High-temperature magnetization pyrolyzing furnace for household garbage treatment

Abstract

The utility model provides a high-temperature magnetization pyrolyzing furnace for household garbage treatment, which relates to the field of household garbage treatment and comprises a furnace body assembly and a furnace bottom transmission device, the furnace bottom transmission device is mounted on a fourth mounting surface of the furnace body assembly, and the furnace body assembly comprises an upper furnace body assembly, a lower furnace body assembly and a furnace bottom assembly. The first mounting end and the second mounting end of the lower furnace body assembly are connected with the second mounting end of the upper furnace body assembly and the first mounting end of the furnace bottom assembly respectively, the furnace bottom assembly comprises a furnace base shell assembly, a rotary fire grate assembly, a slag scraping device and a central pipe, and the rotary fire grate assembly is connected with a furnace base shell. By means of the special structural design of the rotary fire grate assembly, magnetic combustion-supporting air is sprayed out in a rotary mode, the coking phenomenon in the pyrolysis process is reduced, slag in the pyrolysis process is immediately cleaned through the slag scraping device, the magnetic combustion-supporting air is preheated through the hollow structure of the furnace base shell, and the temperature of the furnace bottom assembly is reduced.

Description

Technical Field

[0001] The utility model relates to the field of domestic waste treatment, in particular to a high-temperature magnetization pyrolysis furnace for domestic waste treatment. Background Art

[0002] Domestic waste treatment is mainly divided into three categories: landfill, incineration and biological treatment. Landfill is widely used because of its simple operation, but the leachate and gas produced during the landfill process pose a potential threat to the environment and human health. Incineration converts waste into ash and heat energy through high-temperature incineration, but harmful substances such as dioxins produced during the incineration process should not be ignored. Biological treatment uses microorganisms to decompose organic components in waste. Although it is more environmentally friendly, the treatment cycle is longer and the requirements for waste composition are higher.

[0003] At present, incineration is more commonly used for domestic waste treatment. Incineration is to place the waste in an incinerator for pyrolysis to release heat energy, and the waste heat can be recovered for heating or power generation. The flue gas is discharged after purification, and a small amount of remaining residue is discharged to landfill or used for other purposes. Small volumes of waste are directly incinerated, and large volumes are concentrated for incineration and power generation. How to improve the efficiency of harmless treatment through the improvement of domestic waste treatment equipment has always been a research direction. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a high-temperature magnetized pyrolysis furnace for treating domestic waste, in which the first magnetized combustion-supporting air is preheated through a rotating grate base and blown out in a rotational manner, so that the air and domestic waste are fully magnetized. By designing the rotating grate structure, the coking phenomenon of domestic waste during the pyrolysis process is reduced, thereby improving the efficiency of high-temperature harmless treatment.

[0005] The utility model provides a high-temperature magnetized pyrolysis furnace for treating domestic waste, which comprises a furnace body assembly and a furnace bottom transmission device, the furnace body assembly comprises an upper furnace body assembly, a lower furnace body assembly and a furnace bottom assembly, the furnace bottom transmission device is installed on the fourth installation surface of the furnace body assembly, the furnace bottom assembly comprises a furnace base shell assembly, a rotating grate assembly, a slag scraping device and a central tube, the rotating grate assembly is connected to the furnace base shell assembly, the furnace base shell assembly comprises a furnace base shell, a supporting roller and a bottom plate, the rotating grate assembly comprises a perforated ash pan, a first hood, a second hood, a third hood and a fourth hood, the first installation surface of the perforated ash pan is a circular plane with a plurality of waist-shaped holes uniformly distributed along the radial direction, the second installation surface of the perforated ash pan is a bevel gear, the second end of the central tube is connected to the furnace base shell through a pipeline, the scraping device is connected to the rotating grate assembly around the central tube, the scraping device comprises a first scraper, a second scraper, a third scraper and a rotating shaft, The first scraper, the second scraper and the third scraper are evenly distributed at the second end of the rotating shaft along the radial direction; the lower furnace body assembly includes a lower furnace body shell and an ignition burner, and the ignition burner is installed on the fourth mounting surface of the lower furnace body shell; the upper furnace body assembly includes an upper furnace body shell, a furnace top, a smoke outlet, a feed slide and a hydraulic pushing device, the furnace top and the smoke outlet are respectively installed on the first mounting end and the second mounting surface of the upper furnace body shell, and the feed slide and the hydraulic pushing device are installed on the fourth mounting surface of the upper furnace body shell; the furnace bottom transmission device includes a fan assembly, a hydraulic pump station, a furnace bottom transmission assembly and a slag discharger, the fan assembly includes a first fan and a second fan, the first fan and the second fan are respectively connected to the lower furnace body assembly and the upper furnace body assembly, the hydraulic pump station is connected to the hydraulic pushing device through an oil pipe, the first mounting end of the furnace bottom transmission assembly is connected to the rotating grate assembly, and the slag discharger is connected to the slag scraping device. Optionally, the second mounting end of the upper furnace body assembly is connected to the first mounting end of the lower furnace body assembly, and the second mounting end of the lower furnace body assembly is connected to the first mounting end of the furnace bottom assembly.

[0006] Preferably, the second mounting end of the upper furnace body assembly is connected to the first mounting end of the lower furnace body assembly, and the second mounting end of the lower furnace body assembly is connected to the first mounting end of the furnace bottom assembly.

[0007] Preferably, the first hood, the second hood, the third hood and the fourth hood are petal-shaped in a counterclockwise direction and their volumes decrease successively.

[0008] Preferably, the furnace base shell is a hollow cavity structure with a square outside and a circular inside, the rollers are evenly distributed on the inner wall of the furnace base shell along the circumferential direction, and the bottom plate is provided with a square slag outlet.

[0009] Preferably, the first hood, the second hood, the third hood and the fourth hood have the same structure, and their volumes decrease successively.

[0010] Preferably, the second mounting surface of the first wind hood is connected to the first mounting surface of the perforated ash tray, the second mounting surface of the second wind hood is connected to the first mounting surface of the first wind hood, the second mounting surface of the third wind hood is connected to the first mounting surface of the second wind hood, and the second mounting surface of the fourth wind hood is connected to the first mounting surface of the third wind hood.

[0011] Preferably, the first installation surface and the third installation surface of the lower furnace body shell are provided with a first furnace door and a second furnace door.

[0012] Preferably, the first fan is connected to the fourth mounting surface of the furnace bottom assembly via a first wind magnetization duct, and the second fan is connected to the air inlet via a second wind magnetization duct.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The rotary grate assembly of the utility model rotates the first wind cap, the second wind cap, the third wind cap and the fourth wind cap to rotate and blow out the first magnetized combustion-supporting wind stored in the hollow part of the shell of the furnace bottom base so that the domestic garbage entering the lower furnace body assembly is fully magnetized;

[0015] 2. The first wind hood, the second wind hood, the third wind hood and the fourth wind hood of the rotary grate assembly of the utility model are designed in a petal-shaped manner with successively decreasing volumes, so that the rotary grate collides with the coke generated during the pyrolysis of domestic waste during operation, thereby breaking up the coked domestic waste, improving the magnetization efficiency and the pyrolysis efficiency, and making the pyrolysis of domestic waste more complete.

[0016] 3. The scraping device of the utility model can instantly move solid products such as slag produced after pyrolysis of domestic waste into the slag discharger through the slag outlet through the rotation of the first scraping blade, the second scraping blade and the third scraping blade, thereby effectively reducing the accumulation of slag.

[0017] 4. The utility model preheats the first magnetized combustion-supporting air through the hollow cavity of the furnace base shell. The preheated first magnetized combustion-supporting air can effectively improve the pyrolysis efficiency of domestic waste. At the same time, the first magnetized combustion-supporting air continuously entering the furnace base shell can effectively reduce the temperature of the furnace bottom assembly and reduce equipment losses.

[0018] 5. The utility model uses two magnetization actions to fully pyrolyze the domestic garbage inside the utility model, reducing the inert gas mainly composed of nitrogen entering the furnace to react with the domestic garbage, thereby indirectly reducing the generation of various pollutants. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the high-temperature magnetization pyrolysis furnace for treating domestic waste according to the utility model;

[0020] Figure 2 It is a side view of the high-temperature magnetization pyrolysis furnace for treating domestic waste according to the utility model;

[0021] Figure 3 It is a top view of the high-temperature magnetization pyrolysis furnace for treating domestic waste according to the utility model;

[0022] Figure 4 It is a vertical cross-sectional view of the high-temperature magnetization pyrolysis furnace for treating domestic waste according to the utility model;

[0023] Figure 5 It is a top view of the shell assembly of the furnace base of the high-temperature magnetization pyrolysis furnace for domestic waste treatment of the utility model;

[0024] Figure 6a and Figure 6b A three-dimensional diagram of a rotating grate assembly of a high-temperature magnetized pyrolysis furnace for treating domestic waste according to the utility model;

[0025] Figure 7 This is an overall diagram of the slag scraping device of the high-temperature magnetization pyrolysis furnace for domestic waste treatment according to the utility model.

[0026] Main reference numerals:

[0027] Furnace body assembly 1, furnace bottom transmission device 2, fan assembly 21, first fan 211, first wind magnetization pipeline 213, second fan 212, second wind magnetization pipeline 214, hydraulic pump station 22, furnace bottom transmission assembly 23, slag discharger 24, furnace bottom assembly 3, furnace base shell assembly 31, furnace base shell 311, roller 312, bottom plate 313, rotating grate assembly 32, first wind hood 321, second wind hood 322, third wind hood 3 23. a fourth hood 324. a perforated ash tray 325. a scraping device 33. a first scraping plate 331. a second scraping plate 332. a third scraping plate 333. a rotating shaft 334. a central tube 34. a furnace body assembly 4. an upper furnace body assembly 5. an upper furnace body shell 51. a furnace top 52. a smoke outlet 53. an air inlet 54. a hydraulic pushing mechanism 55. a feeding chute 56. a lower furnace body assembly 6. a lower furnace body shell 61. a furnace door 62. and an ignition burner 63. DETAILED DESCRIPTION

[0028] The exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0029] The utility model provides a high-temperature magnetization pyrolysis furnace for treating domestic garbage, which comprises a furnace body component and a furnace bottom transmission device. The furnace bottom transmission device is installed on the fourth installation surface of the furnace body component as a power system.

[0030] The high temperature referred to in this embodiment is that the furnace temperature in the furnace body assembly is above 650°.

[0031] like Figure 1-3 As shown, the furnace body assembly includes an upper furnace body assembly 5, a lower furnace body assembly 6 and a furnace bottom assembly 3, the first mounting end of the lower furnace body assembly 6 is connected to the second mounting end of the upper furnace body assembly 5, and the second mounting end of the lower furnace body assembly 6 is connected to the first mounting end of the furnace bottom assembly 3.

[0032] like Figure 1 and 4 As shown, the upper furnace body assembly 5 includes an upper furnace body shell 51, a furnace top 52, a smoke outlet 53, an air inlet 54, a hydraulic pushing mechanism 55 and a feeding slide 56. The upper furnace body shell 51 has a three-layer structure from the outside to the inside. The first layer is a steel structure shell, the second layer is a thermal insulation layer, and the third layer is a refractory layer. The refractory layer can effectively ensure the stable operation of the utility model in a high-temperature pyrolysis environment. The second mounting surface of the furnace top 52 is connected to the first mounting surface of the upper furnace body shell 51, and the smoke outlet 53 is installed on the second mounting surface of the upper furnace body shell 51. The harmless gas generated after the pyrolysis of domestic garbage is discharged through the smoke outlet 53. The feeding slide 56 is installed on the first end of the hydraulic pushing mechanism 55. The hydraulic pushing mechanism 55 is connected to the hydraulic pump station 22 through an oil pipe. The air inlet holes 54 are all distributed on the four mounting surfaces of the upper furnace body shell 51. By connecting with the second wind magnetization pipeline 214, the magnetized wind in the upper furnace body assembly is increased to fully pyrolyze the domestic garbage and reduce the generation of harmful gases. The lower furnace body assembly 6 includes a lower furnace body shell 61, a furnace door 62 and an ignition burner 63. The structure of the lower furnace body shell 61 is the same as that of the upper furnace body shell 51. The first mounting surface and the third mounting surface of the lower furnace body shell are equipped with a furnace door 62, which can facilitate cleaning of the rotating grate assembly 32. The ignition burner 63 serving as an ignition device is installed on the fourth mounting surface of the lower furnace body shell 61.

[0033] The furnace bottom transmission device 2 includes a fan assembly 21, a hydraulic pump station 22, a furnace bottom transmission assembly 23 and a slag discharger 24. The fan assembly includes a first fan 211, a first wind magnetization pipeline 213, a second fan 212 and a second wind magnetization pipeline 214. The first fan 211 is connected to the fourth mounting surface of the furnace bottom assembly 3 through the first wind magnetization pipeline 213 to transport the magnetized wind to the hollow cavity of the furnace base shell. The second fan 213 is connected to the air inlet holes 54 of the four mounting surfaces of the upper furnace body shell through the second wind magnetization pipeline 214 to supplement the concentration of the magnetic combustion-supporting wind reduced due to pyrolysis.

[0034] like Figure 4 and Figure 5 As shown, the furnace bottom assembly 3 includes a furnace base shell assembly 31, a rotating grate assembly 32, a slag scraper 33 and a central tube 34. The furnace base shell assembly 31 includes a furnace base shell 311, rollers 312 and a bottom plate 313. The furnace base shell 311 is a hollow cavity sealing structure with an outer square and an inner circle, which can preheat the first magnetized combustion-supporting air transported by the first wind magnetization pipeline. At the same time, the first magnetized combustion-supporting air continuously entering the furnace base shell can effectively reduce the temperature of the furnace bottom assembly. The inner wall of the furnace base shell 311 is provided with four rollers 312 evenly distributed in the circumferential direction, and the rollers are used to support the rotating furnace. The row 32 serves as a limit for the rotating grate assembly 32 to determine the installation position of the rotating grate. A square slag outlet is set at the edge of the bottom plate. The central tube 34 is located at the center of the furnace base shell 311 and is hollow inside. The first end of the central tube is connected to the rotating grate assembly, and the second end of the central tube is connected to the hollow cavity of the furnace base shell 311 through a circular tube. The central tube 34 transfers the first magnetized combustion-supporting air in the hollow cavity of the furnace base shell to the rotating grate assembly 32 and rotates it out. The rotating sprayed first magnetized combustion-supporting air is in full contact with the domestic waste, thereby improving the pyrolysis efficiency. The rotating grate assembly 32 includes a first hood 321, a second hood 322, a third hood 323, a fourth hood 324 and an ash pan 325 with holes. The second mounting surface of the first hood 321 is connected to the first mounting surface of the ash pan 325 with holes, the second mounting surface of the second hood 322 is connected to the first mounting surface of the first hood 321, the second mounting surface of the third hood 323 is connected to the first mounting surface of the second hood 322, and the second mounting surface of the fourth hood 324 is connected to the first mounting surface of the third hood 323. The second mounting surface of the ash pan 325 with holes is connected to the furnace bottom transmission assembly 23 by an umbrella gear. The rotating grate assembly drives the rotation of the ash pan 325 with holes through the operation of the motor reducer of the furnace bottom transmission assembly, thereby realizing the operation of the rotating grate assembly. The scraping device 33 includes a first scraping plate 331, a second scraping plate 332, a third scraping plate 333 and a rotating shaft 334. The scraping device 33 is connected to the rotating grate assembly around the central tube 34.

[0035] like Figure 6a and Figure 6bAs shown, the rotating grate assembly 32 is a multi-layer tower-like structure as a whole, the first mounting surface of the perforated ash tray 325 is a circular plane with a plurality of waist-shaped holes evenly distributed along the radial direction, the first wind hood 321, the second wind hood 322, the third wind hood 323 and the fourth wind hood 324 have petal-shaped structures and their volumes decrease successively, and the multi-layer tower-like structure of the rotating grate assembly 32 is beneficial to the rotating ejection of the magnetic combustion-supporting wind inside the central tube, thereby increasing the contact area with the domestic waste to be magnetized, and the petal-shaped structures of the first wind hood 321, the second wind hood 322, the third wind hood 323 and the fourth wind hood 324 are relatively sharp, and the coke generated by the pyrolysis of the domestic waste can be effectively broken up by rotation, thereby increasing the magnetized specific surface area.

[0036] like Figure 7 As shown, the scraper device 33 is directly connected to the rotating grate assembly 32. The operation of the rotating grate assembly 32 drives the rotating shaft 334, the first scraper plate, the second scraper plate and the third scraper plate to rotate together, and the slag generated during the pyrolysis of domestic waste is transferred to the slag discharger 24 through the slag outlet. The scraper device can effectively reduce the accumulation of slag and improve convenience.

[0037] The utility model can enhance the magnetization effect by magnetizing the domestic waste twice, reduce the inert gas mainly composed of nitrogen entering the device to react with the domestic waste, and thus indirectly reduce the generation of pollutants; the rotating grate assembly of the utility model can effectively reduce the phenomenon of large coke blocks generated during pyrolysis through special structural design, and the magnetic combustion-supporting air ejected by the rotating grate assembly effectively increases the contact area with the domestic waste to be pyrolyzed, thereby improving the pyrolysis efficiency; the slag scraping device can effectively remove the slag generated during the pyrolysis process, and improves the convenience of operation; the inner circle and outer square hollow cavity of the furnace base shell can preheat the first magnetized combustion-supporting air. In addition, the continuous first magnetized combustion-supporting air can effectively reduce the temperature of the furnace bottom assembly and reduce equipment loss.

[0038] The embodiments described above are only descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A high-temperature magnetization pyrolysis furnace for treating domestic waste, comprising a furnace body assembly and a furnace bottom transmission device, wherein the furnace body assembly comprises an upper furnace body assembly, a lower furnace body assembly and a furnace bottom assembly, and the furnace bottom transmission device is installed on the fourth installation surface of the furnace body assembly, characterized in that: The furnace bottom assembly comprises a furnace base shell assembly, a rotating grate assembly, a slag scraper and a central tube, the rotating grate assembly is connected to the furnace base shell assembly, the furnace base shell assembly comprises a furnace base shell, a support roller and a bottom plate, the rotating grate assembly comprises a perforated ash pan, a first wind hood, a second wind hood, a third wind hood and a fourth wind hood, the first mounting surface of the perforated ash pan is a circular plane with a plurality of waist-shaped holes uniformly distributed along the radial direction, the second mounting surface of the perforated ash pan is a bevel gear, the second end of the central tube is connected to the furnace base shell through a pipeline, the scraper device is connected to the rotating grate assembly around the central tube, the scraper device comprises a first scraper, a second scraper, a third scraper and a rotating shaft, the first scraper, the second scraper and the third scraper are uniformly distributed along the radial direction at the second end of the rotating shaft; The lower furnace body assembly comprises a lower furnace body shell and an ignition burner, wherein the ignition burner is mounted on the fourth mounting surface of the lower furnace body shell; the upper furnace body assembly comprises an upper furnace body shell, a furnace top, a smoke outlet, a feed slide and a hydraulic push device, wherein the furnace top and the smoke outlet are respectively mounted on the first mounting end and the second mounting surface of the upper furnace body shell, and the feed slide and the hydraulic push device are mounted on the fourth mounting surface of the upper furnace body shell; The furnace bottom transmission device includes a fan assembly, a hydraulic pump station, a furnace bottom transmission assembly and a slag discharger. The fan assembly includes a first fan and a second fan. The first fan and the second fan are respectively connected to the lower furnace body assembly and the upper furnace body assembly. The hydraulic pump station is connected to the hydraulic pushing device through an oil pipe. The first mounting end of the furnace bottom transmission assembly is connected to the rotating grate assembly. The slag discharger is connected to the slag scraping device.

2. The high temperature magnetization pyrolysis furnace for domestic waste treatment according to claim 1, characterized in that: The second mounting end of the upper furnace body assembly is connected to the first mounting end of the lower furnace body assembly, and the second mounting end of the lower furnace body assembly is connected to the first mounting end of the furnace bottom assembly.

3. The high temperature magnetization pyrolysis furnace for domestic waste treatment according to claim 1, characterized in that: The furnace base shell is a hollow cavity structure with a square outside and a round inside. The rollers are evenly distributed on the inner wall of the furnace base shell along the circumferential direction. The bottom plate is provided with a square slag outlet.

4. The high temperature magnetization pyrolysis furnace for domestic waste treatment according to claim 1, characterized in that: The first hood, the second hood, the third hood and the fourth hood have the same structure, and their volumes decrease successively.

5. The high temperature magnetization pyrolysis furnace for domestic waste treatment according to claim 4, characterized in that: The second mounting surface of the first hood is connected to the first mounting surface of the ash tray with holes, the second mounting surface of the second hood is connected to the first mounting surface of the first hood, the second mounting surface of the third hood is connected to the first mounting surface of the second hood, and the second mounting surface of the fourth hood is connected to the first mounting surface of the third hood.

6. The high temperature magnetization pyrolysis furnace for domestic waste treatment according to claim 1, characterized in that: The first installation surface and the third installation surface of the lower furnace body shell are provided with a first furnace door and a second furnace door.

7. The high temperature magnetization pyrolysis furnace for domestic waste treatment according to claim 1, characterized in that: The first mounting surface, the second mounting surface, the third mounting surface and the fourth mounting surface of the upper furnace body shell are respectively provided with a plurality of air inlet holes at equal intervals.

8. The high temperature magnetization pyrolysis furnace for treating domestic waste according to claim 7, characterized in that: The first fan is connected to the fourth mounting surface of the furnace bottom assembly via a first wind magnetization pipeline, and the second fan is connected to the air inlet via a second wind magnetization pipeline.

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