Closed unloading device for unloading coal bunker
The dust collection box and water tank system of the enclosed unloading device solves the problem of coal ash scattering, achieving dual protection of environmental protection and personnel health, and preventing equipment blockage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PUYANG CITY HONGYU PRESSURE VESSEL
- Filing Date
- 2025-02-14
- Publication Date
- 2026-04-28
AI Technical Summary
Most existing coal bunker unloading devices are open-type, causing coal ash to be dispersed into the air during transportation and unloading, polluting the environment and endangering the health of workers.
A closed unloading device was designed, which utilizes a dust collection box and a water tank system. A fan draws in airflow and carries carbon ash into the water tank for adsorption. The combination of moving blocks and pushing blocks prevents the holes from clogging, thus achieving effective airflow filtration and carbon ash adsorption.
It effectively reduces carbon ash emissions, lowers environmental pollution and health hazards to workers, and prevents the holes from becoming clogged and affecting airflow.
Smart Images

Figure CN224172041U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coal bunker unloading technology, and in particular relates to a closed unloading device for coal bunker unloading. Background Technology
[0002] The coal bunker is located at the connection between the uphill (downhill) mining area and the main transport roadway. Its function is to regulate and buffer the contradiction between mining area production and main roadway transportation, ensuring balanced and continuous production in the mining area; shorten loading time, improve the turnover rate of locomotives and mine cars, and increase the throughput capacity of the yard;
[0003] Most existing coal bunkers are open, which causes coal dust to be dispersed into the air due to vibration during conveying or unloading, thus polluting the environment. In addition, workers inevitably inhale the dust when loading, which can cause harm to their health. To address this, we have provided a closed unloading device for coal bunkers. Utility Model Content
[0004] The purpose of this utility model is to provide a closed unloading device for coal bunker unloading. By sending an airflow containing carbon ash into a water tank, and then using the water in the tank to adsorb the carbon ash, the emission of carbon ash is reduced. This solves the problem that existing coal ash will be dispersed into the air due to vibration, thus polluting the environment, and workers will inevitably inhale it during loading, thus causing damage to their health.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a closed unloading device for unloading coal bunkers, including a dust collection box. A drop box is fixedly connected to the front of the dust collection box. An air inlet is opened on the front of the air outlet. A motor is fixedly connected inside the dust collection box. A rotating shaft is fixedly connected to the output end of the motor through a coupling. A fan is fixedly connected to the outer surface of the front of the rotating shaft. A flexible hose is fixedly connected inside the dust collection box.
[0007] The outer surface of the end of the hose away from the fan is slidably connected to the inner wall of the dust collection box. The end of the hose away from the fan passes through the dust collection box and extends into the interior. A counterweight is fixedly connected to the end of the hose away from the fan. A water tank is snapped onto the back of the dust collection box. The inner wall of the water tank is in contact with the bottom of the counterweight. An air outlet is opened on the top of the dust collection box. A support frame is fixedly connected to the top of the dust collection box. An extension rod is slidably connected to the left side of the support frame. By drawing external airflow into the dust collection box, carbon ash is carried into the water tank, allowing the water to adsorb the carbon ash.
[0008] Furthermore, a threaded rod is rotatably connected inside the dust collection box. The bottom of the threaded rod passes through the dust collection box and extends into the interior. A movable block is threadedly connected to the outer surface of the threaded rod. A slide rod is slidably connected to the end of the movable block away from the threaded rod. The top and bottom of the slide rod are fixedly connected to the inner wall of the dust collection box, respectively. The movement of the movable block drives the push block to move, so that it can clean the holes at different heights of the baffle.
[0009] Furthermore, a knob is fixedly connected to the top outer surface of the threaded rod, and a pressing groove is opened inside the moving block. There are a number of pressing grooves. A pushing block is slidably connected to the inner wall of the pressing groove. A spring is fixedly connected to the back of the pushing block. The back of the spring is fixedly connected to the inner wall of the pressing groove. The pushing block is pushed out by the spring rebound, so that it enters the hole to clean the hole.
[0010] Furthermore, a baffle is fixedly connected to the back of the drop box, a hopper is fixedly connected to the top of the drop box, a closed tube is fixedly connected to the right side of the drop box, and a second motor is fixedly connected to the left side of the drop box. The output end of the second motor is fixedly connected to a rotating shaft via a coupling. The right side of the rotating shaft passes through the drop box and extends into the closed tube. A conveying blade is fixedly connected to the outer surface of the rotating shaft. A discharge port is opened at the bottom right side of the closed tube. The outer surface of the conveying blade is adapted to the inner wall of the closed tube. By sending the material to the right side of the closed tube, it is discharged through the discharge pipe.
[0011] This utility model has the following beneficial effects:
[0012] 1. This utility model uses a flexible hose. When the motor starts, it drives the rotating shaft to rotate, which in turn drives the fan. When the fan rotates, the airflow enters the collection box through the air inlet, and then enters the dust collection box, carrying away the carbon ash in the collection box. The airflow entering the dust collection box then enters the counterweight through the flexible hose, and is sprayed out by the counterweight, so that it comes into contact with the water in the water tank. The water in the water tank adsorbs the carbon ash in the airflow and discharges it through the air outlet, reducing the emission of carbon ash and reducing environmental pollution.
[0013] 2. This utility model incorporates a pushing block. When the pushing block aligns with the hole in the baffle, the spring pushes the pushing block out, allowing it to fill the hole in the baffle. During this filling process, the pushing block displaces dust from the hole. Because the pushing block is spherical, as the moving block moves, the pushing block inside the hole in the baffle gradually enters the compression groove and compresses the spring. This process is repeated when another hole is reached, preventing blockage of the holes inside the baffle during prolonged use and ensuring airflow.
[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of 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.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic cross-sectional view of the left side of the dust collection box of this utility model;
[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the support frame of this utility model from the rear.
[0019] Figure 4 This is a schematic cross-sectional view of the top of the movable block of this utility model;
[0020] Figure 5 This is a front cross-sectional view of the falling box of this utility model.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 101. Dust collection box; 102. Air outlet; 103. Water tank; 104. Hose; 105. Counterweight; 106. Motor 1; 107. Rotating shaft; 108. Fan; 109. Threaded rod; 110. Knob; 111. Moving block; 112. Slide rod; 114. Support frame; 115. Extension rod; 116. Pushing block; 117. Spring; 118. Extrusion groove; 201. Drop box; 202. Hopper; 203. Baffle; 204. Motor 2; 205. Rotating shaft; 206. Conveying blade; 207. Discharge port; 208. Sealing pipe. Detailed Implementation
[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-5As shown, this utility model is a closed unloading device for coal bunker unloading, including a dust collection box 101, a drop box 201 fixedly connected to the front of the dust collection box 101, an air inlet opened on the front of the air outlet 102, a motor 106 fixedly connected inside the dust collection box 101, a rotating shaft 107 fixedly connected to the output end of the motor 106 through a coupling, a fan 108 fixedly connected to the outer surface of the front of the rotating shaft 107, and a flexible hose 104 fixedly connected inside the dust collection box 101.
[0025] The outer surface of the end of the hose 104 away from the fan 108 is slidably connected to the inner wall of the dustbin 101. The end of the hose 104 away from the fan 108 passes through the dustbin 101 and extends into the interior. A counterweight 105 is fixedly connected to the end of the hose 104 away from the fan 108. A water tank 103 is snapped onto the back of the dustbin 101. The inner wall of the water tank 103 is in contact with the bottom of the counterweight 105. An air outlet 102 is opened at the top of the dustbin 101. A support frame 114 is fixedly connected to the top of the dustbin 101. An extension rod 115 is slidably connected to the left side of the support frame 114. The motor 106 starts and drives the rotating shaft 107 to move forward. The airflow rotates, and then the rotating shaft 107 drives the fan 108 to rotate. When the fan 108 rotates, the airflow enters the collection box 201 through the air inlet, and then enters the dust collection box 101 through the collection box 201, carrying out the carbon ash in the collection box 201. The airflow entering the dust collection box 101 enters the counterweight 105 through the hose 104, and is sprayed out through the counterweight 105, so that it comes into contact with the water in the water tank 103. The water in the water tank 103 adsorbs the carbon ash in the airflow and discharges it through the air outlet 102, reducing the discharge of carbon ash and reducing environmental pollution.
[0026] A threaded rod 109 is rotatably connected inside the dust collection box 101. The bottom of the threaded rod 109 passes through the dust collection box 101 and extends into the interior. A movable block 111 is threadedly connected to the outer surface of the threaded rod 109.
[0027] The end of the movable block 111 away from the threaded rod 109 is slidably connected to a slide rod 112, and the top and bottom of the slide rod 112 are respectively fixedly connected to the inner wall of the dust collection box 101.
[0028] A knob 110 is fixedly connected to the top outer surface of the threaded rod 109, and an extrusion groove 118 is opened inside the moving block 111.
[0029] Several extrusion grooves 118 are provided. A push block 116 is slidably connected to the inner wall of the extrusion groove 118. A spring 117 is fixedly connected to the back of the push block 116. The back of the spring 117 is fixedly connected to the inner wall of the extrusion groove 118. When the push block 116 is aligned with the hole of the baffle 203, the spring 117 will push the push block 116 out, so that the push block 116 fills the hole of the baffle 203. When the push block 116 fills, it will push out the dust in the hole of the baffle 203. Since the push block 116 is spherical, when the moving block 111 moves, the push block 116 located inside the hole of the baffle 203 will gradually enter the extrusion groove 118 and extrude the spring 117. When it reaches another hole, this process is repeated to prevent the hole inside the baffle 203 from becoming blocked during long-term use and affecting the airflow.
[0030] A baffle 203 is fixedly connected to the back of the drop box 201, a hopper 202 is fixedly connected to the top of the drop box 201, and a closed tube 208 is fixedly connected to the right side of the drop box 201.
[0031] A second motor 204 is fixedly connected to the left side of the drop box 201. The output end of the second motor 204 is fixedly connected to a rotating shaft 205 via a coupling. The right side of the rotating shaft 205 passes through the drop box 201 and extends into the closed tube 208.
[0032] A conveying blade 206 is fixedly connected to the outer surface of the rotating shaft 205, and a discharge port 207 is opened at the bottom right side of the closed tube 208. The outer surface of the conveying blade 206 is adapted to the inner wall of the closed tube 208.
[0033] A specific application of this embodiment is as follows: The worker first places the device in the designated position, then pulls the hose 104 upwards. As the hose 104 moves upwards, the counterweight 105 moves synchronously and detaches from the water tank 103. Then, the extension rod 115 is pulled to the right to support the hose 104. The water tank 103 is then pulled out and filled with water. The hose 104 is then removed from the extension rod 115, causing the counterweight 105 to fall back into the water tank 103. Finally, coal is poured into the silo 202. Some of the coal poured into the silo 202 will fall into the water tank. The airflow enters the collection box 201, and then the motor 106 is started. The motor 106 drives the rotating shaft 107 to rotate, which in turn drives the fan 108 to rotate. When the fan 108 rotates, the airflow enters the collection box 201 through the air inlet, and then enters the dust collection box 101 through the collection box 201, carrying out the carbon ash in the collection box 201. The airflow entering the dust collection box 101 enters the counterweight 105 through the hose 104, and is sprayed out by the counterweight 105, so that it comes into contact with the water in the water tank 103, allowing the water in the water tank 103 to purify the air. The carbon ash in the flow is adsorbed, reducing carbon ash discharge and environmental pollution. Then, the knob 110 is turned, which drives the threaded rod 109 to rotate. The rotation of the threaded rod 109 then drives the moving block 111 to move upward. During the upward movement of the moving block 111, when the pushing block 116 aligns with the hole in the baffle 203, the spring 117 pushes the pushing block 116 out, allowing the pushing block 116 to fill the hole in the baffle 203. As the pushing block 116 fills, it pushes out the dust in the hole in the baffle 203. Since it is spherically shaped, when the moving block 111 moves, the pushing block 116 located inside the hole of the baffle 203 will gradually enter the extrusion groove 118 and extrude the spring 117. This process is repeated when it reaches another hole to prevent the holes inside the baffle 203 from becoming blocked during long-term use, which would affect the airflow. Then the motor 204 is started, which drives the rotating shaft 205 to rotate. The rotating shaft 205 then drives the conveying blade 206 to rotate, and the coal falling into the box 201 is conveyed to the right and discharged through the discharge port 207.
[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A closed unloading device for coal bunker unloading, comprising a dust collection box (101), wherein a drop box (201) is fixedly connected to the front of the dust collection box (101), and an air inlet is provided on the front of the air outlet (102), characterized in that: The dust collection box (101) is fixedly connected to a motor (106), and the output end of the motor (106) is fixedly connected to a rotating shaft (107) via a coupling. A fan (108) is fixedly connected to the outer surface of the rotating shaft (107), and a flexible hose (104) is fixedly connected inside the dust collection box (101). The outer surface of the end of the hose (104) away from the fan (108) is slidably connected to the inner wall of the dust collection box (101). The end of the hose (104) away from the fan (108) passes through the dust collection box (101) and extends into the interior. A counterweight (105) is fixedly connected to the end of the hose (104) away from the fan (108). A water tank (103) is snapped onto the back of the dust collection box (101). The inner wall of the water tank (103) is in contact with the bottom of the counterweight (105). An air outlet (102) is opened on the top of the dust collection box (101). A support frame (114) is fixedly connected to the top of the dust collection box (101). An extension rod (115) is slidably connected to the left side of the support frame (114).
2. The enclosed unloading device for coal bunker unloading according to claim 1, characterized in that, The dust collection box (101) is rotatably connected to a threaded rod (109). The bottom of the threaded rod (109) passes through the dust collection box (101) and extends into the interior. A movable block (111) is threadedly connected to the outer surface of the threaded rod (109).
3. The enclosed unloading device for coal bunker unloading according to claim 2, characterized in that, The movable block (111) is slidably connected to a slide rod (112) at one end away from the threaded rod (109). The top and bottom of the slide rod (112) are respectively fixedly connected to the inner wall of the dust collection box (101).
4. The enclosed unloading device for coal bunker unloading according to claim 3, characterized in that, A knob (110) is fixedly connected to the top outer surface of the threaded rod (109), and an extrusion groove (118) is provided inside the moving block (111).
5. A closed unloading device for coal bunker unloading according to claim 4, characterized in that, A plurality of extrusion grooves (118) are provided. A push block (116) is slidably connected to the inner wall of the extrusion groove (118). A spring (117) is fixedly connected to the back of the push block (116). The back of the spring (117) is fixedly connected to the inner wall of the extrusion groove (118).
6. A closed unloading device for coal bunker unloading according to claim 1, characterized in that, A baffle (203) is fixedly connected to the back of the drop box (201), a hopper (202) is fixedly connected to the top of the drop box (201), and a closed tube (208) is fixedly connected to the right side of the drop box (201).
7. A closed unloading device for coal bunker unloading according to claim 6, characterized in that, A second motor (204) is fixedly connected to the left side of the drop box (201). The output end of the second motor (204) is fixedly connected to a rotating shaft (205) via a coupling. The right side of the rotating shaft (205) passes through the drop box (201) and extends into the closed tube (208).
8. A closed unloading device for coal bunker unloading according to claim 7, characterized in that, The outer surface of the rotating shaft (205) is fixedly connected to a conveying blade (206), and the bottom right side of the closed tube (208) is provided with a discharge port (207). The outer surface of the conveying blade (206) is adapted to the inner wall of the closed tube (208).