CN206068996U - A kind of bagged cement loading system - Google Patents

Abstract

A kind of bagged cement loading system, belongs to field of cement production, chute therein, including side, base, position-limited edge；Described side has two, is arranged on the two ends on base, and the two ends of its side connect respectively at base and position-limited edge；Described base is arranged on same one end of two sides, and its bottom surface is concordant with the lower surface of side；Described position-limited edge is arranged on the upper end of two sides, and one end is connected with side upper end, and plane is concordant with the upper end of two sides thereon；Described position-limited edge has two, diameter of the distance between the free end end face of two position-limited edges less than pulley wheel body, more than the diameter of the limit shaft of pulley, the characteristics of with stabilising direction when ensureing that conveyer belt is flexible.

Description

A kind of bagged cement loading system

Technical field

The invention belongs to field of cement production, more particularly to a kind of bagged cement loading system.

Background technology

In cement production enterprise, cement is crushed, finished cement is formed after mixing through Feedstock treating, calcining, production Finished cement is sold as commodity or is applied；The finished cement of existing cement production enterprise adopts two kinds of form conducts mostly Commodity, one kind are bulk cement, and one kind is bagged cement；Bulk cement is the bulk water that will be stored in bulk cement feed bin Mud, loads the special bulk cement carrier of bulk cement and is transported；Bagged cement is to load finished cement in packaging bag, then is carried out Entrucking is transported；The entrucking mode of existing bagged cement substantially has a following methods, one kind be purely carried using manually carrying out and Entrucking, it is adaptable to the finished cement entrucking of small lot；One kind is that bagged cement is transported to dress from cement silo using conveyer belt Car position, then bagged cement is attached on haulage vehicle by artificial or special equipment；Due to the finished powder of cement it is very thin, Easily fly upward in packing box transport process, also spilling easily from packaging bag, therefore, it is big outside the packaging bag of bagged cement Many finished ground cements are stained with, these powder can be produced in the transport process of bagged cement and be flown upward more, pollute working environment, shadow The healthy of staff is rung, while causing the waste of cement.

The content of the invention

For existing bagged cement problem above present in entrucking process, the present invention proposes a kind of bagged cement dress Car system, it is characterised in that：Including packed water hopper dredger, export conveyer device, dust removal conveyer device, variable bit conveyer device, remove Dirt device, transition dust cover；Described packed water hopper dredger is arranged on one end of export conveyer device；Described export conveyer device At the discharging of packed water hopper dredger, one end is connected with packed water hopper dredger, and the other end is connected with dust removal conveyer device；Described Dust removal conveyer device is arranged between export conveyer device and variable bit conveyer device, and the two ends of described dust removal conveyer device are divided Do not connect in export conveyer device and variable bit conveyer device；Described variable bit conveyer device is arranged on dust removal conveyer device Discharge end, described variable bit conveyer device are made up of multi-stage conveyance unit, and the position of its discharging opening can change；Described removes Dirt device is arranged on the discharge end of variable bit conveyer device, and positioned at the top of the discharge end；Described transition dust cover difference Between export conveyer device and dust removal conveyer device, dust removal conveyer device and variable bit conveyer device, and respectively at upper State the dust cover closing connection on conveyer device.

Described export conveyer device, including frame, power set, conveyer belt, dust cover；Described frame is arranged on On the ground of packed water hopper dredger；Described power set are arranged in frame, including motor, decelerator, controller；Described is dynamic The power output shaft of power apparatus is connected with the rolling axle of conveyer belt；Described conveyer belt is arranged in frame, including running roller, is supported Roller, belt conveyor；Described running roller has two two ends for being separately mounted to belt conveyor；Described support roller is arranged on frame On, can rotate around own axes, its outer surface is contacted with the upper belt lower surface of belt conveyor and supports the upper of belt conveyor Belt；Described belt conveyor is annular flat belt, is looped around the outside of two running rollers；Described dust cover is arranged on frame On, across conveyer belt width and the upper space of conveyer belt shrouded.

Described dust cover, including side wall, top, observation window, rapid-assembling/disassembling mouth；Described side wall has two to be arranged on top The both sides in portion and the bottom two ends positioned at top；Described top is arranged on the upper end of side wall, respectively at two side wall connections；Institute The side wall stated and top are made up of thin-walled part；Described observation window has more than individual, is separately positioned on two side walls or top；Institute The observation window stated is made of clear material, and is to be flexibly connected with side wall or top；Described rapid-assembling/disassembling mouth is arranged on two The lower end of side wall, is inverted L-shaped, quickly can quickly be mounted and is taken out with the mounting post in frame.

Described dust removal conveyer device, including cement retracting device, roller drive, conveying roller, support, dust cover； Described cement retracting device is arranged on below conveying roller and covers the lower space of all conveying rollers；Described roller transmission dress Put rack-mount, be connected with conveying roller；Described conveying roller has multiple, on the inside of support and is parallel to each other；It is described Support be arranged on roller both sides, and the house beam with fabricating yard or other fixed building components are fixedly connected；Described is dust-proof Cover is rack-mount, positioned at conveying roller top, shrouds the upper space of conveying roller；Described dust cover and export conveyer device Dust cover it is identical.

Described cement retracting device, including installing frame, cone, discharge nozzle, close wind feed valve；Described installing frame is arranged On cone top, it is connected with the support of dust removal conveyer device；Described cone is hollow body, is arranged on the bottom of installing frame, and With installing frame airtight connection；Described discharge nozzle is arranged on cone lower end, and upper end connected with cone inner space, bottom and cement Reclaim blast system connection；Described closes wind feed valve installed in middle part of the discharge nozzle near cone, inside discharge nozzle Spatial separation.

Further, described cement retracting device also includes sensor, and described sensor is leaned on installed in cone bottom Nearly discharge nozzle position, can detect and cement material is whether there is inside cone, so as to control to close the operating of wind feed valve.

Described roller drive, including power section, worm gear, worm screw；Described power section is by motor and cycloid Pinwheel reducer is integrated, on the support of dust removal conveyer device；Described worm gear has multiple, the number of its quantity and conveying roller Amount is identical, is separately mounted to be fixedly connected on the axle of the identical one end of each conveying roller and with the axle of conveying roller；Described worm gear with Worm screw is meshed；Described worm screw by support worm screw bearing block be arranged on dust removal conveyer device support on, its one end with The power output shaft of power section is coaxially connected, can rotate around own axes under the drive of power section；Described worm screw Teeth portion be meshed with each worm gear.

Described conveying roller, including power transmission shaft, end plate, strut, support shaft；Described power transmission shaft is arranged on the outside of end plate, It is vertical with end plate and concentric；Described end plate is located at the two ends of strut, is round sheet body；Described strut is held installed in two Between plate；Described strut has multiple, and the circumferencial direction in end plate is uniformly distributed；Described support shaft is arranged on and power transmission shaft It is on the outside of relative other end end plate and vertical with end plate and concentric.

Described variable bit conveyer device, including fixed track, first-level transport band, chute, pulley, connecting rod, two grades defeated Send band, suspension bracket, mobile device；Described fixed track is arranged in the fixing component of the system place building；Described consolidates Determining track has two to be arranged in parallel；Described first-level transport band is flat belt conveyer device, and one end is connected with dust removal conveyer device, The other end is connected with two-stage conveying band；Described chute is arranged on the both sides of first-level transport band, and parallel with conveyer belt plane；Institute The pulley stated is arranged in chute, can roll and can not depart from chute again in chute；Described connecting rod one end is connected with pulley Connect, the other end is hinged with two-stage conveying band；Described two-stage conveying band is arranged on discharging opening one end of first-level transport band, with one-level Conveyer belt is mutually connected；Described suspension bracket is arranged on the both sides of two-stage conveying band, and lower end is fixedly connected with two-stage conveying band, upper end It is connected with mobile device；Described mobile device includes wheel and driving means, matches somebody with somebody installed in suspension bracket upper end and with fixed track Splice grafting is touched, and can do rolling movement on fixed track, can drive suspension bracket so as to drive two-stage conveying band along fixed during rolling Move in track direction.

Described chute, including side, base, position-limited edge；Described side has two, is arranged on the two ends on base, its The two ends of side connect respectively at base and position-limited edge；Described base is arranged on same one end of two sides, its bottom surface and side The lower surface on side is concordant；Described position-limited edge is arranged on the upper end of two sides, and one end is connected with side upper end, thereon plane with The upper end of two sides is concordant；Described position-limited edge has two, and the distance between free end end face of two position-limited edges is less than cunning The diameter of wheel wheel body, more than the diameter of the limit shaft of pulley.

Described pulley, including wheel body, limit shaft, roller bearing, pin-and-hole；Described wheel body is cylinder, and its diameter is less than cunning Two side inner distance of groove, more than the distance between two position-limited edges, the length of described wheel body is less than or equal on chute base Face is the distance between to below position-limited edge；Described limit shaft is arranged on wheel body one end, coaxial with wheel body；Described limit shaft Diameter is less than two position-limited edge inner distances on chute；Thickness of the length of described limit shaft more than chute position-limited edge；It is described Roller bearing be located at limit shaft one end, it is concentric with limit shaft；Described pin-and-hole is arranged on the end of roller bearing, hangs down with the axis of roller bearing Directly.

Described dust arrester, including dust collection cover, sweep-up pipe, connector, dust flue；Described dust collection cover is arranged on dust suction Below pipe, and above discharging opening one end of the two-stage conveying device of variable bit conveyer device, it is thin wall cavity body；Described Sweep-up pipe one end is arranged on the top of dust collection cover, and dust collection cover inner space, the other end are socketed in inside dust flue, can be in row Stretching motion is done in dirt pipe；Described connector tubular article, its one end and dust suction pipe box made by flexible thin-walled gastight material Connect, the other end and dust flue are socketed, its length maximum moving distance in the dust flue more than sweep-up pipe；Described dust flue socket On sweep-up pipe, there can be relative motion with sweep-up pipe.

Further, described dust arrester also includes blower fan, described assembling at the middle part of sweep-up pipe, two ends with Sweep-up pipe is tightly connected.

Described transition dust cover, including cover body, installing plate, fixing hole；Described cover body is made up of flexible thin-walled material, Can fold and stretch；Described installing plate has multiple, positioned at the lower end of cover body；Described fixing hole is arranged on a mounting board, For through hole.

Beneficial effect

The beneficial effects of the present invention is, the environmental pollution of bagged cement winged Yang Zaocheng of cement in entrucking can be reduced With the waste of cement.

Description of the drawings

Fig. 1 is the structural representation of the present invention

1. packed water hopper dredger, 2. export conveyer device, 3. dust removal conveyer device, 4. variable bit conveyer device, 5. dedusting dress Put.

Fig. 2 is the structural representation of export conveyer device

21. frames, 22. power set, 23. conveyer belts, 24. dust covers.

Fig. 3 is the structural representation of the dust cover of export conveyer device

241. side walls, at the top of 242., 243. observation windows, 244. rapid-assembling/disassembling mouths.

Fig. 4 is the structural representation of dust removal conveyer device

31. cement retracting devices, 32. roller drives, 33. conveying rollers, 34. supports, 35. dust covers.

Fig. 5 is the structural representation of the cement retracting device of dust removal conveyer device

311. installing frames, 312. cones, 313. discharge nozzles, 314. close wind feed valve.

Fig. 6 is another kind of structural representation of the cement retracting device of dust removal conveyer device

311. installing frames, 312. cones, 313. discharge nozzles, 314. close wind feed valve, 315. sensors.

Fig. 7 is the structural representation of the roller drive of dust removal conveyer device

321. power sections, 322. worm gears, 323. worm screws.

Fig. 8 is dust removal conveyer device. the structural representation of conveying roller

331. power transmission shafts, 332. end plates, 333. struts, 334. support shafts.

Fig. 9 is the structural representation of variable bit conveyer device

41. fixation tracks, 42. first-level transport bands, 43. chutes, 44. pulleys, 45. connecting rods, 46. two-stage conveying bands, 47. Suspension bracket, 48. mobile devices.

Figure 10 is the structural representation of the chute of variable bit conveyer device

431. sides, 432. bases, 433. position-limited edges.

Figure 11 is the structural representation of the pulley of variable bit conveyer device

441. wheel bodys, 442. limit shafts, 443. roller bearings, 444. pin-and-holes.

Figure 12 is the structural representation of dust arrester

51. dust collection covers, 52. sweep-up pipes, 53. connectors, 54. dust flues.

Figure 13 is the another form of structural representation of dust arrester

51. dust collection covers, 52. sweep-up pipes, 53. connectors, 54. dust flues, 55. blower fans.

Specific embodiment

In order to further illustrate technical scheme, in conjunction with accompanying drawing, the specific embodiment of the present invention is illustrated；Such as Figure 12,13, make dust collection cover 51 from the steel plate of 1.5 millimeters of thickness in this example, using 0.5 millimeter of thickness galvanized steel plain sheet by its Edge rolling as sweep-up pipe 52, from 0.5 millimeter of thickness steel plate by its edge rolling, as dust flue 54, dust flue 54 it is interior External diameter of the footpath more than sweep-up pipe 52, and dust flue 54 is socketed in the outside of sweep-up pipe 52, by one end of sweep-up pipe 52 with gather dust The dust-exhausting port airtight connection of cover 51；Tubular, two ends internal diameter are sewn into as the material of connector 53 from canvas in this example Match respectively at the external diameter of sweep-up pipe 52 and dust flue 54, length is more than maximum of the sweep-up pipe 52 in 54 internal motion of dust flue Distance, and by the two ends of connector 53 respectively at sweep-up pipe 52 and dust flue 54 external diameter airtight connection；Dedusting dress is completed just Put 5 enforcement；As a result of connector 53 made by canvas, overcome between existing flexible dust flue 54 and sweep-up pipe 52 Dust reveal defect, while in turn ensure that its retractility can adapt to variable bit conveyer device 4 when unloading position changes with Its change, it is ensured that dust removing effects.

Further, in order to strengthen the dust removing effects of dust arrester 5, increase an axial-flow type wind at the middle part of sweep-up pipe 52 Machine, as blower fan 55, overcomes in a large amount of entruckings, the not good defect of the pick-up performance of dust arrester 5.

Such as Fig. 9,10,11, in this example, two are selected in this example as fixed track 41 from the general rail steel of the industry Track 41 is arranged in parallel, and is fixed on the house beam in bagged cement entrucking workshop；From the commercially available width that the industry is general Profile width of the degree more than bagged cement, the flat belt conveyer that length is adapted with entrucking workshop is respectively as first-level transport band 42 and two-stage conveying band 46；It is adapted with first-level transport band 42 from 10 mm length of thickness, width is adapted with pulley 44 Steel plate, respectively as the side 431 of chute 43, base 432, position-limited edge 433, is welded formation chute 43 together；From cunning 441 diameter of wheel body of wheel 44 is identical with 43 intracavity section width of chute, and length is identical with the cavity heights of chute 43；From spacing The diameter of axle 442 is more than chute position-limited edge 433 less than two 433 inner distances of position-limited edge on chute 43, the length of limit shaft 442 Thickness, matched with the brearing bore in connecting rod 45 from the diameter and length of roller bearing 443；From a diameter of the 4 of pin-and-hole 444 Millimeter through hole, is matched with the split pin of national standard；Composition described above pulley 44；From 12 millimeters of steel plate of thickness, length and width Degree and entrucking workshop spatial match, as suspension bracket 47, install the general commercially available driving of the industry in the upper end of suspension bracket 47 and drive Wheel is used as mobile device 48, and coordinates with fixed track 41, and the lower end of suspension bracket 47 is fixedly mounted on two-stage conveying with 46 both sides； The steel plate matched with 42 length from 100 mm length of width and the first-level transport of 12 millimeters of thickness as connecting rod 45, even One end of extension bar 45 is connected with pulley 44 by bearing, and the other end is hinged with two-stage conveying band 46, and two chutes 43 are pacified respectively First-level transport is mounted in 42 both sides, pulley 44 is arranged in chute 43, just completes the enforcement of variable bit conveyer device 4；By In employing chute 43 and pulley 44, it is ensured that first-level transport band 42 and two-stage conveying band 46 are one there is relative position change Level conveyer belt 42 discharging opening all the time with two-stage conveying band 46 conveyer belt position determination, it is to avoid bagged cement fall two grades it is defeated Send and occur with the situation outside 46, in turn ensure that two conveyer belts easily complete Telescopic, adapt to entrucking on entrucking vehicle The change in location that the change of process is produced.

Such as Fig. 8,3 millimeters of thickness in this example, is selected, the steel plate that 400 millimeters of diameter selects two as end plate 332, in this example Individual end plate 332, is separately mounted to the two ends of strut 333；The round steel of 600 millimeters of 8 mm length of diameter is selected in this example as support Bar 333, adopts 8 struts 333 on each conveying roller 33, between two end plates 332 and vertical with end plate 332 fixed Connection, and be evenly distributed in the concentric circumferences of end plate 332 along end plate excircle；From 30 millimeters of diameter, 80 millimeters of length Round steel respectively as power transmission shaft 331 and support shaft 334, by its respectively with the outer surface of two end plates 332 namely with strut 333 The opposite of mounting surface be vertically fixedly connected, just complete the enforcement of conveying roller 33；As a result of the composition of multiple struts 333 The main body of conveying roller 33, can realize conveying of the cement by conveying roller 33 of being scattered that will be adhered to outside bagged cement, by support Gap between bar 333 is dropped in the bottom of conveying roller 33, and then falls in cement retracting device 31, has both eliminated outside bagged cement Finished ground cement can be reclaimed by the finished ground cement in portion again, also just serve reduction environmental pollution, reduce the function of wasting.

Such as Fig. 7, combined with cycloidal planetary gear speed reducer as power section 321 from vertical machine in this example, so reduced Space hold, it is easy for installation；From national standard turbine and worm respectively as worm gear 322 and worm screw 323, each conveying roller One worm gear 322 is installed on the power transmission shaft 331 of 33 same one end, and the specification of each worm gear 322 is identical, by worm screw 323 are arranged on support 34 by bearing and ensure that all of worm gear 322 all is wanted to engage with worm screw 323, so ensure that institute The direction of rotation of some worm gears 322 is identical, can realize the step-by-step movement conveying of bagged cement.

Such as Fig. 5, in this example from 1 millimeter of thickness steel plate is by its bending and is welded into installing frame 311 and cone 312, Discharge nozzle 313 is installed in the bottom of cone 312, in this example from 1 millimeter of thickness steel plate bending into tubulose as discharge nozzle 313, Install at the middle part of discharge nozzle 313 and close wind feed valve 314, in this example, supply is sent from the general commercially available powder-granule material wind of the industry That what is commonly used in system closes wind feed valve as wind feed valve 314 is closed, and its advantage is to be prevented from the unordered of finished ground cement to fly upward, together When ensure blast system normal work.

Such as Fig. 6, further, for save energy, when falling instantly the cement in water cone body 312 and reaching certain amount, Just start and close wind feed valve 314, and the cement in cone 312 is not when reaching the quantity of setting, closing wind feed valve 314 does not start, Material Sensor 315 is installed in the adjacent bottom portions of cone 312, when the cement in cone 312 reaches the position of sensor 315, Sensor 315 sends signal, and is transferred to the control system of whole system, and control system instruction is closed wind feed valve 314 and started, and one It is automatically stopped after fixing time, which offers a saving substantial amounts of electric energy.

Such as Fig. 3, in this example from 1 millimeter of thickness steel plate, be bent into it is U-shaped, as side wall 241 and top 242； Window is opened up on side wall 241 or top 242, and is closed using pmma material, as observation window 243；In side wall 241 bottom arranges 12 millimeters of width, and the vertical cut (V. cut) that 30 millimeters of depth, 300 millimeters of spacing distance are covered with whole side wall 241 Bottom lengths direction；Transverse groove is opened up at the top of breach and is connected with vertical cut (V. cut), combination forms inverted L shape, such conduct Rapid-assembling/disassembling mouth 244, the mounting post in frame 21 on such rapid-assembling/disassembling mouth 244 and export conveyer device 2 coordinate, will be dust-proof The rapid-assembling/disassembling mouth 244 of cover 24 snaps in the mounting post in frame 21, then laterally urges dust cover 24, just can Fast Installation dust cover 24, reverse operating, it becomes possible to quickly pull down dust cover 24 so can avoid airborne dust, and energy when realizing that bagged cement is conveyed It is enough to realize the detection to course of conveying and quickly keep in repair and adjust.

Such as Fig. 4, from the general conveyor belt support of the industry as support 34, from the dust cover of export conveyer device 2 24 used as the dust cover 35 in this example；By cement retracting device 31, roller drive 32, conveying roller 33, dust cover 35, install On support 34, the enforcement of dust removal conveyer device 3 is just completed；Have an advantage in that while airborne dust is prevented, can realize again The recovery of the cement outside bagged cement sack is sticked to, environmental pollution is reduced and cement is wasted.

Such as Fig. 2, from the general flat belt conveyer of the commercially available industry as conveyer belt 23 in this example, according to packed water General layout in hopper dredger 1, welds corresponding frame 21, from the integrated reductor of motor structure as power set 22, will be dust-proof Cover 24 is arranged on the top of conveyer belt 23, just completes the enforcement of export conveyer device 2；Have an advantage in that the airborne dust of control cement From the beginning of warehouse, it becomes possible to reduce the airborne dust of whole working region.

Such as Fig. 1, export conveyer device 2 is arranged on into the inside of packed water hopper dredger 1 and be connected with the external world, its export conveying is filled Put 2 discharging opening to be located above the charging aperture of dust removal conveyer device 3, and covered by transition dust cover；Dust removal conveyer device 3 is pacified The rear lower of export conveyer device 2 is mounted in, and cement retracting device 31 is sent back to receipts cement system with cement production enterprise entirety wind System connection, the discharging opening of dust removal conveyer device 3 is located at the charging aperture of variable bit conveyer device 4, conveyer device 4 will be can be changed into It is lifted on the crossbeam in entrucking area and fixed, the charging aperture of its one-level conveyer belt 41 is located under the discharging opening of dust removal conveyer device 3 Side, dust arrester 5 is arranged on and be can be changed into above the discharge outlet of the two-stage conveying with 46 of conveyer device 4, and by dust arrester 5 Dust flue and cement production enterprise entirety wind send receipts cement system back to and be connected, just complete enforcement of the invention.

Using when, bagged cement is put into export conveyer device 2 from packed water hopper dredger 1, under the protection of dust cover 24, bag Cement outside dress cement will not fly upward the aerial of working region；By export conveyer device 2, bagged cement is transported to On dirt conveyer device 3, by the vibrations of dust removal conveyer device 3, the cement outside bagged cement is shaken off to cement recovery system, Plus the effect of dust cover 35 and its transition dust cover, the cement outside bagged cement will not fly upward the aerial of working region； By dust removal conveyer device 3, bagged cement is sent on variable bit conveyer device 4, according to device bagged cement on haulage vehicle Process, by entrucking, operator operate, and convert the position of the discharging opening of variable bit conveyer device 4, to adapt in haulage vehicle The entrucking of upper diverse location, now dust arrester 5 is positioned at same position and same with the discharge outlet of variable bit conveyer device 4 all the time Moved further, it is ensured that discharge outlet is flown upward cement due to the part of vibrations generation and reclaimed by dust arrester 5, reduces environmental pollution Waste with cement.

Claims (1)

1. a kind of bagged cement loading system, including packed water hopper dredger, export conveyer device, dust removal conveyer device, variable bit are defeated Send device, dust arrester, transition dust cover；Described packed water hopper dredger is arranged on one end of export conveyer device；Described goes out Storehouse conveyer device is arranged at the discharging of packed water hopper dredger, and one end is connected with packed water hopper dredger, the other end and dust removal conveyer device Connection；Described dust removal conveyer device is arranged between export conveyer device and variable bit conveyer device, described dust removal conveying The two ends of device connect respectively at export conveyer device and variable bit conveyer device；Described variable bit conveyer device is arranged on and goes The discharge end of dirt conveyer device, described variable bit conveyer device are made up of multi-stage conveyance unit, and the position of its discharging opening can Change；Described dust arrester is arranged on the discharge end of variable bit conveyer device, and positioned at the top of the discharge end；Described mistake Cross dust cover be separately mounted to export conveyer device and dust removal conveyer device, dust removal conveyer device and variable bit conveyer device it Between, and the dust cover closing connection on above-mentioned conveyer device；Described variable bit conveyer device, including fixed track, First-level transport band, chute, pulley, connecting rod, two-stage conveying band, suspension bracket, mobile device；Described fixed track installed in this is In the fixing component of system place building；Described fixed track has two to be arranged in parallel；Described first-level transport band is flat skin Band conveyer device, one end are connected with dust removal conveyer device, and the other end is connected with two-stage conveying band；Described chute is arranged on one-level The both sides of conveyer belt, and it is parallel with conveyer belt plane；Described pulley is arranged in chute, and can roll in chute again can not Depart from chute；Described connecting rod one end is connected with pulley, and the other end is hinged with two-stage conveying band；Described two-stage conveying band peace Discharging opening one end of first-level transport band is mounted in, is mutually connected with first-level transport band；Described suspension bracket is arranged on the two of two-stage conveying band Side, lower end are fixedly connected with two-stage conveying band, and upper end is connected with mobile device；Described mobile device includes wheel and driving Device, is coordinated installed in suspension bracket upper end and with fixed track and is contacted, and can do rolling movement on fixed track, can during rolling Suspension bracket is driven so that two-stage conveying band is driven along fixed track direction movement；It is characterized in that：Described chute, including side, Base, position-limited edge；Described side has two, is arranged on the two ends on base, and the two ends of its side are respectively at base and position-limited edge Connection；Described base is arranged on same one end of two sides, and its bottom surface is concordant with the lower surface of side；Described position-limited edge sets The upper end two sides is put, one end is connected with side upper end, and plane is concordant with the upper end of two sides thereon；Described is spacing While have two, diameter of the distance between the free end end face of two position-limited edges less than pulley wheel body, more than the limit shaft of pulley Diameter.