Stable feeding method for waste incinerator

Abstract

The application discloses a stable feeding method for a waste incinerator, which enlarges the diameter of the bottom outlet of a feeding hopper (1) to more than 100 cm, sets a discharging hopper (7) between the feeding hopper (1) and a pipeline, establishes rigid connection between the discharging hopper (7) and a vibration motor (12), separates the discharging hopper (7) from the feeding hopper (1), rigidly connects the discharging hopper (7) with the pipeline, forms a feeding opening (5) with a diameter of 60-80 cm between the discharging hopper (7) and the pipeline, and makes waste in the feeding hopper (1) enter the pipeline through the discharging hopper (7); the vibration motor (12) is started when an arch appears in the discharging hopper (7) and generates a vibration frequency of 16-20 Hz and an amplitude of 2.5-3.0 mm on the discharging hopper (7). The application realizes concentrated vibration excitation for breaking arch, isolation vibration protection for a hydraulic cylinder, leakage prevention of percolate, and continuous and stable waste feeding into the furnace.

Description

Technical Field

[0001] This invention belongs to the field of waste incineration treatment, and particularly relates to a method for stable feeding of waste incinerators. Background Technology

[0002] The hardware route for feeding materials into a waste incinerator mainly includes the following steps:

[0003] First, garbage trucks transport garbage to the storage pit, where it is stored for 3-5 days. During this process, the garbage is turned over and mixed using the grab buckets on the bridge grab crane to homogenize it, and the garbage is also drained during this process.

[0004] Second, the garbage is grabbed by the grab bucket and fed to the corresponding feed hopper in front of the incinerator. The feed hopper must be kept at a medium to high level. The hopper is kept at a low level. The grab bucket is used to replenish the material. When the hopper is full, the grab bucket feeding is stopped.

[0005] Third, a pusher is installed at the bottom of the furnace feed hopper. The pusher consists of a pipe, with the outlet at the bottom of the feed hopper connected to the side wall of the pipe. A piston is installed inside the pipe, one end of which forms a discharge port, and the other end of the pipe has an output end connected to a hydraulic cylinder that connects to the piston. The hydraulic cylinder pushes the piston back and forth at the bottom outlet of the feed hopper, sending the waste discharged from the bottom of the hopper into the furnace. The furnace feed hopper acts as a buffer, and the traveling crane is only responsible for filling the hopper; the pusher is the one that truly controls the speed at which waste enters the furnace.

[0006] In practice, it was found that due to various reasons, waste would form an arch above the feed hopper outlet (waste materials would pile up to form an overhead blockage layer), preventing the waste inside the feed hopper from entering the pusher and thus hindering continuous feeding into the furnace. These reasons include: some wastes are highly viscous, such as kitchen waste and sludge, causing them to stick together and form an arch above the feed hopper outlet; the grab bucket grabs a large amount of waste at once, giving the feed hopper a huge impact force, causing the waste inside the feed hopper to be compacted; although the waste has been pre-treated to crush large pieces, this crushing is not done to a very small size due to cost considerations, and some larger pieces still remain. When multiple larger pieces pass through the feed hopper outlet simultaneously, there is still a certain probability that they will squeeze each other and block the outlet.

[0007] Currently, there are two main methods to achieve stable feeding in waste incinerators. The first is to enlarge the bottom outlet of the feed hopper. However, the outlet size is limited by the pipe diameter of the pusher, and the outlet diameter cannot exceed the pipe diameter, generally not exceeding 70cm. The second method is to install a vibrating motor at the bottom of the feed hopper. The vibration force generated can also damage the arch structure to some extent. However, since the feed hopper and the pusher pipe are rigidly integrated, and the feed hopper is filled with a large amount of waste, the overall mass is large, the vibration has a wide range of influence, and the energy is dispersed, making it difficult to concentrate in the blockage area and thus difficult to damage the strong arch structure.

[0008] If the feed hopper outlet becomes blocked, the incinerator's control system will detect the relevant information and issue an early warning. Workers will then need to open the maintenance door at the bottom of the feed hopper and manually clear the blockage, which increases the management difficulty of the plant and is not conducive to the continuous and stable operation of the incinerator. Summary of the Invention

[0009] The purpose of this invention is to provide a stable feeding method for a waste incinerator, which achieves centralized vibration to break up arches, isolates and protects the hydraulic cylinder from vibration, prevents leakage of filtrate, and ensures continuous and stable feeding of waste into the furnace.

[0010] The technical solution of this invention is as follows: A method for stable feeding of a waste incinerator, wherein the diameter of the bottom outlet of the feeding hopper is enlarged to more than 100cm, a discharge hopper is set between the feeding hopper and the pipeline, the discharge hopper is rigidly connected to the vibrating motor, the discharge hopper is separated from the feeding hopper, and the discharge hopper is rigidly connected to the pipeline, forming a feed inlet with a diameter of 60-80cm between the discharge hopper and the pipeline, and the waste in the feeding hopper enters the pipeline through the discharge hopper; the vibrating motor generates a vibration frequency of 16-20Hz and an amplitude of 2.5-3.0mm on the discharge hopper, and the vibrating motor starts and keeps running for 30-120s when arching occurs in the discharge hopper.

[0011] In the aforementioned stable feeding method for waste incinerators, an annular cutting blade is installed on the piston. When the piston passes through the feed inlet, the cutting blade cuts the connection between the waste inside and outside the pipe, allowing the waste inside the pipe to be smoothly pushed out.

[0012] In the aforementioned stable feeding method for waste incinerators, the vibrating motor is started every 10-30 minutes and kept running for 5-10 seconds.

[0013] In the aforementioned stable feeding method for waste incinerators, the feeding method is achieved through an anti-clogging device, which includes a feeding hopper, a pusher located below the feeding hopper, and a vibration unit;

[0014] The pusher includes a horizontal pipe with a piston inside. One end of the pipe forms a discharge port, and the other end of the pipe is equipped with a drive element that drives the piston to reciprocate linearly. The top of the pipe has a feed port.

[0015] The bottom of the feed hopper is provided with a conical plate, and the bottom of the conical plate is provided with an outlet; a conical discharge hopper is provided on the outside of the conical plate, the conical plate is inserted into the upper part of the discharge hopper, a uniform gap is formed between the conical plate and the discharge hopper, and the lower end of the discharge hopper is connected to the feed port.

[0016] The vibration unit is rigidly connected to the pipeline, and a vibration motor is installed on the vibration unit to provide vibration force to the discharge hopper.

[0017] In the aforementioned stable feeding method for waste incinerators, the lower end of the conical plate is provided with a conical rubber sleeve, and the lower end of the conical rubber sleeve extends to the inner wall of the discharge hopper.

[0018] The side wall of the discharge hopper is provided with multiple inspection ports, and the inspection ports are provided with openable covers.

[0019] In the aforementioned stable feeding method for waste incinerators, the vibration unit includes a fixed frame located below the pipe, a vibration plate between the fixed frame and the pipe, multiple compression springs between the vibration plate and the fixed frame, a vibration motor at the bottom of the vibration plate, and the vibration plate connected to the pipe via an adapter.

[0020] In the aforementioned stable feeding method for waste incinerators, the shaft of the vibrating motor is horizontally positioned, and the fixed frame is provided with multiple guide columns that pass upward through the vibrating plate. Two limiting blocks are provided on the guide columns, and the two limiting blocks are located on the upper and lower sides of the vibrating plate, respectively.

[0021] In the aforementioned stable feeding method for waste incinerators, the driving element includes a hydraulic cylinder fixed to the fixed frame. The output end of the hydraulic cylinder is connected to a piston in sequence through a push rod and a cross slide. The output end of the hydraulic cylinder is ball-jointed with the push rod. The push rod is slidably connected to the fixed frame in the horizontal direction. The cross slide is used to cut off the path for the piston to transmit vibration force to the push rod.

[0022] The cross slide includes a first slide plate and a second slide plate. The first slide plate is slidably connected to the piston in the X direction, and the first slide plate is slidably connected to the second slide plate in the Y direction. The X direction is perpendicular to the Y direction, and the second slide plate is fixed to the push rod.

[0023] In the aforementioned stable feeding method for waste incinerators, the piston has an annular cutting edge on the end face facing the discharge port. The cross-section of the cutting edge is triangular, and the outer wall of the cutting edge is located on the cylindrical surface of the piston.

[0024] The push rod is cylindrical; the fixed frame is equipped with a reduction motor, the output end of the reduction motor is equipped with a drive wheel, the drive wheel is connected to the driven wheel through a belt, the driven wheel is coaxial with the push rod, and the driven wheel is slidably connected to the push rod.

[0025] The outer circumferential surface of the push rod is provided with a sliding groove, and a slider fixed to the driven wheel is provided in the sliding groove; both sides of the driven wheel are provided with plane bearings for connecting the fixing frame, the driven wheel is clamped between the two plane bearings, and the push rod passes through the plane bearings coaxially.

[0026] In the aforementioned stable feeding method for waste incinerators, the driving element includes a hydraulic cylinder fixed to a fixed frame. The output end of the hydraulic cylinder is connected to a piston via a steel cable. A spring is provided on one side of the piston, which provides a driving force to move the piston toward the discharge port. Multiple pulleys are provided on the outer side of the steel cable, and one end of the steel cable is coaxially connected to the hydraulic cylinder through the multiple pulleys.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] First, the diameter of the bottom outlet of the feeding hopper is increased to over 100cm to prevent the formation of arches inside the feeding hopper. To accommodate the pipe diameter, a discharge hopper is added. The waste in the feeding hopper enters the pipe through the discharge hopper. The discharge hopper is rigidly connected to the pipe and separated from the feeding hopper, cutting off the path of vibration energy propagation to the feeding hopper. This allows the energy of the vibrating motor to be mainly concentrated in the discharge hopper, making the energy more concentrated. Combined with appropriate vibration frequency and amplitude, it can better break up the arches, significantly reduce the frequency of material blockage and shutdown, and enable the waste to enter the incinerator stably, achieving stable anti-blocking.

[0029] Secondly, an annular cutting blade is set on the piston end face, which rotates synchronously with the piston's reciprocating push, which can cut off the garbage located at the feed inlet, so that the garbage in the pipeline is smoothly pushed and achieves stable anti-clogging.

[0030] Third, the lower end of the conical plate is equipped with a deformable conical rubber sleeve. The lower end of the rubber sleeve naturally fits the inner wall of the discharge hopper, ensuring that garbage and leachate will not overflow from the gap between the conical plate and the discharge hopper, avoiding leachate dripping, scattered garbage accumulation, and reducing on-site cleaning workload; the rubber material is wear-resistant and corrosion-resistant, and is suitable for high humidity and highly corrosive domestic waste working conditions.

[0031] Fourth, the vibrating plate is equipped with multiple guide columns, and the installation direction of the vibrating motor is limited to a horizontal shaft orientation. This ensures that the vibrating motor can only provide vertical amplitude to the discharge hopper. This amplitude in this direction does not significantly reduce the destructive force on the waste rack arch and does not provide axial vibration force to the hydraulic cylinder, preventing high-frequency axial vibration of the hydraulic cylinder output shaft, reducing wear on internal seals, and lowering the failure rate. Multiple compression springs at the bottom of the vibrating plate act as vibration damping buffers, preventing vibration from being transmitted to the ground and furnace body, and reducing operating noise of equipment in the plant area.

[0032] Fifth, the vibration isolation mechanism of the cross slide in both directions blocks the transmission of vibration. When the piston, pipe and discharge hopper vibrate at high frequency, the cross slide cuts off the transmission path of vibration force to the push rod and hydraulic cylinder through the X and Y bidirectional sliding pairs. The vibration is difficult to transmit to the hydraulic cylinder, avoiding wear of internal components of the hydraulic cylinder and reducing the failure rate.

[0033] Sixth, the push rod's outer circumferential groove and slider are positioned by a plane bearing. The push rod can both extend and retract axially with the hydraulic cylinder to complete the feeding, and can also rotate circumferentially to drive the piston under the drive of the passive wheel. One set of drive rods can simultaneously realize the dual functions of reciprocating feeding and rotary cutting. The equipment has a high degree of structural integration, occupies less space, has fewer parts, and reduces manufacturing costs. Attached Figure Description

[0034] Figure 1 This is a front view structural schematic diagram of the anti-blocking device of Embodiment 1.

[0035] Figure 2 This is a schematic diagram of the vibration unit in Example 1.

[0036] Figure 3 This is a front view schematic diagram of the cross slide 18 in Embodiment 1.

[0037] Figure 4 This is a top view of the cross slide 18 in Embodiment 1.

[0038] Figure 5 yes Figure 1 Enlarged view at point A.

[0039] Figure 6 This is a cross-sectional schematic diagram of the unloading plate in Example 1.

[0040] Figure 7 This is a front view structural schematic diagram of the anti-blocking device of Embodiment 2.

[0041] The labels in the attached diagram are as follows: 1-Feeding hopper, 2-Pusher, 3-Pipe, 4-Piston, 5-Inlet, 6-Conical plate, 7-Discharge hopper, 8-Conical sleeve, 9-Fixed frame, 10-Vibrating plate, 11-Compression spring, 12-Vibrating motor, 13-Guide column, 14-Limit block, 15-Discharge plate, 16-Hydraulic cylinder, 17-Push rod, 18-Cross slide, 19-Discharge port, 20-Cutting blade, 21-Gear motor, 22-Drive wheel, 23-Belt, 24-Driven wheel, 25-Slide groove, 26-Slider, 27-Surface bearing, 28-Inspection port, 29-Cover plate, 30-First slide plate, 31-Second slide plate, 32-Adapter, 33-Steel cable, 34-Spring, 35-Rope pulley. Detailed Implementation

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0043] Example 1: Anti-clogging device, such as Figure 1 As shown, it includes a feeding hopper 1 and a pusher 2 located below the feeding hopper 1. The feeding hopper 1 is connected to the ground by a bracket and is always fixed and suspended. The waste processing capacity of the incinerator is 12t / h.

[0044] The main body of the feed hopper 1 is cylindrical with a diameter of 2.5 meters. The bottom is equipped with a conical plate 6, which forms an angle of 50° with the horizontal plane. The bottom of the conical plate 6 is equipped with an outlet with a diameter of 125 cm.

[0045] The feeder 2 includes a horizontal pipe 3 with an inner diameter of 85cm. A discharge port 19 is formed at the right end of the pipe 3. A feed inlet 5 with a diameter of 75cm is located at the top of the pipe 3. A conical discharge hopper 7 is located at the feed inlet 5, with its upper end extending to the outer side of the lower end of the feed hopper 1. The two overlap by 15cm in the height direction. A uniform gap of 2.5cm is formed between the conical plate 6 and the discharge hopper 7. With the 15cm overlap height and 2.5cm gap width, waste will essentially not overflow from the gap.

[0046] The lower end of the conical plate 6 is provided with a conical rubber sleeve 8, which is made of neoprene rubber, has good corrosion resistance and wear resistance, and is 1.2cm thick. The lower end of the conical rubber sleeve 8 extends to the inner wall of the discharge hopper 7, filling the gap between the conical plate 6 and the discharge hopper 7, thus completely preventing waste from overflowing from the gap. Only the upper end of the conical rubber sleeve 8 remains fixed to the conical plate 6, while its lower part is pressed against the discharge hopper 7 by the waste.

[0047] like Figure 2 As shown, a hollow piston 4 is installed inside the pipe 3. An annular cutting blade 20 is provided on the end face of the piston 4 facing the discharge port 19. The cross-section of the cutting blade 20 is triangular, and the outer wall of the cutting blade 20 is located on the cylindrical surface of the piston 4. When the piston 4 passes through the feed port 5, the cutting blade 20 cuts the waste at the feed port 5.

[0048] A vibration unit is installed at the bottom of the pipe 3. The vibration unit includes a fixed frame 9 located below the pipe 3. The fixed frame is connected to the ground or to the shell of the incinerator. A horizontal vibration plate 10 is installed between the fixed frame 9 and the pipe 3. Multiple compression springs 11 are installed between the vibration plate 10 and the fixed frame 9. A vibration motor 12 is installed at the bottom of the vibration plate 10. The vibration plate 10 is rigidly connected to the pipe 3 through an adapter 32. The shaft of the vibration motor 12 is horizontally set, causing the eccentric block of the vibration motor 12 to rotate in a vertical plane, generating a vibration force in the vertical plane.

[0049] The fixed frame 9 is equipped with multiple guide posts 13 that pass upward through the vibrating plate 10. Each guide post 13 has two limiting blocks 14, located on the upper and lower sides of the vibrating plate 10 respectively. Nuts can be used instead of limiting blocks 14. The distance between the limiting blocks 14 and the vibrating plate 10 is set according to the following principle: when the feed hopper 1 is full of garbage, the compression spring 11 shortens, and the vibrating plate 10 approaches the lower limiting block 14 but does not contact it; when the remaining garbage in the feed hopper 1 reaches 1 / 4 of its volume, the vibrating plate 10 approaches the upper limiting block 14. The remaining garbage in the feed hopper 1 is usually replenished by the grab bucket before it reaches 1 / 4 of its volume, thus leaving space for the vibration and lifting of the pipeline 3. The limiting blocks 14 are not strictly necessary; their limiting function serves as a safety measure. Most of the weight generated by the garbage in the feed hopper 1 is supported by the ground through the feed hopper 1, with only a small portion transferred to the discharge hopper 7.

[0050] A discharge plate 15, fixed to the vibrating plate 10, is provided on the right side of the discharge port 19. The discharge plate 15 has a U-shaped cross-section, with its two side plates opening outwards. The discharge plate 15 is inclined, with an angle of 30° between it and the horizontal plane. After the waste is discharged from the discharge port 19, it enters the incinerator through the discharge plate 15.

[0051] The left end of the pipe 3 is provided with a drive element that drives the piston 4 to reciprocate linearly. The drive element includes a hydraulic cylinder 16 fixed to the fixed frame 9. The output end of the hydraulic cylinder 16 is connected to the piston 4 in sequence through a push rod 17 and a cross slide 18. The output end of the hydraulic cylinder 16 is ball-jointed with the push rod 17. The push rod 17 is cylindrical and is slidably connected to the fixed frame 9 in the horizontal direction.

[0052] like Figure 3 and Figure 4 As shown, the cross slide 18 includes a first slide plate 30 and a second slide plate 31. The first slide plate 30 and the piston 4 are slidably connected in the X-direction by a dovetail joint, and the first slide plate 30 and the second slide plate 31 are slidably connected in the Y-direction by a dovetail joint. The X-direction is perpendicular to the Y-direction. The second slide plate 31 is fixed to the push rod 17. The cross slide 18 is used to cut off the path of the piston 4 transmitting vibration force to the push rod 17. When the X-direction is horizontal and the Y-direction is vertical, when the pipe 3 vibrates, the first slide plate 30 and the second slide plate 31 mainly slide in the Y-direction to offset the vertical vibration transmission, and the first slide plate 30 and the piston 4 slightly slide in the X-direction to offset the small amount of lateral vibration caused by the vertical vibration.

[0053] like Figure 5 and Figure 6As shown, a geared motor 21 is mounted on the fixed frame 9. The output end of the geared motor 21 has a driving wheel 22, which is connected to a driven wheel 24 via a belt 23. The driven wheel 24 is coaxially mounted with the push rod 17. A groove 25 is provided on the outer circumference of the push rod 17, and a slider 26 fixed to the driven wheel 24 is located within the groove 25, allowing the driven wheel 24 to slide smoothly against the push rod 17. Planar bearings 27 connecting the fixed frame 9 are provided on both sides of the driven wheel 24, and the driven wheel 24 is clamped between the two plane bearings 27. The push rod 17 passes coaxially through the plane bearings 27.

[0054] The side wall of the discharge hopper 7 is provided with multiple inspection ports 28. The inspection ports 28 are located below the conical rubber sleeve 8 and have a diameter of 5 cm. The inspection ports 28 are provided with openable cover plates 29, which are screwed to the discharge hopper 7. When arching occurs above the feed inlet 5, the cover plate 29 can be opened, and a pry bar can be inserted through the inspection port 28 to clear the blockage.

[0055] The stable feeding method implemented based on the aforementioned anti-clogging device is as follows: the grab bucket picks up garbage and feeds it into the feed hopper 1, which then enters the pipe 3 through the discharge hopper 7, located to the right of the piston 4. The feed hopper 1 is always kept at a garbage level between 1 / 4 and 3 / 4 of its capacity.

[0056] When hydraulic cylinder 16 extends, it pushes piston 4 to the right via push rod 17 and cross slide 18, pushing the waste on the right side of piston out of discharge port 19. The waste then enters the incinerator via discharge plate 15. When hydraulic cylinder 16 is fully extended, piston 4 remains in a blocking state against inlet 5 to prevent waste from entering the left side of piston 4. After hydraulic cylinder 16 is fully retracted, waste in discharge hopper 7 replenishes the right side of piston 4, awaiting discharge.

[0057] Hydraulic cylinder 16 is connected to a two-position five-way valve connected to a hydraulic station, which obtains oil from the hydraulic station. The two-position five-way valve is connected to the control system of the incinerator. The control system issues a command to switch the two-position five-way valve, causing hydraulic cylinder 16 to perform extension and retraction movements. The extension and retraction frequency represents the speed at which waste enters the furnace, which is the same as existing technology.

[0058] The geared motor 21 is connected to the incinerator's control system. The control system synchronizes the geared motor 21 with the hydraulic cylinder 16, activating it during the extension and retraction of the hydraulic cylinder 16. Both forward and reverse rotation are possible. When the hydraulic cylinder 16 pushes the waste, the geared motor 21 drives the drive wheel 22 to rotate. The drive wheel 22 drives the driven wheel 24 to rotate via the belt 23. The driven wheel 24 drives the piston 4 to rotate via the push rod 17 and the cross slide 18. The piston 4 rotates at 45 r / min. The waste at the feed inlet 5 is cut by the cutting blade 20, separating it into upper and lower parts. The lower part is pushed out, while the upper part remains in the discharge hopper 7. During the extension and retraction of the hydraulic cylinder, the driven wheel 24's two sides are supported by the fixed frame 9 via the plane bearings 27, maintaining its axial position. The slider 26 moves within the slide groove 25. The driven wheel 24 and the push rod 17 remain relatively stationary in the circumferential direction but move axially. Because the waste at the feed inlet 5 is always in a fixed position at the feed inlet 5 (…),… Figure 2 The right side is cut off, and this area is prone to wear. As a preferred option, a replaceable and high-hardness, wear-resistant bushing can be installed at this location. The bushing can be made of hardened 401 stainless steel, which is easy to replace after wear.

[0059] Since the outlet diameter at the bottom of the feeding hopper 1 is not limited by the diameter of the pipe 3, reaching 125cm, the large area prevents arching at the bottom of the feeding hopper 1. Arching mainly occurs inside the discharge hopper 7. The vibrating motor 12 is connected to the incinerator's control system via a frequency converter and starts periodically, adjusting according to the humidity of the waste. When a batch of waste contains a lot of sticky waste, such as kitchen waste, or when the humidity is high, adhesion is easily formed on the inner wall of the discharge hopper 7. In this case, the vibrating motor 12 starts every 15 minutes. When the batch of waste is dry, the vibrating motor 12 starts every 25 minutes, with each start lasting 5-10 seconds. The intermittent starting of the vibrating motor 12 promotes the sliding of waste adhering to the inner wall of the discharge hopper 7, reducing the probability of arching formation. At the same time, it avoids the waste being compacted inside the discharge hopper 7 under prolonged vibration, which could promote arching. However, arching may still form while the vibratory motor 12 is not working. Once arching forms, the incinerator stops accepting waste, and the actual temperature inside the furnace deviates from the theoretical temperature. The incinerator's control system will detect this abnormality and issue an alarm. Under current technology, workers will perform unblocking operations based on this alarm (audio and visual). In Example 1, the control system delays the alarm and immediately starts the vibratory motor 12. The vibratory motor 12 keeps working for 30-120 seconds (the worker can adjust the duration in the control system according to the humidity and viscosity range of the batch of waste, but it should not exceed 120 seconds to avoid the waste from being completely compacted), and continues to wait for a certain period of time (5-8 minutes). If the temperature inside the incinerator still does not rise, an alarm will be issued to remind the worker to handle it manually. The worker will open the cover and insert a pry bar to unblock the waste.

[0060] When the vibrating motor 12 is turned on, it drives the vibrating plate 10 to vibrate up and down at a high frequency. The vibration force is transmitted to the discharge hopper 7, which breaks the arch and causes the garbage to fall back into the pipe. The discharge plate is also vibrated, and the garbage adhering to the discharge plate will slide off. Since there is no rigid connection between the feeding hopper 1 and the discharge hopper 7, the vibration energy transmitted to the feeding hopper 1 and the garbage inside it is greatly reduced. More vibration energy is applied to the discharge hopper 7, making the arch easier to break.

[0061] The vibration frequency of the vibrating motor 12 is set to 16-20Hz via a frequency converter, which is also the vibration frequency of the discharge hopper 7. By adjusting the eccentric block on the vibrating motor 12, an amplitude of 2.5-3.0mm is generated on the discharge hopper 7, preferably 2.8mm. This combination of frequency and amplitude provides good destructive effect against arching. Experiments showed that when the amplitude is less than 2.5mm, the generated energy is insufficient, resulting in poor arch-breaking effect; when the amplitude is greater than 3.0mm, the device structure is easily damaged and cracked; as the frequency increases, the plastic bags and fibrous materials are easily compacted and entangled, leading to increased blockage; as the frequency continues to decrease, the vibration energy is too small, and the destructive force against the arching is insufficient.

[0062] Example 2: Based on Example 1, the structure of the driving element is changed, such as... Figure 7 As shown, the modified drive element includes a hydraulic cylinder 16 fixed to the mounting bracket 9. The output end of the hydraulic cylinder 16 is connected to the piston 4 via a steel cable 33. A spring 34 is provided on one side of the piston 4, which provides a driving force for the piston 4 to move towards the discharge port 19. Four pulleys 35 are provided on the outer side of the steel cable 33. The outer circumferential surface of the pulleys 35 is provided with rope grooves that cooperate with the steel cable 33. The steel cable 33 is clamped by two sets of pulleys 35, with one set of pulleys 35 rotating in the horizontal plane and the other set rotating in the vertical plane. The pulleys 35 are connected to the mounting bracket 9 via corresponding wheel frames. When the right end of the steel cable 33 vibrates, the left end of the steel cable 33 remains coaxially connected to the hydraulic cylinder 16, avoiding radial stress on the hydraulic cylinder 16 and extending its lifespan.

[0063] When the hydraulic cylinder 16 retracts, it pulls the piston 4 to the left via the steel cable 33, compressing the spring 34 so that the piston 4 is located on the left side of the feed inlet. When the hydraulic cylinder 16 extends, the elastic force of the spring 34 pushes the piston 4 to the right, pushing out the garbage in the pipe.

[0064] Compared to Example 2, Example 2 has a simpler structure and lower cost, but its piston 4 cuts off the waste at the feed inlet 5 by punching, which is relatively less effective, and the piston needs to compress the spring 24 for each round trip, resulting in higher energy consumption. In Example 1, the piston 4 cuts off the waste at the feed inlet 5 by squeezing and rotating, which is more effective, and the cutting edge 20 wears evenly upwards, resulting in a longer service life.

[0065] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations.

Claims

1. A method for stable feeding into a waste incinerator, characterized in that: The bottom outlet diameter of the feeding hopper (1) is increased to more than 100cm. A discharge hopper (7) is set between the feeding hopper (1) and the pipe. The discharge hopper (7) is rigidly connected to the vibrating motor (12). The discharge hopper (7) is separated from the feeding hopper (1). The discharge hopper (7) is rigidly connected to the pipe. A feed inlet (5) with a diameter of 60-80cm is formed between the discharge hopper (7) and the pipe. The garbage in the feeding hopper (1) enters the pipe through the discharge hopper (7). The vibration motor (12) generates a vibration frequency of 16-20Hz and an amplitude of 2.5-3.0mm on the discharge hopper (7). The vibration motor (12) starts and keeps running for 30-120s when arching occurs in the discharge hopper (7).

2. The stable feeding method for a waste incinerator according to claim 1, characterized in that: A ring-shaped cutting edge (20) is set on the piston (4). When the piston (4) passes through the feed port (5), the cutting edge (20) cuts the connection between the garbage inside and outside the pipe, so that the garbage inside the pipe is pushed out smoothly.

3. The stable feeding method for a waste incinerator according to claim 1, characterized in that: The vibration motor (12) starts once every 10-30 minutes and keeps running for 5-10 seconds.

4. The stable feeding method for a waste incinerator according to claim 1, 2, or 3, characterized in that: The feeding method is achieved by an anti-blocking device, which includes a feeding hopper (1), a pusher (2) located below the feeding hopper (1), and a vibration unit; The pusher (2) includes a horizontal pipe (3), a piston (4) is provided inside the pipe (3), a discharge port (19) is formed at one end of the pipe (3), a drive element for driving the piston (4) to reciprocate linearly is provided at the other end of the pipe (3), and a feed port (5) is provided at the top of the pipe (3). The bottom of the feeding hopper (1) is provided with a conical plate (6), and the bottom of the conical plate (6) is provided with an outlet; a conical discharge hopper (7) is provided on the outside of the conical plate (6), the conical plate (6) is inserted into the upper part of the discharge hopper (7), a uniform gap is formed between the conical plate (6) and the discharge hopper (7), and the lower end of the discharge hopper (7) is connected to the feed inlet (5); The vibration unit is rigidly connected to the pipe (3), and the vibration unit is equipped with a vibration motor (12). The vibration unit provides vibration force to the discharge hopper (7).

5. The stable feeding method for a waste incinerator according to claim 4, characterized in that: The lower end of the conical plate (6) is provided with a conical rubber sleeve (8), and the lower end of the conical rubber sleeve (8) extends to the inner wall of the discharge hopper (7). The discharge hopper (7) has multiple inspection ports (28) on its side wall, and the inspection ports (28) are equipped with openable cover plates (29).

6. The stable feeding method for a waste incinerator according to claim 4, characterized in that: The vibration unit includes a fixed frame (9) located below the pipe (3), a vibration plate (10) is provided between the fixed frame (9) and the pipe (3), a plurality of compression springs (11) are provided between the vibration plate (10) and the fixed frame (9), a vibration motor (12) is provided at the bottom of the vibration plate (10), and the vibration plate (10) is connected to the pipe (3) through an adapter (32).

7. The stable feeding method for a waste incinerator according to claim 6, characterized in that: The shaft of the vibration motor (12) is set horizontally, and the fixed frame (9) is provided with a number of guide posts (13) that pass upward through the vibration plate (10). The guide posts (13) are provided with two limiting blocks (14), which are located on the upper and lower sides of the vibration plate (10) respectively.

8. The stable feeding method for a waste incinerator according to claim 4, characterized in that: The driving element includes a hydraulic cylinder (16) fixed to the fixed frame (9). The output end of the hydraulic cylinder (16) is connected to the piston (4) in sequence through the push rod (17) and the cross slide (18). The output end of the hydraulic cylinder (16) is ball-jointed with the push rod (17). The push rod (17) is slidably connected to the fixed frame (9) in the horizontal direction. The cross slide (18) is used to cut off the path of the piston (4) to transmit vibration force to the push rod (17). The cross slide (18) includes a first slide plate (30) and a second slide plate (31). The first slide plate (30) is slidably connected to the piston (4) in the X direction, and the first slide plate (30) and the second slide plate (31) are slidably connected in the Y direction. The X direction is perpendicular to the Y direction, and the second slide plate (31) is fixed to the push rod (17).

9. The stable feeding method for a waste incinerator according to claim 8, characterized in that: The piston (4) has an annular cutting blade (20) on its end face facing the discharge port (19). The cross-section of the cutting blade (20) is triangular, and the outer wall of the cutting blade (20) is located on the cylindrical surface of the piston (4). The push rod (17) is cylindrical; the fixed frame (9) is equipped with a reduction motor (21), the output end of the reduction motor (21) is equipped with a drive wheel (22), the drive wheel (22) is connected to the driven wheel (24) through a belt (23), the driven wheel (24) is coaxially arranged with the push rod (17), and the driven wheel (24) is slidably connected to the push rod (17); The outer circumferential surface of the push rod (17) is provided with a groove (25), and a slider (26) fixed to the driven wheel (24) is provided in the groove (25); both sides of the driven wheel (24) are provided with a plane bearing (27) for connecting the fixing frame (9), the driven wheel (24) is clamped between the two plane bearings (27), and the push rod (17) passes through the plane bearing (27) coaxially.

10. The stable feeding method for a waste incinerator according to claim 4, characterized in that: The driving element includes a hydraulic cylinder (16) fixed to the fixed frame (9). The output end of the hydraulic cylinder (16) is connected to the piston (4) via a steel cable (33). A spring (34) is provided on one side of the piston (4). The spring (34) provides a driving force for the piston (4) to move towards the discharge port (19). Multiple pulleys (35) are provided on the outside of the steel cable (33). The multiple pulleys (35) keep one end of the steel cable (33) coaxially connected to the hydraulic cylinder (16).

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