Jetting device for clearing blockages

Abstract

The utility model discloses a kind of jetting unblocking devices, belong to hopper unblocking technical field, including gas source, pipeline unit, hopper and blockage feedback unit, the gas source is connected with pipeline unit, the pipeline unit is connected with the hopper, the blockage feedback unit is installed in the hopper bottom;The pipeline unit includes main gas pipe, branch gas pipe, the branch gas pipe is divided into horizontal pipe and circular pipe, the circular pipe bottom is equipped with electronic pulse valve, the other end of the electronic pulse valve is equipped with air outlet pipe, the air outlet pipe is inserted into hopper, and the insertion portion of the air outlet pipe is bent along the material flow direction in hopper;The air outlet pipe air outlet selects circular air outlet or flat mouth air outlet.The utility model uses above-mentioned a kind of jetting unblocking device, detects the material flow condition in hopper by blockage feedback unit, when blocking, signal is sent to pipeline unit, then hopper is jetted unblocking, prevent hopper blockage.

Description

Technical Field

[0001] This utility model relates to the field of hopper unblocking technology, and in particular to an air jet unblocking device. Background Technology

[0002] In existing technologies, hoppers, as important equipment for material storage and conveying, are widely used in the transfer process of granular and powdery materials. However, materials in hoppers are prone to bridging and blockage due to factors such as humidity, viscosity, or accumulation pressure, leading to interruption of material flow. This not only affects production efficiency but may also cause secondary problems such as equipment overload and material loss due to blockage. In severe cases, manual intervention is required, increasing operational risks and maintenance costs.

[0003] Existing hopper unblocking technologies, such as manual unblocking, mechanical knocking unblocking, or fixed-cycle air jet unblocking, have obvious drawbacks: manual unblocking is inefficient and unsafe, mechanical knocking can easily cause fatigue damage to the hopper structure, and fixed-cycle air jet unblocking lacks specificity, does not consider the actual flow state of the material, resulting in energy waste and unstable unblocking effect, and cannot accurately respond to sudden blockage situations. Summary of the Invention

[0004] The purpose of this invention is to provide an air jet unblocking device that uses a blockage feedback unit to detect the material flow in the hopper. When a blockage occurs, a signal is sent to the pipeline unit, and then air jets are used to unblock the hopper to prevent blockage.

[0005] To achieve the above objectives, this utility model provides an air jet unblocking device, including an air source, a pipeline unit, a hopper, and a blockage feedback unit. The air source is connected to the pipeline unit, the pipeline unit is connected to the hopper, and the blockage feedback unit is installed at the bottom of the hopper.

[0006] Preferably, the pipeline unit includes a main air pipe and branch air pipes. The main air pipe is connected to the air source. The main air pipe is a multi-layered pipeline arranged vertically. The main air pipe is connected to the branch air pipes. The branch air pipes are divided into horizontal pipes and circular pipes.

[0007] Preferably, a shut-off valve is installed at the connection between the main air pipe and the air source and the branch air pipe; an electronic pulse valve is installed at the bottom of the circular pipe, and an air outlet pipe is installed at the other end of the electronic pulse valve.

[0008] Preferably, the air outlet pipe is inserted into the hopper, and the inserted part of the air outlet pipe is bent in the direction of material flow in the hopper; the air outlet of the air outlet pipe can be a circular air outlet or a flat air outlet.

[0009] Furthermore, the electronic pulse valve has a signal receiving function. When the electronic pulse valve receives a signal, it opens, and the gas supplied by the air source enters the hopper through the air outlet pipe. When the gas is ejected from the circular air outlet, it blows out columnar gas, which can disperse the congested material; when the gas is ejected from the flat air outlet, it blows out fan-shaped gas, and the gas cuts the material in a knife shape.

[0010] Preferably, the blockage feedback unit includes a flow detection mechanism and a feedback mechanism. The flow detection mechanism is installed at the bottom of the hopper, and the feedback mechanism is connected to the flow detection mechanism. The flow detection mechanism includes a fan, a first bevel gear, a second bevel gear, and a drive shaft. The fan is installed at the bottom of the hopper via a mounting bracket.

[0011] Preferably, a transmission box is installed at the bottom of the mounting bracket, the fan shaft passes through the mounting bracket and is installed inside the transmission box, the first bevel gear is installed at the bottom of the fan shaft, the first bevel gear meshes with the second bevel gear for transmission, a transmission shaft is installed at the other end of the second bevel gear, and a clamp is provided at the other end of the transmission shaft, the clamp being connected to the feedback mechanism.

[0012] Preferably, the feedback mechanism includes a first protective shell and a second protective shell. The first protective shell has a baffle inside, and a ratchet disc is provided between the baffles. The ratchet disc has a through hole at its center, and a coil spring is installed in the through hole. The edge of the through hole has a limiting groove. The coil spring spindle is connected to the drive shaft chuck, and the tail of the coil spring has a limiting post. The limiting post is installed in the limiting groove, and the size of the limiting post matches the size of the limiting groove.

[0013] Preferably, a mounting block is provided between the baffles, a pawl is rotatably mounted on the mounting block, a sliding rod is provided below the pawl, and the pawl and the sliding rod are connected by a spring.

[0014] Preferably, a connecting post is installed on the other side of the ratchet disc opposite to the drive shaft, and a lead screw is installed on the other side of the connecting post. The lead screw passes through the first protective shell and is installed inside the second protective shell. A threaded block is sleeved on the outer surface of the lead screw, and the width of the threaded block matches the inner width of the second protective shell. A sensor is installed on the other side of the threaded block opposite to the connecting post, and the sensor has a signal transmission function.

[0015] Furthermore, the fan of the flow detection mechanism is driven by the material flow in the hopper. When the material flow in the hopper is normal, the material flows at a uniform speed, thereby driving the fan to rotate at a uniform speed. When the fan rotates normally, the first bevel gear and the second bevel gear on the fan shaft mesh to transmit torque to the coil spring. The ratchet disc is stationary under the action of the pawl and the spring, while the coil spring can rotate in the through hole in the ratchet disc to accumulate potential energy. When a blockage occurs in the hopper, the fan stops rotating and cannot provide torque to the coil spring. The coil spring causes the ratchet disc to drive the connecting column to rotate through the limiting post at the tail and the limiting groove on the edge of the ratchet disc, thereby driving the lead screw to rotate. This causes the threaded block to move horizontally within the second protective shell, so that the sensor on the threaded block contacts the side of the second protective shell. Then, a signal is sent to the electronic pulse valve and the control center to remind the staff and cause the air source to flow in the pipeline unit to clear the blockage.

[0016] According to the specific embodiments provided by this utility model, the following technical effects are disclosed: (1) This utility model achieves the technical effect of controlling the timing of gas delivery and injection by cooperating with the gas source and the shut-off valve, electronic pulse valve and the gas outlet pipe inserted into the hopper, thereby improving the gas utilization rate and avoiding energy waste caused by ineffective gas injection. At the same time, the main gas pipe and the branch gas pipe cooperate to achieve the technical effect of covering the internal area of ​​the hopper in multiple directions and angles, expanding the scope of blockage removal, and can be used to treat blockages in different locations of the hopper.

[0017] (2) The electronic pulse valve of this utility model works in conjunction with the air outlet pipes of different types of air outlets to achieve the ability to select the jetting form according to the degree of blockage and material characteristics: columnar gas can efficiently disperse concentrated blockage materials, fan-shaped gas can cut and separate sticky materials, improving the adaptability of clearing blockage; the insertion part of the air outlet pipe bends in the direction of material flow in the hopper to match the type of air outlet, so that the gas can be sprayed in accordance with the material flow trajectory, so that the sprayed gas will not collide with the material flow direction and cause impact, thereby improving the clearing efficiency and enhancing the direct force of clearing blockage materials.

[0018] (3) The sensor of the feedback mechanism of this utility model works directly with the electronic pulse valve, so that the blockage clearing action responds quickly after the blockage signal is transmitted, realizing the automatic closed-loop control from blockage identification to blockage clearing, shortening the blockage duration and reducing material accumulation loss.

[0019] (4) This utility model provides power to the fan of the flow detection mechanism through the material flow, and can realize flow monitoring without an additional power source, thereby reducing the energy consumption of the equipment. At the same time, it simplifies the structure of the detection mechanism and reduces the number of failure points. The coil spring, ratchet disc and pawl work together to achieve the technical effect of accumulating potential energy when the material is flowing normally and quickly releasing potential energy to drive the ratchet disc to rotate when blocked, ensuring that subsequent transmission and signal feedback actions can be triggered after blockage, and improving the timeliness of blockage response.

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the jet unblocking device of this utility model; Figure 2 yes Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 yes Figure 2 Enlarged structural diagram at point B; Figure 4 This is a cross-sectional structural schematic diagram of an embodiment of the jet unblocking device of this utility model; Figure 5 yes Figure 4 Enlarged structural diagram at point C; Figure 6 This is a schematic diagram of the flow detection mechanism of an embodiment of the jet unblocking device of this utility model; Figure 7 yes Figure 5 Enlarged structural diagram at point D; Figure 8 This is a schematic diagram of the internal structure of the first protective shell of an embodiment of the jet unblocking device of this utility model; Figure 9 This is a schematic diagram of the transmission shaft structure of an embodiment of the jet unclogging device of this utility model.

[0022] Figure Labels 1. Air source; 2. Main air pipe; 3. Branch air pipe; 31. Horizontal pipe; 32. Circular pipe; 33. Shut-off valve; 34. Electronic pulse valve; 35. Air outlet pipe; 4. Blockage feedback unit; 41. Flow detection mechanism; 411. Fan; 412. First bevel gear; 413. Second bevel gear; 414. Drive shaft; 415. Chuck; 42. Feedback mechanism; 421. First protective shell; 422. Second protective shell; 423. Ratchet disc; 4231. Limiting groove; 424. Coil spring; 4241. Limiting post; 425. Pawl; 426. Spring; 427. Connecting post; 428. Lead screw; 429. Threaded block; 5. Hopper. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] Example 1 like Figure 1 As shown, this utility model provides an air jet unblocking device, including an air source 1, a pipeline unit, a hopper 5, and a blockage feedback unit 4. The air source 1 is connected to the pipeline unit, the pipeline unit is connected to the hopper 5, and the blockage feedback unit 4 is installed at the bottom of the hopper 5.

[0026] like Figure 2 , Figure 3 As shown, the pipeline unit includes a main air pipe 2 and a branch air pipe 3. The main air pipe 2 is connected to the air source 1. The main air pipe 2 is a multi-layered pipeline arranged vertically. The main air pipe 2 is connected to the branch air pipe 3. The branch air pipe 3 is divided into a horizontal pipe 31 and a circular pipe 32.

[0027] A shut-off valve 33 is installed at the connection points of the main air pipe 2 with the air source 1 and the branch air pipes 3. The number of layers of branch air pipes 3 that can be cleared is controlled by the opening and closing of the shut-off valve 33. When only the shut-off valve 33 of a specific layer of branch air pipes 3 is opened, it is a fixed-point clearing; when the shut-off valve 33 of multiple layers of branch air pipes 3 is opened, it is a multi-layer comprehensive clearing. Several electronic pulse valves 34 are installed at the bottom of the circular pipe 32, and an air outlet pipe 35 is installed at the other end of the electronic pulse valve 34.

[0028] like Figure 4 , Figure 5 , Figure 7 As shown, the vent pipe 35 is inserted into the hopper 5, and the inserted part of the vent pipe 35 bends in the direction of the hopper 5, with the bending direction being in the direction of material flow. The vent outlet of the vent pipe 35 can be either a circular vent outlet or a flat vent outlet.

[0029] The electronic pulse valve 34 has a signal receiving function. When the electronic pulse valve 34 receives a signal, it opens and the gas supplied by the gas source 1 enters the hopper 5 through the gas outlet pipe 35 via the electronic pulse valve 34. When the gas is ejected from the circular air outlet, it blows out columnar gas, which can disperse the congested material. When the gas is ejected from the flat air outlet, it blows out fan-shaped gas, which cuts the material in a knife shape.

[0030] like Figure 6 , Figure 7 , Figure 8 As shown, the blockage feedback unit 4 includes a flow detection mechanism 41 and a feedback mechanism 42. The flow detection mechanism 41 is installed at the bottom of the hopper 5, and the feedback mechanism 42 is connected to the flow detection mechanism 41. The flow detection mechanism 41 includes a fan 411, a first bevel gear 412, a second bevel gear 413, and a drive shaft 414. The bottom of the fan 411 has a fan shaft, and the center of the mounting frame has a mounting seat. The inner diameter of the mounting seat matches the diameter of the fan shaft. The fan shaft is installed at the bottom of the hopper 5 through the mounting seat at the center of the mounting frame.

[0031] A transmission box is installed at the bottom of the mounting bracket. The fan shaft passes through the mounting base and is installed inside the transmission box. A first bevel gear 412 is installed at the bottom of the fan shaft, and the first bevel gear 412 meshes with a second bevel gear 413 for transmission. A transmission shaft 414 is installed at the other end of the second bevel gear 413. Figure 9 As shown, the other end of the drive shaft 414 is provided with a clamp 415, which is connected to the feedback mechanism 42.

[0032] like Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the feedback mechanism 42 includes a first protective shell 421 and a second protective shell 422. The first protective shell 421 is provided with a baffle, and a ratchet disc 423 is provided between the baffles. A through hole is provided at the center of the ratchet disc 423, and a coil spring 424 is installed in the through hole. A limiting groove 4231 is provided at the edge of the through hole. The coil spring spindle is connected to the chuck 415 of the transmission shaft 414, and a limiting post 4241 is provided at the tail of the coil spring 424. The limiting post 4241 is installed in the limiting groove 4231, and the size of the limiting post 4241 matches the size of the limiting groove 4231.

[0033] like Figure 8 As shown, a mounting block is also provided between the baffles. A pawl 425 is rotatably mounted on the mounting block. A sliding rod is provided below the pawl 425. The pawl 425 and the sliding rod are connected by a spring 426. The ratchet disc 423 can only rotate in one direction through the cooperation of the spring 426 and the pawl 425.

[0034] like Figure 6 , Figure 7As shown, a connecting post 427 is mounted on the other side of the ratchet disc 423, which is connected to the drive shaft 414. A lead screw 428 is mounted on the other side of the connecting post 427. The lead screw 428 passes through the first protective shell 421 and is installed inside the second protective shell 422, which is a detachable structure. A threaded block 429 is fitted on the outer surface of the lead screw 428, and the width of the threaded block 429 matches the internal width of the second protective shell 422. A sensor is mounted on the other side of the threaded block 429, which is opposite to the connecting post 427, and the sensor has a signal transmission function.

[0035] The fan 411 of the flow detection mechanism 41 is powered by the material flow in the hopper 5. When the material flow in the hopper 5 is normal, the material flows at a uniform speed, thereby driving the fan 411 to rotate at a uniform speed. When the fan 411 rotates normally, the torque is transmitted to the coil spring 424 through the meshing of the first bevel gear 412 and the second bevel gear 413 on the fan shaft. The ratchet disc 423 is stationary under the action of the pawl 425 and the spring 426, while the coil spring 424 can rotate in the through hole in the ratchet disc 423 to accumulate potential energy. When a blockage occurs in the hopper 5, the fan 411 stops rotating. The spring 424 is provided with torque. The spring 424 cooperates with the limiting groove 4231 on the edge of the through hole on the ratchet disc 423 through the limiting post 4241 at the tail. This causes the ratchet disc 423 to drive the connecting post 427 to rotate along the pawl 425 and release potential energy, thereby driving the lead screw 428 to rotate. This causes the threaded block 429 to move horizontally within the second protective shell 422, so that the sensor on the threaded block 429 contacts the side of the second protective shell 422. Then, a signal is sent to the electronic pulse valve 34 and the control center to remind the staff and make the gas source flow in the pipeline unit to clear the blockage.

[0036] Working principle: When a blockage occurs in the hopper 5, no material flow provides power to the fan 411, and the fan 411 stops rotating. At this time, the coil spring 424 cooperates with the limiting groove 4231 on the edge of the through hole on the ratchet disc 423 through the limiting post 4241 at the tail, so that the ratchet disc 423 drives the connecting post 427 to rotate along the pawl 425 to release the potential energy accumulated when the material flow is normal. The connecting post 427 drives the lead screw 428 to rotate, so that the threaded block 429 is horizontally displaced in the second protective shell 422, so that the sensor on the threaded block 429 contacts the side of the second protective shell 422, and then sends a signal to the electronic pulse valve 34 and the control center to remind the staff and open the electronic pulse valve 34. At this time, the gas supplied by gas source 1 enters the branch gas pipe 3 from the main gas pipe 2, and is injected into the hopper 5 through the outlet pipe 35 via the electronic pulse valve 34. The flat-mouthed air outlet sprays out fan-shaped gas, which cuts the material in a knife-like shape, while the circular air outlet sprays out columnar gas, which blows away and clears the chopped blockage. After the staff arrives on site, they can first disassemble the second protective shell 422, turn the threaded block 429 back to its original position, and then reinstall the second protective shell 422. After the hopper 5 is cleared, the gas blown out of the outlet pipe 35 acts on the fan 411, and the fan 411 continues to transmit torque to the coil spring 424 to accumulate potential energy for release when the blockage occurs again.

[0037] Therefore, this utility model adopts the above-mentioned jet unblocking device, which detects the material flow in the hopper through the blockage feedback unit. When a blockage occurs, a signal is sent to the pipeline unit, and then jet unblocking is performed on the hopper to prevent blockage.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A jet-assisted unblocking device, characterized in that: It includes an air source, a pipeline unit, a hopper, and a blockage feedback unit. The air source is connected to the pipeline unit, the pipeline unit is connected to the hopper, and the blockage feedback unit is installed at the bottom of the hopper. The pipeline unit includes a main air pipe and branch air pipes. The branch air pipes are divided into horizontal pipes and circular pipes. An electronic pulse valve is installed at the bottom of the circular pipe, and an air outlet pipe is installed at the other end of the electronic pulse valve. The air outlet pipe is inserted into the hopper, and the inserted part of the air outlet pipe is bent in the direction of material flow in the hopper. The air outlet of the air outlet pipe is selected as a circular air outlet or a flat air outlet.

2. The jet-assisted unblocking device according to claim 1, characterized in that: The main air pipe is connected to the air source. The main air pipe is a multi-layered pipe arranged vertically. The main air pipe is connected to the branch air pipes.

3. The jet-assisted unblocking device according to claim 2, characterized in that: The main air pipe is equipped with shut-off valves at the connection points with the air source and branch air pipes.

4. The jet-assisted unblocking device according to claim 1, characterized in that: The blockage feedback unit includes a flow detection mechanism and a feedback mechanism. The flow detection mechanism is installed at the bottom of the hopper, and the feedback mechanism is connected to the flow detection mechanism. The flow detection mechanism includes a fan, a first bevel gear, a second bevel gear, and a drive shaft. The fan is installed at the bottom of the hopper via a mounting bracket.

5. The jet-assisted unblocking device according to claim 4, characterized in that: A transmission box is installed at the bottom of the mounting bracket. The fan shaft passes through the mounting bracket and is installed inside the transmission box. The first bevel gear is installed at the bottom of the fan shaft. The first bevel gear meshes with the second bevel gear for transmission. A transmission shaft is installed at the other end of the second bevel gear. A clamp is provided at the other end of the transmission shaft. The clamp is connected to the feedback mechanism.

6. The jet-assisted unblocking device according to claim 5, characterized in that: The feedback mechanism includes a first protective shell and a second protective shell. The first protective shell has a baffle inside, and a ratchet disc is provided between the baffles. The ratchet disc has a through hole at its center, and a coil spring is installed in the through hole. The edge of the through hole has a limiting groove. The coil spring spindle is connected to the drive shaft chuck, and the tail of the coil spring has a limiting post. The limiting post is installed in the limiting groove, and the size of the limiting post matches the size of the limiting groove.

7. The jet-assisted unblocking device according to claim 6, characterized in that: An installation block is provided between the baffles. A pawl is rotatably mounted on the installation block. A sliding rod is provided below the pawl. The pawl and the sliding rod are connected by a spring.

8. The jet-assisted unblocking device according to claim 7, characterized in that: A connecting post is installed on the other side of the ratchet disc, which is connected to the drive shaft. A lead screw is installed on the other side of the connecting post. The lead screw passes through the first protective shell and is installed inside the second protective shell. A threaded block is sleeved on the outer surface of the lead screw, and the width of the threaded block matches the inner width of the second protective shell.

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