CN111504048A

CN111504048A - Recycled aggregate drying-machine with dust removal function

Info

Publication number: CN111504048A
Application number: CN202010333769.0A
Authority: CN
Inventors: 马驰; 曹震; 冯伟
Original assignee: Qinhuangdao Longcheng Road And Bridge Co ltd
Current assignee: Qinhuangdao Longcheng Road And Bridge Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-08-07
Anticipated expiration: 2040-04-24
Also published as: CN111504048B

Abstract

The invention discloses a recycled aggregate dryer with a dust removal function, and relates to the technical field of recycled aggregate drying equipment. The problem of when the exhaust column carries out convulsions dust removal to discharge gate department, steam after the combustor heating partly can be taken away by the exhaust column to lead to thermal loss, make drying-machine drying efficiency lower is solved. The invention has the effects of facilitating dust removal of the dryer during discharging, reducing heat loss and having higher drying efficiency.

Description

Recycled aggregate drying-machine with dust removal function

Technical Field

The invention relates to the technical field of recycled aggregate drying equipment, in particular to a recycled aggregate dryer with a dust removal function.

Background

The asphalt mixture is a mixture formed by mixing mineral aggregate and asphalt binder, the aggregate is mainly divided into primary aggregate and recycled aggregate, and the recycled aggregate refers to waste asphalt pavement reclaimed materials. Both the primary aggregate and the recycled aggregate need to be dried by drying equipment, and particularly after the recycled aggregate is dried, a large amount of dust is easy to appear in the discharging process because the recycled aggregate is fragile and easy to pulverize.

Referring to fig. 1, the conventional recycled aggregate dryer includes a drying cylinder 1, wherein a feed hopper 11 is disposed at one end of the drying cylinder 1, and a discharge port 13 is disposed at the other end thereof. The burner 12 is arranged at one end of the drying cylinder 1, which is provided with the discharge hopper, and the regenerated aggregate in the drying cylinder 1 is dried through the burner 12. In order to prevent a large amount of dust from being formed when the drying cylinder 1 is discharged from the discharge port 13, the discharge port 13 is connected with an exhaust pipe 14, one end of the exhaust pipe 14, which is far away from the discharge port 13, is connected with a dust remover 41, an exhaust fan 15 is installed on the exhaust pipe 14, and the combustor 12 and the exhaust fan 15 are both installed on a support frame (not shown in the figure) supported on the ground. When the drying cylinder 1 discharges from the discharge port 13, the exhaust fan 15 is started, the exhaust fan 15 pumps dust formed at the discharge port 13 into the exhaust pipe 14, and finally the dust enters the dust remover 41, so that the dust at the discharge port 13 is removed.

The above prior art solutions have the following drawbacks: burner 12 carries out the flame projecting stoving in the one end of discharge gate 13 towards drying cylinder 1, when exhaust column 14 carries out convulsions dust removal to discharge gate 13 department, the steam after burner 12 heats partly can be taken away by exhaust column 14 to lead to thermal loss, make drying-machine drying efficiency lower.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a recycled aggregate dryer with a dust removal function, which has the effects of facilitating dust removal of the dryer during discharging, reducing heat loss and having higher drying efficiency.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a regeneration aggregate drying-machine with dust removal function, includes a stoving section of thick bamboo, and the one end of a stoving section of thick bamboo is equipped with the combustor, and the one end that a stoving section of thick bamboo was equipped with the combustor is equipped with the discharging pipe, and a side of discharging pipe is connected with the air-blower, and a side of discharging pipe still is connected with the dust remover.

By adopting the technical scheme, when the recycled aggregate needs to be dried, the burner is started to heat and dry the recycled aggregate in the drying cylinder, the dried recycled aggregate is separated from the inside of the drying cylinder along the discharge pipe, the air blower is started while the recycled aggregate is discharged, the air blower blows air to the inside of the discharge pipe, and the dust in the discharge pipe can be blown into the dust remover by the air, so that the dust generated during discharging of the discharge pipe is removed;

simultaneously the few wind that the air-blower blew off gets into the section of thick bamboo of drying along the discharging pipe in, because discharging pipe and combustor are located the same one end of a section of thick bamboo of drying, consequently the combustor can be to the direction motion of keeping away from the combustor under the effect of wind power to the heat that produces in the section of thick bamboo of drying, the heat that reduces the combustor and produce is along the problem of discharging pipe loss along with regeneration aggregate, make the section of thick bamboo of drying in apart from the combustor regeneration aggregate also earlier heated, make the drying efficiency of drying-machine higher.

The present invention in a preferred example may be further configured to: the discharge pipe is arranged vertically and downwards.

Through adopting above-mentioned technical scheme, the vertical downward buckling of one end of drying section of thick bamboo is kept away from to the discharging pipe, because steam is upwards floating, so reduced the heat that the combustor produced and run off the emergence of the condition downwards along the discharging pipe.

The present invention in a preferred example may be further configured to: fixedly connected with blowing pipe between air-blower and the discharging pipe, be connected with the transition pipe between dust remover and the discharging pipe, the transition pipe is located the discharging pipe and keeps away from the one side of blowing pipe, and transition pipe and blowing pipe all set up towards the orientation downward sloping of keeping away from the air-blower.

By adopting the technical scheme, in the process that the recycled aggregate mixed with dust falls downwards, the transition pipe blows downwards to enable the dust to enter the transition pipe along with the wind easily, and finally enters the dust remover, and the blowing pipe blows downwards to reduce the occurrence of the situation that the dust is blown back into the drying cylinder; the transition pipe is arranged in a downward inclined manner, so that dust can easily slide into the dust remover along the transition pipe.

The present invention in a preferred example may be further configured to: the transition pipe and the blowpipe are positioned on the same straight line.

Through adopting above-mentioned technical scheme, the blowing pipe is located the collinear with the transition pipe and makes the dust be blown into in the transition pipe more easily.

The present invention in a preferred example may be further configured to: one end fixedly connected with transition case that the discharging pipe was kept away from to the transition pipe, the one side that the discharging pipe was kept away from to the transition case is connected with the dust remover.

Through adopting above-mentioned technical scheme, when the air-blower blows to discharging pipe inside, dust in the discharging pipe and some light regeneration aggregate of quality are blown into the transition case by wind, because the transition case is far away from the air-blower than the discharging pipe apart from the air-blower, so the wind-force that receives in the transition case is less than the wind-force that the discharging pipe received, consequently the regeneration aggregate that is blown into in the transition case is detained at the transition incasement because of receiving the wind-force is less, and the dust receives in the wind-force influence entering dust remover, thereby get rid of the dust that produces when the discharging pipe ejection of compact, prevent that some light regeneration aggregate of quality from being blown into and producing destruction to the dust remover in the dust remover.

The present invention in a preferred example may be further configured to: the junction fixedly connected with of transition pipe and discharging pipe is equipped with the baffler of a plurality of meshs.

Through adopting above-mentioned technical scheme, when the air-blower was blown to the discharging pipe, the baffler stopped some great regeneration aggregate in the discharging pipe, made great regeneration aggregate normally along the discharging pipe ejection of compact, prevented that it from following in the transition pipe gets into the transition case, influencing the discharging pipe and normally going out the efficiency of regeneration aggregate.

The present invention in a preferred example may be further configured to: one end of the transition box, which is close to the dust remover, is fixedly connected with a baffle plate, and a plurality of through holes are arranged on the baffle plate.

Through adopting above-mentioned technical scheme, the through-hole on the baffle is more the barrier plate on the mesh little, and the baffle can block that the regeneration aggregate that gets into in the transition case gets into the dust remover along dust removal pipe, prevents that it from producing the destruction to the dust remover.

The present invention in a preferred example may be further configured to: the lower surface of the transition box is provided with a bearing cavity, and one surface of the bearing cavity, which is close to the dust remover, inclines towards the direction close to the dust remover.

Through adopting above-mentioned technical scheme, after some regeneration aggregate that the quality is lighter got into the transition case under the effect of wind, partial regeneration aggregate can fall to accepting in the cavity, and fall to accepting in the regeneration aggregate in the cavity the dust that is mingled with can follow the easier rebound of the inclined plane of accepting the cavity to get rid of in getting into the dust remover through the dust removal pipe at last, have and clear away the comparatively comprehensive effect of dust.

The present invention in a preferred example may be further configured to: the bearing cavity is detachably connected with the transition box.

Through adopting above-mentioned technical scheme, when the cavity was accepted in the needs clearance regeneration aggregate, will accept cavity and transition case and dismantle the separation to the regeneration aggregate in accepting the cavity is cleared up.

The present invention in a preferred example may be further configured to: the baffle inclines towards the direction close to the bearing cavity.

By adopting the technical scheme, the baffle inclines towards the direction close to the receiving cavity, so that aggregate blown on the baffle by wind power can slide into the receiving cavity along the baffle to be collected.

In summary, the invention includes at least one of the following beneficial technical effects:

1. a small part of wind blown out by the blower enters the drying cylinder along the discharge pipe, and the discharge pipe and the burner are positioned at the same end of the drying cylinder, so that the heat generated by the burner in the drying cylinder can move towards the direction far away from the burner under the action of the wind force, the problem that the heat generated by the burner runs off along the discharge pipe along with the regenerated aggregate is reduced, the regenerated aggregate far away from the burner in the drying cylinder can be heated earlier, and the drying efficiency of the dryer is higher;

2. one end of the discharge pipe, which is far away from the drying cylinder, is vertically bent downwards, and the heat generated by the burner is reduced because the hot gas floats upwards;

3. in the process that the recycled aggregate is mixed with dust and falls down, the transition pipe blows downwards to enable the dust to enter the transition pipe along the wind easily, and finally enters the dust remover, and the blowing pipe blows downwards to reduce the situation that the dust is blown back into the drying cylinder; the transition pipe is arranged in a downward inclined manner, so that dust can easily slide into the dust remover along the transition pipe.

Drawings

Fig. 1 is a schematic structural diagram of the background art.

Fig. 2 is a schematic view showing the overall structure of the dryer according to the embodiment.

FIG. 3 is a schematic diagram of the internal structure of the transition box according to the embodiment.

FIG. 4 is a schematic structural diagram illustrating the position of the position limiting plate according to the embodiment.

Fig. 5 is a partially enlarged schematic view of a portion a in fig. 3.

In the figure, 1, a drying drum; 11. a feed hopper; 12. a burner; 13. a discharge port; 14. an exhaust pipe; 15. an exhaust fan; 2. a discharge pipe; 21. a blower; 22. a blowpipe; 3. a transition box; 31. a transition duct; 32. a receiving cavity; 33. a slide bar; 34. a support plate; 35. a sliding groove; 36. a limiting plate; 4. a dust removal pipe; 41. a dust remover; 5. a barrier plate; 51. mesh openings; 6. a baffle plate; 61. and a through hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2, the regenerative aggregate dryer with a dust removal function disclosed by the invention comprises a drying cylinder 1, wherein one end of the drying cylinder 1 is fixedly connected with a feed hopper 11, one end of the drying cylinder 1, which is far away from the feed hopper 11, is provided with a burner 12, and the burner 12 penetrates through the end surface of the drying cylinder 1, extends into the drying cylinder 1 and is sprayed towards the inside of the drying cylinder 1, so that the regenerative aggregates in the drying cylinder 1 are heated and dried. One end of the drying cylinder 1 provided with a burner 12 is fixedly connected with a square discharging pipe 2. The one end that the section of thick bamboo 1 was dried away from to discharging pipe 2 is vertical buckles downwards, because steam is upwards floating, so reduced the heat that the combustor produced and followed discharging pipe 2 and run off the emergence of the condition downwards.

When the recycled aggregate needs to be dried, the recycled aggregate is poured into the feeding hopper 11, the recycled aggregate enters the drying cylinder 1 along the feeding hopper 11, the burner 12 is started to heat and dry the recycled aggregate in the drying cylinder 1, and the dried recycled aggregate is separated from the inside of the drying cylinder 1 along the discharging pipe 2.

As shown in fig. 2, a blowpipe 22 is fixedly connected to one side surface of the discharge pipe 2, and an air blower 21 is fixedly connected to one end of the blowpipe 22 remote from the discharge pipe 2. One side fixedly connected with transition pipe 31 that blowing pipe 22 was kept away from to discharging

pipe

2, 2 one end fixedly connected with transition case 3 of discharging pipe are kept away from to transition case 31, and transition case 3 keeps away from one side fixedly connected with dust removal pipe 4 of transition pipe 31, and the one end fixedly connected with dust remover 41 of transition case 3 is kept away from to dust removal pipe 4. The blowpipe 22 and the transition pipe 31 are both inclined downward in a direction away from the blower 21, and the blowpipe 22 and the transition pipe 31 are positioned on the same straight line, so that most of the wind blown by the blowpipe 22 enters the transition box 3 along the transition pipe 31, the occurrence of the situation that the dust is blown back into the drying cylinder 1 is reduced, and the blowpipe 22 and the transition pipe 31 are positioned on the same straight line, so that the dust is more easily blown into the transition pipe 31.

When the discharging pipe 2 discharges, and the blower 21 is started at the same time, the heavier recycled aggregate in the discharging pipe 2 is normally discharged along the discharging pipe 2 at this time. The air blown by the blower 21 is blown into the discharging pipe 2 along the blowing pipe 22, and the dust and some light recycled aggregates in the discharging pipe 2 are blown to the transition pipe 31 by the air and enter the transition box 3; because the transition box 3 is far away from the blower 21 than the discharge pipe 2 is far away from the blower 21, the wind power received in the transition box 3 is smaller than that received by the discharge pipe 2, so the recycled aggregate blown into the transition box 3 is retained in the transition box 3 because of the smaller wind power, and the dust continues to enter the dust remover 41 along the dust removal pipe 4, thereby removing the dust generated when the discharge pipe 2 discharges.

As shown in fig. 2, at the same time, a small part of the air blown by the blower 21 along the blowing pipe 22 enters the drying cylinder 1 along the discharging pipe 2, and the normal discharging of the drying cylinder 1 is not affected due to the small amount of the air entering the drying cylinder 1. And because discharging pipe 2 and combustor 12 are located the same end of drying section of thick bamboo 1, consequently combustor 12 can be to the direction motion of keeping away from combustor 12 under the effect of wind power in the heat that produces in the drying section of thick bamboo 1, reduces the heat that combustor 12 produced along with the problem that regenerated aggregate runs off along discharging pipe 2 for the regenerated aggregate that is far away from combustor 12 in the drying section of thick bamboo 1 also can be earlier by the heating, makes the drying efficiency of drying-machine higher.

As shown in fig. 3, the bottom of the transition box 3 is connected with a receiving cavity 32, and one surface of the receiving cavity 32 close to the dust catcher 41 is inclined toward the direction close to the dust catcher 41. When some light recycled aggregates enter the transition box 3 under the action of wind, part of the recycled aggregates fall into the receiving cavity 32, and dust mixed in the aggregates falling into the receiving cavity 32 can move upwards along the inclined surface of the receiving cavity 32 and finally enter the dust remover 41 through the dust removing pipe 4.

As shown in fig. 3, the receiving cavity 32 is detachably connected to the transition box 3, and when the aggregate in the receiving cavity 32 needs to be cleaned, the receiving cavity 32 is detached from the transition box 3, so as to clean the recycled aggregate in the receiving cavity 32. Two opposite side surfaces of the bearing cavity 32 are fixedly connected with sliding rods 33 arranged in the horizontal direction respectively, the bottom surface of the transition box 3 is fixedly connected with two supporting plates 34, the two supporting plates 34 are perpendicularly bent towards opposite surfaces respectively to form sliding grooves 35, and the sliding rods 33 are in sliding connection with the sliding grooves 35. In order to reinforce the connection of the receiving chamber 32 to the transition box 3, the receiving chamber 32 is fixedly connected to the transition box 3 by a locking element. The locking member is a bolt which passes through the support plate 34 and the sliding bar 33 in sequence to enable the tight connection therebetween.

When the receiving cavity 32 needs to be disassembled, the bolts are loosened to be separated from the supporting plate 34 and the sliding rod 33, then the receiving cavity 32 is slid along the sliding groove 35, and the regenerated aggregate in the receiving cavity 32 can be cleaned by separating the sliding rod 33 from the sliding groove 35.

As shown in fig. 3 and 4, a position limiting plate 36 is connected between the two supporting plates 34, and the position limiting plate 36 is located at one end of the two supporting plates 34. When the sliding rod 33 slides along the sliding groove 35 until the sliding rod 33 abuts against the limit plate 36, the receiving cavity 32 is just aligned with the opening on the lower surface of the transition box 3, and the limit plate 36 limits the sliding position of the sliding rod 33, so that the receiving cavity 32 is accurately aligned with the opening on the lower surface of the transition box 3.

As shown in fig. 5, a blocking plate 5 is fixedly connected to the connection between the transition pipe 31 and the discharge pipe 2, and a plurality of meshes 51 are arranged on the blocking plate 5. As shown in fig. 3 and 5, when the blower 21 blows along the blowing pipe 22, the blocking plate 5 blocks some larger recycled aggregates in the discharging pipe 2, so that the larger recycled aggregates are normally discharged along the discharging pipe 2, and are prevented from entering the transition box 3 along the transition pipe 31, which affects the efficiency of the discharging pipe 2 for normally discharging the recycled aggregates.

As shown in fig. 3, a baffle 6 with a plurality of through holes 61 is connected in the transition box 3, and the baffle 6 is fixedly connected at a position of the transition box 3 close to the dust removing pipe 4. The through holes 61 are smaller than the diameter of the mesh 51 (see fig. 5), and the baffle 6 can prevent part of the recycled aggregate entering the transition box 3 from entering the dust remover 41 along the dust removing pipe 4 and damaging the dust remover 41.

As shown in fig. 3, the baffle 6 is inclined toward the receiving chamber 32, so that the recycled aggregate blown onto the baffle 6 by wind can slide along the baffle 6 into the receiving chamber 32 for collection.

The implementation principle of the embodiment is as follows: when the recycled aggregate needs to be dried, the recycled aggregate is poured into the feeding hopper 11, so that the recycled aggregate enters the drying cylinder 1 along the feeding hopper 11, the burner 12 is started to heat and dry the recycled aggregate in the drying cylinder 1, the dried recycled aggregate is discharged along the discharging pipe 2, and meanwhile, the air blower 21 is started to blow air and remove dust on the discharging pipe 2 along the blowing pipe 22. The dust in the discharging pipe 2 enters the transition box 3 along the transition pipe 31, wherein some large regenerated aggregates are blocked by the blocking plate 5 to be normally discharged in the discharging pipe 2, and some light and small regenerated aggregates pass through the meshes 51 on the blocking plate 5 to enter the transition box 3. The dust in the transition box 3 enters the dust collector 41 along the dust collecting pipe 4 for dust collection under the action of wind force, and the recycled aggregate blown into the transition box 3 falls into the receiving cavity 32 in the transition box 3 due to smaller wind force. Meanwhile, the baffle 6 in the transition box 3 can prevent part of the recycled aggregate in the transition box 3 from entering the dust remover 41 along the dust removing pipe 4, and the recycled aggregate is prevented from damaging the dust remover 41.

When the recycled aggregate in the receiving cavity 32 needs to be cleaned, the bolts are loosened to separate the regenerated aggregate from the supporting plate 34 and the sliding rod 33, and then the sliding rod 33 is slid to separate the regenerated aggregate from the sliding groove 35, so that the recycled aggregate in the receiving cavity 32 can be cleaned. After the recycled aggregate in the receiving cavity 32 is cleaned, the sliding rod 33 is pushed along the sliding groove 35 until the sliding rod 33 abuts against the limiting plate 36, and finally the supporting plate 34 and the sliding rod 33 are locked by bolts.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a regeneration aggregate drying-machine with dust removal function, includes drying cylinder (1), and the one end of drying cylinder (1) is equipped with combustor (12), its characterized in that: a discharging pipe (2) is arranged at one end, provided with a burner (12), of the drying barrel (1), one side surface of the discharging pipe (2) is connected with an air blower (21), and a dust remover (41) is further connected to one side surface of the discharging pipe (2).

2. The recycled aggregate dryer with the dust removing function as claimed in claim 1, wherein: the discharge pipe (2) is arranged vertically downwards.

3. The recycled aggregate dryer with the dust removing function as claimed in claim 1, wherein: fixedly connected with blowing pipe (22) between air-blower (1) and discharging pipe (2), be connected with transition pipe (31) between dust remover (41) and discharging pipe (2), transition pipe (31) are located discharging pipe (2) and keep away from the one side of blowing pipe (22), and transition pipe (31) and blowing pipe (22) all set up towards the direction downward sloping of keeping away from air-blower (21).

4. The recycled aggregate dryer with the dust removing function as claimed in claim 3, wherein: the transition pipe (31) and the blowing pipe (22) are positioned on the same straight line.

5. The recycled aggregate dryer with the dust removing function as claimed in claim 3, wherein: one end fixedly connected with transition case (3) that discharging pipe (2) were kept away from in transition pipe (31), the one side that discharging pipe (2) were kept away from in transition case (3) is connected with dust remover (41).

6. The recycled aggregate dryer with the dust removing function according to any one of claims 3 to 5, wherein: the junction of the transition pipe (31) and the discharge pipe (2) is fixedly connected with a barrier plate (5) provided with a plurality of meshes (51).

7. The recycled aggregate dryer with a dust removing function according to any one of claim 6, wherein: one end of the transition box (3) close to the dust remover (41) is fixedly connected with a baffle (6), and a plurality of through holes (61) are formed in the baffle (6).

8. The recycled aggregate dryer with the dust removing function as claimed in claim 7, wherein: the lower surface of the transition box (3) is provided with a bearing cavity (32), and one surface of the bearing cavity (32) close to the dust remover (41) inclines towards the direction close to the dust remover (41).

9. The recycled aggregate dryer with the dust removing function as claimed in claim 8, wherein: the bearing cavity (32) is detachably connected with the transition box (3).

10. The recycled aggregate dryer with a dust removing function according to any one of claim 8, wherein: the baffle (6) inclines towards the direction close to the bearing cavity (32).