A bin arch breaker and method of use thereof

Abstract

This invention provides a silo arch-breaking device and its usage method. The silo arch-breaking device includes a hollow arch-breaking head and a power device driven by the arch-breaking head. Air holes are provided on the shell of the arch-breaking head, and the power device drives the arch-breaking head to reciprocate. The silo arch-breaking device also includes a compressed medium conveying module connected to the arch-breaking head. Compressed medium is conveyed into the arch-breaking head through the compressed medium conveying module, and the compressed medium is ejected through the air holes to form a jet that flushes the silo. This invention adds a power device to the structure of a traditional arch-breaking device, thus combining the dual functions of arch breaking and material removal. Simultaneously, the structure of the arch-breaking head has been improved to allow the introduction of compressed medium, which can blow away residual material or material adhering to the inner wall of the silo, improving the flowability of the material within the silo.

Description

Technical Field

[0001] This invention belongs to the technical field of silo auxiliary equipment, and relates to a silo arch-breaking device and its usage method, particularly to a silo arch-breaking device and its usage method that simultaneously realizes multiple functions of arch breaking, material clearing and purging. Background Technology

[0002] In modern industrial production, various silos are widely used to store bulk materials. During the storage of bulk materials, the materials are prone to arching inside the silos, which prevents the materials from being delivered normally and has a significant impact on material conveying operations.

[0003] When the bottom outlet gate of a silo storing powdery materials is opened to discharge the stored materials, the powdery materials are prone to forming suspended arches inside the silo, causing poor material discharge or even stopping the discharge. This is especially true when the powdery materials have a certain degree of moisture, making it even more difficult to discharge. Manually using steel rods to stir the powdery materials from the top or bottom outlet gate of the silo to break the arches is extremely difficult and dangerous.

[0004] When storing powder materials, due to their strong adhesion and poor scattering properties, the powder particles may agglomerate due to their own weight or strong adsorption, causing them to interlock and form clumps on the upper perimeter wall of the silo outlet. This leads to poor or impossible unloading. To improve the flowability of the powder and ensure normal production, the silo design must consider the installation of an arch-breaking device.

[0005] Existing arch-breaking devices mainly include mechanical arch-breaking devices (spiral arch-breaking, vibratory arch-breaking) and impact arch-breaking (pneumatic arch-breaking). Mechanical arch-breaking devices have complex structures, are difficult to maintain, and are costly. Spiral arch-breaking devices are also prone to causing a large amount of powder residue. Pneumatic arch-breaking devices, on the other hand, cause an increase in air pressure inside the silo, resulting in a higher dust concentration, and require the construction of an air compressor station.

[0006] CN209396337U discloses a scraper arch-breaking device for a silo, comprising an arch-breaking scraper and an arch-breaking cylinder. The arch-breaking cylinder is installed on the side wall of the silo, and the piston rod of the arch-breaking cylinder passes through the silo wall and extends into the silo. The arch-breaking scraper is hinged in the middle to the end of the piston rod of the arch-breaking cylinder, and one side is pressed against the inner wall of the silo.

[0007] CN207030042U discloses a powder silo arch-breaking device, including a powder silo, an inlet, an outlet, a vertical shaft toothed arch-breaking device, and a transmission device. The inlet is located at the top of the powder silo, and the outlet is located at the bottom of the powder silo. The vertical shaft toothed arch-breaking device adopts a cantilever structure and is installed inside the powder silo body. It includes a vertical shaft, a bearing seat, a bearing, and teeth. The upper end of the vertical shaft is fixed to the top of the powder silo by the bearing, and the lower end is a free end, with the end located above the outlet of the silo, so as not to affect normal discharge. The bearing is fixed to the outside of the bearing seat. The teeth are staggered on the vertical shaft. The transmission device is connected to the vertical shaft toothed arch-breaking device and is installed on the top of the powder silo to control the rotation of the arch-breaking device.

[0008] CN207275426U discloses a pressure-reducing telescopic arch-breaking device, comprising: an arch-breaking pressure-reducing cone that is placed above the discharge port of a hopper and can be raised and lowered. The arch-breaking pressure-reducing cone includes an integrally formed upper cone and a lower cone, so that when the arch-breaking pressure-reducing cone is stationary, the falling material falls along the side wall of the upper cone; when the arch-breaking pressure-reducing cone rises, the upper cone contacts the material in the hopper; and when the arch-breaking pressure-reducing cone descends, the lower cone contacts the material in the hopper.

[0009] However, due to the various reasons for material arching within the silo, existing arch-breaking devices are unable to effectively solve the problem. Therefore, there is an urgent need to develop a new arch-breaking device that can effectively address the issue of material arching within the silo, a problem that existing devices cannot completely resolve. This is especially true in vanadium product production, where granular or powdered raw materials are frequently used, sometimes containing moisture. After being loaded into the silo, these materials often arch and stick to the walls, causing difficulties in discharge and blockages. Summary of the Invention

[0010] To address the shortcomings of existing technologies, the present invention aims to provide a silo arch-breaking device and its usage method. Based on the structure of a traditional arch-breaking device, the present invention adds a power unit, thus combining the dual functions of arch breaking and material removal. Simultaneously, the structure of the arch-breaking head has been improved to allow the introduction of a compressed medium, which can purge residual material or material adhering to the inner wall of the silo, improving the flowability of the material within the silo.

[0011] To achieve this objective, the present invention adopts the following technical solution:

[0012] In a first aspect, the present invention provides a silo arch breaking device, the silo arch breaking device comprising a hollow arch breaking head and a power device that is drively connected to the arch breaking head, the shell of the arch breaking head being provided with air holes, and the power device being used to drive the arch breaking head to perform reciprocating motion.

[0013] The aforementioned silo arch-breaking device also includes a compressed medium conveying module connected to the arch-breaking head. The compressed medium is conveyed into the arch-breaking head through the compressed medium conveying module, and the compressed medium is ejected through the air holes to form a stream that sweeps the silo.

[0014] This invention adds a power unit to the traditional arch-breaking device, combining the dual functions of arch breaking and material removal. Simultaneously, the structure of the arch-breaking head has been improved to allow the introduction of a compressed medium, which can purge residual material or material adhering to the inner wall of the silo, improving the flowability of the material within the silo.

[0015] As a preferred technical solution of the present invention, the arch-breaking head includes an upper cone and a lower cone, and the bottom surface of the upper cone and the bottom surface of the lower cone are connected to form a cavity structure.

[0016] Preferably, the upper cone and the lower cone are cones.

[0017] Preferably, the upper cone and the lower cone are pyramids.

[0018] Preferably, at least one air hole is formed on the shell of the lower cone along the circumferential direction.

[0019] Preferably, a discharge port is provided at the tip of the lower cone.

[0020] Preferably, a partition is provided on the mating surface of the upper cone and the lower cone.

[0021] In this invention, the purpose of setting the baffle is to reduce the volume of the cavity inside the arch breaker head so as to quickly form the jet stream.

[0022] It should be noted that the size and dimensions of the upper and lower cones, as well as the number and diameter of the vents, need to be determined by those skilled in the art based on the cross-sectional dimensions of the silo. Furthermore, the discharge port is used to clean the material entering the arch-breaking head cavity, and the diameter of the discharge port needs to be determined by those skilled in the art based on the particle size of the material.

[0023] As a preferred embodiment of the present invention, the power unit is connected to the arch-breaking head via an air duct.

[0024] Preferably, the outlet end of the air guide pipe extends into the interior of the arch-breaking head.

[0025] Preferably, an external air inlet pipe is connected to the inlet of the air guide pipe.

[0026] Preferably, the inlet end of the air inlet pipe is connected to a compressed medium delivery module, and the compressed medium delivered by the compressed medium delivery module flows sequentially through the air inlet pipe and the air guide pipe into the interior of the arch-breaking head.

[0027] As a preferred technical solution of the present invention, the power device includes a pneumatic drive device, a two-position four-way solenoid valve, an intake pipe and an exhaust pipe. The two ends of the housing of the pneumatic drive device are independently connected to the two-position four-way solenoid valve, and the two-position four-way solenoid valve is independently connected to the intake pipe and the exhaust pipe.

[0028] Preferably, the pneumatic drive device includes a cylinder and a piston assembly located inside it.

[0029] Preferably, the piston assembly includes a piston and a piston rod, one end of the piston rod is connected to the piston, and the other end of the piston rod is connected to the air guide pipe. The piston rod drives the arch-breaking head to reciprocate in the vertical direction through the air guide pipe.

[0030] Preferably, the piston rod is connected to the gas guide pipe via a flange.

[0031] As a preferred technical solution of the present invention, the two-position four-way solenoid valve is provided with a stroke channel and a return channel inside.

[0032] Preferably, the stroke passage includes a stroke intake passage and a stroke exhaust passage. The stroke intake passage connects the intake pipe and one end of the pneumatic drive device, and the stroke exhaust passage connects the exhaust pipe and the other end of the pneumatic drive device. Gas enters one end of the pneumatic drive device from the intake pipe through the stroke intake passage. The gas drives the piston assembly to push out of the cylinder to complete one stroke. Gas at the other end of the pneumatic drive device is discharged from the exhaust pipe through the stroke exhaust passage.

[0033] Preferably, the return passage includes a return intake passage and a return exhaust passage. The return intake passage connects the intake pipe and one end of the pneumatic drive device, and the return exhaust passage connects the exhaust pipe and the other end of the pneumatic drive device. Gas enters one end of the pneumatic drive device from the intake pipe through the return intake passage, and the gas drives the piston assembly to retract into the cylinder to complete one return stroke. Gas at the other end of the pneumatic drive device is discharged from the exhaust pipe through the return exhaust passage.

[0034] Preferably, the intake pipeline includes an intake main pipe and an overflow branch pipe, the inlet end of the overflow branch pipe is connected to the intake branch pipe, a ball valve is provided on the intake main pipe, and an overflow valve is provided on the overflow branch pipe.

[0035] Preferably, an overflow valve is provided on the exhaust pipe.

[0036] In this invention, the ball valve installed on the intake main pipe is mainly used to control the intake airflow rate of the air source. The speed at which the piston rod pushes out of and retracts from the cylinder is controlled by controlling the opening degree of the overflow valve installed on the exhaust pipe and the overflow branch pipe.

[0037] As a preferred technical solution of the present invention, the compressed medium delivery module includes a continuous flow circuit, a pulse flow circuit, an air intake circuit, and a two-position three-way solenoid valve. The inlet of the two-position three-way solenoid valve is connected to the air intake circuit, and the outlet of the two-position three-way solenoid valve is independently connected to the continuous flow circuit and the pulse flow circuit, respectively. The air intake circuit is connected to the continuous flow circuit or the air intake circuit is connected to the pulse flow circuit by switching the working state of the two-position three-way solenoid valve.

[0038] Preferably, the two-position three-way solenoid valve includes a first inlet, a second inlet, a first outlet, and a second outlet. The first inlet and the first outlet are relatively independently connected, and the second inlet and the second outlet are relatively independently connected. The first outlet and the second outlet are respectively connected to the inlet end of the continuous flow loop and the inlet end of the pulse flow loop. The air intake loop is connected to the first inlet or the second inlet by electromagnetic control.

[0039] Preferably, an overflow valve and a check valve are sequentially arranged along the fluid flow direction on the continuous flow loop.

[0040] Preferably, a pulse valve, an overflow valve, and a check valve are sequentially arranged along the fluid flow direction on the pulse jet circuit.

[0041] Preferably, the pulsed jet circuit and the continuous jet circuit share a single fluid outlet, which is connected to the inlet end of the air intake pipe.

[0042] Preferably, the connection between the fluid outlet and the inlet end of the air inlet pipe is sealed with a hose.

[0043] Preferably, a manual ball valve and an electric ball valve are sequentially arranged along the fluid flow direction on the air intake circuit.

[0044] Secondly, the present invention provides a method of using the silo arch-breaking device described in the first aspect, the method of use comprising:

[0045] The power unit drives the arch-breaking head to reciprocate, breaking up and clearing the material in the hopper. The compressed medium is delivered into the arch-breaking head through the compressed medium conveying module. The compressed medium is sprayed out through the air holes to form a stream to flush the material in the hopper.

[0046] As a preferred embodiment of the present invention, the method of use specifically includes the following steps:

[0047] (I) The power unit drives the arch-breaking head to reciprocate in the vertical direction to break the arches and purge the material in the silo.

[0048] (II) During step (I), compressed medium is delivered into the arch-breaking head through the compressed medium delivery module, and the working state of the compressed medium delivery module is adjusted to control the compressed medium to form streams with different jet patterns.

[0049] As a preferred technical solution of the present invention, the control process of the power device driving the arch-breaking head to reciprocate in the vertical direction in step (I) includes:

[0050] (1) Gas enters one end of the pneumatic drive device through the intake pipe and the stroke intake passage. The gas drives the piston assembly to push out of the cylinder to complete one stroke. Gas at the other end of the pneumatic drive device is discharged through the exhaust pipe through the stroke exhaust passage.

[0051] (2) By switching the position of the two-position four-way solenoid valve through electromagnetic control, the gas enters one end of the pneumatic drive device through the intake pipe and the return intake passage. The gas drives the piston assembly to retract into the cylinder to complete one return stroke. The gas at the other end of the pneumatic drive device is discharged through the exhaust pipe through the return exhaust passage.

[0052] (3) Repeatedly switch the position of the two-position four-way solenoid valve to complete the alternation of the piston assembly's stroke and return stroke, thereby driving the arch-breaking head to reciprocate in the vertical direction.

[0053] As a preferred technical solution of the present invention, the compression medium in step (II) is any one or a combination of at least two of compressed air, nitrogen or water.

[0054] Preferably, in step (II), the compressed medium is controlled to form a continuous jet stream by adjusting the working state of the compressed medium delivery module.

[0055] Preferably, the control process includes:

[0056] By switching the position of the two-position four-way solenoid valve with electromagnetic control, the compressed medium flows from the intake circuit through the first inlet into the two-position three-way solenoid valve, and is discharged from the first outlet of the two-position three-way solenoid valve into the continuous flow circuit. After flowing through the overflow valve and the check valve in sequence, it is discharged from the fluid outlet. Subsequently, the compressed medium enters the interior of the arch-breaking head through the air guide pipe and the intake pipe in sequence, and is ejected from the air hole to form a continuous jet stream.

[0057] Preferably, in step (II), the compressed medium is controlled to form a pulse jet stream by adjusting the working state of the compressed medium delivery module.

[0058] Preferably, the control process includes:

[0059] The direction of the compressed medium is switched by electromagnetic control of the two-position four-way solenoid valve. The compressed medium enters the two-position three-way solenoid valve through the second inlet of the air inlet circuit, and is discharged from the second outlet of the two-position three-way solenoid valve into the pulse jet circuit. It flows through the pulse valve, the overflow valve and the check valve in sequence and is discharged from the fluid outlet. Then the compressed medium enters the interior of the arch breaker head in sequence through the air guide pipe and the air inlet pipe, and is ejected from the air hole to form a pulse jet jet.

[0060] It should be noted that the two different jet patterns target different materials being cleaned. Specifically, the pulse jet is mainly used to clean materials adhering to the walls of the hopper, while the continuous jet is mainly used to clean residual materials within the hopper. The specific jet pattern to be used should be determined by those skilled in the art based on the current state of the material.

[0061] The numerical range described in the present invention includes not only the point values ​​listed above, but also any point values ​​between the above numerical ranges that are not listed. Due to space limitations and for the sake of simplicity, the present invention no longer exhaustively lists the specific point values ​​included in the range.

[0062] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0063] (1) Based on the structure of the traditional arch-breaking device, the present invention adds a power device to take into account the dual functions of arch breaking and material purging. At the same time, the structure of the arch-breaking head has been improved so that it can be circulated with a compression medium, which can purge the residual material in the silo or the material adhering to the inner wall of the silo, thereby improving the flowability of the material in the silo.

[0064] (2) The arch-breaking device provided by the present invention can realize the reciprocating motion of the arch-breaking head in the vertical direction while the arch-breaking head is introduced into the cavity of the arch-breaking head. By switching the working state of the compressed medium conveying module, the spray pattern of the compressed medium is adjusted to form a pulse jet or a continuous jet. The pulse jet is mainly used to clean the materials adhering to the wall in the silo, and the continuous jet is mainly used to clean the residual materials in the silo. Attached Figure Description

[0065] Figure 1 A schematic diagram of the structure of a silo arch-breaking device provided in a specific embodiment of the present invention;

[0066] Figure 2 A schematic diagram of the structure of the arch-breaking head provided in a specific embodiment of the present invention;

[0067] Figure 3 A schematic diagram of the power device provided for a specific embodiment of the present invention;

[0068] Figure 4 A schematic diagram of the power device provided for a specific embodiment of the present invention;

[0069] Figure 5 A schematic diagram of the structure of a compressed medium delivery module provided in a specific embodiment of the present invention;

[0070] Figure 6 A schematic diagram of the structure of a compressed medium delivery module provided in a specific embodiment of the present invention;

[0071] Among them, 1-crossbeam; 2-power unit; 3-air guide pipe; 4-air inlet pipe; 5-arch breaking head; 6-hopper; 7-upper cone; 8-lower cone; 9-partition plate; 10-air hole; 11-discharge port; 12-flange; 13-pneumatic drive device; 14-two-position four-way solenoid valve; 15-first relief valve; 16-first ball valve; 17-second relief valve; 18-stroke air inlet passage; 19-stroke exhaust passage; 20-return air inlet passage; 21-return exhaust passage; 22-two-position three-way solenoid valve; 23-pulse valve; 24-third relief valve; 25-first check valve; 26-fourth relief valve; 27-second check valve; 28-second ball valve; 29-electric ball valve. Detailed Implementation

[0072] It should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0073] It should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0074] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0075] In one specific embodiment, a silo arch-breaking device is provided, the silo arch-breaking device as follows: Figure 1As shown, the device includes a hollow arch-breaking head 5 and a power unit 2 connected to the arch-breaking head 5. The power unit 2 is fixed on the crossbeam 1 to drive the arch-breaking head 5 to reciprocate. The shell of the arch-breaking head 5 is provided with air holes 10. The hopper arch-breaking device also includes a compressed medium conveying module connected to the arch-breaking head 5. The compressed medium is conveyed into the arch-breaking head 5 through the compressed medium conveying module. The compressed medium is sprayed out through the air holes 10 to form a stream that flushes the hopper 6.

[0076] Among them, the broken arch head 5 Figure 2 As shown, the structure includes an upper cone 7 and a lower cone 8. The bottom surface of the upper cone 7 and the bottom surface of the lower cone are connected to form a cavity structure. In this specific embodiment, an optional solution is that both the upper cone 7 and the lower cone 8 are cones or both are pyramids. At least one air hole 10 is opened circumferentially on the shell of the lower cone 8, and a discharge port 11 is opened at the tip of the lower cone 8. A partition 9 is provided on the mating surface of the upper cone 7 and the lower cone 8.

[0077] The power unit 2 is connected to the arch-breaking head 5 via the air guide pipe 3, and the outlet end of the air guide pipe 3 extends into the interior of the arch-breaking head 5. The inlet of the air guide pipe 3 is connected to the air inlet pipe 4, and the inlet end of the air inlet pipe 4 is connected to the compressed medium delivery module. The compressed medium delivered by the compressed medium delivery module is sequentially introduced into the interior of the arch-breaking head 5 through the air inlet pipe 4 and the air guide pipe 3.

[0078] Power unit 2 such as Figure 3 and Figure 4 As shown, it includes a pneumatic drive device 13, a two-position four-way solenoid valve 14, an intake pipe and an exhaust pipe. The connection relationship is as follows: the two ends of the housing of the pneumatic drive device 13 are independently connected to the two-position four-way solenoid valve 14, and the two-position four-way solenoid valve 14 is independently connected to the intake pipe and the exhaust pipe.

[0079] The pneumatic drive device 13 includes a cylinder and a piston assembly located inside it. The piston assembly is driven to reciprocate vertically within the pneumatic cylinder by switching the operating state of the two-position four-way solenoid valve 14. Further, the piston assembly specifically includes a piston and a piston rod. One end of the piston rod is connected to the piston, and the other end is connected to the air guide pipe 3. The piston rod drives the arch-breaking head 5 to reciprocate vertically via the air guide pipe 3. In this specific embodiment, the piston rod may optionally be connected to the air guide pipe 3 via a flange 12.

[0080] The two-position four-way solenoid valve 14 has an internal stroke channel and a return channel. For example... Figure 3As shown, the stroke passage includes a stroke intake passage 18 and a stroke exhaust passage 19. The stroke intake passage 18 connects the intake pipe and end A of the pneumatic drive device 13, and the stroke exhaust passage connects the exhaust pipe and end B of the pneumatic drive device 13. Gas enters end A of the pneumatic drive device 13 from the intake pipe via the stroke intake passage 18. The gas drives the piston assembly to push out of the cylinder to complete one stroke. Gas at end B of the pneumatic drive device 13 is discharged from the exhaust pipe via the stroke exhaust passage 19. Figure 4 As shown, the return passage includes a return intake passage 20 and a return exhaust passage 21. The return intake passage 20 connects the intake pipe and the B end of the pneumatic drive device 13, and the return exhaust passage 21 connects the exhaust pipe and the A end of the pneumatic drive device 13. Gas enters the B end of the pneumatic drive device 13 from the intake pipe through the return intake passage 20. The gas drives the piston assembly to retract into the cylinder to complete one return stroke. The gas at the B end of the pneumatic drive device 13 is discharged from the exhaust pipe through the return exhaust passage 21.

[0081] It should be noted that, Figure 3 and Figure 4 The diagram shows two different operating states of the two-position four-way solenoid valve 14. These two states are not mutually exclusive and require electromagnetic control of the valve's position to achieve operation. Figure 3 or Figure 4 The switching between different operating states shown further illustrates that if the two-position four-way solenoid valve 14 is in... Figure 3 When the piston assembly is in the indicated working position, it completes one stroke of piston movement. The working position of the two-position four-way solenoid valve 14 is switched to [position missing] via electromagnetic control. Figure 4 As shown, at this point, the piston assembly has completed one return piston motion, which repeats alternately. Figure 3 and Figure 4 When operating in two different positions, continuous piston motion can be completed, thereby driving the arch breaker 5 to perform reciprocating motion in the vertical direction.

[0082] The intake piping includes a main intake pipe and an overflow branch pipe. The inlet end of the overflow branch pipe is connected to the intake branch pipe. A first ball valve 16 is installed on the main intake pipe, and a second overflow valve 17 is installed on the overflow branch pipe. A first overflow valve 15 is installed on the exhaust piping.

[0083] Compressed media delivery module, such as Figure 5 and Figure 6 As shown, it includes a continuous flow stream circuit, a pulsed flow stream circuit, an intake circuit, and a two-position three-way solenoid valve 22. The inlet of the two-position three-way solenoid valve 22 is connected to the intake circuit, and the outlet of the two-position three-way solenoid valve 22 is independently connected to the continuous flow stream circuit and the pulsed flow stream circuit, respectively. By switching the working state of the two-position three-way solenoid valve 22, the intake circuit can be connected to the continuous flow stream circuit, or the intake circuit can be connected to the pulsed flow stream circuit.

[0084] The two-position three-way solenoid valve 22 includes a first inlet (i.e. Figure 5 and Figure 6 (A port in the middle), the second entrance (i.e.) Figure 5 and Figure 6 (B port in the middle), the first exit (i.e.) Figure 5 and Figure 6 C port in the middle) and the second outlet (i.e. Figure 5 and Figure 6 The first inlet (port D) and the first outlet (port C) are relatively independently connected, as are the second inlet (port B) and the second outlet (port D). The first outlet (port C) and the second outlet (port D) are respectively connected to the inlet end of the continuous jet circuit and the inlet end of the pulse jet circuit, and are connected to the first inlet (port A) or the second inlet (port B) through an electromagnetically controlled air intake circuit.

[0085] It should be noted that, Figure 5 and Figure 6 The diagram shows two different operating states of the two-position three-way solenoid valve 22. These two states are not mutually exclusive; the position of the two-position three-way solenoid valve 22 needs to be controlled electromagnetically to achieve the desired state. Figure 5 or Figure 6 The switching between different operating states shown further illustrates that if the two-position three-way solenoid valve 22 is in... Figure 5 When the working position is as shown, the intake circuit and the continuous flow circuit are connected by the two-position three-way solenoid valve 22. The gas flows from the intake circuit through the continuous flow circuit and is then ejected in a continuous jet pattern through the air hole 10 on the arch-breaking head 5. If the working position of the two-position three-way solenoid valve 22 is switched to the indicated position by electromagnetic control, the gas will be ejected in a continuous jet pattern. Figure 6 As shown, at this time, the intake circuit and the pulse jet circuit are connected by the two-position three-way solenoid valve 22. The gas flows from the intake circuit through the pulse jet circuit and is ejected in a pulse jet pattern through the air hole 10 on the arch breaker 5.

[0086] The pulsed flow path circuit is equipped with a pulse valve 23, a third overflow valve 24, and a first check valve 25 sequentially arranged along the fluid flow direction. The continuous flow path circuit is equipped with a fourth overflow valve 26 and a second check valve 27 sequentially arranged along the fluid flow direction. The pulsed flow path circuit and the continuous flow path circuit share a single fluid outlet (i.e., Figure 5 and Figure 6 The fluid outlet (E port) is sealed to the inlet end of the air intake pipe 4 via a hose. A second ball valve 28 and an electric ball valve 29 are sequentially installed along the fluid flow direction on the air intake circuit.

[0087] In another specific embodiment, the present invention provides a method of using the above-mentioned silo arch-breaking device, the method of use including:

[0088] (I) The power unit 2 drives the arch-breaking head 5 to move vertically and reciprocally to break the arches and purge the material in the hopper 6;

[0089] The following combination Figure 3 and Figure 4 The control process of the power unit 2 driving the arch-breaking head 5 to perform reciprocating motion in the vertical direction is described in detail:

[0090] (1) When the two-position four-way solenoid valve 14 is in Figure 3 At the indicated location, gas enters the A end of the pneumatic drive device 13 through the first ball valve 16 on the intake pipe and the stroke intake passage 18. The gas drives the piston assembly to push out of the cylinder to complete one stroke. The gas at the B end of the pneumatic drive device 13 flows through the stroke exhaust passage 19 and is discharged through the first overflow valve 15 on the exhaust pipe.

[0091] (2) Switch the position of the two-position four-way solenoid valve 14 to the specified position via electromagnetic control. Figure 4 At the position shown, gas enters the B end of the pneumatic drive device 13 through the first ball valve 16 on the intake pipe and the return intake passage 20. The gas-driven piston assembly retracts into the cylinder to reset and completes one return stroke. The gas at the A end of the pneumatic drive device 13 flows through the return exhaust passage 21 and the first overflow valve 15 on the exhaust pipe to be discharged.

[0092] (3) Repeatedly switch the position of the two-position four-way solenoid valve 14 to complete the alternation of the piston assembly's stroke and return, thereby driving the arch-breaking head 5 to perform vertical reciprocating motion.

[0093] (II) During step (I), compressed medium is delivered into the arch breaker 5 through the compressed medium delivery module, and the working state of the compressed medium delivery module is adjusted to control the compressed medium to form streams with different jet patterns.

[0094] In this specific embodiment, the spray patterns include both continuous spraying and pulsed spraying. The following describes the process in conjunction with... Figure 5 and Figure 6 This section provides a detailed explanation of how to control the injection pattern of the compressed medium by adjusting the operating status of the compressed medium delivery module:

[0095] (1) Combination Figure 5 This section explains how to control the continuous jet stream, specifically including:

[0096] The two-position three-way solenoid valve 22 is controlled by electromagnetic power. Figure 5At the indicated location, the compressed medium flows sequentially through the second ball valve 28 and the electric ball valve 29 set on the air inlet circuit, enters the two-position three-way solenoid valve 22 through port A, and is discharged from port C of the two-position three-way solenoid valve 22 into the continuous flow stream circuit. It then flows sequentially through the fourth overflow valve 26 and the second one-way valve 27 and is discharged from port E. Subsequently, it enters the interior of the arch-breaking head 5 through the air guide pipe 3 and the air inlet pipe 4, and is ejected from the air hole 10 to form a continuous jet stream, cleaning the residual material in the hopper 6.

[0097] (2) Combination Figure 6 This section explains how to achieve the control process of the pulse jet stream, specifically including:

[0098] The two-position three-way solenoid valve 22 is controlled by electromagnetic power. Figure 6 At the indicated location, the compressed medium flows sequentially through the second ball valve 28 and the electric ball valve 29 set on the air inlet circuit, enters the two-position three-way solenoid valve 22 through port B, and is discharged from port D of the two-position three-way solenoid valve 22 into the pulse jet circuit. It then flows sequentially through the pulse valve 23, the third overflow valve 24 and the first check valve 25 before being discharged from port E. Subsequently, it enters the interior of the arch-breaking head 5 through the air guide pipe 3 and the air inlet pipe 4, and is ejected from the air hole 10 to form a pulse jet jet, which impacts the wall-adhering material in the hopper 6.

[0099] It should be noted that the silo arch-breaking device described in the specific embodiment only includes two compressed medium injection patterns (continuous injection and pulse injection), but this does not mean that the present invention is limited to only these two injection patterns. Other types of injection patterns also fall within the protection scope of the present invention. Those skilled in the art can add different compressed medium injection circuits according to actual production needs, and only need to replace the two-position three-way solenoid valve accordingly.

[0100] The applicant declares that the above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention fall within the scope of protection and disclosure of the present invention.

Claims

1. A silo arch-breaking device that combines the dual functions of arch breaking and material clearing, characterized in that, The aforementioned silo arch breaking device includes a hollow arch breaking head and a power device that is connected to the arch breaking head in a transmission. The shell of the arch breaking head is provided with air holes, and the power device is used to drive the arch breaking head to perform reciprocating motion. The aforementioned silo arch-breaking device also includes a compressed medium conveying module connected to the arch-breaking head. The compressed medium is conveyed into the arch-breaking head through the compressed medium conveying module, and the compressed medium is ejected through the air holes to form a stream to flush the silo. The arch-breaking head includes an upper cone and a lower cone, with the bottom surface of the upper cone and the bottom surface of the lower cone forming a cavity structure; at least one air hole is opened on the shell of the lower cone along the circumferential direction; A partition is provided at the mating surface between the upper cone and the lower cone; The compressed medium delivery module includes a continuous flow circuit, a pulse flow circuit, an air intake circuit, and a two-position three-way solenoid valve. The inlet of the two-position three-way solenoid valve is connected to the air intake circuit, and the outlet of the two-position three-way solenoid valve is independently connected to the continuous flow circuit and the pulse flow circuit, respectively. By switching the working state of the two-position three-way solenoid valve, the air intake circuit can be connected to the continuous flow circuit, or the air intake circuit can be connected to the pulse flow circuit. The power unit includes a pneumatic drive device, a two-position four-way solenoid valve, an intake pipe and an exhaust pipe. The two ends of the housing of the pneumatic drive device are independently connected to the two-position four-way solenoid valve, and the two-position four-way solenoid valve is independently connected to the intake pipe and the exhaust pipe. The intake pipeline includes an intake main pipe and an overflow branch pipe. The inlet end of the overflow branch pipe is connected to the intake branch pipe. A ball valve is installed on the intake main pipe, and an overflow valve is installed on the overflow branch pipe. An overflow valve is installed on the exhaust pipeline.

2. The silo arch-breaking device according to claim 1, characterized in that, The upper and lower cones are cones.

3. The silo arch-breaking device according to claim 1, characterized in that, The upper and lower cones are pyramids.

4. The silo arch-breaking device according to claim 1, characterized in that, A discharge port is provided at the tip of the lower cone.

5. The silo arch-breaking device according to claim 1, characterized in that, The power unit is connected to the arch-breaking head via an air duct.

6. The silo arch-breaking device according to claim 5, characterized in that, The outlet end of the air duct extends into the interior of the arch-breaking head.

7. The silo arch-breaking device according to claim 5, characterized in that, An external air inlet pipe is connected to the inlet of the aforementioned air guide pipe.

8. The silo arch-breaking device according to claim 7, characterized in that, The inlet end of the air inlet pipe is connected to the compressed medium delivery module. The compressed medium delivered by the compressed medium delivery module flows sequentially through the air inlet pipe and the air guide pipe into the interior of the arch-breaking head.

9. The silo arch-breaking device according to claim 1, characterized in that, The pneumatic drive device includes a cylinder and a piston assembly located inside it.

10. The silo arch-breaking device according to claim 9, characterized in that, The piston assembly includes a piston and a piston rod. One end of the piston rod is connected to the piston, and the other end of the piston rod is connected to the air guide pipe. The piston rod drives the arch-breaking head to reciprocate in the vertical direction through the air guide pipe.

11. The silo arch-breaking device according to claim 10, characterized in that, The piston rod is connected to the air guide pipe via a flange.

12. The silo arch-breaking device according to claim 1, characterized in that, The two-position four-way solenoid valve has an internal stroke channel and a return channel.

13. The silo arch-breaking device according to claim 12, characterized in that, The stroke passage includes a stroke intake passage and a stroke exhaust passage. The stroke intake passage connects the intake pipe and one end of the pneumatic drive device, and the stroke exhaust passage connects the exhaust pipe and the other end of the pneumatic drive device. Gas enters one end of the pneumatic drive device from the intake pipe through the stroke intake passage. The gas drives the piston assembly to push out of the cylinder to complete one stroke. Gas at the other end of the pneumatic drive device is discharged from the exhaust pipe through the stroke exhaust passage.

14. The silo arch-breaking device according to claim 12, characterized in that, The return passage includes a return intake passage and a return exhaust passage. The return intake passage connects the intake pipe and one end of the pneumatic drive device, and the return exhaust passage connects the exhaust pipe and the other end of the pneumatic drive device. Gas enters one end of the pneumatic drive device from the intake pipe through the return intake passage. The gas drives the piston assembly to retract into the cylinder to complete one return stroke. Gas at the other end of the pneumatic drive device is discharged from the exhaust pipe through the return exhaust passage.

15. The silo arch-breaking device according to claim 1, characterized in that, The two-position three-way solenoid valve includes a first inlet, a second inlet, a first outlet, and a second outlet. The first inlet and the first outlet are connected independently, and the second inlet and the second outlet are also connected independently. The first outlet and the second outlet are respectively connected to the inlet end of the continuous flow loop and the inlet end of the pulse flow loop. The air intake loop is connected to the first inlet or the second inlet by electromagnetic control.

16. The silo arch-breaking device according to claim 1, characterized in that, An overflow valve and a check valve are sequentially installed along the fluid flow direction in the continuous flow loop.

17. The silo arch-breaking device according to claim 1, characterized in that, The pulse jet circuit is provided with a pulse valve, an overflow valve and a check valve in sequence along the fluid flow direction.

18. The silo arch-breaking device according to claim 1, characterized in that, The pulsed jet circuit and the continuous jet circuit share a single fluid outlet, which is connected to the inlet end of the air intake pipe.

19. The silo arch-breaking device according to claim 18, characterized in that, The connection between the fluid outlet and the inlet of the air inlet pipe is sealed with a hose.

20. The silo arch-breaking device according to claim 1, characterized in that, The air intake circuit is equipped with a manual ball valve and an electric ball valve in sequence along the fluid flow direction.

21. A method of using the silo arch-breaking device according to any one of claims 1-20, characterized in that, The method of use includes: The power unit drives the arch-breaking head to reciprocate, breaking up and clearing the material in the hopper. The compressed medium is delivered into the arch-breaking head through the compressed medium conveying module. The compressed medium is sprayed out through the air holes to form a stream to flush the material in the hopper.

22. The method of use according to claim 21, characterized in that, The method of use specifically includes the following steps: (I) The power unit drives the arch-breaking head to reciprocate in the vertical direction to break the arches and purge the material in the silo; (II) During step (I), compressed medium is delivered into the arch-breaking head through the compressed medium delivery module, and the working state of the compressed medium delivery module is adjusted to control the compressed medium to form streams with different jet patterns.

23. The method of use according to claim 22, characterized in that, The control process in step (I) for the power unit to drive the arch-breaking head to reciprocate in the vertical direction includes: (1) Gas enters one end of the pneumatic drive device through the intake pipe and the stroke intake passage. The gas drives the piston assembly to push out of the cylinder to complete one stroke. Gas at the other end of the pneumatic drive device is discharged through the exhaust pipe through the stroke exhaust passage. (2) By switching the position of the two-position four-way solenoid valve through electromagnetic control, the gas enters one end of the pneumatic drive device through the intake pipe and the return intake passage. The gas drives the piston assembly to retract into the cylinder to complete one return. The gas at the other end of the pneumatic drive device is discharged through the exhaust pipe through the return exhaust passage. (3) Repeatedly switch the position of the two-position four-way solenoid valve to complete the alternation of the piston assembly's stroke and return stroke, thereby driving the arch-breaking head to reciprocate in the vertical direction.

24. The method of use according to claim 22, characterized in that, The compression medium in step (II) is any one or a combination of at least two of compressed air, nitrogen, or water.

25. The method of use according to claim 23, characterized in that, In step (II), the working state of the compressed medium delivery module is adjusted to control the compressed medium to form a continuous jet stream.

26. The method of use according to claim 25, characterized in that, The control process includes: By switching the position of the two-position four-way solenoid valve with electromagnetic control, the compressed medium flows from the intake circuit through the first inlet into the two-position three-way solenoid valve, and is discharged from the first outlet of the two-position three-way solenoid valve into the continuous flow stream circuit. After flowing through the overflow valve and the check valve in sequence, it is discharged from the fluid outlet. Subsequently, the compressed medium enters the interior of the arch-breaking head through the air guide pipe and the intake pipe in sequence, and is ejected from the air hole to form a continuous jet stream.

27. The method of use according to claim 23, characterized in that, In step (II), the working state of the compressed medium delivery module is adjusted to control the compressed medium to form a pulse jet stream.

28. The method of use according to claim 27, characterized in that, The control process includes: The direction of the compressed medium is switched by electromagnetic control of the two-position four-way solenoid valve. The compressed medium enters the two-position three-way solenoid valve through the second inlet of the air inlet circuit, and is discharged from the second outlet of the two-position three-way solenoid valve into the pulse jet circuit. It flows through the pulse valve, the overflow valve and the check valve in sequence and is discharged from the fluid outlet. Then the compressed medium enters the interior of the arch breaker head in sequence through the air guide pipe and the air inlet pipe, and is ejected from the air hole to form a pulse jet jet.

Images