Intelligent dust removal device of a reclaimer

Abstract

The application discloses an intelligent dust removing device of a transfer machine, which comprises a Venturi tube and a material collecting cylinder, the axis of the Venturi tube is arranged along a vertical direction, a first through hole is arranged at the throat of the Venturi tube, compressed air is connected to the upper end of the Venturi tube, a dust discharging pipe is connected to the lower end of the Venturi tube, a water pool is arranged below the Venturi tube, and the lower end of the dust discharging pipe is submerged in the water in the water pool; the material collecting cylinder is sleeved on the outer periphery of the Venturi tube and arranged along a vertical direction; the coal on the transfer machine enters the material collecting cylinder from the upper end of the gap between the Venturi tube and the material collecting cylinder, and a belt conveyor is arranged below the material collecting cylinder. In the application, the Venturi tube and the material collecting cylinder are arranged to remove the coal ash in the coal discharged by the transfer machine, and the dust discharging pipe and the water pool are arranged to automatically collect the coal ash.

Description

Technical Field

[0001] This invention relates to an intelligent dust removal device for a transfer machine, belonging to the technical field of coal mining equipment. Background Technology

[0002] Mine dust is one of the biggest occupational hazards. Workers who work in dust-polluted places for a long time will inhale a lot of dust, which will lead to pneumoconiosis.

[0003] The transfer conveyor is a key piece of equipment for transporting coal in modern mines. Its role in the three-machine system of large-scale fully mechanized mining is to transfer the coal transported by the scraper conveyor on the mining face to the belt conveyor after it is raised from the roadway floor.

[0004] Because the belt conveyor belt has a certain speed and there is a certain drop between the transfer machine and the belt, the coal blocks move in a parabolic motion during the falling process. Fine dust will be suspended and fly in the air due to air resistance and the airflow in the tunnel, and will spread with the airflow to form air pollution, which seriously threatens the health of construction workers working in the tunnel. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an intelligent dust removal device for a transfer machine, so as to solve the problems existing in the prior art.

[0006] The technical solution adopted by this invention is as follows: an intelligent dust removal device for a transfer machine, comprising a venturi tube and a collecting cylinder. The axis of the venturi tube is arranged vertically, a first through hole is provided at the throat of the venturi tube, compressed air is connected to the upper end of the venturi tube, a dust discharge pipe is connected to the lower end of the venturi tube, a water pool is provided below the venturi tube, and the lower end of the dust discharge pipe is submerged in the water pool; the collecting cylinder is sleeved on the outer periphery of the venturi tube and its axis is arranged vertically; coal on the transfer machine enters the interior of the collecting cylinder from the upper end of the gap between the venturi tube and the collecting cylinder, and a belt conveyor is installed below the collecting cylinder.

[0007] Preferably, the number of the first through holes is set to two or more and they are evenly distributed circumferentially about the axis of the venturi tube.

[0008] Preferably, a conical guide shield is installed above the venturi tube, and the lower end of the guide shield covers the upper end of the venturi tube.

[0009] Preferably, the lower end of the collecting cylinder is closed and the lower end of the collecting cylinder is flat. A turbine is rotatably connected to the inner side wall of the outlet section of the venturi tube. The axis of the turbine is arranged radially along the venturi tube. A helical shaft is rotatably connected to the bottom of the collecting cylinder. The helical shaft is driven by the turbine. A second through hole is opened on the side wall of the collecting cylinder. The second through hole is aligned with the helical shaft.

[0010] Preferably, a flap is rotatably connected to the side wall of the collecting cylinder via a rotating shaft. The rotating shaft is driven by a motor fixed to the frame. The flap can flip up and down, and the second through hole is provided at the lower end of the flap.

[0011] Preferably, a pressure sensor is installed outside the collecting cylinder below the second through hole. The coal discharged from the second through hole can press against the pressure sensor. The pressure sensor is electrically connected to the motor through a controller. When the pressure sensor is pressed, the pressure sensor controls the motor to rotate and close the flap through the controller. When the pressure sensor is not pressed, the pressure sensor controls the motor to rotate and open the flap through the controller.

[0012] Preferably, the number of the second through holes is set to two or more and they are evenly distributed circumferentially about the axial direction of the collecting cylinder.

[0013] The beneficial effects of this invention are:

[0014] 1. Compared with the prior art, the present invention can remove coal ash from the coal discharged by the transfer machine by setting a venturi tube and a collecting cylinder, and can realize the automatic collection of coal ash by setting a dust discharge pipe and a water pool.

[0015] 2. Compared with the prior art, in this invention, under normal circumstances, the flap is closed, creating a relatively sealed space between the inside of the collecting cylinder and the Venturi tube, facilitating the Venturi tube's adsorption of coal ash. The gas inside the Venturi tube drives the turbine to rotate, which in turn drives the spiral shaft to transport the coal at the bottom of the collecting cylinder through the second through-hole. When the pressure sensor is continuously pressed, the flap remains closed. When a large piece of gangue blocks the second through-hole, the pressure sensor is not pressed, and the pressure sensor, through the controller, controls the motor to rotate, opening the flap and allowing the large piece of gangue to be discharged below the flap. When coal is discharged again, the pressure sensor is pressed again, and the flap returns to the closed state. This embodiment can automatically discharge coal after dust removal and automatically discharge coal gangue. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a structural diagram showing the assembly of the motor, shaft, and flap.

[0018] The reference numerals in the accompanying drawings include: 1. Guide cover; 2. Venturi tube; 3. First through hole; 4. Collector cylinder; 5. Rotary shaft; 6. Flip plate; 7. Second through hole; 8. Pressure sensor; 9. Spiral shaft; 10. Turbine; 11. Motor; 12. Dust exhaust pipe; 13. Water tank. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1:

[0021] An intelligent dust removal device for a transfer machine includes a venturi tube 2 and a collection cylinder 4, such as Figure 1 As shown, the axis of the Venturi tube 2 is arranged vertically, and the throat of the Venturi tube 2 is provided with a first through hole 3. The number of the first through holes 3 is set to 4 and they are evenly distributed around the axis of the Venturi tube 2. The upper end of the Venturi tube 2 is connected to compressed air, and the lower end of the Venturi tube 2 is connected to a dust exhaust pipe 12. A water pool 13 is provided below the Venturi tube 2, and the lower end of the dust exhaust pipe 12 is submerged in the water inside the water pool 13.

[0022] like Figure 1 As shown, the collecting cylinder 4 is a cylindrical ring, which is fitted around the outer circumference of the venturi tube 2 and its axis is arranged vertically. The coal on the transfer machine enters the collecting cylinder 4 from the upper end of the gap between the venturi tube 2 and the collecting cylinder 4. The belt conveyor is installed below the collecting cylinder 4. In this embodiment, a conical guide cover 1 is coaxially installed above the venturi tube 2. The lower end of the guide cover 1 blocks the upper end of the venturi tube 2 to prevent coal from falling into the venturi tube 2.

[0023] Compressed air is introduced into the upper end of the Venturi tube 2, and negative pressure is generated at the throat of the Venturi tube 2. As the coal falls down along the gap, it falls to the bottom of the collection cylinder 4 under the action of gravity. The dust is drawn into the Venturi tube 2 through the first through hole 3 and discharged into the water tank 13 through the dust discharge pipe 12, thereby realizing the collection of coal ash in the coal.

[0024] like Figure 1 As shown, the lower end of the collecting cylinder 4 is closed and flat. A turbine 10 is rotatably connected to the right inner wall of the outlet section of the venturi tube 2. The axis of the turbine 10 is arranged radially along the venturi tube 2. A spiral shaft 9 is rotatably connected to the bottom of the collecting cylinder 4. The spiral shaft 9 is coaxial with the turbine 10. The left end of the spiral shaft 9 passes through the side wall of the venturi tube 2 and is rotatably and sealingly connected to the venturi tube 2. The spiral shaft 9 is driven by the turbine 10. A flap 6 is rotatably connected to the right side wall of the collecting cylinder 4 via a rotating shaft 5. Figure 2As shown, the rotating shaft 5 is driven by the motor 11 fixed on the frame. The flap 6 can flip up and down. The lower end of the flap 6 is provided with a second through hole 7, which is aligned with the screw shaft 9. A pressure sensor 8 is installed outside the collecting cylinder 4 below the second through hole 7. The coal discharged from the second through hole 7 can press the pressure sensor 8. The pressure sensor 8 is electrically connected to the motor 11 through the controller. When the pressure sensor 8 is pressed, the pressure sensor 8 controls the motor 11 to rotate through the controller, so that the flap 6 is closed. When the pressure sensor 8 is not pressed, the pressure sensor 8 controls the motor 11 to rotate through the controller, so that the flap 6 is opened.

[0025] Under normal circumstances, the flap 6 is closed, creating a relatively sealed space between the inside of the collecting cylinder 4 and the venturi tube 2, facilitating the adsorption of coal ash by the venturi tube 2. The gas inside the venturi tube 2 drives the turbine 10 to rotate, which in turn drives the spiral shaft 9 to rotate, conveying the coal at the bottom of the collecting cylinder 4 through the second through hole 7. When the pressure sensor 8 is continuously pressed, the flap 6 remains closed. When a large piece of gangue blocks the second through hole 7, the pressure sensor 8 is not pressed, and the pressure sensor 8 controls the motor 11 to rotate, causing the flap 6 to open, allowing the large piece of gangue to be discharged below the flap 6. When coal is discharged again, the pressure sensor 8 is pressed continuously again, and the flap 6 returns to the closed state. In this embodiment, automatic discharge of dust-treated coal and automatic discharge of coal gangue can be achieved.

[0026] like Figure 1 As shown, the number of second through holes 7 is set to 4 and they are evenly distributed around the axial circumference of the collecting cylinder 4. This allows for the discharge of as much coal as possible from inside the collecting cylinder 4 and increases the coal discharge rate.

[0027] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of protection of the claims.

Claims

1. An intelligent dust removal device for a transfer machine, characterized in that: The device includes a venturi tube and a collecting cylinder. The axis of the venturi tube is arranged vertically. A first through hole is provided at the throat of the venturi tube. Compressed air is connected to the upper end of the venturi tube, and a dust discharge pipe is connected to the lower end of the venturi tube. A water pool is provided below the venturi tube, and the lower end of the dust discharge pipe is submerged in the water pool. The collecting cylinder is fitted around the outer circumference of the venturi tube and its axis is arranged vertically. Coal from a transfer machine enters the collecting cylinder from the upper end of the gap between the venturi tube and the collecting cylinder. A belt conveyor is installed below the collecting cylinder. The lower end of the collecting cylinder is closed and is flat. A turbine is rotatably connected to the inner sidewall of the outlet section of the venturi tube. The axis of the turbine is arranged radially along the venturi tube. A screw shaft is rotatably connected to the bottom of the collecting cylinder and is driven by the turbine. A second through hole is provided on the sidewall of the collecting cylinder, and the second through hole is aligned with the screw shaft.

2. The intelligent dust removal device for a transfer machine according to claim 1, characterized in that: The number of the first through holes is set to two or more and they are evenly distributed circumferentially about the axis of the venturi tube.

3. The intelligent dust removal device for a transfer machine according to claim 1, characterized in that: A conical guide shield is installed above the venturi tube, and the lower end of the guide shield covers the upper end of the venturi tube.

4. The intelligent dust removal device for a transfer machine according to claim 1, characterized in that: A flap is rotatably connected to the side wall of the collecting cylinder via a rotating shaft. The rotating shaft is driven by a motor fixed to the frame. The flap can flip up and down. The second through hole is located at the lower end of the flap.

5. The intelligent dust removal device for a transfer machine according to claim 4, characterized in that: A pressure sensor is installed outside the collection cylinder below the second through hole. The coal discharged from the second through hole can press the pressure sensor. The pressure sensor is electrically connected to the motor through a controller. When the pressure sensor is pressed, the pressure sensor controls the motor to rotate and close the flap through the controller. When the pressure sensor is not pressed, the pressure sensor controls the motor to rotate and open the flap through the controller.

6. The intelligent dust removal device for a transfer machine according to claim 5, characterized in that: The number of the second through holes is set to two or more and they are evenly distributed around the axial circumference of the collecting cylinder.

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