A waste incineration pushing device

Abstract

The application relates to the garbage incineration technical field and discloses a garbage incineration pushing device, which comprises a frame unit, a pushing unit, a water-cooled chute and a plurality of leachate buckets; wherein the frame unit is composed of a plurality of frame assemblies arranged in a linear array; the pushing unit is composed of a plurality of pushing assemblies and is used for pushing the garbage falling from a feeding port into the interior of a hearth; the leachate bucket is arranged in the frame assembly and is used for filtering the leachate in the garbage; and the water-cooled chute comprises a chute back wall, two chute side walls, a chute front wall and a water tank. The water flow channels in the water-cooled chute and the wear-resistant cover plate are arranged, high-calorific-value garbage is effectively prevented from self-igniting in advance on the pushing platform, the fire line is prevented from moving forward, the stability of hearth combustion and the safety of device operation are improved, the service life of the pushing device is prolonged, and the garbage incineration pushing device has good engineering application prospects and social and economic benefits.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste incineration, in particular to a waste incineration pushing device. BACKGROUND

[0002] The mechanical reciprocating grate has the advantages of large processing capacity, no need for pretreatment of waste, stable combustion, less fly ash, and low heat loss, and has become the mainstream process for waste incineration in China. The reverse reciprocating grate also has the advantages of small land occupation, large mechanical load, and small ash leakage, and has occupied a large market share, achieved good economic and social benefits, and contributed to the resource utilization of waste.

[0003] However, with the rapid economic growth and urbanization of China, and the active promotion of waste classification in some urban areas, the average calorific value of waste in some areas has increased from 5000 KJ / kg to more than 9000 KJ / kg. In addition, the demand for co-processing of industrial waste has increased the calorific value of the material to more than 10000 KJ / kg. This has caused many problems in the mechanical reciprocating grate reverse push grate designed for low calorific value and high moisture content of waste in China, of which the most serious problem is the pushing device in the waste incineration grate.

[0004] The pushing device in the waste incineration grate is arranged below the feed hopper and in front of the reverse push grate, and is used to push the waste material into the furnace and evenly fall on the reverse push grate. Due to the low moisture content of high-calorific-value waste or industrial waste, the drying time is short, and the ignition is easy to burn. The material on the pushing device can be ignited and start to burn by the heat radiation from the furnace, which will cause the forward movement of the combustion line of the grate, which is not conducive to the stable combustion of the furnace, and will increase the volatility of the boiler evaporation capacity, the operation difficulty and frequency of the operator, and the other hand, it is also easy to burn out the components on the pushing device, which will greatly increase the frequency of shutdown and maintenance and the operation cost. SUMMARY

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

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

[0007] The utility model provides a garbage incineration pushes the device for material, including frame unit, pushes material unit, water cooling chute and a plurality of percolate liquid bucket, wherein, frame unit is by a plurality of linear array arrangement frame assembly constitutes, pushes material unit is by a plurality of pushing material subassembly constitutes, is used for pushing the garbage of feeding port drop into the inside of furnace, percolate liquid bucket is arranged in frame assembly, is used for filtering the percolate liquid in garbage, water cooling chute is fixedly arranged on frame unit, water cooling chute includes chute back wall, two chute side walls, chute front wall and water tank, chute back wall, chute side wall and chute front wall are all water sandwiched wall structure, chute back wall, chute side wall and chute front wall are connected through a plurality of connecting pipes, water tank is fixedly installed on one of chute side walls, water tank is connected through water pipe with one of the inside lower section position of chute side wall, the top of chute back wall, chute side wall and chute front wall is equipped with a plurality of steam outlet.

[0008] As a preferred technical scheme of the present application, the frame assembly includes two supports and a plurality of cross beams, the cross beams are fixedly connected between the two supports, and a wear-resistant cover plate is fixedly connected between the two supports near the furnace. The wear-resistant cover plate is located inside the water cooling chute.

[0009] As a preferred technical scheme of the present application, a first cavity is arranged in the wear-resistant cover plate, cooling water inlets and outlets are arranged on the two inner sides of the first cavity, and baffles are fixedly arranged in the first cavity. Each baffle has a gap with the inner side of the first cavity, and all the baffles and the first cavity form a water flow channel together. The water flow channel limits the water flow to flow along a serpentine trajectory.

[0010] As a preferred technical scheme of the present application, the pushing material subassembly includes a driving oil cylinder, a frame, and a plurality of pushing heads. One of the cross beams is fixedly connected with an oil cylinder support frame, the driving oil cylinder is fixedly connected with the frame assembly through the oil cylinder support frame, the output shaft of the driving oil cylinder is fixedly connected with the frame, the frame is slidingly installed on the frame assembly, the pushing heads are fixedly connected with the end of the frame near the furnace, and the top of the pushing head is slidingly connected with the bottom of the chute back wall.

[0011] As a preferred technical scheme of the present application, a fire-fighting assembly is arranged on the water cooling chute. The fire-fighting assembly includes a fire-fighting pipeline arranged on the chute back wall, an electromagnetic valve one arranged on the fire-fighting pipeline, a plurality of nozzles arranged on the fire-fighting pipeline in communication, the nozzles extending into the water cooling chute, and a temperature sensor arranged in the chute back wall. The temperature sensor is used to control the opening and closing of the electromagnetic valve one.

[0012] As a preferred technical scheme of the present application, the bottom end position of one of the chute side walls is connected with a blowdown pipe, an electromagnetic valve two is arranged on the blowdown pipe, the top end position of the chute side wall is connected with a water replacement pipe, an electromagnetic valve three is arranged on the water replacement pipe, and the temperature sensor is further used to control the opening and closing of the electromagnetic valve two and the electromagnetic valve three.

[0013] As a preferred technical scheme of the present application, the leachate tank comprises a tank body, an inspection door and a leachate discharge port, the tank body is fixed between two supports, the inspection door is arranged on the side wall of the tank body, the leachate discharge port is connected and arranged at the bottom of the tank body, the inside of the wear-resistant cover plate is provided with a second chamber, the second chamber is located on the side wall of the wear-resistant cover plate away from the hearth, a plurality of leaching holes are arranged on the inner top surface of the second chamber, a discharge port is arranged on the inner side of the second chamber and located above the tank body, a flow guide plate is fixed on the inner side of the second chamber, and the flow guide plate is used to guide the leachate to the discharge port.

[0014] As a preferred technical scheme of the present application, a spraying pipeline is arranged around the tank body, a spraying water inlet pipe is arranged on the spraying pipeline, an electromagnetic valve four is arranged on the spraying water inlet pipe, a plurality of spray heads are connected and arranged on the spraying pipeline, and the spray heads extend into the inside of the tank body.

[0015] As a preferred technical scheme of the present application, a plurality of sliding shoes are fixed below the end of the vehicle frame close to the hearth, the bottom of the sliding shoe is in sliding connection with the top of the wear-resistant cover plate, a guide hole is arranged on the sliding shoe at the middle position of the vehicle frame, a guide rail is fixedly installed on the wear-resistant cover plate, and the guide hole and the guide rail are mutually embedded.

[0016] As a preferred technical scheme of the present application, a plurality of scraping shoes arranged in a row are installed on the bottom of the chute rear wall, and the bottom of the scraping shoe is in sliding connection with the top of the pushing head.

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

[0018] 1. Effectively prevent garbage from self-igniting on the pushing device, improve operation safety: the present application forms a complete cooling system through the water-cooled chute and the cooling water chamber in the wear-resistant cover plate, which can greatly reduce the temperature environment of the pushing platform and the chute area. The cooling water circulates in the serpentine flow channel and carries away a large amount of heat, thereby avoiding the garbage from igniting in advance due to high temperature. This design effectively solves the problem that high-calorific-value garbage burns on the traditional pushing device, reduces the risk of fire line moving forward, guarantees the stability of the hearth combustion condition and the safety of the operator, and has good engineering application prospect and social and economic benefits.

[0019] 2. Integrated leachate separation function to improve incineration efficiency and reduce pollutant emissions: During the feeding process, some leachate will be released when the waste is squeezed. This device guides the leachate into the leachate hopper through the drainage holes and flow guiding structure on the wear-resistant cover plate to achieve solid-liquid separation. This design not only reduces the moisture content entering the furnace and improves 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 saving and emission reduction.

[0020] 3. Multiple fire-fighting and emergency cooling measures enhance system safety: This invention integrates fire-fighting components into the water-cooled chute. When the temperature sensor detects that the cooling water temperature exceeds the set threshold, the solenoid valve automatically opens to spray water into the water-cooled chute to extinguish the fire. At the same time, solenoid valves are installed on the sewage pipe and water exchange pipe, and the controller enables rapid cooling and drainage under high temperature conditions to prevent the equipment from overheating and being damaged. These measures provide multiple safety guarantees for the feeding device, and are especially suitable for situations where the waste composition is complex and low-ignition-point materials are present. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a waste incineration feeding device proposed in this invention;

[0022] Figure 2 This is a structural diagram of the framework components;

[0023] Figure 3 for Figure 2 Sectional view along axis AA;

[0024] Figure 4 for Figure 2 BB-direction sectional view;

[0025] Figure 5 for Figure 3 Enlarged view of the structure at point C;

[0026] Figure 6 This is a schematic diagram of the internal structure of the first chamber;

[0027] Figure 7 This is a schematic diagram of the percolate hopper.

[0028] Figure 8 This is a schematic diagram of the material feeding assembly;

[0029] Figure 9 for Figure 8 Top view;

[0030] Figure 10 for Figure 9 Enlarged view of the structure at point D;

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

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

[0033] Figure 13 is a structural schematic view of the water tank.

[0034] In the figure: 11 support, 111 sealing cover, 1111 sealing door, 12 crossbeam, 13 wear-resistant cover plate, 131 first chamber, 1311 cooling water inlet, 1312 cooling water outlet, 1313 partition, 132 second chamber, 1321 leakage hole, 1322 discharge port, 1323 flow 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 pushing head, 31 chute back wall, 311 fire-fighting pipeline, 3111 electromagnetic valve one, 3112 nozzle, 312 temperature sensor, 313 scraping shoe, 32 chute side wall, 321 sewage pipe, 3211 electromagnetic valve two, 322 water replacement pipe, 3221 electromagnetic valve three, 33 chute front wall, 34 water tank, 341 water inlet pipe, 3411 hand valve, 3412 floating ball valve, 35 steam outlet, 36 connecting pipe, 37 water pipe, 41 bucket body, 411 spraying pipeline, 4111 spraying water inlet pipe, 41111 electromagnetic valve four, 4112 spray head, 42 maintenance door, 43 leachate discharge port, 431 stainless steel filter screen. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0036] Reference Figure 1 A garbage incineration pushing device, comprising a frame unit, a pushing unit, a water-cooled chute and a plurality of leachate buckets, for pushing the garbage dropped by the feeding hopper into the furnace;

[0037] Wherein, please refer to the attached Figure 2 -attached Figure 4 The frame unit is composed of a plurality of frame assemblies arranged in a straight line array, the frame assemblies are fixedly connected through welding, each frame assembly comprises two supports 11 and a plurality of crossbeams 12, the crossbeams 12 are fixedly connected together between the two supports 11 through welding, and the wear-resistant cover plate 13 is fixedly connected together at a position close to the furnace between the two supports 11, and the leachate bucket is arranged in the frame assembly;

[0038] Please refer to the attached Figure 8The pushing unit is composed of a plurality of pushing assemblies, each of which comprises a driving oil cylinder 21, a frame 22 and a plurality of pushing heads 23. One of the cross beams 12 is fixed with an oil cylinder support frame 14, the frame assembly and the oil cylinder support frame 14 are used for supporting the reciprocating movement of the pushing assembly, the driving oil cylinder 21 is fixed with the frame assembly through the oil cylinder support frame 14, and the tail of the driving oil cylinder 21 is fixedly installed on the oil cylinder support frame 14, so that the head of the driving oil cylinder 21 cannot fall off and injure people after being disengaged, the output shaft of the driving oil cylinder 21 is fixed with the frame 22, the frame 22 is slidingly installed on the frame assembly, the pushing head 23 is fixed at the end of the frame 22 close to the hearth, and the end of the frame 22 close to the hearth and the pushing head 23 extend into the water-cooled chute, the pushing head 23 is made of wear-resistant alloy cast steel and is mainly used for pushing the garbage forward, the pushing heads 23 are equidistantly arranged and a certain gap is left between the adjacent pushing heads 23 for absorbing the expansion amount after being heated;

[0039] Please refer to the accompanying drawings Figure 11 The water-cooled chute is fixedly arranged on the frame unit, and all the wear-resistant cover plates 13 are located in the water-cooled chute, the water-cooled chute comprises 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 is provided with inclined support columns on the side wall, so as to improve the stability of the water-cooled chute, the bottom of the chute rear wall 31 is fixed with the top of each support 11, the bottoms of the two chute side walls 32 are respectively fixed with 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-jacketed structures, and the two chute side walls 32 are integrally connected with the chute rear wall 31 and the chute front wall 33 through welding, the top of the pushing head 23 is tightly attached to the bottom of the chute rear wall 31 and is slidingly connected with the bottom, the chute rear wall 31, the chute side walls 32 and the chute front wall 33 are connected and communicated through a plurality 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 and communicated with the inside lower segment position of one of the chute side walls 32 through a water pipe 37, the top of the chute rear wall 31, the chute side walls 32 and the chute front wall 33 is provided with a plurality of steam outlets 35, the cooling water enters the water-jacketed structure from the water tank 34, is evaporated after absorbing heat and is discharged from the steam outlets 35, so as to reduce the temperature in the chute and avoid spontaneous combustion of the garbage in the chute.

[0040] Further, please refer to the accompanying drawings Figure 6The first chamber 131 is provided in the wear-resistant cover plate 13, cooling water inlets 1311 and cooling water outlets 1312 are respectively arranged on two inner sides of the first chamber 131, and the first chamber 131 is fixed with baffles 1313; each baffle 1313 has a gap with the inner side of the first chamber 131, and all the baffles 1313 and the first chamber 131 jointly form a water flow channel, which limits the water flow to flow along a serpentine trajectory; in addition, the baffle 1313 also serves as a rib plate to support the wear-resistant cover plate 13, thereby improving the stability of the overall structure of the device; the water flow channel increases the contact area and time of the cooling water with the wear-resistant cover plate 13, so that a large amount of heat can be taken away to ensure a low-temperature environment of the pushing device platform and prevent garbage from self-igniting on the platform.

[0041] Further, please refer to the accompanying drawings Figure 12 A fire-fighting assembly is arranged on the water-cooled chute, the fire-fighting assembly comprises a fire-fighting pipeline 311 mounted on the rear wall 31 of the chute, the fire-fighting pipeline 311 is connected with a tap water pipe, an electromagnetic valve 3111 is arranged on the fire-fighting pipeline 311, a plurality of nozzles 3112 are arranged on the fire-fighting pipeline 311 in communication, the nozzles 3112 extend into the water-cooled chute, and a temperature sensor 312 is further fixedly arranged in the rear wall 31 of the chute; the temperature sensor 312 is used to control the opening and closing of the electromagnetic valve 3111; due to the complexity of garbage raw materials, it is difficult to avoid the mixing of some low-ignition-point materials; 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℃, the electromagnetic valve 3111 is automatically opened, and then the device can spray tap water into the water-cooled chute through the nozzles 3112 to extinguish open flames; and most of the sprayed tap water is discharged from the leachate bucket.

[0042] Further, please refer to the accompanying drawings Figure 13 A water inlet pipe 341 is arranged on the upper section of the side wall of the water tank 34 in communication, a hand valve 3411 is arranged on the water inlet pipe 341, the hand valve 3411 is in a normally open state and is closed only during maintenance, and a float ball valve 3412 is further arranged on the position of the water inlet pipe 341 in the water tank 34; the float ball valve 3412 is based on the principle of buoyancy and mainly comprises a float ball, a connecting rod and a valve; the hollow float ball of the float ball valve 3412 is located in the water tank 34, and the float ball moves up and down with the rise and fall of the liquid level, thereby controlling the opening and closing of the valve through the connecting rod; the specific structure and working principle are both prior art and will not be described in detail here; when the cooling water in the water jacket is heated and evaporated, the float ball valve 3412 in the water jacket can automatically open and close according to the change of the liquid level to maintain the water balance, thereby supplementing the cooling water in the water tank 34 in time.

[0043] Further, please refer to the accompanying drawings Figure 12One of the chute side wall 32 bottom end position is communicated with a drain pipe 321, the drain pipe 321 is arranged with electromagnetic valve two 3211, the top end position of the chute side wall 32 is communicated with water changing pipe 322, the water changing pipe 322 is connected with cooling water, the water changing pipe 322 is arranged with electromagnetic valve three 3221, temperature sensor 312 is used to control the opening and closing of electromagnetic valve two 3211 and electromagnetic valve three 3221, specifically, temperature sensor 312 can convert temperature information into electrical signal and transmit to the controller, when detecting that the temperature exceeds the preset threshold, the controller sends a signal to make the electromagnetic valve energized and open, if the temperature is lower than the threshold, the controller commands the electromagnetic valve to be de-energized and closed, so as to realize the function of automatically controlling the opening and closing of electromagnetic valve according to temperature, the control structure and working principle of this part are prior art, and will not be described in detail here, during the start and stop of the incinerator, because there is no garbage covering, the high temperature flue gas in the furnace directly contacts with the water cooled chute, a large amount of heat will cause the cooling water in the water jacket to boil and be discharged in the form of steam, although the temperature will not exceed 100 DEG C, but there is a risk of injury, when the temperature sensor 312 measures that the cooling water temperature in the water jacket exceeds 70 DEG C, electromagnetic valve two 3211 is opened first, and then electromagnetic valve three 3221 is opened, so that a large amount of cooling water can quickly enter the water jacket and be discharged from the drain pipe 321, so as to take away a large amount of heat and ensure the safety of equipment and personnel.

[0044] Further, please refer to the attached Figure 7 The leachate bucket includes a bucket body 41, an access door 42 and a leachate discharge port 43, the bucket body 41 is fixed between the two supports 11, the access door 42 is arranged on the side wall of the bucket body 41, the leachate discharge port 43 is arranged in the bottom of the bucket body 41, the inside of the wear-resistant cover plate 13 is provided with a second chamber 132, 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 arranged on the inner top surface of the second chamber 132, a discharge port 1322 is arranged on the inner side of the second chamber 132, and the discharge port 1322 is located above the bucket body 41, a flow guide plate 1323 is fixed on the inner side of the second chamber 132, the flow guide plate 1323 is arranged in an inclined manner, the leaching holes 1321 are located above the highest part of the flow guide plate 1323, and the discharge port 1322 is located at the lowest part of the flow guide plate 1323, part of the leachate can be separated out during the pushing and extruding process of the material pushing assembly, and the leachate can fall on the leachate flow 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 circle of spray pipes 411 is arranged around the hopper body 41, the spray pipes 411 are connected with a water pump and a water source, a spray water inlet pipe 4111 is arranged on the spray pipes 411, an electromagnetic valve four 41111 is arranged on the spray water inlet pipe 4111, a plurality of spray heads 4112 are arranged on the spray pipes 411 and extend into the interior of the hopper body 41, due to the large viscosity of the landfill leachate, the landfill leachate is easy to adhere to the inner wall of the leachate hopper, and a small amount of garbage will fall into the leachate hopper during long-term operation, so that the leachate hopper is filled with garbage, by periodically opening the electromagnetic valve four 41111, the spray water is sprayed from the spray heads 4112 at high pressure, the accumulated residues can be washed away, and a stainless steel filter screen 431 is arranged in the leachate discharge port 43, which can avoid the residues from blocking the leachate pipeline of the plant area, and the maintenance door 42 can be used to periodically clean the stainless steel filter screen 431.

[0046] Further, please refer to the accompanying drawings Figure 3 The end of the frame assembly close to the hearth is fixed with a bracket 15 and a plurality of grab nails 16 for laying castable and dry insulation aluminum silicate blanket to insulate the hearth flame.

[0047] Further, please refer to the accompanying drawings Figure 8 - the accompanying drawings Figure 10 The end of the frame 22 close to the hearth is fixed with a plurality of slide shoes 221 below, the bottom of the slide shoes 221 is slidingly connected with the top of the wear-resistant cover plate 13, and the two are in close contact, the slide shoes 221 are made of heat-resistant cast iron, and a certain gap is left between adjacent slide shoes 221 for absorbing the expansion amount after being heated, mainly used to support the back-and-forth movement of the pushing assembly and ensure the service life of the wear-resistant cover plate 13 by wearing itself, a guide hole 2211 is formed in the slide shoe 221 located at the middle position of the frame 22, and a guide rail 133 is fixedly installed on the wear-resistant cover plate 13, the guide hole 2211 and the guide rail 133 are embedded with each other to improve the stability of the movement of the pushing assembly.

[0048] Further, please refer to the accompanying drawings Figure 12 A plurality of scraping shoes 313 arranged in a row are installed at the bottom of the chute rear wall 31, the bottom of the scraping shoes 313 is slidingly connected with the top of the pushing head 23 and the frame 22 and is in close contact, part of the garbage will adhere to the pushing assembly during the back-and-forth reciprocating movement of the pushing assembly, the scraping shoes 313 are in close contact with the pushing assembly under the action of gravity, which not only can scrape off the garbage adhered thereto, but also can play a certain sealing effect to prevent high-temperature flue gas from escaping.

[0049] Further, please refer to the accompanying drawings Figure 2 , the accompanying drawings Figure 8 and the accompanying drawings Figure 9The bottom of the frame 22 is provided with a guide wheel 222, and the two sides of the bottom of the frame 22 are provided with support wheels 223, the guide wheel 222 and the support wheels 223 are vertically arranged and are located at the end of the bottom of the frame 22 away from the hearth, facilitating maintenance and replacement, one of the cross beams 12 and the wear-resistant cover plate 13 are jointly provided with a guide wheel track 17 and two support wheel tracks 18, and the guide wheel 222 and the support wheels 223 are located in the guide wheel track 17 and the support wheel track 18 respectively, and the part of the structure can guide the movement of the frame 22 and improve the stability of the device during operation.

[0050] Further, please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 11 The top of the frame unit is jointly and fixedly provided with a sealing cover 111, the sealing cover 111 is connected with the top of the support 11, one side of the sealing cover 111 is sealingly and fixedly connected with the side wall of the chute rear wall 31, and the other side of the sealing cover 111 is fixed with the cross beam 12 located at the top in the frame assembly, so as to seal the top of the pushing device, the head of the driving oil cylinder 21 penetrates through the side wall of the sealing cover 111 and is sealingly and fixedly connected with the sealing cover 111, the telescopic end of the driving oil cylinder 21 is located in the sealing cover 111, and the frame 22 is located below the sealing cover 111, in addition, a plurality of sealing doors 1111 are arranged on the sealing cover 111 and correspond to the frame assembly, the sealing doors 1111 are normally in a closed state, and can be opened when the guide wheel 222, the support wheel 223 and the sliding shoe 221 need to be regularly maintained and replaced.

[0051] The specific working principle of the present application 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 is extended to push the frame 22 to move, so that the pushing head 23 and the sliding shoe 221 push the garbage to move towards the hearth, in the process, part of the leachate generated by the garbage can enter the second chamber 132 through the leaching hole 1321, and then enter the hopper body 41 through the discharge port 1322 under the guiding action of the flow guide plate 1323, the separation of the leachate and the garbage can reduce the water 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 snakelike track 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 the low-temperature environment of the pushing device platform, avoid the spontaneous combustion of the garbage thereon, and prolong the service life of the pushing device;

[0054] Meanwhile, the cooling water in the water tank 34 can enter the water-cooled chute through the water pipe 37. Under the communication of the connecting pipe 36, the cooling water is distributed inside the water-walled structure of the water-cooled chute. The cooling water absorbs heat and evaporates to be discharged from the steam outlet 35, so as to reduce the temperature in the chute, and further avoid spontaneous combustion of the garbage in the chute.

[0055] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A waste incineration pushing device, characterized by, Frame unit, pushing unit, water-cooled chute and several percolate buckets are included. The frame unit is composed of several frame assemblies arranged in a linear array, the frame assembly includes two supports (11) and several cross beams (12) which are fixed together between the two supports (11), and a wear-resistant cover plate (13) is fixed together at a position close to the hearth between the two supports (11), and the wear-resistant cover plate (13) is located inside the water-cooled chute. The pushing unit is composed of several pushing assemblies for pushing the garbage falling from the feeding port into the hearth. The percolate bucket is arranged in the frame assembly for filtering percolate in the garbage, the percolate bucket includes a bucket body (41), an access door (42) and a percolate discharge port (43), the bucket body (41) is fixed between the two supports (11), the access door (42) is arranged on the side wall of the bucket body (41), the percolate discharge port (43) is arranged in communication at the bottom of the bucket body (41), a second chamber (132) is arranged in 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 hearth, a plurality of drainage holes (1321) are arranged on the inner top surface of the second chamber (132), a discharge port (1322) is arranged on the inner side of the second chamber (132) and located above the bucket body (41), and a flow guide plate (1323) is fixed on the inner side of the second chamber (132), the flow guide plate (1323) is used for guiding the percolate to the discharge port (1322). 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-jacketed structures, the chute rear wall (31), the chute side walls (32) and the chute front wall (33) are connected in communication through a plurality 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 in communication with the inner lower section of one of the chute side walls (32) through a water pipe (37), and the top of the chute rear wall (31), the chute side walls (32) and the chute front wall (33) is provided with a plurality of steam outlets (35). A fire-fighting assembly is arranged on the water-cooled chute, the fire-fighting assembly includes a fire-fighting pipe (311) installed on the chute rear wall (31). One of the chute side walls (32) is provided with a blowdown pipe (321) at the bottom end.

2. The waste incineration pushing device according to claim 1, characterized in that, The wear-resistant cover plate (13) is internally provided with a first chamber (131), the two inner sides of the first chamber (131) are respectively provided with a cooling water inlet (1311) and a cooling water outlet (1312), the inside of the first chamber (131) is fixedly provided with a partition plate (1313), each partition plate (1313) has a gap with the inner side of the first chamber (131), and all the partition plates (1313) and the first chamber (131) jointly form a water flow channel, which limits the water flow to flow along a serpentine trajectory.

3. A waste incineration pushing device according to claim 2, characterized in that The pushing assembly comprises a driving oil cylinder (21), a frame (22) and a plurality of pushing heads (23), one of the cross beams (12) is fixedly provided with an oil cylinder support frame (14), the driving oil cylinder (21) is fixed to the frame assembly through the oil cylinder support frame (14), the output shaft end of the driving oil cylinder (21) is fixed to the frame (22), the frame (22) is slidingly installed on the frame assembly, the pushing head (23) is fixed to the end of the frame (22) close to the hearth, and the top of the pushing head (23) is slidingly connected with the bottom of the chute rear wall (31).

4. A waste incineration pushing device according to claim 3, characterized in that The fire-fighting pipeline (311) is provided with an electromagnetic valve one (3111), a plurality of nozzles (3112) are communicated on the fire-fighting pipeline (311) and extend into the water-cooled chute, and the inside of the chute rear wall (31) is further provided with a temperature sensor (312), which is used to control the opening and closing of the electromagnetic valve one (3111) and automatically opens the electromagnetic valve one (3111) when the temperature sensor (312) detects that the cooling water temperature in the water-jacked wall exceeds 60℃.

5. A waste incineration pushing device according to claim 4, characterized in that The drain pipe (321) is provided with an electromagnetic valve two (3211), a water changing pipe (322) is communicated at the top of the chute side wall (32), the water changing pipe (322) is provided with an electromagnetic valve three (3221), and the temperature sensor (312) is further used to control the opening and closing of the electromagnetic valve two (3211) and the electromagnetic valve three (3221), and when the temperature sensor (312) measures that the cooling water temperature in the water-jacked wall exceeds 70℃, the electromagnetic valve two (3211) is opened first, and then the electromagnetic valve three (3221) is opened.

6. A waste incineration pushing device according to claim 5, characterized in that The bucket body (41) is provided with a spraying pipeline (411), the spraying pipeline (411) is provided with a spraying water inlet pipe (4111), the spraying water inlet pipe (4111) is provided with an electromagnetic valve four (41111), and a plurality of spray heads (4112) are communicated on the spraying pipeline (411) and extend into the inside of the bucket body (41).

7. A waste incineration pushing device according to claim 6, characterized in that The frame (22) is fixedly provided with a plurality of sliding shoes (221) below the end close to the hearth, the bottom of the sliding shoe (221) is slidingly connected with the top of the wear-resistant cover plate (13), the sliding shoe (221) at the middle position of the frame (22) is provided with a guide opening (2211), the wear-resistant cover plate (13) is fixedly provided with a guide rail (133), and the guide opening (2211) and the guide rail (133) are embedded with each other.

8. A waste incineration pushing device according to claim 7, characterized in that The chute rear wall (31) bottom is provided with a plurality of arranged in a row of scraper shoes (313), the scraper shoe (313) bottom and the top of the pusher head (23) are slidably connected.

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