Magnetic pulse low-temperature pyrolysis refuse mineralization treatment equipment

Abstract

The utility model discloses magnetic pulse low-temperature pyrolysis refuse mineralization treatment equipment which comprises a furnace body (1), a smoke outlet (2) is formed in the top of the furnace body (1), an air inlet pipe (3) is arranged on the lower portion of the furnace body (1), the air inlet end of the air inlet pipe (3) is communicated with a magnetic pulse oxygen-enriched combustion-supporting device (10), and an inclined spiral feeder (4) is arranged on one side of the furnace body (1). An outlet of the spiral feeder (4) extends into the furnace body (1) and is located at the top of the furnace body (1), the outlet of the spiral feeder (4) is rotationally connected with a turning plate (5), and a first sealing cover (6) is arranged at an inlet of the spiral feeder (4); a heat insulation plate (7) is arranged on the outer side of the furnace body (1), a closed cavity (8) is formed between the heat insulation plate (7) and the furnace body (1), a partition plate (9) is arranged in the cavity (8), and a flow channel is formed in the cavity (8). The garbage can has the advantages of being easy to supplement garbage and good in safety.

Description

Technical Field

[0001] The utility model belongs to the field of garbage treatment equipment. Background Art

[0002] Common treatment methods for domestic waste include landfill, high-temperature incineration, low-temperature pyrolysis, etc. A low-temperature pyrolysis furnace is the equipment required for low-temperature pyrolysis of garbage. During low-temperature pyrolysis, no open flame is generated, and the garbage is mainly pyrolyzed in a smoldering manner.

[0003] The structure of the existing low-temperature pyrolysis furnace includes a furnace body. A smoke exhaust port and a feeding port are provided at the top of the furnace body. A sealing cover is provided at the feeding port. An air inlet pipe is provided at the bottom of the furnace, and the air inlet end of the air inlet pipe is located outside the furnace body. Garbage enters the furnace body through the feeding port, forms a pile in the furnace body, and forms three regions from top to bottom, namely an evaporation and vaporization region, a carbonization region, and a pyrolysis region. The air outlet end of the air inlet pipe is located in the pyrolysis region. The garbage is pyrolyzed in the pyrolysis region, and heat is released during pyrolysis. The air inlet pipe provides oxygen for the pyrolysis reaction. The heat rises, causing the garbage in the carbonization region to be carbonized. The heat continues to rise, causing the garbage in the evaporation and vaporization region to be dried. The waste gas generated by pyrolysis and evaporation is discharged from the smoke exhaust port, and an upward suction force is formed, causing air to be supplemented into the furnace body through the air inlet pipe to maintain the balance of air intake and exhaust.

[0004] When supplementing garbage to the existing low-temperature pyrolysis furnace, it is necessary to add materials through the feeding port at the top of the furnace body. However, the height of the furnace body is relatively large, generally more than two meters, resulting in difficult feeding operations. Moreover, personnel need to work at heights, posing certain safety hazards.

[0005] Therefore, the existing low-temperature pyrolysis furnace has the defects of difficult garbage supplementation and certain safety hazards. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a magnetic pulse low-temperature pyrolysis garbage mineralization treatment device. The utility model has the advantages of easy garbage supplementation and good safety.

[0007] The technical solution of the utility model: A magnetic pulse low-temperature pyrolysis garbage mineralization treatment device includes a furnace body. A smoke exhaust port is provided at the top of the furnace body. An air inlet pipe is provided at the lower part of the furnace body. The air inlet end of the air inlet pipe is connected to a magnetic pulse oxygen-enriched combustion assisting device. An inclined screw feeder is provided on one side of the furnace body. The outlet of the screw feeder extends into the furnace body and is located at the top of the furnace body. A flap is rotatably connected at the outlet of the screw feeder. A first sealing cover is provided at the inlet of the screw feeder.

[0008] In the aforementioned magnetic pulse low-temperature pyrolysis garbage mineralization treatment device, a heat insulation board is provided outside the furnace body. A closed cavity is formed between the heat insulation board and the furnace body. A partition is provided in the cavity to form a flow channel in the cavity. The air inlet pipe is connected to the magnetic pulse oxygen-enriched combustion assisting device through the flow channel.

[0009] In the aforementioned magneto-pulse low-temperature pyrolysis garbage mineralization treatment device, there are multiple intake pipes, which are evenly distributed circumferentially, and the intake pipes are arranged obliquely.

[0010] In the aforementioned magneto-pulse low-temperature pyrolysis garbage mineralization treatment device, a maintenance opening with a diameter greater than 50 cm is provided at the top of the furnace body, and a second sealing cover is provided on the maintenance opening.

[0011] In the aforementioned magneto-pulse low-temperature pyrolysis garbage mineralization treatment device, a coking observation opening with a diameter of 5-15 cm is provided at the top of the furnace body, and a third sealing cover is provided on the coking observation opening.

[0012] In the aforementioned magneto-pulse low-temperature pyrolysis garbage mineralization treatment device, a leveling observation opening is provided in the upper part of the furnace body, a fourth sealing cover is provided on the leveling observation opening, and the leveling observation opening is located above the heat insulation board.

[0013] In the aforementioned magneto-pulse low-temperature pyrolysis garbage mineralization treatment device, there are two leveling observation openings, which are respectively located on both sides of the screw feeder.

[0014] In the aforementioned magneto-pulse low-temperature pyrolysis garbage mineralization treatment device, a smoke outlet pipe communicating with the smoke exhaust port is provided at the top of the furnace body 1. A first gas pipe and a plurality of second gas pipes are provided in the smoke outlet pipe. The first gas pipe is coaxial with the smoke outlet pipe, and the second gas pipes are annularly distributed around the first gas pipe. The top of the second gas pipe communicates with the first gas pipe. The lower end of the first gas pipe extends horizontally to the outside of the smoke outlet pipe. An annular waste accumulation groove is provided on the smoke outlet pipe below the second gas pipe, and a waste discharge pipe is connected to one side of the waste accumulation groove.

[0015] In the aforementioned magneto-pulse low-temperature pyrolysis garbage mineralization treatment device, a heat exchange cavity is formed in the smoke outlet pipe around the first gas pipe and the second gas pipes. A water inlet pipe and a water outlet pipe are respectively provided on both sides of the heat exchange cavity. The water inlet pipe and the water outlet pipe exchange heat with the waste gas in the first gas pipe and the second gas pipes by filling cooling water in the heat exchange cavity, so as to realize the function of cooling the waste gas.

[0016] Compared with the prior art, the utility model adds an inclined screw feeder outside the furnace body, and conveys garbage into the furnace body through the screw feeder, so that workers can feed materials at a lower position, it is easier to supplement garbage, and there is no need for high-altitude operation, eliminating potential safety hazards and having better safety. Therefore, the utility model has the advantages of being easier to supplement garbage and having better safety.

[0017] By setting a flap at the discharge end of the screw feeder, the amount of waste gas entering the screw feeder from the furnace body is reduced, preventing a large amount of tar in the waste gas from adhering to the inside of the screw feeder and increasing the service life of the screw feeder. A sealing cover is provided at the feeding end of the screw feeder. When the screw feeder is not working, air is prevented from entering the furnace body from the screw feeder, so that the negative pressure generated by the gas discharged from the smoke outlet acts on the intake pipe, and the furnace body air flow is from the intake pipe to the smoke outlet, ensuring the smooth progress of the pyrolysis reaction in the furnace.

[0018] By setting a heat insulation board on the outside of the furnace body, workers are prevented from being scalded by the furnace body, further improving safety. By passing air through the cavity between the heat insulation board and the furnace body and then entering the furnace body, the waste heat of the furnace body is utilized to bring the heat back into the furnace body, which helps to maintain a relatively high temperature in the furnace and improve the pyrolysis efficiency.

[0019] By setting a smoke outlet pipe and a gas pipe at the smoke outlet, the discharged waste gas is cooled, so that the tar and water vapor in the waste gas are cooled and condensed, reducing the harmful substances in the waste gas and improving the subsequent treatment efficiency of the waste gas. Brief Description of the Drawings

[0020] Figure 1 is the front view schematic diagram of the present utility model.

[0021] Figure 2 is the left view schematic diagram of the present utility model.

[0022] Figure 3 is the top view schematic diagram of the present utility model.

[0023] Figure 4 is the structural schematic diagram of the present utility model at the smoke outlet.

[0024] The reference numerals in the drawings are: 1 - furnace body, 2 - smoke outlet, 3 - intake pipe, 4 - screw feeder, 5 - flap, 6 - first sealing cover, 7 - heat insulation board, 8 - cavity, 9 - partition board, 10 - magnetic pulse oxygen-enriched combustion assisting device, 11 - inspection port, 12 - second sealing cover, 13 - coking observation port, 14 - third sealing cover, 15 - leveling observation port, 16 - fourth sealing cover, 22 - smoke outlet pipe, 23 - first gas pipe, 24 - second gas pipe, 25 - waste accumulation tank. Detailed Description of the Preferred Embodiment

[0025] The present utility model will be further described below in conjunction with the drawings and embodiments, but it shall not be used as a basis for limiting the present utility model.

[0026] Embodiment. The magnetic pulse low-temperature pyrolysis garbage mineralization treatment equipment, as Figure 1 shown, includes a furnace body 1, a smoke outlet 2 is provided at the top of the furnace body 1, an intake pipe 3 is provided at the lower part of the furnace body 1, and an ash discharge door is provided at the bottom of the furnace body 1. The features are as follows:

[0027] On one side of the furnace body 1, there is an inclined screw feeder 4. The outlet of the screw feeder 4 extends into the furnace body 1 and is located at the top of the furnace body 1. A flap 5 is rotatably connected to the outlet of the screw feeder 4 through a spring hinge, and a first sealing cover 6 is provided at the inlet of the screw feeder 4.

[0028] An insulating board 7 is provided outside the furnace body 1. A closed cavity 8 is formed between the insulating board 7 and the furnace body 1. A partition board 9 is provided in the cavity 8 to form a flow channel in the cavity 8. One end of the flow channel is communicated with the intake end of the intake pipe 3, and the other end of the flow channel is connected with a magnetic pulse oxygen-enriched combustion assisting device 10.

[0029] There are multiple intake pipes 3, and the multiple intake pipes 3 are circumferentially and evenly distributed. The intake pipes 3 are inclined, which is convenient for the materials on the intake pipes 3 to slide down.

[0030] An inspection opening 11 with a diameter greater than 50 cm is provided at the top of the furnace body 1, and a second sealing cover 12 is provided on the inspection opening 11. When the second sealing cover 12 is opened, workers can enter the furnace body through the inspection opening 11 for inspection.

[0031] Two coking observation openings 13 with a diameter of 5 - 15 cm are provided at the top of the furnace body 1, and a third sealing cover 14 is provided on the coking observation openings 13. When the garbage inside the furnace body 1 cokes and is difficult to fall off, the third sealing cover 14 is opened, and the garbage can be poked down with tools, reducing the opening frequency of the second sealing cover 12.

[0032] Two leveling observation openings 15 are provided in the upper part of the furnace body 1. The two leveling observation openings 15 are respectively located on both sides of the screw feeder 4. A fourth sealing cover 16 is provided on the leveling observation openings 15, and the leveling observation openings 15 are located above the insulating board 7. When the garbage enters the furnace body 1 from the screw feeder 4, it forms a pile with a mountain peak shape at the top. After the fourth sealing cover 16 is opened, the garbage can be leveled, enabling the furnace body 1 to store more garbage, improving the volume utilization rate inside the furnace, and helping to maintain a good pyrolysis effect.

[0033] An exhaust pipe 22 communicating with the smoke exhaust port 2 is provided at the top of the furnace body 1. A first gas pipe 23 and multiple second gas pipes 24 are provided in the exhaust pipe 22. The first gas pipe 23 is coaxial with the exhaust pipe 22, and the second gas pipes 24 are annularly distributed around the first gas pipe 23. The tops of the second gas pipes 24 and the first gas pipe 23 are interconnected. The lower end of the first gas pipe 23 horizontally extends to the outside of the exhaust pipe 22. An annular waste accumulation groove 25 is provided on the exhaust pipe 22 below the second gas pipes 24, and one side of the waste accumulation groove 25 is connected with a waste discharge pipe.

[0034] A heat exchange chamber is formed in the smoke outlet pipe 22 around the first air duct 23 and the second air duct 24. A water inlet pipe and a water outlet pipe are respectively provided on both sides of the heat exchange chamber. The water inlet pipe and the water outlet pipe exchange heat with the exhaust gas in the first air duct 23 and the second air duct 24 by filling cooling water into the heat exchange chamber, thereby realizing the function of cooling the exhaust gas.

[0035] Working principle: open the first sealing cover 6, and the garbage enters the furnace body 1 from the screw feeder 4 until the garbage is accumulated to a high level, then open the fourth sealing cover 16, and push part of the garbage to the far end of the discharge end of the screw feeder 4, and continue to transport part of the garbage into the furnace body 1, and finally level the top of the garbage, and close the fourth sealing cover and the first sealing cover 6.

[0036] The furnace body 1 can be divided into an evaporation zone, a carbonization zone and a pyrolysis zone from top to bottom. The garbage is pyrolyzed in the pyrolysis zone, turned into ash, and its volume is reduced, and the garbage above it falls. During pyrolysis, the magnetic pulse oxygen-enriched combustion device 10 generates air with a high oxygen content. The air enters the furnace body 1 after entering the cavity 8 and the waste heat, providing oxygen for heat removal and increasing the pyrolysis efficiency. The heat released by pyrolysis carbonizes the garbage in the carbonization zone and vaporizes the moisture in the garbage in the evaporation zone to dry it.

[0037] The waste gas generated in the furnace body is discharged outward through the second air duct 24 and the first air duct 23 in sequence. The water vapor and tar in the waste gas can be cooled down and condensed during the air ducting process and adhere to the inner wall of the second air duct 24. Then, after accumulating to a certain extent, the oil liquid is formed and flows downward, and then falls into the waste storage tank 25 below. The manufacturer can regularly extract the oil liquid in the waste storage tank 25, thereby realizing the cooling and purification of the waste gas before discharge, and improving the waste gas treatment efficiency of the subsequent device.

[0038] The magnetic pulse oxygen-enriched combustion-aiding device 10 enriches oxygen in the air. The power for the oxygen-enriched air to enter the furnace body 1 comes from the suction force generated by exhaust gas discharged from the smoke exhaust port 2. It is necessary to prevent air from entering from the screw feeder 4.

[0039] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

Claims

1. A magnetic pulse low-temperature pyrolysis garbage mineralization treatment device, comprising a furnace body (1), a smoke exhaust port (2) is provided at the top of the furnace body (1), an air intake pipe (3) is provided at the bottom of the furnace body (1), and an air intake end of the air intake pipe (3) is connected to a magnetic pulse oxygen-enriched combustion device (10), characterized in that: An inclined screw feeder (4) is provided on one side of the furnace body (1); an outlet of the screw feeder (4) extends into the furnace body (1) and is located at the top of the furnace body (1); a flap (5) is rotatably connected to the outlet of the screw feeder (4); and a first sealing cover (6) is provided at the inlet of the screw feeder (4).

2. The magnetic pulse low-temperature pyrolysis garbage mineralization processing equipment according to claim 1 is characterized in that: A heat insulation board (7) is provided on the outside of the furnace body (1), a closed cavity (8) is formed between the heat insulation board (7) and the furnace body (1), a partition board (9) is provided in the cavity (8), so that a flow channel is formed in the cavity (8), and the air inlet pipe (3) is connected to the magnetic pulse oxygen-enriched combustion-aiding device (10) through the flow channel.

3. The magnetic pulse low-temperature pyrolysis garbage mineralization processing equipment according to claim 2 is characterized in that: There are a plurality of air intake pipes (3), the plurality of air intake pipes (3) are evenly distributed in the circumferential direction, and the air intake pipes (3) are arranged at an angle.

4. The magnetic pulse low-temperature pyrolysis garbage mineralization processing equipment according to claim 1 is characterized in that: The top of the furnace body (1) is provided with an inspection opening (11) with a diameter greater than 50 cm, and a second sealing cover (12) is provided on the inspection opening (11).

5. The magnetic pulse low-temperature pyrolysis garbage mineralization processing equipment according to claim 1 is characterized in that: The top of the furnace body (1) is provided with a coking observation port (13) with a diameter of 5-15 cm, and a third sealing cover (14) is provided on the coking observation port (13).

6. The magnetic pulse low-temperature pyrolysis garbage mineralization processing equipment according to claim 2 is characterized in that: A leveling observation port (15) is provided on the upper part of the furnace body (1), a fourth sealing cover (16) is provided on the leveling observation port (15), and the leveling observation port (15) is located above the heat insulation board (7).

7. The magnetic pulse low-temperature pyrolysis garbage mineralization processing equipment according to claim 6 is characterized in that: There are two leveling observation ports (15), and the two leveling observation ports (15) are respectively located on both sides of the screw feeder (4).

8. The magnetic pulse low-temperature pyrolysis garbage mineralization processing equipment according to claim 1 is characterized by: A smoke outlet pipe (22) connected to the smoke outlet (2) is provided at the top of the furnace body (1); a first air duct (23) and a plurality of second air ducts (24) are provided in the smoke outlet pipe (22); the first air duct (23) is coaxial with the smoke outlet pipe (22); the second air ducts (24) are annularly distributed around the first air duct (23); the top of the second air duct (24) is connected to the first air duct (23); the lower end of the first air duct (23) extends horizontally to the outside of the smoke outlet pipe (22); an annular waste accumulation groove (25) is provided on the smoke outlet pipe (22) below the second air duct (24); and a waste outlet pipe is connected to one side of the waste accumulation groove (25).

9. The magnetic pulse low-temperature pyrolysis garbage mineralization processing equipment according to claim 8 is characterized in that: A heat exchange chamber is formed in the smoke outlet pipe (22) around the first air outlet pipe (23) and the second air outlet pipe (24), and a water inlet pipe and a water outlet pipe are respectively provided on both sides of the heat exchange chamber. The water inlet pipe and the water outlet pipe exchange heat with the exhaust gas in the first air outlet pipe (23) and the second air outlet pipe (24) by filling cooling water into the heat exchange chamber, thereby realizing a function of cooling the exhaust gas.

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