Separated-bin unblocking system and hopper assembly
By installing an air blowing component at the connection between the main hopper and the sub-hopper, high-pressure air pulse airflow is used to blow away the material in the sub-hopper, which solves the material blockage problem, improves the clearing effect, and avoids the impact on material conveying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI KANGDI ELECTRIC POWER SCI & TECH
- Filing Date
- 2025-07-15
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, materials, especially wet materials, are prone to blockage at the connection between the main hopper and the sub-hopper, resulting in poor unblocking effect and affecting material conveying.
An air blowing assembly is installed at the connection between the main hopper and the sub-hopper. Air is blown into the sub-hopper through the air supply pipe and the air outlet structure. High-pressure air is used to generate pulse airflow and air scouring to weaken the adhesion of materials and achieve unblocking.
It effectively avoids impacting material conveying, improves the unblocking effect, reduces the space occupied inside the hopper, and improves the unblocking efficiency.
Smart Images
Figure CN224241776U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hopper unblocking technology, and in particular to a compartment unblocking system and hopper assembly. Background Technology
[0002] Currently, in material diversion systems in coal-fired power plants or other industries, sub-compartment hoppers are usually connected to the side wall of the main hopper, and material diversion is achieved through the main hopper and the sub-compartment hoppers.
[0003] However, when materials pass through the connection between the main hopper and the sub-hopper, blockages are prone to occur, especially with wet materials. To clear these blockages, mechanical unblocking mechanisms such as push plates are usually installed at the connection between the main hopper and the sub-hopper. These mechanisms push materials toward the sub-hopper to clear the blockage. However, these mechanical unblocking mechanisms are located inside the hopper, occupying internal space and potentially affecting material transport, resulting in poor unblocking performance.
[0004] Therefore, a compartmentalized unblocking system is provided to solve the aforementioned problems existing in the prior art. Utility Model Content
[0005] The purpose of this invention is to provide a compartmentalized unblocking system and hopper assembly to solve the problems existing in the prior art, avoid affecting material conveying, and improve the unblocking effect.
[0006] To achieve the above objectives, this utility model provides the following solution:
[0007] This utility model provides a compartment clearing system, including an air blowing component. The air blowing component can be installed at the connection between the main hopper and the compartment hopper, and the air blowing component can blow air toward the compartment hopper to sweep and push the material in the compartment hopper.
[0008] Preferably, the air blowing assembly includes an air supply pipe and an air outlet structure. The air supply pipe is also connected to an air source for supplying air. The air supply pipe is connected to multiple air outlet structures, and the air outlets of the air outlet structures are arranged facing the compartment hopper.
[0009] Preferably, the air supply pipe is an arc-shaped pipe, which is arranged around the connection between the main hopper and the sub-compartment hopper, and multiple air outlet structures are arranged at intervals on the air supply pipe;
[0010] The arc-shaped tube is arranged in multiple layers from bottom to top, and each layer of the arc-shaped tube is provided with multiple air outlet structures at intervals, and the arc-shaped tubes in adjacent layers are connected.
[0011] Preferably, each of the air outlet structures is connected to the corresponding air supply pipe via an electronically controlled valve.
[0012] Preferably, the electrically controlled valve is a pulse valve, and the air source includes a compressed air tank for storing high-pressure air, which generates a pulsed airflow through the pulse valve.
[0013] Preferably, the air outlet of the air outlet structure is a flat air outlet, and the flat air outlet is oriented toward the compartment hopper.
[0014] Preferably, the air outlet structure includes a nozzle housing, a gas channel is provided inside the nozzle housing, an air inlet is provided on the outer side of the nozzle housing, the air inlet is connected to the gas channel and is connected to the air supply pipe, the air outlet is provided at the bottom of the nozzle housing, the air outlet is connected to the gas channel, and the inner side of the nozzle housing is flush with the inner wall of the main hopper.
[0015] Preferably, the nozzle housing includes an outer layer plate, a core plate, and an inner layer plate arranged sequentially from the outside to the inside. The outer layer plate has an air inlet, and the bottom of the core plate has an opening corresponding to the air inlet, so that a gas channel is formed between the outer layer plate and the inner layer plate, and the gas channel communicates with the air inlet. The bottom of the inner layer plate, the bottom of the core plate, and the outer layer plate together form the air outlet.
[0016] The inner side of the inner layer plate is flush with the inner wall of the main hopper, and the bottom of the outer layer plate is fixed to the main hopper, with the bottom inner side of the outer layer plate also flush with the inner wall of the main hopper.
[0017] Preferably, the air outlet structure includes an air jet pipe, the air outlet of which is disposed facing the sub-compartment hopper, and the air outlet is flush with the inner wall of the main hopper.
[0018] This utility model also provides a hopper assembly, including the compartment clearing system described above.
[0019] The present invention achieves the following technical advantages over the prior art:
[0020] The compartment clearing system of this utility model mainly includes an air blowing assembly. This assembly can be installed at the connection between the main hopper and the compartment hopper, and it blows air towards the compartment hopper to sweep and push the material inside. By using the air blowing assembly to sweep and push the material in the compartment hopper, this utility model avoids occupying internal space of the hopper compared to installing mechanical unblocking mechanisms such as push plates inside the hopper, thus avoiding impact on material conveying and improving the clearing effect. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the hopper assembly in an embodiment of the present invention;
[0023] Figure 2 This is an enlarged schematic diagram of the air blowing assembly in an embodiment of this utility model;
[0024] Figure 3 This is a schematic diagram of the installation of an air outlet structure in an embodiment of this utility model;
[0025] Figure 4 for Figure 3 A schematic diagram of the central air outlet structure;
[0026] Figure 5 for Figure 3 Schematic diagram of the fit between the outer layer plate and the core plate of the central air outlet structure;
[0027] Figure 6 This is a schematic diagram of the installation of another air outlet structure in an embodiment of this utility model.
[0028] In the diagram: 1-Main hopper, 2-Divider hopper, 3-Blowing assembly, 4-Air supply pipe, 5-Air outlet structure, 6-Nozzle housing, 601-Outer plate, 602-Core plate, 603-Inner plate, 604-Air inlet, 605-Opening, 7-Air jet pipe. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] The purpose of this invention is to provide a compartmentalized unblocking system and hopper assembly to solve the problems existing in the prior art, avoid affecting material conveying, and improve the unblocking effect.
[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0032] Example 1
[0033] like Figures 1-6 As shown, this embodiment provides a compartment clearing system, which mainly includes an air blowing component 3. The air blowing component 3 can be set at the connection between the main hopper 1 and the compartment hopper 2, and the air blowing component 3 can blow air toward the compartment hopper 2 to sweep and push the material in the compartment hopper 2.
[0034] In this embodiment, the air blowing component 3 blows air toward the compartment hopper 2 to sweep and push the material in the compartment hopper 2. Compared with setting up mechanical unblocking mechanisms such as push plates in the hopper, it can avoid occupying the internal space of the hopper, thereby avoiding the impact on material conveying and improving the unblocking effect.
[0035] In this embodiment, it should be noted that the hopper can be selected as needed. It can be a coal hopper for transporting raw coal in a thermal power plant, but it is not limited to a coal hopper. It can also be a hopper for transporting other materials, such as a hopper for transporting building materials like cement or for transporting grain.
[0036] In this embodiment, the air blowing assembly 3 mainly includes an air supply pipe 4 and an air outlet structure 5. The air supply pipe 4 is also connected to an air source for supplying air. The air supply pipe 4 is connected to multiple air outlet structures 5. The air outlet of each air outlet structure 5 is set towards the compartment hopper 2. Through the combined action of multiple air outlet structures 5, the material is blown and pushed to improve the unblocking effect.
[0037] In this embodiment, the air supply pipe 4 is preferably an arc-shaped pipe, arranged above the connection between the main hopper 1 and the sub-hopper 2, and the air supply pipe 4 is provided with multiple air outlet structures 5 at intervals; furthermore, the arc-shaped pipe is arranged in multiple layers from bottom to top, and each layer of the arc-shaped pipe is provided with multiple air outlet structures 5 at intervals. By setting multiple layers of air outlet structures 5 working together, the unblocking effect is improved; wherein, the adjacent layers of arc-shaped pipes are connected to each other, and the arc-shaped pipes are connected to the air source through connecting pipes.
[0038] In this embodiment, each of the air outlet structures 5 is connected to the corresponding air supply pipe 4 through an electrically controlled valve. The electrically controlled valve can realize the individual control of each air outlet structure 5. The electrically controlled valve can be selected according to specific working needs, such as a pulse valve or a conventional solenoid valve.
[0039] In a preferred embodiment, the electrically controlled valve is a pulse valve, and the air source includes a compressed air tank for storing high-pressure gas. The outlet of the compressed air tank is connected to the air supply pipe 4 via a connecting pipe. The compressed air tank can provide high-pressure gas to achieve high-pressure purging and improve the unblocking effect. The high-pressure air (0.4-0.8MPa) can be quickly released through the pulse valve, generating an instantaneous pressure peak (up to several times the normal pressure) in the blocked area, impacting the material agglomerates. Moreover, the high-speed airflow washes the contact surface between the material and the hopper wall, weakening the adhesion force, and the shock wave causes high-frequency vibration of the equipment wall, assisting the material to slide off.
[0040] In this embodiment, the top of the compressed air tank is equipped with a pressure relief valve (pressure relief pressure ≤ 1.1 times the rated pressure) to ensure safety, and the bottom of the compressed air tank is equipped with a drain valve for daily sewage discharge.
[0041] Furthermore, the pulse valve is also connected to a control device (preferably a PLC controller), through which the pulse period, width, and sequence (e.g., interval of 5-20 seconds, pulse duration of 0.1-0.5 seconds) can be set; and the control device is also connected to a smart touch screen, which facilitates operation by staff through the smart touch screen.
[0042] In this embodiment, the air supply pipe 4 and the connecting pipe can be galvanized steel pipe or stainless steel pipe to improve overall strength and rust resistance and extend service life; furthermore, in cold regions, the air supply pipe 4 and the connecting pipe are also wrapped with an insulation layer to prevent compressed air from condensing and accumulating water.
[0043] In this embodiment, the gas supply pipe 4 and the connecting pipe are also equipped with temperature sensors, which can monitor the temperature of the high-pressure gas and prevent low-temperature condensation from affecting the purging effect.
[0044] Furthermore, an air dryer (dew point ≤ -20℃) can be installed on the connecting pipe to the outlet of the compressed air tank to reduce condensation; a variable frequency air compressor can also be installed on the connecting pipe to dynamically adjust the air supply pressure according to pulse demand.
[0045] In this embodiment, the air outlet of the air outlet structure 5 is a flat air outlet, which is positioned facing the compartment hopper 2. The use of a flat air outlet in this embodiment makes the air outlet more uniform and improves the unblocking effect. Moreover, the flat air outlet can be a fan-shaped air outlet or a cone-shaped air outlet that is narrow at the top and wide at the bottom, so that the airflow can diffuse downwards, increase the range of action, and further improve the unblocking effect. Alternatively, other shapes of air outlets can be selected according to the working needs.
[0046] In this embodiment, the air outlet structure 5 may include a nozzle housing 6, which has a gas channel inside. The outer side of the nozzle housing 6 has an air inlet 604 that communicates with the gas channel and is connected to the air supply pipe 4. The bottom of the nozzle housing 6 has an air outlet that communicates with the gas channel. The inner side of the nozzle housing 6 is flush with the inner wall of the main hopper 1, which can prevent it from protruding from the inner wall of the main hopper 1 and affecting the material discharge effect.
[0047] In this embodiment, the nozzle housing 6 can be integrally formed. Alternatively, as a preferred embodiment, the nozzle housing 6 includes an outer layer plate 601, a core plate 602, and an inner layer plate 603 arranged sequentially from the outside to the inside. The outer layer plate 601 is provided with an air inlet 604, and the bottom of the core plate 602 is provided with an opening 605, which corresponds to the air inlet 604, so that a gas channel is formed between the outer layer plate 601 and the inner layer plate 603, and the gas channel communicates with the air inlet 604. The bottom of the inner layer plate 603, the bottom of the core plate 602, and the outer layer plate 601 form the air outlet. In this embodiment, the nozzle housing 6 includes an outer layer plate 601, a core plate 602, and an inner layer plate 603, which can be directly welded to form the nozzle housing 6, resulting in a simple structure and low manufacturing cost.
[0048] Furthermore, the inner side of the inner plate 603 is flush with the inner wall of the main hopper 1, and the bottom of the outer plate 601 is fixed to the main hopper 1, with the bottom inner side of the outer plate 601 flush with the inner wall of the hopper. With this arrangement, both the inner plate 603 and the outer plate 601 can be connected to the main hopper 1 (specifically, by welding), improving the connection strength. Moreover, the inner side of the inner plate 603 and the bottom inner side of the outer plate 601 are flush with the inner wall of the main hopper 1, avoiding the impact of protruding structures on material discharge. Furthermore, the bottom of the outer plate 601 is located below the air outlet, so the air is first sprayed onto the outer plate 601 and flows along it, avoiding long-term direct blowing onto the hopper sidewall and preventing damage to the hopper.
[0049] In this embodiment, it should be noted that the air outlet structure 5 is not limited to the above structure, or the air outlet structure 5 may also include an air outlet pipe, and the air outlet of the air outlet pipe is a flat air outlet.
[0050] Or, such as Figure 6As shown, the air outlet structure 5 may include an air jet pipe 7, the air outlet of which is positioned facing the sub-compartment hopper 2 and is flush with the inner wall of the main hopper 1. In this embodiment, the air outlet of the air jet pipe 7 may be elliptical, elongated, or other shapes.
[0051] In this embodiment, a blockage detection mechanism is also included. The blockage detection mechanism is used to detect whether there is blockage at the connection between the main hopper 1 and the sub-compartment hopper 2, and the blockage detection mechanism is signal-connected to the control device. When the blockage detection mechanism detects blockage at the connection between the main hopper 1 and the sub-compartment hopper 2, it transmits a signal to the control device, and the control device controls the pulse valve to work and perform pulse purging to achieve timely clearing of blockage and avoid affecting subsequent material supply.
[0052] The material blockage detection mechanism can be selected according to specific work needs. For example, it can be an image acquisition device such as a camera, which can determine whether there is a coal blockage by acquiring images inside the hopper.
[0053] This embodiment also provides a hopper assembly, including the compartment clearing system described above.
[0054] In this embodiment, the compartment clearing system can clear blockages at the connection between the main hopper 1 and the compartment hopper 2. The compartment clearing system can operate in the following manner:
[0055] Automatic operation: When the blockage detection mechanism detects blockage at the connection between the main hopper 1 and the sub-hopper 2, it transmits a signal to the control device, which automatically controls the pulse valve to perform pulse purging to achieve timely blockage removal.
[0056] The system can be started on a set time, with the start time and number of times set. The system will then control the operation of the compartment clearing system according to the set start time and number of times.
[0057] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A compartmentalized unblocking system, characterized in that: It includes an air blowing assembly, which can be disposed at the connection between the main hopper and the sub-hopper, and the air blowing assembly can blow air toward the sub-hopper to sweep and push the material in the sub-hopper.
2. The compartment clearing system according to claim 1, characterized in that: The air blowing assembly includes an air supply pipe and an air outlet structure. The air supply pipe is also connected to an air source for supplying air. The air supply pipe is connected to multiple air outlet structures, and the air outlets of the air outlet structures are oriented towards the compartment hopper.
3. The compartment clearing system according to claim 2, characterized in that: The air supply pipe is an arc-shaped pipe, which is arranged around the connection between the main hopper and the sub-compartment hopper, and multiple air outlet structures are arranged at intervals on the air supply pipe. The arc-shaped tube is arranged in multiple layers from bottom to top, and each layer of the arc-shaped tube is provided with multiple air outlet structures at intervals, and the arc-shaped tubes in adjacent layers are connected.
4. The compartment clearing system according to claim 2, characterized in that: Each of the described air outlet structures is connected to the corresponding air supply pipe via an electrically controlled valve.
5. The compartment clearing system according to claim 4, characterized in that: The electrically controlled valve is a pulse valve, and the air source includes a compressed air tank for storing high-pressure air. The high-pressure air generates a pulsed airflow through the pulse valve.
6. The compartment clearing system according to claim 2, characterized in that: The air outlet of the air outlet structure is a flat air outlet, which is oriented towards the compartment hopper.
7. The compartment clearing system according to claim 6, characterized in that: The air outlet structure includes a nozzle housing, a gas channel is provided inside the nozzle housing, an air inlet is provided on the outer side of the nozzle housing, the air inlet is connected to the gas channel and is connected to the air supply pipe, the air outlet is provided at the bottom of the nozzle housing, the air outlet is connected to the gas channel, and the inner side of the nozzle housing is flush with the inner wall of the main hopper.
8. The compartment clearing system according to claim 7, characterized in that: The nozzle housing includes an outer layer plate, a core plate, and an inner layer plate arranged sequentially from the outside to the inside. An air inlet is provided on the outer layer plate, and an opening is provided at the bottom of the core plate, which corresponds to the air inlet to form a gas channel between the outer layer plate and the inner layer plate, and the gas channel communicates with the air inlet. The bottom of the inner layer plate, the bottom of the core plate, and the outer layer plate together form the air outlet. The inner side of the inner layer plate is flush with the inner wall of the main hopper, and the bottom of the outer layer plate is fixed to the main hopper, with the bottom inner side of the outer layer plate also flush with the inner wall of the main hopper.
9. The compartment clearing system according to claim 2, characterized in that: The air outlet structure includes an air jet pipe, the air outlet of which is positioned facing the sub-compartment hopper and is flush with the inner wall of the main hopper.
10. A hopper assembly, characterized in that: Includes the compartment clearing system as described in any one of claims 1-9.