JPH027698B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention provides mining gravel mixed with soft stone or slough, high quality gravel that can use sand as aggregate for concrete, gravel that can be processed into sand, This invention relates to a sand crushing device.

(b) Prior art and problems to be solved by the present invention Conventionally, a cantilevered rotating main shaft was provided at the center of a cylindrical body, and stirring blades were spirally attached to a sleeve fitted onto the rotating main shaft. Gravel and sand that can be used as aggregate for concrete are manufactured by stirring the mined gravel and sand, crushing the soft stone mixed in and the mud adhering to the gravel, and then washing it. In the case of this type of gravel or sand that contains a large amount of soft stone or sludge, it takes time and effort to crush the soft stone and remove the sludge, making it difficult to efficiently produce high-quality gravel or sand. It was difficult.

(c) Means for solving the problem In view of the above, the present invention removes as much impurities as possible from the mining gravel and sand, such as soft stone and sludge, in the treatment tank. The mud adhering to the soft stone and gravel that is still mixed in is removed by stirring blades and stirring blade pieces that rotate inside the cylindrical body integrally installed at the bottom of the body and near the discharge port provided at the bottom end of the body. In order to efficiently crush gravel and sand mixed with soft stones and sludge into high-quality gravel and sand, a cylindrical barrel is installed at the bottom of the processing tank. A mold discharge port is provided, and a rotating main shaft supported by a bearing and rotated by a motor is provided at the center of the processing tank and body. Correspondingly, a brushing rod for preventing sedimentation is provided radially protruding, a stirring blade is provided spirally corresponding to the body, and stirring blade pieces are provided diagonally downwardly protruding radially on the lowermost sleeve, Gravel at the upper end of one side of the above treatment tank.
A sand input hopper is installed, and a pressurized water or pressurized air discharge pipe is connected to the processing tank corresponding to the lower part of this input hopper, and a discharge pipe for carrying out foreign matter is connected to the center side of the processing tank corresponding to this discharge pipe. A receiving plate is provided on the rear side of the conveyor, a sludge outlet is provided on the other upper side of the processing tank, and a sieve with vertical swirl prevention plates is fixed on the inner surface.

(d) Embodiments and operations Embodiments of the present invention will now be explained with reference to the drawings as follows.

In the figure, 1 is a processing tank fixed to the machine frame 2, and a cylindrical body 3 is integrally provided at the lower part of the funnel-shaped body.A rubber gasket 4 is interposed at the lower end of this cylindrical body 3. A funnel-shaped discharge port 5 is detachably provided with a screw 6.

7 is a rotating main shaft supported by bearings 8, 8 fixed to the machine frame 2 and provided at the center of the processing tank 1 and the body 3;
It is rotated by a motor 9 attached to the machine frame 2.

Reference numeral 10 denotes a brushing rod for preventing sedimentation of gravel, sand, mud, etc. that tends to settle on the slope a of the lower part of the treatment tank 1, and is provided radially projecting from the sleeve 11 in correspondence with the lower part of the treatment tank 1. .

12 is a stirring blade spirally provided on the sleeve 11 in correspondence with the body 3; 13 is the lowest sleeve 11;
14 is a gravel and sand charging hopper attached to the upper end of one side of the processing tank 1, and 15 is connected to the lower part of the charging hopper 14 in the processing tank 1. A discharge pipe 16 for pressurized water or pressurized air is a screen conveyor for carrying out foreign substances, which is provided at the center of the processing tank 1 in correspondence with the discharge pipe 15, and a screen conveyor made of wire mesh is fixed to the inner surface of the processing tank 1 on the rear side. A receiving plate 17 is provided. 18 is a sludge discharge port that is vertically adjustable at the top of the other side of the processing tank 1; 19 is a sieve with a swirl prevention plate 20 installed vertically;
It is fixed to the inner surface of the primary treatment tank 1 in correspondence with the sludge discharge port 18, and the eddy current prevention plate 20 suppresses as much as possible the vortex generated in the treatment tank 1 due to the rotation of the rotating main shaft 7, which will be described later. This sieve can prevent gravel and sand from being discharged from the discharge port 18.

Since the present invention is constructed as described above, when the discharge pipe 15 is located below the water surface due to the pressure water discharged from the discharge pipe 15, the motor 9
By energizing, the rotating main shaft 7 is rotated, and mining gravel and sand are fed into the treatment tank 1 from the input hopper 14, so that gravel that is sinking into the water, soft stone with a small specific gravity mixed in the sand, etc. The waste is removed from the treatment tank 1 by pressure water discharged from the discharge pipe 15.
It is blown towards the receiving plate 17 provided on the center side of the
Excess water in the form of sludge is placed on the conveyor 16 and carried out from the treatment tank 1 to the outside by the swirl prevention plate 2.
Gravel and sand are discharged from the sludge discharge port 18 after passing through a sieve 19 provided vertically. Gravel and sand descend along the inner surface of the treatment tank 1 and are stirred in the cylindrical body 3. While being stirred by the blades 12 and stirred by the stirring blades 13 near the outlet 5,
The mud adhering to the mixed soft stones and gravel is crushed and discharged from the discharge port 5.

Incidentally, even if the pressurized air is discharged from the discharge pipe 15 described above, it is possible to blow soft stones and sludge with low specific gravity mixed in gravel and sand toward the center of the treatment tank 1, as described above. In this case, water is separately supplied into the treatment tank 1.

Further, if the discharge port 5 tends to be clogged with gravel or sand and is difficult to discharge, a vibrator 21 may be provided on the outer surface of the discharge port 5.

(e) Effects of the Invention As described above, the present invention is supplied into the treatment tank from the input hopper, and removes impurities such as soft stone with a low specific gravity and scum mixed in with the gravel and sand that are sinking in the water using pressurized water or water. Contaminants are removed by blowing them to the center of the processing tank using pressurized air and transporting them to the outside using a conveyor, and then the foreign matter is placed inside a cylindrical body that is integrated at the bottom of the processing tank. By the crushing action of the rotating stirring blades and the stirring blade pieces rotating near the discharge port provided at the lower end of the cylindrical body, the soft stones and mud adhering to the gravel that are still mixed in are crushed. Because it is discharged from the outlet, it is possible to process the mined gravel and sand, which are often contaminated with foreign substances such as soft stone and sludge, into high-quality gravel and sand that can be efficiently used as aggregate for concrete. Because of this, it can make a great contribution to the industry as a gravel and sand crushing device.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view of a gravel and sand crushing apparatus according to the present invention. Figure 2 is a partially cutaway front view of the same as above. FIG. 3 is a plan view of the processing tank. In the figure, 1 is a processing tank, 3 is a cylindrical body, 5 is a discharge port, 7 is a rotating shaft, 9 is a motor, 10 is a brushing rod, 11 is a sleeve, 12 is a stirring blade, 13 is a stirring blade piece, 14 is an input hopper, 15 is a discharge pipe,
16 is a conveyor for carrying out foreign matter, 17 is a receiving plate,
18 is a sludge discharge port, 19 is a sieve, and 20 is a swirl prevention plate.

Claims (1)

[Claims] 1. A funnel-shaped outlet is provided at the lower end of a cylindrical body integrally provided at the bottom of the treatment tank, and a rotating main shaft supported by a bearing and rotated by a motor is provided at the center of the treatment tank and the body. A sleeve is fitted onto the rotating main shaft, and a brushing rod for preventing sedimentation is provided radially protruding from this sleeve in correspondence with the lower part of the processing tank.
A stirring blade is provided in a spiral shape corresponding to the body, and the stirring blade pieces are provided on the lowermost sleeve in a radial manner protruding diagonally downward, and a gravel and sand charging hopper is attached to the upper end of one side of the processing tank, A discharge pipe for pressurized water or pressurized air is connected in the processing tank corresponding to the lower part of this input hopper, and a conveyor for carrying out foreign matter is connected to the center side of the processing tank corresponding to this discharge pipe, and a conveyor for carrying out foreign matter is connected to the rear side of the processing tank. A gravel and sand crushing device is equipped with a plate, a sludge discharge port is provided at the top of the other side of the processing tank, and a sieve with a vertical eddy current prevention plate fixed on the inside is fixed.