CN219972856U - Asphalt pavement reclaimed material feeding pretreatment device - Google Patents

Abstract

The utility model provides a bituminous paving reclaimed materials throws material preprocessing device, its reclaimed materials supply warehouse and crushing screening unit that sets up at bituminous paving regeneration station between, reclaimed materials supply warehouse sets up on the loading platform, and it includes with crushing screening unit sets up the hopper of same level ground, sets up first conveyer, the vibration bucket of hopper below and the setting of setting are in the second conveyer of vibration bucket below, the hopper is pasted and is leaned on the loading platform setting, and the loading platform is provided with the cement barricade, on the cement barricade, be provided with the bin gate of throwing hopper swivelling joint, throw the hopper top and be provided with the first grid fence of slope, throw the inside second grid fence that is provided with of hopper and first grid fence parallel. The asphalt pavement reclaimed material feeding pretreatment device provided by the utility model has the advantages that most of the sticky and hardened and agglomerated materials are crushed in the feeding stage, and the difficulty of daily maintenance work of a feeding hopper by workers is reduced as a whole.

Description

Asphalt pavement reclaimed material feeding pretreatment device

Technical Field

The utility model relates to the technical field of asphalt pavement recycling, in particular to a feeding pretreatment device for asphalt pavement recycling materials before crushing and screening at a site.

Background

Asphalt pavement is adopted for domestic high-grade highways, and in the construction process, the asphalt pavement is generally designed and built according to three layers of a cushion layer, a base layer and a surface layer. The bedding layer is generally made of natural gravel or macadam, the base layer is the cement stabilized macadam base layer most commonly, the surface layer is also generally divided into three layers (upper layer, middle layer and lower layer), the performances are sequentially increased from bottom to top, and the construction is carried out by adopting coarse-grain asphalt mixture to fine-grain asphalt mixture. Specifically, in the industry standard document "technical Specification for Highway asphalt pavement construction" (JTG F40-2004), there are corresponding regulations and design specifications for coarse aggregate, fine aggregate, and various mixture-level proportions.

Because of the artificial factors such as traffic flow increase, vehicle overload and the like and the influence of natural factors such as weather, climate and the like, the asphalt pavement is inevitably damaged, and the asphalt pavement to be repaired is firstly cleaned and then re-paved according to the design requirement. In the process of repairing and reforming the asphalt pavement, a great amount of waste pavement reclaimed materials are inevitably generated due to the need of cleaning the original damaged asphalt pavement (particularly the surface layer), and the asphalt pavement reclaimed materials can be reused as road materials after treatment due to the fact that the asphalt pavement reclaimed materials contain various coarse and fine aggregates, so that the asphalt pavement reclaimed materials have high utilization value. The asphalt pavement regenerating technology is one technological process of re-mixing old asphalt pavement to be repaired, regenerant, new asphalt material, new aggregate, etc in certain proportion to obtain regenerated asphalt mixture with certain road performance and re-paving road surface with the mixture. Through pavement regeneration, the pavement can not only meet the pavement performance requirements again, save a large amount of material resources and funds and reduce the engineering cost, but also avoid the pollution of waste materials to the environment, realize the industrial circular economy and promote the ecological environment protection, is a specific practice for implementing the strategic measure of the 'saving-type society', and has very remarkable social and economic benefits.

Asphalt pavement regeneration can be classified into cold regeneration and hot regeneration according to the regeneration mixture blending and the construction temperature. In the cold regeneration process, the old road milling, the mixing and the paving of new and old materials are carried out at normal temperature, and emulsified asphalt or foam asphalt is usually adopted as the cold regeneration binder; in the thermal regeneration process, the old pavement is milled and the new and old materials are mixed and heated. According to different construction occasions and construction processes, the asphalt pavement regeneration can be divided into plant mix regeneration and in-situ regeneration. The difference between the on-site regeneration and the plant-mix regeneration is that the on-site regeneration is performed on the old road surface on the site where the mixing process occurs, and the plant-mix regeneration is performed in the mixing plant.

The applicant belongs to a key enterprise as a Guizhou high-speed group, bears the maintenance work of most high-speed and high-grade roads in Guizhou provinces, adopts different asphalt pavement regeneration technologies according to the characteristics of each area when the asphalt pavement regeneration technology is applied to daily maintenance work, and adopts a plant mix heat regeneration technology to design and construct an asphalt pavement maintenance base as an asphalt pavement regeneration station in a 'Wanshi high-speed' sweetgum section.

In the process of digging and recycling the old asphalt pavement, the self-propelled equipment can greatly improve the digging and recycling efficiency, for example, a pavement milling machine provided by Chinese patent CN102383366A or a domestic pavement milling machine provided by Chinese patent CN102619158B and other technical schemes are widely applied in production, and in the traditional asphalt pavement recycling technology, the milling and planing of the pavement are not layered, and the obtained asphalt pavement recycled materials are uniformly transported to a station for crushing and screening to obtain asphalt-containing aggregates of all levels. Along with the development of milling control technology and mobile screening technology, a conventional pavement reclaimed material treatment system built in a station, for example, a 'reduction and regeneration system of pavement surface milling materials' provided by Chinese patent CN202323634U, a 'asphalt concrete reclaimed material recovery device' provided by Chinese patent CN215441284U and other technical schemes are provided with a multi-stage screening device, so that a storage bin is only used for material storage and is not used.

In the maintenance process of 'kernel hope high speed', the applicant selects a layered milling and on-site pre-screening mode to obtain an asphalt pavement reclaimed material, namely, a pavement milling machine is firstly used for milling and collecting an upper layer, a middle layer and a lower layer of a pavement respectively, a movable crushing and screening device is arranged on an engineering site in a matching manner to carry out preliminary crushing and screening on the collected reclaimed materials of the upper layer, the middle layer and the lower layer respectively, so that the reclaimed materials of the upper layer, the middle layer and the lower layer are obtained respectively, and are conveyed to a sweetgum maintenance base to carry out subsequent recovery treatment.

The process of carrying out preliminary crushing screening on the engineering site can lead the obtained pavement reclaimed materials to carry out preliminary sorting, but the pavement reclaimed materials inevitably contain large stones, iron nails and other metal impurities in the transportation process and the loading and unloading stacking process of the site, and can generate the conditions of adhesion hardening, caking and the like, so when various asphalt pavement reclaimed materials need to be further crushed and screened to obtain all levels of aggregates, the pavement reclaimed materials need to be pretreated before being fed into crushing and screening equipment, and the impurities are removed and the caking is crushed as much as possible. The applicant selects the vertical shaft impact stripper with the model of US322C.0 of Fujian southern road surface mechanical Co., ltd.) as crushing equipment in the crushing screening unit of the sweetgum maintenance base project, and adopts the vibrating screen with the model of 2SDL2024B.0 as centralized screening equipment, so that compared with the technical schemes such as China patent CN202323634U and China patent CN215441284U, the whole system is simplified, but the problems of adhesion, caking, large stones and other impurities can be solved as much as possible before materials are put into the crushing screening unit, and the stable operation of the crushing screening unit can be better ensured.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a pretreatment device for recycling materials and feeding materials of asphalt pavement, so as to reduce or avoid the problems.

In order to solve the technical problems, the utility model provides an asphalt pavement reclaimed material feeding pretreatment device, which is arranged between a reclaimed material supply warehouse and a crushing and screening unit of an asphalt pavement reclaimed station, wherein the reclaimed material supply warehouse is arranged on a feeding platform which is 1.8 meters higher than the horizontal ground where the crushing and screening unit is arranged, the reclaimed material feeding pretreatment device is used for pretreating asphalt pavement reclaimed materials before being fed into the crushing and screening unit, the reclaimed material feeding pretreatment device comprises a feeding hopper which is arranged on the same horizontal ground with the crushing and screening unit, a first conveying belt which is arranged below the feeding hopper, a vibrating hopper and a second conveying belt which is arranged below the vibrating hopper, the feeding hopper is arranged against the feeding platform, a cement retaining wall is arranged on one side of the feeding hopper, a bin gate which is rotatably connected with the feeding hopper is arranged on the cement retaining wall, a first grid which is detachably connected with the feeding hopper is arranged on the top, a second conveying belt which is parallel to the first grid is arranged inside the feeding hopper and is detachably connected with the first grid, the vibrating hopper is arranged on the first conveying belt which is used for conveying asphalt pavement reclaimed materials to be fed from the bottom of the vibrating hopper to the vibrating conveyor belt.

Preferably, the first grid bar is made by welding a plurality of first weft bars and a plurality of first warp bars on a first outer frame of a Chinese character 'ri'.

Preferably, the first outer frame is formed by welding steel plates with the thickness of 3mm and the width of 5cm, the first warp direction rods and the first warp direction rods are all made of steel plates with the thickness of 2mm and the width of 3-5cm, and the size of the first grid holes formed by the first warp direction rods and the first weft direction rods is 12cm multiplied by 4cm.

Preferably, the first warp beam is welded to the first outer frame in a width direction, and the first weft beam is welded to the first outer frame and the first warp beam in a thickness direction.

Preferably, the first grid fence inclines towards one side of the feeding platform, and an included angle alpha between the first grid fence and the horizontal plane is 30 degrees.

Preferably, the second grating fence is formed by welding a plurality of second weft bars and a plurality of second warp bars on a second outer frame in a Chinese character 'ri' shape, the second outer frame is formed by welding steel plates with the thickness of 3mm and the width of 5cm, the second weft bars and the second warp bars are all prepared by adopting steel plates with the thickness of 2mm and the width of 3-5cm, the second weft bars are welded on the second outer frame in the width direction, the second warp bars are welded with the second outer frame and the second weft bars in the thickness direction, and the size of the second grating holes formed by the second weft bars and the second warp bars is 12cm multiplied by 4cm.

Preferably, a distance between the first grid column and the second grid column in a vertical direction is 2 meters.

Preferably, the second grid fence is arranged close to one side of the feeding platform and is abutted against the top of the cement retaining wall.

Preferably, the lower part of the feeding hopper is provided with at least one disturbance rod.

Preferably, the disturbance rod is provided with a plurality of disturbance teeth penetrating in the axial direction.

Compared with the conventional station pavement reclaimed material processing system, the utility model has the greatest characteristics that the charging hopper is improved, in the conventional technical scheme, the charging hopper is only used for storing pavement reclaimed materials as bins, and in the utility model, because the station material is the reclaimed materials which are milled and planed in a layered manner and are primarily crushed and screened on the pavement, the material is respectively stored in different bins of a reclaimed material receiving bin when entering, the required pavement reclaimed materials are thrown into the charging hopper through a forklift as required only when the material is required to be produced, and the charging hopper is provided with the first grid bars and the second grid bars which are arranged in a staggered manner, so that plate caking can be crushed by utilizing the gravity of the material in the charging hopper in the charging process.

According to the asphalt pavement reclaimed material feeding pretreatment device provided by the utility model, through the site layout design of the relief fall, the crushing of most of the adhesion hardening and caking materials is completed in the feeding stage, and the difficulty of daily maintenance work of workers on the feeding hopper is reduced as a whole.

Drawings

The following drawings are only for purposes of illustration and explanation of the present utility model and are not intended to limit the scope of the utility model. Wherein,

FIG. 1 is a schematic view of the construction principle of an asphalt pavement recycling and feeding pretreatment device according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of the feeding hopper from the view angle a in fig. 1;

FIG. 3 is a schematic view of a portion of the structure of the view angle B in FIG. 1;

FIG. 4 is a schematic structural diagram of a first grid column of the view angle C in FIG. 2;

FIG. 5 is a schematic structural diagram of a second grid column of the view angle C in FIG. 2;

FIG. 6 is a schematic cross-sectional structural view of the perturbation bar of FIG. 2.

Description of the embodiments

For a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals.

FIG. 1 is a schematic view of the construction principle of an asphalt pavement recycling and feeding pretreatment device according to an embodiment of the present utility model; fig. 2 is a schematic structural diagram of the feeding hopper from the view angle a in fig. 1; in fig. 2, a broken line indicates a state when the bin gate is opened, and fig. 3 is a schematic view of a part of the structure of the view from the direction B of fig. 1; in fig. 3, the arrow indicates the direction of conveyance of the material, as shown in figs 1 to 3,

the utility model provides an asphalt pavement reclaimed material feeding pretreatment device which is arranged between a reclaimed material supply warehouse and a crushing and screening unit of an asphalt pavement reclaimed station, wherein the reclaimed material supply warehouse is arranged on a feeding platform, the feeding platform is about 1.8 meters higher than the horizontal ground where the crushing and screening unit is arranged, the feeding platform is used for pretreating asphalt pavement reclaimed materials before being fed to the crushing and screening unit, the asphalt pavement reclaimed material feeding pretreatment device comprises a feeding hopper 1 (arranged through a steel structure supporting frame) arranged on the same horizontal ground as the crushing and screening unit, a first conveying belt 2 arranged below the feeding hopper 1, a vibrating hopper 3 (arranged through the steel structure supporting frame and not shown in the figure) and a second conveying belt 4 arranged below the vibrating hopper 3, the feeding hopper 1 is arranged against the feeding platform, a cement retaining wall is arranged on one side of the feeding hopper 1, a bin door 11 rotatably connected with the feeding hopper 1 is arranged on the cement retaining wall, a first conveying hopper 12 which is arranged on the top of the feeding hopper 1 and is connected with an inclined first conveying belt 2, a vibrating hopper 3 is arranged on the first conveying hopper 1, an electromagnet is arranged on the bottom of the first conveying hopper 2, and the vibrating hopper 1 is connected with the first conveying belt 4 in parallel to the bottom of the vibrating hopper 3, and the first conveying hopper 2 is arranged on the bottom of the vibrating hopper 1, and the first conveying belt is arranged on the vibrating hopper 2.

The feeding platform is about 1.8 meters higher than the horizontal ground where the crushing and screening unit is located, the reclaimed material incoming warehouse is arranged on the feeding platform, and the asphalt pavement reclaimed materials which are subjected to preliminary crushing and screening after milling and planing on the engineering site are respectively stored in different bins of the reclaimed material incoming warehouse, including, but not limited to, pavement reclaimed materials respectively obtained from an upper layer, a middle layer and a lower layer. And the recycled material obtained by milling the high-speed roadbed layer can also be contained.

Because the asphalt pavement reclaimed materials are mainly used for repairing after being regenerated, the usage amount of the asphalt pavement reclaimed materials is not very large every time, continuous production for 24 hours all the year round is not needed, and in actual production, the pavement reclaimed materials respectively obtained from the upper layer, the middle layer and the lower layer are respectively treated according to the requirements of the regenerated aggregate used as required.

For example, when the recycled road surface materials obtained from the upper layer are required to be processed, the recycled road surface materials can be shoveled from the corresponding bin of the recycled material receiving warehouse by utilizing a forklift on the feeding platform to be put into the feeding hopper 1,

fig. 4 is a schematic structural view of the first grid column with view angle C of fig. 2, in fig. 2, the direction of the arrow C is perpendicular to the plane of the first grid column 12, so fig. 4 is also a schematic structural view of the first grid column 12 when placed horizontally, in order to better describe the structural characteristics of the first grid column 12, as shown in fig. 1, 2 and 4, in fig. 4, a coordinate system is established with the direction of the hopper 1 toward the vibrating hopper 3 as the x axis and the direction of the hopper 1 toward the feeding platform as the y axis, the rod parallel to the x axis may be defined as a first weft rod 121, the rod parallel to the y axis may be defined as a first warp rod 122, that is, the first grid column 12 may be formed by welding a plurality of first weft rods 121 and a plurality of first warp rods 122 on a first outer frame 120 in a solar shape, the first outer frame 120 may be formed by welding steel plates with a thickness of 3mm and a width of 5cm, the first weft bars 121 and the first warp bars 122 may be made of steel plates with a thickness of 2mm and a width of 3-5cm, the first warp bars 122 are disposed on the first outer frame 120 in the x-y plane in the width direction, the first weft bars 121 are welded to the first outer frame 120 and the first warp bars 122 in the thickness direction through lugs (not shown) and other structures, and in the preparation process, the first grid holes 123 formed by the first warp bars 122 and the first weft bars 121 may be ensured to be 12cm×4cm in size, the length direction is in the x-axis direction, the grid holes 123 may be ensured to be formed by primarily crushing and screening the upper layer, the middle layer, the road surface reclaimed materials of lower floor can fall into smoothly throw hopper 1, and at the in-process of blanking from the forklift bucket, can with first grid fence 12 is through the collision, carries out the split to the reclaimed materials of part adhesion hardening, caking, see shown in fig. 2 and fig. 4, first grid fence 12 orientation loading platform one side slope, contained angle alpha of first grid fence 12 and horizontal plane can be 30, can ensure like this can not pass through structures such as the jumbo size stone or the board caking of grid hole 123 can be convenient drop on the loading platform.

The second grid 13 detachably connected in parallel to the first grid 12 is disposed in the hopper 1, as shown in fig. 5, and in fig. 2 and 5, an x-y coordinate system identical to that of fig. 4 is adopted in fig. 5, so that the second grid 13 is conveniently defined and described, as shown in fig. 4 and 5, the second grid 13 may be made of the same material as the first grid 12, that is, the second grid 13 may be made by welding a plurality of second weft bars 131 and a plurality of second warp bars 132 on a second outer frame 130 with a solar view angle, the second outer frame 130 may be formed by welding a steel plate with a thickness of 3mm and a width of 5cm, the second weft bars 131 and 132 may be made of steel plates with a thickness of 2mm and a width of 3-5cm, the second grid 13 and the first grid 12 may be made of the same material as the second weft bars 131 and the second warp bars 132 may be formed by welding the second weft bars 131 and the second outer frame 132 with a thickness of 3mm and the second warp bars 132 in the same dimension as the second outer frame 132, and the second warp bars may be formed by welding the second weft bars 132 in the second outer frame 130 and the second outer frame 132 in the same direction. Since the second grating 13 is parallel to the first grating 12, the angle α between the second grating 13 and the horizontal plane may be 30 °.

The mounting positions of the inner wall of the charging hopper 1 corresponding to the first grid column 12 and the second grid column 13 are provided with step surfaces (not shown in the figure) made of 5mm thick steel plates for supporting and mounting, so long as the supporting strength of the first grid column 12 and the second grid column 13 can be ensured, and the mounting structures are convenient to fix through structures such as bolts, and the like, and therefore, the mounting structures are conventional technical means in the art, and are not repeated herein.

The interval between the first grating bars 12 and the second grating bars 13 in the vertical direction is about 2 meters, so that the recycled materials falling into the feeding hopper 1 from the first grating holes 123 collide with the second grating bars 13 under the action of gravity again, and the partially-adhered and hardened and agglomerated recycled materials are further split. The relatively vertical arrangement of the first and second grid holes 123, 133 may also facilitate further shielding of large-sized stone or slab agglomerations by the second grid holes 133. The second grid fence 13 is close to one side of the feeding platform and can be set to be attached to the top of the cement retaining wall, so that large-size stones or hardening blocks sliding down from the second grid fence 13 can be conveniently concentrated on one side of the bin gate 11, the bin gate 11 is opened when the bin gate 11 needs to be cleaned in the bin hopper 1, the large-size stones or hardening blocks intercepted by the second grid fence 13 can be mostly automatically slid down to the feeding platform, and materials clamped in the first grid holes 123 and the second grid holes 133 are conveniently cleaned manually from the bin gate 11 through the inner cavity of the bin hopper 1.

Referring to fig. 3, the feeding port at the top of the feeding hopper 1 and the discharging port at the bottom are eccentrically arranged, that is, the feeding port at the top of the feeding hopper 1 and the discharging port at the bottom are not coaxial, so that the influence of gravity of materials stacked in the feeding hopper 1 can be reduced, and the discharging speed of the discharging port can be controlled.

The inner cavity of the charging hopper 1 has a volume of about 6 cubic meters, that is, even if a 50-type forklift (with a bucket capacity of about 3 cubic meters) is used for charging, the charging hopper 1 can leave enough space for the material to fall off.

Fig. 6 is a schematic diagram of the cross-sectional structure of the disturbance rod of fig. 2, and referring to fig. 2 and 6, in order to avoid the occurrence of special reasons such as equipment failure, when the material needs to be stopped from the feeding hopper 1, after the material is still stacked in the feeding hopper 1, the material is not smooth during discharging again, at least one disturbance rod 14 may be disposed at a position, close to the discharge hole, of the lower portion of the feeding hopper 1, the disturbance rod 14 is provided with a plurality of disturbance teeth 141 in a penetrating manner in the axial direction, so that the stacked material can be disturbed by the rotation of the disturbance rod 14, and the material is facilitated to fall from the discharge hole, and the disturbance rod 14 may be made of a metal bar with a diameter of 30-80 mm.

Referring to fig. 3, the first conveyor belt 2 includes a horizontal section for receiving the material falling from the discharge port of the hopper 1, and an electromagnet 5 disposed above the horizontal section, so that metal impurities such as nails and screws in the material can be sucked out, and a lifting section for conveying the material to the vibrating hopper 3. Likewise, as shown in fig. 1 and 3, the second conveyor belt 4 also comprises a horizontal section for receiving material falling from the discharge opening of the vibrating hopper 3 and a lifting section for conveying the material to the crushing and screening unit. Belt conveying is a common technique in the field of solid material conveying and therefore is not described in detail herein.

The vibrating hopper 3 has a volume of about 1 cubic meter, and aims to facilitate more accurate control of feeding speed, and further separate large-size stones or hardened blocks in the materials conveyed by the first conveying belt 2, and the vibrating hopper can adopt a structure similar to the structure of a vibrating screen convenient to clean provided by Chinese patent CN211330185U, or can directly select a cold vibrating screen as the vibrating hopper. So long as the stone or the plate with the grain diameter larger than 40mm can be filtered.

As described in the background art, the technical scheme of the utility model is that the applicant adopts in the sweetgum maintenance base of "what is expected to be high-speed" construction, because Guizhou mountain is too, sweetgum maintenance base is still built according to mountain, if adopt such technical schemes as Chinese patent CN202323634U, chinese patent CN215441284U, the basic earthwork is very big, but adopt the technical scheme of the utility model, on one hand, the basic earthwork is reduced, on the other hand, the available ground potential difference, the easy construction of large-capacity throwing hopper 1, and through the ground potential difference, when maintaining the structure such as grid plate in throwing hopper 1, staff can also operate from one side of the loading platform very easily.

Compared with the conventional pavement reclaimed material processing system, the pavement reclaimed material processing system has the greatest characteristics that the material feeding hopper is improved, in the conventional technical scheme, the material feeding hopper is only used for storing pavement reclaimed materials as bins, in the utility model, because the station incoming materials are reclaimed materials which are milled and planed in a layered manner and primarily crushed and screened on the pavement, the incoming materials are respectively stored in different bins of a reclaimed material receiving bin when entering, and the required pavement reclaimed materials are fed into the material feeding hopper through a forklift as required only when production is required.

According to the asphalt pavement reclaimed material feeding pretreatment device provided by the utility model, through the site layout design of the relief fall, the crushing of most of the adhesion hardening and caking materials is completed in the feeding stage, and the difficulty of daily maintenance work of workers on the feeding hopper is reduced as a whole.

It should be understood by those skilled in the art that while the present utility model has been described in terms of several embodiments, not every embodiment contains only one independent technical solution. The description is given for clearness of understanding only, and those skilled in the art will understand the description as a whole and will recognize that the technical solutions described in the various embodiments may be combined with one another to understand the scope of the present utility model.

The foregoing is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model. Any equivalent alterations, modifications and combinations thereof will be effected by those skilled in the art without departing from the spirit and principles of this utility model, and it is intended to be within the scope of the utility model.

Claims (10)

1. The utility model provides a bituminous paving reclaimed materials throws material preprocessing device, its setting is in between reclaimed materials incoming warehouse and the crushing screening unit of bituminous paving regeneration station, its characterized in that, reclaimed materials incoming warehouse sets up on the charging platform, the charging platform is higher than the level ground at crushing screening unit place is 1.8 meters, and it is used for throwing in bituminous paving reclaimed materials to carry out the preliminary treatment before the crushing screening unit, it includes with the setting of crushing screening unit is in the same level ground throw hopper, setting is in first conveyer, the vibrating hopper of throwing hopper below and setting are in the second conveyer of vibrating hopper below, throw hopper subsides and lean on the charging platform sets up, the charging platform is in throwing hopper one side is provided with cement barricade the cement barricade is provided with throw hopper rotatable coupling's door, throw the hopper top be provided with the first grid of slope detachable connection, throw the inside be provided with first grid parallel second conveyer, first conveyer is used for with throwing in hopper to the electro-magnet is used for with the conveying hopper is in the second conveyer of vibrating hopper to retrieve the bituminous paving material from the bottom to the vibrating hopper is used for the conveying the vibrating conveyor to the road surface is with the vibrating hopper is with the bottom is reclaimed from the vibrating conveyor.

2. The asphalt pavement reclaimed material feeding pretreatment apparatus according to claim 1, wherein said first grid column is formed by welding a plurality of first weft direction rods and a plurality of first warp direction rods on a first outer frame of a Chinese character 'ri'.

3. The asphalt pavement reclaimed material feeding pretreatment device according to claim 2, wherein the first outer frame is formed by welding steel plates with the thickness of 3mm and the width of 5cm, the first warp direction rods and the first warp direction rods are both prepared by adopting steel plates with the thickness of 2mm and the width of 3-5cm, and the size of a first grid hole formed by the first warp direction rods and the first weft direction rods is 12cm multiplied by 4cm.

4. The asphalt pavement recycling and feeding pretreatment device according to claim 3, wherein said first warp beam is welded on said first outer frame in a width direction, and said first weft beam is welded with said first outer frame and said first warp beam in a thickness direction.

5. The asphalt pavement recycling and feeding pretreatment device according to claim 1, wherein said first grating column is inclined toward one side of said feeding platform, and an included angle α between said first grating column and the horizontal plane is 30 °.

6. The asphalt pavement reclaimed material feeding pretreatment apparatus according to claim 4, wherein said second grating bars are formed by welding a plurality of second weft bars and a plurality of second warp bars on a second outer frame shaped like a Chinese character ri, said second outer frame is formed by welding steel plates with a thickness of 3mm and a width of 5cm, said second weft bars and said second warp bars are both made of steel plates with a thickness of 2mm and a width of 3-5cm, said second weft bars are welded on said second outer frame in a width direction, said second warp bars are welded with said second outer frame and said second weft bars in a thickness direction, and said second grating holes formed by said second weft bars and said second warp bars are set to be 12cm x 4cm.

7. The asphalt pavement recycling feed pretreatment apparatus according to claim 1, wherein a distance between said first grid and said second grid in a vertical direction is 2 meters.

8. The asphalt pavement recycling and feeding pretreatment device according to claim 1, wherein one side of the second grid bar close to the feeding platform is arranged to be abutted against the top of the cement retaining wall.

9. The asphalt pavement recycling and feeding pretreatment device according to claim 1, wherein at least one disturbance rod is arranged at the lower part of the feeding hopper.

10. The asphalt pavement recycling and feeding pretreatment device according to claim 9, wherein the disturbance rod is provided with a plurality of disturbance teeth penetrating in an axial direction.