A spiral air-locking feeding device

Abstract

The present invention proposes a spiral air-locking feeding device, comprising a load-bearing frame and a belt conveyor, wherein the belt conveyor is provided below the load-bearing frame, and the load-bearing frame is provided with an opening, a circular load-bearing plate is provided below the opening, and the outer sides of the circular load-bearing plate are connected to the load-bearing frame, a material introducing cylinder is provided in the circular load-bearing plate, and a feeding auger is installed at the lower end of the material introducing cylinder, a first feeding port is provided on the material introducing auger and the first feeding port is connected to the material introducing cylinder, a material guide groove is installed at the output end of the material introducing auger, and an annular limiting plate is installed at the outer side of the material introducing cylinder. In this spiral air-locking feeding device, a feeding auger is provided below the material introducing cylinder, and the material introducing cylinder is slidably connected to the load-bearing suspension rod through a spring. When feeding, the feeding auger and the spring cooperate to play a buffering role, so as to reduce damage to the belt, improve the service life of the belt, and reduce the cost of equipment maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of conveying and feeding equipment, and in particular to a spiral air-locking feeding device. Background Art

[0002] The spiral air-locking feeding device is a kind of spiral feeding device, which is usually used in various industrial equipment to complete material feeding operations. For example, in mining operations, it is often necessary to transport ore, steel, etc. in the mine, and during the transportation process, due to the long transportation distance, it is necessary to transfer. During the transfer, the transfer operation needs to be completed through the drop hopper for subsequent transportation;

[0003] However, the existing feeding device usually adopts the setting of a guide barrel, so that the materials on one group of belt conveyors pass through the guide barrel and directly fall onto another group of belt conveyors. During the process, since the materials will directly hit the belts on the belt conveyors, the long-term impact will accelerate the wear of the belts, thereby reducing the service life of the belts and increasing the equipment maintenance cost. In addition, the dust caused by the impact of the falling materials causes environmental pollution. Therefore, the present invention proposes a spiral air-locking feeding device to solve the problems existing in the prior art. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to propose a spiral air-locking feeding device, which has a feeding auger below the feed cylinder, and the feed cylinder is slidably connected to the load-bearing hanger through a spring. When feeding, the feeding auger and the spring cooperate to play a buffering role, so as to reduce damage to the belt, increase the service life of the belt, and reduce the cost of equipment maintenance. At the same time, the material is slowly output through the auger, which greatly reduces the impact of dust. The auger outlet and the upper feed outlet are separated by the auger and the material to prevent the impact of dust from being sucked back to the upper feed outlet due to the chimney effect.

[0005] To achieve the purpose of the present invention, the present invention is implemented through the following technical scheme: a spiral air-locking feeding device, comprising a load-bearing frame and a belt conveyor, wherein a belt conveyor is arranged below the load-bearing frame, and an opening is arranged on the load-bearing frame, a circular load-bearing plate is arranged below the opening, and the outer sides of the circular load-bearing plates are connected to the load-bearing frame, a material guiding cylinder is arranged in the circular load-bearing plate, and a feeding auger is installed at the lower end of the material guiding cylinder, a first feeding port is arranged on the feeding auger and the first feeding port is connected with the material guiding cylinder, a material guiding trough is installed at the output end of the feeding auger, an annular limiting plate is installed on the outer side of the material guiding cylinder, a load-bearing suspension rod is installed on the load-bearing frame above the annular limiting plate, and a plurality of groups of load-bearing suspension rods are equidistantly arranged, the load-bearing suspension rod is slidably connected with the annular limiting plate, and a load-bearing block is installed at the lower end of the load-bearing suspension rod, the upper end of the load-bearing block is connected with the annular limiting plate by a spring, and the spring is sleeved on the load-bearing suspension rod.

[0006] A further improvement lies in that: a dust collection housing is installed in the opening through a bracket, the lower end of the dust collection housing extends into the material guiding cylinder, a second feeding port is arranged on the left side above the dust collection housing, a dust collection hood is installed on the dust collection housing above the right side of the second feeding port, and the upper end of the dust collection hood is connected to an external dust collection device through a pipeline.

[0007] A further improvement lies in that: one end of the annular limiting plate away from the material guiding cylinder extends above the loop-shaped load-bearing plate, and a gravity sensor is arranged between the annular limiting plate and the loop-shaped load-bearing plate, the number of the gravity sensors is the same as that of the load-bearing suspension rods, and the position of each group of gravity sensors corresponds to the position of its corresponding group of load-bearing suspension rods.

[0008] A further improvement lies in that: the diameter of the output end of the material conveying auger is larger than that of the feeding end, and the material conveying auger is inclined.

[0009] A further improvement lies in that: the cross-section of the material guiding groove is an inverted "凵" shape, and the width of the material guiding groove is smaller than the width of the belt in the belt conveyor.

[0010] A further improvement lies in that: both sides below the loop-shaped load-bearing plate are connected to the load-bearing frame body through auxiliary support plates.

[0011] A further improvement lies in that: the upper end of the gravity sensor is connected to the annular limiting plate, and the lower end of the gravity sensor contacts the loop-shaped load-bearing plate.

[0012] The beneficial effects of the present invention are as follows: in this kind of spiral air-lock feeding device, a material conveying auger is arranged below the material guiding cylinder, and the material guiding cylinder is slidably connected to the load-bearing suspension rods through springs. When feeding, through the cooperation of the material conveying auger and the springs, a buffering effect is achieved, so as to reduce the damage to the belt, improve the service life of the belt, and reduce the cost of equipment maintenance. At the same time, the material is slowly output through the auger, greatly reducing the impact dust. And because there is an auger and material blocking between the auger discharge port and the upper feeding port, it avoids the impact dust being sucked back to the upper feeding port due to the chimney effect. In addition, when feeding, the weight of the material will increase the downward pressure of the material conveying auger, so that the springs contract, and then the lower part of the material guiding groove presses tightly against the belt of the belt conveyor, so as to improve the accuracy of feeding and avoid the material falling outside the belt. At the same time, when not feeding, the springs play a supporting role for the material guiding cylinder, so that the bottom of the material guiding groove is separated from the belt of the belt conveyor and does not contact the belt, so as to better reduce the belt wear. In addition, through the cooperation of the arranged dust collection housing and the dust collection hood, the dust generated in the feeding process is sucked, so as to improve the comfort of the working environment. By setting the gravity sensors, the rotation speed of the auger can be adjusted according to the sensed weight, so as to avoid the situation of auger blockage. Description of the Drawings

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a front view structural schematic diagram of the present invention.

[0015] Figure 2 The present invention Figure 1 Enlarged schematic diagram of part A.

[0016] Figure 3 The present invention Figure 1 Enlarged schematic diagram of part B.

[0017] Among them: 1. load-bearing frame; 2. opening; 3. circular load-bearing plate; 4. material guide tube; 5. material conveying auger; 6. first feed port; 7. material guide trough; 8. annular limit plate; 9. load-bearing suspension rod; 10. load-bearing block; 11. spring; 12. dust collection shell; 13. second feed port; 14. dust collection hood; 15. gravity sensor; 16. auxiliary support plate; 101. belt conveyor. DETAILED DESCRIPTION

[0018] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] according to Figure 1 , 2As shown in Figure 3, this embodiment proposes a spiral air-locking feeding device, including a load-bearing frame 1 and a belt conveyor 101, wherein the belt conveyor 101 is provided below the load-bearing frame 1, and the load-bearing frame 1 is provided with an opening 2, a circular load-bearing plate 3 is provided below the opening 2, and the outer sides of the circular load-bearing plate 3 are connected to the load-bearing frame 1, a material introduction cylinder 4 is provided inside the circular load-bearing plate 3, and a feeding auger 5 is installed at the lower end of the feeding cylinder 4, a first feeding port 6 is provided on the feeding auger 5, and the first feeding port 6 is connected to the feeding cylinder 4, and a material guide trough 7 is installed at the output end of the feeding auger 5 , an annular limit plate 8 is installed on the outer side of the material introducing cylinder 4, and a load-bearing suspension rod 9 is installed on the load-bearing frame 1 above the annular limit plate 8, and a plurality of groups of load-bearing suspension rods 9 are equidistantly arranged, and the load-bearing suspension rods 9 are slidably connected with the annular limit plate 8, and a load-bearing block 10 is installed at the lower end of the load-bearing suspension rod 9, and the upper end of the load-bearing block 10 is connected to the annular limit plate 8 through a spring 11, and the spring 11 is sleeved on the load-bearing suspension rod 9. When working, the material enters from the input end of the material introducing cylinder 4, and is guided by the material introducing cylinder 4 into the first feed port 6, and enters the feeding auger 5, and the feeding auger 5 is started at this time. The feeding auger 5 conveys the material so that it passes through the guide trough 7 and reaches the belt of the belt conveyor 101. During the material conveying process, due to the gravity of the material itself, the downward pressure of the feeding auger 5 will be increased, so that the feeding auger 5 drives the guide barrel 4 to move downward. At this time, the spring 11 contracts, and then by reducing the distance between the lower end surface of the guide trough 7 and the belt conveyor 101, the accuracy of material feeding can be improved. Because the material has an impact on the conveyor belt during feeding, especially when the angle between the material and the conveyor belt direction is greater than or equal to 90°, it will cause strong wear on the conveyor belt, and the material will scatter. During the feeding process, it is easy to cause the guide plate to contact the conveyor belt too tightly, which will cause the conveyor belt to wear. Therefore, in order to reduce the wear of the conveyor belt caused by the feeding port, the feeding should be made in the same direction as the conveyor belt. During the feeding process, the material moves at almost the same speed as the conveyor belt, and the equivalent free fall height of the material falling on the conveyor belt is less than 1m, so that the impact force on the conveyor belt is as small as possible. Then, through the set guide trough 7, the material is continuously dropped to the center of the conveyor belt, and the baffle width of the guide trough 7 becomes narrower and narrower along the running direction of the conveyor belt, and the bottom of the guide trough 7 cannot be too close to the conveyor belt.

[0022] A dust collection shell 12 is installed in the opening 2 through a bracket, and the lower end of the dust collection shell 12 extends into the material introducing tube 4, and a second feed port 13 is provided on the left side above the dust collection shell 12, and a dust collection hood 14 is installed on the dust collection shell 12 above the right side of the second feed port 13, and the upper end of the dust collection hood 14 is connected to an external dust collection device through a pipe. When working, the external dust collection device is started, and the device is usually an industrial dust collection air pump, and the dust raised by the material is sucked while the material passes through.

[0023] One end of the annular limiting plate 8 away from the material guiding cylinder 4 extends above the loop-shaped load-bearing plate 3, and a gravity sensor 15 is provided between the lower part of the annular limiting plate 8 and the loop-shaped load-bearing plate 3. The number of the gravity sensors 15 is the same as that of the load-bearing suspension rods 9, and the position of each group of gravity sensors 15 corresponds to the position of its corresponding group of load-bearing suspension rods 9. A PLC controller is also arranged on the load-bearing frame body 1, and the gravity sensor 15 is electrically connected to the PLC controller. Through the cooperation of multiple groups of gravity sensors 15, the weight of the feeding auger 5 during operation can be monitored, and the monitored data is transmitted into the PLC controller, so that the PLC controller adjusts the rotation speed of the auger according to the data transmitted by the weight sensor 15 to avoid the situation of auger blockage. And when the weight data reaches the pre-set maximum value, the PLC controller controls the machine to stop, so as to facilitate the subsequent operation of the staff.

[0024] The diameter of the output end of the feeding auger 5 is larger than that of the feeding end, and the feeding auger 5 is inclined.

[0025] The cross-section of the material guiding groove 7 is an inverted "U" shape, and the width of the material guiding groove 7 is smaller than the width of the belt in the belt conveyor 101.

[0026] Both sides of the lower part of the loop-shaped load-bearing plate 3 are connected to the load-bearing frame body 1 through auxiliary support plates 16.

[0027] The upper end of the gravity sensor 15 is connected to the annular limiting plate 8, and the lower end of the gravity sensor 15 contacts the loop-shaped load-bearing plate 3.

[0028] In this kind of spiral air-lock feeding device, a feeding auger 5 is provided below the material guiding cylinder 4, and the material guiding cylinder 4 is slidably connected to the load-bearing suspension rod 9 through a spring 11. When feeding, through the cooperation of the feeding auger 5 and the spring 11, a buffering effect is achieved, so as to reduce the damage to the belt, improve the service life of the belt, and reduce the cost of equipment maintenance. In addition, when feeding, the weight of the material will increase the downward pressure of the feeding auger 5, so that the spring 11 contracts, and then the material guiding groove 7 is located on the belt of the belt conveyor 101 to improve the accuracy of feeding and avoid the material from falling out of the belt. At the same time, when not feeding, the spring 11 plays a supporting role for the material guiding cylinder 4, and then the material guiding groove 7 is located above the belt conveyor 101 and does not contact the belt, so as to better reduce the belt wear. In addition, through the cooperation of the dust suction housing 12 and the dust suction cover 14, the dust generated during the feeding process is sucked, so as to improve the comfort of the working environment.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A spiral air-locking feeding device, comprising a load-bearing frame (1) and a belt conveyor (101), characterized in that: A belt conveyor (101) is provided below the load-bearing frame body (1), and an opening (2) is provided on the load-bearing frame body (1). A return-shaped load-bearing plate (3) is provided below the opening (2), and the outer sides of the return-shaped load-bearing plate (3) are all connected to the load-bearing frame body (1). A material guiding cylinder (4) is provided inside the return-shaped load-bearing plate (3), and a feeding auger (5) is installed at the lower end of the material guiding cylinder (4). A first feeding port (6) is provided on the feeding auger (5) and the first feeding port (6) is connected to the material guiding cylinder (4). The output end of the feeding auger (5) is installed with a material guiding trough (7). An annular limiting plate (8) is installed on the outer side of the material guiding cylinder (4). Above the annular limiting plate (8), load-bearing hanging rods (9) are installed on the load-bearing frame body (1), and multiple groups of load-bearing hanging rods (9) are arranged at equal intervals. The load-bearing hanging rods (9) are slidably connected to the annular limiting plate (8), and a load-bearing block (10) is installed at the lower end of the load-bearing hanging rods (9). The upper end of the load-bearing block (10) is connected to the annular limiting plate (8) through a spring (11), and the spring (11) is sleeved on the load-bearing hanging rods (9).

2. A spiral air-locking feeding device according to claim 1, characterized in that: A dust suction housing (12) is installed in the opening (2) through a bracket. The lower end of the dust suction housing (12) extends into the material guiding cylinder (4), and a second feeding port (13) is provided on the left side above the dust suction housing (12). A dust suction hood (14) is installed on the dust suction housing (12) above the right side of the second feeding port (13). The upper end of the dust suction hood (14) is connected to an external dust suction device through a pipeline.

3. The spiral air-locking feeding device according to claim 1, characterized in that: One end of the annular limiting plate (8) far away from the material guiding cylinder (4) extends above the return-shaped load-bearing plate (3), and a gravity sensor (15) is provided between the annular limiting plate (8) and the return-shaped load-bearing plate (3) below. The number of the gravity sensors (15) is the same as that of the load-bearing hanging rods (9), and the position of each group of gravity sensors (15) corresponds to the position of its corresponding group of load-bearing hanging rods (9).

4. The spiral air-locking feeding device according to claim 1, characterized in that: The diameter of the output end of the feeding auger (5) is not less than the diameter of the feeding end of the feeding auger (5), and the feeding auger (5) is inclined.

5. The spiral air-locking feeding device according to claim 1, characterized in that: The cross section of the material guiding trough (7) is an inverted "U" shape, and the width of the material guiding trough (7) is less than the width of the belt inside the belt conveyor (101).

6. The spiral air-locking feeding device according to claim 1, characterized in that: Both sides below the return-shaped load-bearing plate (3) are connected to the load-bearing frame body (1) through auxiliary support plates (16).

7. The spiral air-locking feeding device according to claim 3, characterized in that: The upper end of the gravity sensor (15) is connected to the annular limiting plate (8), and the lower end of the gravity sensor (15) contacts the return-shaped load-bearing plate (3).

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