CN111909712A - Low-temperature microwave cracking furnace - Google Patents
Low-temperature microwave cracking furnace Download PDFInfo
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- CN111909712A CN111909712A CN202010779925.6A CN202010779925A CN111909712A CN 111909712 A CN111909712 A CN 111909712A CN 202010779925 A CN202010779925 A CN 202010779925A CN 111909712 A CN111909712 A CN 111909712A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
Abstract
The invention discloses a low-temperature microwave cracking furnace, which comprises a furnace body and a microwave emission source, wherein a plurality of grid plates are arranged in the furnace body, the furnace body is divided into a plurality of processing chambers through the grid plates, the processing chambers sequentially comprise a preheating chamber, an evaporation chamber, a cracking chamber, a carbonization chamber and a collection chamber from top to bottom, a reducing gas inlet is arranged on one side of the bottom of the furnace body, a reducing gas outlet and a cracking gas outlet are arranged on the top wall of the furnace body, a feeding pipe is also arranged on one side of the top wall of the furnace body, a feeding hopper communicated with the feeding pipe is arranged on one side of the feeding pipe, and a feeding spiral blade rod is arranged in the feeding pipe. The microwave pyrolysis furnace of this scheme can realize the pressurization input and the pressurization discharge of material, can not cause blocking phenomenon, in the processing procedure, utilizes the arch in the agitator to scrape the clearance of scraping to the upper and lower both sides of grid plate, avoids the material to block up the mesh of grid plate, ensures that the device can smoothly the efficient operation.
Description
Technical Field
The invention relates to the technical field of garbage treatment, in particular to a low-temperature microwave cracking furnace.
Background
The existing garbage treatment technologies at home and abroad mainly comprise a landfill method, a composting method and a burning method, and each technology has certain application limitation secondary pollution risk, and the recovery benefit is not obvious due to relatively incomplete resource recovery rate in the treatment process. The garbage cracking technology becomes one of the main development directions of the garbage treatment technology due to the characteristics of high resource level and small secondary pollution. In the prior art, a mode of heating garbage by using a low-temperature microwave cracking furnace exists, the heating temperature is controlled between 200 ℃ and 300 ℃, open fire is avoided, combustion reaction is avoided, dioxin is not generated, and the method can be realized in a fixed waveband. The low-temperature microwave cracking furnace can be generally used at the temperature of-40 ℃, and the total amount of materials can be reduced by 98 percent when the furnace is heated for 8 hours.
Through search, Chinese patent No. CN101811129B discloses a continuous type reducing atmosphere microwave heating low-temperature cracking furnace structure for municipal solid waste. The purposes of improving the cracking efficiency, improving the resource utilization level of the garbage cracking recovered substances and harmlessly treating the garbage cracking recovered substances are achieved. The low-temperature cracking furnace consists of a feeding and garbage gas replacement mechanism, a garbage preheating and cracking steam output bin, a garbage moisture evaporation and warming bin, a garbage main cracking bin, a cracking material carbonization bin, a carbonization material collection bin and a carbonization material collection mechanism, wherein the feeding and garbage gas replacement mechanism is arranged on a main machine barrel in a main machine body part.
The cracking furnace in the prior art still has the following disadvantages: the cracking furnace summarizes the material adding and later discharging processes, and both the situations of material blockage exist; in addition, in the process of processing, the garbage materials move from top to bottom in the main machine body, the defects of uneven stirring and blockage of the partition plate by the materials also exist, so that the operation of the cracking furnace is unsmooth, and the efficiency is low, thereby providing the low-temperature microwave cracking furnace.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a low-temperature microwave cracking furnace.
In order to achieve the purpose, the invention adopts the following technical scheme:
low temperature microwave pyrolysis furnace, including furnace body, microwave emission source, furnace body internally mounted has a plurality of grid plates, divide into a plurality of process chambers through the grid plate in the furnace body, and a plurality of process chambers are from last to being preheating chamber, evaporating chamber, cracking chamber, carbonization room and collection room down in proper order, the import of reducing gas is installed to one side of furnace body bottom, install reducing gas export and pyrolysis steam export on the roof of furnace body, the filling tube is still installed to one side of furnace body roof, the loading hopper rather than the intercommunication is installed to one side of filling tube, install feeding spiral blade pole in the filling tube, the top of feeding spiral blade pole extends to the upside of filling tube and installs driven pulley, the hopper is installed out to the bottom of furnace body, the discharging pipe rather than the intercommunication is installed to the bottom of going out the hopper, install row material spiral blade pole in the discharging tube, one end of the discharging spiral blade rod extends to the inner side of the discharging pipe and is provided with a driven bevel gear, a motor is arranged on the lower side of the furnace body, a main shaft is arranged at the driving end of the motor, a driving bevel gear meshed with the driven bevel gear is arranged at the bottom end of the main shaft, the main shaft extends into the furnace body and penetrates through each grid plate respectively, the top end of the main shaft extends to the upper side of the furnace body and is provided with a driving belt pulley, the driving belt pulley and the driven belt pulley are in belt transmission, and a plurality of stirring devices respectively positioned in the preheating chamber, the evaporation chamber, the cracking chamber, the carbonization chamber and the collecting chamber are arranged on the side;
every agitating unit all includes a plurality of stirring framves, every the stirring frame all includes two last curb plate and the lower side plate that are parallel to each other, still including installing a plurality of connecting rods between last curb plate and lower side plate, all be fixed with a plurality of archs on the diapire of the roof of last curb plate and lower side plate and scrape the head, be located on the last curb plate top wall the arch is scraped the diapire contact of head and grid plate, is located on the lower side plate bottom wall the arch is scraped the head and is contacted with the roof of grid plate.
Further, the reducing gas inlet is arranged at the bottom of the furnace body and is far away from one side of the discharging hopper.
Further, the reducing gas outlet and the pyrolysis gas outlet are arranged on the top wall of the furnace body and on one side far away from the feeding pipe.
Further, a cover is arranged at the top end of the loading hopper, and one end, close to the loading pipe, of the cover is hinged with the loading hopper.
Further, a handle is arranged on one side, away from the charging pipe, of the top wall of the cover.
Further, the microwave emission source is installed at the outer side of the furnace body and respectively corresponds to the evaporation chamber, the cracking chamber and the carbonization chamber.
Furthermore, the symmetrical parts of the microwave emission sources are arranged around the evaporation chamber, the cracking chamber and the carbonization chamber, and the number of the microwave emission sources is two.
Further, the motor is fixed with the ground through a motor mounting frame.
Further, a plurality of pillars are installed at the bottom end of the furnace body.
Compared with the prior art, the invention has the beneficial effects that:
the microwave pyrolysis furnace of this scheme adopts the mode of microwave heating to heat the rubbish material in the furnace body, the pressurization input of material and the pressurization discharge in later stage can be realized to whole furnace body, can not cause blocking phenomenon, simultaneously in the heating process, through the epaxial agitating unit of motor drive, every agitator through agitating unit carries out the stirring of material, it is more even to heat, utilize the top plate in the agitator simultaneously, the clearance is scraped to the upper and lower both sides of grid plate in the furnace body to protruding scraping head on the bottom plate, avoid the material to block up the mesh of grid plate, ensure that the device can be smooth and easy, the efficient operation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic view of the overall structure of a low-temperature microwave cracking furnace according to the present invention;
FIG. 2 is a sectional view of a low temperature microwave pyrolysis furnace according to the present invention;
FIG. 3 is a front view of the agitator frame of FIG. 2;
FIG. 4 is a top view of the agitator frame and spindle;
fig. 5 is an enlarged view of a portion a of fig. 1.
In the figure: 1 furnace body, 101 preheating chamber, 102 evaporating chamber, 103 cracking chamber, 104 carbonizing chamber, 105 collecting chamber, 2 microwave emission source, 3 grid plate, 4 charging hopper, 5 charging pipe, 6 discharging hopper, 7 discharging pipe, 8 motor, 9 main shaft, 10 reducing gas inlet, 11 reducing gas outlet, 12 cracking gas outlet, 13 stirring frame, 1301 upper side plate, 1302 lower side plate, 1303 connecting rod, 1304 protruding scraping head, 14 discharging spiral blade rod, 15 driving bevel gear, 16 driven bevel gear, 17 feeding spiral blade rod, 18 driving pulley, 19 driven pulley, 20 cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, the low temperature microwave cracking furnace comprises a furnace body 1 and a microwave emission source 2, wherein a plurality of pillars are arranged at the bottom end of the furnace body 1. The specific operation principle of the microwave radiation source 2 is the prior art and is already used and disclosed in the prior patent document CN101811129B, so the present solution will not be described in detail.
The furnace body 1 is internally provided with a plurality of grid plates 3, the furnace body 1 is internally divided into a plurality of processing chambers through the grid plates 3, the plurality of processing chambers are sequentially a preheating chamber 101, an evaporation chamber 102, a cracking chamber 103, a carbonization chamber 104 and a collection chamber 105 from top to bottom, the specific functions of the preheating chamber 101, the evaporation chamber 102, the cracking chamber 103, the carbonization chamber 104 and the collection chamber 105 are correspondingly disclosed in the prior patent document CN101811129B, and the above processing chambers in the scheme have the same functions with the processing chambers, so the detailed description is omitted.
The reduction gas inlet 10 is arranged on one side of the bottom of the furnace body 1, the reduction gas outlet 11 and the pyrolysis gas outlet 12 are arranged on the top wall of the furnace body 1, and the specific functions and the installation positions of the reduction gas inlet 10, the reduction gas outlet 11 and the pyrolysis gas outlet 12 are also described in the prior patent document CN101811129B, so that the detailed description of the scheme is omitted.
A feed pipe 5 is further installed on one side of the top wall of the furnace body 1, a feed hopper 4 communicated with the feed pipe 5 is installed on one side of the feed pipe 5, a feed spiral blade rod 17 is installed in the feed pipe 5, the top end of the feed spiral blade rod 17 extends to the upper side of the feed pipe 5 and is provided with a driven pulley 19, a discharge hopper 6 is installed at the bottom end of the furnace body 1, a discharge pipe 7 communicated with the discharge pipe 6 is installed at the bottom end of the discharge hopper 6, a discharge spiral blade rod 14 is installed in the discharge pipe 7, one end of the discharge spiral blade rod 14 extends to the inner side of the discharge pipe 7 and is provided with a driven bevel gear 16, a motor 8 is installed at the lower side of the furnace body 1, a main shaft 9 is installed at the driving end of the motor 8, a driving bevel gear 15 meshed with the driven bevel gear 16 is installed at the bottom end of the main shaft 9, the main shaft 9, the driving pulley 18 and the driven pulley 19 are in belt transmission, and a plurality of stirring devices which are respectively positioned in the preheating chamber 101, the evaporation chamber 102, the cracking chamber 103, the carbonization chamber 104 and the collection chamber 105 are arranged on the side wall of the main shaft 9;
each stirring device comprises a plurality of stirring frames 13, each stirring frame 13 comprises an upper side plate 1301 and a lower side plate 1302 which are parallel to each other, and further comprises a plurality of connecting rods 1303 arranged between the upper side plate 1301 and the lower side plate 1302, a plurality of protruding scraping heads 1304 are fixed on the top wall of the upper side plate 1301 and the bottom wall of the lower side plate 1302, the protruding scraping heads 1304 positioned on the top wall of the upper side plate 1301 are in contact with the bottom wall of the grid plate 3, and the protruding scraping heads 1304 positioned on the bottom wall of the lower side plate 1302 are in contact with the top wall of the grid plate 3.
The reducing gas inlet 10 is arranged at the bottom of the furnace body 1 and is far away from one side of the discharge hopper 6.
The reducing gas outlet 11 and the pyrolysis gas outlet 12 are installed on the top wall of the furnace body 1 and on the side away from the charging pipe 5.
A lid 20 is mounted to the top end of the hopper 4, the lid 20 being hingedly connected to the end of the hopper adjacent the hopper tube 5.
A handle is mounted on the top wall of the lid 20 on the side remote from the filling tube 5.
The microwave emitter 2 is installed outside the furnace body 1, and corresponds to the evaporation chamber 102, the cracking chamber 103, and the carbonization chamber 104, respectively.
The symmetrical parts of the microwave emission sources 2 are arranged around the evaporation chamber 102, the cracking chamber 103 and the carbonization chamber 104, and the number of the microwave emission sources 2 is two.
The motor 8 is fixed with the ground through a motor mounting frame.
The working principle and the using process of the invention are as follows: opening the cover 20, enabling garbage materials to enter the feeding pipe 5 from the feeding hopper 4, enabling the motor 8 to drive the main shaft 9 to rotate, enabling the main shaft 9 to drive the preheating chamber 101, the evaporation chamber 102, the cracking chamber 103, the carbonization chamber 104 and the stirring frame 13 in the collection chamber 105 to rotate, enabling the bottom end of the main shaft 9 to be meshed with the driving bevel gear 15 to drive the driven bevel gear 16, enabling the discharging spiral blade rod 14 to rotate in the discharging pipe 7, enabling an order of the main shaft 9 to further drive the driven pulley 19 to rotate through the driving pulley 18 and a belt, enabling the feeding spiral blade rod 17 to rotate in the feeding pipe 5, enabling the feeding spiral blade rod 17 to achieve pressurized downward conveying when the materials enter the feeding pipe 5, and avoiding blockage and accumulation in the feeding pipe 5 and the feeding hopper 4;
the material firstly enters the preheating chamber 101 through the feeding pipe 5, is preheated in the preheating chamber 101, enters the evaporation chamber 102 through the grid plate 3 under the stirring of the stirring frame 13, enters the cracking chamber 103 through the grid plate 3 under the stirring of the stirring frame 13, subsequently sequentially enters the cracking chamber 103, the carbonization chamber 104 and finally enters the collection chamber 105, in the process, the evaporation chamber 102, the cracking chamber 103 and the carbonization chamber 104 are internally heated through the arranged microwave emission source 2, the material is carbonized, the carbonized material enters the discharge hopper 6 from one side of the collection chamber 105 and finally enters the discharge pipe 7, and is pressurized and discharged by the discharge spiral blade rod 14 in the discharge pipe 7, so that the accumulation and blockage are avoided.
When the stirring frame 13 rotates, the bottom wall of the grid plate 3 is cleaned by the protruding scraping head 1304 on the upper side of the upper side plate 1301, the top wall of the grid plate 3 is cleaned by the protruding scraping head 1304 on the lower side plate 1302, the garbage on the upper side wall of the preheating chamber 101 can be cleaned by the protruding scraping head 1304 on the upper side of the upper side plate 1301 in the preheating chamber 101, and the garbage on the lower side wall of the collecting chamber 105 can be cleaned by the protruding scraping head 1304 on the lower side of the lower side plate 1302 in the collecting chamber 105.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. Low temperature microwave pyrolysis furnace, including furnace body (1), microwave emission source (2), its characterized in that, furnace body (1) internally mounted has a plurality of waffles (3), divide into a plurality of process chambers through waffles (3) in furnace body (1), and a plurality of process chambers from last to being preheating chamber (101), evaporating chamber (102), cracking chamber (103), carbonization chamber (104) and collecting chamber (105) down in proper order, reducing gas import (10) are installed to one side of furnace body (1) bottom, install reducing gas export (11) and pyrolysis steam export (12) on the roof of furnace body (1), filling tube (5) are still installed to one side of furnace body (1) roof, loading hopper (4) rather than the intercommunication are installed to one side of filling tube (5), install feeding spiral blade pole (17) in filling tube (5), the top of feeding spiral blade pole (17) extends to the upside of filling tube (5) and installs driven belt (5) Wheel (19), hopper (6) are installed to the bottom of furnace body (1), discharging pipe (7) rather than the intercommunication is installed to the bottom of discharging hopper (6), install in discharging pipe (7) and arrange material spiral blade pole (14), the one end of arranging material spiral blade pole (14) extends to the inboard of discharging pipe (7) and installs driven bevel gear (16), motor (8) are installed to the downside of furnace body (1), main shaft (9) are installed to the drive end of motor (8), initiative bevel gear (15) with driven bevel gear (16) meshing are installed to the bottom of main shaft (9), main shaft (9) extend to in furnace body (1) and run through every grid plate (3) respectively, the top of main shaft (9) extends to the upside of furnace body (1) and installs driving pulley (18), driving pulley (18) pass through belt drive with driven pulley (19), a plurality of stirring devices which are respectively positioned in the preheating chamber (101), the evaporation chamber (102), the cracking chamber (103), the carbonization chamber (104) and the collection chamber (105) are arranged on the side wall of the main shaft (9);
each agitating unit all includes a plurality of stirring framves (13), and each stirring frame (13) all includes two curb plate (1301) and lower plate (1302) that are parallel to each other, still includes a plurality of connecting rods (1303) of installing between curb plate (1301) and lower plate (1302), all be fixed with a plurality of archs on the diapire of curb plate (1301) and lower plate (1302) and scrape head (1304), be located curb plate (1301) roof the arch is scraped head (1304) and is contacted with the diapire of latticed board (3), is located curb plate (1302) diapire down protruding and is scraped head (1304) and the roof contact of latticed board (3).
2. A low temperature microwave pyrolysis furnace according to claim 1, characterized in that the reducing gas inlet (10) is installed at the bottom of the furnace body (1) and at a side far from the discharge hopper (6).
3. A low temperature microwave pyrolysis furnace according to claim 1, characterized in that the reducing gas outlet (11) and the pyrolysis gas outlet (12) are installed on the top wall of the furnace body (1) and on the side away from the feed pipe (5).
4. A microwave pyrolysis furnace according to claim 1, wherein the top end of the hopper (4) is provided with a cover (20), and the end of the cover (20) close to the feed pipe (5) is hinged with the cover.
5. A microwave pyrolysis furnace according to claim 4, characterized in that a handle is mounted on the top wall of the lid (20) on the side remote from the feed tube (5).
6. The microwave pyrolysis furnace according to claim 1, wherein the microwave emission source (2) is installed outside the furnace body (1) and corresponds to the evaporation chamber (102), the pyrolysis chamber (103), and the carbonization chamber (104), respectively.
7. The microwave pyrolysis furnace according to claim 6, wherein the microwave emission sources (2) are symmetrically arranged around the evaporation chamber (102), the pyrolysis chamber (103) and the carbonization chamber (104), and the number of the microwave emission sources (2) is two.
8. A cryogenic microwave pyrolysis furnace according to claim 1, wherein the motor (8) is fixed to the ground by a motor mount.
9. A low temperature microwave pyrolysis furnace according to claim 1, characterized in that a plurality of pillars are installed at the bottom end of the furnace body (1).
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| CN202010779925.6A CN111909712B (en) | 2020-08-05 | 2020-08-05 | Low-temperature microwave cracking furnace |
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| JPH02228391A (en) * | 1989-03-02 | 1990-09-11 | Nkk Corp | Device for monitoring coke guide |
| CN101811129A (en) * | 2009-12-11 | 2010-08-25 | 深圳市兖能投资管理有限公司 | Vertical continuous microwave heating low-temperature cracking furnace for garbage |
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