JPH0261299B2 - - Google Patents

Abstract

Apparatus for crushing and washing ballast and the like comprises axially aligned and spaced apart first and second cylindrical bodies (4) and (6) interconnected by a screen barrel (13). The first body (4) has a feed hopper at the end remote from the screen barrel (13) and the bodies (4,6) are provided with feed water pipes (23). Extending lengthwise of the bodies (4,6) is a rotatable main shaft (7) on which the screen barrel (13) is mounted through radial spokes (14). The main shaft (7) mounts crush blade means (15) disposed within the bodies (4,6) and a first crush bowl (12) for co-operating with the end of the first body (4) adjacent to the screen barrel (13). A second crush bowl (18) is mounted on a rotatable jack shaft (17) coaxial with the main shaft (7) for co-operating with the end of the second body (6) remote from the screen barrel (13). The first body (4) and jack shaft (17) are mounted on respective tables (1,1') slidably supported on a base (2) for engagement with respective adjustable stops (22,22') for controlling the degree of engagement between the ends of the bodies (4,6) and the crush bowls (12,18). The tables (1,1') are biassed by respective springs (19,19') to engage the ends of the bodies (4,6) and the crush bowls (12,18) with the biassing force exerted by each spring (19,19') being adjustable.

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a gravel crushing and rewashing processing device for processing collected gravel into aggregate for high-quality construction concrete.

(b) Prior art and problems to be solved by the present invention Conventionally, gravel crushing and rewashing processing equipment has a cantilevered rotating main shaft at the center of a horizontal cylindrical body provided on a base, and this rotating main shaft is A crushing blade is spirally attached to the outer periphery of the adhered sleeve, a sliding table is provided on the right side of the horizontal cylindrical body supported by a roller placed on a base, and a bearing is supported on the top surface of this sliding table. A rotating sub-shaft is provided on the same axis as the rotating main axis provided at the center of the horizontal cylindrical body, and a crushing pot provided at the left end of this rotating sub-shaft is fitted to the right end of the horizontal cylindrical body to collect collected gravel. However, in the case of gravel containing many soft stones (dead stones), red clay lumps, and clay lumps, this type of equipment uses a rotating crusher in a horizontal cylindrical body. As it is being fed towards the discharge port while being agitated by the blade, the amount of mud created by crushing soft stone and fine sand created by cutting off the corners of crushed stone increases too much. The crushing action of the crushing blade or crushing pot and the mutual rubbing action of gravel and soft stones are reduced, and it is not possible to produce high-quality gravel that meets JIS standards with just one rewashing process using the crushing rewashing processing device. Since this is not possible, it is necessary to carry out the rewashing process twice in succession using two crushing and rewashing processing apparatuses, which has the disadvantage of increasing costs.

(c) Means for solving the problem In view of the above, the present invention provides a base material for efficiently finishing gravel mixed with many soft stones, red clay lumps, clay lumps, etc. into high-quality gravel that complies with JIS standards. A movable platform is provided so as to be slidable left and right supported by rollers provided above, and a rear cylindrical body section equipped with a gravel charging hopper is placed on the top surface of this movable platform, and the rear cylindrical body section is made to correspond to the rear cylindrical body section. A front cylindrical body was provided on the base with a slight interval between the rear cylindrical body and the front cylindrical body, and the left end was supported by a bearing at the center of the rear cylindrical body and the front cylindrical body, and the drive motor and the belt were connected to each other. A rotating main shaft is provided, a sleeve is fitted to this main shaft, and a crushing bowl is attached to the sleeve corresponding to the right end of the rear cylindrical body.
The screen cylinder is attached to the main shaft of rotation between the rear cylindrical body and the front cylindrical body by being supported by spokes provided radially inward, and its left end is on the outside of the rear cylindrical body and its right end is on the outside of the front cylindrical body. A movable base is installed on the right side of the front cylindrical body so that it can slide left and right supported by rollers provided on the base. A rotating sub-shaft is provided which is connected to the motor by a belt, and a crushing pot is provided at the tip of this rotating sub-shaft to fit into the right end of the front cylindrical body, and a crushing pot is provided on the front cylindrical body and the rear cylindrical body, respectively. This is a combination of water supply pipes.

(d) Embodiments and operations An example of implementing the present invention will be described below with reference to the drawings.

In the figure, 1 is a movable base that is supported by rollers 3 on a base 2 that is tilted so that it becomes lower as it extends to the right side by a support leg a, and is slidable from side to side. 4 is a movable base 3. A rear cylindrical body with a charging hopper 5 placed on the upper surface, 6 a front cylindrical body provided on the base 2 at slight intervals in correspondence with the right end of the rear cylindrical body 4, and 7 a front part. A rotary main shaft whose left end is supported by a bearing 8 at the center of the cylindrical body part 6 and the rear cylindrical body part 4, and which is connected to a drive motor 9 by a belt; 11 is a sleeve fitted to the rotary main shaft 7;
12 is a crushing pot provided on the sleeve 11 located at the right end of the rear cylindrical body 4, and 13 is a crushing bowl provided radially inside the sleeve 11 located between the rear cylindrical body 4 and the front cylindrical body 6. A screen body supported by spokes 14, the left end of which is the rear cylindrical body 4.
The right end is fitted inside the front cylindrical body 6 on the outside.

15 is a crushing blade attached to the sleeve 11; 16 is a movable base supported by a roller 3 provided on the base 2 on the right side of the front cylindrical body 6 so as to be slidable left and right; 17 is a bearing on the movable base 16. A rotating sub-shaft supported by a rotating main shaft 8 and linked to a drive motor 9 by a belt on the same axis as the rotating main shaft 7.

Reference numeral 18 is provided at the tip of the rotating sub-shaft and is a crushing bowl that fits into the right end of the front cylindrical body 6. Reference numeral 19 is provided on the back side of the movable base 1 or 16 and extends to the left side or right side of the movable base 1 or 16. 20 is a receiving piece for the spring 10 that engages with the handle adjustment screw 21 provided on the base 2 in parallel with the spring 19; 22 is a movable base provided at an appropriate position on the base 2; 1 or 16 stopper shafts,
23 is a water supply pipe connected to the front cylindrical body 6 and the rear cylindrical body 4;

Since the present invention is configured as described above, now,
When rewashing gravel using the device according to the present invention, first engage the movable base 1 or 16 with the stopper shaft 22, and then operate the handle of the adjusting screw 21 to move the receiving piece 20. Spring 19
If the rotation main shaft 7 and the rotation sub-shaft 17 are rotated by the drive motor after being forcefully received,
Since the crushing pots 12 and 18 rotate, in this state, the water supply pipe 23 is supplied with gravel from the hopper.
When water is supplied, the gravel is sent to the right side while being stirred by the crushing blade 15 in the rear cylindrical body 4, and the crushing bowl 12 rotates on the right side of the body 4 by the pressing force of the following gravel. While being strongly rubbed against it, it is pushed back to the left against the elasticity of the spring 19, and is pushed out from between the right end of the rear cylindrical body 4 and the crushing bowl 12, and then passes through the rotating scoop body 13. Then, all of the pieces are sent to the right side while being stirred by the crushing blade 15 in the cylindrical body 6, and are sent to the right side in the front cylindrical body 6.
5, the crushed gravel is sent to the right side while being stirred by the front cylindrical body 6, and is strongly rubbed against the crushing bowl 18, which rotates due to the pressing force of the following gravel, against the elasticity of the spring 19. The crushing pot 18 and the front cylindrical body 6 tend to be pushed back toward the right side.
After being discharged from between the right end of the gravel and the gravel, it is washed, but as mentioned above, the crushing action of the crushing blade 15 and the crushing bowl 12 rotating in the rear cylindrical body 4 and the mutual interaction of gravel As a result of the rubbing action, mud produced by crushing soft stones and fine sand produced by the edges of crushed stones being removed are washed away by water supplied from the water supply pipe 23 while passing through the rotating screen cylinder 13. Then, due to the crushing action of the crushing blade 15 and the crushing pot 18 rotating inside the front cylindrical body 6, and the rubbing action of the gravel, the soft stone etc. that are still mixed in without being crushed are completely crushed. Along with being
Dirt adhering to the corners of crushed stones and gravel is completely removed before being discharged, making it possible to efficiently collect high-quality gravel.

In the present invention, by operating the adjusting screw 21 and stopper shaft 22 attached to the base, the crushing pot 12 fitted to the rear cylindrical body 4 and the crushing pot fitted to the front cylindrical body 6 can be adjusted. Since the degree of engagement with 18 and the elasticity of spring 19 can be adjusted, the crushing pot 12,
By adjusting the degree of fitting of the spring 18 and the elasticity of the spring 19, it is possible to collect desired quality gravel.

The apparatus according to the present invention can be effectively used not only for crushing and rewashing gravel as described above, but also for crushing concrete structures or glass products. That is, blocks produced from unnecessary concrete structures are crushed into powdered cement and gravel by the apparatus according to the present invention,
The former can be effectively reused as a bed for buried pipes, and the latter can be effectively reused as aggregate for concrete. Further, by crushing unnecessary glass products such as bottles with the apparatus according to the present invention, it is possible to easily mass-produce granular glass raw materials that are easy to reuse.

(e) Effects of the present invention As described above, the present invention is capable of removing soft stones (dead stones) and red clay lumps mixed in the collected gravel by the crushing action of the rotating crushing blade and the crushing pot in the rear cylindrical body. The mud produced by crushing the clay lumps and the fine sand produced by removing the corners of the crushed stones are supplied with water as they pass through a rotating screen barrel provided between the rear cylindrical body and the front cylindrical body. Soft stones that are washed away by the water supplied from the pipe and are still mixed in without being crushed due to the crushing action of the crushing blade and the crushing pot that rotate in the front cylindrical body, and the rubbing action of gravel against each other. etc. are completely crushed, and the dirt adhering to the corners of the crushed stones and gravel are completely removed before being discharged, so the crushing action between the crushing blade and the crushing pot and the mutual interaction of the gravel are reduced as before. Efficient JIS cleaning with one rewashing process without reducing the rubbing effect
Since it is possible to mass produce high-quality gravel that meets standards, it can make a major contribution to the industry.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of the gravel crushing and rewashing processing apparatus according to the present invention. FIG. 2 is a plan view of the same as above. 1 in the figure is a movable platform. 2 is the base. 3 is a roller.
4 is the rear cylindrical body. 6 is the front cylindrical body. 7 is the rotating main shaft. 8 is a bearing. 9 is a drive motor. 11 is the sleeve. 12 is a crushing pot. 13 is the screen body. 14
is a spoke. 15 is a crushing blade. 16 is a movable platform. 17
is the rotating secondary axis. 18 is a crushing pot. 23 is the water supply pipe.

Claims (1)

[Claims] 1. A movable platform is supported by rollers provided on the base so as to be slidable left and right, and a rear cylindrical body equipped with a gravel charging hopper is placed on the top surface of this movable platform. A front cylindrical body is provided on the base at a slight interval in a corresponding manner, and the left end is supported by a bearing at the center of the rear cylindrical body and the front cylindrical body, and the driving motor and belt are used. A connected rotating main shaft is provided, a sleeve is fitted to this main shaft, a crushing pot is attached to the sleeve corresponding to the right end of the rear cylindrical body, and a rotating main shaft between the rear cylindrical body and the front cylindrical body is provided with a crushing bowl. The screen body is attached by being supported by spokes provided radially on the inside, its left end fits outside the rear cylindrical body, the right end fits inside the front cylindrical body, and the right side of the rear cylindrical body fits on the base. A movable base is provided so as to be slidable left and right supported by the provided rollers, and a rotating sub-shaft is provided on this movable base on the same axis as the rotating main shaft and connected by a drive motor and a belt, and the rotating sub-shaft is A gravel crushing and rewashing device is provided with a crushing bowl that fits into the right end of the front cylindrical body at the tip, and water supply pipes are connected to the front cylindrical body and the rear cylindrical body, respectively.