitudinal rack, the top of the bracket is rotatably connected to a gear, the longitudinal rack and the gear are meshed, and a baffle is slidably connected to the lower part of the charging hopper, the baffle passes through one side of the charging hopper, and two transverse racks are fixedly connected to one side of the baffle close to the bracket, the two transverse racks are symmetrically arranged, and two cylinders are fixedly connected between the two transverse racks, and the two transverse racks are meshed with the gears.

[0006] In one of the embodiments, it also includes a fixed frame, a guide rod, a push rod and a movable plate. The baffle is fixedly connected to the fixed frame on one side close to the bracket, and the guide rod is rotatably connected to the fixed frame. The lower part of the guide rod is located between the two cylinders of the two transverse racks. A vertical groove is opened on the upper part of the guide rod. The lower part of the loading hopper is slidably connected to the push rod, which is slidably connected to the vertical groove on the upper part of the guide rod, and the push rod is fixedly connected to the movable plate on the side close to the pushing box.

[0007] In one of the embodiments, a rake plate is further included. The bottom of the guide rod is fixedly connected with the rake plate, and the rake plate passes through the lower part of the charging hopper.

[0008] The beneficial effect is: the utility model drives the discharge plate and the longitudinal rack to move upward through the telescopic rod of the cylinder, and the discharge plate no longer blocks the discharge port of the charging hopper, and the gear drives the two transverse racks and the baffle to move to the side close to the bracket, and the coal above the baffle falls from the discharge port of the charging hopper, and the telescopic rod of the cylinder contracts, and the gear drives the two transverse racks and the baffle to move away from the bracket, and the discharge plate blocks the discharge port of the charging hopper again, and the baffle blocks the coal above, and so on and so forth, and the telescopic rod of the cylinder intermittently extends and contracts, so that the baffle and the discharge plate are intermittently opened and closed, and thus the coal can be intermittently supplied in quantity.

[0009] When the two lateral racks and the baffle move toward the bracket, the guide rod will swing to a certain angle, and the upper part of the guide rod will drive the push rod and the movable plate to move away from the bracket, thereby pushing the coal above the charging hopper to prevent the risk of coal blockage and improve the coal feeding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the first three-dimensional structure of the utility model.

[0011] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model.

[0012] Figure 3 This is a schematic diagram of the second three-dimensional structure of the utility model.

[0013] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model.

[0014] Markings in the figure are: 1-outer frame, 2-loading hopper, 3-pushing box, 4-bracket, 5-discharging plate, 51-cylinder, 6-longitudinal rack, 7-gear, 8-transverse rack, 9-baffle, 10-fixed frame, 11-guide rod, 12-push rod, 13-movable plate, 14-raking plate. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] Example 1: A volumetric coal feeder to avoid blockage, such as Figure 1-Figure 4 As shown, it includes an outer frame 1, a charging hopper 2, a pushing box 3, a bracket 4, a discharging plate 5, a cylinder 51, a longitudinal rack 6, a gear 7, a transverse rack 8 and a baffle 9. The outer frame 1 is provided with a charging hopper 2, the head of the charging hopper 2 is provided with a large feed inlet, the tail of the charging hopper 2 is provided with a small discharging port, the lower part of the charging hopper 2 is arranged in an arc shape, the inner wall of the charging hopper 2 is connected with the pushing box 3 by bolts, the discharging port of the charging hopper 2 is connected with the bracket 4 by bolts, the discharging plate 5 is slidably connected to the bracket 4, the discharging plate 5 is in contact with the discharging port of the charging hopper 2, and the lower part of the bracket 4 A cylinder 51 is connected by bolts, and the telescopic rod of the cylinder 51 is fixedly connected to the bottom of the discharge plate 5. The top of the discharge plate 5 is connected with a longitudinal rack 6 by bolts. The top of the bracket 4 is rotatably connected with a gear 7, and the longitudinal rack 6 is meshed with the gear 7. A baffle 9 is slidably connected to the lower part of the charging hopper 2. The baffle 9 passes through one side of the charging hopper 2. The side of the baffle 9 close to the bracket 4 is connected with two transverse racks 8 by bolts. The two transverse racks 8 are symmetrically arranged, and two cylinders are connected between the two transverse racks 8 by bolts. The two transverse racks 8 are meshed with the gear 7.

[0017] At first, the discharge plate 5 blocks the discharge port of the charging hopper 2, and the baffle 9 blocks the middle of the charging hopper 2. First, the staff pours coal from the feed port of the charging hopper 2, and then the staff starts the cylinder 51, and the telescopic rod of the cylinder 51 extends, and the telescopic rod of the cylinder 51 drives the discharge plate 5 and the longitudinal rack 6 to move upward, and the discharge plate 5 is separated from the discharge port of the charging hopper 2, and the longitudinal rack 6 drives the gear 7 to rotate, and the gear 7 drives the two transverse racks 8 and the baffle 9 to move to the side close to the bracket 4. During the movement of the baffle 9, the coal above the baffle 9 falls from the discharge port of the charging hopper 2, so that the coal in the charging hopper 2 stops. When stopping the falling, the staff adjusts the cylinder 51 to shrink the telescopic rod of the cylinder 51, and the telescopic rod of the cylinder 51 drives the discharge plate 5 and the longitudinal rack 6 to move downward, and the discharge plate 5 blocks the discharge port of the charging hopper 2 again, and the longitudinal rack 6 drives the gear 7 to rotate in the opposite direction, and the gear 7 drives the two transverse racks 8 and the baffle 9 to move away from the bracket 4, and the baffle 9 is reset, and the baffle 9 blocks the coal again, and so on and so forth, and the telescopic rod of the cylinder 51 extends and contracts intermittently, so that the baffle 9 and the discharge plate 5 open and close intermittently, so that the coal can be supplied according to the amount; after all the coal is poured out, the staff closes the cylinder 51.

[0018] Embodiment 2: Based on embodiment 1, Figure 1-Figure 4As shown, it also includes a fixed frame 10, a guide rod 11, a push rod 12 and a movable plate 13. The side of the baffle 9 close to the bracket 4 is connected to the fixed frame 10 by bolts. The guide rod 11 is rotatably connected to the fixed frame 10. The lower part of the guide rod 11 is located between the two cylinders of the two transverse racks 8. A vertical groove is opened on the upper part of the guide rod 11. The lower part of the loading hopper 2 is slidably connected to the push rod 12. The push rod 12 is slidably connected to the vertical groove on the upper part of the guide rod 11. The guide rod 11 is perpendicular to the push rod 12. The side of the push rod 12 close to the push box 3 is connected to the movable plate 13 by bolts. The movable plate 13 is located above the baffle 9.

[0019] When the two transverse racks 8 and the baffle 9 move toward the direction approaching the bracket 4, the two cylinders between the two transverse racks 8 will pull the lower part of the guide rod 11, causing the guide rod 11 to swing at a certain angle, and the upper part of the guide rod 11 drives the push rod 12 and the movable plate 13 to move away from the bracket 4, thereby causing the movable plate 13 to push the coal above the charging hopper 2, thereby reducing the risk of coal blockage, enabling continuous coal supply and improving coal feeding efficiency.

[0020] Embodiment 3: Based on embodiment 2, Figure 1-Figure 4 As shown, a rake plate 14 is also included. The bottom of the guide rod 11 is connected to the rake plate 14 through bolts, and the rake plate 14 passes through the lower part of the charging hopper 2.

[0021] When the lower portion of the guide rod 11 moves toward the bracket 4, the lower portion of the guide rod 11 drives the raking plate 14 to also move toward the bracket 4, which is beneficial for raking out the coal stagnant at the discharge port of the charging hopper 2, thereby further improving the coal feeding efficiency.

[0022] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

1. A volumetric coal feeder for avoiding blockage, characterized in that: The utility model comprises an outer frame (1), a charging hopper (2), a pushing box (3), a bracket (4), a discharging plate (5) and a cylinder (51). The outer frame (1) is provided with a charging hopper (2). The head of the charging hopper (2) is provided with a large feeding port. The tail of the charging hopper (2) is provided with a small discharging port. The lower part of the charging hopper (2) is arranged in an arc shape. The inner wall of the charging hopper (2) is fixedly connected with a pushing box (3). The discharging port of the charging hopper (2) is fixedly connected with a bracket (4). The discharging plate (5) is slidably connected with the bracket (4). The discharging plate (5) contacts with the discharging port of the charging hopper (2). The lower part of the bracket (4) is fixedly connected with a cylinder (51). The telescopic rod of the cylinder (51) is fixedly connected with the bottom of the discharging plate (5).

2. A volumetric coal feeder for avoiding blockage according to claim 1, characterized in that: The invention also comprises a longitudinal rack (6), a gear (7), a transverse rack (8) and a baffle (9); the top of the discharge plate (5) is fixedly connected with the longitudinal rack (6); the top of the bracket (4) is rotatably connected with the gear (7); the longitudinal rack (6) and the gear (7) are meshed; the lower part of the charging hopper (2) is slidably connected with the baffle (9); the baffle (9) passes through one side of the charging hopper (2); the side of the baffle (9) close to the bracket (4) is fixedly connected with two transverse racks (8); the two transverse racks (8) are symmetrically arranged; two cylinders are fixedly connected between the two transverse racks (8); and the two transverse racks (8) are meshed with the gear (7).

3. A volumetric coal feeder for avoiding blockage according to claim 2, characterized in that: The invention also comprises a fixed frame (10), a guide rod (11), a push rod (12) and a movable plate (13); the baffle (9) is fixedly connected to the fixed frame (10) on one side close to the bracket (4); the fixed frame (10) is rotatably connected to the guide rod (11); the lower part of the guide rod (11) is located between two cylinders of two transverse racks (8); the upper part of the guide rod (11) is provided with a vertical groove; the lower part of the charging hopper (2) is slidably connected to the push rod (12); the push rod (12) is slidably connected to the vertical groove on the upper part of the guide rod (11); the push rod (12) is fixedly connected to the movable plate (13) on one side close to the pushing box (3).

4. A volumetric coal feeder for avoiding blockage according to claim 3, characterized in that: It also includes a raking plate (14), the bottom of the guide rod (11) is fixedly connected with the raking plate (14), and the raking plate (14) passes through the lower part of the charging hopper (2).

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