KR100596615B1 - The improving shape of regenerated sand - Google Patents

Abstract

The present invention relates to a flush type rotary fan for improving and sorting recycled aggregates. Specifically, in order to increase sieving efficiency in a wet vibration screen and produce high quality recycled sand, water is injected into finely pulverized recycled aggregates. So that it is easy to remove the mort, soil, or fine powder attached to the surface of the fine aggregate or coarse aggregate by water, and to remove the corners and the mortar of flagella by a plurality of striking plate to produce a round and fine reclaimed sand, The present invention relates to a recycling aggregate granular improvement and sorting device using a flush rotary fan installed between a conveyor and a wet vibration screen.

According to the present invention, a hopper-shaped casing having a discharging hole at a lower portion thereof, a plurality of spray nozzles installed at an upper end of the casing, and a pair of rotary shafts installed at predetermined intervals below the spray nozzles and interlocked by a driving motor are provided. And, there is provided a recycling aggregate granular improvement and sorting device using a flush rotary fan comprising a striking plate installed at equal intervals on the rotating shaft.

Waste concrete, flush rotary fan, recycled sand, blow plate, recycled aggregate

Description

Improvement and sorting device for recycled aggregate using a flush rotary fan {The improving shape of regenerated sand}

1 is a cross-sectional view of the present invention

2 is an overall perspective view of the present invention

3 and 4 are various installation state of the blow plate of the present invention

5 is a state diagram in which flagella is made of high quality recycled sand by the present invention

※ Explanation of codes for main parts of drawing

1: topdressing 2: casing

3: injection nozzle 4: driving motor

5: rotating shaft 6: blow plate

7: belt 8: flush nozzle

9: protector

50: conveyor 60: wet vibration screen

100: flush rotary fan

The present invention relates to a recycling aggregate granular improvement and sorting apparatus using a flush rotary fan, in particular, to increase the screening efficiency in the wet vibration screen and to produce high quality recycled sand, It is easy to remove the mort, soil, or fine powder attached to the surface of fine aggregate or coarse aggregate by spraying with water, and to remove the corners and mortar of flagella by multiple blow plates to produce round and fine reclaimed sand. The present invention relates to a recycling aggregate granular improvement and sorting apparatus using a flush rotary fan installed between a conveyor and a wet vibration screen.

The method of crushing the waste concrete and recovering it as reclaimed sand is to crush the waste concrete three to four times to separate it into fine aggregate (sand) and coarse aggregate (gravel), and then transfer it through a conveyor through a flush nozzle on a vibrating screen. Water is sprayed to clean the sand and fines attached to the sand and gravel and recovered as sand of a certain particle size.

However, in order to crush the waste concrete and the particle size of the reclaimed sand to be within 5mm, mechanical impacts should be applied three or four times. As a result, mortar and fine powder are attached to the surface of the crushed fine aggregate and coarse aggregate. When sprinkling in a vibrating wet screen for washing and sorting, the sieving efficiency is very poor because the pulverized recycled aggregates are aggregated and aggregated together or transferred to the wet vibrating screen.

In addition, the recycled aggregate contains many flagstones due to multiple crushing operations, and these flagstones are not filtered out of the wet vibration screen, which reduces production capacity or sieving efficiency. When mixed with sand, there is a problem that deteriorates the quality by adversely affecting the wear and stability of the reclaimed sand.

An object of the present invention is to solve the conventional problems as described above, in order to improve the screening efficiency of the wet vibration screen and improve the shape of the reclaimed sand, to produce a high quality reclaimed sand, by stirring the blow plate and the injection nozzle By washing and soaking is made by providing a fine aggregate recycling and sorting apparatus using a flush rotary fan to crush the mortar attached to the sharp part of the flagella and raw aggregates and spread it widely and evenly on the wet vibration screen.

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

The flush rotary fan 100 for production of recycled sand according to the present invention includes a hopper-shaped casing 2 having a discharging hole 1 formed at a lower portion thereof, and a plurality of injection nozzles 3 installed at an upper end of the casing 2. And a pair of rotary shafts 5 which are installed at predetermined intervals below the injection nozzle 3 to be interlocked by the driving motor 4, and the striking plate 6 which is provided at equal intervals on the rotary shafts 5, respectively. Configured to include; It is installed between the conveyor 50 and the wet vibration screen 60.

In particular, the striking plate 6 is installed at equal intervals along the rotation axis 5, and has a structure that is sequentially installed at a predetermined angle with respect to the center, it is rotated at intervals of 90 degrees around the rotation axis 5 It has a structure that is installed in, or sequentially installed at intervals of 180 degrees or the like. That is, when viewed from the direction in which the cross section of the rotating shaft 5 becomes a circle, when one blow plate 6 is installed in the 12 o'clock direction, the blow plate 6 installed at the next interval becomes the 3 o'clock direction, and Are sequentially installed at intervals of 90 degrees, such as at 6 o'clock.

Of course, in the above case, the number and shape of the striking plate 6 can be various, it can be installed only on one side with respect to the rotary shaft 5 can be shaped like a cantilever, two 180 degrees with respect to the rotary shaft (5) It can also be installed symmetrically.

The impact plate 6 is a wear-resistant material is installed in the rotating shaft (5) replaceable with a fastening tool such as bolts or nuts have a structure that can be easily replaced when the wear occurs by the work.

In addition, the pair of rotary shafts 5 may be installed to face the striking plates 6 having mutually staggered installation angles. That is, if the striking plate 6 provided on one rotary shaft 5 is installed in the 12 o'clock direction, the striking plate 6 of the corresponding position provided on the other rotary shaft 5 is at 6 o'clock or 3 o'clock. It will have an installation structure that is in or out of direction.

In addition, the pair of rotary shafts 5 has a structure that is interlocked with each other by the drive motor 4 and the belt 7, the drive motor 4 and one rotary shaft 5 is fastened by the belt (7), The one rotary shaft 5 may have a structure in which the other rotary shaft 5 and the belt 7 are coupled to each other by a pair. Alternatively, each of the rotation shafts 5 may be independently rotated by means of the belt 7 or the like by the drive motor 4, the rotation direction may be the same or reverse. In addition, in the case of having a pair of rotary shafts 5, each of the rotary shafts 5 can rotate with the same rotation speed or with a different rotation speed, which can select a suitable rotation speed according to the work.

In addition, a plurality of protective plates 9 made of a wear-resistant material are installed on the inner side of the casing 2 with fastening tools such as bolts and nuts to prevent wear of the casing 2 generated during operation. When the protective plate 9 is worn, it has a structure that can be replaced with a new one.

In the drawings, reference numeral 8 denotes a flush nozzle installed in a plurality of wet vibration screens 60.

The present invention having such a structure is installed and used between the conveyor 50 and the wet vibration screen 60 as shown in FIG. Therefore, the crushed waste concrete is introduced into the upper opening of the flush rotary fan 100 of the present invention along the conveyor (50). The recycled aggregate introduced into the upper portion is washed by the washing water sprayed into the spray nozzle 3 and a soaking action occurs.

In other words, the crushed recycled aggregate is attached to the mortar and various crushed dust and soil, and the irregular shape of the crushing is mixed with many flagstone, such foreign matter and flagella decrease the quality of the reclaimed sand or sieving efficiency This reduces the production of reclaimed sand and therefore needs to be removed. Therefore, in the present invention, the foreign matter attached to the particles is first removed by the washing water sprayed, and the foreign matter that is not washed is called, and the impact plate 6 hits the angular part of the mort or flagella on the raw aggregate. To improve.

The washed and soaked recycled aggregate is entangled with water, the lump of recycled aggregate aggregated by the rotating blow plate 6 is evenly distributed, and the angular portion of the release such as flagstone is removed, thereby improving the shape. The mortar attached to the raw aggregate is removed by the striking plate (6).

The striking plate 6 is installed on the pair of rotary shafts 5 at a predetermined angle, and the opposing striking plates 6 installed on the respective rotary shafts 5 are installed at different angles, so that stirring and At the time of rotation for the strike can be trimmed by stirring the recycled aggregate with a small rotational force or hitting the mortar attached to flagella and raw aggregate. And one rotary shaft (5) without installing a plurality of striking plate (6) in the same position is installed only one or two, in the case of two makes the installation angle 180 degrees symmetrical structure, such installation When the spacing is made to have a shape as shown in FIG. This also has a great effect with little rotational force during stirring. In other words, when a plurality of blow plates 6 are installed in one place, the resistance caused by the recycled aggregate is increased and the efficiency is lowered.

And the impact plate 6 is inevitably wear fast progress, in order to prepare for the present invention has a structure that can replace the impact plate (6). In other words, when the impact plate 6 is worn down and the efficiency is lowered, it is always necessary to remove the worn impact plate 6 using a fastening tool such as a bolt or nut, and then replace it with a new impact plate 6 so that it can be used at all times. It is designed to maintain efficiency.

In addition, the inside of the casing (2) may be worn, such as the striking plate (6), in order to prevent this and increase the work efficiency, the present invention is used by installing a protective plate (9) on the inner surface of the casing (2), The protection plate 9 can also be replaced and used to protect the casing 2 and the entire apparatus.

In addition, the present invention is a pair of rotating shaft (5) is rotated hitting and stirring the recycled aggregate, at this time the rotating shaft (5) can be rotated at the same rotational speed, in some cases can be rotated at a different rotational speed have. That is, one rotation shaft 5 is rotated at 500 rpm and the other rotation shaft is rotated at 300 rpm, or rotates at the same rotation speed, and can be operated in various ways. You can use

The recycled aggregate tangled or agglomerated by the pair of rotary shafts 5, the striking plate 6, and the washing water is spread evenly, the flagstone is trimmed, and the mortar attached to the raw aggregate is peeled off, and the clay formed at the bottom of the casing 2 is removed. It is transferred to the wet vibration screen 60 through the sphere (1).

The wet vibration screen 60 is a device for collecting reclaimed sand having a predetermined particle size by filtering pulverized recycled aggregate, and a plurality of flush nozzles 8 are provided. The present invention aims to make the recycled aggregate crushed on the wet vibration screen 60 wide and evenly spread, to improve the sieving effect, and to improve the shape of the reclaimed sand. Therefore, in the wet vibration screen 60, foreign matters such as mortar or fine powder attached to the recycled aggregate are called and transported from the flush rotary fan 100, and are completely washed by the vibration and washing work therein. Then, the flagstone is processed and transported by the striking plate 6 into a good shape, and since the mort attached to the raw aggregate is broken and removed, the reclaimed sand having a good particle size and shape is recovered to the screen.

That is, as shown in FIG. 5, raw aggregates with flagella or mort are improved in shape by the flush rotary fan 100 of the present invention and the mort is removed, thereby regenerating and recovering sand having high quality granules. As a result, the amount of recycled sand is increased and the quality of the recycled sand is improved by increasing the sieving efficiency.

Thus, the present invention is stirred by the striking plate (6) and the washing and soaking is made by the injection nozzle (3) by crushing the sharp part of flagella, spreading widely and evenly on the wet vibration screen 60, wet vibration The screening efficiency of the screen 60 is increased, the shape of the reclaimed sand is improved, and high-quality reclaimed sand can be produced.

Claims (6)

Hopper-shaped casing (2) having a discharge port (1) formed in the lower portion, a plurality of injection nozzles (3) installed on the upper end of the casing (2), and is installed spaced apart from the lower portion of the injection nozzle (3) Flush rotary fan consisting of a pair of rotary shafts (5) interlocked by the drive motor (4), and a striking plate (6) which are installed at equal intervals along the rotary shaft (5) and sequentially installed at an angle with respect to the center. 100; Conveyor (50) for transporting the waste aggregate to the upper portion of the casing (2); A plurality of flush nozzles (8) are installed, the wet vibration screen (60) installed in the lower portion of the discharge port (1); recycle aggregate aggregate improvement and sorting device using a flush rotary fan, characterized in that it comprises a. delete delete delete delete delete

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