CN212566767U

CN212566767U - Stone drying drum

Info

Publication number: CN212566767U
Application number: CN202021061668.4U
Authority: CN
Inventors: 李孟颖; 赵文鹏
Original assignee: Bormos Tianjin Technology Development Co ltd
Current assignee: Bormos Tianjin Technology Development Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-02-19
Anticipated expiration: 2030-06-10

Abstract

The utility model provides a building stones drying drum relates to pitch agitated vessel technical field, and the main objective reduces the produced polluting gas of production regeneration mixture in-process, reduces the energy consumption simultaneously. The stone drying roller comprises a roller, a rack, a burner and a fire-isolating cylinder positioned between the roller and a heating device, wherein the roller is positioned on the rack and can rotate under the driving of a motor, and a feeding opening and a discharging opening are respectively arranged at two ends of the roller; the roller and the fire-isolating cylinder are coaxially arranged, a channel for materials to pass through is formed between the roller and the fire-isolating cylinder, flame generated by the burner during working can extend into the fire-isolating cylinder, and the fire-isolating cylinder can help to isolate the materials and keep the shape of the flame; the fire insulation cylinder is provided with a hollow hole towards one end of the combustor in the circumferential direction, and the hollow hole can be used for adsorbing polluted gas generated by combustion by using a Venturi effect, so that the polluted gas is combusted secondarily to reduce the emission of the polluted gas.

Description

Stone drying drum

Technical Field

The utility model belongs to the technical field of pitch agitated vessel technique and specifically relates to a building stones drying drum is related to.

Background

When the asphalt pavement is maintained, a milling machine is firstly required to mill and clean an old or damaged pavement, and the cleaned milling material and a new material are heated, mixed and dried and then laid on the pavement, so that the milling material is recycled.

The stone drying drum technology which is commonly used at present is to lead the stone to pass through an obliquely arranged cylindrical drum, and a flame heater for heating the material is arranged in the drum. The stone enters through one end of the drum and moves along with the rotation of the drum against the flame direction to the other end and is discharged. During this movement the rock material is heated and dried by the heater. But the heating is too coarse. The reclaimed materials are subjected to long-term wind blowing, sun drying and rolling, have different degrees of damage, and can be aged through long-time high-temperature heating, so that the service life is influenced, and in addition, too high heating temperature can also cause a large amount of volatile pollutants to be released to pollute the air. Therefore, in order to improve the utilization of the recycled materials while reducing the pollution of air, it is required to improve and optimize the structure of the drum.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a building stones drying drum to easily produce a large amount of gaseous pollutants's technical problem in the cylinder working process who exists among the solution prior art. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a stone drying roller, which comprises a roller, a frame, a burner and a fire-isolating cylinder positioned between the roller and the burner, wherein the roller is positioned on the frame and can rotate under the drive of a motor, and the two ends of the roller are respectively provided with a feeding port and a discharging port; the roller and the fire-proof cylinder are coaxially arranged, a channel for materials to pass through is formed between the roller and the fire-proof cylinder, and flame generated by the burner during working can extend into the fire-proof cylinder;

it is provided with the fretwork hole to separate the fire section of thick bamboo orientation combustor one end week side, the other end pass through the backup pad with the inside wall of cylinder links to each other, be provided with the through-hole that supplies the material to pass in the backup pad, the material warp the through-hole gets into separate the fire section of thick bamboo outside.

The hollow holes arranged on the fire separating cylinder can realize the adsorption of pollutant gas generated by combustion by applying the Venturi effect, so that air is concentrated in the direction of the fire separating cylinder towards the feeding port to be combusted secondarily, and the polluted air is avoided. In addition, the design of the fire-isolating cylinder can effectively isolate materials from the combustor, and the problem that the materials are aged and damaged due to direct contact with flame and overhigh heating temperature is avoided.

In the above technical scheme, preferably, the interior of the drum is sequentially divided into a feeding zone, a material guiding zone, a mixing zone and a heating zone from the feeding port to the discharging port, and the fire insulation cylinder is located in the heating zone.

After the materials enter the roller from the feeding port, the materials respectively flow into the heating area through the feeding area, the material guiding area and the mixing area, and after the materials are preheated and mixed in the process, the materials cannot be aged when flowing through the heating area due to overlong heating time and overhigh heating temperature.

In the above technical solution, preferably, a blade is disposed at the through hole, the blade is disposed in an inclined manner, and the material flows into the channel along the blade through the through hole.

The blade that the slope set up can be dialled the material in order and make it pass through the through-hole fast, avoids the material to pile up in a large number in through-hole department and produces the material curtain to avoid influencing the material and contact with the hot gas flow.

In the above technical solution, preferably, the blade is located outside and/or inside the through hole.

In the above technical scheme, preferably, a conveyor belt is arranged at the material inlet of the roller, and materials are conveyed by the conveyor belt to enter the roller through the material inlet.

The new material and the planning and milling material can be conveyed to the inside of the roller through the conveying belt, and in the heating process, asphalt in the planning and milling material is softened and then can be wrapped by stone powder and small stone chips in the new material, so that the aging of the asphalt is effectively avoided.

In the above technical solution, preferably, a plurality of material guide plates are arranged on the inner side wall of the drum, and the material guide plates are arranged along the axial direction of the drum.

The new material and the planning and milling material can be quickly mixed together under the guidance of the guide plate.

In the above technical solution, preferably, the plurality of material guide plates are uniformly distributed annularly along a peripheral side of an inner side wall of the drum.

In the above technical solution, preferably, the shape of the material guide plate is at least one of a plate-like structure, a shovel-like structure, or a spiral structure.

In the above technical solution, preferably, an extending direction of the material guide plate of the spiral structure is matched with a rotating direction of the drum.

At the moment, the material guide plate which is arranged in a spiral structure can guide the material to gradually move from the direction of the feeding opening to the direction of the discharging opening.

In the above technical solution, preferably, the material guide plate on the inner side wall of the feeding area is a plate-shaped structure perpendicular to the axis of the drum; the material guide plate on the inner side wall of the material guide area is of a plate-shaped structure parallel to the axis of the roller; the material guide plate on the inner side wall of the mixing area is of a spiral structure; the material guide plate on the inner side wall of the heating area is of a plate-shaped structure perpendicular to the axis of the roller.

In the above technical solution, preferably, the flame generated by the burner is in a jujube-stone shape.

In the above technical solution, preferably, a feeder is arranged above the conveyor belt, and the number of the feeders is at least one.

The new material and the planning and milling material respectively fall onto the conveying belt through different feeders.

Compared with the prior art, the utility model provides a building stones drying drum, the device is including the cylinder that the slope set up, the combustor and be located the inside fire tube that separates of cylinder, should separate fire tube and the coaxial setting of cylinder and separate the fire tube and keep apart material and combustor, should separate the one end week side evenly distributed of fire tube towards the combustor simultaneously and have a plurality of fretwork holes, when using, thereby this fretwork hole can produce the venturi effect with this fire tube and make the gas that produces after the burning inhale and separate fire tube front end (also be exactly towards the one end of pan feeding mouth), make gaseous burning more abundant, avoid polluting gaseous leaking. In addition, the material guide plate positioned on the inner wall of the roller can ensure that the materials are fully mixed in the roller and are smoothly discharged from the discharge opening, so that the materials are prevented from blocking the roller or being adhered inside the roller.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the whole structure of the stone heating drum of the present invention;

FIG. 2 is a schematic cross-sectional view of the stone heating drum of the present invention;

FIG. 3 is a schematic structural view of the fire barrier of FIG. 1;

FIG. 4 is a schematic structural view of the front end of the fire tube of FIG. 3;

fig. 5 is a rear end structure view of the fire-blocking barrel in fig. 4.

In the figure: 1. a drum; 11. a feeding port; 12. a discharge opening; 13. a feed zone; 14. a material guiding area; 15. a mixing zone; 16. a heating zone; 17. a material guide plate; 2. a burner; 3. a fire-insulating cylinder; 31. hollowing out holes; 4. a support plate; 41. a through hole; 42. a blade; 5. a channel; 6. and a frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

FIG. 1 is a schematic view of the whole structure of the stone heating roller of the present invention; as can be seen from the figure, the whole roller in the device is obliquely arranged on the frame, the height of the feeding port is higher than that of the discharging port, and the burner is fixedly arranged at the slightly lower end of the roller.

FIG. 2 is a schematic cross-sectional view of the stone heating drum of the present invention; the internal structure of the drum and the positional relationship between the drum, the burner and the flame barrier can be clearly seen in this figure. The interior of the roller is sequentially divided into a feeding area, a material guiding area, a mixing area and a heating area, wherein the inner side walls of the feeding area and the heating area are respectively provided with a plate-shaped material guiding plate perpendicular to the axis of the roller, the inner side wall of the material guiding area is provided with a plate-shaped material guiding plate parallel to the axis of the roller, the inner side wall of the mixing area is provided with a spiral material guiding plate, and different materials can be fully mixed together under the action of the spiral material guiding plate; in addition, the fire-isolating cylinder is positioned in the heating area and is coaxially arranged with the roller, flame generated during the working of the burner can just stretch into the fire-isolating cylinder, and one side of the fire-isolating cylinder, which is close to the burner, is also provided with a plurality of hollowed-out holes.

FIG. 3 is a schematic structural view of the fire barrier of FIG. 1; as can be seen from the figure, the fire insulation cylinder is positioned in the roller and is connected with the inner side wall of the roller through the supporting plate, a channel for materials to pass through is arranged between the fire insulation cylinder and the inner side wall of the roller, a through hole for the materials to pass through is arranged on the supporting plate, and the materials enter the channel through the through hole and are finally discharged from the discharge port; a plurality of hollow holes are uniformly distributed on the periphery of one end of the fire separating cylinder facing the discharge opening; in addition, a plurality of material guide plates are distributed on the inner side wall of the mixing area of the roller close to the fire insulation cylinder.

FIG. 4 is a schematic structural diagram of the front end of the fire insulating cylinder in FIG. 3; from the angle, through holes are formed in the supporting plate for connecting the fire insulation barrel and the roller, and the through holes are distributed in an annular array; in addition, the through hole is also provided with a blade inclining towards the outer side of the through hole.

FIG. 5 is a schematic rear end view of the flame-retardant cartridge of FIG. 3; from this angle, it can be seen that the rear end of the fire-proof cylinder is fixed on the roller through the radially distributed support frames.

As shown in fig. 1-5, the utility model provides a stone drying drum, which comprises a drum 1, a frame 6 and a fire-isolating drum 3 positioned in the drum 1, wherein the drum is mounted on the frame 6 through rollers and can rotate under the driving of a motor, and the two ends of the drum are respectively provided with a feeding port 11 and a discharging port 12; the fire insulation cylinder 3 and the roller 1 are coaxially arranged, and a channel 5 for materials to pass through is arranged between the fire insulation cylinder and the roller. Because the drum 1 is arranged obliquely and the feeding port 11 of the drum 1 is higher than the discharging port 12, the material can gradually move to the discharging port 12 along with the rotation of the drum 1 through the channel 5.

The 1 outside of cylinder is fixed with heating device, it is the combustor to set up this combustor 2, the fire outlet of combustor 2 stretches into in the section of thick bamboo 3 that separates, the produced flame of combustor 2 during operation does not disperse under the effect that separates section of thick bamboo 3 this moment, the existence that separates section of thick bamboo 3 can effectively keep apart material and combustor 2, consequently the material can be through separating the indirect heating in the 3 outside of section of thick bamboo, adopt thermal-radiating mode heating promptly, the material can not direct contact flame, the too high problem of material heating temperature can not appear yet.

It should be noted that the fire-barrier cylinder 3 is provided with a hollow hole 31 towards the periphery of one end of the burner 2, and the diameter of the hollow hole 31 is not large enough for the material to pass through.

The fire-proof cylinder 3 is made of high-temperature-resistant and corrosion-resistant refractory materials.

The hollow holes 31 arranged on the fire-isolating cylinder 3 can realize the adsorption of pollutant gas generated by combustion by applying the Venturi effect, so that air is concentrated in the direction of the fire-isolating cylinder 3 towards the feeding port 11 to be combusted secondarily, and the polluted air is avoided. In addition, adopt 3 isolated materials of fire insulation section of thick bamboo and combustor 2, can effectively avoid the material because the ageing impaired problem that heating temperature is too high leads to.

Since the fire-insulating tube 3 is located inside the drum 1, it needs to be fixed. As can be clearly seen by observing fig. 4 and 5, the two ends of the fire-proof cylinder 3 are respectively provided with the support plate 4 and the radioactive support frame, wherein the support plate 4 is provided with the through hole 41 for the material to pass through, the support frames are radioactive, and the space between the two adjacent support frames can not generate any obstruction to the material to pass through.

The material in the drum 1 will enter the channel 5 between the drum 1 and the muffle 3 via the through holes 41.

As an alternative embodiment, the interior of the drum 1 is partitioned from the material inlet 11 to the material outlet 12, and the material inlet zone 13, the material guiding zone 14, the mixing zone 15 and the heating zone 16 are arranged in sequence. The aforementioned flame-proof barrel 3 is located in the heating zone 16.

After entering the drum 1 from the feeding port 11, the material flows into the heating zone 16 through the feeding zone 13, the material guiding zone 14 and the mixing zone 15, and after the preheating and mixing treatment in the first three zones, the material flowing into the heating zone 16 does not have aging problems due to too long heating time and too high heating temperature.

In order to avoid the accumulation or adhesion of the materials at the supporting plate 4 and the generation of the material curtain, as an optional embodiment, an inclined blade 42 is arranged at any through hole 41, and when the roller 1 rotates, the opening direction of the blade 42 just faces to the moving direction of the materials, so that the materials can conveniently flow into the channel 5 along the blade 42 through the through hole 41.

The blades 42 can effectively separate materials, so that the materials are orderly pulled out and rapidly pass through the blades, a material curtain generated by a large amount of accumulation of the materials at the through holes 41 is avoided, the contact between the materials and hot air flow can be effectively increased, and the heat efficiency of the combustor is improved.

Alternatively, the blades 42 may be located outside and/or inside the through hole 41, as long as the material can be conveniently flowed into the passage 5.

In order to enable the materials to continuously enter the device, as an optional embodiment, a conveyor belt is arranged at the feeding port 11 of the roller 1, and the materials can enter the roller 1 through the feeding port 11 at a constant speed under the conveying of the conveyor belt.

The new material and the planning and milling material can be conveyed to the interior of the roller 1 through the conveying belt, and in the heating process, asphalt in the planning and milling material can be wrapped by stone powder and small stone chips in the new material after being softened, so that the aging of the asphalt is effectively avoided.

As an alternative embodiment, a feeder is arranged above the conveyor belt, and the number of the feeders is at least one. The new material and the planning and milling material can respectively fall onto the conveying belt through different feeders.

As an alternative embodiment, a plurality of material guiding plates 17 are disposed on the inner sidewall of the drum 1, and the material guiding plates 17 are disposed along the axial direction of the drum 1.

Specifically, the material guide plates are uniformly distributed on the inner side wall of the roller in an annular shape on any section of the roller.

When the roller 1 rotates, the material guide plate 17 rotates synchronously with the roller 1 and pushes the material to move towards the discharge opening 12, and at the moment, the new material and the planed and milled material can be rapidly mixed together under the guidance of the material guide plate 17.

The guide plate 17 may have a plate-like, spade-like or spiral shape in consideration of actual processing. The guide plates 17 of different structures have different effects in use.

Specifically, the material guide plate 17 can be arranged along a direction parallel to the axis, and at the moment, the material guide plate 17 has a good guide effect and can drive the material to rapidly move along the length direction of the roller 1; the material guide plate 17 can also be arranged in a direction perpendicular to the axis, and the material guide plate 17 has a better feeding effect and is convenient for the rapid inflow of materials; the stock guide 17 also can set up along spiral direction, and the catch eye direction of stock guide 17 matches with the rotation direction of cylinder 1 this moment to guarantee that stock guide 17 can play the effect of better mixed different materials, also can guide the material to remove towards discharge opening 12 direction simultaneously.

Specifically, as shown in fig. 2, the material guide plate 17 on the inner side wall of the feeding area 13 is a plate-shaped structure perpendicular to the axis of the drum 1; the material guide plate 17 on the inner side wall of the material guide area 14 is a plate-shaped structure parallel to the axis of the roller 1; the material guide plate 17 on the inner side wall of the mixing area 15 is of a spiral structure; the material guide plate 17 on the inner side wall of the heating area 16 is a plate-shaped structure vertical to the axis of the roller 1.

In an alternative embodiment, the burner operates to produce a flame having a date core shape. The length of the flame blown out by the burner is based on the venturi effect generated in the fire-isolating cylinder 3, and the smoke generated by combustion flows into the interior of the fire-isolating cylinder 3 through the hollow hole 31 to reduce the discharge amount of harmful gas.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A stone drying roller comprises a roller, a rack, a burner and a fire-isolating cylinder positioned between the roller and the burner, wherein the roller is positioned on the rack and can rotate under the drive of a motor, and a feeding opening and a discharging opening are respectively arranged at two ends of the roller; the method is characterized in that: the roller and the fire-proof cylinder are coaxially arranged, a channel for materials to pass through is formed between the roller and the fire-proof cylinder, and flame generated by the burner during working can extend into the fire-proof cylinder;

2. A stone drying drum as claimed in claim 1 wherein the interior of the drum is divided into a feed zone, a material guiding zone, a mixing zone and a heating zone in sequence from the feed port to the discharge port, the flame barrier being located within the heating zone.

3. Stone drying drum as claimed in claim 1, characterized in that the through hole is provided with a blade, which is arranged obliquely and along which the material flows into the channel through the through hole.

4. A stone drying drum as claimed in claim 3, characterized in that the vanes are located outside and/or inside the through hole.

5. A stone drying drum as claimed in claim 1, characterized in that a conveyor belt is arranged at the inlet of the drum, through which the material is conveyed by the conveyor belt into the interior of the drum.

6. A stone drying drum as claimed in claim 2, wherein a plurality of guide plates are provided on an inner sidewall of the drum, and the guide plates are provided along an axial direction of the drum.

7. A stone drying drum as claimed in claim 6, wherein the guide plates are evenly distributed annularly around the circumference of the inner side wall of the drum.

8. A stone drying drum as claimed in claim 6, wherein the guide plate is shaped in at least one of a plate, a shovel or a spiral configuration.

9. Stone drying drum as claimed in claim 8, characterized in that the direction of extension of the guide plates of the spiral configuration matches the direction of rotation of the drum.

10. A stone drying drum as claimed in claim 8 wherein the guide plates on the inner side wall of the feed zone are of plate-like configuration perpendicular to the drum axis; the material guide plate on the inner side wall of the material guide area is of a plate-shaped structure parallel to the axis of the roller; the material guide plate on the inner side wall of the mixing area is of a spiral structure; the material guide plate on the inner side wall of the heating area is of a plate-shaped structure perpendicular to the axis of the roller.