Domestic waste pyrolysis energy storage controllable pyrolysis chamber

Abstract

The present invention provides a domestic waste pyrolysis energy storage controllable pyrolysis bin, the first combustion chamber is surrounded by and on the top floor as an energy storage wall, a high temperature resistant energy storage flap is installed inside the first combustion chamber, the space in the first combustion chamber located above the high temperature resistant energy storage flap is an energy storage controllable pyrolysis bin, the space in the first combustion chamber located below the high temperature resistant energy storage flap is an incineration bin, a feed inlet is provided at the top of the first combustion chamber, and a common air outlet is provided at the junction of the incineration bin and the energy storage controllable pyrolysis bin on the first combustion chamber; two high temperature resistant energy storage flaps are respectively installed on two symmetrically installed rotating shafts, the two ends of the rotating shafts are respectively installed on the energy storage wall, and the rotating shafts are connected to the flap oil cylinder. The domestic waste pyrolysis energy storage controllable pyrolysis bin of the present invention can construct a closed oxygen-free environment, and at the same time, the garbage temperature can be quickly increased to a medium-high temperature of 500-700°C through energy storage and energy release, thereby reducing environmental pollution.

Description

Technical Field

[0001] The invention relates to the technical field of domestic waste treatment. Background Art

[0002] Domestic waste treatment is a global problem. At present, domestic waste treatment mainly adopts technologies such as landfill, composting and incineration. According to analysis, both landfill and composting must occupy a large amount of land resources and cause environmental pollution. They are no longer suitable for promotion. Incineration of waste will produce a large amount of toxic and harmful substances, especially dioxins. In contrast, pyrolysis treatment of waste can not only inhibit the generation of dioxins, but also produce very little flue gas. It will no longer cause harm after a little purification. Therefore, pyrolysis treatment of waste is the best technology for treating waste so far. However, although pyrolysis treatment technology is good, there are several technical bottlenecks that limit the development of waste pyrolysis treatment equipment: First, waste pyrolysis is best carried out in an oxygen-free environment, but it is difficult to do it in the same equipment; second, waste pyrolysis is best carried out in a relatively high temperature environment. Since the original calorific value of waste is relatively low, it is difficult to achieve a high temperature environment by adopting self-consumption heating under the condition of controlling costs; third, pyrolysis treatment technology is difficult to achieve large-scale so far, which also limits the application of this technology. Summary of the invention

[0003] In response to the above-mentioned bottleneck problems in the treatment of domestic waste, the present invention provides a domestic waste pyrolysis energy storage controllable pyrolysis chamber, which constructs a closed and oxygen-free pyrolysis environment with high temperature in a waste pyrolysis treatment station.

[0004] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: the first combustion chamber is surrounded by an energy storage wall 79 and a top layer, a high-temperature resistant energy storage flap 8 is installed inside the energy storage wall 79, the space above the high-temperature resistant energy storage flap 8 in the first combustion chamber is an energy storage controllable pyrolysis bin 9, the space below the high-temperature resistant energy storage flap 8 in the energy storage wall 79 is an incineration bin 6, a feed port 40 is provided at the top of the first combustion chamber, and a common air outlet 13 is provided at the junction of the incineration bin 6 and the energy storage controllable pyrolysis bin 9 on the first combustion chamber; two high-temperature resistant energy storage flaps 8 are respectively installed on two symmetrically installed rotating shafts 18, and the two ends of the two rotating shafts 18 are respectively installed on the energy storage wall 79, and the rotating shaft 18 is connected to the flap cylinder 67.

[0005] The two ends of the rotating shaft 18 are sleeved on bearing seats fixed in the two walls of the energy storage wall 79. A push rod 66 is installed at one end of the rotating shaft 18, and the push rod is connected to the flap cylinder 67 through an axle pin.

[0006] The energy storage wall 79 is composed of an outer wall steel plate 10, a ceramic fiber insulation board 82, an aluminum silicate insulation layer 81 and a castable energy storage ball combination layer 80 from the outside to the inside.

[0007] The energy storage wall 79 is surrounded by embedded heat pipe rows 12, which are evenly arranged vertically and fixedly buried in the wall surface of the castable energy storage ball combination layer 80. The bottom end of the heat pipe row 12 is located in the upper area of ​​the wall of the incineration bin 6, and the upper end of the heat pipe row 12 is located in the middle area of ​​the wall of the energy storage controllable pyrolysis bin 9.

[0008] The high temperature resistant energy storage flap 8 has energy storage material embedded therein.

[0009] The lower part of the incineration bin 6 is an ash bin 3 , and a turning grate 4 is arranged between the incineration bin 6 and the ash bin 3 . The turning grate 4 is installed on a shaft connected to an oil cylinder, and a spiral slag discharger 2 is installed in the ash bin 3 .

[0010] An annular air duct 5 is provided on the energy storage wall 79 at the incineration bin 6 .

[0011] The controllable pyrolysis chamber for pyrolysis and energy storage of domestic waste of the present invention has the following advantages:

[0012] 1. Under the pyrolysis working condition, the controllable pyrolysis chamber for pyrolysis of domestic waste can realize the pyrolysis reaction of waste in an anaerobic and high-temperature environment. The waste is completely pyrolyzed, which overcomes the defects of the general straight-cylinder waste pyrolysis treatment device, such as the difficulty in forming an anaerobic and high-temperature environment, resulting in low temperature and incomplete pyrolysis. It eliminates the new synthesis of dioxins to the greatest extent, thereby eliminating the dioxin hazards generated by waste treatment;

[0013] 2. Under pyrolysis conditions, a reducing atmosphere is formed in the pyrolysis chamber, and heavy metals are dissolved in the residual ash, so that the heavy metals are discharged in the form of slag, thereby reducing the harm caused by heavy metals in the form of fly ash discharge;

[0014] 3. Under pyrolysis conditions, the garbage is completely pyrolyzed and the amount of flue gas produced is very small, which simplifies the subsequent flue gas purification system and reduces the cost;

[0015] 4. Under the unloading condition, the controllable pyrolysis bin of domestic waste pyrolysis energy storage can quickly unload materials into the incineration bin, and then quickly switch to the pyrolysis condition, so that the waste pyrolysis treatment maintains continuity and stability, and ensures the normal operation of the waste pyrolysis treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view of the vehicle-mounted garbage disposal station of the present invention.

[0017] Figure 2 yes Figure 1 PP cross-section diagram.

[0018] Figure 3 yes Figure 1 WW cross-section diagram.

[0019] Figure 4It is a cross-sectional structural diagram of the pyrolysis bin of the vehicle-mounted garbage treatment station of the present invention in the feeding state.

[0020] Figure 5 It is a cross-sectional structural diagram of the state in which the pyrolysis bin of the vehicle-mounted garbage treatment station of the present invention is unloading materials into the incineration bin.

[0021] In the figure: slag outlet 1; spiral slag discharger 2; ash bin 3; tilting grate 4; annular air duct 5; incineration bin 6; high temperature resistant energy storage flap 8; energy storage controllable pyrolysis bin 9; outer wall steel plate 10; temperature sensor 11; heat pipe row 12; common air outlet 13; first flue gas passage 14; first secondary air inlet pipe 15; second flue gas passage 16; first cyclone combustion bin 17; rotating shaft 18; emergency bypass valve 21; primary air inlet pipe 37; feed inlet 40; push rod 66; flap cylinder 67; energy storage wall 79; castable energy storage ball combination layer 80; aluminum silicate insulation layer 81; ceramic fiber insulation board 82. DETAILED DESCRIPTION

[0022] The domestic waste pyrolysis energy storage controllable pyrolysis chamber of the present invention is as follows Figure 1-3 As shown, it includes an energy storage controllable pyrolysis chamber 9 and an incineration chamber 6, an energy storage wall 79, a heat pipe row 12 and a high temperature resistant energy storage flap 8, and a matching hydraulic flip mechanism. The first combustion chamber energy storage controllable pyrolysis chamber 9 and the incineration chamber 6 are the main chambers of the mobile domestic waste pyrolysis treatment station for pyrolysis treatment of domestic waste, wherein the energy storage controllable pyrolysis chamber 9 is located in the upper layer of the first combustion chamber, and the incineration chamber 6 is located in the middle layer of the first combustion chamber and below the energy storage controllable pyrolysis chamber 9.

[0023] The energy storage controllable pyrolysis chamber 9 has a hexahedral square structure, in which the surrounding and top layers are energy storage walls 79, and the middle part is a high-temperature resistant energy storage flap 8 equipped with a rotating shaft and rotatable around the shaft; a feed port 40 is provided at the upper right corner of the right side of the top layer, and a common air outlet 13 is provided at the junction of the lower left corner and the upper left corner of the lower incineration chamber, and the common air outlet is connected to the first cyclone combustion chamber 17 of the second combustion chamber through the first flue gas passage 14.

[0024] The energy storage wall 79 is composed of a ceramic fiber insulation board 82, an aluminum silicate insulation layer 81 and a castable energy storage ball combination layer 80 from the outside to the inside, forming an energy storage fire-resistant heat-insulating wall that integrates fire resistance, energy storage, and heat preservation and insulation.

[0025] Heat pipe rows 12 are embedded in the energy storage walls 79 around the energy storage controllable pyrolysis bin 9. The heat pipe rows 12 are evenly arranged vertically and fixedly buried in the wall surface of the castable energy storage ball combination layer 80. The bottom end is located in the upper area of ​​the wall of the incineration bin 6, and the upper end extends to the middle area of ​​the wall of the energy storage controllable pyrolysis bin 9.

[0026] The middle part of the energy storage controllable pyrolysis chamber 9 is at least two high temperature resistant energy storage flaps 8, each of which is equipped with a rotating shaft 18 and can rotate around the shaft 18. The two ends of the rotating shaft are mounted on the bearing seats fixed in the two walls. A push rod 66 is installed at one end of the shaft extension. The push rod is connected to the flap oil cylinder 67 through an axle pin to form a turning mechanism controlled by the oil cylinder. The high temperature resistant energy storage flap 8 is made of high temperature resistant metal plates and rotating shafts, and energy storage materials such as energy storage balls are embedded inside. After the overall formation, it has the ability to store and release energy.

[0027] like Figure 4 and Figure 5 As shown, by adjusting the turning angle of the high-temperature resistant energy storage flap 8, two operating conditions can be achieved: one is the pyrolysis condition, in which the high-temperature resistant energy storage flap 8 is adjusted to the 0° level, and the high-temperature resistant energy storage flap 8 together with the surrounding walls and the top wall forms a fully enclosed chamber. During operation, the feed inlet 40 is closed, the chamber is in a negative pressure environment, the air outlet cannot flow in reverse, and the airflow in the incineration chamber 6 is affected by the negative pressure and cannot bypass the energy storage controllable pyrolysis chamber 9. At this time, the energy storage controllable pyrolysis chamber 9 forms a closed and anaerobic environment, which is suitable for the pyrolysis reaction of garbage, and the gas generated by the pyrolysis flows out from the common outlet 13; the second is the unloading condition, in which the high-temperature resistant energy storage flap 8 is adjusted to close to 70-90°, and the energy storage controllable pyrolysis chamber 9 is directly connected with the lower incineration chamber 6. The residue in the energy storage controllable pyrolysis chamber 9 loses support and is dumped into the incineration chamber 6. At this time, the pyrolysis condition is converted into a rapid incineration and unloading condition. By switching between the above two working conditions, continuous and stable pyrolysis treatment of domestic waste can be achieved in the pyrolysis treatment station.

[0028] The lower part of the incineration bin 6 is the ash bin 3, and a turning grate 4 is provided between the incineration bin 6 and the ash bin 3. The turning grate 4 is installed on the shaft, and the shaft is connected to the oil cylinder (the principle is the same as the high-temperature resistant energy storage flap 8), and a spiral slag discharger 2 is installed in the ash bin 3.

[0029] The present invention can construct a closed anaerobic environment in the pyrolysis condition, and simultaneously quickly increase the temperature of the garbage to a medium-high temperature of 500-700°C through energy storage and release, thereby allowing the garbage to undergo a stable and efficient pyrolysis reaction in an anaerobic and high-temperature environment.

[0030] The present invention is described by way of embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the protection scope of the present invention.

Claims

1. The controllable pyrolysis chamber for pyrolysis and energy storage of domestic waste is characterized by: The first combustion chamber is surrounded by an energy storage wall (79) and on the top floor. A high temperature resistant energy storage flap (8) is installed inside the energy storage wall (79). The space above the high temperature resistant energy storage flap (8) in the first combustion chamber is an energy storage controllable pyrolysis chamber (9). The space below the high temperature resistant energy storage flap (8) in the energy storage wall (79) is an incineration chamber (6). A feed inlet (40) is provided at the top of the first combustion chamber. A common air outlet (13) is provided at the junction of the incineration chamber (6) and the energy storage controllable pyrolysis chamber (9) on the first combustion chamber. Two high temperature resistant energy storage flaps (8) are respectively installed on two symmetrically installed rotating shafts (18). The two ends of the two rotating shafts (18) are respectively installed on the energy storage wall (79). The rotating shaft (18) is connected to the flap oil cylinder (67). By adjusting the angle of the high temperature resistant energy storage flap (8), two operating conditions can be realized: one is the pyrolysis condition, in which the high temperature resistant energy storage flap (8) is adjusted to the 0° level, and the high temperature resistant energy storage flap (8) together with the surrounding walls and the top wall forms a fully enclosed chamber, and the feed inlet (40) is closed during operation. At this time, the energy storage controllable pyrolysis chamber (9) forms a closed oxygen-free environment; the other is the unloading condition, in which the high temperature resistant energy storage flap (8) is adjusted to 70-90°, and the energy storage controllable pyrolysis chamber (9) is directly connected to the lower incineration chamber (6), and the pyrolysis condition is converted into a rapid incineration and unloading condition.

2. The controllable pyrolysis chamber for pyrolysis and energy storage of domestic waste according to claim 1 is characterized by: The two ends of the rotating shaft (18) are mounted on bearing seats fixed in two walls of the energy storage wall (79). A push rod (66) is installed at one end of the shaft extension of the rotating shaft (18), and the push rod is connected to the flap oil cylinder (67) through an axle pin.

3. The controllable pyrolysis chamber for pyrolysis and energy storage of domestic waste according to claim 1 is characterized by: The energy storage wall (79) is composed from the outside to the inside of an outer wall steel plate (10), a ceramic fiber heat insulation board (82), an aluminum silicate insulation layer (81) and a castable energy storage ball combination layer (80).

4. The controllable pyrolysis chamber for pyrolysis and energy storage of domestic waste according to claim 3 is characterized by: Heat pipe rows (12) are embedded in the four sides of the energy storage wall (79), and the heat pipe rows (12) are evenly arranged vertically and fixedly buried in the wall surface of the castable energy storage ball combination layer (80). The bottom end of the heat pipe row (12) is located in the upper layer area of ​​the wall of the incineration bin (6), and the upper end of the heat pipe row (12) is located in the middle layer area of ​​the wall of the energy storage controllable pyrolysis bin (9).

5. The controllable pyrolysis chamber for pyrolysis and energy storage of domestic waste according to claim 1 is characterized by: The high temperature resistant energy storage flap (8) has energy storage material embedded inside.

6. The controllable pyrolysis chamber for pyrolysis and energy storage of domestic waste according to claim 1 is characterized by: The lower part of the incineration bin (6) is an ash bin (3), and a turning grate (4) is arranged between the incineration bin (6) and the ash bin (3). The turning grate (4) is installed on a shaft, which is connected to an oil cylinder. A spiral slag discharger (2) is installed in the ash bin (3).

7. The controllable pyrolysis chamber for pyrolysis and energy storage of domestic waste according to claim 1 is characterized by: An annular air duct (5) is provided on the energy storage wall (79) at the incineration bin (6).

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