A feeding device for an incinerator used for waste incineration power generation

Abstract

The present invention discloses an incinerator feeding device for garbage incineration power generation, comprising a material discharge box and a transfer cylinder, wherein a conveying component is arranged between the material discharge box and the transfer cylinder, and the conveying component conveys the garbage from the material discharge box to the transfer cylinder; the transfer cylinder can blow air from the bottom to the top inside thereof, and an air duct is arranged on the top of the transfer cylinder, and the garbage materials in the transfer cylinder are blown out from the air duct and then enter the incinerator for incineration treatment; the air duct is provided with a check piece, and the check piece collects excess moisture in the garbage; an eddy current metal tube is arranged at the bottom of the transfer cylinder, and the eddy current metal tube heats the air flow in the transfer cylinder to dehydrate the garbage in the transfer cylinder, and the eddy current metal tube is provided with a plurality of guide tubes, and the guide tubes form a gas vortex in the transfer cylinder; through the heating and blowing treatment, the moisture in the soaked garbage is effectively separated, the moisture entering the incinerator is reduced, and the combustion efficiency of the garbage is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of waste incineration power generation, and in particular relates to an incinerator feeding device for waste incineration power generation. Background Art

[0002] Waste incineration power generation is an important means to achieve the "reduction, resource utilization, and harmlessness" of waste treatment and improve the ecological environment. In recent years, various regions and departments have continuously increased their efforts in the harmless treatment of urban domestic waste, promoted the construction of waste incineration power plants, and improved waste incineration capacity. At present, my country's waste incineration power plants and waste incineration capacity are both growing steadily.

[0003] At present, garbage will be fully classified before incineration, and those that cannot be burned or are not suitable for burning will be separated in advance. However, most garbage will be mixed with a large amount of water. The wet garbage will be filtered and drained before burning. However, during the filtration and drainage, due to the garbage bag wrapping, some moisture will still remain in the filtered garbage. If some moisture is directly added to the incinerator, it will not only affect the full combustion of the garbage, but also reduce the calorific value generated by the garbage and reduce the power generation efficiency of the incinerator.

[0004] Chinese patent application No. 202310182850.7 discloses an incinerator feeding device for waste incineration power generation, which specifically discloses "pulling the garbage bag by a pulling frame and a pulling part at the same time to expand the opening of the garbage bag and transfer the garbage in the garbage bag out, so as to avoid excessive liquid in the garbage bag affecting the temperature in the garbage incinerator, resulting in the inability to completely incinerate the garbage. At the same time, the garbage in the garbage bag that was originally in a squeezed state is transformed into a loose state, which can make the garbage incinerated in the garbage incinerator more evenly and avoid the garbage from being incompletely solidified in the garbage incinerator." The garbage is torn apart by setting a pulling frame, and then the water is automatically drained out by gravity. Although it solves the problem of a large amount of water entering the incinerator to a certain extent, for some soaked garbage, the water content is relatively high, and it is difficult to achieve a good separation effect of the water. Based on the above problems, the problem of dehydration of garbage during the feeding process before incineration still needs to be improved. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a feeding device for an incinerator for waste incineration power generation. During the feeding process, the combustible garbage is first chopped up. During the transportation after chopped up, the air flow rate in the inner tube is increased to help drying. After that, the garbage enters the transfer cylinder and is heated and blown to effectively separate the moisture in the soaked garbage, thereby reducing the moisture entering the incinerator and improving the combustion efficiency of the garbage, thereby solving at least one of the problems of the background technology.

[0006] The present invention provides the following technical solutions:

[0007] A feeding device for an incinerator for waste incineration power generation, comprising a feed box and a transfer cylinder, wherein a conveying component is provided between the feed box and the transfer cylinder, and the conveying component conveys waste from the feed box to the transfer cylinder;

[0008] The transfer cylinder can blow air from the bottom to the top inside, and an air duct is provided on the top of the transfer cylinder. The garbage materials in the transfer cylinder are blown out from the air duct and then enter the incinerator for incineration.

[0009] The air duct is provided with a check piece, which collects excess water in the garbage to prevent it from entering the incinerator and prevents condensed water vapor in the air duct from flowing back into the transfer cylinder;

[0010] A vortex metal tube is provided at the bottom of the transfer cylinder, which heats the airflow in the transfer cylinder and dehydrates the garbage in the transfer cylinder. The vortex metal tube is provided with multiple guide tubes, which form a gas vortex in the transfer cylinder.

[0011] Preferably, a cutter is provided in the discharge box, and the cutter crushes the garbage. The cutter includes two symmetrically arranged rotating rollers, namely a first rotating roller and a second rotating roller. Blades are provided on the outer surfaces of the two rotating rollers. The first rotating roller is connected to a first motor, and a first gear is provided on the first motor. The second rotating roller is provided with a second gear, and the first gear is meshed and connected with the second gear. The first rotating roller and the second rotating roller rotate in opposite directions, and the first rotating roller rotates clockwise, and the second rotating roller rotates counterclockwise.

[0012] The transmission component includes a conveyor belt, which is arranged obliquely. One end of the conveyor belt is located inside the discharge box, and the other end extends into the transfer cylinder.

[0013] Preferably, the conveyor belt is arranged below the cutter, and the conveyor belt is provided with a second motor, which drives the conveyor belt to rotate. An elastic baffle is provided at the end of the conveyor belt located in the discharge box, which prevents the garbage material from sliding off, and the elastic baffle is connected to the inner wall of the discharge box; a water receiving bucket is provided at the bottom of the discharge box.

[0014] Preferably, an outer sealing tube is provided on the outside of the conveyor belt, one end of the outer sealing tube is connected to the discharge box, and the other end is connected to the transfer cylinder, an inner tube is provided on the inside of the outer sealing tube, the conveyor belt is arranged inside the inner tube, a cavity is formed between the inner tube and the outer sealing tube, a magnetic piston plate is provided inside the cavity, a permanent magnet is provided at one end of the cavity close to the transfer cylinder, and the permanent magnet generates a repulsive force on the magnetic piston plate; a fan 1 is provided on the outside of the outer sealing tube, the output pipe of the fan 1 is connected to the cavity, an air vent is opened at one end of the inner tube close to the transfer cylinder, the exhaust rate of the air vent is greater than the intake rate of the fan 1; a closed coil is provided inside the wall of the outer sealing tube.

[0015] Preferably, a high-pressure fan is provided at the bottom of the transfer cylinder, and a vortex metal tube is provided inside the transfer cylinder. A rotating block is provided below the vortex metal tube, which is rotatably connected to the transfer cylinder through the rotating block. The air delivery end of the high-pressure fan is connected to the vortex metal tube, and a plurality of guide tubes are evenly arranged on the outer peripheral side of the vortex metal tube. The plurality of guide tubes are spirally connected to the outer wall of the vortex metal tube; an excitation coil is provided inside the side wall of the transfer cylinder, and the excitation coil is electrically connected to the closed coil.

[0016] Preferably, a cooling element is provided in the downstream direction of the check member, a condensing element is arranged on the outside of the air duct, a coolant is filled inside the condensing element, and the condensing element is provided with a heat sink; the check member is in a spherical structure, an isolation block is provided inside the spherical structure, the isolation block divides the inside of the check member into an upper channel and a lower channel, and both the upper channel and the lower channel are connected to the air duct; a liquid collecting element is connected below the check member, and a collection tank is provided at the bottom below the liquid collecting element.

[0017] Preferably, the liquid collecting part includes a tube body, one end of the tube body is connected to the check piece, and the other end is connected to the collecting tank; a piston block is provided inside the tube body, and a shielding block is provided at the end of the tube body close to the collecting tank, a socket is provided on the shielding block, and a movable rod is connected to the side of the piston block close to the shielding block, the other end of the movable rod is arranged in the socket, and an elastic part is provided on the movable rod; a water guiding chamber is formed above the piston block, and a filter screen is provided at the end of the water guiding chamber close to the check piece.

[0018] Preferably, it also includes a garbage conveying volume monitoring unit, the monitoring unit includes an optical system, the optical system includes a laser and an industrial camera arranged directly above the conveyor belt, the laser irradiates vertically, an industrial camera is arranged on one side of the laser, the industrial camera irradiates obliquely, and the laser and the industrial camera are both connected to the inner wall of the inner tube.

[0019] Preferably, the monitoring unit further comprises an industrial computer, which is electrically connected to the optical system and controls the transmission belt.

[0020] Preferably, the monitoring method of the monitoring unit comprises: in the first step, the optical system collects garbage feed amount data, transmits the collected data to an industrial computer, and the industrial computer analyzes and processes the collected data;

[0021] In the second step, when the garbage feed amount is greater than the set threshold, the industrial computer controls the conveyor belt to slow down, and when the garbage feed amount is less than the set threshold, the industrial computer controls the conveyor belt to speed up.

[0022] In addition, in the first step, the laser irradiates the garbage on the transmission belt. After the image is obtained by the industrial camera, the industrial computer processes the data by setting a reasonable area to obtain the laser stripe image, avoiding processing the entire image, reducing the workload of data calculation, and shortening the image processing time. When determining the area, the possible position of the laser stripe in the acquired garbage transportation image is fully considered to avoid the large deviation in the calculation of the garbage flow due to the loss of some laser stripes in the acquired area. In actual application, the area is determined as a rectangle, which is mainly subject to three position constraints: 1. The horizontal length of the area should be consistent with the effective length of the laser stripe on the conveyor belt; 2. The lowest point in the vertical direction of the area should include the laser stripe at the lowest point of the surface when the conveyor belt is unloaded; 3. The highest point in the vertical direction of the area should include the laser stripe on the garbage surface at the highest point when the belt is fully loaded. After collecting the area, the image is subjected to bilateral filtering and denoising, which can not only effectively retain the laser stripe edge information in the coal flow image, making the laser in the image easier to distinguish, but also blur the image background to eliminate the spot noise formed by the garbage reflection, which provides great convenience for the later laser stripe extraction. Then, the maximum inter-class variance method is used to quickly segment the laser stripes in the acquired laser image.

[0023] Specifically, since the laser stripes in the acquired garbage flow image have a certain width, in order to improve the detection accuracy, the laser stripes with a certain width in the coal flow image are converted into the laser stripe center line that can represent the position of the real center, and a laser stripe extraction method is set to increase the accuracy of garbage flow monitoring and reduce measurement deviation; the method specifically includes the following steps: step 1, segmenting the stripes in the acquired garbage image, and extracting the center skeleton of the laser stripes using the geometric center stripe method according to the shape information of the laser stripes; step 2, assuming that the laser stripe center line skeleton is composed of N pixels in total, taking its initial i-th point (x i ,y i ) and the i+1th point (x i+1 ,y i+1 ) to connect the lines, calculate the normal direction of all the straight lines, and determine the new center point of the laser stripe (x) by calculating the grayscale centroid value of each pixel point in the normal direction according to the grayscale information of the laser stripe. ci ,y ci ), the normal direction m of the straight line connecting the two points is calculated according to the slope k between the two points, and m and k satisfy: m = -1 / k = -(x i+1 -x i ) / (y i+1 -y i); It should be understood that the maximum width of the laser stripe cross section in the collected image is 10 pixels, so only the coordinates of the 10 pixels (including the i+1th point) through which the normal line passes at the i+1th point are counted to prevent the algorithm from slowing down the calculation time due to counting too many redundant pixels. The coordinates of the 10 pixels are marked as (u l ,v 1) ,(u2,v2)...(u 10 ,v 10 ), the corresponding gray value is

[0024] g(u l ,v1),g(u2,v2)...g(u 10 ,v 10 ) ; Calculate the grayscale centroid value of each pixel in the horizontal and vertical directions as the horizontal x value of the new laser stripe center point ci Coordinates and vertical y ci Step 3: Calculate the new center point of the laser stripe (x ci ,y ci ) and the i+1th point (x i+1 ,y i+1 ), if L is less than or equal to 4, the new laser stripe center point is considered valid, and the new laser stripe center point is used to replace and update the second point in the original laser stripe skeleton; if L is greater than 4, the new laser stripe center point is considered invalid, and the second point in the original laser stripe skeleton is retained; Step 4, according to the above steps 2 and 3, traverse all laser stripe center line skeleton points, and calculate the third point, fourth point, and Nth point of the laser stripe center line skeleton respectively, until all laser stripe center points are extracted, and these center points constitute the laser stripe center line. Through Manhattan distance calculation, not only can the validity of the laser stripe center point be judged, but also the phenomenon of transitional offset of the laser stripe center caused by the appearance of noise or when the laser stripes are wide can be avoided. The volatility of the laser stripe center finally extracted is small, which saves calculation time and improves the calculation accuracy.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) The present invention provides a feeding device for an incinerator for waste incineration power generation. During the feeding process, the combustible waste is first chopped up. During the transportation process after chopped up, the air flow rate in the inner tube is increased to help dry the waste. The waste then enters the transfer cylinder and is heated and blown to effectively separate the moisture in the soaked waste, thereby reducing the moisture entering the incinerator and improving the combustion efficiency of the waste.

[0027] (2) The incinerator feeding device for waste incineration power generation of the present invention not only improves the accuracy of waste monitoring and reduces monitoring deviation through the set monitoring unit and monitoring method, but also transmits the information collected by the optical system to the first motor after processing by the industrial computer, so that the speed of the conveyor belt can be controlled in real time through the frequency converter. It prevents the conveyor belt from transporting too much waste and forming accumulation in the transfer cylinder, and the high-pressure fan cannot blow the crushed waste into the air duct to avoid blockage.

[0028] (3) The present invention provides a feeding device for an incinerator for power generation by incinerating garbage, wherein a fan is provided to blow air into a cavity. When the cavity is connected to the interior of an inner tube through an air vent, the air flow rate on the surface of the crushed garbage is increased, thereby accelerating the evaporation rate of wet plastic or paper, and reducing the moisture content of the garbage for a second time. The cavity exhausts air into the inner tube through the air vent, and the exhaust rate of the air vent is greater than the air intake rate of the fan, so that the gas in the cavity can be quickly discharged into the inner tube, increasing the air flow rate in the inner tube. In this way, air is intermittently supplied to the inner tube, thereby avoiding the phenomenon of garbage flying in the inner tube due to continuous air supply.

[0029] (4) The present invention provides a feeding device for an incinerator for power generation by burning garbage. The gas ejected through the guide pipe is heated. At the same time, the spiral guide pipe is arranged on the outside of the vortex metal pipe. The reverse thrust generated by the ejected gas can drive the vortex metal pipe to rotate and form an air vortex in the transfer cylinder. The high-temperature air vortex can blow the crushed garbage falling from the conveyor belt into the transfer cylinder upward, which can not only quickly remove the moisture in the wet garbage, but also quickly evaporate the moisture to form water vapor which is blown out, thereby reducing the water content in the garbage again. The crushed garbage is blown into the air duct by the vortex airflow and then sent into the incinerator by the air duct.

[0030] (5) The present invention provides a feeding device for an incinerator used for waste incineration power generation. When the high-temperature airflow passes through the condensing element, the water vapor in the gas is liquefied. On the one hand, this prevents the humid water vapor from entering the incinerator. On the other hand, the condensed liquid is prevented from flowing back into the transfer cylinder through the internally arranged guide groove to the spherical check member, thereby increasing the water content in the transfer cylinder, increasing the difficulty of waste transfer, and being unfavorable for the separation of water in the waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0032] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0033] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0034] Figure 3 The structure of the non-return member of the present invention is schematically shown in FIG. Figure 2 .

[0035] Figure 4 It is a schematic diagram of the local structure of A of the present invention.

[0036] Figure 5 It is a schematic diagram of the overall structure of the eddy current metal tube of the present invention.

[0037] Figure 6 It is a schematic diagram of the internal structure of the eddy current metal tube of the present invention.

[0038] Figure 7 It is a schematic diagram of the monitoring unit principle of the present invention.

[0039] Figure 8 It is a schematic diagram of calculating the cross-sectional area of ​​garbage transported by the conveyor belt of the present invention.

[0040] Fig. 9 It is a flowchart of the monitoring unit of the present invention.

[0041] Fig.10 It is a flow chart of laser stripe extraction of garbage images of the present invention. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] Embodiment 1:

[0046] refer to Figure 1-2 A feeding device for an incinerator for waste incineration power generation comprises a feed box 1 and a transfer cylinder 13. A conveying component is provided between the feed box 1 and the transfer cylinder 13. The conveying component conveys the waste from the feed box 1 to the transfer cylinder 13; the transfer cylinder 13 can blow air from the bottom to the top inside it. A wind duct 14 is provided on the top of the transfer cylinder 13. The waste material in the transfer cylinder 13 is blown out from the wind duct 14 and then enters the incinerator for incineration treatment; the wind duct 14 is provided with a check piece 15. The check piece 15 collects excess moisture in the waste to prevent it from entering the incinerator and prevents condensed water vapor in the wind duct 14 from flowing back into the transfer cylinder 13; a vortex metal tube 132 is provided at the bottom of the transfer cylinder 13. The vortex metal tube 132 heats the air flow in the transfer cylinder 13 to dehydrate the waste in the transfer cylinder 13. The vortex metal tube 132 is provided with a plurality of guide tubes 1321. The guide tubes 1321 form a gas vortex in the transfer cylinder 13.

[0047] A cutter 2 is provided in the feed box 1, and the cutter 2 crushes the garbage. The cutter 2 includes two symmetrically arranged rotating rollers, namely the first rotating roller and the second rotating roller. The outer surfaces of the two rotating rollers are provided with blades. The first rotating roller is connected to the first motor 201, and the first motor 201 is provided with a first gear. The second rotating roller is provided with a second gear. The first gear is meshed with the second gear. The first rotating roller and the second rotating roller rotate in opposite directions. The first rotating roller rotates clockwise and the second rotating roller rotates counterclockwise. The transmission component includes a conveyor belt 4, which is tilted. One end of the conveyor belt 4 is located inside the feed box 1, and the other end extends into the transfer cylinder 13. The conveyor belt 4 is arranged below the cutter 2, and the conveyor belt 4 is provided with a second motor 5. The second motor 5 drives the conveyor belt to rotate. The end of the conveyor belt located in the feed box 1 is provided with an elastic baffle 21, which prevents the garbage material from sliding off. The elastic baffle 21 is connected to the inner wall of the feed box 1. A water receiving bucket 3 is provided at the bottom of the feed box 1.

[0048] An outer sealing tube 6 is provided on the outside of the conveyor belt 4, one end of the outer sealing tube 6 is connected to the unloading box 1, and the other end is connected to the transfer cylinder 13. An inner tube 7 is provided on the inside of the outer sealing tube 6, and the conveyor belt 4 is arranged inside the inner tube 7. A cavity 8 is formed between the inner tube 7 and the outer sealing tube 6. A magnetic piston plate 9 is provided inside the cavity 8. A permanent magnet 10 is provided at one end of the cavity 8 close to the transfer cylinder 13, and the permanent magnet 10 generates a repulsive force on the magnetic piston plate 9; a fan 11 is provided on the outside of the outer sealing tube 6, and the output pipe of the fan 11 is connected to the cavity 8. An air vent 71 is opened at one end of the inner tube 7 close to the transfer cylinder 13, and the exhaust rate of the air vent 71 is greater than the intake rate of the fan 11; a closed coil 12 is provided inside the wall of the outer sealing tube 6. A high-pressure fan 131 is provided at the bottom of the transfer cylinder 13, and an eddy current metal tube 132 is provided inside the transfer cylinder 13. A rotating block 133 is provided below the eddy current metal tube 132, which is rotatably connected to the transfer cylinder 13 through the rotating block 133. The air delivery end of the high-pressure fan 131 is connected to the eddy current metal tube 132, and a plurality of guide tubes 1321 are evenly arranged on the outer peripheral side of the eddy current metal tube 132. The plurality of guide tubes 1321 are spirally connected to the outer wall of the eddy current metal tube 132; an excitation coil 134 is provided inside the side wall of the transfer cylinder 13, and the excitation coil 134 is electrically connected to the closing coil 12.

[0049] Specifically, after the garbage is classified, for materials such as paper or plastic that can be burned, after they are added to the discharge box 1, the first motor 201 is started to drive the cutter 2 to cut the paper garbage and plastic garbage into pieces. During the cutting process, the wrapped garbage bags are disassembled, and the retained water inside them can fully flow out and be collected through the water receiving bucket 3 at the bottom. It should be understood that since the conveyor belt 4 is inclined and one end of the discharge box 1 is located lower than one end of the transfer tube 13, a water guide groove is correspondingly provided on the conveyor belt 4 to prevent the accumulated water from being transported to the transfer tube 13 along the conveyor belt 4; the conveyor belt 4 is provided with an elastic baffle 21 at one end of the discharge box 1, and the elastic baffle 21 can prevent the garbage from falling downward from the conveyor belt 4; during the transportation of the crushed garbage by the conveyor belt 4, the crushed garbage enters the inner tube 7, The fan 11 is set to blow air into the cavity 8. When the cavity 8 is connected to the inside of the inner tube 7 through the vent hole 71, the speed of air flow on the surface of the crushed garbage is increased, the evaporation rate of the soaked plastic or paper is accelerated, and the water content of the garbage is reduced for the second time. At the same time, in the above process, when the fan 11 blows air into the cavity 8, the pressure in the cavity 8 gradually increases, pushing the magnetic piston plate 9 to move closer to the permanent magnet 10. When the moving distance of the magnetic piston plate 9 exceeds the vent hole 71, the cavity 8 is exhausted to the inner tube 7 through the vent hole 71, and the exhaust rate of the vent hole 71 is greater than the intake rate of the fan 11, which can quickly discharge the gas in the cavity 8 into the inner tube 7, increase the air flow rate in the inner tube 7, and intermittently supply air to the inner tube 7 in this way to avoid the phenomenon of garbage flying in the inner tube 7 caused by continuous air supply.It should be understood that as the magnetic piston plate 9 gets closer to the permanent magnet 10, the repulsive force between the two becomes stronger. After the gas in the cavity 8 is released through the vent 71, the pressure decreases. The repulsive force between the magnetic piston plate 9 and the permanent magnet 10 is greater than the gas pressure in the cavity 8. The magnetic piston plate 9 moves in the opposite direction and restores its position. After the vent 71 is blocked, the pressure in the cavity 8 increases again, and the magnetic piston plate 9 is pushed for the second time. Through the above process, the magnetic piston plate 9 can reciprocate in the cavity 8. During the reciprocating motion, the magnetic flux in the closed coil 12 changes. According to the law of electromagnetic induction, an induced current is generated in the closed coil 12. The closed coil 12 is connected to the excitation coil 134 in the transfer cylinder 13 through a wire. When the induced current is passed into the excitation coil 134, an eddy current magnetic field is generated. The generated eddy current magnetic field is in the eddy current metal tube 132 exists in the form of eddy current, generating an eddy current magnetic field to heat the eddy current metal tube 132. After the eddy current metal tube 132 is heated, the high-pressure fan 131 is connected to the eddy current metal tube 132 to supply air to it, so the gas ejected through the guide tube 1321 is heated. At the same time, the spiral guide tube 1321 is arranged on the outside of the eddy current metal tube 132, and the reverse thrust generated by the ejected gas can drive the eddy current metal tube 132 to rotate, and form an air vortex in the transfer cylinder 13. The high-temperature air vortex can blow the crushed garbage falling from the conveyor belt 4 into the transfer cylinder 13 upward, which can not only quickly remove the moisture in the wet garbage, but also quickly evaporate the moisture to form water vapor and be blown out, thereby reducing the water content in the garbage again. The crushed garbage is blown into the air duct 14 by the vortex airflow and sent to the incinerator by the air duct 14. ;

[0050] Embodiment 2:

[0051] refer to Figure 3-6 On the basis of the first embodiment, a cooling member is provided in the downstream direction of the check member 15, a condensing member 16 is arranged on the outer side of the air duct 14, a coolant is filled inside the condensing member 16, and a heat sink is provided in the condensing member 16; the check member 15 is a spherical structure, an isolation block is provided inside the spherical structure, and the isolation block divides the inside of the check member 15 into an upper channel 151 and a lower channel 152, and the upper channel 151 and the lower channel 152 are both connected to the air duct 14; a liquid collecting member 17 is connected below the check member 15, and a collecting tank 18 is provided at the bottom below the liquid collecting member 17.

[0052] The liquid collecting member 17 includes a tube body 171, one end of which is connected to the check member 15, and the other end is connected to the collecting tank 18; a piston block 172 is provided inside the tube body 171, and a blocking block 176 is provided at the end of the tube body 171 close to the collecting tank 18, and a plug hole 179 is provided on the blocking block 176; a movable rod 173 is connected to the side of the piston block 172 close to the blocking block 176, and the other end of the movable rod 173 is arranged in the plug hole 179, and an elastic member 175 is provided on the movable rod 173; a water guiding chamber 177 is formed above the piston block 172, and a filter screen 178 is provided at the end of the water guiding chamber 177 close to the check member 15.

[0053] Specifically, after the garbage is blown from the transfer cylinder 13 to the air duct 14, the crushed garbage is blown out from the upper channel 151 and the lower channel 152 along with the air flow. When the high-temperature air flow passes through the condensation member 16, the water vapor in the gas is liquefied. On the one hand, it prevents the moist water vapor from entering the incinerator. On the other hand, it flows to the spherical check member 15 through the internal setting (not shown in the guide groove figure), preventing the condensed liquid from flowing back into the transfer cylinder 13, increasing the water content in the transfer cylinder 13, increasing the difficulty of garbage transportation, and is not conducive to the separation of water in the garbage. The cooled liquid is deposited in the lower channel 152 and enters the water guide cavity 177 of the tube body 171 through the filter screen 178. At the initial position, the piston plate is acted upon by the elastic force of the elastic member 175, and the other end of the hollow channel 174 is blocked by the blocking block 176. Water accumulates in the water guiding chamber 177. As more water accumulates, the piston block 172 moves downward under the action of gravity, the elastic member 175 is compressed, and the movable rod 173 is driven to move downward. The lower end of the movable rod 173 passes through the socket 179, and the bottom end of the hollow channel 174 is separated from the blocking block 176. The liquid in the water guiding chamber passes through the hollow channel 174 and enters the collecting tank 18 for collection. When all the liquid in the water guiding chamber is collected in the collecting tank 18, the movable rod 173 and the piston plate are reset by the rebound action of the elastic member 175, and the lower end of the hollow channel 174 is blocked by the blocking block 176 to prevent the pressure in the air duct 14 from decreasing when a fast airflow passes through the air duct 14. The liquid in the collecting tank 18 is sucked into the air duct 14 under the action of negative pressure, thereby preventing the water in the collecting tank 18 from being sucked into the incinerator. When there is no water accumulation in the water guiding cavity, the air flow flows rapidly in the air duct 14, and negative pressure is formed in the water guiding cavity. The piston plate is pulled upward by the negative pressure to prevent the movable rod 173 from sliding down due to its own gravity, so that the hollow channel 174 is separated from the blocking block 176, further providing better isolation, and preventing the liquid in the collection tank 18 from flowing back into the air duct 14 due to negative pressure.

[0054] Embodiment three:

[0055] refer to Figure 7-10On the basis of the first embodiment, it further includes a garbage conveying amount monitoring unit, the monitoring unit includes an optical system, the optical system includes a laser 19 and an industrial camera 20 arranged just above the conveyor belt 4, the laser 19 irradiates vertically, an industrial camera 20 is arranged on one side of the laser 19, the industrial camera 20 irradiates obliquely, and the laser 19 and the industrial camera 20 are both connected to the inner wall of the inner tube 7. The monitoring unit also includes an industrial computer, the industrial computer is electrically connected to the optical system, and the industrial computer controls the connection to the conveyor belt 4.

[0056] The monitoring method of the monitoring unit includes: in the first step, the optical system collects the garbage feed amount data, transmits the collected data to the industrial computer, and the industrial computer analyzes and processes the collected data;

[0057] In the second step, when the feed amount of garbage is greater than the set threshold, the industrial computer controls the conveyor belt 4 to slow down, and when the feed amount of garbage is less than the set threshold, the industrial computer controls the conveyor belt 4 to speed up.

[0058] Specifically, in the first step, the laser 19 irradiates the garbage on the transmission belt. After the image is obtained by the industrial camera 20, during the data processing of the industrial computer, a reasonable area is set to obtain the laser stripe image, so as to avoid processing the entire image, reduce the workload of data calculation, shorten the image processing time, and fully consider the possible positions of the laser stripes in the obtained garbage transportation image when determining the area, so as to avoid large deviations in the calculation of the garbage flow due to the loss of some laser stripes in the obtained area. In actual application, the area is determined as a rectangle, which is mainly subject to three position constraints: 1. The horizontal length of the area should be consistent with the effective length of the laser stripes on the conveyor belt 4; 2. The lowest point of the area in the vertical direction should include the laser stripes at the lowest point of the surface of the conveyor belt 4 when it is unloaded; 3. The highest point of the area in the vertical direction should include the laser stripes on the garbage surface at the highest point when the belt is fully loaded. After collecting the area, the image is subjected to bilateral filtering and noise reduction processing, which can not only effectively retain the edge information of the laser stripes in the coal flow image, making the laser in the image easier to distinguish, but also blur the image background and eliminate the spot noise formed by garbage reflection, which greatly facilitates the subsequent extraction of laser stripes. After that, the maximum inter-class variance method is used to quickly segment the laser stripes in the image in the acquired laser image.

[0059] Specifically, since the laser stripes in the acquired garbage flow image have a certain width, in order to improve the detection accuracy, the laser stripes with a certain width in the coal flow image are converted into the laser stripe center line that can represent the position of the real center, and a laser stripe extraction method is set to increase the accuracy of garbage flow monitoring and reduce measurement deviation; the method specifically includes the following steps: step 1, segmenting the stripes in the acquired garbage image, and extracting the center skeleton of the laser stripes using the geometric center stripe method according to the shape information of the laser stripes; step 2, assuming that the laser stripe center line skeleton is composed of N pixels in total, taking its initial i-th point (x i ,y i ) and the i+1th point (x i+1 ,y i+1) Connect the lines and calculate the normal direction of all the lines. According to the grayscale information of the laser stripe, the new center point x of the laser stripe is determined by calculating the grayscale centroid value of each pixel. ci ,y ci , the normal direction m of the straight line connecting the two points is calculated according to the slope k between the two points, and m and k satisfy: m = -1 / k = -(x i+1 -x i ) / (y i+1 -y i ); It should be understood that the maximum width of the laser stripe cross section in the collected image is 10 pixels, so only the coordinates of the 10 pixels (including the i+1th point) through which the normal line passes at the i+1th point are counted to prevent the algorithm from slowing down the calculation time due to counting too many redundant pixels. The coordinates of the 10 pixels are marked as (u l ,v 1) ,(u2,v2)...(u 10 ,v 10 ), the corresponding gray value is

[0060] g(u l ,v1),g(u2,v2)...g(u 10 ,v 10 ) ; Calculate the grayscale centroid value of each pixel in the horizontal and vertical directions as the horizontal x value of the new laser stripe center point ci Coordinates and vertical y ci Step 3: Calculate the new center point of the laser stripe (x ci ,y ci ) and the i+1th point (x i+1 ,y i+1), if L is less than or equal to 4, the new laser stripe center point is considered valid, and the new laser stripe center point is used to replace and update the second point in the original laser stripe skeleton; if L is greater than 4, the new laser stripe center point is considered invalid, and the second point in the original laser stripe skeleton is retained; Step 4, according to the above steps 2 and 3, traverse all laser stripe center line skeleton points, and calculate the third point, fourth point, and Nth point of the laser stripe center line skeleton respectively, until all laser stripe center points are extracted, and these center points constitute the laser stripe center line. Through Manhattan distance calculation, not only can the validity of the laser stripe center point be judged, but also the phenomenon of transitional offset of the laser stripe center caused by the appearance of noise or when the laser stripes are wide can be avoided. The volatility of the laser stripe center finally extracted is small, which saves calculation time and improves the calculation accuracy.

[0061] However, in the above process, the extracted laser stripe data will be broken, and there will be multiple discontinuous lines in the image. Therefore, this situation needs to be repaired to form a complete laser line. The specific method is that if there are two discontinuous laser lines in the image, one of which has a left endpoint coordinate of (x0, y0) and the other has a left endpoint coordinate of (x1, y1), the lost laser line is fitted by calculating the straight-line distance l(x) between the two points, then l(x) satisfies: l(x) = y0 + (y1-y0) · (x-x0) / (x1-x0). This method can repair the broken laser stripes, reduce measurement deviation, and improve monitoring accuracy.

[0062] The center line of the laser stripe of the belt contour in the unloaded image of the transmission belt and the center line of the laser stripe in the loaded image of the belt conveyor are superimposed to obtain a closed envelope curve. The figure enclosed by the envelope curve represents the instantaneous cross-sectional shape of the garbage on the belt at a certain moment. For each point of the envelope curve, the height H of the garbage relative to the belt is calculated. i , and the actual width X of each pixel in the horizontal direction i , calculate the garbage flow cross-sectional area S = ∑H i X i ; Given the known conveyor belt speed v and camera sampling frequency f, the volume V of the garbage can satisfy V = (∑H i X i )·v / f; According to the average density ρ of paper and plastic waste, the flow rate m of waste transportation is obtained, m=ρ·(∑H i X i )·v / f.

[0063] In the process of controlling the conveyor belt 4, the industrial computer sends corresponding control instructions to the control inverter of the first motor 201, and then controls the operation of the first motor 201; the industrial computer processes the information collected by the optical system and transmits it to the first motor 201, and the inverter can be used to control the speed of the conveyor belt 4 in real time. It is prevented that the conveyor belt transports too much garbage and forms accumulation in the transfer cylinder 13, and the high-pressure fan 131 cannot blow the crushed garbage into the air duct 14 to avoid blockage.

[0064] Other technical solutions not described in detail in the present invention are all existing technologies in the field and will not be described in detail here.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A feeding device for an incinerator for waste incineration power generation, characterized in that: It comprises a material discharge box (1) and a transfer cylinder (13), wherein a conveying component is provided between the material discharge box (1) and the transfer cylinder (13), and the conveying component conveys garbage from the material discharge box (1) to the transfer cylinder (13); The transfer cylinder (13) is capable of blowing air from the bottom to the top inside the transfer cylinder (13). An air duct (14) is provided at the top of the transfer cylinder (13). The garbage materials in the transfer cylinder (13) are blown out through the air duct (14) and then enter the incinerator for incineration. The air duct (14) is provided with a check piece (15), and the check piece (15) collects excess water in the garbage to prevent it from entering the incinerator, and prevents condensed water vapor in the air duct (14) from flowing back into the transfer cylinder (13); The bottom of the transfer cylinder (13) is provided with a vortex metal tube (132), the vortex metal tube (132) heats the airflow in the transfer cylinder (13) to dehydrate the garbage in the transfer cylinder (13), and the vortex metal tube (132) is provided with a plurality of guide tubes (1321), which form a gas vortex in the transfer cylinder (13); The conveying component comprises a conveying belt (4), an outer sealing tube (6) is provided on the outside of the conveying belt (4), one end of the outer sealing tube (6) is connected to a material discharge box (1), and the other end is connected to a transfer cylinder (13), an inner tube (7) is provided on the inner side of the outer sealing tube (6), the conveying belt (4) is arranged inside the inner tube (7), a cavity (8) is formed between the inner tube (7) and the outer sealing tube (6), a magnetic piston plate (9) is provided inside the cavity (8), and the cavity (8) is close to the transfer cylinder (13) ) is provided with a permanent magnet (10) at one end, the permanent magnet (10) generates a repulsive force on the magnetic piston plate (9); a fan (11) is provided on the outside of the outer sealed tube (6), the output pipe of the fan (11) is connected to the cavity (8), and a vent hole (71) is opened at one end of the inner tube (7) close to the transfer cylinder (13), the exhaust rate of the vent hole (71) is greater than the intake rate of the fan (11); and a closed coil (12) is provided inside the wall of the outer sealed tube (6).

2. A feeding device for a waste incineration power generation incinerator according to claim 1, characterized in that: A cutter (2) is provided in the discharge box (1), and the cutter (2) crushes the garbage. The cutter (2) comprises two symmetrically arranged rotating rollers, namely a first rotating roller and a second rotating roller. The outer surfaces of the two rotating rollers are provided with blades. The first rotating roller is connected to a first motor (201). The first motor (201) is provided with a first gear. The second rotating roller is provided with a second gear. The first gear is meshed with the second gear. The first rotating roller and the second rotating roller rotate in opposite directions. The first rotating roller rotates clockwise, and the second rotating roller rotates counterclockwise. The conveyor belt (4) is arranged at an angle, with one end of the conveyor belt (4) being located inside the unloading box (1) and the other end extending into the transfer cylinder (13).

3. A feeding device for a waste incineration power generation incinerator according to claim 2, characterized in that: The conveyor belt (4) is arranged below the cutter (2). The conveyor belt (4) is provided with a second motor (5). The second motor (5) drives the conveyor belt to rotate. An elastic baffle (21) is provided at the end of the conveyor belt located in the discharge box (1). The elastic baffle (21) prevents the garbage material from sliding off. The elastic baffle (21) is connected to the inner wall of the discharge box (1). A water receiving bucket (3) is provided at the bottom of the discharge box (1).

4. A feeding device for a waste incineration power generation incinerator according to any one of claims 1 to 3, characterized in that: A high-pressure fan (131) is provided at the bottom of the transfer cylinder (13), and an eddy current metal tube (132) is provided inside the transfer cylinder (13). A rotating block (133) is provided below the eddy current metal tube (132), and the eddy current metal tube (132) is rotatably connected to the transfer cylinder (13) via the rotating block (133). The air delivery end of the high-pressure fan (131) is connected to the eddy current metal tube (132), and a plurality of guide tubes (1321) are evenly arranged on the outer peripheral side of the eddy current metal tube (132). The plurality of guide tubes (1321) are spirally connected to the outer wall of the eddy current metal tube (132); an excitation coil (134) is provided inside the side wall of the transfer cylinder (13), and the excitation coil (134) is electrically connected to the closed coil (12).

5. The incinerator feeding device for waste incineration power generation according to claim 1, characterized in that: A cooling element is provided in the downstream direction of the check member (15); a condensing element (16) is provided on the outside of the air duct (14); a cooling liquid is contained in the condensing element (16); and a heat sink is provided in the condensing element (16); the check member (15) is in a spherical structure; an isolation block is provided in the spherical structure; the isolation block divides the inside of the check member (15) into an upper channel (151) and a lower channel (152); both the upper channel (151) and the lower channel (152) are in communication with the air duct (14); a liquid collecting element (17) is connected below the check member (15); a collecting tank (18) is provided at the bottom below the liquid collecting element (17).

6. The incinerator feeding device for waste incineration power generation according to claim 5, characterized in that: The liquid collecting member (17) comprises a tube body (171), one end of the tube body (171) is connected to the check member (15), and the other end is connected to the collection tank (18); a piston block (172) is provided inside the tube body (171); a shielding block (176) is provided at one end of the tube body (171) close to the collection tank (18); a plug hole (179) is provided on the shielding block (176); a movable rod (173) is connected to one side of the piston block (172) close to the shielding block (176); the other end of the movable rod (173) is arranged in the plug hole (179); an elastic member (175) is provided on the movable rod (173); a water guide cavity (177) is formed above the piston block (172); a filter screen (178) is provided at one end of the water guide cavity (177) close to the check member (15).

7. The incinerator feeding device for waste incineration power generation according to claim 1, characterized in that: It also includes a garbage conveying volume monitoring unit, the monitoring unit includes an optical system, the optical system includes a laser (19) and an industrial camera (20) arranged directly above the conveyor belt (4), the laser (19) irradiates vertically, an industrial camera (20) is arranged on one side of the laser (19), and the industrial camera (20) irradiates obliquely, and the laser (19) and the industrial camera (20) are both connected to the inner wall of the inner tube (7).

8. The incinerator feeding device for waste incineration power generation according to claim 7, characterized in that: The monitoring unit also includes an industrial computer, which is electrically connected to the optical system and controls the transmission belt.

9. A feeding device for a waste incineration power generation incinerator according to claim 7 or 8, characterized in that: The monitoring method of the monitoring unit includes: in the first step, the optical system collects the garbage feed amount data, transmits the collected data to the industrial computer, and the industrial computer analyzes and processes the collected data; In the second step, when the garbage feed amount is greater than the set threshold, the industrial computer controls the conveyor belt to slow down, and when the garbage feed amount is less than the set threshold, the industrial computer controls the conveyor belt to speed up.

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