CN107384447A - A kind of feeding screw of plastic garbage pyrolysis furnace - Google Patents

Abstract

A kind of feeding screw of plastic garbage pyrolysis furnace, it is circumferentially disposed multiple discharging openings on the excircle of the feeder outer cover of tubular structure, discharging opening is positioned close to one end of hush panel, the lower end of described charging axle is flexibly connected by bearing with hush panel, one end of the close hush panel of described charging axle is provided with multiple strippers, multiple strippers are arranged centered on charging axle in swirl shape, the discharging opening on the corresponding feeder outer cover in space between two adjacent strippers, hush panel supports the lower end of charging axle, the upper end of charging axle is connected with upper cover by bearing, realize the support up and down of charging axle, can effectively solve the vibration problems in the charging axle rotary course that existing suspention is set, avoid the friction between charging axle and feeder outer cover, ensure the service life of equipment.The material being bonded in feed auger can be scraped disengaging by material scraping plate, and putting can effectively prevent material from being bonded on the flight of feed auger.

Description

A kind of feeding screw of plastic garbage pyrolysis furnace

Technical field

The invention belongs to field of garbage disposal, it is more particularly to a kind of by plastic garbage continuous processing and comprehensively utilize method In plastic garbage processing system in plastic garbage pyrolysis furnace feeding screw.

Background technology

Plastic garbage is one of rubbish common in daily production and life, due to the degradability that is difficult to of plastic garbage, mesh The method of pre-treatment plastic garbage is mainly using landfill, burning, the method cracked；Landfill method is that plastic garbage is bought in into underground, By its natural degradation, such way time cycle length, have greater environmental impacts, land occupation；Combustion method is by plastic garbage Burnt, either with Other Waste or the combust of material one, as generating or other thermals source, such way is due to modeling A large amount of toxic gases can be produced after material burning, secondary pollution is caused to environment；The method of cracking, it is that plastic garbage is put into cracking Stove, plastics are decomposed again, petroleum substance is produced after decomposition, fuel or other raw materials can be used as to reuse；Existing Method for cracking treatment in, problems be present, first, existing complete continuous cracking equipment is to plastics in plastic garbage Composition requires, that is to say, that, it is desirable to the uniformity of the plastics variety in plastic garbage will get well, the ratio containing certain plastic components Example is needed to reach more than 85%, and this can be realized, for refuse classification for the good country that refuse classification is done Incompact country that is bad or doing is difficult to realize；It is existing if such component requirements can not be reached Cracking apparatus cannot realize the cracking of plastic garbage, gently then equipment does not work, heavy then cause equipment explosion；It is furthermore right Substantial amounts of toxic gas is produced in the processing method discontinuously cracked, cracking process can still be discharged into air, to environment Secondary pollution is caused, while strong acid is produced after these toxic gases chance water, causes equipment corrosion serious, shortens equipment and use the longevity Life；3rd, due to different plastic components in cracking be present, and cracking temperature is merely able to adapt to the cracking temperature of a certain plastics Degree, it is impossible to the cracking of plastic garbage is realized on a pyrolysis furnace, while needs to be sorted plastics variety, it is residual after cracking Slag is easily bonded on furnace wall, causes pyrolysis furnace to damage, while the residue for clearing up furnace wall will also result in the secondary pollution of environment；The 4th, the sorting of existing plastic garbage is the method by the way that plastic garbage is crushed, and so consumption energy is big, causes the energy unrestrained Take.

To solve the above problems, the applicant have submitted Application No. " 2017104731616 ", a kind of entitled " plastics The Chinese invention patent application of waste cracking furnace ", the pyrolysis furnace of the plastic garbage processing system of the patent application publication, the modeling Material refuse disposal system can realize the continuous cracking of multicomponent plastic garbage, and not discharge any pollution environment in cracking process Solid, liquids and gases, realize the comprehensive utilization of plastic garbage, save the energy, still, the pyrolysis furnace was actually using Cheng Zhong, often occur that feeding screw of the oil gas caused by plastic cracking along pyrolysis furnace enters in the taper feed bin of pyrolysis furnace, Cause the problems such as cracking bore seal of pyrolysis furnace is not tight, and cracked gas leaks, in addition the feeding screw of existing pyrolysis furnace The suspention of feed auger formula be arranged on pyrolysis furnace upper cover top, the lower end of feed auger is completely hanging.Lack necessary branch Support structure, causing feed auger, the swing of feed auger lower end is excessive, and feed auger rotation is unstable, causes in actual use Feed uneven, while outer barrel is also easily touched in the swing of feed auger lower end, increase friction, has a strong impact on making for feed auger Use the life-span.

The content of the invention

In summary, in order to overcome the shortcomings of prior art problem, the invention provides a kind of plastic garbage pyrolysis furnace Feeding screw, it be improve pyrolysis furnace feeding screw structure and parameter, make feeding screw can uniform feeding it is same When the enough cracking bore seals by taper feed bin and pyrolysis furnace of and can, avoid cracked gas from being leaked from feeding screw, ensure to split Effect is solved, is advantageous to cracked gas and is recovered processing utilization.

A kind of feeding screw of plastic garbage pyrolysis furnace, the screw feeding device are applied to plastic garbage pyrolysis furnace, institute The plastic garbage pyrolysis furnace stated includes support, underdrive device, receives slag pan, lower blast pipe, lower interlayer, Gas Pipe, burner, combustion Burn room, hot blast discharge pipe, fuel-air mixture efferent duct, fixed gas escape pipe, upper cover, taper feed bin, feeding screw, upper cover Plate, flowline, upper stock guide, one-level distributing device, upper comb, upper cylinder, two level distributing device, lower comb, lower cylinder, lower cover and slag-scraper, Main shaft, dregs-separating device, vapor pipe, outer swivel joint, inward turning adapter, lower water inlet pipe, lower warm-air pipe and body of heater, described taper Feed bin is arranged on the top of body of heater, and taper feed bin is back taper cavity body structure, in its taper along and body of heater airtight connection, taper There is circular open the lower end of feed bin, wherein：Described feeding screw includes charging axle, feeder outer cover, feed auger, lower branch Support and charging axial brake device, the upper end of described charging axle are connected in upper cover by bearing, and charging axle is provided with upper cover Drive device, charging axial brake device drive charging axle to rotate, and the bottom of described charging axle is installed in feeder outer cover, institute The feeder outer cover stated is tubular structure, and its excircle is fixedly connected with the circular open of the lower end of taper feed bin, and described enters Expect to be provided with feed auger on the excircle of axle, feed auger is stretched into feeder outer cover, and described feed auger enters charging The depth of device outer cover is 50 ~ 100mm, and the lower end of the feeder outer cover of described tubular structure is provided with hush panel, described cylinder Circumferentially disposed multiple discharging openings, discharging opening are positioned close to one end of hush panel on the excircle of the feeder outer cover of shape structure, The lower end of described charging axle is flexibly connected by bearing with hush panel, and one end of the close hush panel of described charging axle is set There are multiple strippers, multiple strippers are arranged centered on charging axle in swirl shape, the space between two adjacent strippers The discharging opening on a feeder outer cover is corresponded to, material scraping plate, the upper end of material scraping plate are provided with described feeder outer cover inwall Fixed with feeder outer cover inwall, its lower end is stretched into feed auger, and gap between lower end and charging axle be present.

Technical scheme may also is that realization：The cross sectional shape of described material scraping plate is " n " type, " n " The upper end of type material scraping plate and the inwall of feeder outer cover are fixed, and its lower end is stretched into feed auger, and is distributed in feed auger Both sides.

Technical scheme may also is that realization：On the inwall of the feeder outer cover of described tubular structure It is provided with antiwear heat resisting liner.

Technical scheme may also is that realization：The thickness of described feed auger is 12 ~ 15mm, described Feed auger be wrapped with thermal insulation layer.

Beneficial effects of the present invention

1st, feeder outer cover of the invention be tubular structure, and its lower end sets hush panel, the one of close hush panel on its excircle End is provided with discharging opening, and one end of close the hush panel of described charging axle sets the stripper of swirl shape arrangement, in charging axle Feed auger material is pushed to the lower end of feeder outer cover, receive the stop of hush panel, material can not directly under drop into cracking In stove, in charging axle rotation process, stripper rotation, material rotation is driven, under the influence of centrifugal force, material is outside feeder Discharging opening on cover is thrown out of, after by the stop of upper cover plate under drop into pyrolysis furnace, stripper set be oriented to discharging work With, hush panel is flexibly connected with the lower end of charging axle by bearing, hush panel support charging axle lower end, the upper end of charging axle with Upper cover is connected by bearing, realizes the support up and down of charging axle, can effectively solve the charging axle that existing suspention is set Vibration problems in rotary course, the friction between charging axle and feeder outer cover is avoided, ensure the service life of equipment.

2nd, the depth that feed auger of the invention enters feeder outer cover is 50 ~ 100mm, and feed auger enters outside feeder The feeding resistance of the more deep then feed auger of the depth of cover is bigger, it is necessary to which the energy of consumption is more, and feed auger enters feeder The depth of outer cover is more shallow, then feeding efficiency can reduce, and influences lysis efficiency, and feed auger is entered feeder outer cover by the present invention Depth limits, and both ensure that feeding efficiency and can enough reached reduction resistance, and had saved the effect of the energy.

3rd, the material being bonded in feed auger can be scraped disengaging by material scraping plate of the invention, and putting effectively to prevent Material bonds on the flight of feed auger, and the cross sectional shape of material scraping plate is " n " type, the supporting leg straddle mounting of " n " type structure bottom two In the both sides of flight, two sides that can be to the flight of feed auger while scraper.

4th, the thickness of feed auger of the invention is 12 ~ 15mm, and feed auger is wrapped with thermal insulation layer or feed auger It is made of heat-resisting steel sheet and plate, the heat transfer in the plastic garbage after preheating can be avoided to be avoided to feed auger and charging axle Influence of the temperature change to charging axle and feed auger, so that charging axle and feed auger long-time safe and stable operation.

5th, antiwear heat resisting liner, the setting energy of liner are provided with the inwall of the feeder outer cover of tubular structure of the invention Enough effective frictions for reducing material and feeder outer cover in feeding process, ensure the service life of feeder outer cover.

Brief description of the drawings

Fig. 1 is the structural representation of the present invention

1. pretreatment system, 2. conveying equipments, 3. pyrolysis furnace feed bins, 4. pyrolysis furnaces, 5. pyrolysis furnace gas outlet ducts, 6. combustion gas Recovery system, 7. air compressors, 8. condensers, in 9. and device, 10. oil water separators, 11. oils efferent ducts, 12. water are defeated Outlet pipe, 13. oil-water mixture delivery pipes, 14. building block production equipments, 15. building blocks are pulverized and mixed device.

Fig. 2 is the structural representation of pretreatment system sorting device

1-1. frames, 1-2. shells, 1-3. conveyer belts, 1-4. setting wheels, 1-5. separation wheels, 1-6. drawing-inrollers, 1-7. particles go out Material mouth, 1-8. stone discharging openings, 1-9. plastics discharging openings.

Fig. 3 is the structural representation of conveying equipment

2-1. air conveying devices, 2-2. accumulators, 2-3. dissipate wind net, 2-4. chain types lifting conveying device, 2-5. holding tanks, outside 221. Shell.

Fig. 4 is that chain type lifting conveying device splits the structural representation after outer cover

2-41. supports, 2-42. drive sprockets, 2-43. support sprocket wheels, 2-44. chains, 2-45. conveying scraper plates, at 2-46. preheatings Manage device, 2-47. outer covers, the track of 2-48. additive-adding devices, 2-49. driven sprockets.

Fig. 5 is the structural representation of pyrolysis furnace

41. support, 42. underdrive devices, 43. receive slag pan, 44. lower blast pipes, 45. times interlayers, 46. Gas Pipes, 47. burnings Device, 48. combustion chambers, 49. hot blast discharge pipes, 410. fuel-air mixture efferent ducts, 411. fixed gas escape pipes, 412. upper covers, 413. charging axial brake devices, 414. charging axles, 415. taper feed bins, 416. feeding screws, 417. feeder outer covers, 418. Upper cover plate, 419. flowlines, stock guide on 420., 421. one-level distributing devices, comb on 422., cylinder on 423., 424. two level clothes Device, 425. times combs, 426. times cylinders, 427. lower covers and slag-scraper, 428. main shafts, 429. dregs-separating devices, 430. vapor pipes, 431. Outer swivel joint, 432. inward turning adapters, 433. times water inlet pipes, 434. times warm-air pipes, 435. bodies of heater.

Fig. 6 is the structural representation for neutralizing device

91. flue gas inlet pipe, 92 shells, 93. petticoat pipes, 94. blast pipes, 95. spray equipments, 96. chemical fertilizer stoste outlets.

Fig. 7 is the structural representation of condenser

8. condenser, 10. oil water separators, 81. first-stage condensers, 82. first-stage condenser shells, 83. first-stage condensers heat are handed over Parallel operation, 84. right air inlet pipe, 85. secondary condenser shells, 86. non-condensable gas exports, air inlet pipe in 87., 88. left air inlet pipe, 89. secondary condenser heat exchanger.

Fig. 8 is the structural representation of oil water separator

8. condenser, 101. outer shell of oil-water separator, 102. oil-outs, 103. sewage draining exits, 104. feed tubes, 105. delivery ports, 106. catch tray.

Fig. 9 is the structural representation of main shaft

281. axis bodies, 282. axle beds, 283. vapor pipes, 284. enter warm-air pipe, 285. water inlet pipes, 286. baffle plates.

Figure 10 is the structural representation of feeding screw

412. upper covers, 413. charging axial brake devices, 414. charging axles, 415. taper feed bins, 416. feeding screws, 417. enter Glassware outer cover, 418. upper cover plates, 4161. feed augers, 4162. strippers, 4163. hush panels, 4171. heat-resistant antifriction liners, 4172. discharging openings, 4173. material scraping plates.

Figure 11 is Figure 10 of the present invention A-A schematic cross-sectional views

414. charging axles, 4162. strippers, 4163. hush panels, 4172. discharging openings.

Embodiment

In order to further illustrate technical scheme, in conjunction with accompanying drawing, illustrate embodiment of the invention, such as Fig. 1-11, frame 1-1 are used as from the general frame of the industry in this example, by frame 1-1 in Equipment Foundations, for propping up Support and install whole functional part；Shell 1-2 is made from 1 millimeter of steel plate of thickness, shell 1-2 is arranged on frame 1-1； From the general chain type conveyor belt of the industry as conveyer belt 1-3, by conveyer belt 1-3 installed in frame 1-1 one end, and with moving Pending plastic garbage, can be sent at setting wheel 1-4 by power and control system connection from the charging aperture of sorting device；This example Middle both ends set rotating shaft, and be connecteds with transmission device from main body of the hollow cylinder as setting wheel 1-4, by described group Material wheel 1-4 is arranged on frame 1-1, and positioned at conveyer belt 1-3 top, and it is located at conveyer belt 1-3 afterbodys one end；In this example Multiple switch-plates being hinged with setting wheel 1-4 are provided with setting wheel 1-4, are evenly arranged in setting wheel 1-4 excircle；Ensure Setting wheel 1-4 direction of rotation is opposite with the direction of rotation of conveyer belt 1-3 afterbody drive sprockets；Hollow cylinder is selected in this example Power transmission shaft is installed as separation wheel 1-5 main body, and at both ends, separation wheel 1-5 is arranged on frame 1-1, positioned at conveyer belt The bottom of drawing-inroller 1-6 outside 1-3 afterbodys one end, power transmission shaft is connected with transmission device, ensures its direction of rotation and feeding It is identical to take turns 1-6；Sorter is installed on separation wheel 1-6；Described sorter is platy structure；Uniformly it is covered with the excircle of separation wheel Surface；Main body of the welded steel plate into cylinder type hollow body as drawing-inroller 1-6 is selected in this example, and installs and is driven at both ends Axle, drawing-inroller 1-6 is arranged on frame 1-1, positioned at setting wheel 1-4 rear portion and separation wheel 1-5 top；On drawing-inroller Feed appliance is set；Feed appliance is tabular, is uniformly covered with drawing-inroller 1-6 excircle；Also set up simultaneously in drawing-inroller 1-6 excircles There is blower, blower is evenly arranged in drawing-inroller 1-6 excircle, and drawing-inroller 1-6 can produce tangential wind-force when rotating；Will The power transmission shaft at drawing-inroller 1-6 both ends is connected the rotation side for ensureing drawing-inroller 1-6 direction of rotation with separation wheel 1-5 with transmission device To identical, be so advantageous to when two-wheeled rotates, the delivery sheet and material selecting board of its excircle are interlaced, by plastic garbage Fibre object or the larger plastic garbage of volume are cut short, torn up；From comb type frame as particle discharging opening 1-7 in this example, it is combed Spacing distance is less than the minimum grain size of the conveying plastics of design；So ensure that dust and debris in small, broken bits can be from particle discharging opening 1- Discharged in 7, and satisfactory plastics are not discharged；Particle discharging opening 1-7 is arranged on shell 1-2, positioned at separation wheel 1-5 Bottom；Stone discharging opening 1-8 is arranged on shell 1-2 as stone discharging opening 1-8 from self-weight reset formula baffle plate in this example On, positioned at the rear of separation wheel and positioned at particle discharging opening 1-7 top；So when a kind of lightweight object of plastic flakes is encountered During stone discharging opening 1-8, it will be stopped by stone discharging opening 1-8, when the weights such as stone, metal derby meet stone discharging opening 1-8 When, the gravity of striker plate can be overcome, and discharge outside shell 1-2；It is made to enter with air conveying device from thin-walled steel plate in this example Plastics discharging opening 1-9 is arranged on shell 1-2, position by the section identical tubular article of material mouth matching as plastics discharging opening 1-9 In drawing-inroller 1-6 rear portion oblique upper, docked with the air conveying device entrance of conveying device, this completes pretreatment system 1 Sorting device implementation, in sorting device front end, from the chain type conveyor belt that the industry is general, and thereon install preheating remove Wet device, is combined with sorting device, is formed pretreatment system 1.

As shown in Figure 3, Figure 4, the tubular of square-section is made in this example from thin-walled steel plate, will as air conveying device 2-1 Air conveying device 2-1 is arranged between plastic garbage sorting device and accumulator 2-2, its charging aperture and plastic garbage sorting device The 1-9 connections of plastics discharging opening, its discharging opening are connected with accumulator 2-2；In order to reduce the pressure and wind speed in accumulator 2-2, this It is less than the sectional area that one end is connected with accumulator 2-2 in example from the sectional area that one end is connected with plastic garbage sorting device；This In example, by scattered wind net 2-3 installed in the suitable for reading of accumulator 2-2, whole accumulator 2- is covered from plastic wire as wind net 2-3 is dissipated 2 is suitable for reading and be fixedly connected with accumulator 2-2, and its mesh diameter is less than the particle diameter of plastic garbage, can either so play scattered wind and make Flying out for plastic flakes can be prevented with having；The tapered upper shed cavity body of chamfered edge is made from thin-walled steel plate in this example, as storing Device 2-2, it is installed in air conveying device discharge port end and chain type lifting conveying device feed inlet end；Led in this example from the industry By the use of chain scraper conveying lifting device be used as chain type lifting conveying device 2-4；Chain type lifting conveying device 2-4 one end is pacified Inside accumulator 2-3, the other end is connected with In Cracking Feedstock storehouse, from the chain scraper conveying that the industry is general in this example Support 2-41 is arranged between accumulator 2-3 and pyrolysis furnace 4 as support 2-41 by the frame of machine, respectively with accumulator 2-3 and The support member connection of pyrolysis furnace 4；From the general drive sprocket for meeting national standard of the industry respectively as drive sprocket 2-42 and support sprocket wheel 2-43, support one end, the drive with the power set of conveying equipment are arranged on by drive sprocket 2-42 Connection；Drive sprocket 2-42 has two in this example, on same axle, and is located at support both sides, is so advantageous to negative Keep both sides to balance in power when lotus is heavier, avoid causing chain and scraper plate operating unstable；Support sprocket wheel 2-43 is arranged on branch Support sprocket wheel 2-43 to have on frame 2-41, in this example multiple, positioned at support 2-41 both sides, be evenly distributed on support 2-41 longitudinal direction side Face, it is located at the same level of support 2-41 both sides respectively with drive sprocket 2-42；Chain has two in this example, is separately mounted to prop up The drive sprocket 2-42 of frame 2-41 both sides and support sprocket wheel 2-43 excircles structure in a ring；Scraped from the general conveying of the industry Plate is as conveying scraper plate 2-45, and between conveying scraper plate 2-45 is arranged on into two chains, its both ends connects with the chain of both sides respectively Connect；Conveyed in this example scraper plate 2-45 have it is multiple, it is parallel and be evenly arranged on ring chain, to ensure uniform load；In this example From copper pipe as the tube heater and blowing hot-air device in the pre-heat treatment device 2-46, the pre-heat treatment device 2-46 is installed Close to the one end of pyrolysis furnace 4 inside outer cover 2-47, and positioned at conveying scraper plate 2-45 top；To wherein heating tube and pyrolysis furnace 4 Hot air duct connection, produced heat can heating of plastic rubbish, reduce water content when entering pyrolysis furnace 4；By blowing hot-air Device is arranged on chain type lifting conveying device 2-4 discharge port end, is made up of multiple warm-air pipes, the air outlet alignment of its warm-air pipe Plastic garbage is heated to again enter after certain softening degree by chain type lifting conveying device 2-4 spout area, the hot blast of blowout Enter pyrolysis furnace feed bin；Outer cover 2-47 is made from thin-wall stainless steel plate bending in this example, outer cover 2-47 is arranged on support 2-41 Outside, and in sides of the support 2-47 in addition to both ends be wrapped in, so in order to avoid being dust in plastic garbage course of conveying Fly upward and cause production environment secondary pollution, while play insulation and the effect of safety；Added in this example from square steel as additive The track 2-48 of feeder apparatus, support 2-41 both sides are installed in, are connected through outer cover 2-47 with support 2-48, it is parallel by two Track composition, the support 2-41 length that its track length and chain type lift conveying device is identical, and this completes conveying to set Standby 2 implementation.

As shown in figure 9, described main shaft, it is characterised in that：Including axis body, axle bed, vapor pipe, enter warm-air pipe, intake Pipe, baffle plate；From material of the general commercially available stainless steel of the industry as axis body 281 because axis body 281 always temperature compared with Worked in the state of height；The one end of axis body 281 closing one end open is formed into open cavity body, its open at one end is downward, in opening One end is connected with axle bed 282；Axle bed 282 is arranged on the open at one end of axis body 281, the integrally manufactured He of axis body 281 is used in this example Axle bed 282；Axle bed is equally hollow body, and the endoporus of its endoporus and axis body 281 matches；Using the general method of the industry in axle Installation bearing and the structure being connected with transmission device are set on seat；Steam pipe 283 is arranged on the internal cavities of axis body 281 It is interior, there is the distance of 10-100 millimeters at its inner cavity top closing of upper end distance axis body 281,50 millimeters of distance is selected in this example, Its lower end is stretched out outside axis body 281 through baffle plate 286 and is upward through dregs-separating device 429 after bending and reaches the surface of dregs-separating device 429；Will Steam pipe 283 is tightly connected with the junction of baffle plate 286；Warm-air pipe 284 will be entered on baffle plate 286, fixed with baffle plate 286 It is tightly connected, its upper end is hanging, and lower end is connected with outer swivel joint 431, ensures into the center of warm-air pipe 284 and axle bed 282 Axis overlaps；Water inlet pipe 285 is arranged on into warm-air pipe 284, upper end is hanging, and lower end is connected with inward turning adapter 432；Setting The upper end into warm-air pipe 284 is stretched out in the upper end of water inlet pipe 285；Baffle plate 286 is arranged on to the cavities open of the lower end of axle bed 282 Place, is tightly connected with axle bed 282；3 steam pipes 283 are selected in this example, are evenly distributed on the circumference of the intracavity section of axis body 281 On, this completes the implementation of main shaft 428.

As shown in figure 5, adding crossbearer to form support 41 from four general supporting legs of the industry in this example, support 41 is set In the periphery bottom of body of heater 435, for supporting and fixing body of heater, the stabilization of whole pyrolysis furnace 4 is kept；Worm gear snail is selected in this example Bar transmission device is disposed at the bottom of body of heater 435 as underdrive device 42, can drive main shaft 428 and receive slag pan 43 and revolve Turn；Back taper cavity body in this example from upper shed, which is used as, receives slag pan 43, and receipts slag pan 43 is arranged on to the bottom of body of heater 435, And it is looped around around main shaft 428；The edge of slag pan 43 will be received slag notch is set, its slag notch is connected with building block extrusion equipment；Choosing By the use of stainless steel tube as lower blast pipe 44, lower blast pipe 44 is arranged on body of heater 435, connected with the place space of burner 47； Lower interlayer 45 is arranged on the inner chamber bottom of body of heater 435, upper end is connected with the lower interlayer wall where burner 47, and with lower interlayer 45 Inwall forms confined space；Gas Pipe 46 is arranged on body of heater 435, is connected through furnace body wall with burner 47；Selected in this example By the use of gas burner as burner 47, burner 47 is arranged on the lower wall of combustion chamber 48, stretched through the lower wall of combustion chamber 48 Enter into combustion chamber 48；On the periphery of burner 47, air inlet duct is set；Multiple burners 47 are selected in this example, are evenly distributed on burning On the lower wall of room 48, reach the effect of homogeneous heating；Combustion chamber 48 is arranged on the middle part of body of heater 435, is relatively closed space；Its Lower wall is connected with body of heater 435 and lower interlayer 45, and upper wall has certain intervals with lower wall, and end is connected with lower wall and body of heater；Ensure combustion It is to have metric space with main shaft excircle to burn room 48 at the position of main shaft 428；Hot blast discharge pipe 49 is arranged on outside body of heater 435 Portion, connected with the inside of combustion chamber 48；Fuel-air mixture efferent duct 410 is arranged on body of heater 435, on upper stock guide 420 Portion；The position for setting fuel-air mixture efferent duct 410 is higher than the position of flowline 419；Fixed gas escape pipe 411 is arranged on stove On body 435, near taper feed bin 415 and the binding site of body of heater 435；Upper cover 412 is arranged at the top of body of heater, from upper cover 412 be hemi-spherical cavities body, bottom and the upper end airtight connection of body of heater 435；Side sets fan-shaped charging aperture in upper cover 412, with The discharging opening docking of conveying equipment 2；From the general motor acceleration and deceleration device of the industry as charging axial brake device 413, will enter Material axial brake device 413 is arranged on the upper outside of upper cover 412, is connected with charging axle 414, charging axle 414 can be driven to rotate；Will Charging axle 414 is arranged between upper cover 412 and taper feed bin 415, and the upper end of charging axle 414 is connected to upper cover 412 by bearing On, described charging axial brake device 413 drives charging axle 414 to be rotated with 20 revs/min of rotating speed, and taper feed bin 415 is set Put edge and body of heater on the top of body of heater 435, shape of the selection back taper thin wall cavity body as taper feed bin 415, its taper Circular open is arranged at 435 airtight connections, bottom；Feeder outer cover 417 is provided with the circular open of the lower end of taper feed bin 415, Feeder outer cover 417 and the circular open of the lower end of taper feed bin 415 are welded and fixed, the feeder outer cover of described tubular structure 417 lower end is provided with hush panel 4163, circumferentially disposed multiple on the excircle of the feeder outer cover 417 of described tubular structure Discharging opening 4172, discharging opening 4172 are positioned close to one end of hush panel 4163, and the lower end of described charging axle 414 passes through bearing It is flexibly connected with hush panel 4163, one end of the close hush panel 4161 of described charging axle 414 is provided with multiple strippers 4162, multiple strippers 4162 are arranged centered on charging axle 414 in swirl shape, the sky between two adjacent strippers 4162 Gap corresponds to the discharging opening 4172 on a feeder outer cover 417, is set on the inwall of the feeder outer cover 417 of described tubular structure Antiwear heat resisting liner 4171 is equipped with, the bottom of charging axle 414 is installed in feeder outer cover 417, on the excircle of charging axle 414 Be provided with feed auger 4161, feed auger 4161 is stretched into feeder outer cover 417, expect spiral 4161 external diameter than feeder outside Small 12 ~ the 20mm of internal diameter of cover 417.The pitch of described feed auger 4161 is the 1/3 of the external diameter of feed auger 4161.Described enters The thickness for expecting spiral 4161 is 12 ~ 15mm, and described feed auger 4161 is wrapped with thermal insulation layer.Described feed auger 4161 Depth into feeder outer cover 417 is 50 ~ 100mm.

It is provided with material scraping plate 4173 on the inwall of feeder outer cover 417, the cross sectional shape of material scraping plate 4173 is " n " type, " n " type The upper end of material scraping plate 4173 and the inwall of feeder outer cover 417 are fixed, and its lower end is stretched into feed auger 4161, and be distributed in into Expect the both sides of spiral 4161, gap be present between the lower surface of material scraping plate 4173 and charging axle 414, avoid material scraping plate 4173 with entering Expect that axle 414 interferes

Upper cover plate 418 is arranged on to the lower end of taper feed bin 415, is umbrella shape, Open Side Down, its outward flange and upper stock guide 420 Staggeredly；Flowline 419 is set on body of heater 435, positioned at the top of upper stock guide 420, its height exports less than fuel-air mixture The position of pipe 410；Upper stock guide 420 is arranged on the top of body of heater 435 and under the top of combustion chamber 48, upper cover plate 418 Portion, its overhanging end interlock with upper cover plate 418；One-level distributing device 421 is arranged on the upper end of main shaft 428, one end is fixed with main shaft to be connected Connect, the other end is hanging, is made up of polylith drapery panel, and all drapery panels are interlaced, arranged in flakey, its free end and combustion Burning the inwall of room 48 has certain interval；In order to which the convenient drapery panel by one-level distributing device 421 of blanking sets the angle tilted down；Will Upper comb 422 is arranged between the inwall of combustion chamber 48 and upper cylinder 423, and selection is comb shape structure in this example, around upper cylinder 423 in radiation Arrangements, network structure can also be used；Both ends are connected with the inwall of combustion chamber 48 and the outer wall of upper cylinder 423 respectively；Selected in this example It is tubular structure to select cylinder 423, and its outer wall is fixedly connected with upper comb 422, and inside circumference is provided with the axle bed of supports main shaft 428, Bearing is installed in axle bed, upper support and rotation for main shaft 428；Two level distributing device 424 is arranged under upper cylinder 423 End, one end are connected with main shaft 428, and the other end is hanging, are arranged to polylith drapery panel composition, and polylith drapery panel is interlaced, are in Flakey arranges that its free end has certain interval with the inwall of combustion chamber 48, is easy to plastics to pass through；In order to facilitate blanking, by two level The drapery panel of distributing device sets the angle tilted down；Lower comb 425 is arranged between the inwall of combustion chamber 48 and lower cylinder 426, this Profit selection is comb shape structure, and its both ends is connected with the inwall of combustion chamber 48 and the lower outer wall of cylinder 426 respectively；Lower cylinder 426 is arranged on 423 bottoms of cylinder, there is certain distance with upper cylinder 423, select tubular structure, its outer wall is fixedly connected with lower comb 425, under support Cylinder 426；Lower cover and slag-scraper 427 are arranged on main shaft 428, its slag-scraper is contacted with the lower inner wall of combustion chamber 48, Its effect is to strike off the residue for being bonded in inwall；Main shaft 428 is arranged on underdrive seat, is arranged to hollow shaft, can be under Rotated under the drive of transmission device 42；Water inlet pipe, warm-air pipe, vapor efferent duct are installed inside main shaft 428；By dregs-separating device 429 are arranged on main shaft 428, can be rotated with main shaft 428, be arranged to umbrella-shaped structure；Vapor pipe 430 is arranged on master On axle 428, stretched out by the inside of main shaft 428 through dregs-separating device 429 to the upper surface of dregs-separating device 429, can be the upper of dregs-separating device 429 Surface provides vapor, so that vapor is combined generation water-gas with hot-engine sludge；Outer swivel joint 431 is arranged on bottom On seat, one end is connected with the warm-air pipe in main shaft 428, and the other end is connected with lower warm-air pipe 434；By inward turning adapter 432 are arranged on inside outer swivel joint 431, and one end is connected with the water inlet pipe in main shaft 428, the other end and lower water inlet pipe 433 connections；Lower water inlet pipe 433 is arranged on inward turning adapter 432, lower warm-air pipe 434 is penetrated and is connected with water source；By lower hot blast Pipe 424 is arranged on outer swivel joint 431, and one end is connected with outer swivel joint 431, and the other end is connected with heat air source；Selection The general tubular structure of the industry is installed on support 41, upper end is connected with upper cover 412, and lower end hangs as body of heater 435 Sky, this completes the implementation of pyrolysis furnace 4.

As shown in fig. 6, flue gas inlet pipe 91 is arranged on to the lower end of shell 92, lower end and the burning installed in the bottom of shell 92 Room connects, and is connected in the middle part of lower end with the fixed gas escape pipe of pyrolysis furnace 4, the other end is stretched into inside shell 92；Shell 92 is installed It is confined air cavity positioned at the top of pyrolysis furnace 4 in combustion chamber upper end；Petticoat pipe 93 is arranged on to the upper end of flue gas inlet pipe 91, set For umbrella-shaped structure；Ensure that petticoat pipe 93 and the inwall of shell 92 have gap during installation, so that ejecting liquid flows down；By the bottom of petticoat pipe 93 Gap is left between the upper end of flue gas inlet pipe 91, so that gas flows out；Blast pipe 94 is arranged on the top of shell 92, is set to tubular Structure, one end connect with the inside of shell 92, the other end and atmosphere；Spray equipment 95 is arranged in blast pipe, positioned at cigarette There is certain distance the top of cover 93 with petticoat pipe 93, and neutralising fluid can be sprayed to the space between petticoat pipe and blast pipe, in order to Pernicious gas fully contacts mixing；Chemical fertilizer stoste outlet 96 is arranged on to the bottom of shell 92, connected with the inner chamber of shell 92, so as to The chemical fertilizer stoste outflow that the neutralising fluid sprayed out is formed after being mixed with flue gas, this completes the implementation for neutralizing device 9.

As shown in fig. 7, first-stage condenser 81 is arranged on to the upper end of oil water separator 10, its lower end and oil water separator 10 106 connection suitable for reading of catch tray；First-stage condenser shell 82 is arranged on to the upper end of oil water separator 10；By first-stage condenser heat Exchanger 83 is arranged in first-stage condenser shell 82, cold as one-level from the general tubing heat exchanger of the industry in this example Condenser heat exchanger 83, there is cooling liquid to pass through in first-stage condenser heat exchanger 83；It is cold that right air inlet pipe 84 is arranged on one-level The upper right of condenser shell 82, one end connect with the outlet of the cracked gas of pyrolysis furnace 4, the other end and the inner chamber of first-stage condenser shell 82 Connection；Secondary condenser shell 85 is arranged on inside first-stage condenser 81, its underpart opening, upper periphery and first-stage condenser The airtight connection of shell 82；Non-condensable gas export 86 is arranged on secondary condenser shell 85, in secondary condenser shell 85 Chamber connects；Middle air inlet pipe 87 is placed in the middle installed in the top of first-stage condenser shell 82, and one end connects with the outlet of the cracked gas of pyrolysis furnace 4 Connect, the other end connects with the inner chamber of first-stage condenser shell 82；It is left that left air inlet pipe 88 is arranged on the top of first-stage condenser shell 82 Side, one end connect with the outlet of the cracked gas of pyrolysis furnace 4, and the other end connects with the inner chamber of first-stage condenser shell 82；By B-grade condensation Device heat exchanger 89 is arranged on inside secondary condenser shell 85, cold as two level from the general tubing heat exchanger of the industry Condenser heat exchanger 89, the interior circulation of secondary condenser heat exchanger 89 have cooling liquid, and secondary condenser shell 85 and two level are cold Condenser heat exchanger 89 forms secondary condenser, and this completes the implementation of condenser 8.

As shown in figure 8, outer shell of oil-water separator peace 101 to be mounted in the lower end of condenser 8, thin wall cavity body is arranged to, with Condenser casing 82 connects；Oil-out 102 is arranged on outer shell of oil-water separator 101, with the inner chamber of outer shell of oil-water separator 101 Connection, the position height on outer shell of oil-water separator 101 of setting oil-out 102 are higher than the position of the delivery port 105 of outlet pipe Put height；Sewage draining exit 103 is arranged on to the bottom of outer shell of oil-water separator 101, valve is installed thereon, regularly to discharge dirt Thing；Feed tube 104 is arranged on the inner chamber of outer shell of oil-water separator 101, is set to tubulose, upper end is connected with catch tray 106, and lower end opens Mouthful；Delivery port 105 is arranged on outer shell of oil-water separator 101, connected by pipeline and the intracavity bottom of outer shell of oil-water separator 101 It is logical, to extract the water of bottom；The position height for setting delivery port is less than the position height of oil-out；Catch tray 106 is installed In the inner chamber of outer shell of oil-water separator 101, back taper thin-walled hollow body is arranged to, its upper end condenses with the one-level on condenser 8 Device shell 82 is connected, and lower end is connected with feed tube 104, and this completes the implementation of oil water separator 10.

As shown in figure 1, pretreatment system 1 to be arranged on to the charging aperture section of conveying equipment 2, it is connected with conveying equipment 2；Will be defeated Equipment 2 is sent to be arranged between pretreatment system 1 and dore furnace 3, its import is connected with pretreatment system 1, and it is exported and dore furnace 4 Connection；Additive-adding device 3 is set by the way of the general hoist engine of the industry pulls dolly, and allow its be arranged on it is defeated Send and run on the track in equipment 2, additive-adding device 3 is arranged on conveying equipment 2, its end and dore furnace feeding warehouse Linking；Pyrolysis furnace is arranged on the discharging opening one end of conveying equipment 2, its feeding warehouse is held in the mouth with conveying equipment 2 and additive-adding device 3 Connect, its gas outlet is connected with conveyance conduit, and its slag notch is connected with building block production equipment 14；Device 9 will be neutralized and be arranged on cracking The top of stove 4, it is connected by pipeline with the feeding warehouse upper cover of pyrolysis furnace 4, and is connected with neutralization additive and water inlet pipe, its liquid Chemical fertilizer stoste outlet is connected with liquid fertilizer storage device by pipeline；Using other general recovery systems of the industry as combustion Gas recovery system 6, by combustion gas recovery system 6 be arranged between condenser 8 and pyrolysis furnace 4, by pipeline respectively with condenser 8 and Pyrolysis furnace 4 connects；Described condenser 8 is arranged on the side of pyrolysis furnace 4, passes through pipeline and the gas outlet duct of pyrolysis furnace 4 Connection；Oil water separator 10 is arranged on the bottom of condenser 8, its outlet is connected with oily output channel and water delivery pipe road respectively； Using the general building block production equipment of the industry as building block production equipment 14, building block production equipment 14 is arranged on pyrolysis furnace 4 Side, be connected with the slag notch of pyrolysis furnace 4；Using the general oil tank of the industry as storage of oils equipment, by storage of oils Equipment is arranged on the side of oil water separator, is connected by the oil-out of pipeline and oil water separator, just completes plastic garbage The implementation of processing system.

Using when, the plastic garbage gathered is sent into plastic garbage pretreatment system 1, sent after prebake and sorting Enter conveying equipment 2, conveying equipment 2 is heated to the plastic garbage of outlet again, and pyrolysis furnace is then entered together with additive 4；The additive used in this example mainly includes lime, hollow alumina, molecular sieve, used oil, primarily serves neutralization and fixed line Hydrogen chloride and sulfur dioxide gas, prevent from that equipment is caused to corrode and lubricated and catalytic action；Normal pressure is carried out in pyrolysis furnace 4 Anaerobic continuous cracking；Gas caused by pyrolysis furnace 4 is liquefied by condenser 8, the oil water mixture after liquefaction enters oil Separator 10, not liquefied gas come back to pyrolysis furnace 4 into combustion gas recovery system 6 and are used as fuel；In the bottom of pyrolysis furnace 4 Slagging is slagged tap using immersion type, to ensure that the internal cleavage room of pyrolysis furnace 4 does not have air exchange with extraneous；Into oil water separator 10 liquid mixture, recycled respectively through oil-out and delivery port into pond and oil tank by separating, by neutralizing The hydrogen chloride and sulfur dioxide of device 9 neutralize by liquid, using ammoniacal liquor and additive as neutralising fluid in this example, after neutralization Multicomponent liquid fertilizer stoste is generated, is applied to crops for manufacture chemical fertilizer or small range after storage.

Cracked as a result of anaerobic, reduce the generation of toxic gas；As a result of multi-step temperature section, that is, three Level cloth, can adapt to the cracking of the plastic garbage of unlike material will not produce because stove caused by cracking temperature difference explodes With the accident for bonding body of heater；As a result of immersion type deslagging, the secondary pollution to environment is avoided；Returned as a result of combustion gas Receive and utilize, save the energy；Slag is drenched as a result of vapor, and has slag scraper continuously to work, reduces deslagging, produces more Water-gas, and avoid body of heater bonding；As a result of continuous cracking, the air pollution of too many levels is avoided；As a result of Conventional cracking, avoid because hypertonia produces pyrolysis furnace Explosion of boiler proper；Produce, recycled solid as a result of building block Body waste material, reduces secondary pollution；As a result of device is neutralized, reduce toxic gas discharge, while produce fluidization Fertilizer；Therefore this method has efficiency high, and environmental pollution is small, and salvage value is high.

One embodiment of the present invention simply is listed in the present embodiment, does not represent all technical sides of the present invention Case, any deformation done on this basis, it is considered as invading technical scheme.

Claims (4)

1. a kind of feeding screw of plastic garbage pyrolysis furnace, the screw feeding device is applied to plastic garbage pyrolysis furnace, described Plastic garbage pyrolysis furnace include support, underdrive device, receive slag pan, lower blast pipe, lower interlayer, Gas Pipe, burner, burning Room, hot blast discharge pipe, fuel-air mixture efferent duct, fixed gas escape pipe, upper cover, taper feed bin, feeding screw, upper cover plate, Flowline, upper stock guide, one-level distributing device, upper comb, upper cylinder, two level distributing device, lower comb, lower cylinder, lower cover and slag-scraper, master Axle, dregs-separating device, vapor pipe, outer swivel joint, inward turning adapter, lower water inlet pipe, lower warm-air pipe and body of heater, described conical material Storehouse is arranged on the top of body of heater, and taper feed bin is back taper cavity body structure, in its taper along and body of heater airtight connection, conical material There is circular open the lower end in storehouse, wherein：Described feeding screw includes charging axle, feeder outer cover, feed auger, lower support And charging axial brake device, the upper end of described charging axle are connected in upper cover by bearing, charging axle drive is provided with upper cover Dynamic device, charging axial brake device drive charging axle to rotate, and the bottom of described charging axle is installed in feeder outer cover, described Feeder outer cover be tubular structure, its excircle is fixedly connected with the circular open of the lower end of taper feed bin, described charging Feed auger is provided with the excircle of axle, feed auger is stretched into feeder outer cover, and described feed auger enters feeder The depth of outer cover is 50 ~ 100mm, and the lower end of the feeder outer cover of described tubular structure is provided with hush panel, described tubular Circumferentially disposed multiple discharging openings on the excircle of the feeder outer cover of structure, discharging opening are positioned close to one end of hush panel, institute The lower end for the charging axle stated is flexibly connected by bearing with hush panel, and one end of the close hush panel of described charging axle is provided with Multiple strippers, multiple strippers are in that swirl shape is arranged centered on charging axle, the space pair between two adjacent strippers Answer the discharging opening on a feeder outer cover, be provided with material scraping plate on described feeder outer cover inwall, the upper end of material scraping plate with Feeder outer cover inwall is fixed, and its lower end is stretched into feed auger, and gap between lower end and charging axle be present.

A kind of 2. feeding screw of plastic garbage pyrolysis furnace according to claim 1, it is characterised in that：Described scraper The cross sectional shape of plate is " n " type, and the upper end of " n " type material scraping plate and the inwall of feeder outer cover are fixed, and charging spiral shell is stretched into its lower end Medial rotation, and it is distributed in the both sides of feed auger.

A kind of 3. feeding screw of plastic garbage pyrolysis furnace according to claim 1, it is characterised in that：Described tubular Antiwear heat resisting liner is provided with the inwall of the feeder outer cover of structure.

A kind of 4. feeding screw of plastic garbage pyrolysis furnace according to claim 1, it is characterised in that：Described charging The thickness of spiral is 12 ~ 15mm, and described feed auger is wrapped with thermal insulation layer.