JPS6339294B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for crushing crushed stone and the like and separating it into gravel and sand and collecting fine sand from the remaining polluted water.

[Conventional technology]

Conventional equipment of this type discharges polluted water into a settling basin, allowing impurities with low specific gravity such as mud and trash to overflow from the settling basin, and allowing fine sand with high specific gravity to precipitate, until the sediment layer reaches a certain amount. This is an extremely large-scale device that drains the settling basin and transports the fine sand that has settled.

[Problem to be solved] Conventional means either provide another settling basin for discharging polluted water during transport of fine sand, or suspend the previous process during transport to remove pollutants. Because it was necessary to prevent water from flowing, large areas of land were required and equipment costs increased. Furthermore, even if the device was large-scale, the collection efficiency was poor.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a fine sand sampling device that requires less installation space, has a simple structure, and has good sampling efficiency.

[Means for solving problems]

In order to achieve the above object, the present invention provides an endless rubber band with corrugated vertical walls provided on both sides in the longitudinal direction between the driving roller and the driven roller provided at both ends of the main frame. A vibrating frame that is vibrated by a vibrator with an elastic member such as a coil spring interposed thereon is attached, and a number of rotating rollers are attached to the vibrating frame in contact along the width direction of the lower surface of the endless rubber band, and the upper side of the rotating roller is The endless rubber band located at 1 is set so that it initially travels approximately horizontally in the direction of travel, and then slopes upward midway through, and is configured so that it travels while vibrating through a vibrating frame and rotating rollers using a vibrator.

[Effect]

In this invention, when the vibrator and drive roller are operated, the upper endless rubber band vibrates and moves from a low position to a high position, supplying polluted water containing fine sand to a roughly horizontal area of movement. If this is done, impurities with low specific gravity will not be able to climb up the slope, and when the endless rubber band reaches the top and turns over, fine sand with high purity will be discharged from the endless rubber band.

〔Example〕

Preferred embodiments of the present invention will be described below with reference to the drawings.

The main frame 1 is fixed on the ground by support legs 2, and has an upward slope starting midway in the longitudinal direction of the main frame 1. This main frame 1
are a pair of parallel rollers separated by a predetermined width, and a driving roller 3 and a driven roller 4 are attached to both ends of the rollers. A vibrating frame 5 is attached to the main frame 1 via an elastic member 6 such as a coil spring (see FIG. 2). A vibrating frame 5 attached to each of two parallel main frames 1
A tower 7 is provided so as to straddle the tower, and a vibration exciter 8 is attached to this tower 7. Therefore, when the vibration exciter 8 is operated, the tower 7 vibrates first, the vibration of the tower 7 is transmitted to the vibration frame 5, and the vibration of the vibration frame 5 is transmitted to the main frame 1 by the elastic member 6. It can be suppressed.

An endless rubber band 10 having corrugated vertical walls 9 on both sides in the longitudinal direction is stretched between the driving roller 3 and the driven roller 4 described above. Vibration frame 5
A large number of rotating rollers 11 are attached to the endless rubber band 10 along the width direction of the bottom surface of the endless rubber band 10. The endless rubber band 10 is set so that it initially travels approximately horizontally in the direction of travel and then slopes upward midway through. The polluted water containing fine sand is supplied onto the endless rubber band 10 at a portion where the endless rubber band 10 is moving approximately horizontally, that is, at a location indicated by arrow A in FIG.
The fine sand that has climbed up the slope is dropped from the discharge hopper 12. In addition, an appropriate number of water sprinklers 13 are provided along the way of the endless rubber band 10 in the direction of movement to further remove impurities with light specific gravity.

As shown in FIG. 3, the aforementioned rotating rollers 11 are installed in pairs on the left and right so as to be inclined downward toward the center of the endless rubber band 10. The center of the rubber band 10 is recessed, and the endless rubber band 10 in the width direction is slackened approximately in the shape of an arc. If the center of the endless rubber band 10 is depressed in a deep V-shape, the amount of fine sand to be discharged and conveyed will be reduced, and the amount of fine sand obtained per unit time will be reduced. , it is preferable to set it somewhere between not too deep and not too shallow.

The wavy vertical wall 9 is designed as shown in FIG. 4, and expands at the reversal point. The presence of this vertical wall 9 prevents fine sand from flowing out from the width end of the endless rubber band 10, and also allows polluted water to be discharged from a certain direction. The polluted water is drained from the endless rubber band 10 at the right end in Figure 1.
is discharged from the inverted point. Either install a discharge duct, etc. in this area, or make this area facing the reservoir.

The drive roller 3 is driven as shown in FIG.
The gear 14 is fixed to the shaft 3A of the roller 3, and the motor 1
A chain 17 may be stretched between the gear 16 and the gear 14 provided on the output shaft of the gear 5.

In the above-mentioned embodiment, the main frame 1 itself has an upward slope from the middle, but the main frame 1
The endless rubber band 10 itself may be flat, as long as it is set so that the endless rubber band 10 initially advances in a generally horizontal direction and then becomes sloped midway. To this end, in addition to providing an upward slope to the main frame 1, it is also possible to adjust the mounting height of the rotating roller 11.

When the vibrator 8 and the drive roller 3 are activated,
The vibrating frame 5 and the rotating roller 11 vibrate, and the endless rubber band 10 moving upward also vibrates. When polluted water containing fine sand is supplied onto the rubber band 10 at a portion where the endless rubber band 10 moves approximately horizontally, the rubber band 10 vibrates, so that impurities in the fine sand, such as mud and dirt, are removed. etc. are raised,
As the rubber band 10 advances while vibrating, the separation from the fine sand is further performed. Impurities are washed away with the water and cannot be climbed uphill along with the fine sand. The preferred slope is between 20 and 45 degrees. The rotation speed of the endless rubber band 10 is 8 m long.
A position of 0.5 to 1.5 rotations is suitable.

〔effect〕

As explained above, according to the present invention, the entire device has an extremely compact and simple structure, and a reservoir can be eliminated. Also,
The resulting fine sand has extremely few impurities,
Moreover, fine sand with low moisture content can be obtained. Furthermore, since the endless rubber band has vertical walls, there is no need to make a deep depression in the center of the rubber band, and the amount of fine sand that stays on the rubber band per unit area increases.
More fine sand can be collected in a shorter time.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the overall outline, Fig. 2 is a sectional view showing how the vibration frame is attached to the main frame, Fig. 3 is a front sectional view, Fig. 4 is a plan view of the endless rubber band, and Fig. 5 is a side view showing the overall outline. The figure is a side view showing an example of the driving means. 1... Main frame, 3... Drive roller, 4
... Driven roller, 5 ... Vibration frame, 6 ... Elastic member, 8 ... Vibrator, 9 ... Standing wall, 10 ... Endless rubber band, 11 ... Rotating roller.

Claims (1)

[Claims] 1. An endless rubber band with corrugated vertical walls on both sides in the longitudinal direction is stretched between a driving roller and a driven roller provided at both ends of the main frame, and a coil spring is mounted on the main frame. A vibrating frame that is vibrated by a vibrating machine with an elastic member such as The rubber band is characterized in that it is set so that it initially runs approximately horizontally in the direction of travel, and then slopes upward midway through, and is configured so that it travels while vibrating through a vibrating frame and rotating rollers using a vibration exciter. Fine sand sampling device.