KR200418173Y1 - Coarse Gravel Sorting Device - Google Patents

Abstract

By using the difference in the compressive strength of the combination of brick or cement and sand and coarse gravel, crushing the waste concrete mass and separating only the normal coarse gravel from the selected recycled aggregate so that it can be applied to the production of concrete. It provides a coarse gravel separator included in recycled aggregates that can greatly reduce the strength and recycle waste concrete.

Separation device of the coarse gravel of the present invention, the compression chamber into which the recycled aggregates are sorted by crushing the waste concrete agglomerate, the discharge chamber located on the lower side of the compression chamber and provided with a discharge port on one side, to guide the recycled aggregates into the compression chamber And a lower pressurizing mechanism which is installed between the compression chamber and the discharge chamber so as to be lifted and lowered to form a bottom of the compression chamber or the discharge chamber according to the position, and is installed to be lifted and lowered at the upper part of the compression chamber. An upper pressurizing mechanism for pressurizing the recycled aggregate in the compression chamber together with a pressurizing mechanism, a discharge mechanism installed at a side of the discharge chamber and discharging the recycled aggregate crushed in the compression chamber and moved into the discharge chamber through the discharge port; It comprises a sorter for sorting coarse gravel and fine aggregate from the recycled aggregate crushed from the yarn.

Description

Coarse Gravel Sorting Device in Coarse Gravel in Recycled Aggregate

1 is a block diagram showing a separation device of coarse gravel according to the present invention.

2a to 2c is an operating state diagram showing a separation device of coarse gravel according to the present invention.

<Code Description of Main Parts of Drawing>

10: compression chamber 11: vibrator

20: discharge chamber 21: discharge port

30: hopper 40: lower pressure mechanism

41: base plate 42, 52, 62: drive cylinder

51: pressure plate 61: sliding plate

70: sorter 71: screen

The present invention is a recycled aggregate that can sort and separate coarse gravel from recycled aggregates that have been crushed and processed to recycle waste concrete rubles, which are industrial wastes. It relates to a separation device of the included gravel.

In general, concrete is a structural material made by mixing cement with water to bind aggregates of various sizes (usually gravel and sand). Aggregates are generally fine aggregates ranging in size from 0.025 to 6.5 mm depending on the fineness or the thickness. The 6.5 ~ 40㎜ range is divided into coarse aggregate, and the material used to produce concrete is produced as shown in Table 1 with the following composition ratio.

TABLE 1

Coarse aggregate Fine aggregate cement water Etc 40 (%) 30 (%) 10 (%) 15 (%) 5 (%)

The aggregate consumption of Korea is estimated to be 340 million tons as of 2001. In Korea, 18 million tons of waste concrete is generated annually due to redevelopment and reconstruction, and recycled aggregates of 13 million tons It is estimated that it is possible to produce.

Conventionally, a method of selecting and regenerating coarse aggregate and fine aggregate from waste concrete is a screen having a plurality of through holes through which fine aggregate passes through coarse aggregate, and fine aggregates smaller than coarse aggregate pass after crushing waste concrete. Through coarse aggregate and fine aggregate was used as recycled aggregate.

However, the recycled aggregate sorting method as described above is to screen the coarse aggregates and fine aggregates based on the size, the selected coarse aggregates in addition to the normal coarse gravel, the same size of the combination of brick, cement and sand or a combination of cement and sand It also includes recycled aggregates that are not suitable for use as coarse aggregates such as fine gravel attached to the surface.In case of using such inappropriate recycled aggregates as coarse aggregates with normal coarse gravel, the concrete strength is poor. There is a concern of construction, and thus there is a tendency to avoid the use, so there are many problems in expanding demand.

The present invention is to solve the above problems of the prior art, the purpose of which is to use the difference in the compressive strength of the coarse gravel and the combination of brick or cement and sand, coarse gravel from the recycled aggregates selected by crushing the waste concrete mass By separating the bay and applying it to concrete production, it is to provide a coarse gravel separation device included in recycled aggregate that can greatly contribute to preventing the strength reduction of concrete produced products and recycling waste concrete.

The present invention for achieving the above object, the compression chamber is put into the recycled aggregate selected by crushing the waste concrete mass, the discharge chamber is located in the lower portion of the compression chamber is provided with a discharge port on one side, and guides the recycled aggregate to the compression chamber And a lower pressurizing mechanism which is installed between the compression chamber and the discharge chamber so as to be lifted and lowered to form a bottom of the compression chamber or the discharge chamber according to a position, and is mounted to the upper and upper portions of the compression chamber. An upper pressurizing mechanism for pressurizing the recycled aggregate in the compression chamber together with a lower pressurizing mechanism, a discharge mechanism installed at the side of the discharge chamber and discharging the recycled aggregate crushed in the compression chamber and moved into the discharge chamber through the discharge port; Coarse gravel contained in the recycled aggregate including a sorter for sorting coarse gravel and fine aggregate from the recycled aggregate crushed material discharged from the discharge chamber To Lee device is characterized.

In addition, the present invention is characterized by a coarse gravel separator included in the recycled aggregate further comprising a vibrator causing vibration in the compression chamber.

In addition, the present invention, the lower pressure mechanism is a coarse gravel contained in the recycled aggregate consisting of a support plate for forming a lower portion of the compression chamber or the discharge chamber according to the position, and the driving cylinder to raise and lower the support plate between the compression chamber and the discharge chamber It is characterized by the separator.

In addition, the present invention is characterized in that the upper pressure mechanism is a coarse aggregate separation device included in the recycled aggregate consisting of a pressure plate for pressing the recycled aggregate in the compression chamber, and a driving cylinder for raising and lowering the pressure plate.

In addition, the present invention is characterized in that the discharge mechanism is a coarse gravel separation device included in the recycled aggregate consisting of a sliding plate for pushing the recycled aggregate crushed material in the discharge chamber toward the discharge port, and the driving cylinder for moving the sliding plate forward and backward. .

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

Figure 1 shows the configuration of the coarse gravel separator included in the recycled aggregate according to the present invention, as shown, the coarse gravel separator of the present invention is a compression chamber into which the recycled aggregates are selected by crushing the waste concrete mass ( 10) and a discharge chamber 20 located below the compression chamber 10 and provided with an outlet 21 on one side, wherein the compression chamber 10 has a volume capable of accommodating a predetermined amount of recycled aggregate. It is preferable that the branch is formed in a cylindrical shape, and a hopper 30 for guiding the recycled aggregate into the compression chamber 10 is provided at the upper portion of the compression chamber 10.

Upper and lower portions of the compression chamber 10 are provided with a lower pressurizing mechanism 40 and an upper pressurizing mechanism 50 for pressing the recycled aggregate in the compression chamber 10 to crush the aggregate having a lower strength than coarse gravel. The lower pressurizing mechanism 40 is installed between the compression chamber 10 and the discharge chamber 20 so as to be able to move up and down to form a bottom of the compression chamber 10 or the discharge chamber 20 according to the position ( 41 and a driving cylinder 42 for raising and lowering the support plate 41 between the compression chamber 10 and the discharge chamber 20.

In addition, the upper pressurizing mechanism 50 is installed on the upper part of the compression chamber 10 so as to be able to move up and down, and presses the recycled aggregates in the compression chamber 10 together with the lower pressurizing mechanism 40, among the recycled aggregate, cement and sand. Is for crushing aggregates having a lower strength than coarse gravel such as concrete binders or bricks, and a pressure cylinder 51 for pressing the recycled aggregate in the compression chamber 10 and a driving cylinder for raising and lowering the pressure plate 51. It consists of 52.

Side of the discharge chamber 20 is provided with a discharge mechanism 60 for discharging the recycled aggregate crushed in the compression chamber 10 and moved into the discharge chamber 20 through the discharge port 21, this discharge mechanism 60 is composed of a sliding plate 61 for pushing the recycled aggregate crushed material in the discharge chamber 20 toward the discharge port 21, and a drive cylinder 62 for moving the sliding plate 61 forward and backward.

The lower pressure mechanism 40, the upper pressure mechanism 50 and the drive cylinders 42, 52, 62 of the discharge mechanism 60 are to be operated by hydraulic pressure, the hydraulic pressure supplied from the hydraulic tank 81 It is compressed by the hydraulic pump 82, and is supplied by the control valve 83 through the hydraulic hose (not shown) connected with each drive cylinder 42,52,62.

In addition, the compression chamber 10 is provided with a vibrator 11, the vibrator 11 is a known vibrating mechanism causing a trembling in the compression chamber 10 during the supply of recycled aggregates, so that the recycled aggregates are compressed chambers. (10) performs a function to be tightly packed in.

The outlet 21 of the discharge chamber 20 is provided with a separator 70 for separating the coarse gravel by separating the coarse gravel and fine aggregate from the recycled aggregate crushed material. This sorter (70) has a screen (71) provided with a plurality of through holes (71a) having a smaller size than coarse gravel and is inclined, and separates and discharges for discharging coarse gravel and fine aggregate separated by the screen (71). 72 and 73, respectively, and the screen 71 is configured to vibrate by a known vibrator 74 provided on one side.

Referring to the operation of the coarse gravel separator included in the recycled aggregate configured as follows. First, the supporting plate 41 of the lower pressing mechanism 40 is located under the compression chamber 10 to form the bottom of the compression chamber 10, and the pressing plate 51 of the upper pressing mechanism 50 is a compression chamber ( 10 is located in the upper portion of the compression chamber 10 in the open state (Fig. 1 state) to crush the waste concrete lumps to supply a predetermined amount of the selected recycled aggregate to the compression chamber 10 through the hopper 30. Then, the recycled aggregate is piled up on the support plate 41 and accommodated in the compression chamber 10. At the same time, when driving the vibrator 11 provided on one side of the compression chamber 10, the compression chamber 10 vibrates to closely adhere the recycled aggregate in the compression chamber 10, thereby minimizing the gap between the recycled aggregates. Let's go.

At this time, the recycled aggregate in the compression chamber 10 includes not only coarse gravel (W1), but also poor aggregate (W2) such as fine gravel having a combination of brick, cement and sand, or a combination of cement and sand attached to the surface. .

In this state, as shown in FIG. 2A, when the driving cylinder 52 of the upper pressurizing mechanism 50 is driven to lower the pressure plate 51 into the compression chamber 10, the recycled aggregate in the compression chamber 10 is pressed. At the same time as the compression between the 51 and the support plate 41, the compression force acts between the recycled aggregates by the pressing force. At this time, the compressive force applied is set to be lower than the strength of the coarse gravel (W1), by the compression distance (H) between the pressing plate 51 and the support plate 41 according to the falling length of the upper pressure mechanism (50) to the recycled aggregate Since the compressive force applied is determined, it is possible to set the compressive force applied to the recycled aggregate by adjusting the compression distance H.

Therefore, coarse gravel (W1) is not crushed by compressing the regenerated aggregate with a compression force set to be lower than the coarse gravel (W1), the coarse gravel (W1) is less than the coarse gravel (W1) poor aggregates such as brick, cement and sand combinations ( W2) is crushed, and a combination of cement and sand adhered to the surface of the fine gravel is also crushed away from the surface of the fine gravel.

After compressing and crushing the recycled aggregate in this manner, as shown in FIG. 2B, the driving cylinder 42 of the lower pressing mechanism 40 is operated to lower the support plate 41 to the bottom position of the discharge chamber 20. When the base plate 41 of the lower pressurizing mechanism 40 forms part of the bottom of the discharge chamber 20, at the same time, the driving cylinder 52 of the upper pressurizing mechanism 50 is operated to operate the pressure plate 51. When moved to the lower portion of the compression chamber 10, it is possible to move the recycled aggregate crushed in the compression chamber 10 to the discharge chamber 20 without leaving.

Subsequently, as shown in FIG. 2C, the pressure plate 51 of the upper pressurization mechanism 50 is raised to the upper portion of the compression chamber 10, and at the same time, the discharge mechanism 60 provided on one side of the discharge chamber 20. The sliding plate 61 is moved forward by the drive cylinder 62 is moved to the sorter 70 by discharging the recycled aggregate crushed in the discharge chamber 20 through the discharge port 21.

Thereafter, the sliding plate 61 of the discharge mechanism 60 is moved back by the drive of the drive cylinder 62, and then the support plate 41 of the lower pressure mechanism 40 is driven to drive the drive cylinder 42. By rising to the lower portion of the compression chamber 10 again to form the bottom of the compression chamber 10 is returned to its original state as shown in FIG.

Since the lower pressurizing mechanism 40, the upper pressurizing mechanism 50 and the discharge mechanism 60 are repeatedly operated using this operation as one cycle, the sorting machine after crushing the recycled aggregate supplied into the compression chamber 10 continuously, It is possible to move to 70.

Subsequently, the recycled aggregate crushed material moved by the discharge mechanism 60 to the separator 70 is installed on an inclined surface as shown in FIG. 2C and formed on the screen 71 in which a plurality of through holes 71a having a smaller size than the coarse gravel W1 are formed. When the stack 71 is driven to vibrate the screen 71 by driving a known vibrator 74, the coarse gravel W1 does not pass through the through hole 71a and is separated along the inclined screen 71. The broken bad aggregate (W2), such as fine gravel, in which brick, cement and sand combinations or cement and sand combinations are separated, passes through the through-hole 71a of the screen 71, It is discharged to the separation outlet 73 and separated.

Therefore, only coarse gravel (W1) can be used separately from the ash aggregate to maintain the specified strength during concrete production, and fine aggregates can be recycled through a separate treatment.

Although described as a preferred embodiment of the present invention so far, the scope of the present invention is not limited to the above embodiment, various modifications by those skilled in the art within the spirit and utility model registration claims of the present invention It will be understood that modifications or substitutions may be made and such embodiments are within the scope of the present invention.

As described above, according to the coarse gravel separating apparatus included in the recycled aggregate according to the present invention, by crushing the waste concrete agglomerate compressed recycled aggregates to a pressing force lower than the coarse gravel strength is weaker than coarse gravel Alternatively, after crushing aggregates such as cement and sand aggregates, concrete can be produced using only coarse gravel by separating normal coarse gravel with a sorter, thereby maintaining the strength of concrete, thereby increasing the demand for its use. It is an idea.

Claims (5)

Compression chamber to put the recycled aggregates selected by crushing the waste concrete mass, A discharge chamber positioned below the compression chamber and provided with a discharge port at one side thereof; Hopper for guiding the recycled aggregate into the compression chamber, A lower pressurizing mechanism which is installed between the compression chamber and the discharge chamber so as to be lifted and lowered and forms a bottom of the compression chamber or the discharge chamber according to a position; An upper pressurizing mechanism installed on an upper portion of the compression chamber so as to be able to move up and down and pressurize the recycled aggregate in the compression chamber together with the lower pressurizing mechanism; A discharge mechanism installed at a side of the discharge chamber and discharging the recycled aggregate crushed material which is crushed in the compression chamber and moved into the discharge chamber through the discharge port; The coarse gravel separating apparatus included in the recycled aggregate comprising a separator for sorting coarse gravel and fine aggregates from the recycled aggregate crushed material discharged from the discharge chamber. The coarse gravel separator of claim 1, further comprising a vibrator causing vibration in the compression chamber. According to claim 1 or claim 2, wherein the lower pressure mechanism, the support plate for forming a lower portion of the compression chamber or discharge chamber according to the position, The coarse gravel separating apparatus included in the recycled aggregate, characterized in that the support plate is composed of a driving cylinder for raising and lowering between the compression chamber and the discharge chamber. 4. The coarse aggregate separating apparatus of claim 3, wherein the upper pressurizing mechanism comprises a pressurizing plate for pressurizing the recycled aggregate in the compression chamber, and a driving cylinder for raising and lowering the pressurizing plate. The recycled aggregate according to claim 1 or 2, wherein the discharge mechanism comprises a sliding plate for pushing the recycled aggregate crushed material in the discharge chamber toward the discharge port, and a driving cylinder for moving the sliding plate forward and backward. Coarse gravel separator included.

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