JPH0677698B2 - Separator for raw concrete and sand stone - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a separator for ready-mixed concrete, sand stone, etc., and more specifically, ready-mixed concrete left behind from a construction site, or once manufactured but not usable due to heavy rain. It is possible to separate the raw concrete that has become a stone, sand, and water in which cement has been dissolved in a short time to collect each, or for example, to separate the sand stone collected from the riverbed into stone and sand. The present invention relates to a separator for raw concrete, sand stone, etc.

[0002]

2. Description of the Related Art Heretofore, as a separator of this kind, a circular cylinder formed by arranging round rods in a cylindrical shape with an appropriate gap, which was invented and patented by the present inventor, has a gradually decreasing diameter. A sieve tube having a front tube connected to the front tube and a lid or an auxiliary tube having an opening in the center is attached to the rear end of the rear tube, and innumerable small holes are provided on the outer peripheral surface of the front tube. An inner spiral blade is attached to the inner circumference, an outer spiral blade is attached to the outer circumference of the rear cylinder and the front cylinder, and a shaft is attached to the center of the sieving cylinder to arrange it horizontally and rotatably. However, a water tank in which at least the lower half of this sieving tube faces the outer peripheral surface of the lower half of the outer spiral blade of the roughly-containing sieving tube and at least half of which is approximately similar to the outer peripheral surface of the outer spiral blade. Arranged, provided a partition with a drainage port at the rear end of this tank,
There is known a separator for ready-mixed concrete, sand stone, etc., which is characterized in that it is possible to separate ready-mixed concrete, sand stone, etc. put through the opening of the rear tube of the above-mentioned sieving cylinder (Japanese Patent Publication No. No. 58-053939).

[0003]

SUMMARY OF THE INVENTION According to the prior art, ready-mixed concrete that has been returned or no longer needed can be easily and efficiently recovered without wasting expensive aggregate. It can be reused, and stones and sand etc. can be easily and efficiently separated from sand stones etc. collected from the river bottom, etc. Also, the placement position of fresh concrete, sand stone etc. can be lowered and these inputs The operation can be facilitated. Furthermore, the separated sand and stone are collected from the front of the sieving cylinder, respectively, and the separate collection section for sand and stone is used together to shorten the total length of the separator. Finally, by arranging the round bars in a cylindrical shape with an appropriate gap to form the rear cylinder, the efficiency of the sieve can be improved and the clogging is difficult and even if clogging occurs. Easy to remove In which advantageous effects such bets can.

However, in the prior art, when the sand is scraped from the water by the outer spiral blade, the gap between the outer circumference of the blade and the water tank is usually already filled with sand. However, even if the water is separated from the sand, there is no place for the water to escape and it is difficult to separate the water, so that the water is discharged together with the sand and the poorly drained sand is recovered.

Further, in the prior art, a part of the sieving cylinder enters the water in the water tank to separate the raw concrete, sand stone, etc. in the water. At the same time, the water in the water tank is agitated. Thus, there is a problem in that the sand that has fallen to the bottom of the water tank floats up again and is discharged along with the water over the water level, and the sand will be collected in the discharged water tank as the recovery of sand decreases.

The present invention has been made in view of the above problems of the prior art. The object of the present invention is to provide a water passage so that water that is pushed up a little above the water level is also provided. , It is possible to return to the water level immediately through the water passage, which significantly improves the drainage of sand, while
Provide a separator for ready-mixed concrete, sand stone, etc. that can prevent the agitation in water and facilitate the precipitation of sand by providing a sedimentation part where the sieve cylinder does not enter the water in the rear part of the water tank Is what you are trying to do.

[0007]

In order to achieve the above object, the present invention provides a rear cylinder, which is formed by arranging round bars in a cylindrical shape with a proper gap, and a front cylinder whose diameter gradually decreases. A small diameter cylinder connected to the rear cylinder is attached to the rear end of the rear cylinder through a step to form a sieve cylinder, and a large number of small holes are formed on the outer peripheral surface of the front cylinder of the sieve cylinder. At the same time, an inner spiral blade is attached to the inner circumference, an outer spiral blade is attached to the outer circumference of the small diameter cylinder, the rear cylinder and the front cylinder, and a shaft is attached to the center of the sieving cylinder to make it horizontal and It is rotatably arranged, and at least the lower half of this sieving cylinder is roughly similar to the outer peripheral surface of the outer spiral blade at least at least half of which faces the outer peripheral surface of the lower half of the outer spiral blade. Such a water tank is arranged, a partition plate is provided at the front end of this water tank, and a water passage is provided at the lower part of the front part. A partition with a drainage port is provided at the rear end of the water tank so that a settling part can be formed at the rear part of the tank, so that raw concrete or sand stone etc. put in from the opening of the small diameter tube of the sieve tube can be separated. Provided is a separator for ready-mixed concrete, sand stone, etc.

[0008]

[Function] First, water is put into the sieving tube and the water tank from the input port, and when the water surface reaches the height of the drainage port, the sieving tube is rotated in the direction of the arrow to mix fresh concrete with water from the input port. Pour sand stones etc.

Here, the case of separation of green concrete will be explained. The poured raw concrete slides down the inner circumference of the small diameter tube of the sieving tube and enters below the water surface of the rear tube, where the cement is watered. As it is melted, the raw concrete is separated into stone, sand and water containing cement.

The water in which the cement is dissolved is discharged from the drain port at the rear end of the water tank, and the sand is provided in the gap between the round bars forming the rear cylinder of the sieving cylinder and the outer peripheral surface of the front cylinder. It is sieved by a small hole and falls to the bottom of the aquarium, leaving the stones in a sieving tube.

[0011] Here, since the small diameter cylinder of the sieving cylinder is provided at the rear portion of the water tank with a sedimentation portion which does not enter the water, it is possible to prevent agitation in water and facilitate sedimentation of sand.

Next, the sand that has dropped to the bottom of the water tank is sent by the outer spiral blades toward the discharge portion at the front end of the water tank, drained above the water surface, and then lifted up along the partition plate. Although it is collected and collected, the water passage provided at the lower part of the front part of the aquarium allows water that is pushed up a little above the water level to return to the water level immediately through the water passage, so Draining is significantly improved.

On the other hand, the stones left in the sieving tube are sent toward the opening in the front part of the sieving tube by the inner spiral blades, and the water is drained above the water surface and collected from the rear opening. To be done.

In this way, fresh concrete is continuously separated into stone, sand and water containing cement,
Each is collected. In the case of sandstone, etc., it is separated into stone, sand, and water in which impurities are dissolved.

[0015]

EXAMPLES Examples will be described with reference to the drawings. 1 is a side view showing an embodiment of a separator for ready-mixed concrete, sand stone, etc. according to the present invention, and FIG.
It is a sectional view taken along line -A.

In FIG. 1, a sieving cylinder 1 is formed by connecting a front cylinder 3 having a gradually decreasing diameter to a front end of a rear cylinder 2 and a small diameter cylinder 5 connected to a rear end thereof through a step portion 4. And
An opening 6 is provided at the rear end of the small diameter cylinder 5.

The above-mentioned sieving cylinder 1 has a round bar 2a after the cylinder 2.
Is formed by arranging in a cylindrical shape with an appropriate gap provided, innumerable small holes 7 are provided on the outer peripheral surface of the front cylinder 3, and an inner spiral blade 8 is attached to the inner periphery thereof. An outer spiral blade 9 is attached to the outer periphery of the rear cylinder 2 and the front cylinder 3 of the small-diameter cylinder 5, and a shaft 10 is attached to the center of the outer spiral blade 9 so as to be horizontally and rotatably arranged.

The portion of the outer spiral blade 9 of the sieving tube 1 slightly rearward from the front end is bent forward to form a bent portion 11, and the sand is lifted along the partition plate 21 and discharged. It is designed to be able to effectively drain water in a short distance and in a short time.

Next, in the water tank 12, the lower half of the sieving cylinder 1 is inserted, and the outer half of the outer spiral blade 9 facing the outer peripheral surface is roughly similar to the outer peripheral surface of the outer spiral blade 9. Such a trough shape is provided with a partition plate 21 at the front end and a partition 14 having the drain port 13 at the rear end.

At the lower part of the front part of the water tank 12, the water passage 1
5 is provided so that water that is pushed up slightly above the water level can be returned to the water level immediately through the water passage.

At the rear of the water tank 12, the drain port 13 is provided.
A partition 14 having a settling portion 16
Since the small-diameter cylinder 5 of the sieving cylinder 1 does not enter the water, it is prevented from stirring in water and the sedimentation of sand is facilitated.

In the drawings, 17 is an inlet for water such as ready-mixed concrete and sand stone, 18 is stone, 19 is sand, and 20 is water surface.

[0023]

Since the present invention is configured as described above, it has the following effects. That is, it goes without saying that the same operational effects as those described in the related art as described in the problems to be solved by the invention are obtained.

Next, the sand that has dropped to the bottom of the water tank is sent by the outer spiral blades toward the discharge portion at the front end of the water tank, and is lifted along the partition plate after being drained above the water surface. However, by providing a water passage in the lower part of the front part of the water tank, even water that is pushed up a little above the water level can return to the water level immediately through the water passage, so The drainage can be significantly improved.

Further, since the small diameter cylinder of the sieving cylinder is provided at the rear part of the water tank with a settling portion so as not to enter the water, the agitation in water by the small diameter cylinder can be prevented, and thereby the sedimentation of sand can be prevented. Therefore, it is possible to improve the sand collection efficiency, improve the sand recovery efficiency, and prevent the sand from accumulating in the discharge water tank.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a separator for fresh concrete, sand stone, etc. according to the present invention.

FIG. 2 is a sectional view taken along line AA of the separator for ready-mixed concrete, sand stone, etc. shown in FIG.

[Explanation of symbols]

 1 Sieve Tube 2 Rear Tube 2a Round Bar 3 Front Tube 4 Step Section 5 Small Diameter Tube 6 Opening 7 Small Hole 8 Inner Spiral Blade 9 Outer Spiral Blade 10 Shaft 11 Bent Section 12 Water Tank 13 Drain Port 14 Partition 15 Water Passage 16 Sedimentation Part 17 Input port 18 Stone 19 Sand 20 Water surface 21 Partition plate

Claims (1)

[Claims] 1. A rear cylinder formed by arranging round rods in a cylindrical shape with an appropriate gap formed therein, a front cylinder having a gradually decreasing diameter connected thereto, and a small-diameter cylinder having an opening at a rear end thereof. A sieve cylinder attached via a step is provided at the rear end of the sieve cylinder, and a large number of small holes are provided on the outer peripheral surface of the front cylinder of the sieve cylinder, and an inner spiral blade is attached to the inner periphery of the sieve cylinder. The outer spiral blades are attached to the outer periphery of the rear cylinder and the front cylinder, the shaft is attached to the center of the above-mentioned sieving cylinder, and the shaft is horizontally and rotatably arranged. At least the lower half of this sieving cylinder is inserted. , Arrange a water tank such that at least half of the outer spiral blade of the sieving cylinder facing the outer peripheral surface of the lower half of the outer spiral blade has a shape similar to the outer peripheral surface of the outer spiral blade, and a partition plate is provided at the front end of the water tank. A water passage is provided in the lower part of the front part of the water tank, and a water passage is provided at the rear end of the water tank so that a settling part can be formed A partitioning machine having a drainage port is provided so that raw concrete, sand stone, etc. put through the opening of the small-diameter cylinder of the above-mentioned sieving cylinder can be separated. .