Dust removal and recovery device

Abstract

The utility model relates to the field of mechanical equipment, in particular to a dust removal and recovery device which comprises a base, a separation barrel is mounted on the base, a slag collecting hopper is mounted in the separation barrel, the slag collecting hopper is located on the upper portion of the separation barrel, the slag collecting hopper and the separation barrel are arranged in a spaced mode, an exhaust barrel is arranged on the upper side of the separation barrel and extends into the separation barrel, and the lower end of the exhaust barrel faces the slag collecting hopper. The air inlet pipe is inserted into the separation barrel and used for conveying airflow into the separation barrel, the air inlet pipe is inserted into the slag collecting hopper, the air inlet pipe and the slag collecting hopper are arranged in a spaced mode, the lower end of the air inlet pipe extends to the lower portion of the separation barrel, and spiral blades are installed on the outer wall of the air inlet pipe and located in the slag collecting hopper. The dust removal and recovery device can effectively separate and collect dust and coal dust generated in the coal crushing process, energy consumption is low, a filter element does not need to be used, the dust removal efficiency is improved, the operation cost is reduced, and meanwhile clean and efficient operation of the device is kept.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment, specifically to a dust removal and recycling device. Background Technology

[0002] In the coal processing industry, large pieces of coal need to be crushed to facilitate the later combustion and transportation of coal. However, this process generates a large amount of dust and powdery particles mixed in the air. These particles still have usable value. If they are not recycled, they will not only cause serious pollution to the environment, but also affect the normal operation of equipment and even pose a threat to the health of workers.

[0003] In the traditional coal crushing process, the coal is crushed using crushing equipment. The resulting powder particles are mixed with air, and the traditional dust collection and recovery equipment is not only inefficient but also often has high energy consumption and low recovery efficiency. Furthermore, the filter element, as a consumable, needs to be replaced frequently, which needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a dust collection and recovery device that does not require filter cartridges and has high coal dust recovery efficiency, addressing the above-mentioned problems.

[0005] To achieve the above objectives, this utility model discloses a dust removal and recovery device, including a base. Its structural features are as follows: a separation cylinder is installed on the base, and a slag collection hopper is installed inside the separation cylinder. The slag collection hopper is located at the upper part of the separation cylinder and spaced apart from it. An exhaust pipe is installed on the upper side of the separation cylinder, extending into the separation cylinder with its lower end facing the slag collection hopper. The device also includes an air inlet pipe inserted into the separation cylinder for supplying airflow thereto. The air inlet pipe is inserted into the slag collection hopper and spaced apart from it. The lower end of the air inlet pipe extends to the lower part of the separation cylinder. A spiral blade is installed on the outer wall of the air inlet pipe, and the spiral blade is located in the slag collection hopper.

[0006] Connect the air inlet pipe to the coal crushing device, and send the airflow into the separation cylinder via a blower. Heavier dust particles will fall onto the base. The airflow then moves upwards along the cylinder wall. Upon reaching the top of the cylinder, inclined guide vanes change the airflow direction, causing it to flow at an angle into the slag collection hopper. The spiral blades in the slag collection hopper further amplify the cyclone airflow, transforming the angled airflow into a cyclone. Under centrifugal force, the heavy coal dust is thrown against the hopper wall and moves in a circular motion. When the dust hits the baffle bars on the hopper wall, it stops rotating and falls back onto the base. The air separated from the coal dust is then transported outwards through the exhaust pipe.

[0007] The base is equipped with a slag discharge hole for discharging coal dust. A slag discharge pipe connected to the slag discharge hole is installed on the base. A slag sweeping plate for cleaning coal dust is rotatably installed on the upper part of the base. In order to prevent gas leakage, the slag discharge pipe is connected to a dust collection box. The slag sweeping plate rotates to clean the residual coal dust on the upper part of the base. The coal dust is discharged outward through the slag discharge hole.

[0008] The lower edge of the slag-sweeping plate rests against the upper part of the base, and a motor for driving the slag-sweeping plate to rotate is installed at the lower part of the base. This prevents coal dust accumulation and blockage, keeping the device clean and operating efficiently. The motor-driven rotation of the slag-sweeping plate enables automated operation and reduces the need for manual maintenance.

[0009] The slag collection hopper is funnel-shaped, and contains multiple baffles to block coal dust. These baffles are arranged in a ring and spaced apart from each other. Under centrifugal force, heavy and large coal dust particles are thrown against the hopper wall and move in a circular motion along the wall. When the coal dust touches the baffles on the hopper wall, it stops rotating and then falls into the separation cylinder.

[0010] Regarding the installation structure of the baffle bar, the baffle bar is installed on the inner wall of the slag collection hopper, and the baffle bar is installed vertically inclined along the inside of the slag collection hopper.

[0011] Regarding the installation structure of the air inlet pipe and the exhaust pipe, the upper part of the exhaust pipe is closed, the air inlet pipe is inserted into the exhaust pipe, and the air inlet pipe protrudes outward from the top of the exhaust pipe.

[0012] The top of the exhaust stack is connected to multiple exhaust pipes, which help to disperse the airflow. This improves exhaust efficiency and reduces noise and pipe wear.

[0013] A rotating rod is rotatably mounted on the upper part of the separator cylinder. Multiple rotating rods are arranged around the cylinder. Guide vanes are installed on the lower part of the rotating rods inside the separator cylinder, located above the slag collection hopper. When the airflow passes through the guide vanes, its direction of travel changes, working in conjunction with the slag collection hopper to optimize dust removal efficiency.

[0014] A directional plate is installed at the upper end of the rotating rod outside the separation cylinder. The directional plate has a groove. A transmission ring is rotatably mounted on the upper side of the separation cylinder. A directional shaft is mounted on the transmission ring to drive the rotating rod and thus adjust the tilt angle of the guide vanes. The directional shaft is slidably installed in the groove. The directional plate is connected to the directional shaft on the transmission ring via the groove, allowing the tilt angle of the rotating rod and guide vanes to be adjusted by the push-pull action of a cylinder. This enables adjustment of the airflow direction and speed according to actual needs, improving the flexibility and adaptability of the dust collection and recovery device to achieve optimal dust removal efficiency.

[0015] The drive ring is equipped with a pull plate, and a cylinder is installed on the upper part of the separator cylinder to push and pull the pull plate, thereby driving the drive ring to rotate. The piston rod of the cylinder is hinged to the pull plate. The cylinder, through the hinged piston rod, can push or pull the drive ring to rotate, and thus adjust the tilt angle of the rotating rod and guide vanes via the adjusting shaft. The pushing and pulling action of the cylinder is precise and controllable, ensuring accurate adjustment of the tilt angle of the rotating rod and guide vanes, thereby optimizing the dust removal effect.

[0016] In summary, the beneficial effects of this utility model are as follows: this device can effectively separate and collect dust and coal dust generated during the coal crushing process. It not only has low energy consumption, but also eliminates the need for filter elements, thereby improving dust removal efficiency, reducing operating costs, and maintaining the cleanliness and high efficiency of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the slag collection hopper.

[0019] Figure 3 This is a schematic diagram of the mounting structure of the helical blades;

[0020] Figure 4 for Figure 3 A magnified view of the local structure at point A;

[0021] Figure 5 This is a schematic diagram of the external structure of this utility model.

[0022] In the diagram: 1. Separation cylinder; 2. Air inlet pipe; 3. Exhaust pipe; 4. Exhaust stack; 5. Slag collection hopper; 6. Baffle bar; 7. Cylinder; 8. Base; 9. Slag sweeping plate; 10. Transmission ring; 11. Spiral blade; 12. Slag discharge pipe; 13. Adjusting plate; 14. Adjusting shaft; 15. Guide vane; 16. Slag discharge hole; 17. Motor; 18. Rotating rod; 19. Slide groove; 20. Pulling plate. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0024] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] The terms "first" and "second" 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0028] A dust collection and recovery device includes a base 8, a separation cylinder 1 mounted on the base 8, a slag collection hopper 5 installed in the separation cylinder 1, the slag collection hopper 5 being located at the upper part of the separation cylinder 1 and spaced apart from it, an exhaust pipe 4 being provided on the upper side of the separation cylinder 1, the exhaust pipe 4 extending into the separation cylinder 1 with its lower end facing the slag collection hopper 5, and an air inlet pipe 2 inserted into the separation cylinder 1 for conveying airflow therein, the air inlet pipe 2 being inserted into the slag collection hopper 5 and spaced apart from it, the lower end of the air inlet pipe 2 extending to the lower part of the separation cylinder 1, and a spiral blade 11 installed on the outer wall of the air inlet pipe 2, the spiral blade 11 being located in the slag collection hopper 5. (See attached figure) Figure 1 The air inlet pipe 2 is connected to the coal crushing device, and the airflow is sent into the separation cylinder 1 by the blower. At this time, the heavier dust will fall onto the base 8. Then the airflow moves upward along the cylinder wall of the separation cylinder 1. When the airflow reaches the top of the separation cylinder 1, the inclined guide vanes 15 will change the airflow direction, making the airflow into the slag collection hopper 5. The spiral blades 11 in the slag collection hopper 5 will further strengthen the direction of the cyclone airflow, turning the inclined airflow into a cyclone airflow. Under the action of centrifugal force, the heavy and large coal dust is thrown onto the hopper wall of the slag collection hopper 5 and moves in a circle along the hopper wall. When the coal dust touches the baffle strip 6 on the hopper wall, the coal dust stops rotating and then falls onto the base 8. The air separated from the coal dust is transported out through the exhaust pipe 4.

[0029] See attached document Figure 2The base 8 is equipped with a slag discharge hole 16 for discharging coal dust. A slag discharge pipe 12 connected to the slag discharge hole 16 is installed on the base 8. A slag sweeping plate 9 for cleaning coal dust is rotatably installed on the upper part of the base 8. To prevent gas leakage, the slag discharge pipe 12 is connected to a dust collection box. The slag sweeping plate 9 rotates to clean the residual coal dust on the upper part of the base 8, and the coal dust is discharged outward through the slag discharge hole 16. The lower edge of the slag sweeping plate 9 is attached to the upper part of the base 8. A motor 17 is installed at the lower part of the base 8 to drive the rotation of the slag sweeping plate 9, which avoids the accumulation and blockage of coal dust and keeps the device clean and efficient. The motor 17 drives the slag sweeping plate 9 to rotate, realizing automated operation and reducing the need for manual maintenance.

[0030] See attached document Figure 3 The slag collecting hopper 5 is funnel-shaped. Multiple baffles 6 are installed in the hopper 5 to block coal dust, arranged in a ring and spaced apart. Under centrifugal force, heavy and large coal dust particles are thrown against the hopper wall of the slag collecting hopper 5 and move in a circular motion along the wall. When the coal dust touches the baffles 6 on the hopper wall, it stops rotating and then falls into the separation cylinder 1. Regarding the installation structure of the baffles 6, they are installed on the inner wall of the slag collecting hopper 5, vertically inclined along the interior of the slag collecting hopper 5.

[0031] See attached document Figure 1 Appendix Figure 2 Regarding the installation structure of the air inlet pipe 2 and the exhaust pipe 4, the upper part of the exhaust pipe 4 is closed, and the air inlet pipe 2 is inserted into the exhaust pipe 4, protruding outward from the top of the exhaust pipe 4. The top of the exhaust pipe 4 is connected to an exhaust pipe 3, and multiple exhaust pipes 3 are provided. The arrangement of multiple exhaust pipes 3 helps to disperse the airflow, improving exhaust efficiency and reducing noise and pipe wear.

[0032] See attached document Figure 4 A rotating rod 18 is rotatably mounted on the upper part of the separation cylinder 1. Multiple rotating rods 18 are arranged around the cylinder. A guide vane 15 is installed on the lower part of the rotating rod 18 inside the separation cylinder 1, located above the slag collection hopper 5. When the airflow passes through the guide vane 15, its direction of travel changes, thus optimizing the dust removal effect in conjunction with the slag collection hopper 5. A directional plate 13 is installed at the upper end of the rotating rod 18 outside the separation cylinder 1. The directional plate 13 has a sliding groove 19. A transmission ring 10 is rotatably mounted on the upper side of the separation cylinder 1. A directional shaft 14 is mounted on the transmission ring 10 to drive the rotating rod 18 to rotate, thereby adjusting the tilt angle of the guide vane 15. The directional shaft 14 is slidably mounted in the sliding groove 19. The directional plate 13 is connected to the directional shaft 14 on the transmission ring 10 via the slide groove 19, allowing the tilt angle of the rotating rod 18 and the guide vane 15 to be adjusted by the push-pull action of the cylinder 7. This enables the airflow direction and speed to be adjusted according to actual needs, improving the flexibility and adaptability of the dust collection and recovery device to achieve the best dust removal effect.

[0033] See attached document Figure 3 The transmission ring 10 is equipped with a pull plate 20. A cylinder 7 is mounted on the upper part of the separating cylinder 1 to push and pull the pull plate 20, thereby rotating the transmission ring 10. The piston rod of the cylinder 7 is hinged to the pull plate 20. The cylinder 7, through its hinged piston rod, can push or pull the transmission ring 10 to rotate, thereby adjusting the tilt angle of the rotating rod 18 and the guide vane 15 via the adjusting shaft 14. The pushing and pulling action of the cylinder 7 is precise and controllable, ensuring accurate adjustment of the tilt angle of the rotating rod 18 and the guide vane 15, thus optimizing the dust removal effect.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A dust collection and recycling device, comprising a base (8), characterized in that, A separation cylinder (1) is installed on the base (8). A slag collection hopper (5) is installed in the separation cylinder (1). The slag collection hopper (5) is located at the upper part of the separation cylinder (1) and is spaced apart from it. An exhaust pipe (4) is provided on the upper side of the separation cylinder (1). The exhaust pipe (4) extends into the separation cylinder (1) and its lower end faces the slag collection hopper (5). An air inlet pipe (2) is also included, which is inserted into the separation cylinder (1) for conveying airflow therein. The air inlet pipe (2) is inserted into the slag collection hopper (5) and the two are spaced apart. The lower end of the air inlet pipe (2) extends to the lower part of the separation cylinder (1). A spiral blade (11) is installed on the outer wall of the air inlet pipe (2). The spiral blade (11) is located in the slag collection hopper (5).

2. The dust collection and recovery device as described in claim 1, characterized in that, The base (8) is provided with a slag discharge hole (16) for discharging coal dust outward, and a slag discharge pipe (12) connected to the slag discharge hole (16) is installed on the base (8). A slag sweeping plate (9) for cleaning coal dust is rotatably installed on the upper part of the base (8).

3. The dust collection and recovery device as described in claim 2, characterized in that, The lower edge of the slag-sweeping plate (9) is attached to the upper part of the base (8), and a motor (17) for driving the slag-sweeping plate (9) to rotate is installed on the lower part of the base (8).

4. The dust collection and recovery device as described in claim 1, characterized in that, The slag collection hopper (5) is funnel-shaped, and there are multiple baffles (6) in the slag collection hopper (5) used to block coal dust. The multiple baffles (6) are arranged in a ring and installed at intervals.

5. The dust collection and recovery device as described in claim 4, characterized in that, The baffle strip (6) is installed on the inner wall of the slag collection hopper (5), and the baffle strip (6) is installed vertically inclined along the inside of the slag collection hopper (5).

6. The dust collection and recovery device as described in claim 1, characterized in that, The upper part of the exhaust pipe (4) is closed, and the air inlet pipe (2) is inserted into the exhaust pipe (4). The air inlet pipe (2) extends outward from the top of the exhaust pipe (4).

7. The dust collection and recovery device as described in claim 6, characterized in that, The top of the exhaust pipe (4) is connected to an exhaust pipe (3), and multiple exhaust pipes (3) are provided.

8. The dust collection and recovery device as described in claim 1, characterized in that, A rotating rod (18) is rotatably installed on the upper part of the separation cylinder (1). The rotating rod (18) is vertically inserted into the separation cylinder (1). Multiple rotating rods (18) are arranged around the circumference. A guide vane (15) is installed on the lower part of the rotating rod (18) inside the separation cylinder (1). The guide vane (15) is located on the upper part of the slag collection hopper (5).

9. The dust collection and recovery device as described in claim 8, characterized in that, An adjusting plate (13) is installed at the upper end of the rotating rod (18) outside the separating cylinder (1). A sliding groove (19) is provided in the adjusting plate (13). A transmission ring (10) is rotatably installed on the upper side of the separating cylinder (1). An adjusting shaft (14) is installed on the transmission ring (10) to drive the rotating rod (18) to rotate and thus adjust the tilt angle of the guide vane (15). The adjusting shaft (14) is slidably installed in the sliding groove (19).

10. The dust collection and recovery device as described in claim 9, characterized in that, The transmission ring (10) is provided with a pull plate (20), and the upper part of the separation cylinder (1) is equipped with a cylinder (7) for pushing and pulling the pull plate (20) to drive the transmission ring (10) to rotate. The piston rod of the cylinder (7) is hinged to the pull plate (20).

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