Waste incineration pushing device

Abstract

The invention relates to the technical field of waste incineration, and discloses a waste incineration pushing device which comprises a frame unit, a pushing unit, a water cooling chute and a plurality of percolate hoppers. Wherein the frame unit is composed of a plurality of frame assemblies which are arranged in a linear array; the material pushing unit is composed of a plurality of material pushing assemblies and used for pushing garbage falling from the feeding port into the hearth. The leachate hopper is arranged in the frame assembly and used for filtering out leachate in garbage. The water cooling chute comprises a chute rear wall, two chute side walls, a chute front wall and a water tank. Through the arrangement of the water cooling chute and the water flow channel in the wear-resistant cover plate, high-calorific-value garbage is effectively prevented from spontaneous combustion in advance on the pushing platform, a live wire is prevented from moving forwards, the combustion stability of a hearth and the operation safety of the device are improved, the service life of the pushing device is prolonged, and the practicability is high. And secondly, the method has good engineering application prospects and social and economic benefits.

Description

Technical Field

[0001] The present invention relates to the technical field of waste incineration, and particularly to a waste incineration pusher device. Background Art

[0002] The mechanical reciprocating grate has the advantages of large processing capacity, no need for pre-treatment of waste, full and stable combustion, less fly ash, and low thermal burnout rate, and has become the mainstream process for domestic waste incineration treatment in China. Among them, the reverse reciprocating grate also has the advantages of small floor area, large mechanical load, and small ash leakage, occupying a very large market share, achieving good economic and social benefits, and contributing to the resource utilization of domestic waste.

[0003] However, with the rapid growth of China's economy and the rapid improvement of the urbanization level, coupled with the active promotion of waste classification in some urban areas, the average calorific value of domestic waste in some areas has increased from the original 5000 KJ / kg to more than 9000 KJ / kg. Coupled with the demand for co-disposing industrial waste, the calorific value of the material even exceeds 10000 KJ / kg. This has caused many problems with the reverse grate bars of the mechanical reciprocating grate originally designed for the low calorific value and high moisture content of domestic waste in China. Among them, the most serious one is the pusher device in the waste incineration grate;

[0004] The pusher device in the waste incineration grate is arranged under the feed hopper and in front of the reverse grate, and is used to push the waste material into the furnace and evenly fall on the reverse grate. Since the high-calorific domestic waste or industrial waste has a low moisture content, the required drying time is short, and it is easy to catch fire and burn vigorously, and it can be ignited by the furnace thermal radiation on the pusher device and start to burn. On the one hand, this will cause the forward movement of the combustion front line of the grate, which is not conducive to the stability of furnace combustion, exacerbate the fluctuation of the boiler evaporation capacity, and increase the operation difficulty and frequency of the operators. On the other hand, it is also easy to burn out the components on the pusher device, which will greatly increase the frequency of furnace shutdown and maintenance and the operation cost. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems of unstable furnace combustion caused by the forward movement of the waste combustion point in the waste incineration furnace and the easy damage of the pusher device in the prior art, and to propose a waste incineration pusher device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A garbage incineration pusher device, comprising a frame unit, a pusher unit, a water-cooled chute and a plurality of leachate hoppers; wherein, the frame unit is composed of a plurality of frame components arranged in a linear array; the pusher unit is composed of a plurality of pusher components for pushing the garbage falling from the feed inlet into the furnace interior; the leachate hoppers are arranged in the frame components for filtering the leachate in the garbage; the water-cooled chute is fixedly arranged on the frame unit, and the water-cooled chute includes a chute rear wall, two chute side walls, a chute front wall and a water tank. The chute rear wall, the chute side walls and the chute front wall are all of a water jacket structure. The chute rear wall, the chute side walls and the chute front wall are connected and communicated by a plurality of connecting pipes. The water tank is fixedly installed on one of the chute side walls. The water tank is connected and communicated with the inner lower section position of one of the chute side walls through a water pipe. A plurality of steam outlets are arranged at the tops of the chute rear wall, the chute side walls and the chute front wall.

[0008] As a preferred technical solution of the present invention, the frame component includes two brackets and a plurality of cross beams. The cross beams are commonly fixed between the two brackets. A wear-resistant cover plate is commonly fixed at a position close to the furnace between the two brackets. The wear-resistant cover plate is located inside the water-cooled chute.

[0009] As a preferred technical solution of the present invention, a first chamber is arranged inside the wear-resistant cover plate. A cooling water inlet and a cooling water outlet are respectively arranged on two inner sides of the first chamber. A partition is fixed inside the first chamber. Each partition and the inner side of the first chamber have a gap. All the partitions and the first chamber jointly form a water flow channel, and the water flow channel restricts the water flow to flow along a serpentine trajectory.

[0010] As a preferred technical solution of the present invention, the pusher component includes a driving oil cylinder, a vehicle frame and a plurality of pusher heads. An oil cylinder support frame is fixed on one of the cross beams. The driving oil cylinder is fixed to the frame component through the oil cylinder support frame. The end of the output shaft of the driving oil cylinder is fixed to the vehicle frame. The vehicle frame is slidably installed on the frame component. The pusher heads are fixed at the end of the vehicle frame close to the furnace. The top of the pusher head is slidably connected to the bottom of the chute rear wall.

[0011] As a preferred technical solution of the present invention, a fire-fighting component is arranged on the water-cooled chute. The fire-fighting component includes a fire-fighting pipeline installed on the chute rear wall. A solenoid valve I is arranged on the fire-fighting pipeline. A plurality of nozzles are communicated and arranged on the fire-fighting pipeline. The nozzles extend into the interior of the water-cooled chute. A temperature sensor is further arranged inside the chute rear wall. The temperature sensor is used to control the opening and closing of the solenoid valve I.

[0012] As a preferred technical solution of the present invention, a sewage pipe is communicatively provided at the bottom end of the side wall of one of the chutes. A second solenoid valve is arranged on the sewage pipe. A water replacement pipe is communicatively provided at the top end of the side wall of the chute. A third solenoid valve is arranged on the water replacement pipe. The temperature sensor is further used to control the opening and closing of the second solenoid valve and the third solenoid valve.

[0013] As a preferred technical solution of the present invention, the leachate hopper includes a hopper body, a maintenance door and a leachate discharge port. The hopper body is fixed between two brackets. The maintenance door is arranged on the side wall of the hopper body. The leachate discharge port is communicatively arranged at the bottom of the hopper body. A second chamber is provided inside the wear-resistant cover plate. The second chamber is located on the side wall of the wear-resistant cover plate away from the furnace chamber. A plurality of draining holes are opened on the inner top surface of the second chamber. A discharge port is opened on the inner side of the second chamber, and the discharge port is located above the hopper body. A diversion plate is fixed on the inner side of the second chamber. The diversion plate is used to direct the leachate to the discharge port.

[0014] As a preferred technical solution of the present invention, spray pipes are arranged around the hopper body. A spray water inlet pipe is arranged on the spray pipe. A fourth solenoid valve is arranged on the spray water inlet pipe. A plurality of spray heads are communicatively arranged on the spray pipe. The spray heads extend into the hopper body.

[0015] As a preferred technical solution of the present invention, a plurality of sliding shoes are fixed below the end of the vehicle frame close to the furnace chamber. The bottom of the sliding shoes is slidably connected to the top of the wear-resistant cover plate. A guiding opening is opened on the sliding shoe located at the middle position of the vehicle frame. A guide rail is fixedly installed on the wear-resistant cover plate. The guiding opening and the guide rail are mutually fitted.

[0016] As a preferred technical solution of the present invention, a plurality of scraping shoes arranged in a whole row are installed at the bottom of the rear wall of the chute. The bottom of the scraping shoes is slidably connected to the top of the pusher head.

[0017] The present invention has the following beneficial effects:

[0018] 1. Effectively prevent the spontaneous combustion of garbage on the pusher device and improve the operation safety: By setting the water-cooled chute and the cooling water chamber inside the wear-resistant cover plate, a complete cooling system is formed, which can significantly reduce the temperature environment of the pusher platform and the chute area. The cooling water circulates in the serpentine flow channel, taking away a large amount of heat, thus avoiding the premature ignition of garbage due to high temperature. This design effectively solves the problem of the combustion of high-calorific-value garbage on the traditional pusher device, reduces the risk of the front shift of the fire line, ensures the stability of the furnace combustion condition and the safety of the operators, and has good engineering application prospects and social and economic benefits;

[0019] 2. Integrated leachate separation function to improve incineration efficiency and reduce pollutant emissions: During the pusher process, part of the leachate will be separated from the garbage under extrusion. This device guides the leachate into the leachate hopper through the drainage holes and diversion structure on the wear-resistant cover plate to achieve solid-liquid separation. This design not only reduces the moisture content entering the furnace, improves the combustion efficiency, but also reduces the generation of acidic gases and pollutants in the flue gas, which is beneficial to the operation of the subsequent flue gas purification system and achieves the effect of energy conservation and emission reduction;

[0020] 3. Multiple fire protection and emergency cooling measures to enhance system safety: In this invention, a fire protection component is integrated on the water-cooled chute. When the temperature sensor detects that the cooling water temperature exceeds the set threshold, the solenoid valve is automatically opened to spray water into the water-cooled chute for fire extinguishing. At the same time, solenoid valves are set on the sewage pipe and the water replacement pipe, and rapid cooling and drainage under high temperature conditions are achieved through the controller to prevent equipment overheating and damage. These measures provide multiple safety guarantees for the pusher device, especially suitable for the situation where the garbage composition is complex and there are low ignition point materials. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a garbage incineration pusher device proposed by the present invention;

[0022] Figure 2 is a schematic structural diagram of the frame component;

[0023] Figure 3 is Figure 2 the A-A sectional view of

[0024] Figure 4 is Figure 2 the B-B sectional view of

[0025] Figure 5 is Figure 3 the enlarged view of the structure at C of

[0026] Figure 6 is a schematic structural diagram of the inside of the first chamber;

[0027] Figure 7 is a schematic structural diagram of the leachate hopper;

[0028] Figure 8 is a schematic structural diagram of the pusher component;

[0029] Figure 9 is Figure 8 the top view of

[0030] Figure 10 is Figure 9 the enlarged view of the structure at D of

[0031] Figure 11 is a schematic structural diagram of the water-cooled chute;

[0032] Figure 12 It is the left view of the water-cooled chute;

[0033] Figure 13 It is the structural schematic diagram of the water tank.

[0034] In the figure: 11 support, 111 sealing cover, 1111 sealing door, 12 cross beam, 13 wear-resistant cover plate, 131 first chamber, 1311 cooling water inlet, 1312 cooling water outlet, 1313 partition plate, 132 second chamber, 1321 draining hole, 1322 discharge port, 1323 guide plate, 133 guide rail, 14 oil cylinder support frame, 15 bracket, 16 grab nail, 17 guide wheel track, 18 support wheel track, 21 driving oil cylinder, 22 vehicle frame, 221 sliding shoe, 2211 guide port, 222 guide wheel, 223 support wheel, 23 pusher head, 31 chute rear wall, 311 fire-fighting pipeline, 3111 solenoid valve 1, 3112 nozzle, 312 temperature sensor, 313 scraping shoe, 32 chute side wall, 321 sewage pipe, 3211 solenoid valve 2, 322 water exchange pipe, 3221 solenoid valve 3, 33 chute front wall, 34 water tank, 341 water inlet pipe, 3411 manual valve, 3412 float valve, 35 steam outlet, 36 connecting pipe, 37 water pipe, 41 hopper body, 411 spraying pipeline, 4111 spraying water inlet pipe, 41111 solenoid valve 4, 4112 spray head, 42 maintenance door, 43 leachate discharge port, 431 stainless steel filter screen. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0036] Refer to Figure 1 , a garbage incineration pusher device, including a frame unit, a pusher unit, a water-cooled chute and a plurality of leachate hoppers, which is used to push the garbage dropped from the feed hopper into the furnace;

[0037] Among them, please refer to the attached Figure 2 - attached Figure 4 , the frame unit is composed of a plurality of frame components arranged in a linear array. The frame components are fixedly connected by welding. Each frame component includes two supports 11 and a plurality of cross beams 12. The cross beams 12 are fixedly connected together by welding between the two supports 11. A wear-resistant cover plate 13 is fixedly installed between the two supports 11 near the furnace. The leachate hoppers are arranged in the frame components;

[0038] Please refer to the attached Figure 8, the pusher unit is composed of several pusher components. Each pusher component includes a driving oil cylinder 21, a vehicle frame 22, and several pusher heads 23. An oil cylinder support frame 14 is fixed on one of the cross beams 12. The frame assembly and the oil cylinder support frame 14 together support the reciprocating motion of the pusher component. The driving oil cylinder 21 is fixed to the frame assembly through the oil cylinder support frame 14. It is worth mentioning that the tail of the driving oil cylinder 21 is fixedly installed on the oil cylinder support frame 14, which can prevent the head of the driving oil cylinder 21 from falling and hurting people after it is unlocked. The end of the output shaft of the driving oil cylinder 21 is fixed to the vehicle frame 22. The vehicle frame 22 is slidably installed on the frame assembly. The pusher head 23 is fixed at the end of the vehicle frame 22 close to the furnace chamber, and the end of the vehicle frame 22 close to the furnace chamber and the pusher head 23 extend into the water-cooled chute. The pusher head 23 is made of wear-resistant alloy cast steel and is mainly used to push the garbage forward. The pusher heads 23 are arranged at equal intervals, and there is a certain gap between adjacent pusher heads 23 to absorb the expansion amount after heating;

[0039] Please refer to the appendix Figure 11 , the water-cooled chute is fixedly arranged on the frame unit. All the wear-resistant cover plates 13 are located inside the water-cooled chute. The water-cooled chute includes a chute rear wall 31, two chute side walls 32, a chute front wall 33, and a water tank 34. The side wall of the chute rear wall 31 is provided with inclined support columns to improve the stability of the water-cooled chute. The bottom of the chute rear wall 31 is fixed to the top of each support 11. The bottoms of the two chute side walls 32 are respectively fixed to the tops of the two outermost supports 11 in the frame unit. The chute rear wall 31, the chute side walls 32, and the chute front wall 33 are all water jacket structures, and the two chute side walls 32 are integrally connected to the chute rear wall 31 and the chute front wall 33 by welding. The top of the pusher head 23 is in close contact with the bottom of the chute rear wall 31 and they are slidably connected. The chute rear wall 31, the chute side walls 32, and the chute front wall 33 are connected by several connecting pipes 36. The water tank 34 is fixedly installed on one of the chute side walls 32. The water tank 34 is connected to the lower part inside one of the chute side walls 32 through a water pipe 37. Several steam outlets 35 are provided at the tops of the chute rear wall 31, the chute side walls 32, and the chute front wall 33. The cooling water enters the inside of the water jacket from the water tank 34, absorbs heat and evaporates, and then is discharged from the steam outlets 35, thereby reducing the temperature inside the chute and preventing the garbage inside the chute from spontaneous combustion.

[0040] Furthermore, please refer to the appendix Figure 6, a first chamber 131 is provided inside the wear-resistant cover plate 13. A cooling water inlet 1311 and a cooling water outlet 1312 are respectively provided on both inner sides of the first chamber 131. A partition plate 1313 is fixed inside the first chamber 131. There is a gap between each partition plate 1313 and the inner side of the first chamber 131. All the partition plates 1313 and the first chamber 131 together form a water flow channel, which restricts the water flow to flow along a serpentine trajectory. Secondly, the partition plate 1313 can also be used as a rib plate to support the wear-resistant cover plate 13, improving the stability of the overall structure of the device. Setting this water flow channel increases the contact area and time between the cooling water and the wear-resistant cover plate 13, so as to take away a large amount of heat and ensure a low-temperature environment for the pusher device platform, avoiding spontaneous combustion of garbage on it.

[0041] Further, please refer to the attached Figure 12 , a fire-fighting component is provided on the water-cooled chute. The fire-fighting component includes a fire-fighting pipe 311 installed on the rear wall 31 of the chute. The fire-fighting pipe 311 is externally connected to a water supply pipe. A solenoid valve 3111 is provided on the fire-fighting pipe 311. A number of nozzles 3112 are communicated and provided on the fire-fighting pipe 311. The nozzles 3112 extend into the interior of the water-cooled chute. A temperature sensor 312 is also fixedly installed inside the rear wall 31 of the chute. The temperature sensor 312 is used to control the opening and closing of the solenoid valve 3111. Due to the complexity of the waste raw materials, it is difficult to avoid the mixing of some materials with low ignition points. During the normal operation of the incinerator, when the temperature sensor 312 detects that the temperature of the cooling water in the water jacket exceeds 60 °C, the solenoid valve 3111 is automatically opened. Then, the device can spray tap water into the water-cooled chute through the nozzles 3112 to extinguish the open fire, and most of the sprayed tap water will be discharged from the leachate hopper.

[0042] Further, please refer to the attached Figure 13 , a water inlet pipe 341 is communicated and provided at the upper section position of the side wall of the water tank 34. A manual valve 3411 is arranged on the water inlet pipe 341. The manual valve 3411 is in an open state all the time and is only closed during maintenance. A float valve 3412 is also provided at the position of the water inlet pipe 341 inside the water tank 34. The working principle of the float valve 3412 is based on the buoyancy principle and is mainly composed of a float ball, a connecting rod and a valve. The hollow float ball of the float valve 3412 is located inside the water tank 34. The float ball moves up and down with the rise and fall of the liquid level, and then controls the opening and closing of the valve through the connecting rod. The specific structure and working principle are both prior arts and will not be elaborated here. When the cooling water in the water jacket is reduced due to heat evaporation, and the internal float valve 3412 can automatically open and close according to the liquid level change to maintain the water balance, the cooling water in the water tank 34 is supplemented in time.

[0043] Further, please refer to the attached Figure 12The bottom end of one of the chute side walls 32 is connected to a sewage pipe 321, on which a second solenoid valve 3211 is arranged, and the top end of the chute side wall 32 is connected to a water exchange pipe 322, which is externally connected to cooling water, on which a third solenoid valve 3221 is arranged, and a temperature sensor 312 is used to control the opening and closing of the second solenoid valve 3211 and the third solenoid valve 3221. Specifically, the temperature sensor 312 can convert temperature information into an electrical signal and transmit it to the controller. When it is detected that the temperature exceeds a preset threshold, the controller sends a signal to energize the solenoid valve to open. If the temperature is lower than the threshold, the controller commands the solenoid valve to shut down, thereby realizing the control according to the temperature. The function of automatically controlling the opening and closing of the temperature-controlled solenoid valve, the control structure and working principle of this part are all existing technologies and will not be elaborated on here. During the start-up and shutdown stages of the incinerator, due to the lack of garbage covering, the high-temperature flue gas in the furnace directly contacts the water-cooling chute, and a large amount of heat will cause the cooling water in the water-clamp wall to boil and be discharged in the form of steam. Although the temperature will not exceed 100°C, there is a risk of injury. When the temperature sensor 312 measures that the cooling water temperature in the water-clamp wall exceeds 70°C, first open the solenoid valve 2 3211, and then open the solenoid valve 3 3221, so that a large amount of cooling water can quickly enter the water-clamp wall and be discharged from the drain pipe 321, thereby taking away a large amount of heat and ensuring the safety of equipment and personnel.

[0044] For further information, please see the attached Figure 7 The leachate bucket includes a bucket body 41, an inspection door 42 and a leachate discharge port 43. The bucket body 41 is fixed between two brackets 11. The inspection door 42 is arranged on the side wall of the bucket body 41. The leachate discharge port 43 is connected and arranged at the bottom of the bucket body 41. A second chamber 132 is arranged inside the wear-resistant cover plate 13. The second chamber 132 is located on the side wall of the wear-resistant cover plate 13 away from the furnace. A plurality of leaching holes 1321 are opened on the inner top surface of the second chamber 132. A discharge port 1322 is opened on the inner side of the second chamber 132. The discharge port 1322 is located above the bucket body 41. A guide plate 1323 is fixed inside the second chamber 132. The guide plate 1323 is inclined. The leaching hole 1321 is located above the highest point of the guide plate 1323. The discharge port 1322 is located at the lowest point of the guide plate 1323. During the pushing and squeezing process of the pushing component, some leachate will be precipitated from materials such as garbage. The leachate can fall on the leachate guide plate 1323 through a large number of leaching holes 1321 and enter the bucket body 41 through the discharge port 1322.

[0045] In addition, a ring of spray pipes 411 is arranged around the hopper body 41. The spray pipes 411 are externally connected to a water pump and a water source. A spray water inlet pipe 4111 is provided on the spray pipes 411, and a solenoid valve IV 41111 is provided on the spray water inlet pipe 4111. A number of spray nozzles 4112 are connected to the spray pipes 411, and the spray nozzles 4112 extend into the interior of the hopper body 41. Since the garbage leachate is highly viscous and easily adheres to the inner wall of the leachate hopper, and in addition, a small amount of garbage will fall into it during the long-term operation process, resulting in the leachate hopper being filled with garbage. By regularly opening the solenoid valve IV 41111, the spray water is ejected from the spray nozzles 4112 at high pressure, and the accumulated residues can be washed away. Moreover, a stainless steel filter screen 431 is arranged in the leachate discharge port 43, which can prevent the residues from blocking the leachate pipes in the factory area. The staff can regularly clean the stainless steel filter screen 431 through the inspection door 42.

[0046] Further, please refer to the appendix Figure 3 , brackets 15 and a number of stud nails 16 are fixed at the end of the frame assembly close to the furnace chamber for laying refractory castable and heat-insulating and heat-preserving aluminosilicate blankets to isolate the furnace chamber flame.

[0047] Further, please refer to the appendix Figure 8 - appendix Figure 10 , a number of sliding shoes 221 are fixed below the end of the vehicle frame 22 close to the furnace chamber. The bottom of the sliding shoes 221 is slidably connected to the top of the wear-resistant cover plate 13 and they are in close contact with each other. The sliding shoes 221 are made of heat-resistant cast iron. A certain gap is left between adjacent sliding shoes 221 to absorb the expansion amount after heating. It is mainly used to support the reciprocating movement of the pusher assembly and ensure the service life of the wear-resistant cover plate 13 by wearing itself. A guiding opening 2211 is provided on the sliding shoe 221 located at the middle position of the vehicle frame 22. A guide rail 133 is fixedly installed on the wear-resistant cover plate 13, and the guiding opening 2211 and the guide rail 133 are mutually engaged to improve the stability of the movement of the pusher assembly.

[0048] Further, please refer to the appendix Figure 12 , a number of scraping shoes 313 arranged in a whole row are installed at the bottom of the rear wall 31 of the chute. The bottom of the scraping shoes 313 is slidably connected to and in close contact with the top of the pusher head 23 and the vehicle frame 22. When the pusher assembly reciprocates, some garbage will adhere to it. The scraping shoes 313 are in close contact with the pusher assembly under the action of gravity, which can not only scrape off the garbage adhering to it, but also play a certain sealing role to prevent the high-temperature flue gas from escaping.

[0049] Further, please refer to the appendix Figure 2 , appendix Figure 8 and appendix Figure 9, a guide wheel 222 is installed at the bottom of the frame 22, and support wheels 223 are installed at both sides of the bottom of the frame 22. The guide wheel 222 and the support wheel 223 are vertically arranged and are both located at the end of the bottom of the frame 22 away from the furnace, which is easy to repair and replace. A guide wheel track 17 and two support wheel tracks 18 are jointly installed between one cross beam 12 and the wear-resistant cover plate 13. The guide wheel 222 and the support wheel 223 are respectively located inside the guide wheel track 17 and the support wheel track 18. This part of the structure can play a guiding role in the movement of the frame 22 and improve the stability of the device during operation.

[0050] Further, please refer to the attached Figure 1 and the attached Figure 11 , a sealing cover 111 is fixedly installed at the top of the frame unit. The sealing cover 111 is connected to the top of the bracket 11. One side of the sealing cover 111 is fixedly connected to the side wall of the rear wall 31 of the chute in a sealed manner. The other side of the sealing cover 111 is fixed to the cross beam 12 at the top of the frame assembly, sealing the top of the pusher device. The head of the driving oil cylinder 21 penetrates the side wall of the sealing cover 111, and the two are fixedly connected in a sealed manner. The telescopic end of the driving oil cylinder 21 is located inside the sealing cover 111, and the frame 22 is located below the sealing cover 111. In addition, a plurality of sealing doors 1111 are provided on the sealing cover 111. The sealing doors 1111 correspond to the frame assembly and are usually in a closed state. They can be opened when components such as the guide wheel 222, the support wheel 223, and the sliding shoe 221 need to be regularly repaired and replaced.

[0051] The specific working principle of the present invention is as follows:

[0052] When the garbage in the incinerator feed hopper falls on the wear-resistant cover plate 13, the driving oil cylinder 21 is started. The telescopic end of the driving oil cylinder 21 extends to push the frame 22 to move, so that the pusher head 23 and the sliding shoe 221 push the garbage to move towards the furnace. During this process, part of the leachate generated by the garbage can enter the second chamber 132 through the leaching holes 1321, and then enter the bucket body 41 through the discharge port 1322 under the guiding action of the guide plate 1323. The separation of the leachate and the garbage can reduce the moisture content entering the incinerator and ensure the combustion efficiency;

[0053] At the same time, cooling water is introduced into the cooling water inlet 1311. The cooling water enters the first chamber 131 and flows in a serpentine trajectory under the action of the partition plate 1313 and is discharged from the cooling water outlet 1312. The cooling water can carry the heat on the wear-resistant cover plate 13, ensure a low-temperature environment on the pusher device platform, prevent the garbage from spontaneous combustion on it, and extend the service life of the pusher device;

[0054] Meanwhile, the cooling water in the water tank 34 can enter the water-cooled chute through the water pipe 37. Under the connection effect of the connecting pipe 36, the cooling water spreads throughout the inner part of the water jacket structure of the water-cooled chute. After the cooling water absorbs heat and evaporates, it is discharged from the steam outlet 35, thereby reducing the temperature inside the chute and further preventing the garbage inside the chute from spontaneous combustion.

[0055] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes should be covered within the protection scope of the present invention.

Claims

1. A garbage incineration pusher device, characterized in that, It includes a frame unit, a pusher unit, a water-cooled chute and a number of leachate hoppers; Among them, the frame unit is composed of a number of frame components arranged in a linear array; The pusher unit is composed of a number of pusher components, which are used to push the garbage falling from the feed inlet into the furnace interior; The leachate hoppers are arranged in the frame components and are used to filter the leachate in the garbage; The water-cooled chute is fixedly arranged on the frame unit. The water-cooled chute includes a chute rear wall (31), two chute side walls (32), a chute front wall (33) and a water tank (34). The chute rear wall (31), the chute side walls (32) and the chute front wall (33) are all water jacket wall structures. The chute rear wall (31), the chute side walls (32) and the chute front wall (33) are connected by a number of connecting pipes (36). The water tank (34) is fixedly installed on one of the chute side walls (32). The water tank (34) is connected to the lower position inside one of the chute side walls (32) through a water pipe (37). A number of steam outlets (35) are provided at the tops of the chute rear wall (31), the chute side walls (32) and the chute front wall (33).

2. The waste incineration pusher device according to claim 1, characterized in that, The frame component includes two brackets (11) and a number of cross beams (12). The cross beams (12) are jointly fixed between the two brackets (11). A wear-resistant cover plate (13) is jointly fixed at a position close to the furnace between the two brackets (11). The wear-resistant cover plate (13) is located inside the water-cooled chute.

3. The waste incineration pusher device according to claim 2, characterized in that, A first chamber (131) is arranged inside the wear-resistant cover plate (13). A cooling water inlet (1311) and a cooling water outlet (1312) are respectively arranged on two inner sides of the first chamber (131). A partition plate (1313) is fixed inside the first chamber (131). Each partition plate (1313) has a gap with the inner side of the first chamber (131). All the partition plates (1313) and the first chamber (131) jointly form a water flow channel, and this water flow channel restricts the water flow to flow along a serpentine track.

4. The waste incineration pusher device according to claim 3, wherein The pusher component includes a driving oil cylinder (21), a vehicle frame (22) and a number of pusher heads (23). An oil cylinder support frame (14) is fixed on one of the cross beams (12). The driving oil cylinder (21) is fixed to the frame component through the oil cylinder support frame (14). The end of the output shaft of the driving oil cylinder (21) is fixed to the vehicle frame (22). The vehicle frame (22) is slidably installed on the frame component. The pusher heads (23) are fixed at the end of the vehicle frame (22) close to the furnace. The top of the pusher head (23) is slidably connected to the bottom of the chute rear wall (31).

5. A garbage incineration pusher device according to claim 4, characterized in that, A fire-fighting component is provided on the water-cooled chute. The fire-fighting component includes a fire-fighting pipe (311) installed on the rear wall (31) of the chute. An electromagnetic valve I (3111) is provided on the fire-fighting pipe (311). A number of nozzles (3112) are communicatively connected to the fire-fighting pipe (311). The nozzles (3112) extend into the interior of the water-cooled chute. A temperature sensor (312) is further provided inside the rear wall (31) of the chute. The temperature sensor (312) is used to control the opening and closing of the electromagnetic valve I (3111).

6. A waste incineration pusher device according to claim 5, characterized in that, A sewage discharge pipe (321) is communicatively connected to the bottom end of one of the chute side walls (32). An electromagnetic valve II (3211) is arranged on the sewage discharge pipe (321). A water replacement pipe (322) is communicatively connected to the top end of the chute side wall (32). An electromagnetic valve III (3221) is arranged on the water replacement pipe (322). The temperature sensor (312) is also used to control the opening and closing of the electromagnetic valve II (3211) and the electromagnetic valve III (3221).

7. A waste incineration pusher device according to claim 6, characterized in that, The leachate hopper includes a hopper body (41), a maintenance door (42) and a leachate discharge port (43). The hopper body (41) is fixed between two brackets (11). The maintenance door (42) is arranged on the side wall of the hopper body (41). The leachate discharge port (43) is communicatively connected to the bottom of the hopper body (41). A second chamber (132) is provided inside the wear-resistant cover plate (13). The second chamber (132) is located on the side wall of the wear-resistant cover plate (13) away from the furnace chamber. A number of draining holes (1321) are provided on the inner top surface of the second chamber (132). A discharge port (1322) is provided on the inner side of the second chamber (132). And the discharge port (1322) is located above the hopper body (41). A deflector plate (1323) is fixed on the inner side of the second chamber (132). The deflector plate (1323) is used to direct the leachate to the discharge port (1322).

8. A waste incineration pusher device according to claim 7, characterized in that, A spray pipe (411) is arranged around the hopper body (41). A spray water inlet pipe (4111) is provided on the spray pipe (411). An electromagnetic valve IV (41111) is provided on the spray water inlet pipe (4111). A number of spray heads (4112) are communicatively connected to the spray pipe (411). The spray heads (4112) extend into the interior of the hopper body (41).

9. A waste incineration pusher device according to claim 8, characterized in that, A number of sliding shoes (221) are fixed below the end of the vehicle frame (22) close to the furnace chamber. The bottom of the sliding shoes (221) is slidably connected to the top of the wear-resistant cover plate (13). A guiding opening (2211) is provided on the sliding shoe (221) located at the middle position of the vehicle frame (22). A guide rail (133) is fixedly installed on the wear-resistant cover plate (13). The guiding opening (2211) and the guide rail (133) are mutually engaged.

10. A garbage incineration pusher device according to claim 9, characterized in that, A number of scraping shoes (313) arranged in a whole row are installed at the bottom of the rear wall (31) of the chute. The bottom of the scraping shoes (313) is slidably connected to the top of the pusher head (23).

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