Solid waste feeding system and feeding method

Abstract

The present invention provides a solid waste feeding system and feeding method, which relates to the technical field of solid waste treatment equipment, and solves the technical problem of the single function of the feeding system. The solid waste feeding system includes a support frame, a chain plate conveyor, a flat material device and a metering device. The chain plate conveyor is used to convey solid waste, and its two ends are respectively connected to the material conveying of the crushing equipment and the incineration equipment; the support frame is set on both sides of the chain plate conveyor to form a closed structure on both sides of the chain plate conveyor; the flat material device is movably arranged on the top of the support frame to adjust the height of the solid waste on the chain plate conveyor during the movement; the metering device is arranged on the top of the support frame and is located on the material output side of the flat material device to measure the weight of the solid waste after the height adjustment. The present invention can flatten and raise the solid waste on the chain plate conveyor, and measure the weight of the solid waste after flattening and raising, so as to realize the automatic processing of the feeding system and facilitate the accurate processing of the solid waste.

Description

Technical Field

[0001] The present invention relates to the technical field of solid waste treatment equipment, and in particular to a solid waste feeding system and a feeding method. Background Art

[0002] Solid waste treatment technologies mainly include: waste incineration, high temperature composting, sanitary landfill, and solid waste pyrolysis. Among them, waste incineration can reduce the volume of waste by burning organic matter in the waste, so it is widely used. Solid waste incineration treatment process: including pretreatment and feeding system---rotary kiln + secondary combustion chamber combustion system---waste heat recovery system---exhaust gas purification system---flue gas emission.

[0003] The pretreatment process is to crush and refine the solid waste, thereby reducing the volume of solid waste entering the rotary kiln. After the solid waste is crushed and refined, it is sent into the rotary kiln through the feeding system for incineration.

[0004] The applicant has found that the prior art has at least the following technical problems:

[0005] The existing feeding system can only realize the conveying function of crushed solid waste, but has no other functions, which is not conducive to process automation and precise processing. Summary of the invention

[0006] The object of the present invention is to provide a solid waste feeding system and a feeding method to solve the technical problem of single function of the feeding system existing in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides a solid waste feeding system, comprising a support frame, a chain conveyor, a flat material device and a metering device, wherein:

[0009] The chain conveyor is used to convey solid waste, and its two ends are respectively connected to the material conveying of the crushing equipment and the incineration equipment;

[0010] The support frame is erected on both sides of the chain conveyor to form a closed structure on both sides of the chain conveyor;

[0011] The flattening device is movably arranged on the top of the support frame to adjust the height of the solid waste on the chain conveyor during movement;

[0012] The metering device is arranged on the top of the support frame and is located at the material output side of the flat material device to measure the weight of the solid waste after the height is adjusted.

[0013] As a further improvement of the present invention, it also includes a front section protective cover and a rear section protective cover, the front section protective cover is arranged above the flat material device and is fixedly connected to the support frame; the rear section protective cover is arranged above the metering device and is fixedly connected to the support frame.

[0014] As a further improvement of the present invention, the flat material device includes a flat material piece and a driving piece. The flat material piece is rotatably arranged on the support frame. The driving piece is transmission-connected to the flat material piece and can drive the flat material piece to swing back and forth, so as to flatten the material when contacting with the solid waste, thereby realizing waste height adjustment.

[0015] As a further improvement of the present invention, the driving member includes a forward and reverse motor, a reducer, a capstan shaft, a rigid rope loop, a rocker arm and a steel wire rope, one end of the rocker arm is rotatably connected to the support frame via a rotating shaft, and the other end of the rocker arm is connected to one end of the flat material piece; the capstan shaft is rotatably arranged on the support frame, and the forward and reverse motor is transmission-connected to the capstan shaft via the reducer; the rigid rope loop is sleeved on the outside of the capstan shaft, one end of the steel wire rope is wound around the rigid rope loop, and the other end is hinged to the other end of the flat material piece.

[0016] As a further improvement of the present invention, a rope rod is vertically arranged on the rigid rope loop, and one end of the steel wire rope is sleeved on the rope rod and then wound around the rigid rope loop.

[0017] As a further improvement of the present invention, there are two rope rods, which are respectively arranged at both ends of the rigid rope loop, and there are two steel wire ropes, which are respectively connected to both ends of the flat material in the width direction.

[0018] As a further improvement of the present invention, the flat material piece includes a curved flat material plate, and the curvature of the end connected to the rocker arm is greater than the curvature of the end connected to the wire rope; when the flat material piece swings back and forth, the distance between the lowest point of the flat material piece and the chain conveyor is within the distance where the optimal measurement accuracy of the metering device is located.

[0019] As a further improvement of the present invention, the flat material piece also includes at least one flat material tooth arranged on the bottom plate of the flat material plate and close to the feeding side of the chain conveyor, all of the flat material teeth are curved structures protruding outward, and the curvature of all the flat material teeth decreases successively, and the flat material teeth and the flat material plate are an integral structure or a split structure.

[0020] As a further improvement of the present invention, the measuring device includes a laser displacement sensor and a rotary encoding distance measuring sensor.

[0021] A feeding method provided by the present invention is a method for feeding solid waste based on the solid waste feeding system, comprising the following steps:

[0022] Step S1, the pulverizing equipment pulverizes the solid waste and then sends it to the starting end of the chain conveyor through the conveying equipment, and the solid waste automatically falls onto the chain conveyor under the action of gravity;

[0023] Step S2, the chain conveyor is started to drive the solid waste accumulated thereon to move forward;

[0024] Step S3: During the pushing process, the forward and reverse motors are started, and the solid waste first passes through the flat material plate under the front protective cover. Under the action of the flat material plate and the flat material teeth, the solid waste is pushed and pressed to control the material layer thickness, thereby achieving the pushing and height adjustment of the solid waste;

[0025] Step S4, after being leveled and raised, the solid waste with relatively uniform thickness enters the bottom of the metering device along the traveling direction, the conveying length of the solid waste is measured by the laser displacement sensor, the distance between the surface of the solid waste and the rotary encoding distance measuring sensor is measured by the rotary encoding distance measuring sensor, the volume of the material section is calculated by the program, and the weight of the material section is calculated by the volume of the material section and the input material density;

[0026] Step S5: the solid waste is conveyed by the chain conveyor into the rotary kiln for incineration;

[0027] Step S6, controlling the material discharge amount according to the weight calculated in step S4. When the material discharge amount of the chain plate conveyor through the outlet reaches the set amount, the program controls the chain plate conveyor 2 to automatically move the material layer back 300mm to prevent the end of the material layer from collapsing into the rotary kiln, thereby ensuring the material discharge amount;

[0028] Step S7: The control module in the solid waste feeding system simultaneously records the position of the last metering end, and waits for the chain conveyor to run to this position and then continues to measure;

[0029] In step S8 and step S3, the flattening height of the solid waste can be adjusted by the opening and closing angle of the flattening plate. When the unloading weight of the chain conveyor is set, the control module calculates the thickness of the flattened material layer to be matched. At this time, the forward and reverse motors and the reducer start to work, the rope rod and the wire rope sleeve move, the wire rope is tightened or loosened, and the angle of the rotating shaft and the rocker arm increases or decreases accordingly. Along the feeding direction, the flattening plate falls on the material layer at a certain angle, the middle section of the flattening plate is flatly pressed on the material, and the tail is connected to the wire rope sleeve through a wire rope to flatten and compact the extra-high material layer, and the low material layer is supplemented to reach the specified material layer height; the thickness and displacement obtained by the rotary encoding ranging sensor and the laser displacement sensor are combined to calculate and feedback the volume of the material section, and the weight of the material section is obtained to control the unloading amount.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The solid waste feeding system provided by the present invention can not only flatten and raise the solid waste on the chain conveyor, but also weigh the solid waste after flattening and raising, by arranging a flat material device and a metering device, so as to realize the automatic processing of the feeding system and facilitate the accurate processing of the solid waste; the feeding method provided by the present invention has a high automation effect, and by setting the weight of the material section of the chain conveyor, it is associated with accurate material volume measurement, and the material is accurately discharged according to the material weight; a quantitative automatic start-stop and reverse anti-drop program is provided at the discharge outlet to prevent the end section material from collapsing, resulting in an actual larger discharge amount; intermittent metering boundary control is beneficial to the accurate cumulative recording of the discharge amount, and the actual application is of great significance for the metering of shifts and discharge amounts, the equipment needs to input fewer process parameters for control or adjustment, the equipment parameters are automatically associated and controlled, the degree of automation is high, the kiln condition indicators can be matched, and automatic discharge and quantitative discharge are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 is an axonometric diagram of the solid waste feeding system of the present invention;

[0034] Figure 2 is a front view of the solid waste feeding system of the present invention;

[0035] Figure 3 yes Figure 2 A-direction cross-section;

[0036] Figure 4 yes Figure 2 Partial cross-section of middle BB;

[0037] Figure 5 It is a program interface diagram of the control module in the solid waste feeding system of the present invention.

[0038] In the figure, 1, support frame; 2, chain conveyor; 3, flat material device; 31, flat material part; 311, flat material plate; 312, flat material teeth; 32, driving part; 321, forward and reverse motor; 322, reducer; 323, capstan shaft; 324, wire rope; 325, rocker arm; 326, rotating shaft; 327, rope rod; 4, metering device; 5, front section protective cover; 6, rear section protective cover. DETAILED DESCRIPTION

[0039] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0040] like Figure 1 As shown, the present invention provides a solid waste feeding system, including a support frame 1, a chain conveyor 2, a flat material device 3 and a metering device 4, wherein:

[0041] The chain conveyor 2 is used to convey solid waste, and its two ends are respectively connected to the material conveying of the crushing equipment and the incineration equipment;

[0042] The support frame 1 is set up on both sides of the chain conveyor 2 to form a closed structure on both sides of the chain conveyor 2;

[0043] The flattening device 3 is movably arranged on the top of the support frame 1 to adjust the height of the solid waste on the chain conveyor 2 during the movement;

[0044] The metering device 4 is arranged on the top of the support frame 1 and is located at the material output side of the flat material device 3 to measure the weight of the solid waste after the height is adjusted.

[0045] It should be noted that the chain conveyor 2 is implemented using products in the prior art. Of course, the chain conveyor 2 can also be replaced with a conveyor belt or other conveying equipment.

[0046] The support frame 1 is a flat plate structure, which is vertically arranged on both sides of the conveying direction of the chain conveyor 2. The top of the support frame 1 has a bent portion bent outward, and a supporting plane is formed by two bent portions to facilitate the layout of the metering device 4 and other components.

[0047] As an optional embodiment of the present invention, it also includes a front protective cover 5 and a rear protective cover 6. The front protective cover 5 is arranged above the flat material device 3 and is fixedly connected to the support frame 1; the rear protective cover 6 is arranged above the metering device 4 and is fixedly connected to the support frame 1.

[0048] Furthermore, the flattening device 3 includes a flattening piece 31 and a driving piece 32. The flattening piece 31 is rotatably arranged on the support frame 1. The driving piece 32 is transmission-connected to the flattening piece 31 and can drive the flattening piece 31 to swing back and forth, so as to flatten the material when in contact with the solid waste, thereby realizing waste height adjustment.

[0049] like Figure 3As shown, specifically, the driving member 32 includes a forward and reverse motor 321, a reducer 322, a capstan shaft 323, a rigid rope loop, a rocker arm 325 and a steel wire rope 324, one end of the rocker arm 325 is rotatably connected to the support frame 1 through a rotating shaft 326, and the other end of the rocker arm 325 is connected to one end of the flat material 31; the capstan shaft 323 is rotatably set on the support frame 1, and the forward and reverse motor 321 is transmission-connected to the capstan shaft 323 through the reducer 322; the rigid rope loop is set on the outside of the capstan shaft 323, one end of the steel wire rope 324 is wound around the rigid rope loop, and the other end of the steel wire rope 324 is hinged to the other end of the flat material 31.

[0050] like Figure 4 As shown, specifically, there are two swing rods 325, and the rotating shaft 326 spans the support frame 1, and the two ends are connected to the bending part at the top of the support frame 1 through bearings. One end of the two swing rods 325 is respectively connected to the two ends of the rotating shaft 326, and the other ends of the two swing rods 325 are respectively rotatably connected to the two sides of the end of the flat material 31.

[0051] In order to prevent the steel wire rope 324 from slipping and idling on the rigid rope loop, a rope rod 327 is vertically arranged on the rigid rope loop, and one end of the steel wire rope 324 is looped on the rope rod 327 and then wound around the rigid rope loop.

[0052] There are two rope rods 327 , which are respectively arranged at the two ends of the rigid rope loop, and there are two steel wire ropes 324 , which are respectively connected to the two ends of the flat material 31 in the width direction.

[0053] As an optional embodiment of the present invention, the flat material 31 includes a curved flat material plate 311, and the curvature of one end connected to the swing rod 325 is greater than the curvature of one end connected to the wire rope 324; when the flat material 31 swings back and forth, the distance between the lowest point of the flat material 31 and the chain conveyor 2 is within the distance of the optimal measurement accuracy of the metering device 4. It should be noted that the distance of the optimal measurement accuracy refers to the measurement distance when the measurement accuracy of the metering device 4 is at the best.

[0054] like Figure 2 As shown, further, the flat material piece 31 also includes at least one flat material tooth 312 arranged on the bottom plate of the flat material plate 311 and close to the feeding side of the chain conveyor 2. All the flat material teeth 312 are curved structures protruding outward, and the curvature of all the flat material teeth 312 decreases successively. The flat material teeth 312 and the flat material plate 311 are an integral structure or a split structure.

[0055] It should be noted that the flat material teeth 312 may be curved, triangular, elliptical or other shapes, as long as they can be adjusted to flatten the solid waste. Practical use has shown that the larger the curvature of the flat material teeth 312 closer to the material inlet direction, the better the pushing effect.

[0056] Specifically, the measuring device 4 includes a laser displacement sensor and a rotary encoding distance measuring sensor.

[0057] The laser displacement sensor is used to measure the moving distance of the solid waste, and the width of the chain conveyor 2 is known. The rotary encoding ranging sensor is used to measure the distance between the solid waste and the sensor, and the distance between the chain conveyor 2 and the sensor is known. The thickness of the solid waste can be indirectly known, and the weight of the solid waste can be calculated according to the density of the solid waste, thus realizing the metering function.

[0058] like Figure 5 As shown, a feeding method provided by the present invention is a method for feeding solid waste based on a solid waste feeding system, comprising the following steps:

[0059] Step S1, the pulverizing equipment pulverizes the solid waste and then sends it to the starting end of the chain conveyor through the conveying equipment, and the solid waste automatically falls onto the chain conveyor under the action of gravity;

[0060] Step S2, the chain conveyor is started to drive the solid waste accumulated thereon to move forward;

[0061] Step S3: During the pushing process, the forward and reverse motors are started, and the solid waste first passes through the flat material plate under the front protective cover. Under the action of the flat material plate and the flat material teeth, the solid waste is pushed and pressed to control the material layer thickness, thereby achieving the pushing and height adjustment of the solid waste;

[0062] Step S4, after being leveled and raised, the solid waste with relatively uniform thickness enters the bottom of the metering device along the traveling direction, the conveying length of the solid waste is measured by the laser displacement sensor, the distance between the surface of the solid waste and the rotary encoding distance measuring sensor is measured by the rotary encoding distance measuring sensor, the volume of the material section is calculated by the program, and the weight of the material section is calculated by the volume of the material section and the input material density;

[0063] Step S5: the solid waste is conveyed by the chain conveyor into the rotary kiln for incineration;

[0064] Step S6, controlling the material discharge amount according to the weight calculated in step S4. When the material discharge amount of the chain plate conveyor through the outlet reaches the set amount, the program controls the chain plate conveyor 2 to automatically move the material layer back 300mm to prevent the end of the material layer from collapsing into the rotary kiln, thereby ensuring the material discharge amount;

[0065] Step S7: The control module in the solid waste feeding system simultaneously records the position of the last metering end, and waits for the chain conveyor to run to this position and then continues to measure;

[0066] Step S8, the flat material plate is a large steel plate. The flattening height of the solid waste in step S3 can be adjusted by the opening and closing angle of the flat material plate. When the unloading weight of the chain conveyor is set, the control module calculates the thickness of the flattened material layer to be matched. At this time, the forward and reverse motors and the reducer start to work, the rope rod and the wire rope sleeve move, the wire rope is tightened or loosened, and the angle of the rotating shaft and the rocker arm increases or decreases accordingly. Along the feeding direction, the flat material plate falls on the material layer at a certain angle, the middle section of the flat material plate is flattened and pressed on the material, and the tail is connected to the wire rope sleeve through a wire rope to flatten and compact the super-high material layer, and the low material layer is supplemented to reach the specified material layer height; combined with the thickness and displacement obtained by the rotary encoding ranging sensor and the laser displacement sensor, the volume of the material section is calculated and fed back to obtain the weight of the material section to control the unloading amount.

[0067] The solid waste feeding system provided by the present invention can not only flatten and raise the solid waste on the chain conveyor 2, but also weigh the solid waste after flattening and raising, by arranging the flat material device 3 and the metering device 4, so as to realize the automatic processing of the feeding system and facilitate the accurate processing of the solid waste; the feeding method provided by the present invention has a high automation effect, and by setting the weight of the material section of the chain conveyor, it is associated with the accurate material volume measurement, and the material is accurately discharged according to the material weight; a quantitative automatic start and stop and a reverse anti-drop program are provided at the discharge outlet to prevent the end section material from collapsing, resulting in an actual larger discharge amount; intermittent metering boundary control is beneficial to the accurate cumulative recording of the discharge amount, and the actual application is of great significance for the metering of shifts and discharge amounts, the equipment needs to input fewer process parameters for control or adjustment, the equipment parameters are automatically associated and controlled, the degree of automation is high, the kiln condition indicators can be matched, and automatic discharge and quantitative discharge are realized.

[0068] First of all, it should be explained here that “inward” refers to the direction toward the center of the accommodating space, and “outward” refers to the direction away from the center of the accommodating space.

[0069] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0070] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0071] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0074] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A solid waste feeding system, characterized in that: It includes a support frame, a chain conveyor, a flat material device and a metering device, wherein: The chain conveyor is used to convey solid waste, and its two ends are respectively connected to the material conveying of the crushing equipment and the incineration equipment; The support frame is erected on both sides of the chain conveyor to form a closed structure on both sides of the chain conveyor; The flattening device is movably arranged on the top of the support frame to adjust the height of the solid waste on the chain conveyor during movement; The metering device is arranged on the top of the support frame and is located at the material output side of the flat material device to measure the weight of the solid waste after the height is adjusted; The flattening device comprises a flattening member and a driving member, wherein the flattening member is rotatably arranged on the support frame, and the driving member is in transmission connection with the flattening member, and can drive the flattening member to swing back and forth, so as to flatten the material when in contact with the solid waste, thereby realizing waste height adjustment; The driving member includes a forward and reverse motor, a speed reducer, a capstan shaft, a rigid rope loop, a swing arm and a steel wire rope, one end of the swing arm is rotatably connected to the support frame through a rotating shaft, and the other end of the swing arm is connected to one end of the flat material; the capstan shaft is rotatably arranged on the support frame, and the forward and reverse motor is transmission-connected to the capstan shaft through the speed reducer; the rigid rope loop is sleeved on the outside of the capstan shaft, one end of the steel wire rope is wound around the rigid rope loop, and the other end is hinged to the other end of the flat material; The measuring device includes a laser displacement sensor and a rotary encoding distance measuring sensor.

2. The solid waste feeding system according to claim 1, characterized in that: It also includes a front section protective cover and a rear section protective cover. The front section protective cover is arranged above the flat material device and is fixedly connected to the support frame; the rear section protective cover is arranged above the metering device and is fixedly connected to the support frame.

3. The solid waste feeding system according to claim 1, characterized in that: A rope rod is vertically arranged on the rigid rope loop, and one end of the steel wire rope is sleeved on the rope rod and then wound around the rigid rope loop.

4. The solid waste feeding system according to claim 3, characterized in that: There are two rope rods, which are respectively arranged at the two ends of the rigid rope loop, and there are two steel wire ropes, which are respectively connected to the two ends of the flat material in the width direction.

5. The solid waste feeding system according to claim 1, characterized in that: The flat material piece includes a curved flat material plate, and the curvature of one end connected to the rocker arm is greater than the curvature of the other end connected to the wire rope; when the flat material piece swings back and forth, the distance between the lowest point of the flat material piece and the chain conveyor is within the distance where the optimal measurement accuracy of the metering device is located.

6. The solid waste feeding system according to claim 5, characterized in that: The flat material piece also includes at least one flat material tooth arranged on the bottom plate of the flat material plate and close to the feeding side of the chain conveyor. All of the flat material teeth are curved structures protruding outward, and the curvature of all of the flat material teeth decreases successively. The flat material teeth and the flat material plate are an integral structure or a split structure.

7. A feeding method, characterized in that: A method for feeding solid waste based on the solid waste feeding system according to any one of claims 1 to 6 comprises the following steps: Step S1, the pulverizing equipment pulverizes the solid waste and then sends it to the starting end of the chain conveyor through the conveying equipment, and the solid waste automatically falls onto the chain conveyor under the action of gravity; Step S2, the chain conveyor is started to drive the solid waste accumulated thereon to move forward; Step S3: During the pushing process, the forward and reverse motors are started, and the solid waste first passes through the flat material plate under the front protective cover. Under the action of the flat material plate and the flat material teeth, the solid waste is pushed and pressed to control the material layer thickness, thereby achieving the pushing and height adjustment of the solid waste; Step S4, after being leveled and raised, the solid waste with relatively uniform thickness enters the bottom of the metering device along the traveling direction, the conveying length of the solid waste is measured by the laser displacement sensor, the distance between the surface of the solid waste and the rotary encoding distance measuring sensor is measured by the rotary encoding distance measuring sensor, the volume of the material section is calculated by the program, and the weight of the material section is calculated by the volume of the material section and the input material density; Step S5: the solid waste is conveyed by the chain conveyor into the rotary kiln for incineration; Step S6, controlling the material discharge amount according to the weight calculated in step S4. When the material discharge amount of the chain plate conveyor through the outlet reaches the set amount, the program controls the chain plate conveyor to automatically move the material layer back 300mm to prevent the end of the material layer from collapsing into the rotary kiln, thereby ensuring the material discharge amount. Step S7: The control module in the solid waste feeding system simultaneously records the position of the last metering end, and waits for the chain conveyor to run to this position and then continues to measure; In step S8 and step S3, the flattening height of the solid waste can be adjusted by the opening and closing angle of the flattening plate. When the unloading weight of the chain conveyor is set, the control module calculates the thickness of the flattened material layer to be matched. At this time, the forward and reverse motors and the reducer start to work, the rope rod and the wire rope sleeve move, the wire rope is tightened or loosened, and the angle of the rotating shaft and the rocker arm increases or decreases accordingly. Along the feeding direction, the flattening plate falls on the material layer at a certain angle, the middle section of the flattening plate is flatly pressed on the material, and the tail is connected to the wire rope sleeve through a wire rope to flatten and compact the extra-high material layer, and the low material layer is supplemented to reach the specified material layer height; the thickness and displacement obtained by the rotary encoding ranging sensor and the laser displacement sensor are combined to calculate and feedback the volume of the material section, and the weight of the material section is obtained to control the unloading amount.

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