KR101818490B1 - System for dry cleaning gravels using construction - Google Patents

Abstract

A dry gravel wash system is disclosed. The dry gravel wash system comprises a feeder for feeding the recovered gravel to the dry scrubber (D); A dry scrubber (D) for cleaning the gravel supplied to the feeder; And a dust collecting device for collecting and purifying fine dust generated during washing in the dry cleaning device (D), wherein the dry cleaning device (D) comprises: a cleaning frame part forming an appearance of the dry cleaning device (D); A main drum portion supported and rotated by the cleaning frame portion; A media storage unit for storing media supplied to the main drum unit; A media transfer unit for withdrawing the used media from the main drum unit; And a media ejecting part for ejecting the medium together with the high pressure air to the gravel inside the main drum part.

Description

{SYSTEM FOR DRY CLEANING GRAVEL USING CONSTRUCTION}

The present invention relates to a dry gravel cleaning system, and more particularly, to a gravel cleaning system for recovering recovered gravel, the gravel of the supplied railway is moved through the main drum, And in this process, the gravel surface is cleaned.

Many construction structures such as bridges, roads, railways, etc., which have arisen in the process of urbanization and industrialization, have become increasingly obsolete with the passage of time, and many construction wastes are generated in the process of dismantling such old structures do. When these construction wastes are directly buried, it is difficult to secure landfill sites, and the landfill costs become large, which seriously affects the environment.

Therefore, in each country, various measures are taken to treat construction waste in terms of protection of environment and recycling of resources. In Korea, a lot of processing equipment for recycling of construction waste is being developed.

Construction and maintenance of the railroad require a huge amount of gravel, and the gravel that has been needed is still collected from the quarries and has been the cause of destruction of forests and the environment. In addition, gravels contaminated by lubricating oil, oil leaks, and waste oil due to train operation on some railway sites have not been recycled to the railway or recycled as construction aggregate, and have been disposed of according to regulations. Therefore, a gravel washing system that can be used as general aggregate for cleaning and recycling can be realized while reducing environmental damage considerably.

Conventionally developed gravel cleaning systems for removing the remnants of road gravel are divided into water washing method and dry washing method.

The water washing method is a method of washing the gravel by water, and most of the water washing equipments use the spray cleaning method. Therefore, in order to perform the water washing operation, the chamber (compartment) or the water tank in which the injection nozzle is mounted must be passed through, and a reprocessing facility for the wastewater generated after the injection should be combined. In addition, a drying device for drying the surface of the gravel after washing with water should be separately provided.

However, since the surface residues generated during washing with water are not detached after the water has dried, there is a problem in that the strength is very disadvantageously deteriorated when it is combined with an injection material such as mortar. In addition, the water washing method has a complicated facility, excessive facility capacity and water amount, which is uneconomical in comparison with the cleaning effect, has a slow processing speed, has a variety of problems such as generating a large amount of secondary pollutants, It was very difficult.

In order to improve the problem of this water washing method, a dry washing method has been developed. The dry cleaning method facilitates the removal of surface residues by spraying air including air or a projection material for cleaning on the surface of the base material, and minimizes adherence of foreign matter that may occur during the operation. In addition, there is an advantage that the installation of the conveying device, the dust collecting device, and the power supply device can be minimized as compared with the water washing method in which the water treatment facility is required, thereby enabling economical equipment operation.

Regarding this, Registration No. 10-0614612 is disclosed under the name of "railroad gravel purifier".

Referring to FIG. 1A, a railroad gravel purifier is a railway gravel purifier that has a function of purifying railroad gravel. The railroad gravel purifier is a railroad cargo gravel purifier capable of traveling on a railroad track and equipped with a conveyor capable of conveying gravel, A blasting unit for removing contaminants on the surface of the gravel by spraying a predetermined medium on the ground gravel placed on the conveying platform, and a ballast unit for purifying the on-ground gravels by the blasting unit. And a re-sprayed gravel placement unit.

Such railway gravel purifying apparatus has an advantage that it can collect polluted road gravel immediately from the site, quickly clean it, and then re-spray it immediately. However, in the railway gravel purge apparatus, a part of the road gravel located around the railway is simply picked up and the predetermined medium is sprayed to remove the contaminants from the surface of the gravel surface, and the purified road gravel is repulsed with the rail, And there was a problem that the contaminants could not be completely removed, and the ejected media could not be recycled, which was disadvantageous in terms of processing speed, cleaning effect, and economical efficiency.

Regarding the 'Reclaimed aggregate cleaning device for construction waste', Registration No. 10-0453931 is disclosed.

Referring to FIG. 1B, the recycled aggregate cleaning device for construction waste includes a cylindrical permeable body 10 having an aggregate inlet 11 at one end and an aggregate outlet 12 at the other end. A screw conveyer 20 rotatably conveying the agglomerates laid in the cylindrical permeable body 10 to the aggregate discharge port 12; A spray tube 30 communicating with the cylindrical permeable body 10 to directly inject water or high pressure air into the permeable body 10; And a soil emitter 40 for receiving and discharging the water sprayed by the spray tube 30 and the soil sprayed to the air.

In the recycled aggregate cleaning apparatus for construction waste, a screw conveying body is set in a cylinder-shaped transmitting body, and the aggregate to be treated is poured into the screw conveying body and pushed out by the helical wing of the screw conveying body. The fine materials that have been removed effectively are removed, and the removed fine materials are effectively washed by the air or water sprayed at high pressure, so that the recycled aggregate can be cleanly cleaned.

However, the recycled aggregate cleaning apparatus for such construction waste disposes of the fine material due to the collision of the aggregate, and the jetting pipe is installed in the cylindrical permeable body to jet water or high-pressure air in all directions, There is a problem that the material can not be completely removed and secondary contamination may occur in the nearby soil due to the sprayed water or air.

On the other hand, the gravels on the railroad roads vary in pollution degree depending on the location and the speed of the train. Generally, high-speed lines are not polluted more than general lines. However, in the conventional aggregate cleaning apparatuses, irregardless of the degree of pollution, all the on-road gravels are cleaned by the same cleaning apparatus or system, resulting in a problem that economical efficiency is greatly reduced.

Therefore, it has become necessary to improve the economical efficiency and the equipment usability by applying different cleaning systems to high-pollution gravels and high-pollution gravels with high pollution levels.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a cleaning module for a general line and other gravel having a high degree of pollution, The present invention provides a dry gravel cleaning system that maximizes the cleaning efficiency and increases the economical efficiency by using only the cleaning treatment module except for the process of the pre-treatment module.

It is another object of the present invention to provide a method and apparatus for separating media and gravel from each other by providing a slot-shaped separation hole to easily induce mixing of gravel, To provide a dry gravel cleaning system capable of increasing the efficiency of recovery of media by an in-cyclone.

As a means for achieving the above-mentioned technical object, a dry gravel cleaning system according to the present invention comprises a supply device for supplying recovered gravel to a dry scrubber (D); A dry scrubber (D) for cleaning the feed gravel supplied; And a dust collecting device for collecting and purifying fine dust generated during washing in the dry cleaning device (D), wherein the dry cleaning device (D) comprises a cleaning frame part; A main drum portion rotatably supported by the cleaning frame portion; A media storage unit for storing media supplied to the main drum unit; A media transfer unit for withdrawing the used media from the main drum unit; And a media ejection unit for ejecting the medium together with high-pressure air to the gravel inside the main drum unit,
The dry cleaning apparatus (D) includes a cyclone section for separating fine dust from the medium recovered by the medium transport section, wherein the cyclone section separates the medium recovered by the medium transport section into a cyclone So that the fine dust separated by the cyclone body is moved to the dust collecting apparatus by the air discharging unit formed on the upper part of the cyclone body. And the cleaning frame part includes a cleaning frame for supporting a load of the main drum part and the loaded gravel; A drum guide formed at front, rear, left, and right of the lower portion of the cleaning frame to guide rotation of the main drum; And a main driving unit formed between the drum guides and providing rotational power of the main drum unit by the main power unit; And a cover formed in a semicircular shape on the top of the cleaning frame so as to protect the dry cleaning device (D) against an external impact, wherein the media transporting part is fixed to the cleaning frame part, The first media recovery guide collecting media ejected from the main drum unit; And a first conveyor formed at a lower portion of the main drum portion to convey the medium discharged from the first media recovery guide to the cyclone portion; A second media recovery guide formed at a lower portion of the main drum and formed in a concave shape perpendicular to a longitudinal direction of the main drum to collect media discharged from the main drum; A plurality of second conveyors formed at a lower portion of the second media recovery guide to transport the collected media to a third conveyor; And a third conveyor which is formed at a lower portion of the main drum and is formed in the longitudinal direction of the main drum and transfers the medium transferred from the second conveyor to the cyclone portion.

delete

According to the present invention, it is possible to maximize the cleaning efficiency by applying a process differentiated according to the degree of contamination of gravel, and the gravel having a relatively high degree of contamination can be cleaned more smoothly by applying the pretreatment module, The gravel does not go through the preprocessing module, which can drastically reduce the process cost and reduce the processing time.

Further, according to the present invention, since the drum-type dry cleaning apparatus is used, the gravel can bump itself to enhance the cleaning effect, and the media injection area can be enlarged by applying the oscillating nozzle, Pebbles can be effectively mixed through the perforation holes and the mixing bars to further enhance the cleaning effect.

In addition, according to the present invention, by applying the media recovery guide and the conveyor, the media can be recovered without being discarded, and the recovered media can be reused by filtering the fine dust by the cyclone part, thereby improving the economical efficiency.

In addition, according to the present invention, the dust collecting device collects and purifies fine dust generated when fine dusts are generated in each step, thereby preventing environmental pollution, and also prevents contaminated water from being discharged by using a dry cleaning device .

1A is a detailed perspective view of a railway gravel purifier according to the prior art.
1B is a side cross-sectional view of a recycled aggregate cleaning apparatus for construction waste according to the prior art.
FIGS. 2A and 2B are schematic views showing a conceptual diagram of a pretreatment module and a cleaning treatment module of a dry gravel cleaning system according to an embodiment of the present invention.
FIG. 3A is a cross-sectional view showing a sorting apparatus in a pre-treatment module of a dry gravel cleaning system according to an embodiment of the present invention. FIG.
Figure 3b is a pictorial view of a drying device in a pretreatment module of a dry gravel cleaning system in accordance with an embodiment of the present invention.
3C is a pictorial view of a conveyor conveyor in a pretreatment module of a dry gravel cleaning system in accordance with an embodiment of the present invention.
Figure 4 is a photographic view of a dry gravel cleaning system in accordance with another embodiment of the present invention.
FIG. 5 is a perspective view of a dry gravel cleaning system according to another embodiment of the present invention, showing a gravel suction unit and a dry cleaning apparatus.
6A is an exploded perspective view of a dry cleaning apparatus of a dry gravel cleaning system according to another embodiment of the present invention.
6B is an assembled perspective view of a dry cleaning apparatus of a dry gravel cleaning system according to another embodiment of the present invention.
6C is a perspective view illustrating a media ejection unit of a dry gravel cleaning system according to another embodiment of the present invention.
6D is an excerpted sectional view of the main drum of the dry gravel cleaning system according to another embodiment of the present invention.
7A is a perspective view showing a cyclone recovery material of a dry gravel cleaning system according to another embodiment of the present invention.
7B is a perspective view illustrating a first embodiment of a media transfer unit of the dry gravel cleaning system according to another embodiment of the present invention.
FIG. 7C is a conceptual view showing a second embodiment of the media transfer unit of the dry gravel cleaning system according to another embodiment of the present invention. FIG.
8 is a cross-sectional view showing a dust collecting apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

FIGS. 2A and 2B are schematic views showing a conceptual diagram of a pretreatment module and a cleaning treatment module of a dry gravel cleaning system according to an embodiment of the present invention.

Referring to FIG. 2A, the dry gravel wash system may perform only the cleaning process module or may perform the pre-treatment module and the cleaning process module together.

Gravels on railroad tracks vary in pollution degree depending on location and train speed. Generally, high-speed lines are not polluted more than general lines. The pre-treatment module is a device that reduces the pollution level by pretreating the general line and the gravel with a serious pollution level. The cleaning treatment module is a device for treating pollution such as gravel or high- Is a device that performs surface cleaning on relatively low gravel.

In the present invention, gravels of a general line having a high degree of contamination are subjected to a primary treatment through a pre-treatment module. In addition, a high-speed line and a low-contamination gravel having a low contamination level are treated with only a cleaning treatment module, Economical efficiency and equipment usability can be improved.

In FIG. 2A, the pretreatment module includes a hopper and a drying device, and includes a sorting device, a dry cleaning device, and a dust collecting device 400 in the cleaning process module. However, as shown in FIG. 2B, the pre-processing module may include the sorting device 100, the drying device 200, and the conveying conveyor C, and the dry cleaning device D and the dust collecting device 400 It is of course possible to include.

That is, the sorting device may be included in the pre-processing module or may be included in the cleaning processing module, but in an embodiment of the present invention, the sorting device is included in the pre-processing module for convenience of explanation.

[Pretreatment module and cleaning treatment module of dry gravel cleaning system according to one embodiment of the present invention]

Referring to FIG. 2B, the dry gravel cleaning system according to an embodiment of the present invention includes a sorting device 100, a drying device 200, and a conveying conveyor C as a pretreatment module.

3A is a cross-sectional view of a sorter in a pretreatment module of a dry gravel cleaning system according to an embodiment of the present invention.

The sorting apparatus 100 is for sorting the gravels and removing foreign matter from the hopper (not shown) into which the gravel is introduced. The screening apparatus 100 includes a screen net 110, a screen box 120, a damping spring 130, a damping unit 140, and a support unit 150.

A hopper (not shown) is located at the upper part of the sorting device, and the hopper is mounted for continuous operation so that the feeding operation can be performed by an input device such as an excavator.

The gravel is conveyed to the inclined sorter 100 by the hopper. The installation angle of the sorting apparatus 100 is set to be higher than 30 degrees in terms of the level, so that the sorting and conveying speeds are enhanced.

The screening apparatus 100 has a network structure smaller than the minimum particle size of 22.4 mm and a screen network 110 having a maximum particle size of 63 mm or more in order to select the particle size (22.4 mm to 63 mm) of the graphite gravel. That is, the upper screen net 110 is formed as a circular perforated mesh to select gravels having a particle size of 63 mm, and the lowermost screen net 110 forms a grid-like porous network to select 22.4 mm or less.

The screening apparatus 100 is constructed in a multi-layered structure in which the gravels are sorted by the weight of the gravel and the mechanical vibration.

The screen box 120 refers to a screen layer installed in the form of a filter to select various particle sizes.

The damping unit 140 is fixed to a side end of the screen net 110 and an upper end of the supporting unit 150 to give a vertical vibration to the screen net 110. [ The screen net 110 is arranged vertically and the damping spring 130 increases the vertical amplitude.

Accordingly, the screening apparatus 100 according to an embodiment of the present invention selects pebbles according to their weight and amplitude, and the screening speed is increased according to the angle of the screening net to optimize the selection of the construction aggregate as in the present invention.

Figure 3b is a pictorial view of a drying device in a pretreatment module of a dry gravel cleaning system in accordance with an embodiment of the present invention.

The drying apparatus 200 dries gravel discharged from the sorter 100.

The drying apparatus 200 includes a hot air generating unit 210 for removing moisture on the surface of the gravel by direct injection, a drying unit 220 for drying the gravel conveyed from the sorter 100 by the hot air generating unit 210, And a discharge unit 230 for discharging the gravel dried by the drying unit 220 to a conveying conveyor C for conveying the gravel to the dry cleaning apparatus D.

The hot air generating unit 210 is a fan type electric heater type hot air drying apparatus, and maintains a temperature of 150 degrees Celsius in an available temperature range. Thus, hot air can be sprayed in the drying unit 220. In the present invention, the electric heater type drying apparatus 200 is exemplified, but it is also possible to employ a gas combustion type drying apparatus.

In the drying unit 220, the supplied gravel collides with the gravel between the gravels in the circular network drum, and dust and moisture are removed from the gravel surface. Secondly, the gravel collapses and cracks It is possible to perform a work of filtering out a piece of gravel or the like caused by the gravel.

The discharge unit 230 discharges the dried gravel to the dry cleaning apparatus D by the conveying conveyor C and transfers the dust and moisture from the gravel surface generated by the drying unit 220 to the dust collecting apparatus 400).

The dry cleaning apparatus D is to clean the gravel supplied from the conveying conveyor C. [ The dry cleaning device D will be described in detail later.

3C is a pictorial view of a conveyor conveyor in a pretreatment module of a dry gravel cleaning system in accordance with an embodiment of the present invention.

The conveying conveyor (C) is for conveying the gravel for washing. The conveying conveyor (C) is made of a rubber material having abrasion resistance, and can include a directional protrusion at the central portion of the belt in order to prevent the falling of the gravel while sufficiently supporting the gravel load during the transportation of the gravel.

The conveying conveyor C may be equipped with a U-shaped or V-shaped driving roller (not shown) to facilitate conveyance of the gravel. The conveying conveyor C is a general technique in the technical field of the present invention, and thus a detailed description thereof will be omitted.

8 is a cross-sectional view showing a dust collecting apparatus according to an embodiment of the present invention.

The dust collecting apparatus 400 is a device for purifying fine dust generated in the dry washing apparatus D or the drying apparatus 200 and compresses and discharges foreign matter that has been removed.

The dust collecting apparatus 400 is composed of a collecting device (not shown) and a discharging device (not shown), and the fine dust collected in the collecting filter can be separated and discharged. In the present invention, the bag filters 410 are arranged in parallel to increase the dust collecting efficiency. However, the present invention is not limited thereto.

[Dry cleaning apparatus (D)]

FIG. 4 is a photograph showing a dry gravel washing system according to another embodiment of the present invention, and FIG. 5 is an assembled perspective view showing a gravel suction unit and a dry washing apparatus of the dry gravel washing system according to another embodiment of the present invention.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof, Device D is commonly applied to embodiments of the present invention and other embodiments.

The feeder 310 feeds the recovered gravel to the dry scrubber D. That is, when both the pre-processing module and the cleaning processing module are performed, the gravel dried in the drying device 200 is supplied to the dry cleaning device D, so that the supply device 310 is unnecessary. However, It can be seen that the supply device 310 is required to smoothly supply the gravel less dust to the dry scrubber D.

The feeder 310 includes a gravel storage 311 for loading and storing gravel by an inlet formed at an upper portion thereof and a gravel transporting guide 311 for supplying gravel discharged from the gravel storage 311 to the dry cleaner D 313, a vibration motor 315 for generating vibrations to move the loaded gravel, and a support frame 319 for supporting the supply device 310.

The gravel that has entered the gravel storage 311 is moved by the vibration of the vibration motor 315 mounted on the lower portion of the gravel storage 311 and the inclination of the gravel conveyance guide 313, The gravel storage part 311 is supported by a plurality of fixing springs 317 for smooth vibration.

Also, although not shown, when the air cylinder is installed in the lower part of the gravel storage unit 311 and the gravel to be charged is clogged, the gravel can be smoothly applied to the dry cleaning apparatus D by applying an impact using an air cylinder.

FIG. 6A is an exploded perspective view of a dry gravel cleaning system according to another embodiment of the present invention, FIG. 6B is an assembled perspective view of a dry gravel cleaning system according to another embodiment of the present invention, and FIG. Is a perspective view showing a media ejection unit of a dry gravel cleaning system according to another embodiment of the present invention, and FIG. 6D is an exploded sectional view of a main drum of a dry gravel cleaning system according to another embodiment of the present invention.

4 to 6, the dry cleaning apparatus D includes a cleaning frame unit 320, a main drum unit 330, a media storage unit 340, a media transfer unit 350, a media ejection unit 360, A cover 370 and a cyclone portion 380.

The cleaning frame part 320 forms the appearance of the dry cleaning device D and is configured to rotate the main drum part 330. [

The cleaning frame section 320 includes a cleaning frame 321, a drum guide 323, a main power section 324, and a main drive section 325.

The cleaning frame 321 is formed to support the load of the gravel and the media transferring unit 350 introduced into the main drum unit 330 and the main drum unit 330. The cleaning frame 321 may be formed to correspond to the height of the main drum 330 and the cover 370 may be formed on the top of the cleaning frame 321 to protect the dry cleaning device D against an unexpected external impact. .

The lower part of the cleaning frame 321 may be formed of two layers, and the upper layer may support the main drum part 330 and the media transfer part 350 may be formed at the lower layer.

The drum guide 323 is formed at the front, rear, left, and right sides of the lower portion of the cleaning frame 321 to guide the rotation of the main drum 330. That is, the drum guide 323 is formed at a predetermined position before and after the longitudinal direction of the main drum 330, and the drum guide 323 is positioned at a predetermined position in the longitudinal direction of the main drum 330, So that one pair is formed vertically. A media transferring part 350 may be formed at a lower portion of a quadrangle formed by the four drum guides 323.

The drum guide 323 is formed to support both ends of a drum belt 333 formed on the outer circumferential surface of the main drum 331 and is fixed to the cleaning frame 321 by a coupling device .

The main drive part 325 is formed between the drum guides 323 and provides the rotational power of the main drum part 330 by the main power part 324. The main driving part 325 is fixed to the cleaning frame 321 by a clamping device not shown in the figure as a timing belt guide to engage with a timing belt 335 formed on the outer circumferential surface of the main drum 331 to rotate the main drum 331 .

The main drum part 330 is supported by the cleaning frame part 320 and is rotated to clean the gravel.

The main drum portion 330 includes a main drum 331, a dividing belt 332, a drum belt 333, a timing belt 335, a spiral blade 337, a mixing bar 338 and a perforation hole 339 do.

The main drum 331 is formed in a cylindrical shape, and inlet and outlet ports for gravel are formed at both ends thereof. The main drum 331 rotates at a high torque so that the loaded gravel is washed by the media jetting unit 360 and mixed by rotation.

The main drum 331 is formed along the outer circumferential surface of the main drum 331 and includes a drum belt 333 formed to correspond to a position where the drum guide 323 of the cleaning frame part 320 is formed, And may be rotated by a timing belt 335 formed to correspond to a position where the main driving part 325 of the cleaning frame part 320 is formed.

In other words, the main drum 331 rotates due to the friction between the timing belt 335 and the main driving unit 325, and is guided by the drum guide 323, so that the main drum 331 can be stably rotated by the high torque.

6A and 6B, the main drum 330 is formed on the outer circumferential surface of the main drum 331 and is spaced apart from the drum belt 333 by a predetermined interval between the drum belt 333 and the timing belt 335 And may include a separation belt 332.

The partition belt 332 may be formed to weld the main drum 331 in the longitudinal direction and a plurality of perforation holes 339 may be formed in the main drum 331 between the partition belts 332.

6D, the perforation hole 339 is formed so as to communicate with the inside and the outside of the main drum 331, and the end of the gravel is rotated by the perforation hole 339 so that the gravels are easily mixed with each other, It is possible to easily remove the foreign substances on the gravel surface.

The gravel-washed media is discharged through the perforation hole 339 to the outside of the main drum 331, and the discharged medium moves to the media transfer unit 350.

In addition, a mixing bar 338 is coupled to a part of the perforation hole 339, so that the gravel is more easily mixed, thereby enhancing the cleaning efficiency.

A plurality of spiral wings 337 are formed on the inner peripheral surface of the main drum 331 in a spiral shape. The spiral wing 337 causes the gravel to be transferred to the outside from the inside of the main drum 331. The spiral wing 337 is also interlocked with the rotation of the main drum 331 so that the gravel collides against each other It is possible to increase the gravel washing treatment capacity while increasing the cleaning effect.

Referring to FIG. 6C, the media ejection unit 360 is formed inside the main drum unit 330 and ejects the media together with the high-pressure air to the loaded gravel.

The media may be formed of a metallic projection material, a mineral projection material, a glass bead, a plastic projection material, or the like as a dry projecting material. The medium is to remove foreign matter from the gravel surface while hitting the gravel at high speed.

As a projection material for cleaning the gravel, it may be formed as a gauze which is similar to the gravel and has a specific gravity so as to be optimized for removing surface residues of the gravel at the time of injection, but the present invention is not limited thereto.

The media spraying unit 360 may include an air supply pipe 363 for supplying high pressure air to the spray nozzle 361 and a media supply pipe 365 for supplying the medium formed on one side of the air supply pipe 363. [ have.

The media ejection unit may be formed of a direct pressure type, which is a method of directly mixing media and compressed air, and a suction type, in which media and compressed air are separately transported and mixed immediately before ejection.

Direct pressure type is used for removal of contaminants adhered to gravel and for surface treatment of highly abrasive metallic material. Inhalation type is mainly used for surface cleaning of gravel with low adhesion. In the present invention, the air ejection unit 360 is formed by separately forming the air supply pipe 363 and the media supply pipe 365, but the present invention is not limited thereto.

The injection nozzle 361 applies an oscillating nozzle, thereby widening the projected area of the medium to further increase the cleaning effect of the gravel.

The media ejection unit 360 is fixed to the cleaning frame 321 by a fixing frame 367 so that media can be easily ejected onto the gravel while avoiding interference with the rotating main drum 330.

FIG. 7A is a perspective view showing a projectile recovery cyclone of a dry gravel cleaning system according to another embodiment of the present invention, and FIG. 7B is a perspective view showing a first embodiment of a media transfer part of a dry gravel cleaning system according to another embodiment of the present invention. And FIG. 7C is a conceptual view showing a second embodiment of the media transfer unit of the dry gravel cleaning system according to another embodiment of the present invention.

Referring to FIG. 7A, the media storage unit 340 is formed at one side of the main drum unit 330 to store the media to be supplied to the media ejection unit 360.

The media ejection unit 360 is connected to the media supply pipe 365 to supply the media to the media ejection unit 360.

A cyclone unit 380 is formed above the media storage unit 340.

The cyclone unit 380 separates the fine dust from the medium collected by the medium transfer unit 350 and transfers the fine dust to the dust collector 400. The separated fine dust is transferred to the media storage unit 340 .

That is, the cyclone unit 380 transports the media recovered by the media transport unit 350 to the cyclone body 381 by the media recovery pipe 382, And is connected to the cyclone main body 381 by the pipe joint portion 383. The fine dust separated by the cyclone body 381 is moved to the dust collecting apparatus 400 by the air discharging unit 385 formed on the upper portion of the cyclone body 381.

The media transferring unit 350 recovers the media discharged from the main drum unit 330 and transfers the collected media to the cyclone unit 380.

Referring to FIG. 7B, the media transport unit 350 according to the first embodiment of the present invention includes a first conveyor 351 and a first media recovery guide 353.

The first conveyor 351 may be formed as a general conveyor and transports the medium formed at the lower portion of the main drum 330 to the cyclone unit 380 through the first media recovery guide 353.

The first media recovery guide 353 is fixed to the cleaning frame part 320 and has a predetermined width and is formed in an arc shape to collect the media discharged from the main drum part 350. Here, the arc shape refers to a shape corresponding to the shape of the outer peripheral surface of the main drum 331, and a shape gradually curved toward the center of the cleaning frame 321 toward the bottom.

Thus, the gravel-washed media is discharged to the outside of the main drum 331 through the perforation hole 339, and the discharged media is moved to the media transferring unit 350 by the first media recovery guide 353.

Referring to FIG. 7C, the media transfer unit 350 according to the second embodiment of the present invention includes a second conveyor 355, a third conveyor 357, and a second media recovery guide 359.

The second conveyor 355 is formed in a plurality of pieces and is formed under the second media recovery guide 359 to transfer the collected media to the third conveyor 357.

In the present invention, the number of the second conveyors 355 is four, but the present invention is not limited thereto.

The second conveyor 355 is formed in a direction perpendicular to the longitudinal direction of the main drum 330, and may be formed of a screw conveyor, but is not limited thereto. The second conveyor 355 is formed at the lower portion of the second media recovery guide 359 and can transfer the media collected by the second media recovery guide 359 to the third conveyor 357.

The third conveyor 357 is formed at a lower portion of the main drum 330 and is formed in the longitudinal direction of the main drum 330. The third conveyor 357 is configured to convey the medium conveyed from the second conveyor 355 to the cyclone portion 380 To be transferred.

Although the third conveyor 357 is illustrated as one in the present invention, the present invention is not limited thereto, and the present invention is also applicable to a screw conveyor.

The second media recovery guide 359 is formed at a lower portion of the main drum 330 and has a concave shape perpendicular to the longitudinal direction of the main drum 330, .

The second media recovery guide 359 may be formed to correspond to the number of the second conveyors 355 formed. The second media recovery guide 359 collects the media that is formed in the lower portion of the main drum 330 and is discharged by a perforation hole (not shown) or the like.

Accordingly, the present invention minimizes the amount of discarded media through a plurality of conveyors, thereby dramatically increasing the recovery rate of the media.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: sorting device
110: screen net 120: screen box
130: damping spring 140:
150: Support
200; Drying device
210: hot air generating part 220: drying part
230:
C: conveying conveyor
310: Feeder
311: gravel storage unit 313: gravel transport guide
315: Vibration motor 317: Fixing spring
319: Support frame
D: Dry cleaning device
320: cleaning frame part
321: Cleaning frame 323: Drum guide
324: main power section 325: main power section
330: main drum portion
331: main drum 332:
333: Drum belt 335: Timing belt
337: Spiral wing 338: Mixing bar
339: Perforated hole
340: Media storage unit
350: Media transfer section
351: first conveyor 353: first media recovery guide
355: second conveyor 357: third conveyor
359: Second media retrieval guide
360: Media distributor
361: jet nozzle 363: air supply pipe
365: Media supply tube 367: Fixing frame
370: Cover
380: Cyclone moiety
381: Cyclone body 382: Media recovery tube
383: media return pipe coupling part 385: air discharge part
400: Dust collector

Claims (15)

A feeder 310 for feeding the recovered gravel to the dry scrubber D;
A dry scrubber (D) for scrubbing the gravel supplied to the feeder (310); And
And a dust collecting device (400) for collecting and purifying fine dust generated during washing in the dry cleaning device (D)
The dry cleaning apparatus (D) includes a cleaning frame section (320) forming an outer appearance of the dry cleaning apparatus (D); A main drum part 330 supported and rotated by the cleaning frame part 320; A media storage unit 340 for storing media supplied to the main drum unit 330; A media transfer unit 350 for recovering the used media from the main drum unit 330; And a media jetting unit 360 for jetting the medium together with high-pressure air to the gravel inside the main drum unit 330,
The dry cleaning apparatus D includes a cyclone unit 380 for separating fine dust from the medium recovered by the medium transport unit 350. The cyclone unit 380 includes a media transport unit 350, The media recovery pipe 382 is connected to the cyclone main body 381 by the media recovery pipe coupling portion 383. The media recovery pipe 382 is connected to the cyclone main body 381 by the media recovery pipe 382, And the fine dust separated by the cyclone body 381 is moved to the dust collecting apparatus 400 by the air discharge portion 385 formed on the upper portion of the cyclone body 381,
The cleaning frame part 320 includes a main drum part 330 and a cleaning frame 321 for supporting loads of the loaded gravel. A drum guide 323 formed at front, rear, left, and right of the lower portion of the cleaning frame 321 to guide rotation of the main drum 330; A main drive part 325 formed between the drum guide 323 and providing a rotational power of the main drum part 330 by the main power part 324; And a cover (370) formed in a semicircular shape on top of the cleaning frame (321) so as to protect the dry cleaning device (D) against an external impact
The media transporting unit 350 includes:
A first media recovery guide 353 which is fixed to the cleaning frame part 320 and has a predetermined width and is formed in an arc shape and collects the media discharged from the main drum part 350; And a first conveyor 351 formed at a lower portion of the main drum 330 to convey the medium discharged from the first media recovery guide 353 to the cyclone unit 380;
A second medium formed in a lower part of the main drum part 330 and formed in a concave shape perpendicular to the longitudinal direction of the main drum part 330 to collect media discharged from the main drum part 330, A recovery guide 359; A plurality of second conveyors 355 formed at the lower portion of the second media recovery guide 359 and transferring the collected media to the third conveyor 357; And a second conveyor 355 formed at a lower portion of the main drum 330 and extending in the longitudinal direction of the main drum 330 to convey the media conveyed to the cyclone unit 380 And a third conveyor (357). delete delete delete The method according to claim 1,
The main drum unit 330,
A main drum 331 formed into a cylindrical shape and having an inlet and an outlet at both ends thereof;
A drum belt 333 formed along the outer circumferential surface of the main drum 331 and corresponding to a position where the drum guide 323 of the cleaning frame part 320 is formed; And
And a timing belt (335) formed along an outer circumferential surface of the main drum (331) and corresponding to a position where the main drive part (325) of the cleaning frame part (320) is formed. system. 6. The method of claim 5,
The main drum unit 330,
A partition belt 332 formed on the outer circumferential surface of the main drum 331 and separated from the drum belt 333 by a predetermined interval between the timing belt 335 and the drum belt 333; And
And a plurality of spiral blades (337) formed in a spiral shape on an inner circumferential surface of the main drum (331). delete delete delete The method according to claim 1,
The media ejection unit 360 ejects,
An air supply pipe (363) for supplying high pressure air to the spray nozzle (361), and a media supply pipe (365) formed on one side of the air supply pipe (363) for supplying the medium. delete delete delete delete delete

Images