Garbage cracking incinerator

Abstract

The garbage cracking incinerator comprises an incinerator body, a hopper assembly is arranged at the upper end of the incinerator body and used for dumping garbage into the incinerator body, a drying gasification chamber, a cracking gasification chamber, a carbonization cracking chamber and a combustion chamber are sequentially arranged in the incinerator body from top to bottom, and an ash collecting mechanism is arranged on the incinerator body. The ash collecting mechanism communicates with the lower end of the combustion chamber and is used for discharging ash generated by waste incineration; an oxygen supply device, a combustible gas injection mechanism and a flue gas circulation mechanism are arranged on the furnace body, the oxygen supply device is used for injecting oxygen-enriched air into the combustion chamber, the combustible gas injection mechanism is used for injecting combustible gas in the drying gasification chamber into the combustion chamber, and the flue gas circulation mechanism is used for prolonging the retention time of flue gas in the cracking gasification chamber. According to the utility model, residues and combustible gas in flue gas can be reduced, so that secondary pollution of the flue gas to the environment is reduced; and the problem that flammable gas is in contact with air and is on fire again to cause fire disasters can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to garbage treatment device technical field, concretely relates to a garbage pyrolysis incinerator. BACKGROUND

[0002] With the high -speed development of our country economy and material level improvement, "garbage surrounds the city" is the problem that most domestic cities face, if not effective disposal, will cause serious pollution to the environment. At present garbage disposal mode is mainly to fill the hole, but it has the shortcomings such as many land occupation, leachate is difficult to handle, surrounding environment secondary pollution. Garbage incineration method can make garbage 90% reduction, 70%-80% reduction, make the land area greatly reduced, meet the requirement of reduction;Therefore, in recent years, many cities have introduced relevant garbage incineration equipment, and the city garbage is handled by incineration method.

[0003] The existing garbage incinerator lacks a flue gas recycling device, and a large amount of flue gas generated after garbage incineration is directly discharged into the air. The discharged flue gas usually contains some residues and combustible gas. The residues and combustible gas not only cause secondary pollution to the environment, but also may cause a fire when the combustible gas in the flue gas contacts with air during flue gas discharge, which poses a risk of fire. SUMMARY

[0004] To solve the above problems in the prior art, the utility model provides a garbage pyrolysis incinerator, which comprises a furnace body, a hopper assembly is arranged at the upper end of the furnace body, the hopper assembly is used for pouring garbage into the furnace body, a drying gasification chamber, a pyrolysis gasification chamber, a carbonization pyrolysis chamber and a combustion chamber are sequentially arranged in the furnace body from top to bottom, an ash collecting mechanism is arranged on the furnace body and is communicated with the lower end of the combustion chamber, and the ash collecting mechanism is used for discharging the ash generated by garbage incineration; an oxygen supply device, a combustible gas injection mechanism and a flue gas circulation mechanism are arranged on the furnace body, the oxygen supply device is used for injecting oxygen-rich air into the combustion chamber, the combustible gas injection mechanism is used for injecting the combustible gas in the drying gasification chamber into the combustion chamber, and the flue gas circulation mechanism is used for prolonging the residence time of flue gas in the pyrolysis gasification chamber.

[0005] As a further improvement of the utility model, the oxygen supply device comprises an oxygen supply machine, the oxygen supply machine is connected with the furnace body, oxygen supply pipes are arranged on the inner side walls around the furnace body at positions corresponding to the combustion chamber, and the output end of the oxygen supply machine is connected with the oxygen supply pipes.

[0006] As a further improvement of the utility model, the combustible gas injection mechanism comprises a first air extractor, the first air extractor is connected with the furnace body, the input end of the first air extractor is communicated with the drying gasification chamber, the inner side wall around the furnace body is respectively provided with an injection gas pipe at the corresponding position of the combustion chamber, and the output end of the first air extractor is communicated with the injection gas pipe.

[0007] As a further improvement of the utility model, the flue gas circulation mechanism comprises a second air extractor, the inner side wall around the furnace body is respectively provided with a flue gas extraction pipe and a flue gas exhaust pipe at the corresponding position of the cracking gasification chamber, the flue gas extraction pipe is located above the flue gas exhaust pipe, the flue gas extraction pipe is connected with the input end of the second air extractor, and the flue gas exhaust pipe is connected with the output end of the second air extractor.

[0008] As a further improvement of the utility model, the furnace body is internally provided with a heat reflection cover, the heat reflection cover is arranged between the drying gasification chamber and the cracking gasification chamber, and a plurality of small holes for flue gas to pass through are formed in the heat reflection cover.

[0009] As a further improvement of the utility model, the hopper assembly comprises a hollow hopper body, the hopper body is connected with the furnace body, one end of the hopper body is communicated with the drying gasification chamber, the other end is provided with an upper cover, one end of the upper cover is hinged to the hopper body, an opening and closing mechanism is arranged on the hopper body, the output end of the opening and closing mechanism is connected with the upper cover, the opening and closing mechanism is used for driving the upper cover to rotate and move along the hinged end, a sealing plate is arranged in the hopper body, one end of the sealing plate is hinged to the inner side wall of the hopper body, the sealing plate can be sealed and abutted to the inner side wall of the hopper body, an uncovering mechanism is arranged on the hopper body, the output end of the uncovering mechanism is connected with the sealing plate, the uncovering mechanism is used for driving the sealing plate to rotate and swing along the hinged end, so as to open or block the inner cavity of the hopper body.

[0010] As a further improvement of the utility model, the uncovering mechanism comprises a pulling assembly and a pushing assembly, the pulling assembly and the pushing assembly are respectively connected with the hopper body, the output ends of the pulling assembly and the pushing assembly are respectively connected with the sealing plate, the pulling assembly is used for pulling the sealing plate to rotate and move upwards along the hinged end, and the pushing assembly is used for pushing the sealing plate to rotate and move downwards along the hinged end.

[0011] As a further improvement of the utility model, the inner side wall around the hopper body is respectively provided with a sealing strip at the corresponding position of the sealing plate, and the sealing plate can be sealed and abutted to the sealing strip.

[0012] As a further improvement of the present application, the ash collecting mechanism comprises a conical ash collecting hopper, the conical ash collecting hopper is connected with the lower end of the furnace body, and the lower end of the conical ash collecting hopper is provided with an ash discharging assembly; the ash discharging assembly comprises an ash discharging pipe, the ash discharging pipe is obliquely arranged below the conical ash collecting hopper, the ash discharging pipe is communicated with the conical ash collecting hopper, a helical blade shaft is arranged in the ash discharging pipe, an ash discharging driving assembly and an ash discharging port are arranged on the ash discharging pipe, the output end of the ash discharging driving assembly is connected with the helical blade shaft, and the ash discharging driving assembly is used for driving the helical blade shaft to rotate.

[0013] As a further improvement of the present application, the inner side wall of the furnace body is provided with a heat insulation layer.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] The combustible gas injection mechanism and the flue gas circulation mechanism are arranged, so that the residues and combustible gas in the flue gas discharged by the waste incineration can be reduced, thereby reducing the secondary pollution of the discharged flue gas to the environment, and the problem that the combustible gas contacts air and causes fire again is avoided, and the safety of operation is improved.

[0016] Specifically, the combustible gas generated in the waste cracking process can be extracted into the combustion chamber by the combustible gas injection mechanism for combustion, so that the waste can be fully combusted in the combustion chamber; in addition, the residence time of the flue gas in the furnace body can be prolonged by the flue gas circulation mechanism, so that the residues in the flue gas can be more fully combusted. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the schemes in the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0018] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0019] Figure 2 is a schematic diagram of the internal structure of the embodiment of the present application;

[0020] Figure 3 is a schematic diagram of the structure of the hopper assembly in the embodiment of the present application. DETAILED DESCRIPTION

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the specification is for describing particular embodiments only and is not intended to be limiting of the application. The use herein of terms such as "comprise", "comprises", "comprising", "containing", "contains", "contain" or any other variation thereof, is intended to cover a non-exclusive inclusion, such that these terms are used in their normal sense to cover a composition that can include, but is not limited to, an element. The use herein of terms such as "first", "second", "third", etc. is used for distinguishing between similar objects having different properties and not for describing a particular sequential order. The use herein of the terminology "including", "having", "containing" or "encompassing" is used to indicate open-ended sets of elements that do not preclude the addition of additional elements.

[0022] Reference to "an embodiment" or "the embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" or "in another embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily referring to a particular listed embodiment, although they can. Any person skilled in the art will understand that the embodiments described herein with the aid of their common figures can be combined, except where such a combination is not technically in keeping with the state of the art, or would otherwise violate the law of the code of best practices that governs the application.

[0023] In order to make the technical personnel in the technical field better understand the application scheme, the technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings.

[0024] As shown in Figures 1-3 A garbage pyrolysis incinerator, comprising a furnace body 1, a plurality of support frames 2 are arranged at the lower end of the furnace body 1, so that the garbage pyrolysis incinerator can be fixedly installed on a predetermined installation position, for example, it can be fixedly installed on the ground or a table top. A hopper assembly 3 is arranged at the upper end of the furnace body 1, the hopper assembly 3 is used for pouring garbage into the furnace body 1, and the hopper assembly 3 is used for pouring the garbage to be incinerated into the furnace body 1. A heat insulation layer 4 is arranged on the inner side wall of the furnace body 1, the heat insulation layer 4 is made of high-temperature resistant material, the heat insulation layer 4 can reduce heat dissipation through the furnace wall, and maintain a high-temperature environment inside the incinerator. At the same time, the heat insulation layer 4 can also prevent the metal structure outside the furnace body 1 from being directly affected by high temperature, prevent the metal furnace body 1 from being deformed or damaged due to high temperature, and provide a safe working environment for workers.

[0025] The furnace body 1 is sequentially provided with a drying gasification chamber 11, a cracking gasification chamber 12, a carbonization cracking chamber 13 and a combustion chamber 14 from top to bottom, and the side of the drying gasification chamber 11 away from the cracking gasification chamber 12 is communicated with the hopper assembly 3. The furnace body 1 is provided with an ash collecting mechanism 5, which is communicated with the lower end of the combustion chamber 14, and the ash collecting mechanism 5 is used for discharging the ash produced by the garbage incineration. The furnace body 1 is provided with an oxygen supply device 6, a combustible gas injection mechanism 7 and a flue gas circulation mechanism 8, the oxygen supply device 6 is used for injecting oxygen-enriched air into the combustion chamber 14, the combustible gas injection mechanism 7 is used for injecting the combustible gas in the drying gasification chamber 11 into the combustion chamber 14, and the flue gas circulation mechanism 8 is used for prolonging the residence time of the flue gas in the cracking gasification chamber 12, thereby reducing the solid residues in the flue gas.

[0026] It should be noted that the drying gasification chamber 11 and the cracking gasification chamber 12 are both structures that are open at the top and closed at the periphery; and the cracking gasification chamber 12 is a conical structure that is small at the top and large at the bottom. The carbonization cracking chamber 13 and the combustion chamber 14 are both structures that are open at the top and closed at the periphery, and the side walls are composed of porous plates, so that the oxygen supply device 6 can deliver oxygen into the carbonization cracking chamber 13 and the combustion chamber 14.

[0027] The furnace structure is divided into two parts:

[0028] 1. The combustion chamber 14 and the carbonization cracking chamber 13 in the furnace are high-temperature and high-speed combustion spaces, and sufficient oxygen is provided by the oxygen supply mechanism 6 during combustion, so that the combustion is intense and fast.

[0029] 2. The drying gasification chamber 11 and the cracking gasification chamber 12 in the furnace are called cracking combustion chambers, which are closed spaces and cannot be supplied with oxygen, and are always in an oxygen-deficient combustion state, and can only be cracked and gasified into combustible gas. This part of combustible gas will be sucked away by the combustible gas injection mechanism 7 and injected into the lower combustion chamber 14 in the furnace through the pipeline for secondary combustion, so that the incinerator does not need to add auxiliary source materials to increase the temperature in the furnace, and harmful gases such as dioxin can be completely decomposed and cannot escape.

[0030] When the cracking incinerator is working, garbage is incinerated in the furnace, so that the temperature in the furnace can reach thousands of degrees Celsius or even higher. At this time, the temperature of the drying gasification chamber 11 can also reach several hundred degrees Celsius, but this place is closed and oxygen-free. The moisture in the garbage coming from the hopper assembly 3 will evaporate rapidly at this temperature and crack into gas together with some substances in the garbage. The garbage continues to fall into the cracking gasification chamber 12, which is still closed and oxygen-free, and the garbage cannot burn normally. The garbage continues to fall into the carbonization cracking chamber 13 and the combustion chamber 14, and the side walls of the carbonization cracking chamber 13 and the combustion chamber 14 are perforated, and the temperature is high. Oxygen is supplied by the oxygen supply device 6, so that the carbonization cracking chamber 13 and the combustion chamber 14 are supplied with sufficient oxygen, and the garbage can be fully burned; and finally becomes ash-like ash and falls into the ash collecting mechanism 5, which is uniformly collected and treated by the ash collecting mechanism 5.

[0031] In the garbage incineration process, the combustible gas injection mechanism 7 can extract the combustible gas generated in the garbage cracking process from the drying gasification chamber 11 into the combustion chamber 14 for combustion, which plays a role of combustion support, so that the garbage can be fully combusted in the combustion chamber 14; in addition, through the flue gas circulation mechanism 8, the residence time of the flue gas in the furnace body 1 can be improved, so that the residual combustible gas in the flue gas can be fully combusted. By recycling the flue gas and injecting the combustible gas for combustion, the combustible residue and combustible gas in the flue gas can be reduced, thereby reducing the secondary pollution of the discharged flue gas to the environment; and the problem of fire caused by the contact of the combustible gas with air can be avoided, thereby improving the safety of the operation.

[0032] In order to facilitate oxygen supply, in the embodiment, oxygen supply pipes 62 are arranged on the four peripheral side walls of the furnace body 1 at positions corresponding to the combustion chamber 14. The oxygen supply device 6 comprises an oxygen supply machine 61 fixedly installed on the outer side wall of the furnace body 1, and the output end of the oxygen supply machine 61 is in communication with the oxygen supply pipe 62. The oxygen supply machine 61 can extract air and increase the oxygen content in the air, and then deliver the oxygen-enriched air to the oxygen supply pipe 62, so that the oxygen-enriched air flows into the combustion chamber 14 through the oxygen supply pipe 62, so that an oxygen-enriched environment is formed in the combustion chamber 14, which can improve the garbage combustion efficiency and make the garbage fully combusted in the combustion chamber 14.

[0033] As described above, when the garbage falls into the drying gasification chamber 11, the garbage cannot be normally combusted. However, due to high temperature, some substances in the garbage can be gasified into combustible gas. In order to fully utilize this part of combustible gas, the combustible gas injection mechanism 7 is arranged on the furnace body 1.

[0034] Specifically, the combustible gas injection mechanism 7 comprises a first air extractor 71 fixedly installed on the outer side wall of the furnace body 1, the input end of the first air extractor 71 is in communication with the drying gasification chamber 11, and the four peripheral inner side walls of the furnace body 1 are respectively provided with injection gas pipes 72 at positions corresponding to the combustion chamber 14, the output end of the first air extractor 71 is in communication with the injection gas pipe 72, and the first air extractor 71 is used to extract the combustible gas in the drying gasification chamber 11 into the combustion chamber 14. In the operation process, after the garbage is poured into the drying gasification chamber 11, some combustible substances in the garbage will be gasified into combustible gas due to high temperature; the first air extractor 71 will extract these combustible gases, and then deliver them to the injection gas pipe 72 through the pipeline, and then inject them into the combustion chamber 14 through the injection gas pipe 72; by supplementing the combustible gas in the combustion chamber 14, the combustion temperature of the combustion chamber 14 can be improved, so that the garbage can be fully combusted in the combustion chamber 14, and the solid residue can be reduced.

[0035] In order to further improve the incineration effect, a heat reflecting cover 9 is installed in the furnace body 1, the heat reflecting cover 9 is arranged between the drying gasification chamber 11 and the cracking gasification chamber 12, and a plurality of small holes for the flue gas to pass through are arranged on the heat reflecting cover 9. The heat reflecting cover 9 can keep the temperature in the furnace body 1, and reduce heat loss; during operation, the light flue gas in the furnace passes through the small holes on the heat reflecting cover 9, while the heavy smoke is blocked and falls into the furnace to continue burning, which increases the residence time of the flue gas in the furnace and further decomposes the harmful substances in the flue gas. At the same time, when the heat (infrared rays) generated by the waste combustion is irradiated upward on the heat reflecting cover 9, the heat reflecting cover 9 will reflect it downward, reducing the loss of heat and increasing the temperature in the furnace.

[0036] The flue gas circulating mechanism 8 includes a second air extractor 81 fixedly installed on the outer side wall of the furnace body 1, and an air extraction pipe 82 and an air exhaust pipe 83 are arranged on the inner side wall of the furnace body 1 at positions corresponding to the cracking gasification chamber 12, the air extraction pipe 82 is located above the air exhaust pipe 83, the air extraction pipe 82 is connected with the input end of the second air extractor 81, and the air exhaust pipe 83 is connected with the output end of the second air extractor 81. By controlling the operation of the second air extractor 81, the flue gas in the upper part of the cracking gasification chamber 12 can be extracted to the lower part of the cracking gasification chamber 12, and then sent into the furnace body 1 through the air exhaust pipe 83, so as to prolong the residence time of the flue gas in the furnace body 1; and the harmful substances in the flue gas can be more fully decomposed by the high temperature in the furnace.

[0037] As shown in Figure 2 , Figure 3 , the hopper assembly 3 includes a hollow hopper body 31, the hopper body 31 is fixedly connected with the furnace body 1, one end of the hopper body 31 is communicated with the drying gasification chamber 11, and the other end is provided with an upper cover 32 for covering the open end of the hopper body 31. One end of the upper cover 32 is hinged to the hopper body 31, and an opening and closing mechanism is arranged on the hopper body 31, the output end of the opening and closing mechanism is connected with the upper cover 32, and the opening and closing mechanism is used to drive the upper cover 32 to rotate and move along the hinged end, so as to open or close the upper cover 32 by the opening and closing mechanism.

[0038] A sealing plate 33 is arranged in the hopper body 31, one end of the sealing plate 33 is hinged to the inner side wall of the hopper body 31, and the sealing plate 33 can be sealingly abutted to the inner side wall of the hopper body 31; by arranging the sealing plate 33 to sealingly abut to the hopper body 31, the sealing property of the hopper body 31 can be improved, the overflow of flue gas from the hopper body 31 during operation can be prevented, the safety of processing can be ensured, and secondary pollution can be reduced. An opening mechanism is arranged on the hopper body 31, the output end of the opening mechanism is connected with the sealing plate 33, and the opening mechanism is used to drive the sealing plate 33 to rotate and swing along the hinged end, so as to open or block the inner cavity of the hopper body 31.

[0039] Before dumping the garbage, the upper cover 32 is opened by the opening and closing mechanism, and the inner cavity of the hopper body 31 is opened by the opening mechanism driving the sealing plate 33; then the garbage is dumped into the hopper body 31; after the garbage is dumped, the sealing plate 33 is controlled to be turned down to block the inner cavity of the hopper body 31; then the upper cover 32 is turned down by the opening and closing mechanism to cover the hopper body 31.

[0040] Specifically, the opening mechanism includes a pulling assembly and a pushing assembly, which are respectively connected with the hopper body 31, and the output ends of the pulling assembly and the pushing assembly are respectively connected with the sealing plate 33. The pulling assembly is used to pull the sealing plate 33 to turn up along the hinged end, and the pushing assembly is used to push the sealing plate 33 to turn down along the hinged end. When it is needed to dump the garbage, the sealing plate 33 is turned up along the hinged end by the pulling assembly, so as to open the inner cavity of the hopper body 31, and the garbage is dumped into the furnace body 1 through the hopper body 31; after the garbage is dumped, the sealing plate 33 is turned down along the hinged end by the pushing assembly, so that the sealing plate 33 can block the inner cavity of the hopper body 31.

[0041] In this embodiment, the pulling assembly includes a pulling motor 34, the hopper body 31 is fixedly provided with a mounting frame 35, the mounting frame 35 is provided with a rotatable driving wheel 36, a steel cable 37 is sleeved on the driving wheel 36, and the other end of the steel cable 37 is connected with the sealing plate 33. The pulling motor 34 is fixedly installed on the hopper body 31, and the output end of the pulling motor 34 is connected with the driving wheel 36. When it is needed to dump the garbage, the pulling motor 34 is controlled to work, the driving wheel 36 is driven to rotate on the mounting frame 35, the driving wheel 36 pulls the steel cable 37 to be wound on the driving wheel 36, and then the sealing plate 33 is pulled to turn up along the hinged end through the steel cable 37, so as to open the inner cavity of the hopper body 31.

[0042] The pushing assembly includes a pushing cylinder 38, which is fixedly installed on the outer side wall of the hopper body 31, the output end of the pushing cylinder 38 can extend into the inner cavity of the hopper body 31, and the output end of the pushing cylinder 38 can abut against the upper end face of the sealing plate 33. Under normal circumstances, the pushing cylinder 38 is in a retracted state; after the garbage is dumped, the sealing plate 33 is turned up to open, the pushing cylinder 38 is then controlled to work, the output end of the pushing cylinder 38 extends until the output end of the pushing cylinder 38 abuts against the upper end face of the sealing plate 33, and the sealing plate 33 is pushed to turn down along the hinged end; when the opening angle of the sealing plate 33 is less than 90°, the sealing plate 33 will automatically turn down under the action of gravity until it blocks the inner cavity of the hopper body 31. Then the pushing cylinder 38 is reset to be retracted to the initial state.

[0043] In order to improve the sealing performance of the sealing plate 33 and the hopper body 31, a sealing strip 39 is arranged on the inner wall of the hopper body 31 at a position corresponding to the sealing plate 33. When the sealing plate 33 is closed, the sealing plate 33 is in sealing abutment with the sealing strip 39. Through the cooperation of the sealing plate 33 and the sealing strip 39, the sealing plate 33 can be in sealing abutment with the hopper body 31, thereby improving the sealing performance of the sealing plate 33 and the hopper body 31, preventing smoke overflow, and improving the safety of the operation.

[0044] The opening and closing mechanism includes an opening and closing cylinder 310 hinged to the hopper body 31, and the output end of the opening and closing cylinder 310 is hinged to the upper cover 32. In the initial state, the upper cover 32 is closed with the hopper body 31, and the opening and closing cylinder 310 is in a retracted state. When it is necessary to dump garbage, the opening and closing cylinder 310 is extended to drive the upper cover 32 to flip upward along the hinge end, thereby opening the upper cover 32 for dumping garbage. After the garbage is dumped, the opening and closing cylinder 310 is controlled to retract, so that the upper cover 32 flips downward along the hinge end until the upper cover 32 is closed with the hopper body 31.

[0045] In the embodiment, the number of opening and closing cylinders 310 is two, and the two opening and closing cylinders 310 are symmetrically distributed on the left and right sides of the hopper body 31. By controlling the two opening and closing cylinders 310 to work simultaneously, the upper cover 32 can be more stably opened, and the opening and closing of the upper cover 32 is more stable, thereby improving the stability of the work. In other embodiments, the number of opening and closing cylinders 310 can also be any other number.

[0046] As shown in Figure 2 The ash collecting mechanism 5 includes a conical ash collecting hopper 51, which is sealingly connected to the lower end of the furnace body 1. The ash remaining in the garbage after combustion in the carbonization and cracking chamber 13 and the combustion chamber 14 will automatically fall onto the conical ash collecting hopper 51. The lower end of the conical ash collecting hopper 51 is provided with an ash discharging assembly, which is used to crush the ash and also can prolong the residence time of the ash in the furnace body 1, so that the ash is completely extinguished before being discharged.

[0047] Specifically, the ash discharge assembly includes an ash discharge pipe 52 in communication with the conical ash collecting hopper 51, the ash discharge pipe 52 is obliquely arranged below the conical ash collecting hopper 51, and the height of one end of the ash discharge pipe 52 in communication with the conical ash collecting hopper 51 is lower than the height of the other end. A spiral blade shaft 53 is arranged in the ash discharge pipe 52, an ash discharge driving assembly 54 and an ash discharge port 55 are arranged on the ash discharge pipe 52, and the output end of the ash discharge driving assembly 54 is connected with the spiral blade shaft 53 for driving the spiral blade shaft 53 to rotate. During the ash discharge process, the spiral blade shaft 53 can be driven to rotate by controlling the ash discharge driving assembly 54 to work, and the lime can be broken by the spiral blades on the spiral blade shaft 53, and at the same time, the lime can be pushed to the ash discharge port 55 and finally dropped from the ash discharge port 55 for collection. The lime is broken by the spiral blade shaft 53, and stays on the ash discharge pipe 52 for a while, so that the lime can be completely extinguished, and the situation that the lime discharged from the ash discharge port 55 is still burning can be reduced.

[0048] In the embodiment, the ash discharge driving assembly 54 is a motor driving device; in other embodiments, other structures or devices capable of driving the spiral blade shaft 53 to rotate can also be used.

[0049] An observation window is arranged on the side wall of the furnace body 1, and a closing door 10 is arranged on the observation window; the closing door 10 is in openable and closable connection with the furnace body 1, and is used for closing or opening the observation window. During use, the user can open the closing door 10 to observe the incineration condition in the furnace body 1, so as to timely understand the incineration progress of the garbage.

[0050] The garbage pyrolysis incinerator can inject oxygen-rich air into the furnace body 1 through the oxygen supply device 6 arranged on the furnace body 1, so that the garbage in the furnace body 1 can be burned more fully, and the combustion efficiency is improved. The combustible gas in the dry gasification chamber 11 can be extracted into the combustion chamber 14 for combustion through the combustible gas injection mechanism 7 arranged on the furnace body 1, so that the combustion temperature can be improved, the combustion efficiency can be improved, and the garbage can be burned more fully in the combustion chamber 14. The smoke circulation mechanism 8 and the heat reflecting cover 9 are arranged, the residence time of the smoke in the furnace body 1 can be prolonged, the garbage can be burned more fully, the solid residues in the smoke can be reduced, the smoke emission of the garbage incineration can be reduced, and the environmental protection performance is improved. The sealing plate 33 is arranged on the hopper body 31, the sealing property of the hopper can be improved, the smoke overflow from the hopper body 31 can be reduced, and the secondary pollution of the garbage incineration to the environment is reduced.

[0051] The above specific embodiment is a preferred embodiment of the present application, and the specific implementation range of the present application is not limited thereto. The scope of the present application includes but is not limited to the specific embodiment, and any equivalent changes made according to the present application are within the protection scope of the present application.

Claims

1. A waste pyrolysis incinerator characterized by: The application relates to a waste incinerator, which comprises a furnace body, a hopper assembly arranged at the upper end of the furnace body, a drying gasification chamber, a cracking gasification chamber, a carbonization cracking chamber and a combustion chamber arranged in the furnace body from top to bottom, an ash collecting mechanism arranged on the furnace body and communicated with the lower end of the combustion chamber, and the ash collecting mechanism is used for discharging the ash generated by waste incineration. An oxygen supply device, a combustible gas injection mechanism and a flue gas circulation mechanism are arranged on the furnace body, the oxygen supply device is used for injecting oxygen-rich air into the combustion chamber, the combustible gas injection mechanism is used for injecting the combustible gas in the drying gasification chamber into the combustion chamber, and the flue gas circulation mechanism is used for prolonging the residence time of flue gas in the cracking gasification chamber.

2. The waste pyrolisis incinerator according to claim 1, characterized in that: The oxygen supply device comprises an oxygen supply machine, the oxygen supply machine is connected with the furnace body, oxygen supply pipes are arranged on the inner side walls of the four sides of the furnace body and correspond to the positions of the combustion chamber, and the output end of the oxygen supply machine is connected with the oxygen supply pipes.

3. The waste pyrolisis incinerator according to claim 1, characterized in that: The combustible gas injection mechanism comprises a first air blower, the first air blower is connected with the furnace body, the input end of the first air blower is communicated with the drying gasification chamber, injection gas pipes are arranged on the inner side walls of the four sides of the furnace body and correspond to the positions of the combustion chamber, and the output end of the first air blower is communicated with the injection gas pipes.

4. The waste pyrolisis incinerator according to claim 1, characterized in that: The flue gas circulation mechanism comprises a second air blower, smoke suction pipes and smoke exhaust pipes are arranged on the inner side walls of the four sides of the furnace body and correspond to the positions of the cracking gasification chamber, the smoke suction pipes are located above the smoke exhaust pipes, the smoke suction pipes are connected with the input end of the second air blower, and the smoke exhaust pipes are connected with the output end of the second air blower.

5. The waste pyrolisis incinerator according to claim 1, characterized in that: A heat reflection cover is arranged in the furnace body, the heat reflection cover is arranged between the drying gasification chamber and the cracking gasification chamber, and a plurality of small holes for flue gas to pass through are arranged on the heat reflection cover.

6. The waste pyrolisis incinerator according to any of claims 1-5, characterized in that: The hopper assembly comprises a hollow hopper body, the hopper body is connected with the furnace body, one end of the hopper body is communicated with the drying gasification chamber, the other end of the hopper body is provided with an upper cover, one end of the upper cover is hinged to the hopper body, an opening and closing mechanism is arranged on the hopper body, the output end of the opening and closing mechanism is connected with the upper cover, and the opening and closing mechanism is used for driving the upper cover to rotate and move along the hinged end. A sealing plate is arranged in the hopper body, one end of the sealing plate is hinged to the inner side wall of the hopper body, the sealing plate can be sealed and abutted to the inner side wall of the hopper body, an opening cover mechanism is arranged on the hopper body, the output end of the opening cover mechanism is connected with the sealing plate, the opening cover mechanism is used for driving the sealing plate to rotate and swing along the hinged end, so as to open or block the inner cavity of the hopper body.

7. The waste pyrolisis incinerator according to claim 6, characterized in that: The opening cover mechanism comprises a pulling assembly and a pushing assembly, the pulling assembly and the pushing assembly are connected with the hopper body respectively, the output ends of the pulling assembly and the pushing assembly are connected with the sealing plate respectively, the pulling assembly is used for pulling the sealing plate to rotate upward along the hinged end, and the pushing assembly is used for pushing the sealing plate to rotate downward along the hinged end.

8. The waste pyrolisis incinerator according to claim 6, characterized in that: The sealing strip is arranged on the inner side wall of the hopper body at a position corresponding to the sealing plate.

9. The waste pyrolisis incinerator according to any one of claims 1-5, characterized in that: The ash collecting mechanism comprises a conical ash collecting hopper connected with the lower end of the furnace body, and the lower end of the conical ash collecting hopper is provided with an ash discharging assembly. The ash discharging assembly comprises an ash discharging pipe which is arranged obliquely below the conical ash collecting hopper and is in communication with the conical ash collecting hopper, and the ash discharging pipe is provided with a spiral blade shaft, an ash discharging driving assembly and an ash discharging port.

10. The waste pyrolisis incinerator according to any one of claims 1-5, characterized in that: The inner side wall of the furnace body is provided with a heat insulation layer.

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