A pyrolysis incinerator for wind power blade waste and its usage method

Abstract

The present invention provides a pyrolysis incinerator for wind power blade waste, which relates to the technical field of incinerators and includes an incinerator body and a base at the bottom. The incinerator body includes an outer furnace layer and an inner furnace layer. A heat storage interlayer is formed between the inner furnace layer and the outer furnace layer. A first spiral partition is connected inside the heat storage interlayer. The first spiral partition divides the interior of the heat storage interlayer into a first spiral channel. A smoke exhaust port is provided at the top of the incinerator body. The present invention can partially recover the high-calorie flue gas to be discharged when the incinerator incinerates waste and circulate it into the interior of the heat storage interlayer of the incinerator, so that the heat is reused by the incinerator. The heat inside the incinerator body is blocked by the high-temperature flue gas, which can reduce the heat dissipation in the furnace, increase the thermal efficiency in the furnace, and save incineration fuel to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of incinerators, and particularly to a pyrolysis incinerator for wind power blade waste and a using method thereof. Background Art

[0002] Wind power blades are the core components in wind turbines that convert natural wind energy into electrical energy of wind power generating sets, and are also the main basis for measuring the design and technical level of wind power generating sets. Most of the treatment of wind blade waste is achieved through incineration means.

[0003] Currently, when incinerating this kind of waste, a pyrolysis incinerator is required. When the existing incinerator works, it needs to use combustion media such as gas and coal to ignite the waste. The patent with the publication number CN2462252Y proposed a pyrolytic waste incinerator. The high-temperature flue gas discharged from the combustion chamber enters the waste heat recovery device. The waste heat recovery device is a waste heat boiler with a water-tube structure. When the high-temperature gas passes through the waste heat recovery device, 85% of the heat is recovered and utilized, and the water temperature can reach 90 - 100°C. The high-temperature hot water of the waste heat recovery device can also be sent to the domestic hot water storage tank to supply domestic hot water or for heating use by the storage tank. Although these can recover the waste heat for other uses, the directly discharged heat cannot be fed back to the incinerator for reuse at the incinerator to improve the thermal efficiency inside the incinerator. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides a pyrolysis incinerator for wind power blade waste and a using method thereof, which solves the problem that when the existing incinerator works, it needs to use combustion media such as gas and coal to ignite the waste, and the hot flue gas is directly discharged into the waste heat recovery step or other steps, and its heat cannot be reused at the incinerator to improve the thermal efficiency inside the incinerator.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the present invention is realized through the following technical solutions: A pyrolysis incinerator for waste wind turbine blades, comprising an incinerator body and a base at the bottom. The incinerator body includes an outer furnace layer and an inner furnace layer. A heat storage interlayer is formed between the inner furnace layer and the outer furnace layer. A first spiral partition is connected inside the heat storage interlayer. The first spiral partition divides the interior of the heat storage interlayer into a first spiral channel. A smoke exhaust port is provided at the top of the incinerator body. A feeding channel is connected between one side of the smoke exhaust port and the top of the incinerator body. One end of the feeding channel is connected to a crushing box. An inlet is provided at the top of the crushing box. A transmission box is connected to one side of the crushing box. A support leg is connected to the bottom of the crushing box. A support base is connected to the bottom of the support leg. Smoke inlet pipes and a smoke outlet pipe are respectively connected to both sides of the smoke exhaust port. One end of the smoke inlet pipe communicates with the top of the first spiral channel. One end of the smoke outlet pipe communicates with the bottom of the first spiral channel. A cleaning mechanism for the interlayer is provided inside the first spiral channel.

[0008] Preferably, a high-temperature resistant exhaust fan is provided between the smoke inlet pipe and the smoke exhaust port. A liquid inlet is provided on one side of the smoke inlet pipe. A liquid discharge port is provided on one side of the smoke outlet pipe.

[0009] Preferably, valves are provided at the liquid inlet and the liquid discharge port, and a cleaning liquid tank is externally connected to the liquid inlet through a pipeline.

[0010] Preferably, the cleaning mechanism for the interlayer includes a cleaning cylinder arranged inside the first spiral channel. Scraping blades are installed at both ends of the cleaning cylinder. A strong magnet is installed on the side of the cleaning cylinder close to the outer furnace layer. A second spiral partition is fixed to the outer wall of the outer furnace layer. The second spiral partition forms a second spiral channel. A magnet adsorption push plate is provided inside the second spiral channel.

[0011] Preferably, the outer furnace layer is made of a metal material that does not adsorb magnets, and the inner wall of the heat storage interlayer is coated with an anti-fouling nano-coating.

[0012] Preferably, two crushing and cutting rollers are arranged inside the crushing box. One end of each of the two crushing and cutting rollers extends into the transmission box and is fixedly sleeved with a gear. The two gears at one end of the two crushing and cutting rollers mesh with each other. A driving motor is installed inside the transmission box. One end of one of the crushing and cutting rollers is connected to the driving end of the driving motor. A conveying auger is arranged inside the feeding channel. One end of the conveying auger extends into the transmission box and is rotatably connected to the inner side wall of the transmission box. Belt pulleys are fixedly sleeved at one end of the conveying auger located inside the transmission box and at the driving end of the driving motor. A belt is commonly connected to the surface of the belt pulleys. One end of the feeding channel is connected to a blanking port. The blanking port communicates with the top of the incinerator body.

[0013] A method for using a pyrolysis incinerator for wind power blade waste, comprising the following specific steps of use:

[0014] a. Import the waste from the feed inlet into the crushing box, cut and crush the waste through two crushing and cutting rollers, let it fall into the feeding channel, and convey it to the inside of the incinerator body through a conveying auger for incineration;

[0015] b. When high-temperature flue gas is generated during incineration, it is discharged through the smoke exhaust port and enters the next process. At the same time, start the high-temperature resistant exhaust fan to input part of the high-temperature flue gas into the inside of the first spiral channel to store heat in the heat storage interlayer, and then re-enter the smoke exhaust port from the smoke outlet pipe;

[0016] c. When a large amount of soot adheres to the inside of the heat storage interlayer, clean the inside of the heat storage interlayer. Enter the cleaning liquid through the liquid inlet. At the same time, the operator moves the magnet adsorption push plate inside the second spiral channel by pulling the magnet, so that the ash cleaning cylinder adsorbed to it moves inside the first spiral channel, and scrapes off the soot inside the first spiral channel of the heat storage interlayer through the scraping blade, and the soot is taken out by the cleaning liquid entering the inside of the first spiral channel and discharged from the liquid discharge port.

[0017] (III) Beneficial effects

[0018] The present invention provides a pyrolysis incinerator for wind power blade waste and a method for using the same. The following beneficial effects are achieved:

[0019] 1. The present invention can partially recover the high-temperature flue gas to be discharged when the waste is incinerated in the incinerator and circulate it into the inside of the heat storage interlayer of the incinerator, so that the heat is reused by the incinerator. The heat inside the incinerator body is blocked by the high-temperature flue gas, which can reduce the heat dissipation in the furnace, increase the thermal efficiency in the furnace, and save incineration fuel to a certain extent.

[0020] 2. The present invention can move the scraping blade by means of magnet adsorption, use the blade to remove the dirt on the inner wall of the heat storage interlayer, and clean the soot attached to the inside of the interlayer by flushing.

[0021] 3. The present invention can re-crush the waste at the inlet of the incinerator, crush the waste into smaller pieces, improve the crushing effect, make the incineration effect better, and at the same time drive the auger transmission and waste cutting by one motor, which is more energy-saving and environmentally friendly. Description of the drawings

[0022] Figure 1 is a three-dimensional view of the present invention;

[0023] Figure 2 is a cross-sectional view of the incinerator body in the present invention;

[0024] Figure 3 is a schematic diagram of the ash cleaning cylinder in the present invention;

[0025] Figure 4 This is a partial cross-sectional view in the present invention.

[0026] Among them, 1 is the incinerator body; 101 is the outer layer of the furnace body; 102 is the inner layer of the furnace body; 103 is the first spiral partition; 104 is the first spiral channel; 2 is the base; 3 is the crushing box; 301 is the crushing and cutting roller; 4 is the feeding channel; 401 is the conveying auger; 402 is the discharging port; 5 is the feeding port; 6 is the transmission box; 601 is the driving motor; 602 is the gear; 603 is the belt; 604 is the belt pulley; 7 is the support leg; 8 is the support seat; 9 is the second spiral partition; 10 is the second spiral channel; 11 is the interlayer ash cleaning mechanism; 111 is the ash cleaning cylinder; 112 is the strong magnet; 113 is the magnet adsorption push plate; 114 is the scraping blade; 12 is the smoke inlet pipe; 13 is the smoke outlet pipe; 14 is the high-temperature exhaust fan; 15 is the liquid discharge port; 16 is the liquid inlet port; 17 is the smoke exhaust port. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1:

[0029] As Figure 1 - Figure 2 shown, an embodiment of the present invention provides a pyrolysis incinerator for wind power blade waste, including an incinerator body 1 and a base 2 at the bottom. The incinerator body 1 includes an outer layer 101 of the furnace body and an inner layer 102 of the furnace body. A heat storage interlayer is formed between the outer layer 101 of the furnace body and the inner layer 102 of the furnace body. The first spiral partition 103 is connected inside the heat storage interlayer. The first spiral partition 103 divides the inside of the heat storage interlayer into a first spiral channel 104. A smoke exhaust port 17 is provided at the top of the incinerator body 1. A feeding channel 4 is connected between one side of the smoke exhaust port 17 and the top of the incinerator body 1. One end of the feeding channel 4 is connected to a crushing box 3. A feeding port 5 is provided at the top of the crushing box 3. A transmission box 6 is connected to one side of the crushing box 3. The bottom end of the crushing box 3 is connected to a support leg 7. The bottom of the support leg 7 is connected to a support seat 8. A smoke inlet pipe 12 and a smoke outlet pipe 13 are respectively connected to both sides of the smoke exhaust port 17. One end of the smoke inlet pipe 12 is communicated with the top end of the first spiral channel 104. One end of the smoke outlet pipe 13 is communicated with the bottom end of the first spiral channel 104. An interlayer ash cleaning mechanism 11 is arranged inside the first spiral channel 104.

[0030] As Figure 2As shown in the figure, a high-temperature resistant exhaust fan 14 is provided between the smoke inlet pipe 12 and the smoke outlet 17. A liquid inlet 16 is provided on one side of the smoke inlet pipe 12, and a liquid outlet 15 is provided on one side of the smoke outlet pipe 13. When exhausting smoke, the high-temperature resistant exhaust fan 14 can draw part of the smoke into the heat storage interlayer, so that the heat is reused by the incinerator. The heat inside the incinerator body 1 is blocked by the high-temperature smoke, which can greatly reduce the heat loss inside the incinerator. Using less fuel than before can achieve the same incineration effect as before, increasing the thermal efficiency inside the furnace.

[0031] Embodiment 2:

[0032] Since the discharged high-temperature ash directly enters the first spiral channel 104, after long-term use, a large amount of ash will adhere to the inside of the first spiral channel 104, thus affecting the interaction with the heat inside the incinerator body 1. Therefore, the present invention is further extended, such as Figure 2 - Figure 3 As shown in the figure, valves are provided at the liquid inlet 16 and the liquid outlet 15, and a cleaning liquid tank is externally connected to the liquid inlet 16 through a pipeline. A liquid extraction pump is provided inside the cleaning liquid tank, which can extract the cleaning liquid and introduce it through the liquid inlet 16 to the first spiral channel 104 to wash the adhered ash inside;

[0033] The interlayer ash cleaning mechanism 11 includes a cleaning cylinder 111 arranged inside the first spiral channel 104. Scraping blades 114 are installed at both ends of the cleaning cylinder 111. A strong magnet 112 is installed on the side of the cleaning cylinder 111 close to the outer layer 101 of the furnace. A second spiral partition 9 is fixed on the outer wall of the outer layer 101 of the furnace. The second spiral partition 9 forms a second spiral channel 10. A magnet adsorption push plate 113 is arranged inside the second spiral channel 10. Through adsorption, the cleaning cylinder 111 inside can be driven to move. The outer layer 101 of the furnace is made of a metal material that does not adsorb magnets, avoiding the direct adsorption of the strong magnet 112 on the outer layer of the furnace. The strong magnet 112 and the magnet adsorption push plate 113 adsorb each other. The magnet adsorption push plate 113 is used to push the strong magnet 112 to move. At the same time, the inner wall of the heat storage interlayer is coated with an anti-fouling nano-coating, which can make the surface of the heat storage interlayer smoother. At the same time, the ash will not tightly adhere to the inside of the first spiral channel 104, so that the dust can be scraped off more easily. At the same time, it cooperates with the cleaning liquid to play a role in lubrication and flushing the scraped ash.

[0034] Embodiment 3:

[0035] The structure of this embodiment is basically the same as that of Embodiment 1, except that:

[0036] Such as Figure 4As shown in the figure, two crushing and cutting rollers 301 are arranged inside the crushing box 3. One end of each of the two crushing and cutting rollers 301 extends into the transmission box 6 and is fixedly sleeved with a gear 602. The two gears 602 at one end of the two crushing and cutting rollers 301 are meshed with each other. A driving motor 601 is installed inside the transmission box 6. One end of one of the crushing and cutting rollers 301 is connected to the driving end of the driving motor 601. A conveying auger 401 is arranged inside the feeding channel 4. One end of the conveying auger 401 extends into the transmission box 6 and is rotatably connected to the inner side wall of the transmission box 6. One end of the conveying auger 401 located inside the transmission box 6 and the driving end of the driving motor 601 are both fixedly sleeved with a pulley 604. The surfaces of the pulleys 604 are jointly connected with a belt 603. One end of the feeding channel 4 is connected with a feeding port 402, and the feeding port 402 is communicated with the top end of the incinerator body 1.

[0037] Further crushing the waste before incineration can increase the overall fluffiness of the waste, enabling the waste to be incinerated better. During use, pour the waste into the feeding port 5, start the driving motor 601 to drive the pulleys 604 and gears 602 to rotate, so that the two meshed gears 602 drive the two crushing and cutting rollers 301 to rotate, in order to crush and cut the waste again. The materials after cutting and crushing fall into the feeding channel 4, and the conveying auger 401 rotates under the action of the pulley 604 driving the belt 603 to convey the waste to the incinerator body 1.

[0038] An electric opening and closing plate is also arranged at the feeding port 402, which is opened during feeding and closed during incineration to prevent the flue gas from overflowing from the feeding port 402.

[0039] Example 4:

[0040] A method for using a pyrolysis incinerator for wind turbine blade waste, including the following specific use steps:

[0041] a. Import the waste from the feeding port 5 into the crushing box 3, cut and crush the waste through the two crushing and cutting rollers 301, and it falls into the feeding channel 4 and is conveyed to the inside of the incinerator body 1 through the conveying auger 401 for incineration;

[0042] b. When incinerating, high-temperature flue gas is generated and discharged through the smoke exhaust port 17 into the next process. At the same time, start the high-temperature resistant exhaust fan 14 to input part of the high-temperature flue gas into the inside of the first spiral channel 104 to store heat in the heat storage interlayer, and then re-enter the smoke exhaust port 17 from the smoke outlet pipe 13;

[0043] c. When a large amount of soot adheres to the heat storage interlayer, clean the inside of the heat storage interlayer. Enter the cleaning liquid through the liquid inlet 16. At the same time, the operator moves the magnet adsorption push plate 113 inside the second spiral channel 10 by pulling the magnet, so that the dust cleaning cylinder 111 adsorbed to it moves inside the first spiral channel 104, and the soot inside the first spiral channel 104 of the heat storage interlayer is scraped off by the scraping blade 114, and the soot is taken out by the cleaning liquid entering the first spiral channel 104 and discharged from the liquid discharge port 15.

[0044] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pyrolysis incinerator for wind power blade waste, comprising an incinerator body (1) and a base (2) at the bottom, Characterized in that: The incinerator body (1) includes an outer furnace layer (101) and an inner furnace layer (102). A heat storage interlayer is formed between the outer furnace layer (101) and the inner furnace layer (102). A first spiral partition (103) is connected inside the heat storage interlayer. The first spiral partition (103) divides the interior of the heat storage interlayer into a first spiral channel (104). A smoke exhaust port (17) is provided at the top of the incinerator body (1). A feeding channel (4) is connected between one side of the smoke exhaust port (17) and the top of the incinerator body (1). One end of the feeding channel (4) is connected to a crushing box (3). A feeding port (5) is provided at the top of the crushing box (3). One side of the crushing box (3) is connected to a transmission box (6). The bottom of the crushing box (3) is connected to a support leg (7). The bottom of the support leg (7) is connected to a support base (8). Smoke inlet pipes (12) and a smoke outlet pipe (13) are respectively connected to both sides of the smoke exhaust port (17). One end of the smoke inlet pipe (12) communicates with the top of the first spiral channel (104). One end of the smoke outlet pipe (13) communicates with the bottom of the first spiral channel (104). A sandwich ash cleaning mechanism (11) is provided inside the first spiral channel (104); The sandwich ash cleaning mechanism (11) includes an ash cleaning cylinder (111) arranged inside the first spiral channel (104). Scraping blades (114) are installed at both ends of the ash cleaning cylinder (111). A strong magnet (112) is installed on the side of the ash cleaning cylinder (111) close to the outer furnace layer (101). A second spiral partition (9) is fixed on the outer wall of the outer furnace layer (101). The second spiral partition (9) forms a second spiral channel (10). A magnet adsorption push plate (113) is provided inside the second spiral channel (10).

2. A pyrolysis incinerator for wind power blade waste according to claim 1, Characterized in that: A high-temperature resistant exhaust fan (14) is provided between the smoke inlet pipe (12) and the smoke exhaust port (17). A liquid inlet (16) is provided on one side of the smoke inlet pipe (12). A liquid discharge port (15) is provided on one side of the smoke outlet pipe (13).

3. A pyrolysis incinerator for wind power blade waste according to claim 2, Characterized in that: Valves are provided at the liquid inlet (16) and the liquid discharge port (15), and the liquid inlet (16) is externally connected to a cleaning liquid tank through a pipeline.

4. A pyrolysis incinerator for wind power blade waste according to claim 1, Characterized in that: The outer furnace layer (101) is made of a metal material that does not adsorb magnets, and the inner wall of the heat storage interlayer is coated with an anti-fouling nano-coating.

5. A pyrolysis incinerator for wind power blade waste according to claim 1, Characterized in that: Inside the crushing box (3), there are two crushing and cutting rollers (301). One end of each of the two crushing and cutting rollers (301) extends into the transmission box (6) and is fixedly sleeved with a gear (602). The two gears (602) at one end of the two crushing and cutting rollers (301) mesh with each other. A driving motor (601) is installed inside the transmission box (6). One end of one of the crushing and cutting rollers (301) is connected to the driving end of the driving motor (601). Inside the feeding channel (4), there is a conveying auger (401). One end of the conveying auger (401) extends into the transmission box (6) and is rotatably connected to the inner side wall of the transmission box (6). One end of the conveying auger (401) located inside the transmission box (6) and the driving end of the driving motor (601) are both fixedly sleeved with pulley wheels (604). The pulley wheels (604) are jointly connected by a belt (603). One end of the feeding channel (4) is connected to a feeding port (402), and the feeding port (402) communicates with the top end of the incinerator body (1).

6. The usage method of a pyrolysis incinerator for wind turbine blade waste according to any one of claims 1 - 5, characterized in that: it includes the following specific usage steps: a. Import the waste from the feeding port (5) into the crushing box (3). Cut and crush the waste through the two crushing and cutting rollers (301), and let it fall into the feeding channel (4) and be conveyed to the inside of the incinerator body (1) through the conveying auger (401) for incineration; b. When incinerating, high - temperature flue gas is generated and discharged through the smoke exhaust port (17) to enter the next process. At the same time, start the high - temperature resistant exhaust fan (14) to input part of the high - temperature flue gas into the first spiral channel (104) to store heat in the heat storage interlayer, and then re - enter the smoke exhaust port (17) from the smoke outlet pipe (13); c. When a large amount of soot adheres to the heat storage interlayer, clean the inside of the heat storage interlayer. Enter the cleaning liquid through the liquid inlet (16). At the same time, the operator moves the magnet - adsorbed push plate (113) inside the second spiral channel (10), so that the ash - cleaning cylinder (111) adsorbed to it moves inside the first spiral channel (104), and scrapes off the soot inside the first spiral channel (104) of the heat storage interlayer with the scraping blade (114), and the soot is taken out through the cleaning liquid entering the first spiral channel (104) and discharged from the liquid discharge port (15).

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