KR100861407B1 - Prevention device aggregate screen net for rotatior type drum aggregate sorting - Google Patents

Abstract

A blocking prevention device for a screen net of a rotary drum type aggregate sorter is provided to prevent an aggregate discharging port from being blocked up while sorting aggregates, by shaking and swinging rubber screens in different forms at each position. A blocking prevention device for a screen net of a rotary drum type aggregate sorter is composed of: a unit for receiving aggregates of the crushed construction wastes; a drum turned at the constant speed by a power body, in order to sort out aggregates supplied from the unit; a rubber screen(20) installed in the drum and provided with aggregate discharging holes bored in the shape of a perforated net; the power body and a power transmitting unit rotating the drum; and a discharging unit separating and transferring aggregates that are sorted and un-sorted in the drum. The rubber screen installed at the inner periphery of a circular rod(10) is divided into plural parts. The rubber screens are settled by fixing rods(12) while coming into contact with the inner periphery of the circular rod at each divided spot. The rubber screen between the fixing rods is separated from the inner periphery of the circular rod and protruded.

Description

Screen net clogging prevention device of rotary drum type aggregate sorter {PREVENTION DEVICE AGGREGATE SCREEN NET FOR ROTATIOR TYPE DRUM AGGREGATE SORTING}

1 is an exemplary view of a rotary drum-type aggregate sorter to which the present invention is applied

2 is a cross-sectional view taken along the line A-A of FIG.

Figure 3 is an installation configuration of the rubber screen presented in one embodiment of the present invention.

4 is an exemplary view showing a state in which the rubber screen of the present invention is operated.

<Description of Signs for Main Parts of Drawings>

10: circular stand 11: opening

12: holder 13: tightening nut

14, 14a, 14b, 14c, 14d: through hole 15: fastening bolt

16a, 16b: washer 20: rubber screen

21: aggregate discharge port 22: hyeop home

23: narrow district 24: support

The present invention relates to a rotary drum type aggregate sorter for sorting aggregates of a desired size from aggregates or shredded construction wastes required at a construction site, and in particular, configured to act as a rubber screen installed in the drum of the aggregate sorter. The present invention relates to a device for preventing screen clogging of a rotating drum-type aggregate sorting device, which prevents a blockage of an aggregate discharge port of a rubber screen in advance and continuously performs smooth aggregate sorting.

In general, a rotary drum aggregate sorter is to select the aggregate of the desired size from the construction waste or aggregate input while the motor is a power source and the drum type separator is rotated through the power transmission device.

Such aggregate sorter is provided with a circular drum which is rotated by the power and the power transmission device to sort the aggregate of the desired size from the crushed construction waste, and the screen is installed to substantially sort the aggregate along the inner circumference of the drum In order to minimize wear and noise due to the selection of aggregates, the screen mainly uses a plate of rubber material in which a plurality of aggregate discharge holes are perforated at equal intervals.

However, this rotary drum type aggregate sorter does not pass if the shredded construction waste that is input to it as the drum rotates is slightly larger than the aperture of the aggregate discharge hole perforated on the screen. Can not be performed smoothly, and this phenomenon occurs not only in the screen for screening the aggregate of rubber material, but also in the metal mesh.

In order to solve such a clogging phenomenon, various methods of technology have been proposed in the prior art, for example, Patent Registration 694234, Utility Model Registration No. 349345 and Utility Model Registration No. 128258 have been proposed.

Common to the prior art presented above is that it is provided as a component to the installation to resolve the blind hole separately in the periphery of the screen installed on the circumference of the drum.

That is, the above-mentioned patent registration No. 694234 installs an air spray nozzle in the longitudinal direction of the screen installed on the circumference of the drum, and when the screen comes out of the point where the screened aggregate is discharged or comes to the point just before entering, the compressor It is configured to remove the aggregates and the like blocked by the aggregate discharge port by injecting the air supplied from the air injection line toward the aggregate discharge port of the screen,

Utility Model Registration No. 349345 is provided with a fixing stand along the drum on the side of the drum and a fixing cap fitted with an elastic body at a position corresponding to the hole of the drum, wherein the tip of the elastic body is a hole of the drum (aggregate outlet). It is configured to fit in)

The utility model registration No. 128258 is configured to put another brush in the drum body to brush off the dust that is blocking the eye (aggregate outlet) of the drum while the brush in contact with the inner peripheral edge of the drum is rotated in conjunction with the drum.

However, the above-mentioned patent and utility model registration of the prior application is that the installation of additional facilities according to the fact that it has a separate installation as a component to solve the blind holes in common, and the compressor accordingly It is undesirable in that it requires additional means for towing and additional equipment such as power transmission means for interlocking the brushes.

In addition, in the case of Utility Model Registration No. 349345, the elastic body is configured to be fitted into the outlet, so that the drum is rotated to remove the soil or sand blocking the outlet hole in a single operation when the elastic body enters the outlet of the drum. This is, for example, if the crushed aggregate of construction wastes larger than the soil or sand is blocking the outlet, especially if the screen on which the outlet is formed is made of elastic rubber material, there is a problem that a certain purpose cannot be achieved.

Therefore, the present invention has been made to solve the above-mentioned problems of the prior art, the object of which is to effectively remove the aggregate stuck in the aggregate discharge port of the rubber screen by configuring the rubber screen to act every time the drum of the aggregate sorter is rotated. The present invention provides a rotary drum screen screen clogging prevention device that can prevent aggregate clogging at the same time.

An additional object of the present invention is that the rotating drum-type aggregate sorting machine rotates to change the hole shape of the aggregate discharge port formed on the screen, thereby preventing the aggregate of particles larger than the diameter of the aggregate discharge port from blocking the aggregate discharge port. In addition, the present invention also provides a screen net clogging prevention device of a rotary drum type aggregate sorter to further increase the.

Specific means of the present invention for achieving the above object is an aggregate supply means (2) for supplying aggregates of crushed building waste, and a drum rotating at a constant speed by a power body to select the aggregates supplied from the means (4), a rubber screen 20 installed in the drum 4 and having an aggregate discharge port for discharging sorted aggregate, perforated in the form of a porous network, and a power body and a power transmission means for rotating the drum 4; 5) and the discharge means (3) for separating and transporting the aggregate and the unselected aggregate and the aggregate from the drum (4), respectively, in configuring the screen net clogging prevention device of the rotary drum aggregate sorting device, At least a plurality of rubber screens installed on the inner circumference are divided into the inner circumference, and configured to be fixed through a fixing stand in close contact with the inner circumference of the circular table at each equally divided position. The rubber screen between the and the stator is characterized in that the configuration is made to be convex spaced apart from the inner periphery of the round.

Hereinafter, the configuration according to the embodiment of the present invention will be described more clearly with reference to the accompanying drawings.

1 is an overall front structural view of a drum selector according to the present invention, and FIG. 2 is a view showing a side structure of the drum selector according to the present invention.

As shown in Figure 2, the reference numeral 1 is a rotary drum type aggregate sorter (1) installed in the towing or stacking box, the aggregate sorter is supplied to the aggregate to input the aggregates crushed construction waste, gravel, stone to one side Means (2) are provided, and on the rear and lower sides of the aggregate transport means (3) for receiving and transporting the aggregates and the unselected large particles of aggregate, respectively, and the aggregate transport means and the input aggregates for substantially sorting The drum 4 is installed inclined.

The drum 4 is guided in a downward direction in which aggregates are introduced by the inclined installation structure while rotating at a constant speed, and a normal bearing is attached to both sides of the drum 4 for smooth rotation. A power body for rotating (4) at a constant speed and a power transmission means 5 for transmitting power of the power body are provided.

In the drum 4, as shown in Figure 2, after placing a plurality of circular table 10 at regular intervals, at least six fixing tables 12 at equal intervals to the outside of the plurality of circular table 10 It is configured to form a skeleton of the drum (4), the opening 11 is formed for each of the plurality of circular stand 10 and the fixed stand 12 spaced at regular intervals to select the aggregate selected through the opening (11) It is configured to be discharged to the outside.

The predetermined interval between the holder 12 and the adjacent holder 12 'is less than the width (horizontal or vertical) of the rubber screen 20 of the perforated plate having the aggregate discharge port perforated to discharge only the appropriate aggregate. Six fixing tables 12 arranged at equal intervals of the circular table 10 and passing through the opening 11 are commonly installed on the outer surface of the circular table 10 having a plurality of through holes 14d bored at equal intervals. do.

In addition, a through hole 14c corresponding to the through hole 14d is drilled in the circular stand 10 of the drum 4 on which the six fixing tables 12 are disposed, and the center of the through hole 14c is provided. The support 24 having a through hole 14b is provided for each circular stand 10 divided into six parts, and a rubber screen having aggregate discharge ports 21 and clamping grooves 22 formed on both sides of the support 24. 2 and 3, the installation structure is shown in Figures 2 and 3, around the circular base 10, the fixing rod 12 on the outer periphery, the support 24 and the rubber on the inner periphery The screen 20 and the gripping region 23 are disposed to form a “c” shaped gripping region in the gripping groove 22 of the rubber screen 20 and the gripping groove 22 'of another rubber screen 20'. 23, the fastening bolt 15 is inserted through the through hole 14a of the pincer 23, and the support hole 24 and the through hole 14b of the circular table 10 and the fixing table 12 ( 14c) 14d sequentially penetrate and tighten with nuts 13 Determined.

The rubber screen 20 through both sides of the gripping region 23 when tightened with the fastening bolt 15 and the nut 13 in a state where the gripping region 23 is fitted into the gripping groove 22 of the rubber screen 20. Another screen 20 'adjacent to the is firmly fixed, wherein the support 24 is preferably selected from the rubber that can be stretched in accordance with the pressing force of the fastening bolt (15).

One example of fastening another rubber screen 20 'adjacent to the rubber screen 20 is described above, but the other rubber screen 20 is fastened and fixed by one fastening method as described above. The drum 4 is formed.

At this time, as shown in Figure 3, the six rubber screen 20 is fixed to the circular table 10 through the clamping tool 23 fitted into the clamping groove 22 formed at each end, the middle portion thereof in the inward direction It is convex.

In the above, the convex shape of the rubber screen 20 is formed such that the drum 4 is rotated so that the left, top, and top dead centers are more convex than the bottom dead center, and the convexity of the rubber screen 20 is similar to that of the drum 4. At the point, the state is spaced apart from the inner circumferential edge of the circular table 10 to the maximum, and as it descends from the top dead center to the bottom dead center, the convexity of the rubber screen 20 is compressed by the load of aggregate aggregated in the drum 4. The flat screen is deformed, and conversely, the rubber screen 20 flatly deformed as it goes from the bottom dead center to the top dead center is again convexly restored.

This phenomenon is, as shown in Figure 4, when the drum 4 and the circular table 10 is rotated, the convexity of the rubber screen 20 located at the bottom dead center of the drum 4 is flattened by aggregate. As the aggregate discharge port 21 is maintained in the circular discharge direction in the direction of the aggregate remains smooth aggregate discharge, at this time the load of the aggregate is lowered as the crushed aggregate to be placed on the rubber screen 20 of the bottom dead center. Pressing the rubber screen 20 adjacent to the intensively flattened, and as you go up to the top dead center, there is no crushed aggregate so that the rubber screen 20 is convexly variable again from the load of the aggregate.

When the drum 4 is continuously rotated, this variable is also the rubber screen 20 is rotated in conjunction with the convex shape of the rubber screen 20 according to the position of the bottom dead center, left, right and top dead center respectively. It appears in the form of swelling and fluctuations that appear differently.

On the other hand, when the aggregate for screening the aggregate into the aggregate sorting machine (1), the aggregate is discharged through the rubber screen 20, the rubber screen 20 of the drum (4) forming the cylindrical body descends to the bottom dead center. Only the aggregate of the desired size is discharged through the 21 is made, but if the aggregate is larger than the aperture of the aggregate discharge port 21 of the rubber screen 20, it is not discharged through the aggregate discharge port 21 and re-crushed It is sorted to be sent to the process to be discharged to the location where it is collected.

At this time, even if the size of the aggregate is similar to or smaller than the diameter of the aggregate discharge port 21 of the rubber screen 20, the aggregate that does not pass through the aggregate discharge port 21 by the hair formed in the aggregate is the aggregate discharge port 21. You will get stuck or lodged in any part of

In this case, as described above, when the rubber screen 20 is generally located at the bottom dead center of the cylindrical body 10, the convex structure of the rubber screen 20 is compressed by the load of aggregate to be screened. As such, the aggregate in question is often caught or lodged in the aggregate outlet 21.

At this time, when the rubber screen 20 rises from the bottom dead center toward the top dead center, that is, when the rubber screen 20 is rotated to reach the top dead center at a point deviating from the load of the injected aggregate, the rubber screen 20 is in the original state. As it is convex again, the elasticity of the rubber causes the momentary rocking, and the rocking shakes off the aggregates stuck or embedded in the aggregate outlet 21.

That is, when the drum 4 and the rubber screen 20 are positioned at the top dead center, the rubber screen 20 formed at the left and right positions is variable in a slightly convex convex shape to a gentle convex shape. In the rotation section (section rotated from the upper left to the top dead center), rocking or swelling acts, and the aggregate discharge port 21 of the rubber screen 20 has a larger aperture than the original state. As it opens, the opposite side is narrowed to shrink, and the aggregate embedded therein is pushed to the inflow side of the aggregate outlet 21.

This rocking and swelling starts from the point where the circular stand 10 and the rubber screen 20 constituting the drum 4 are out of the bottom dead center (the point where there is no sorting load from which the aggregate is discharged). ) Is repeated every cycle of 1 rotation, and the next cycle can continuously select the aggregate with the blockage removed.

As described above, according to the present invention, by installing each rubber screen is equally installed in the drum convex and configured to swing and reel in different forms for each position where the rubber screen is rotated at each rotation in the screening process of aggregate While the aggregate discharge port can heal the blockage phenomenon from time to time, there is no need to install a separate blockage removal device for this, and the process of eliminating aggregates stuck or stuck in the aggregate discharge port by stopping the aggregate selector at regular intervals. As a result, the yield of aggregate screening can be further increased.

Claims (4)

Means (2) for supplying aggregate of crushed building waste, Drum (4) rotated at a constant speed by a power body for sorting aggregate supplied from the means, and Sorting aggregate installed in the drum (4) The rubber screen 20 in which the aggregate discharge port for discharging the air is perforated in the form of a porous network, the power body and the power transmission means 5 for rotating the drum 4, and the aggregate and fines selected from the drum 4; In forming the screen net clogging prevention device of the rotary drum type aggregate sorting device having a discharge means (3) for separating and transporting the selected aggregates, each of the rubber screens installed at the inner circumference of the circular table is divided into at least a plurality of, It is configured to be fixed through the fixing stand in close contact with the inner circumference of the circular stand at each equal position, and the rubber screen between the fixing stand and the fixing stand is convex spaced apart from the inner circumference of the circular stand. Screen clogging prevention device of the rotary drum type aggregate sorter, characterized in that made by. The rubber screen according to claim 1, wherein a fixing stand 12 is disposed at an outer circumference of the circular stand 10, and a supporter 24, a rubber screen 20, and a pincer 23 are arranged at an inner circumference thereof. Inserting the "c" shaped gripping region 23 into the gripping groove 22 of the 20 and the gripping groove 22 'of the other rubber screen 20', and then the through hole of the gripping region 23 ( The fastening bolt 15 is inserted through 14a), and the nut 24 is sequentially inserted through the support hole 24, the circular base 10, and the through holes 14b, 14c, 14d of the fixing base 12. Screen net clogging prevention device of the rotary drum aggregate selector, characterized in that made by fixing. According to claim 1, wherein the convexity of each equally installed rubber screen 20 is formed differently depending on the position of the rotation and the screen net of the rotating drum-type aggregate sorter, characterized in that it is configured so that the rocking and swelling is repeatedly performed Blocking device. According to claim 1 or claim 3, wherein the plurality of rubber screen 20 is convex in the convex shape is pressed by the load of the aggregate at the bottom dead center position of the drum (4), toward the upper left and right top and top dead center The inner periphery of the drum (4) and the rubber screen (20) is spaced apart screen screen clogging device of the rotary drum-type aggregate sorter, characterized in that the diameter of the aggregate outlet 21 is formed differently.

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