Solid waste co-combustion device for coal-fired boiler

Abstract

The present application relates to solid waste treatment technical field and disclose a kind of solid waste collaborative blending device for coal power boiler, including box, material distribution subassembly, crushing subassembly and screening subassembly, the top of box is equipped with inlet, bottom is equipped with discharge port, material distribution subassembly is located in inlet, for the batch feeding of material entering by inlet into box, crushing subassembly is arranged in box and below inlet, for the crushing treatment of material sent into box, screening subassembly is arranged in the inside of box, and below crushing subassembly, screening subassembly includes first screen box and second screen box, which are sequentially arranged, the upside of first screen box and second screen box is open structure, bottom has screen, the screen mesh of first screen box and second screen box is mutually staggered in horizontal projection.This solid waste collaborative blending device for coal power boiler of the present application embodiment can effectively realize the crushing and screening of solid waste, meet the particle size requirement of blending.

Description

Technical Field

[0001] This invention belongs to the field of solid waste treatment technology, specifically relating to a solid waste co-firing device for coal-fired power boilers. Background Technology

[0002] There are two major problems in the actual operation of solid waste co-firing devices: First, the feeding stage mostly adopts direct feeding. When too much solid waste is fed at once, straw and waste paper materials are very easy to entangle and form clumps, which not only greatly reduces the crushing effect, but also easily jams the crushing mechanism, causing equipment failure and shutdown. Second, in the screening stage, power plants have strict particle size requirements for the solid waste entering the furnace. Conventional single-layer screens cannot effectively intercept long strips of material that pass through the screen vertically, resulting in the failure of the qualified particle size of the output. At the same time, the screen is easily blocked by material, the screening efficiency continues to decline, and cleaning and maintenance are frequent, which restricts the continuous and stable operation of the device. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a solid waste co-firing device for coal-fired power boilers. This device can effectively achieve stable feeding, crushing, and screening of solid waste, meeting the particle size requirements for co-firing.

[0004] The solid waste co-firing device for coal-fired power boilers according to an embodiment of the present invention includes a housing, a material distribution component, a crushing component, and a screening component. The housing has an inlet at the top and an outlet at the bottom. The material distribution component is located inside the inlet and is used to feed the material entering through the inlet into the housing in batches. The crushing component is located inside the housing and below the inlet, and is used to crush the material fed into the housing. The screening component is located inside the housing and below the crushing component. The screening component includes a first screen box and a second screen box arranged vertically. The upper side of the first screen box and the second screen box are open, and the bottom has a screen. The screen meshes of the first screen box and the second screen box are offset from each other in horizontal projection.

[0005] The solid waste co-firing device for coal-fired power boilers in this invention uses a material distribution component inside the feed inlet to feed solid waste materials in batches and in quantities, avoiding material entanglement and clumping, and malfunctions of the crushing component caused by excessive feeding at one time. It also ensures that the material enters the crushing zone evenly, improving the stability and uniformity of the crushing process. A double-layer staggered screening structure is formed by a first screen box and a second screen box arranged vertically with their mesh openings horizontally offset. This effectively intercepts long, strip-shaped solid waste materials that vertically pass through the upper screen, solving the problem that conventional single-layer screens cannot intercept vertically elongated materials. This significantly improves the particle size qualification rate of the screened material, stably meeting the feed particle size requirements for solid waste co-firing in coal-fired power boilers, ensuring stable boiler combustion conditions, and helping coal-fired power plants achieve solid waste resource utilization and carbon emission control.

[0006] In some embodiments, the screening assembly further includes a first frame, a second frame, at least one connecting plate, and a vibration drive component. The first frame and the second frame are arranged vertically in sequence. The first screen box is connected to the first frame, and the second screen box is connected to the second frame. The connecting plate is disposed on the support of the first frame and the second frame and connects the two. The vibration drive component is disposed on one of the connecting plates and is used to cause the screening assembly to vibrate.

[0007] In some embodiments, the screening assembly further includes elastic ropes and counterweights, at least one elastic rope has its two ends connected to opposite sides of the first frame, at least one elastic rope has its two ends connected to opposite sides of the second frame, and the counterweights are disposed on the elastic ropes for striking the first screen box and the second screen box.

[0008] In some embodiments, the first screen box is located above the first frame, and the bottom of the first screen box is detachably connected to the first frame; the second screen box is located above the second frame, and the bottom of the second screen box is detachably connected to the second frame.

[0009] In some embodiments, the screening assembly further includes at least one shock absorber disposed between the second frame and the housing to mitigate vibrations transmitted from the screening assembly to the housing.

[0010] In some embodiments, the shock absorber includes a housing, a spindle, and an elastic element. The housing is connected to the box body, the spindle is movably inserted into the housing and can move along its axial direction, and the elastic element is disposed between the spindle and the housing for resetting the spindle after it has moved.

[0011] In some embodiments, the material dispensing assembly includes a rotating shaft, a rotating drive, and a baffle. The rotating shaft is horizontally disposed within the inlet. The rotating drive is connected to the rotating shaft to drive the rotating shaft to rotate. The baffle extends radially along the rotating shaft and can block the inlet when rotated to a horizontal position.

[0012] In some embodiments, there are multiple baffles, wherein two of the baffles arranged symmetrically with respect to the axis of rotation can block the feed inlet when rotated to a horizontal position.

[0013] In some embodiments, the crushing assembly includes a plurality of crushing rollers and a crushing drive motor, wherein the plurality of crushing rollers mesh with each other, and the crushing drive motor is connected to at least one of the crushing rollers for driving the plurality of crushing rollers to rotate synchronously.

[0014] In some embodiments, the front side of the enclosure is provided with an openable access door.

[0015] The solid waste co-firing device for coal-fired power boilers in this embodiment of the invention uses a vibration drive component in conjunction with a screening assembly to simultaneously accelerate the material screening speed, clear materials stuck in the screen, solve the problem of screen blockage, and maintain long-term stable screening efficiency. In addition, the shock absorber structure greatly reduces the transmission of screening vibration to the housing, reducing the operating noise and structural wear of the device. The detachable screen box and the maintenance door on the front of the housing greatly simplify the operation process of unqualified material recycling, replacement of vulnerable parts, and daily maintenance. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the solid waste co-firing device for coal-fired power boilers according to an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the material dispensing component of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the screening component of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the crushing component of the present invention.

[0020] Figure 5 This is a schematic diagram of the structure of the shock absorber of the present invention.

[0021] Figure label:

[0022] 1. Enclosure; 101. Inspection door; 2. Feed inlet; 201. Baffle; 202. Rotary drive component; 3. Screening assembly; 301. First frame; 302. First screen box; 303. Second screen box; 304. Outer shell; 305. Elastic element; 306. Mandrel; 307. Vibration drive element; 308. Elastic rope; 309. Counterweight; 4. Crushing assembly; 401. Crushing drive motor; 402. Crushing roller. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] like Figures 1-5 As shown, the solid waste co-firing device for coal-fired power boilers according to an embodiment of the present invention includes a box body 1, a material distribution component, a crushing component 4, and a screening component 3. The top of the box body 1 is provided with an inlet 2 and the bottom is provided with an outlet. The material distribution component is located inside the inlet 2 and is used to feed the material entering through the inlet 2 into the box body 1 in batches. The crushing component 4 is located inside the box body 1 and below the inlet 2 and is used to crush the material fed into the box body 1. The screening component 3 is located inside the box body 1 and below the crushing component 4. The screening component 3 includes a first screen box 302 and a second screen box 303 arranged vertically. The upper side of the first screen box 302 and the second screen box 303 are open structures, and the bottom has a screen. The screen meshes of the first screen box 302 and the second screen box 303 are offset from each other in the horizontal projection.

[0025] The solid waste co-firing device for coal-fired power boilers in this embodiment can realize the batch and quantitative feeding of solid waste materials, avoiding the problems of material entanglement and clumping, jamming of crushing component 4, or substandard crushing effect caused by excessive feeding at one time. At the same time, through the double-layer staggered screen structure, it effectively intercepts long strip solid waste materials that pass vertically through the upper screen, improves the qualified particle size of the material after screening, and meets the feeding requirements of solid waste co-firing for coal-fired power boilers.

[0026] See appendix Figure 1The top of the box 1 has an inlet 2, and the bottom of the box 1 has an outlet. Inside the inlet 2 is a material distribution component, which is used to feed solid waste (such as straw, cardboard boxes, etc.) entering through the inlet 2 into the box 1 in batches. For example, the material distribution component can use a timed-opening valve or plate to achieve batch-wise material falling. Inside the box 1 and below the inlet 2 is a crushing component 4, which is used to crush the material fed into the box 1. Inside the housing 1 and below the crushing component 4, a screening component 3 is provided. The screening component 3 includes a first screen box 302 and a second screen box 303 arranged vertically. The upper sides of both the first screen box 302 and the second screen box 303 are open. The bottom of both the first screen box 302 and the second screen box 303 are provided with screens. The screen mesh of the first screen box 302 and the screen mesh of the second screen box 303 are misaligned in the horizontal projection.

[0027] After the solid waste material to be processed is fed into the device through the inlet 2, it first comes into contact with the distribution component. Through the regulation of the distribution component, the material is fed into the box 1 in batches and in quantitative quantities to avoid excessive single-feeding, which could cause the material to entangle and form clumps. The batches of material falling into the processing area of ​​the crushing component 4 are then crushed by the crushing component 4 and fall to the screening component 3 under gravity. The crushed material first falls into the first screen box 302. Material with a particle size that meets the requirements for co-firing can pass through the screen at the bottom of the first screen box 302 and continue falling. If long strip-shaped material passes through the screen of the first screen box 302 vertically, it will be effectively intercepted by the screen of the second screen box 303 because the screen openings of the second screen box 303 are misaligned with those of the first screen box 302. Ultimately, only material with a particle size that meets the requirements can pass through both screens in sequence and be discharged from the outlet at the bottom of the box 1, and sent to the coal-fired boiler for co-firing.

[0028] In some embodiments, the screening assembly 3 further includes a first frame 301, a second frame, at least one connecting plate, and a vibration drive 307. The first frame 301 and the second frame are arranged vertically. The first screen box 302 is connected to the first frame 301, and the second screen box 303 is connected to the second frame. The connecting plate is provided on the support of the first frame 301 and the second frame and connects the two. The vibration drive 307 is provided on one of the connecting plates and is used to vibrate the screening assembly 3.

[0029] In some embodiments, the screening assembly 3 further includes an elastic rope 308 and a counterweight 309. At least one elastic rope 308 has its two ends connected to opposite sides of the first frame 301, and at least one elastic rope 308 has its two ends connected to opposite sides of the second frame. The counterweight 309 is disposed on the elastic rope 308 and is used to strike the first screen box 302 and the second screen box 303.

[0030] In some embodiments, the first screen box 302 is located above the first frame 301, and the bottom of the first screen box 302 is detachably connected to the first frame 301; the second screen box 303 is located above the second frame, and the bottom of the second screen box 303 is detachably connected to the second frame.

[0031] This embodiment can achieve overall stable vibration of the screening component 3, improve material screening efficiency, avoid material accumulation on the screen surface, and continuously clean the material stuck in the screen mesh through the impact structure that moves synchronously with the vibration, thus solving the screen clogging problem. The detachable installation structure of the first screen box 302 and the second screen facilitates the recycling and processing of unqualified materials and the maintenance and replacement of the screen, adapting to different blending particle size requirements.

[0032] Specifically, the screening assembly 3 is provided with a first frame 301 and a second frame, which are typically quadrilateral frames. The first frame 301 and the second frame are arranged vertically. A first screen box 302 is connected to the first frame 301, and a second screen box 303 is connected to the second frame. At least one connecting plate is provided between the first frame 301 and the second frame, with both ends of the connecting plate connected to the first frame 301 and the second frame respectively, so that the two frames form a synchronously linked whole. A vibration drive 307 is installed on one of the connecting plates. The vibration force generated by the vibration drive 307 during operation can be transmitted to the first frame 301 and the second frame through the connecting plate, causing the entire screening assembly 3 to vibrate, accelerating the falling speed of material on the screen surface, and reducing material accumulation.

[0033] At least one elastic rope 308 is connected between opposite sides of the first frame 301, and at least one elastic rope 308 is also connected between opposite sides of the second frame. Multiple elastic ropes can typically be used, and each elastic rope 308 is equipped with a counterweight 309. When the vibration drive 307 drives the screening assembly 3 to vibrate, the elastic ropes 308 will oscillate back and forth with the vibration, causing the counterweights 309 to continuously strike the bottom of the first screen box 302 and the second screen box 303, causing the material stuck in the screen mesh to fall off, maintaining the screen's permeability, and ensuring stable screening results.

[0034] The first screen box 302 is located above the first frame 301, and its bottom is detachably connected to the first frame 301. The second screen box 303 is located above the second frame, and its bottom is detachably connected to the second frame. The detachable connection can be achieved through magnetic attraction, snap-fit, or by having a slot on the first frame 301 that engages with the bottom of the first screen box 302, allowing the bottom portion of the first screen box 302 to snap into the slot.

[0035] When the amount of unqualified material intercepted in the screen box reaches a certain level, the screen box can be removed from the corresponding frame, the material inside can be poured out, and then it can be reinstalled. Alternatively, the screen box with the corresponding mesh size can be quickly replaced according to the particle size requirements of the coal-fired power boiler to improve the adaptability of the device.

[0036] In some embodiments, the screening assembly 3 further includes at least one shock absorber disposed between the second frame and the housing 1 to reduce the vibration transmitted from the screening assembly 3 to the housing 1.

[0037] In some embodiments, the shock absorber includes a housing 304, a spindle 306, and an elastic element 305. The housing 304 is connected to the housing 1. The spindle 306 is movably inserted into the housing 304 and can move along its axial direction. The elastic element 305 is disposed between the spindle 306 and the housing 304 and is used to reset the spindle 306 after it has moved.

[0038] This embodiment can effectively absorb the vibration energy generated during the operation of the screening component 3, greatly reduce the transmission of vibration to the housing 1, reduce resonance noise and structural wear during device operation, avoid vibration affecting the operational stability of the material distribution component and the crushing component 4, and at the same time constrain the vibration trajectory of the screening component 3 to ensure stable and controllable screening action.

[0039] At least one shock absorber is provided between the second frame and the housing 1. The shock absorber is used to reduce the vibration transmitted to the housing 1 when the screening assembly 3 is working.

[0040] The shock absorber has a housing 304, which is connected to the housing 1. A spindle 306 is movably inserted into the housing 304, and the spindle 306 can reciprocate within the housing 304 along its own axis. An elastic element 305, usually a spring, is provided between the spindle 306 and the housing 304. The elastic element 305 is used to reset the spindle 306 after it has moved.

[0041] When the vibration drive 307 drives the screening assembly 3 to generate high-frequency vibration, the second frame will reciprocate with the screening action, and the spindle 306 connected to the second frame will reciprocate synchronously along the axis of the outer shell 304. During the movement of the spindle 306, it will squeeze or stretch the elastic element 305. The elastic element 305 absorbs the impact energy generated by the vibration through its own elastic deformation, thereby greatly reducing the vibration transmitted to the outer shell 304 and then to the housing 1, avoiding resonance between the housing 1 and the screening assembly 3, and limiting the lateral displacement of the screening assembly 3, ensuring that the screening action is always carried out stably in the preset direction, and extending the overall service life of the device.

[0042] In some embodiments, the material distribution assembly includes a rotating shaft, a rotating drive 202, and a baffle 201. The rotating shaft is horizontally disposed in the inlet 2. The rotating drive 202 is connected to the rotating shaft to drive the rotating shaft to rotate. The baffle 201 extends radially along the rotating shaft. When the baffle 201 is rotated to a horizontal position, it can block the inlet 2.

[0043] In some embodiments, there are multiple baffles 201, wherein two baffles 201 arranged symmetrically with respect to the rotation axis can block the feed inlet 2 when rotated to the horizontal position.

[0044] This embodiment can realize the continuous quantitative batch feeding of solid waste materials, effectively avoiding the problems of material entanglement and clumping, jamming of crushing component 4 or reduction of crushing effect caused by excessive feeding at one time. The symmetrically arranged baffle 201 structure can ensure the sealing of the feed port 2 and the stability of the feeding process. The feeding rhythm is controllable and adaptable to the feeding needs of different types of solid waste.

[0045] The material distribution assembly is equipped with a rotating shaft, which is horizontally arranged inside the feed inlet 2. The rotating shaft is connected to a rotary drive 202, which drives the rotating shaft to rotate around its own axis. A baffle 201 is provided on the outer wall of the rotating shaft, which extends radially along the rotating shaft. When the baffle 201 rotates with the rotating shaft to a horizontal position, it can block the material passage of the feed inlet 2.

[0046] Alternatively, multiple baffles 201 can be configured, such as the four shown in the attached diagram. Two baffles 201 symmetrically arranged relative to the rotation axis can jointly block the inlet 2 when rotating to a horizontal position with the rotation axis. When the rotation drive 202 drives the rotation axis to rotate intermittently, all baffles 201 rotate with the rotation axis, forming independent material receiving cavities between adjacent baffles 201. During rotation, the cavity first receives the solid waste material fed above the inlet 2. When the rotation axis rotates to below the inlet 2, the material in the cavity is released and sent into the box 1, realizing batch, uniform, and stable feeding of materials. The symmetrically arranged baffles 201 can ensure that a stable blocking and feeding action can be formed in each rotation cycle during the rotation process, avoiding uncontrolled large-scale material falling. At the same time, it can balance the rotational load of the rotation axis, reduce the off-center vibration during operation, and improve the operational stability and service life of the material distribution component.

[0047] In some embodiments, the crushing assembly 4 includes a plurality of crushing rollers 402 and a crushing drive motor 401. The plurality of crushing rollers 402 mesh with each other, and the crushing drive motor 401 is connected to at least one crushing roller 402 to drive the plurality of crushing rollers 402 to rotate synchronously.

[0048] In some embodiments, the front side of the housing 1 is provided with an openable access door 101.

[0049] This embodiment can achieve efficient and uniform crushing of solid waste materials. Through the intermeshing crushing rollers 402 structure, the clumps and entanglements of solid waste materials are effectively broken up, ensuring the uniformity of particle size of the crushed material and providing stable feeding conditions for the subsequent screening process. At the same time, the maintenance door 101 that can be opened on the front side of the box 1 can greatly reduce the difficulty of maintenance, cleaning and replacement of internal components of the device, and improve the convenience of operation and maintenance and the stability of operation of the device.

[0050] The crushing assembly 4 is equipped with multiple crushing rollers 402, which are arranged in a meshing manner and are usually linked by a gear structure. Each crushing roller 402 is equipped with a crushing drive motor 401, which is connected to at least one crushing roller 402 and is used to drive the multiple crushing rollers 402 to rotate synchronously in opposite directions.

[0051] Solid waste materials, fed into the housing 1 in batches by the material distribution component, fall directly into the crushing zone between the interlocking crushing rollers 402. When the crushing drive motor 401 drives the crushing rollers 402 to rotate synchronously, the interlocking rollers, through continuous squeezing and shearing action, thoroughly crush various solid waste materials such as straw and cardboard boxes, breaking up tangled clumps of material and crushing them into uniformly sized particles. The crushed material, under the influence of gravity, falls directly to the screening component 3 below for grading.

[0052] The front of the housing 1 is equipped with an openable maintenance door 101. When material jamming occurs during the operation of the device, when it is necessary to clean the screen blockage, replace the crushing roller 402 and other vulnerable parts, or when routine maintenance of the internal components is required, the maintenance door 101 can be opened directly to operate all structures inside the housing 1, such as the crushing component 4, the screening component 3, and the material distribution component, without having to disassemble the entire housing 1, which greatly simplifies the maintenance process and shortens the downtime for maintenance.

[0053] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A solid waste co-firing device for coal-fired power boilers, characterized in that, include: The box body has an inlet at the top and an outlet at the bottom. The material distribution component is located inside the inlet and is used to feed the material entering through the inlet into the box in batches. A crushing component is disposed inside the box and located below the feed inlet, and is used to crush the material fed into the box. A screening component is disposed inside the housing and located below the crushing component. The screening component includes a first screen box and a second screen box arranged vertically. The upper side of the first screen box and the second screen box is an open structure, and the bottom has a screen. The screen meshes of the first screen box and the second screen box are misaligned in the horizontal projection.

2. The solid waste co-firing device for coal-fired power boilers according to claim 1, characterized in that, The screening component further includes: A first frame and a second frame are arranged vertically, with the first screen box connected to the first frame and the second screen box connected to the second frame. At least one connecting plate is disposed on and connects the first frame and the second frame support; A vibration drive, which is disposed on one of the connecting plates, is used to vibrate the screening assembly.

3. The solid waste co-firing device for coal-fired power boilers according to claim 2, characterized in that, The screening component further includes: Elastic cord, at least one elastic cord having both ends connected to opposite sides of the first frame, and at least one elastic cord having both ends connected to opposite sides of the second frame; A counterweight, which is mounted on the elastic rope, is used to strike the first screen box and the second screen box.

4. The solid waste co-firing device for coal-fired power boilers according to claim 3, characterized in that, The first screen box is located above the first frame, and the bottom of the first screen box is detachably connected to the first frame. The second screen box is located above the second frame, and the bottom of the second screen box is detachably connected to the second frame.

5. The solid waste co-firing device for coal-fired power boilers according to claim 1, characterized in that, The screening component further includes: At least one shock absorber is provided between the second frame and the housing to mitigate vibrations transmitted from the screening assembly to the housing.

6. The solid waste co-firing device for coal-fired power boilers according to claim 5, characterized in that, The shock absorber includes: The outer casing is connected to the housing. A mandrel, which is movably inserted into the housing and can move along its axial direction; An elastic element is disposed between the mandrel and the housing, and is used to reset the mandrel after it has moved.

7. The solid waste co-firing device for coal-fired power boilers according to claim 1, characterized in that, The material dispensing component includes: A rotating shaft is horizontally positioned inside the feed inlet; A rotary drive component, which is connected to a rotary shaft to drive the rotary shaft to rotate; A baffle is provided that extends radially along the rotation axis and can block the feed inlet when rotated to a horizontal position.

8. The solid waste co-firing device for coal-fired power boilers according to claim 7, characterized in that, There are multiple baffles, among which two baffles arranged symmetrically with respect to the rotation axis can block the feed inlet when rotated to a horizontal position.

9. The solid waste co-firing device for coal-fired power boilers according to claim 1, characterized in that, The crushing component includes: Multiple crushing rollers, wherein the multiple crushing rollers mesh with each other; A crushing drive motor is connected to at least one of the crushing rollers and is used to drive the multiple crushing rollers to rotate synchronously.

10. The solid waste co-firing device for coal-fired power boilers according to any one of claims 1-9, characterized in that, The front of the enclosure is equipped with an openable maintenance door.

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