A pneumatic arch breaking device

Abstract

The utility model provides a pneumatic arch breaking device, which is fixedly connected to the hopper, including a blower, a solenoid valve and a plurality of jet pipes, the jet pipes are evenly fixedly arranged on the inclined surface of the inner bottom of the hopper around the axis of the hopper, the jet pipes are coplanar with the axis of the hopper, and the jet pipes are respectively provided with a plurality of first nozzles and a second nozzle in parallel, the first nozzles are facing an acute angle with the tangent of the hopper, and the second nozzles are facing the axis of the hopper; an air pipe for communication is provided between the blower and the jet pipe, and a solenoid valve is provided on the air pipe. The utility model solves the problem of noise generated when a mechanical mechanism is used for arch breaking, and reduces the noise during arch breaking.

Description

Technical Field

[0001] The utility model relates to the technical field of arch breaking, in particular to a pneumatic arch breaking device. Background Art

[0002] Silos are storage devices for various loose materials. However, in actual use, when materials are discharged from the silo, due to the friction and adhesion between particles and between particles and the inner wall of the silo, a dome is formed at the discharge port, blocking the discharge port and causing difficulty in discharging. In the prior art, a vibrator is provided at the bottom of the hopper, and the vibrator avoids material blockage at the discharge port by vibration when breaking the arch. However, long-term vibration will cause the connection of the equipment to loosen, affecting normal production or equipment safety. Therefore, it is necessary to optimize the arch breaking device. Utility Model Content

[0003] In view of the deficiencies existing in the prior art, the utility model provides a pneumatic arch breaking device, which solves the problem in the prior art that long-term vibration of the mechanical mechanism may cause the connection of the equipment to loosen, affecting normal production or the safety of the equipment.

[0004] According to an embodiment of the utility model, a pneumatic arch-breaking device is provided, wherein the arch-breaking device is fixedly connected to the hopper, and comprises a blower, a solenoid valve and a plurality of jet pipes, wherein the jet pipes are evenly and fixedly arranged on the inclined surface of the inner bottom of the hopper around the axis of the hopper, the jet pipes are coplanar with the axis of the hopper, and a plurality of first nozzles and second nozzles are arranged in parallel on the jet pipes, wherein the direction of the first nozzles and the tangent angle of the hopper are acute angles, and the second nozzles face the axis of the hopper; the blower and the jet pipes are connected through an air pipe, and a solenoid valve is arranged on the air pipe.

[0005] The technical principle of the utility model is that a plurality of gas injection pipes are arranged inside the hopper to impact the arched materials at the bottom of the hopper with gas, and the gas impacts from two different directions of the first nozzle and the second nozzle, thereby increasing the arch breaking efficiency.

[0006] Preferably, four air injection pipes are provided, and the angle between the direction of the first nozzle and the tangent of the hopper is forty-five degrees.

[0007] Preferably, the plurality of second nozzles located at the top are inclined upward.

[0008] Preferably, the vertical cross-section of the jet pipe is trapezoidal, a cylindrical main air passage is arranged inside the jet pipe, the first nozzle and the second nozzle are connected to the main air passage, and inclined surfaces are arranged on both sides of the jet pipe.

[0009] Preferably, both ends of the air injection pipe extend to the upper edge and the lower edge of the inclined surface at the lower end of the hopper respectively.

[0010] Preferably, a center rod is provided inside the main airway, and two ends of the center rod are rotatably connected to the two ends of the main airway respectively. The center rod is provided with a plurality of fan-shaped blocking blocks symmetrically arranged about the axis of the center rod, and the blocking blocks are located on the axis of the center rod corresponding to the first nozzle and the second nozzle, and the fan-shaped angle of the blocking blocks is greater than the angle between the first nozzle and the second nozzle; the circumscribed circle of the blocking blocks is adapted to the main airway; and fan blades are fixedly arranged on the center rod.

[0011] Preferably, the fan blades are located on one end of the center rod close to the main airway intake.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model does not generate a large noise when using gas to break the arch of the material in the hopper, avoids using a vibrator to break the arch, and reduces the probability of the connection state of the arch breaking device and the hopper being affected. The gas is ejected from the first nozzle and the second nozzle in two directions, thereby improving the arch breaking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view of the utility model.

[0014] Figure 2 It is a side view of the utility model.

[0015] Figure 3 This is a schematic diagram of the position of the blocking block of the utility model.

[0016] Figure 4 This is a schematic diagram of the positions of the fan blades and the blocking blocks of the utility model.

[0017] Figure 5 It is a schematic diagram of the orientation of the first nozzle of the utility model.

[0018] In the above drawings: 1, hopper; 2, jet pipe; 3, first nozzle; 4, second nozzle; 5, fan blade; 6, center rod; 7, blocking block; 8, main airway. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1 , 2As shown in Figures 5 and 6, the embodiment of the utility model proposes a pneumatic arch-breaking device, which is fixedly connected to the hopper 1. The arch-breaking device prevents the bulk material in the hopper 1 from being unable to move normally downward to the outlet of the hopper 1 after forming an arch. The device includes a blower, a solenoid valve and a plurality of jet pipes 2, four in this embodiment, and the four jet pipes 2 are evenly arranged around the axis of the hopper 1. The hopper 1 is funnel-shaped, and the jet pipes 2 are fixedly arranged on the inclined surface of the inner bottom of the hopper 1. The jet pipes 2 and the axes of the hopper 1 are coplanar, which facilitates the fixed connection of the straight-shaped jet pipes 2 and the hopper 1. The jet pipe 2 is respectively provided with a plurality of first nozzles 3 and second nozzles 4 in parallel, and the first nozzles 3 and the second nozzles 4 are respectively arranged at different radial positions of the jet pipe 2. The orientation of the first nozzle 3 and the tangent angle of the hopper 1 are acute angles, and 45° is used in this embodiment, so that the first nozzle 3 can affect a larger range, and the airflow ejected by the first nozzle 3 allows the bulk material at the bottom of the hopper 1 to be affected by the airflow.

[0021] The second nozzle 4 faces the axis of the hopper 1. The blower and the jet pipe 2 are connected through an air pipe, and a solenoid valve is provided on the air pipe. The airflow generated by the first nozzle 3 rotates in the hopper 1, so that the material is driven downward by the rotating airflow. The airflow generated by the second nozzle 4 impacts the bulk material head-on, breaking up the tightly connected bulk material.

[0022] Preferably, the plurality of second nozzles 4 located at the top are inclined upward. When the bulk material forming an arch in the hopper 1 is located above the conical section at the bottom of the hopper 1, that is, the bottom of the straight section of the hopper 1, the second nozzles 4 inclined upward also affect this area to avoid forming an arch above the conical section of the hopper 1.

[0023] like Figure 3 As shown, preferably, the vertical cross section of the jet pipe 2 is a trapezoid, a cylindrical main airway 8 is provided inside the jet pipe 2, and the first nozzle 3 and the second nozzle 4 are connected to the main airway 8. When the airflow driven by the first nozzle 3 rotates in the hopper 1, the material moves downward. If the rotating ring hopper 1 meets the side of the jet pipe 2 vertically, it will hinder the rotation of the airflow, and the trapezoidal side reduces the impact on the rotating airflow.

[0024] Preferably, both ends of the air injection pipe 2 extend to the upper edge and the lower edge of the inclined surface at the lower end of the hopper 1, respectively, so as to ensure that the vertical position in the hopper 1 can be affected by the first nozzle 3 and the second nozzle 4.

[0025] like Figure 3 , 4As shown, as a preference, a central rod 6 is provided inside the main airway 8, and the two ends of the central rod 6 are respectively connected to the two ends of the main airway 8 for rotation. The central rod 6 has a plurality of fan-shaped blocking blocks 7 symmetrically arranged about the axis of the central rod, and the position of the blocking block 7 on the axis of the central rod 6 corresponds to the first nozzle 3 and the second nozzle 4, and the fan-shaped angle of the blocking block 7 is greater than the angle between the first nozzle 3 and the second nozzle 4, so as to avoid the first nozzle 3 and the second nozzle 4 from opening at the same time. The circumscribed circle of the blocking block 7 is adapted to the main airway 8. The central rod 6 is fixedly provided with a fan blade 5. When the airflow enters the main airway 8, the fan blade 5 is driven to rotate, thereby rotating the blocking block 7 on the central rod 6. The blocking block 7 allows the first nozzle 3 and the second nozzle 4 to be opened alternately, reducing the total area of ​​the exhaust hole, so that the gas ejected from the first nozzle 3 and the second nozzle 4 maintains sufficient pressure. And the alternating impact on the bulk material in the hopper 1 can better perform the arch breaking operation. The middle part of the blocking block 7 is provided with a vent hole running through left and right.

[0026] Preferably, the fan blade 5 is located on the central rod 6 at one end close to the air inlet of the main air duct 8, so that the gas in the air inlet main air duct 8 has sufficient pressure to drive the fan blade 5.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A pneumatic arch breaking device, the arch breaking device is fixedly connected to a hopper (1), characterized in that: The invention comprises a blower, a solenoid valve and a plurality of jet pipes (2), wherein the jet pipes (2) are evenly fixedly arranged on the inclined surface of the inner bottom of the hopper (1) around the axis of the hopper (1), the jet pipes (2) and the axis of the hopper (1) are coplanar, and the jet pipes (2) are respectively and parallelly arranged with a plurality of first nozzles (3) and second nozzles (4), the first nozzles (3) are oriented at an acute angle to the tangent of the hopper (1), and the second nozzles (4) are oriented toward the axis of the hopper (1); the blower and the jet pipes (2) are connected through an air pipe, and the air pipe is provided with a solenoid valve.

2. A pneumatic arch breaking device as claimed in claim 1, characterized in that: Four jet pipes (2) are provided, and the angle between the direction of the first jet port (3) and the tangent line of the hopper (1) is forty-five degrees.

3. A pneumatic arch breaking device as claimed in claim 1, characterized in that: The plurality of second nozzles (4) located at the top are inclined upward.

4. A pneumatic arch breaking device as claimed in claim 1, characterized in that: The vertical cross section of the jet pipe (2) is trapezoidal, a cylindrical main air passage (8) is arranged inside the jet pipe (2), and the first jet port (3) and the second jet port (4) are connected to the main air passage (8).

5. A pneumatic arch breaking device as claimed in claim 4, characterized in that: The two ends of the air injection pipe (2) extend to the upper edge and the lower edge of the inclined surface at the lower end of the hopper (1) respectively.

6. A pneumatic arch breaking device as claimed in claim 4, characterized in that: A central rod (6) is arranged inside the main airway (8), and two ends of the central rod (6) are rotatably connected to two ends of the main airway (8) respectively. The central rod (6) is provided with a plurality of fan-shaped blocking blocks (7) symmetrically arranged about the axis of the central rod. The axial position of the blocking blocks (7) on the central rod (6) corresponds to the first nozzle (3) and the second nozzle (4), and the fan-shaped angle of the blocking blocks (7) is greater than the included angle between the first nozzle (3) and the second nozzle (4); the circumscribed circle of the blocking blocks (7) is adapted to the main airway (8); and the fan blades (5) are fixedly arranged on the central rod (6).

7. A pneumatic arch breaking device as claimed in claim 6, characterized in that: The fan blade (5) is located on the central rod (6) at one end close to the air inlet of the main air passage (8).

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