A powder selection device for power plants

Abstract

The present invention discloses a powder selection device for power plants, which relates to the field of powder selection devices. The device comprises a main separation cylinder and a plurality of auxiliary separation cylinders, wherein a connecting sleeve is installed on the main separation cylinder, and the plurality of auxiliary separation cylinders are connected to the connecting sleeve, and two auxiliary separation cylinders located on the same side are connected to air ducts. It should be noted that, in an embodiment of the present invention, when selecting fly ash, the fly ash is effectively broken up by throwing and heating, thereby preventing the fly ash from getting damp and agglomerating into the main separation cylinder; by discharging the material intermittently, the fly ash can be dredged, thereby preventing the problem of excessive pressure on the bottom fly ash causing agglomeration and being unable to be discharged; in addition, if the humidity of the fly ash is high and the heating wire cannot dry the fly ash in time, the adapter cylinder can be closed in time to prevent more wet fly ash from entering the main separation cylinder and causing blockage in the main separation cylinder, thereby facilitating timely processing by the staff, thereby effectively avoiding losses for the power plant.

Description

Technical Field

[0001] The present invention relates to the technical field of powder selection devices, and in particular to a powder selection device used in power plants. Background Art

[0002] Fly ash, the fine ash captured from the flue gas after coal combustion, is the primary solid waste discharged from coal-fired power plants. The main oxide components of fly ash from my country's thermal power plants are SiO2, Al2O3, FeO, Fe2O3, CaO, TiO2, etc. With the development of the electric power industry, fly ash emissions from coal-fired power plants have increased annually, becoming one of the largest industrial waste streams in my country. Large amounts of untreated fly ash generate dust, polluting the atmosphere. Discharge into waterways can cause siltation, and the toxic chemicals contained in it can also harm humans and organisms. However, fly ash can be recycled, such as as a concrete admixture. Therefore, for environmental reasons, power plants require fly ash to be sorted through a powder separator for subsequent use.

[0003] It should be noted that when the powder classifier is selecting powder, it uses multiple separation drums and rotates to screen fly ash of different sizes. However, fly ash is waste discharged by power plants. Therefore, when it is stacked, it is easily affected by the environment, so that the fly ash cannot always remain dry. Even when stacked, the fly ash may clump or become sticky due to water or moisture. When these damp or water-infiltrated fly ashes enter the separation drum, they are very likely to stick to the separation drum and cannot be separated by rotation, causing the fly ash in the separation drum to continue to stick together, which not only easily causes the separation drum to be blocked, but may even cause the motor on the separation drum to overload, thereby causing equipment damage, thereby causing significant economic losses to the power plant. Summary of the Invention

[0004] The object of the present invention is to provide a powder selection device for a power plant to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A powder selection device for a power plant, comprising a main separation cylinder and a plurality of auxiliary separation cylinders, wherein a communication sleeve is installed on the main separation cylinder, and the plurality of auxiliary separation cylinders are connected to the communication sleeve. Two auxiliary separation cylinders located on the same side are connected to air ducts. A power shaft is rotatably installed on the top side of the main separation cylinder, a wedge-shaped column is installed on the top of the power shaft, a motor is installed on the top side of the main separation cylinder, and pulleys are installed on the output shaft of the motor and the power shaft, and belts are sleeved on the two pulleys. A feed cylinder is also installed on the top side of the main separation cylinder;

[0007] The active dispersing device is further included, and the active dispersing device is installed between the main separation cylinder and the feeding cylinder, and is used to disperse and separate the coal ash raw material; the active dispersing device includes a switching cylinder, the top side of which is installed on the bottom side of the feeding cylinder, and the bottom side of which is installed on the main separation cylinder, and a throwing plate is movably installed in the switching cylinder, and a plurality of discharge holes are opened on the throwing plate, and a heating wire is installed in the throwing plate;

[0008] It also includes a feed dredging mechanism, which is installed in the adapter tube and is used to dredge the coal ash raw materials in the feed tube; the feed dredging mechanism includes two blocking plates, both of which are installed in the adapter tube, and a discharge plate rotatably installed in the adapter tube is provided between the two blocking plates, and the discharge plate is used to close the outlet between the two blocking plates, and a plurality of mounting columns are installed on the top side of the discharge plate, and a plurality of dredging rods are installed on the mounting columns;

[0009] It also includes an attachment and sealing mechanism, which is installed in the adapter cylinder and is used to seal the adapter cylinder.

[0010] Furthermore, in a preferred embodiment of the present invention, the active breaking up device further comprises a lifting plate, a lifting slot is provided on one side of the adapter tube, and the lifting plate is movably installed in the lifting slot;

[0011] Sliding grooves are provided on the inner walls around the lifting groove, and the lifting plate is slidably installed in the sliding grooves.

[0012] Furthermore, in a preferred embodiment of the present invention, a mounting hole is provided on the lifting plate, a driving frame is installed in the mounting hole, and the driving frame is installed on the throwing plate;

[0013] A return spring is installed on the top side of the driving frame, and the top end of the return spring is installed on the top inner wall of the lifting slot.

[0014] Furthermore, in a preferred embodiment of the present invention, a driving groove is provided on the inclined top side of the wedge-shaped column, a driving rod is installed on the bottom side of the driving frame, the bottom end of the driving rod extends into the driving groove, and the bottom end of the driving rod and the driving groove are both arc-shaped.

[0015] Furthermore, in a preferred embodiment of the present invention, the feed dredging mechanism further comprises a telescopic rod, a telescopic sliding hole is provided on the inner wall of the adapter cylinder, and the telescopic rod is movably mounted in the telescopic sliding hole;

[0016] The telescopic rod is in contact with the bottom side of the discharge plate, and a U-shaped top pressure frame is installed at the other end of the telescopic rod.

[0017] Furthermore, in a preferred embodiment of the present invention, a return spring is sleeved on the telescopic rod, and both ends of the return spring are respectively installed on the adapter tube and the U-shaped top pressure frame, and the return spring drives the U-shaped top pressure frame to reset;

[0018] A driven shaft is installed on the top side of the wedge-shaped column, and an eccentric disk is installed on the top end of the driven shaft. The eccentric disk rotates to squeeze the U-shaped top pressure frame.

[0019] Furthermore, in a preferred embodiment of the present invention, an annular groove is formed on the plurality of discharge plates, and a connecting shaft is installed on the inner wall of the adapter cylinder, and the connecting shaft passes through the annular groove;

[0020] A torsion spring is sleeved on the connecting shaft, one end of the torsion spring is mounted on the inner wall of the annular groove, and the other end of the torsion spring is mounted on the connecting shaft.

[0021] Furthermore, in a preferred embodiment of the present invention, the attachment and sealing mechanism includes a pull-down plate, which is movably mounted on the bottom side of the adapter tube. Two sealing plates are rotatably mounted in the adapter tube, and pull rods are rotatably mounted on both sealing plates. Both pull rods are movably mounted on the pull-down plate.

[0022] Two pulling seats are rotatably mounted on the pulling rod, and the two pulling seats are respectively mounted on the pull-down plate and the closing plate;

[0023] Two pulling shafts are rotatably mounted on the pulling rod, and the two pulling shafts are respectively mounted on the two pulling seats.

[0024] Furthermore, in a preferred embodiment of the present invention, two pull-down grooves are provided on the bottom side of the adapter tube, and pull-down rods are movably installed in the two pull-down grooves;

[0025] Connecting seats are installed on both sides of the pull-down plate, and the two pull-down rods are respectively installed on the two connecting seats. The pull-down plate slides vertically in the two pull-down grooves through the two pull-down rods.

[0026] Furthermore, in a preferred embodiment of the present invention, a pull-down spring is installed on the top inner wall of the pull-down groove, and the bottom end of the pull-down spring is installed on the top end of the pull-down rod;

[0027] A heating plate is installed on the top side of the pull-down plate, and the heating plate is arranged in a cone shape.

[0028] The beneficial effects of the powder selection device for power plants proposed by the present invention are:

[0029] In the present invention, through the setting of the active dispersing device, when the fly ash is selected, the power shaft rotates to drive the wedge column to rotate. When the wedge column rotates one circle, the driving frame drives the spreading plate to move up and down once, so that the spreading plate spreads the fly ash and heats the fly ash through the heating wire at the same time, so that the fly ash is effectively dispersed, avoiding the fly ash from getting damp and agglomerated and adhering to the main separation cylinder, causing the main separation cylinder to be blocked. At the same time, the scattered fly ash can leak out through the discharge hole.

[0030] Furthermore, in the present invention, through the setting of the feed dredging mechanism, when the wedge-shaped column rotates, the driven shaft drives the eccentric disk to rotate, and the eccentric disk squeezes and contacts with the U-shaped top pressure frame, so that the discharge plate automatically opens and closes. During the rotation of the discharge plate, the multiple dredging rods are driven to move by the mounting column, thereby bringing the coal ash in the feed barrel out, which can achieve the purpose of intermittent discharging and dredge the coal ash at the same time, avoiding the problem that the coal ash cannot be dried and broken up in time due to too fast feeding, or the problem that too much coal ash is accumulated in the feed barrel, resulting in the coal ash pressure at the bottom being too high and agglomerating and unable to be discharged.

[0031] Furthermore, in the present invention, through the setting of the attachment sealing mechanism, if the humidity of the coal ash is high and the heating wire cannot dry the coal ash in time, the wet coal ash falls on the pull-down plate and is further dried by the heating plate. If the coal ash is even more moist and cannot be dried in time and adheres to the pull-down plate, the pull-down plate is forced to move downward, and the movement of the pull-down plate drives the two connecting seats to move, and the movement of the connecting seat drives the pull-down rod to move. The pull-down rod moves in the pull-down groove and pulls the pull-down spring to be stretched. At the same time, the movement of the pull-down plate drives the two pulling seats to move. The movement of the pulling seat pulls the pulling rod through the pulling shaft, and the pulling rod drives another pulling seat to move through another pulling shaft, so that the pulling seat drives the closing plate to rotate, and the two closing plates rotate to close the adapter cylinder, thereby preventing more wet coal ash from entering the main separation cylinder, causing blockage in the main separation cylinder, and facilitating timely processing by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the three-dimensional structure of a powder selection device for a power plant provided in an embodiment of the present invention;

[0033] Figure 2 A schematic top view of a powder selection device for a power plant provided in an embodiment of the present invention;

[0034] Figure 3 A schematic diagram of the structure of a powder selection device for a power plant provided by an embodiment of the present invention, wherein a feed barrel and an active breaking device and other structures are connected;

[0035] Figure 4A schematic diagram of the structure of a powder selection device for a power plant provided by an embodiment of the present invention, wherein a feed barrel and an active breaking device are connected;

[0036] Figure 5 A schematic cross-sectional view of the connection between an adapter tube and a spreading plate and other structures of a powder selection device for a power plant provided by an embodiment of the present invention;

[0037] Figure 6 A powder selection device for a power plant provided in an embodiment of the present invention Figure 5 The schematic diagram of the structure of the turning frame in part A;

[0038] Figure 7 A schematic diagram of the structure of a U-shaped top pressure frame and an eccentric disk and other structures connected to a powder selection device for a power plant provided by an embodiment of the present invention;

[0039] Figure 8 A schematic diagram of a partially broken cross-sectional structure of a powder selection device for a power plant provided by an embodiment of the present invention, wherein a discharge plate and a connecting shaft and other structures are connected;

[0040] Figure 9 A schematic diagram of a partial cross-section of the structure of a powder selection device for a power plant provided by an embodiment of the present invention, showing the connection between the adapter cylinder and the pull-down plate;

[0041] Figure 10 A schematic diagram of the fracture structure of the connection between the pulling rod and the pulling seat of a powder selection device for a power plant provided by an embodiment of the present invention.

[0042] In the figure: 1-main separation cylinder; 2-auxiliary separation cylinder; 3-connecting sleeve; 4-air duct; 5-feeding cylinder; 6-power shaft; 7-active scattering device; 701-adapter cylinder; 702-sprinkling plate; 703-lifting plate; 704-lifting slot; 705-driving frame; 706-return spring; 707-driving rod; 708-driving slot; 709-mounting hole; 710-heating wire; 711-discharging hole; 712-sliding slot; 8-feeding dredging mechanism; 801-blocking plate; 802-discharging plate; 803-mounting column; 804-dredging rod; 8 05-annular groove; 806-connecting shaft; 807-torsion spring; 808-telescopic rod; 809-U-shaped top pressure frame; 810-reset spring; 811-driven shaft; 812-eccentric disk; 813-telescopic slide hole; 9-attachment closing mechanism; 901-pull-down plate; 902-connecting seat; 903-pull-down rod; 904-pull-down groove; 905-pull-down spring; 906-closing plate; 907-pull rod; 908-pull seat; 909-pull shaft; 910-heating plate; 10-motor; 11-pulley; 12-belt; 13-wedge column. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0046] In addition, in the description of the present invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] Furthermore, the terms "horizontal," "vertical," and "perpendicular" do not necessarily imply that a component must be absolutely vertical, but rather that it can be slightly tilted. For example, "vertical" simply means that its direction is more vertical than "horizontal," and does not mean that the structure must be completely vertical, but rather that it can be slightly tilted.

[0048] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0049] Please refer to the attached manual Figure 1-10, an embodiment of the present invention provides a powder selection device for a power plant, which includes a main separation cylinder 1 and multiple auxiliary separation cylinders 2, a connecting sleeve 3 is installed on the main separation cylinder 1, and multiple auxiliary separation cylinders 2 are connected to the connecting sleeve 3, and the two auxiliary separation cylinders 2 located on the same side are connected to the air duct 4, and a power shaft 6 is rotatably installed on the top side of the main separation cylinder 1, and a wedge-shaped column 13 is installed on the top of the power shaft 6. A motor 10 is installed on the top side of the main separation cylinder 1, and pulleys 11 are installed on the output shaft of the motor 10 and the power shaft 6. The two pulleys 11 are sleeved with belts 12, and a feed cylinder 5 is also installed on the top side of the main separation cylinder 1.

[0050] Furthermore, an embodiment of the present invention provides a powder selection device for a power plant, further comprising an active dispersing device 7, which is installed between the main separation cylinder 1 and the feed cylinder 5. The active dispersing device 7 is used to disperse and separate the coal ash raw material. Specifically, the active dispersing device 7 includes a switching cylinder 701, the top side of which is installed on the bottom side of the feed cylinder 5, and the bottom side of which is installed on the main separation cylinder 1. A spreading plate 702 is movably installed in the switching cylinder 701, and a plurality of discharge holes 711 are formed on the spreading plate 702. A heating wire 710 is installed in the spreading plate 702.

[0051] It also includes a feed dredging mechanism 8, which is installed in the adapter tube 701. The feed dredging mechanism 8 is used to dredge the coal ash raw materials in the feed tube 5; specifically, the feed dredging mechanism 8 includes two blocking plates 801, and the two blocking plates 801 are both installed in the adapter tube 701. A discharge plate 802 rotatably installed in the adapter tube 701 is provided between the two blocking plates 801. The discharge plate 802 is used to close the outlet between the two blocking plates 801. A plurality of mounting columns 803 are installed on the top side of the discharge plate 802, and a plurality of dredging rods 804 are installed on the mounting columns 803.

[0052] It should be noted that, in the embodiment of the present invention, through the setting of the active disintegration device 7, when the fly ash is selected, the motor 10 starts to drive a pulley 11 to rotate, and the pulley 11 drives another pulley 11 to rotate through the belt 12, thereby driving the power shaft 6 to rotate, and the rotation of the power shaft 6 drives the wedge-shaped column 13 to rotate, and the rotation of the wedge-shaped column 13 drives the driving rod 707 to move upward through the driving groove 708, and the driving rod 707 moves to drive the driving frame 705 to move upward, and the driving frame 705 moves upward to drive the lifting plate 703 to move, and the lifting plate 703 slides in the sliding groove 712 and squeezes the return spring 706 to contract, and the lifting plate 703 always closes the lifting groove 704 during the movement to prevent the coal ash from leaking. The hopper 708 is engaged with the hopper 709 and the hopper 710 is engaged with the hopper 711. The hopper 709 is engaged with the hopper 712 and the hopper 713 is engaged with the hopper 714.

[0053] It should be further explained that, through the setting of the feed dredging mechanism 8, when the wedge-shaped column 13 rotates, the driven shaft 811 drives the eccentric disk 812 to rotate, and the narrow side of the eccentric disk 812 contacts the U-shaped top pressure frame 809 and squeezes the U-shaped top pressure frame 809 to move. The movement of the U-shaped top pressure frame 809 drives the telescopic rod 808 to move, and drives the return spring 810 to contract. The telescopic rod 808 moves and squeezes the discharge plate 802 to rotate, so that the discharge plate 802 closes the outlet between the two blocking plates 801; in addition, when the discharge plate 802 rotates, it rotates on the connecting shaft 806 through the annular groove 805, and drives the torsion spring 807 to be stressed. Therefore, during the continuous rotation process of the wedge-shaped column 13 driving the eccentric disk 812 In the process of rotation of the discharge plate 802, the multiple dredging rods 804 are driven to move through the mounting column 803, thereby bringing the coal ash in the feed barrel 5 out of the way. This can achieve the purpose of intermittent discharging and dredge the coal ash at the same time, thereby avoiding the problem that the coal ash cannot be dried and broken up in time due to too fast feeding, or the problem that too much coal ash is accumulated in the feed barrel 5, resulting in the coal ash at the bottom being too high in pressure and agglomerates and cannot be discharged.

[0054] Furthermore, a powder selection device for a power plant provided by an embodiment of the present invention also includes an attachment and sealing mechanism 9, which is installed in the adapter cylinder 701 and is used to seal the adapter cylinder 701; specifically, the attachment and sealing mechanism 9 includes a pull-down plate 901, which is movably installed on the bottom side of the adapter cylinder 701, and two closing plates 906 are rotatably installed in the adapter cylinder 701, and pull rods 907 are rotatably installed on the two closing plates 906, and the two pull rods 907 are movably installed on the pull-down plate 901.

[0055] It should be noted that, in the embodiment of the present invention, by setting the attachment sealing mechanism 9, if the humidity of the coal ash is high and the heating wire 710 cannot dry the coal ash in time, the wet coal ash falls on the pull-down plate 901 and is further dried by the heating plate 910; if the coal ash is even more moist and cannot be dried in time and adheres to the pull-down plate 901, the pull-down plate 901 is forced to move downward, and the movement of the pull-down plate 901 drives the two connecting seats 902 to move, and the movement of the connecting seat 902 drives the pull-down rod 903 to move, and the pull-down rod 903 is in the pull-down groove 904. Move, and pull the pull-down spring 905 to be stretched, and at the same time, the pull-down plate 901 moves to drive the two pulling seats 908 to move, and the pulling seat 908 moves through a pulling shaft 909 to pull the pulling rod 907 to move, and the pulling rod 907 drives another pulling seat 908 to move through another pulling shaft 909, so that the pulling seat 908 drives the closing plate 906 to rotate, and the two closing plates 906 rotate to close the adapter cylinder 701, so as to prevent more moist coal ash from entering the main separation cylinder 1 and causing blockage in the main separation cylinder 1, and it is also convenient for the staff to deal with it in time.

[0056] For further information, please refer to the attached manual. Figure 4-6 In an embodiment of the present invention, a powder selection device for a power plant is provided. The active disintegration device 7 further includes a lifting plate 703. A lifting groove 704 is defined on one side of the adapter tube 701, and the lifting plate 703 is movably mounted within the lifting groove 704. Furthermore, sliding grooves 712 are defined on the inner walls of the lifting groove 704, and the lifting plate 703 is slidably mounted within the sliding grooves 712. It should be noted that in this embodiment of the present invention, when the lifting plate 703 moves, it slides vertically within the sliding grooves 712, compressing the return spring 706 to contract. During its movement, the lifting plate 703 always closes the lifting groove 704 to prevent leakage of coal ash.

[0057] More specifically, in the embodiment of the present invention, a mounting hole 709 is provided on the lifting plate 703, a driving frame 705 is installed in the mounting hole 709, and the driving frame 705 is installed on the throwing plate 702; in addition, a return spring 706 is installed on the top side of the driving frame 705, and the top end of the return spring 706 is installed on the top inner wall of the lifting groove 704. It should be noted that in the embodiment of the present invention, when selecting fly ash, the motor 10 starts to drive one pulley 11 to rotate, the pulley 11 drives another pulley 11 to rotate through the belt 12, and then drives the power shaft 6 to rotate, the power shaft 6 rotates and drives the wedge column 13 to rotate, the wedge column 13 rotates and drives the driving rod 707 to move upward through the driving groove 708, the driving rod 707 moves and drives the driving frame 705 to move upward, the driving frame 705 moves upward and drives the lifting plate 703 to move, and at the same time, the driving frame 705 moves and drives the throwing plate 702 to move, so during the continuous rotation of the wedge column 13, Under the tensile force of the return spring 706, the driving frame 705 moves down and resets; when the lowest point of the wedge column 13 contacts the driving rod 707, the driving frame 705 is reset, thereby achieving the purpose of driving the driving frame 705 to drive the spreading plate 702 to move up and down once when the wedge column 13 rotates one circle, so that the spreading plate 702 spreads the coal ash, and heats the coal ash through the heating wire 710, so that the coal ash is effectively broken up, avoiding the coal ash from getting damp and clumping and adhering to the main separation cylinder 1, causing the main separation cylinder 1 to be blocked, and at the same time, the scattered coal ash can leak out through the discharge hole 711.

[0058] Please continue to refer to the instructions attached Figure 4-6 More specifically, in this embodiment of the present invention, a driving slot 708 is defined on the inclined top side of the wedge-shaped column 13. A driving rod 707 is mounted on the bottom side of the driving frame 705. The bottom end of the driving rod 707 extends into the driving slot 708. Both the bottom end of the driving rod 707 and the driving slot 708 are arc-shaped. It should be noted that in this embodiment of the present invention, the rotation of the wedge-shaped column 13 drives the driving rod 707 upward through the driving slot 708, and the movement of the driving rod 707 drives the driving frame 705 upward.

[0059] For further information, please refer to the attached manual. Figure 5 and Figure 7-8 In an embodiment of the present invention, a powder selection device for a power plant is provided. The feed dredging mechanism 8 also includes a telescopic rod 808. A telescopic sliding hole 813 is opened on the inner wall of the adapter cylinder 701. The telescopic rod 808 is movably installed in the telescopic sliding hole 813. In addition, the telescopic rod 808 contacts the bottom side of the discharge plate 802, and a U-shaped top pressure frame 809 is installed at the other end of the telescopic rod 808.

[0060] It should be noted that, in the embodiment of the present invention, when the wedge column 13 rotates, the driven shaft 811 drives the eccentric disk 812 to rotate, and the narrow side of the eccentric disk 812 contacts the U-shaped top pressure frame 809 and squeezes the U-shaped top pressure frame 809 to move, and the movement of the U-shaped top pressure frame 809 drives the telescopic rod 808 to move, and drives the return spring 810 to contract, and the telescopic rod 808 moves to squeeze the discharge plate 802 to rotate, so that the discharge plate 802 closes the outlet between the two blocking plates 801; in addition, when the discharge plate 802 rotates, it rotates on the connecting shaft 806 through the annular groove 805, and drives the torsion spring 807 to be stressed, so that in the process of the wedge column 13 driving the eccentric disk 812 to rotate continuously, The wide side of the eccentric disk 812 contacts the U-shaped top pressure frame 809. At this time, under the rebound force of the reset spring 810, the U-shaped top pressure frame 809 is driven to reset, so that the telescopic rod 808 is separated from the discharge plate 802. At this time, under the rebound force of the torsion spring 807, the discharge plate 802 is driven to rotate and open. During the rotation of the discharge plate 802, the multiple dredging rods 804 are driven to move through the mounting column 803, thereby bringing out the coal ash in the feed barrel 5. This can achieve the purpose of intermittent discharging and dredge the coal ash at the same time, avoiding the problem that the coal ash cannot be dried and broken up in time due to too fast feeding, or the problem that there is too much coal ash accumulated in the feed barrel 5, resulting in the coal ash pressure at the bottom being too high and agglomerating and unable to be discharged.

[0061] More specifically, in the embodiment of the present invention, a return spring 810 is sleeved on the telescopic rod 808, and the two ends of the return spring 810 are respectively mounted on the adapter tube 701 and the U-shaped pressure frame 809. The return spring 810 drives the U-shaped pressure frame 809 to reset. In addition, a driven shaft 811 is mounted on the top side of the wedge-shaped column 13, and an eccentric disk 812 is mounted on the top end of the driven shaft 811. The eccentric disk 812 rotates to squeeze the U-shaped pressure frame 809. It should be noted that in the embodiment of the present invention, when the wedge-shaped column 13 rotates, the driven shaft 811 drives the eccentric disk 812 to rotate, and the eccentric disk 812 squeezes the U-shaped pressure frame 809 to move.

[0062] Please continue to refer to the instructions attached Figure 5 and Figure 7-8More specifically, in the embodiment of the present invention, annular grooves 805 are formed on the plurality of discharge plates 802, and a connecting shaft 806 is mounted on the inner wall of the adapter cylinder 701, passing through the annular grooves 805. Furthermore, a torsion spring 807 is sleeved on the connecting shaft 806, with one end of the torsion spring 807 mounted on the inner wall of the annular groove 805 and the other end of the torsion spring 807 mounted on the connecting shaft 806. It should be noted that in the embodiment of the present invention, when the telescopic rod 808 is squeezed and moved, it forces the discharge plates 802 to rotate, causing the discharge plates 802 to close the outlet between the two blocking plates 801. Simultaneously, when the discharge plates 802 rotate, they rotate on the connecting shaft 806 through the annular grooves 805, and apply force to the torsion spring 807. Therefore, when the telescopic rod 808 is reset, the torsion spring 807's rebound force drives the discharge plates 802 to rotate and open, achieving intermittent opening of the discharge plates 802 and, in turn, intermittent feeding.

[0063] For further information, please refer to the attached manual. Figure 9-10 , an embodiment of the present invention provides a powder selection device for a power plant, wherein two pulling seats 908 are rotatably mounted on a pulling rod 907, and the two pulling seats 908 are respectively mounted on a lower pull plate 901 and a closing plate 906;

[0064] In addition, two pulling shafts 909 are rotatably mounted on the pulling rod 907, and the two pulling shafts 909 are respectively mounted on two pulling seats 908. It should be noted that in the embodiment of the present invention, the movement of the lower pull plate 901 drives the two pulling seats 908 to move, and the movement of the pulling seat 908 pulls the pulling rod 907 through one pulling shaft 909, and the pulling rod 907 drives the other pulling seat 908 to move through another pulling shaft 909, so that the pulling seat 908 drives the closing plate 906 to rotate, and the two closing plates 906 rotate to close the adapter cylinder 701.

[0065] To be more specific, in an embodiment of the present invention, two pull-down grooves 904 are provided on the bottom side of the adapter tube 701, and pull-down rods 903 are movably installed in the two pull-down grooves 904; in addition, connecting seats 902 are installed on both sides of the pull-down plate 901, and the two pull-down rods 903 are respectively installed on the two connecting seats 902, and the pull-down plate 901 slides vertically in the two pull-down grooves 904 through the two pull-down rods 903. It should be noted that, in the embodiment of the present invention, if the humidity of the coal ash is high and the heating wire 710 cannot dry the coal ash in time, the wet coal ash falls on the pull-down plate 901 and is further dried by the heating plate 910; if the coal ash is even more moist and cannot be dried in time and adheres to the pull-down plate 901, the pull-down plate 901 is forced to move downward, and at the same time, the pull-down plate 901 moves to pull the pulling rod 907 to move, and the pulling rod 907 drives the closing plate 906 to rotate, and the two closing plates 906 rotate to close the adapter cylinder 701, thereby preventing more wet coal ash from entering the main separation cylinder 1 and causing blockage in the main separation cylinder 1, and also making it easier for the staff to deal with it in time.

[0066] Please continue to refer to the instructions attached Figure 9-10 More specifically, in the embodiment of the present invention, a pull-down spring 905 is mounted on the top inner wall of the pull-down groove 904, and the bottom end of the pull-down spring 905 is mounted on the top end of the pull-down rod 903. Furthermore, a heating plate 910 is mounted on the top side of the pull-down plate 901, and the heating plate 910 is conical. It should be noted that in the embodiment of the present invention, the movement of the pull-down plate 901 drives the movement of the two connecting seats 902, and the movement of the connecting seats 902 drives the movement of the pull-down rod 903. The pull-down rod 903 moves within the pull-down groove 904, pulling the pull-down spring 905 to be stretched.

[0067] In summary, the working principle of a powder selection device for a power plant provided by an embodiment of the present invention is:

[0068] When selecting fly ash, the motor 10 starts to drive a pulley 11 to rotate, and the pulley 11 drives another pulley 11 to rotate through the belt 12, thereby driving the power shaft 6 to rotate, and the rotation of the power shaft 6 drives the wedge column 13 to rotate, and the rotation of the wedge column 13 drives the driving rod 707 to move upward through the driving groove 708, and the driving rod 707 moves to drive the driving frame 705 to move upward, and the driving frame 705 moves upward to drive the lifting plate 703 to move, and the lifting plate 703 slides in the sliding groove 712 and squeezes the return spring 706 to contract, so the lifting plate 703 always closes the lifting groove 704 during the movement to prevent the leakage of fly ash; in addition, the driving frame 705 moves to drive the throwing The scattering plate 702 moves, so during the continuous rotation of the wedge column 13, the tensile force of the return spring 706 drives the driving frame 705 to move down and reset. When the lowest point of the wedge column 13 contacts the driving rod 707, the driving frame 705 is reset, thereby achieving the purpose of driving the scattering plate 702 to move up and down once when the wedge column 13 rotates one circle, so that the scattering plate 702 scatters the coal ash, and the coal ash is heated by the heating wire 710, so that the coal ash is effectively broken up, preventing the coal ash from getting damp and clumping and adhering to the main separation cylinder 1, causing the main separation cylinder 1 to be blocked. At the same time, the scattered coal ash can leak out through the discharge hole 711;

[0069] Furthermore, when the wedge column 13 rotates, the driven shaft 811 drives the eccentric disk 812 to rotate, and the narrow side of the eccentric disk 812 contacts the U-shaped top pressure frame 809 and squeezes the U-shaped top pressure frame 809 to move. The movement of the U-shaped top pressure frame 809 drives the telescopic rod 808 to move, and drives the return spring 810 to contract. The telescopic rod 808 moves and squeezes the discharge plate 802 to rotate, so that the discharge plate 802 closes the outlet between the two blocking plates 801. At the same time, when the discharge plate 802 rotates, it rotates on the connecting shaft 806 through the annular groove 805 and drives the torsion spring 807 to be stressed. In the process of the wedge column 13 driving the eccentric disk 812 to rotate continuously, the eccentric disk 812 The wide side of the U-shaped top pressure frame 809 contacts the U-shaped top pressure frame 809. At this time, under the rebound force of the reset spring 810, the U-shaped top pressure frame 809 is driven to reset, so that the telescopic rod 808 is separated from the discharge plate 802. At this time, under the rebound force of the torsion spring 807, the discharge plate 802 is driven to rotate and open; during the rotation of the discharge plate 802, the multiple dredging rods 804 are driven to move through the mounting column 803, so that the coal ash in the feeding barrel 5 is brought out, which can achieve the purpose of intermittent discharging and dredge the coal ash at the same time, avoiding the problem that the coal ash cannot be dried and dispersed in time due to too fast feeding, or the problem that too much coal ash is accumulated in the feeding barrel 5, resulting in the coal ash pressure at the bottom being too high and agglomerating and unable to be discharged;

[0070] Furthermore, if the humidity of the coal ash is high and the heating wire 710 cannot dry the coal ash in time, the wet coal ash falls on the pull-down plate 901 and is further dried by the heating plate 910; if the coal ash is even more moist and cannot be dried in time and adheres to the pull-down plate 901, the pull-down plate 901 is forced to move downward, and the movement of the pull-down plate 901 drives the two connecting seats 902 to move, and the movement of the connecting seats 902 drives the pull-down rod 903 to move, and the pull-down rod 903 moves in the pull-down groove 904 and pulls the pull-down spring 901. 05 is stretched under stress; in addition, the movement of the lower pull plate 901 drives the two pulling seats 908 to move, and the pulling seat 908 moves through a pulling shaft 909 to pull the pulling rod 907 to move, and the pulling rod 907 drives another pulling seat 908 to move through another pulling shaft 909, so that the pulling seat 908 drives the closing plate 906 to rotate, and the two closing plates 906 rotate to close the adapter cylinder 701, so as to prevent more moist coal ash from entering the main separation cylinder 1 and causing blockage in the main separation cylinder 1, and at the same time facilitate timely processing by the staff.

[0071] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A powder selection device for a power plant, characterized in that: It includes a main separation cylinder and multiple auxiliary separation cylinders, the main separation cylinder is installed with a communication sleeve, the multiple auxiliary separation cylinders are connected to the communication sleeve, the two auxiliary separation cylinders on the same side are connected to the air duct, the top side of the main separation cylinder is rotatably installed with a power shaft, the top end of the power shaft is installed with a wedge-shaped column, the top side of the main separation cylinder is installed with a motor, the output shaft of the motor and the power shaft are both installed with pulleys, the two pulleys are sleeved with belts, and the top side of the main separation cylinder is also installed with a feed cylinder; The active dispersing device is further included, and the active dispersing device is installed between the main separation cylinder and the feeding cylinder, and is used to disperse and separate the coal ash raw material; the active dispersing device includes a switching cylinder, the top side of which is installed on the bottom side of the feeding cylinder, and the bottom side of which is installed on the main separation cylinder, and a throwing plate is movably installed in the switching cylinder, and a plurality of discharge holes are opened on the throwing plate, and a heating wire is installed in the throwing plate; It also includes a feed dredging mechanism, which is installed in the adapter tube and is used to dredge the coal ash raw materials in the feed tube; the feed dredging mechanism includes two blocking plates, both of which are installed in the adapter tube, and a discharge plate rotatably installed in the adapter tube is provided between the two blocking plates, and the discharge plate is used to close the outlet between the two blocking plates, and a plurality of mounting columns are installed on the top side of the discharge plate, and a plurality of dredging rods are installed on the mounting columns; It also includes an attachment and sealing mechanism, which is installed in the adapter cylinder and is used to seal the adapter cylinder; The active breaking up device further includes a lifting plate, a lifting slot is provided on one side of the adapter tube, and the lifting plate is movably installed in the lifting slot; Sliding grooves are provided on the inner walls around the lifting groove, and the lifting plate is slidably installed in the sliding grooves; The lifting plate is provided with a mounting hole, a driving frame is installed in the mounting hole, and the driving frame is installed on the throwing plate; A return spring is installed on the top side of the driving frame, and the top end of the return spring is installed on the top inner wall of the lifting slot; A driving groove is formed on the inclined top side of the wedge-shaped column, and a driving rod is installed on the bottom side of the driving frame. The bottom end of the driving rod extends into the driving groove, and the bottom end of the driving rod and the driving groove are both arc-shaped. The feed dredging mechanism further includes a telescopic rod, a telescopic sliding hole is opened on the inner wall of the adapter cylinder, and the telescopic rod is movably installed in the telescopic sliding hole; The telescopic rod is in contact with the bottom side of the discharge plate, and a U-shaped top pressure frame is installed at the other end of the telescopic rod; A return spring is sleeved on the telescopic rod, and both ends of the return spring are respectively installed on the adapter tube and the U-shaped top pressure frame, and the return spring drives the U-shaped top pressure frame to reset; A driven shaft is installed on the top side of the wedge-shaped column, and an eccentric disk is installed on the top end of the driven shaft. The eccentric disk rotates to squeeze the U-shaped top pressure frame.

2. A powder selection device for a power plant according to claim 1, characterized in that: An annular groove is formed on the plurality of discharge plates, and a connecting shaft is installed on the inner wall of the adapter cylinder, and the connecting shaft passes through the annular groove; A torsion spring is sleeved on the connecting shaft, one end of the torsion spring is mounted on the inner wall of the annular groove, and the other end of the torsion spring is mounted on the connecting shaft.

3. The powder selection device for a power plant according to claim 1, characterized in that: The attachment and sealing mechanism includes a pull-down plate, which is movably mounted on the bottom side of the adapter tube. Two closing plates are rotatably mounted in the adapter tube. Pull rods are rotatably mounted on the two closing plates, and the two pull rods are movably mounted on the pull-down plate. Two pulling seats are rotatably mounted on the pulling rod, and the two pulling seats are respectively mounted on the pull-down plate and the closing plate; Two pulling shafts are rotatably mounted on the pulling rod, and the two pulling shafts are respectively mounted on the two pulling seats.

4. A powder selection device for a power plant according to claim 3, characterized in that: The bottom side of the adapter tube is provided with two pull-down grooves, and a pull-down rod is movably installed in each of the two pull-down grooves; Connecting seats are installed on both sides of the pull-down plate, and the two pull-down rods are respectively installed on the two connecting seats. The pull-down plate slides vertically in the two pull-down grooves through the two pull-down rods.

5. A powder selection device for a power plant according to claim 4, characterized in that: A pull-down spring is installed on the top inner wall of the pull-down groove, and the bottom end of the pull-down spring is installed on the top end of the pull-down rod; A heating plate is installed on the top side of the pull-down plate, and the heating plate is arranged in a cone shape.

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