Dredging and anti-blocking device for material bin and material bin adopting dredging and anti-blocking device

Abstract

The utility model discloses a dredging and anti-blocking device for a material bin and the material bin adopting the dredging and anti-blocking device. Belongs to the technical field of storage dredging anti-blocking devices. The technical key points are as follows: the device comprises a telescopic mechanism, a sleeve is arranged at the front end of the telescopic mechanism, a gas ejector pipe connected with a telescopic rod of the telescopic mechanism is arranged in the sleeve, the gas ejector pipe is directly or indirectly communicated and connected with an external compressed gas source, and a wide-angle nozzle is connected to the free end of the gas ejector pipe; the free end of the sleeve is connected with an external material bin body, in the initial state, the wide-angle spray head is located on the outer side of the side wall of the external material bin body, and when dredging and blocking prevention need to be conducted, a telescopic rod of the telescopic mechanism stretches out to drive the air spraying pipe and the wide-angle spray head to enter the external material bin body to conduct circumferential and wide-angle blowing. The dredging anti-blocking device for the material bin is compact in structure, easy to install and maintain and good in dredging effect. The device is used for warehouse dredging and anti-blocking.

Description

Technical Field

[0001] This utility model relates to a dredging and anti-clogging device, and more specifically, to a dredging and anti-clogging device for a material silo. This utility model also relates to a material silo employing this device. Background Technology

[0002] Material blockage in the silo can prevent normal material transport, thus affecting the safe operation of the entire system. Analysis reveals the following main causes of silo blockage:

[0003] 1) Excessive moisture content in materials: When the moisture content in materials is too high, adhesive bonds are easily formed between particles, increasing the cohesive force between particles and leading to blockage and arching.

[0004] 2) High ash content in materials: When ash in materials comes into contact with water, the viscosity increases and the fluidity decreases, making it easy for the material to stick to the walls and cause blockages in the silo.

[0005] 3) Uneven particle size distribution: When materials with uneven particle size are piled up in the silo, fine particles easily fill the gaps between large particles, forming a stable structure that hinders the flow of materials.

[0006] 4) If the material drop angle of the material bin is too small or the inner wall of the material bin is rough, it is easy for material to stick to the wall or become clogged inside the bin.

[0007] Currently, air cannons and vibratory beaters are commonly used for unblocking, but these devices all have their own defects and are not very effective at unblocking. Utility Model Content

[0008] The primary objective of this invention is to address the shortcomings of the prior art by providing a material silo unblocking and anti-clogging device that is compact in structure, easy to install and maintain, and has a good unblocking effect.

[0009] The latter objective of this invention is to provide a material silo employing the above-described device.

[0010] The preceding technical solution of this utility model is implemented as follows: a material silo unblocking and anti-clogging device includes a telescopic mechanism, a sleeve is provided at the front end of the telescopic mechanism, an air jet pipe is provided inside the sleeve and connected to the telescopic rod of the telescopic mechanism, the air jet pipe is directly or indirectly connected to an external compressed air source, and a wide-angle nozzle is connected to the free end of the air jet pipe.

[0011] The free end of the sleeve is connected to the external material silo. In the initial state, the wide-angle nozzle is located on the outside of the side wall of the external material silo. When it is necessary to clear blockages, the telescopic rod of the telescopic mechanism extends, driving the jet pipe and the wide-angle nozzle into the external material silo for circumferential and wide-angle blowing.

[0012] In the aforementioned material silo unblocking and anti-clogging device, the telescopic mechanism is a hydraulic cylinder, with a sleeve connected to the front end of the hydraulic cylinder body and a single-sided open jet pipe connected to the free end of the hydraulic rod piston rod.

[0013] In the aforementioned material silo unblocking and anti-clogging device, the sleeve sidewall is provided with a clearance elongated hole along the axial direction, and the connecting pipe of the external compressed air source and the jet pipe passes through the clearance elongated hole and is connected to the jet pipe.

[0014] In the aforementioned material silo unblocking and anti-clogging device, the clearance orifice is provided with limit switches that cooperate with the connecting pipeline on both sides along its length.

[0015] In the aforementioned material silo unblocking and anti-clogging device, a sensor is provided at one end of the clearance elongated hole near the telescopic mechanism, which is opposite to the jet pipe. The sensor is used to control the opening and closing of the external compressed air source.

[0016] In the aforementioned material silo unblocking and anti-clogging device, the free end of the sleeve is connected to a dynamic seal via a flange, and the free end of the dynamic seal is connected to the external material silo body; the dynamic seal is used to seal the outer wall of the jet pipe to prevent the material inside the material silo from being carried out when the jet pipe contracts.

[0017] In the aforementioned material silo unblocking and anti-clogging device, the dynamic sealing element includes an installation sleeve, the inner diameter of which is larger than the outer diameter of the jet pipe.

[0018] An annular limiting part adapted to the outer diameter of the jet pipe is provided at one end of the mounting sleeve along the axial direction. A sealing packing that matches the jet pipe is provided in the mounting sleeve along the axial direction. A pressure ring for pressing the sealing packing is provided at the other end of the mounting sleeve. The pressure ring is clamped and fixed to the sleeve by the mounting sleeve.

[0019] In the aforementioned material silo unblocking and anti-clogging device, the angle α between the outer edge of the wide-angle nozzle's purging range and the central axis of the jet pipe is 20-350°.

[0020] With the aforementioned structure, this invention uses a telescopic mechanism to drive the jet pipe and wide-angle nozzle into the material silo for circumferential and wide-angle blowing, effectively clearing blockages and preventing coal bridging and arching. Furthermore, this device boasts advantages such as simple structure, convenient operation, and low maintenance costs, making it suitable for unblocking and preventing blockages in various material silos.

[0021] The latter technical solution of this utility model is implemented as follows: a material silo includes a silo body, and a plurality of the above-mentioned anti-blocking devices are distributed along the circumferential direction on the outer wall of the silo body, and each anti-blocking device is inclined downward.

[0022] In the aforementioned material silo, a connecting seat is provided on the outer wall of the silo body, and the anti-blocking device is connected to the connecting seat via a flange.

[0023] With the above-mentioned structure, this utility model can effectively remove blockages and prevent coal bridging and arching by installing an anti-blocking device on the outer wall of the silo. When blockage occurs, the telescopic mechanism can drive the jet pipe and wide-angle nozzle to extend into the silo and blow at a large angle, thereby avoiding the occurrence of coal bridging and arching. Attached Figure Description

[0024] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure along the axial direction.

[0027] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0028] Figure 4 This is a schematic diagram of the assembly structure of the material silo and anti-blocking device of this utility model.

[0029] Figure 5 This is a schematic diagram of the connection between the material silo and the anti-blocking device of this utility model.

[0030] In the diagram: 1. Telescopic mechanism; 2. Sleeve; 2a. Clearance orifice; 3. Air jet pipe; 4. Wide-angle nozzle; 5. Connecting pipeline; 6. Limit switch; 7. Sensor; 8. Dynamic seal; 8a. Mounting sleeve; 8b. Annular limiting part; 8c. Sealing filler; 8d. Pressure ring; 9. Chamber body; 10. Connecting seat. Detailed Implementation

[0031] See Figures 1 to 3 As shown, this utility model discloses a material silo unblocking and anti-clogging device, including a telescopic mechanism 1. A sleeve 2 is provided at the front end of the telescopic mechanism 1, and an air jet pipe 3 connected to the telescopic rod of the telescopic mechanism 1 is provided inside the sleeve 2. The air jet pipe 3 is directly or indirectly connected to an external compressed air source. A wide-angle nozzle 4 is connected to the free end of the air jet pipe 3. The angle α between the outer edge of the blowing range of the wide-angle nozzle 4 and the central axis of the air jet pipe 3 is 20-350°. The specific blowing range of the wide-angle nozzle depends on the specific situation and is achieved by setting water spray holes on the surface of the wide-angle nozzle. Of course, nozzles can also be installed according to actual needs.

[0032] The free end of the sleeve 2 is connected to the external material silo. In the initial state, the wide-angle nozzle 4 is located on the outside of the side wall of the external material silo. When it is necessary to clear blockages, the telescopic rod of the telescopic mechanism 1 extends, driving the jet pipe 3 and the wide-angle nozzle 4 into the external material silo for circumferential and wide-angle blowing.

[0033] In this embodiment, the telescopic mechanism 1 is a hydraulic cylinder, the sleeve 2 is connected to the front end of the hydraulic cylinder body, and the single-sided open jet pipe 3 is connected to the free end of the hydraulic rod piston rod.

[0034] Preferably, the side wall of the sleeve 2 is provided with a clearance elongated hole 2a along the axial direction, and the connecting pipe 5 between the external compressed air source and the jet pipe 3 passes through the clearance elongated hole 2a and is connected to the jet pipe 3.

[0035] More preferably, to achieve automatic stroke control, limit switches 6, which cooperate with the connecting pipe 5, are respectively provided on both sides of the clearance orifice 2a along its length. By obtaining signals through the limit switches, free control of the solenoid valves on the hydraulic cylinder's oil circuit can be achieved. The connection and control of the hydraulic cylinder with the hydraulic station, solenoid valves, etc., are existing technologies and not the technical points to be protected by this utility model, and will not be described further here.

[0036] More preferably, a sensor 7 is provided at one end of the clearance orifice 2a near the telescopic mechanism 1, opposite to the jet pipe 3. The sensor 7 is used to control the opening and closing of the external compressed air source. The pipeline connection between the jet pipe and the external compressed air source, as well as the connection and control of the solenoid valve, controller, and sensor on the pipeline, are all existing technologies and are not the technical points to be protected by this utility model, and will not be described in detail here.

[0037] More preferably, the free end of the sleeve 2 is connected to a dynamic seal 8 via a flange, and the free end of the dynamic seal 8 is connected to the external material storage chamber; the dynamic seal 8 is used to seal the outer wall of the jet pipe 3 to prevent the material inside the material storage chamber from being carried out when the jet pipe 3 contracts. The dynamic seal can prevent the internal material from being carried out of the storage chamber when the jet pipe contracts.

[0038] In this embodiment, the dynamic seal 8 includes a mounting sleeve 8a, the inner diameter of which is larger than the outer diameter of the jet pipe 3. An annular limiting portion 8b, adapted to the outer diameter of the jet pipe 3, is provided at one end of the mounting sleeve 8a along the axial direction. A sealing filler 8c, cooperating with the jet pipe 3, is provided axially inside the mounting sleeve 8a. A pressure ring 8d, which compresses the sealing filler 8c, is provided at the other end of the mounting sleeve 8a. The pressure ring 8d is clamped and fixed to the sleeve 2 by the mounting sleeve 8a. The sealing filler provides a seal and is wear-resistant, effectively scraping off materials adhering to the jet pipe.

[0039] See Figure 4 and Figure 5As shown, a material silo of this utility model includes a silo body 9. Anti-blocking devices, as described above, are distributed circumferentially on the outer wall of the silo body 9, with each anti-blocking device inclined downwards. For ease of installation, a connecting seat 10 is provided on the outer wall of the silo body 9, and the anti-blocking devices are connected to the connecting seat 10 via flanges.

[0040] During operation, the hydraulic cylinder drives the jet pipe and wide-angle nozzle to extend into the chamber to purge and clear blockages with high-pressure air, effectively eliminating blockages within the chamber.

[0041] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.

Claims

1. A material bin unblocking and anti-blocking device, characterized in that, The invention relates to a kind of anti-blocking device for material silo, including telescopic mechanism (1), be provided with sleeve (2) in the front end of telescopic mechanism (1), be provided with with telescopic mechanism (1) telescopic rod being connected in sleeve (2) inside jet pipe (3), jet pipe (3) is directly or indirectly with external compressed air source lead-through connection, is connected with wide-angle nozzle (4) in the free end of jet pipe (3); Sleeve (2) free end is connected with external material silo body, in initial state, wide-angle nozzle (4) is located at the outside of external material silo body side wall, when needing to carry out dredging and prevent blocking, telescopic mechanism (1) telescopic rod stretches out, drives jet pipe (3) and wide-angle nozzle (4) and enters external material silo body and carries out circumferential and wide-angle blowing.

2. The anti-blocking and dredging device for a material bin according to claim 1, characterized in that, Telescopic mechanism (1) is hydraulic cylinder, sleeve (2) is connected in the front end of hydraulic cylinder cylinder body, one-side open jet pipe (3) is connected in the free end of hydraulic rod piston rod.

3. The anti-blocking and dredging device for a material bin according to claim 1, characterized in that, Sleeve (2) side wall is provided with let-out long hole (2a) along the axial direction, and the connecting pipeline (5) of external compressed air source and jet pipe (3) passes through let-out long hole (2a) and is connected with jet pipe (3) lead-through.

4. The anti-blocking and dredging device for a material bin according to claim 3, characterized in that, The two sides of let-out long hole (2a) along the length direction are respectively provided with travel switch (6) matched with connecting pipeline (5).

5. The anti-blocking and unblocking device for a material bin according to claim 3, characterized in that, The end of let-out long hole (2a) close to telescopic mechanism (1) is provided with sensor (7) opposite to jet pipe (3), and sensor (7) is used to control the lead-through and closing of external compressed air source.

6. The anti-blocking and unblocking device for a material bin according to claim 1, characterized in that, The free end of sleeve (2) is connected with dynamic sealing element (8) through flange, and the free end of dynamic sealing element (8) is connected with external material silo body;Dynamic sealing element (8) is used to seal the outer wall of jet pipe (3) to avoid that material in material silo is taken out when jet pipe (3) shrinks.

7. The anti-blocking and unblocking device for a material bin according to claim 6, characterized in that, Dynamic sealing element (8) includes mounting sleeve (8a), and the inner diameter of mounting sleeve (8a) is greater than the outer diameter of jet pipe (3); Ring limiting part (8b) matched with the outer diameter of jet pipe (3) is arranged on one end of mounting sleeve (8a) along the axial direction, sealing packing (8c) matched with jet pipe (3) is arranged in mounting sleeve (8a) along the axial direction, and pressing ring (8d) for pressing sealing packing (8c) is arranged on the other end of mounting sleeve (8a), and pressing ring (8d) is clamped and fixed with sleeve (2) through mounting sleeve (8a).

8. The anti-blocking and unblocking device for a material bin according to claim 1, characterized in that, The included angle α between the outer end edge of the blowing range of wide-angle nozzle (4) and the central axis of jet pipe (3) is 20-350 °.

9. A material bin comprising a bin body (9), characterised in that The outer wall of silo body (9) is circumferentially distributed with a plurality of anti-blocking devices as claimed in any one of claims 1-8, and each anti-blocking device is arranged downwardly inclined.

10. The bin of claim 9, wherein, The outer wall of silo body (9) is provided with connecting seat (10), and the anti-blocking device is connected to connecting seat (10) through flange.

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