Feeding device for the coupled co-combustion of solid waste in a coal-fired power plant

Abstract

Feeding device for the coupled co-incineration of solid waste in a coal-fired power plant, characterized in that it comprises a device body (1) and a support frame (20), wherein the support frame (20) is arranged at the lower end of the device body (1) and a belt is rotatably mounted on the device body (1); wherein the first end of the device body (1) is provided with a transverse plate (6) and the inner surface of the transverse plate (6) is provided with a brush (5); wherein two square plates (14) are provided on both sides of the transverse plate (6), and an insert plate (19) is fixedly provided on each side of the first end of the device body (1); wherein the insert plate (19) projects through the square plate (14) of the same side, and the insert plate (19) is rotatably connected inside to a shaft body (17), wherein the side of the shaft body (17) is fixedly connected to the rotary plate (18), and two fixed blocks (13) are provided on both sides of the square plate (14).

Description

Technical area

[0001] The present utility model belongs to the field of feeding technology in coal-fired power generation and relates in particular to a feeding device for the coupled co-combustion of solid waste in a coal-fired power plant. Background technology

[0002] Coal-fired power, an indispensable component of the energy industry, is based on the fundamental principle of grinding coal into powder and burning it in the boiler of a thermal power plant. During this process, the water in the boiler absorbs the heat generated during coal combustion, which is converted into steam with specific parameters that can be used to drive a turbine generator to generate electricity. To ensure a stable and efficient supply of coal powder to the boiler combustion chamber, the use of co-combustion and charging devices is particularly important.

[0003] Although the feeding devices available on the market can meet the basic needs of coal-fired power generation to a certain extent, many shortcomings are still revealed in the actual application process, especially in the following aspects: Bonding and accumulation of solid waste on the surface of the conveyor belt: When conveying coal powder, the traditional feeding devices are easy to bond with solid waste such as slag, dust, etc. on the surface of the conveyor belt due to the certain adhesion to the coal powder itself and the electrostatic effect generated during the conveying process. These solid waste not only affect the normal transmission of coal powder, but also may cause wear and clogging of the conveyor belt and reduce work efficiency.In addition, over time, solid waste accumulates on the surface of the conveyor belt, forming a thick layer of sediment that makes cleaning extremely difficult and increases maintenance costs and time.

[0004] Problems of rolling off solid waste and soil contamination: Considering the fluidity of coal powder, conventional feeding devices are usually designed with a certain inclination to ensure that the coal powder can slide smoothly into the combustion chamber. However, this design also brings new problems: During the conveying process, some solid waste (especially large slag) is easy to roll off the surface of the conveyor belt onto the ground or other areas due to the influence of the inclination. This not only causes environmental pollution but may also pose a safety hazard to surrounding equipment and personnel. At the same time, rolling off solid waste is also quite inconvenient to collect, resulting in additional cleanup effort and costs.

[0005] Given the above-mentioned problems, the application of conventional feeding devices in coal-fired power generation is severely limited. Therefore, it is necessary to improve and upgrade existing feeding devices to improve their working efficiency, reduce maintenance costs, reduce environmental pollution, and ensure production reliability. Contents of the utility model

[0006] The purpose of the present utility model is to overcome the deficiencies of the prior art, to provide a charging device for combined co-combustion of solid waste in a coal-fired power plant, to solve the problem that the charging surface in the prior art is easy to accumulate ash and is difficult to clean.

[0007] To achieve the above-mentioned purpose, the present utility model adopts the following technical solution: A feeding device for coupled co-combustion of solid waste in a coal-fired power plant comprises a device body and a support frame, wherein the support frame is arranged at the lower end of the device body and a belt is rotatably mounted on the device body; wherein the first end of the device body is provided with a cross plate and the inner surface of the cross plate is provided with a brush; wherein two square plates are provided on both sides of the cross plate, and an insert plate is fixedly provided on both sides of the first end of the device body; wherein the insert plate projects through the square plate of the same side, and the insert plate is rotatably connected internally to a shaft body, wherein the side of the shaft body is fixedly connected to the rotary plate, and two fixed blocks are provided on both sides of the square plate.

[0008] Further improvements of the present utility model are as follows: Preferably, an insertion slot is formed in the fixed block, and a clamping groove is provided within the insertion slot; two ends of the rotary plate are provided with clamping blocks, the rotary plate being capable of being inserted into the insertion slot, and the clamping blocks being capable of being embedded in the clamping groove. Preferably, two insertion slots are arranged on both sides of a turntable such that one is open downwards and the other upwards. Preferably, a collecting frame is provided at the second end of the device body. Preferably, the upper end of one side of the collecting frame and the device body is provided with a connecting plate. Preferably, two pairs of first mounting plates are provided at the end of the collecting frame facing the second end of the device body, and each pair of first mounting plates comprises two first mounting plates arranged opposite each other; the second end of the device body is provided with a second mounting plate, the second mounting plate being inserted into the first mounting plate, and the first mounting plate and the second mounting plate being rotatably connected to each other. Preferably, holes are formed in the first mounting plate and the second mounting plate, respectively, wherein an internally threaded cylinder is inserted into the holes, wherein a threaded rod is inserted into the internally threaded cylinder, wherein a rotary disk is fixedly connected to the end of the threaded rod. Preferably, the inner end of the internally threaded cylinder is provided with a cover. Preferably, a roller is provided at the bottom of the collecting frame. Preferably, the brush is provided with multiple layers along the direction of the cross plate from top to bottom.

[0009] Compared to the prior art, the present utility model has the following advantageous effects: The present utility model discloses a charging device for coupled co-incineration of solid waste in a coal-fired power plant, wherein, by adding a cross plate to the side surface of the device body, adding a brush to the surface of the cross plate, attaching a square plate to the side surface of the cross plate, installing an insert plate on the side surface of the device body, adding a shaft body inside the insert plate, attaching a rotating plate to the side surface of the shaft body, and adding a fixed block to the surface of the square plate, in this charging device for coupled co-incineration of solid waste in a coal-fired power plant, the cross plate is installed on the side of the device body before charging, the square plate is inserted outside the insert plate, and the shaft body is rotated.The rotation of the shaft body causes the rotating plate to rotate, so that the rotating plate can be rotated into the inside of the fixed block, so that the cross plate and the brush can be fixed at this moment, and if there is a fixed bond on the surface of the feeding device, it can be brushed directly down by the brush, so that it falls into the combustion chamber, thereby making it more convenient for cleaning.

[0010] Further, a collecting frame is added to the side surface of the device body, a connecting plate is added to the side of the collecting frame, a first mounting plate is attached to the side of the collecting frame, a second mounting plate is installed on the side surface of the device body, an internal thread cylinder is inserted into the first mounting plate and the second mounting plate, and a threaded rod is embedded in the internal thread cylinder.When using the feeding device, the collecting frame is installed on the side surface of the feeding device, the second mounting plate is inserted between the first two mounting plates, the internal thread cylinder is then inserted into the first mounting plate and the second mounting plate, and the collecting frame can be fixed by screwing the threaded rod into the inside of the internal thread cylinder, and when solid waste rolls off the surface of the feeding device, it can be directly rolled into the inside of the collecting frame, which makes it more convenient to use.

[0011] Furthermore, an insertion slot is formed in the fixed block, a clamping groove is formed within the insertion slot, and the rotary plate can be inserted into the insertion slot to prevent the rotary plate from coming off; the clamping block and the clamping groove cooperate to restrict the rotary plate in the insertion slot, and the insertion slot and the rotary plate are further locked to prevent the rotary plate from coming off the insertion slot.

[0012] Furthermore, two insertion slots are provided, one opening downward and the other opening upward, so that the rotating plate detaches from the through groove formed in the square plate when vertically arranged, and the rotating plate can be inserted into the corresponding insertion slot when rotating. Furthermore, the upper end is sealed due to the downward opening of the insertion slot, which can prevent the rotating plate from rotating outward, and the lower end is sealed due to the upward opening of the insertion slot, which can prevent the rotating plate from rotating and loosening further.

[0013] Furthermore, the second end of the device body is provided with a collecting frame for catching the material that slides down during transport.

[0014] Furthermore, the upper end of one side of the collecting frame is provided with a connecting plate, which can connect the collecting frame and the device body and prevent the material from falling from the gap between the collecting frame and the device body.

[0015] Furthermore, a first mounting plate is arranged on the collecting frame, a second mounting plate is arranged on the device body, and the first mounting plate and the second mounting plate cooperate so that the collecting frame can be connected to the device body.

[0016] Furthermore, holes are formed in the first mounting plate and the second mounting plate so that the first mounting plate and the second mounting plate can be connected in relative rotation.

[0017] Furthermore, through the detachable connection of the threaded rod and the internal thread cylinder, the threaded rod is inserted from the outer end of the internal thread cylinder into the internal thread cylinder to limit the internal thread cylinder.

[0018] Furthermore, the inner end of the internal thread cylinder is provided with a diaphragm, and an internal thread cylinder is arranged at the threaded rod end through the cooperation of its diaphragm and the rotary disk such that the internal thread cylinder can stably connect the first mounting plate and the second mounting plate.

[0019] Furthermore, a roller is provided at the bottom of the collection frame to facilitate its movement and installation. Furthermore, the brush is equipped with multiple layers to thoroughly clean the residual material on the belt. Figures Fig. 1 is a schematic structural diagram of the overall structure of the present utility model; Fig. 2 is a schematic structural diagram of the support frame of the present utility model; Fig. 3 is a schematic structural diagram of the cross plate of the present utility model; Fig. 4 is a schematic structural diagram of the role of the present utility model; Fig. 5 is a schematic structural diagram of the receiving frame of the present utility model; Fig. 6 is an enlarged view of part A in Fig. 2 of the present utility model; Fig. 7 is an enlarged view of part B in Fig. 5 of the present utility model.

[0020] Where: 1. fixture body; 2. collecting frame; 3. roller; 4. connecting plate; 5. brush; 6. cross plate; 7. first mounting plate; 8. internal thread cylinder; 9. aperture; 10. second mounting plate; 11. a threaded rod; 12. turntable; 13. fixed block; 14. square plate; 15. clamping groove; 16. clamping block; 17. shaft body; 18. turntable; 19. insert plate; 20. support frame; 21. insertion slot; 22. aperture. Specific embodiments

[0021] The present utility model is described in more detail below in conjunction with the attached drawings: The exemplary embodiments of the present utility model are described in detail below. Examples of the exemplary embodiments are illustrated in the figures, wherein identical or similar reference numerals throughout designate identical or similar elements or elements with identical or similar functions. The exemplary embodiments described below with reference to the attached drawings are exemplary and serve to explain the present utility model and are not to be understood as limiting the present utility model.

[0022] In order to better understand the purpose, structure and function of the present utility model, the feeding device for the coupled co-incineration of solid waste in a coal-fired power plant of the present utility model is described in more detail below in conjunction with the attached drawings.

[0023] As in Fig. As shown in Figures 1-7, the charging device for combined solid waste co-incineration in a coal-fired power plant of the present utility model comprises a device body 1 and a support frame 20. Two ends of the device body 1 are the first end and the second end, respectively, with the height of the first end being higher than the second end, and the device body 1 is arranged on the support frame 20. A belt configured for charging is arranged on the device body 1. Two sides of the device body 1 are provided with baffles 22 to prevent material from falling.

[0024] The first end of the device body 1 is provided with a cross plate 6, the cross plate 6 is arranged on the underside of the first end to prevent feeding of the material, the length of the cross plate 6 and the length of the device body 1 are the same, the inner surface of the cross plate 6 (towards the front side of the device body 1) is provided with several layers of brushes 5, and preferably 2-3 layers are arranged.

[0025] The two sides of the cross plate 6 are fixedly connected to the square plate 14, the square plate 14 is arranged vertically, a through groove is formed in the center position, the two sides of the panel 22 are fixedly connected to the insert plate 19, the insert plate 19 is inserted into the square plate 14, the insert plate 19 is rotatably connected internally to a shaft body 17, the side surface of the shaft body 17 is fixedly connected to the rotary plate 18, and the surface of the square plate 14 is provided with a fixed block 13.The rotary plate 18 can be inserted into two fixed blocks 13 when rotating to connect the square plate 14 and the insert plate 19, and thereby connect the device body 1 and the cross plate 6; by adding a cross plate 6 to the side surface of the device body 1, a brush 5 is added to the surface of the cross plate 6, a square plate 14 is installed on the side surface of the cross plate 6, an insert plate 19 is installed on the side surface of the device body 1, a shaft body 17 is added in the insert plate 19, a rotary plate 18 is installed on the side surface of the shaft body 17, a fixed block 13 is added to the surface of the square plate 14.Before feeding, the cross plate 6 is installed on the side surface of the device body 1, the square plate 14 is inserted outside the insertion plate 19, the shaft body 17 is rotated, and the rotating shaft body 17 causes the rotating plate 18 to rotate to rotate the rotating plate 18 into the inside of the fixed block 13, so that the cross plate 6 and the brush 5 can be fixed at this moment, and when there is a tight bond on the surface of the feeding device, it can be directly brushed down by the brush 5, so that it falls into the combustion chamber, thereby making it more convenient for cleaning.

[0026] The second end of the device body 1 is rotatably connected to a collecting frame 2, the upper end of the side plate of the device body 1 of the collecting frame 2 is provided with a connecting plate 4, and the connecting plate 4 can contact with the lower end of the device body 1 to prevent the conveyed material from falling off.Two pairs of the first mounting plates 7 are fixedly connected to the side plate of the collecting frame 2 facing the device body 1; the panels 22 on both sides of the second end of the panel 2 are each provided with a second mounting plate 10; a second mounting plate 10 can be inserted into a pair of the first mounting plates 7, and holes are formed in all of them to form a group of connecting elements; the first mounting plate 7 and the second mounting plate 10 of the same group of connecting elements are inserted with an internally threaded cylinder 8, the internally threaded cylinder 8 passing through three holes, and a threaded rod 11 is embedded in each internally threaded cylinder 8.A collecting frame 2 is added to the side surface of the device body 1, a connecting plate 4 is added to the side of the collecting frame 2, a first mounting plate 7 is attached to the side of the collecting frame 2, a second mounting plate 10 is installed on the side surface of the device body 1, an internally threaded cylinder 8 is inserted into the first mounting plate 7 and the second mounting plate 10, and a threaded rod 11 is embedded in the internally threaded cylinder 8.When using the feeding device, the collecting frame 2 is installed on the side surface of the feeding device, the second mounting plate 10 is inserted between the two first mounting plates 7, the internal thread cylinder 8 is then inserted into the first mounting plate 7 and the second mounting plate 10, and the collecting frame 2 can be fixed by screwing the threaded rod 11 into the inside of the internal thread cylinder 8, and when solid waste rolls off the surface of the feeding device, it can be directly rolled into the inside of the collecting frame 2, which makes it more convenient to use.

[0027] In some embodiments of the present utility model, as in Fig.7, the surface of the fixed block 13 is opened with an insertion slot 21, two insertion slots 21 are arranged on both sides of the same square plate 14 such that one opens downward and the other opens upward, so that the rotary plate 18, when arranged vertically, detaches from the through groove formed in the square plate 14, and the rotary plate 18 can be inserted into the corresponding insertion slot 21 when rotating. In addition, the upper end is sealed due to the downward opening of the insertion slot, which can prevent the rotary plate from rotating outward, and the lower end is sealed due to the upward opening of the insertion slot, which can prevent the rotary plate from further rotating and detaching. A clamping groove 15 is opened in each insertion slot 21, the surface of the rotary plate 18 is fixedly connected to a clamping block 16, and the clamping block 16 is embedded in the clamping groove 15.By installing a mortise 21 on the surface of the fixed block 13, opening a clamping groove 15 in the mortise 21, and fixing a clamping block 16 on the surface of the rotating plate 18, the rotating plate 18 is rotated, the rotating plate 18 is inserted into the interior of the mortise 21, and the clamping block 16 is inserted into the clamping groove 15, and the cross plate 6 can be fixed on the side surface of the device body 1 at this time. The clamping block 16 and the clamping groove 15 cooperate to restrict the rotating plate in the mortise, and the mortise and the rotating plate are further locked to prevent the rotating plate from disengaging from the mortise.

[0028] In some embodiments of the present utility model, the inner end of the internal thread cylinder 8 is fixedly provided with a stopper 9. The inner side end of each internal thread cylinder 8 is provided with a stopper 9, the stopper 9 is larger than the outer diameter of the internal thread cylinder 8, and the outer end of the threaded rod 11 is fixedly connected to the rotating plate 12. By installing the rotating plate 12 at one end of the threaded rod 11, the rotating plate 12 is rotated to screw in the threaded rod 11, the threaded rod 11 is screwed into the internal thread cylinder 8 from the outside of the internal thread cylinder 8, and a group of fasteners is fastened. By installing a stopper 9 on the side surface of the internal thread cylinder 8 and combining the screw rod 11, the internal thread cylinder 8 can be prevented from slipping out from the inside of the first mounting plate 7 and the second mounting plate 10.

[0029] A roller 3 is provided at the bottom of the collecting frame 2 and the roller 3 is distributed symmetrically, whereby the collecting frame 2 can be easily moved by installing the roller 3 at the bottom of the collecting frame 2 and the roller 3.

[0030] The working principle of the charging device for co-incineration of solid waste in a coal-fired power plant: When using this charging device, first, the cross plate 6 is installed on the side surface of the device body 1. The square plate 14 is inserted outside the insertion plate 19. The shaft body 17 is rotated. The rotation of the shaft body 17 causes the rotating plate 18 to rotate. The rotating plate 18 is inserted into the insertion slot 21, and the clamping bracket 16 is inserted into the clamping groove 15. At this time, the cross plate 6 can be fixed on the side surface of the device body 1, and the cross plate 6 and the brush 5 can be fixed at this time. If there is a tight bond on the surface of the charging device, the brush 5 can directly brush the dirt down into the combustion chamber, making cleaning more convenient.The collecting frame 2 is installed on the side surface of the feeding device, the second mounting plate 10 is inserted between the two first mounting plates 7, the internal thread cylinder 8 is then inserted into the first mounting plate 7 and the second mounting plate 10, and the collecting frame 2 can be fixed with the rotation of the rotating plate 12 by screwing the threaded rod 11 into the inside of the internal thread cylinder 8. When solid waste rolls off the surface of the feeding device, it can be directly rolled into the interior of the collecting frame 2, which makes it more convenient to use. The feeding device can be started at this moment, and the solid waste can be directly placed on the surface of the feeding device.

[0031] The device of the present utility model effectively solves the problem of solid waste accumulation caused by adhesion during the feeding process by adding a cross plate and a brush to the side surface of the device body. The presence of brushes allows solid waste residues to be easily brushed off and dropped directly into the combustion chamber, which not only reduces the frequency of manual cleaning but also avoids equipment downtime due to cleaning, thus improving the overall operating efficiency of coal-fired power plants. The coordinated design of the shaft body, the rotating plate, and the fixed block enables quick installation and removal of the cross plate and the brush device.This design not only simplifies the installation process and reduces maintenance costs, but also enables easier and faster operation when brushes need to be replaced or cleaned, increasing the maintainability and flexibility of the equipment. The additional collection frame and associated mounting structure (e.g., connecting plate, first mounting plate, second mounting plate, internally threaded cylinder, and threaded rod) form an efficient and convenient solid waste collection system. The system can effectively collect solid waste that rolls off the surface of the device, thus avoiding material waste and environmental pollution.

[0032] When describing the present utility model, it is necessary to understand that an azimuth or positional relationship referring to terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like, has the azimuth or positional relationship based on the drawing. They are intended to facilitate and simplify the description of the present utility model, rather than indicating or implying that the said device or component must have a particular orientation, be constructed, and operate in a particular orientation. Therefore, they should not be construed as a limitation of the present utility model.Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "multiple" means two or more than two, unless otherwise specified. In the description of the present utility model, it means that when a first feature is "above" or "below" the second feature, the first feature and the second feature may be in direct contact, or the first feature and the second feature may not be in direct contact but may be in contact via another feature between them.

[0033] In the description of the present utility model, when the first feature is "on", "over" and "above" with respect to the second feature, it means that the first feature is directly above or diagonally above the second feature, or simply that the horizontal height of the first feature is greater than the horizontal height of the second feature.

[0034] In the description of the present utility model, it should be noted that the terms "assembly," "connection," and "connection" are to be understood in a broad sense unless expressly stated or limited otherwise. For example, it may be a fixed connection, a detachable connection, or a one-piece connection; it may be a mechanical connection or an electrical connection; it may be a direct connection, an indirect connection via an intermediate medium, or a connection within the two elements. For general technical personnel in the field, the specific meaning of the above terms in the present utility model can be understood depending on the specific circumstances.In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," or the like, means that certain features, structures, materials, or properties associated with the embodiment or example are included in at least one embodiment or example of the present utility model. In the present description, exemplary representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or properties may be combined in any suitable manner in one or more embodiments or examples.

[0035] Although the embodiments of the present utility model have been shown and described, it can be understood by a general technical person in the art that various variations, modifications, substitutions and variants can be made to these embodiments without departing from the principle and purpose of the present utility model, and the scope of the present utility model is limited by the claims and their equivalents.

[0036] The foregoing is only a preferred embodiment of the present utility model and is not intended to limit the present utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model falls within the scope of protection of the present utility model.

Claims

[1] Feeding device for the combined co-combustion of solid waste in a coal-fired power plant, characterized by that it comprises a device body (1) and a support frame (20), wherein the support frame (20) is arranged at the lower end of the device body (1) and a belt is rotatably mounted on the device body (1); wherein the first end of the device body (1) is provided with a transverse plate (6) and the inner surface of the transverse plate (6) is provided with a brush (5); wherein two square plates (14) are provided on both sides of the cross plate (6), and an insert plate (19) is fixedly provided on both sides of the first end of the device body (1); wherein the insert plate (19) projects through the square plate (14) of the same side, and the insert plate (19) is rotatably connected internally to a shaft body (17), wherein the side of the shaft body (17) is fixedly connected to the rotary plate (18), and two fixed blocks (13) are provided on both sides of the square plate (14). [2] Feeding device for the coupled co-combustion of solid waste in a coal-fired power plant according to claim 1, characterized bythat an insertion slot (21) is formed in the fixed block (13) and a clamping groove (15) is provided within the insertion slot (21); that two ends of the rotary plate (18) are provided with clamping blocks (16), wherein the rotary plate (18) is capable of being inserted into the insertion slot (21) and the clamping blocks (16) are capable of being embedded in the clamping groove (15). [3] Feeding device for the coupled co-combustion of solid waste in a coal-fired power plant according to claim 2, characterized by that two insertion slots (21) are arranged on both sides of a square plate (14) such that one is open downwards and the other upwards. [4] Feeding device for the coupled co-combustion of solid waste in a coal-fired power plant according to claim 1, characterized by that a collecting frame (3) is provided at the second end of the device body (1). [5] Feeding device for the coupled co-combustion of solid waste in a coal-fired power plant according to claim 4, characterized by that the upper end of one side of the collecting frame (3) and the device body (1) is provided with a connecting plate (4). [6] Feeding device for the coupled co-combustion of solid waste in a coal-fired power plant according to claim 4, characterized by that two pairs of first mounting plates (7) are provided at the end of the collecting frame (3) facing the second end of the device body (1), and each pair of first mounting plates (7) comprises two first mounting plates (7) arranged opposite one another; that the second end of the device body (1) is provided with a second mounting plate (10), the second mounting plate (10) being inserted into the first mounting plate (7), and the first mounting plate (7) and the second mounting plate (10) being rotatably connected to one another. [7] Feeding device for the coupled co-combustion of solid waste in a coal-fired power plant according to claim 6, characterized by that holes are formed in the first mounting plate (7) and the second mounting plate (10), wherein an internally threaded cylinder (8) is inserted into the holes, wherein a threaded rod (11) is inserted into the internally threaded cylinder (8), wherein a rotary disk (12) is fixedly connected to the end of the threaded rod (11). [8] Feeding device for the coupled co-combustion of solid waste in a coal-fired power plant according to claim 7, characterized by that the inner end of the internally threaded cylinder (8) is provided with an aperture (9). [9] Feeding device for the coupled co-combustion of solid waste in a coal-fired power plant according to claim 4, characterized by that a roller (3) is provided at the bottom of the collecting frame (3). [10] Feeding device for the coupled co-combustion of solid waste in a coal-fired power plant according to one of claims 1 to 9, characterized by that the brush (5) is provided with several layers along the direction of the transverse plate (6) from top to bottom.

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