JPS5836685A - Vibrating screen machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibrating sieve, and more particularly, KnlaK relates to a vibrating sieve suitable for separating excavated earth and sand from slurry in a slurry shield method.

Conventionally, in the slurry shield method, when excavated earth and sand are separated, it has been difficult to efficiently separate the remaining soil and the slurry attached to it and then dump it. For this reason, for example, when using leftover soil as a bone material, processing equipment must be provided.

Furthermore, in order to compensate for the sludge that adheres to the remaining soil and is discharged, a membership fee is required for a large amount of cropping agents, which requires large-scale equipment and a lot of effort and cost.

This invention was made by paying attention to such conventional problems, and in order to solve the problems.

Efficiently removes slurry from excavated soil transported from excavators
The present invention provides a vibrating sieve that efficiently sieves the slurry adhering to soil.

Hereinafter, embodiments of the invention will be described based on the attached Figure 1iK.

agi* is a schematic configuration (2) showing a slurry treatment apparatus in which the present invention is implemented.

The Il#11 earth and sand excavated by the excavator 1 equipped with a single-turn cutter head is conveyed via the first conveyor 3.

Separator S installed below the discharge end of the first conveyor 3
K is supplied.

A vibrating sieve 7 is provided at the upper part of the separator 5 to separate the dust conveyed by the a11 conveyor 3, and the lower part of the vibrating sieve 7 is directed toward the second conveyor 9.

The discharge end of the above-mentioned vibrating sieve is connected to a crusher 11 for crushing the screened earth and sand of vibration-1.

The crusher 11 has a crushing chamber 1 for crushing excavated earth and sand.
3, this crushing ii! The lower part of 13 is open toward the second conveyor 9. Namely.

The separator 5 and the crusher 11 constitute a separation and crushing device 15.

The discharge end of the second conveyor 9 is connected to a pressure pump 17 , and the pressure pump 17 is connected to a discharge pipe 19 .

Further, the discharge end of the discharge pipe 19 reaches the outside and opens above the vibrating sieve machine 21 related to the present invention #4, which is provided in the form of a pedestal.

As shown in FIGS. 2 and 3, this vibrating sieve machine 21 has machine frames 23m and 23 which are constructed from angle screens on both left and right sides.
b is provided, and this machine frame 23a.

An upper bed sieve 25 and a lower bed sieve 27 are installed in the vertical center of 23b and in the lower part, respectively.

The upper bed sieve 25 is composed of a coarse mesh M, and the lower bed sieve 27 has a medium mesh V on the insertion side (right side in FIG. 2) and a fine mesh M on the discharge side (llsl left diagram). , respectively. Each sieve mesh has a coarse mesh M constituting the upper sieve 25 with a diameter of 10 to 20 m, and a middle mesh M1 of the lower sieve 27.
and dense mesh M, 1 to 2 ml each, 0
．． A value of 3 to 0.7 wx is appropriate.

The discharge side end K (the left end in FIG. 3) of the vibrating sieve 21 is provided with a chute 29 for discharging the screened product remaining on the sieve surface sent from the lower sieve 25 and the lower sieve 27. The chute 29 is opened downward.

Further, a vibration exciter 33 is attached to the upper part of the single aircraft frame 23m, 23b in conjunction with the drive device 31 to vibrate the aircraft body.

A first hopper 35 is provided below the middle mesh M of the vibrating machine 21 to receive and stop the slurry sieved by the middle mesh M,
A mud storage tank 37 is provided to store the slurry that has gone through the process. The slurry storage tank 37 is for adjusting the concentration of the slurry while stirring the slurry with an internal stirrer, and is used to dissolve the cropping agent sent from the slurry storage chamber 41 by the conveyor 43. A machine 45 is provided at the top.

A supply pump 47 is connected to the mud storage tank 37, and the supply pump 47 sends the slurry in the mud storage tank 37 to a slurry relay tank 49. From this relay tank 49.

Supply pipes 55,57 with pumps 51,53 interposed respectively
Sludge is sent to the excavator 1 and the pressure pump 17.

The entire system in which the slurry sieved through the meshes M and IIC"C of the vibrating sieve machine 21 is sent to the excavator 1 and the pressure dump 17 constitutes a processing device 59.

Below the dense mesh Ms of the vibrating sieve machine 21, there is a dense mesh! A second hopper 61 is provided to receive and stop the slurry sieved by M, and a settling tank 63 is provided to store the slurry that has passed through the second hopper 61.

The sand settling tank 63 is provided to separate the slurry from water by settling it, and is connected to a fresh water tank 65 for storing overflow water.

A water pipe 69 having a nozzle 67 at its tip is connected to the fresh water tank 65 with a pump 71 interposed therebetween. The nozzle 67 is provided above the dense mesh M of the #l recording vibrator 21 and the upper lower sieve 25 so as to open downward.

Further, below the chute 29, a residual soil hopper 73 is provided.
A dump truck or the like is provided to discharge the remaining soil to the outside of the machine via the remaining soil hopper 73.

Tonoyo 5Km It is.

Next, the operation of the above embodiment will be explained.

The excavated soil excavated by the rotary cutter head Ak of the excavator 1 is mixed with the slurry sent from outside the excavator 1, and is supplied to the separation and crushing device 15 by the 1111 conveyor 3, where large-diameter gravel is separated and crushed. After being processed, it is fed to the input end of the second conveyor 9.

The earth and sand carried in and crushed by the second conveyor 9 is sent to the pressure pump 17, and is supplied to the upper bed sieve 25 located above the inner mesh M of the vibrating sieve machine 21 via the discharge pipe 19.

This vibrating sieve machine 21 vibrates the vibrating machine 33, and therefore, the earth and sand supplied onto the upper bed sieve 25 are sequentially passed through the chute 29.
Shake off the dirt while sending it to the side.

The slurry in the earth and sand sieved by the upper bed sieve 25 and the middle meshes M and K is supplied from the first hopper 35 to the mud storage tank 37, and is fed to the mud storage tank 37 by the agitator 39 in the mud storage tank 37.
Adjustments are made once while stirring. That is, the slurry is supplied from the first hopper 35, and the cropping agent sent by the color conveyor 43 to the first cropping slurry storage 3i141 is dissolved in the melting machine 45, and the slurry is supplied to the mud storage tank 37, and the slurry is adjusted to the usable concentration. It's the noodles.

The slurry thus concentrated is sent to the relay tank 49 by the supply pump 47 connected to the mud storage tank 37, and is sent to the relay tank 49 via the pumps 51 and 53, respectively. It is supplied to the horizontal milling machine 1 and the pressure pump 17.

That is, the slurry supplied to the excavator l is
The slurry that is pressurized and supplied to the pressurizing chamber and supplied to the pressure pump is supplied to the vibrating sieve 21 along with the excavated earth and sand.

In addition, the fine souvenirs remaining on the upper surface of the upper bed sieve 25 and the medium mesh M are sent to the chute 29 side, and are washed with water from the clean water tank 65 sprayed from the nozzle 67 above the dense mesh M. The sludge adhering to the
It passes through a hopper 61 and is sent to a settling tank 63. Then, in the sand settling tank 63, the slurry contained in the washing water settles and is separated from the water, and the overflow water is sent to the fresh water tank 65.

At this time, the settled sand and the like are supplied to the mud storage tank 37.

The water stored in the fresh water tank 65 is sent to the nozzle 67 via the pump 71.

In this way, the thin souvenirs on the dense mesh M between the upper floor 1125 and the lower floor @ 27 are removed from the chute 29 as residual soil. The remaining soil is sequentially discharged to the outside of the machine via a hopper 73 using a dump truck or the like.

As described above, this invention comprises an upper bed sieve with a coarse mesh, a lower bed sieve consisting of a medium mesh and a fine mesh, and the medium mesh of the lower bed sieve is provided on the supply side, and the fine mesh is Since it is a vibrating sieve equipped with a sieve on the discharge side, it has the effect of efficiently sieving out the slurry attached to the remaining soil.

It should be noted that the present invention is not limited to the embodiment described in #i, and can be implemented in other forms than the embodiment described above.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of a slurry treatment apparatus embodying the present invention, and FIGS. 2 and 3 are a partially cutaway front view and a side view, respectively, of an example of a vibrating sieve according to the present invention. . (Explanation of main symbols shown in the drawings) 25...Upper bed sieve 27...Lower bed sieve M1...Coarse mesh 3-
M,...Nakametshu M1...Written patent applicant Rawo Kogyo Co., Ltd., Kaijin Patent attorney: Tamotsu Miyoshi, one male attorney Patent attorney: Hidekazu Miyoshi, Kazu J Procedural amendment (voluntary) October 1982 February 29, 1, Indication of the case 1981 Kyokai-Atsushi No. 135629 2, Name of the invention 1lII 3. Relationship with the case by the person making the amendment Applicant's address (residence) Kyobashi-chome, Chuo-ku, Tokyo 1 No. 1 name (
Name)") Su Kogyo Co., Ltd., President Kazutake Seki Mizu 4, Agent Postal code 105 Address 8th floor 6, Toranomon Building, 1-18 Toranomon, Minato-ku, Tokyo Subject of amendment (11 Detailed Description of the Invention Column (2111 Page 7, Contents of Amendment (1) Page 6 of the Specification, Line 16 and Line 17 of the same) A nozzle 67 may be provided to spray the water that has been removed.'' (2) Amend Figures 1 and 2 as separate sheets. & List of attached documents (1) At least one amended drawing

Claims (1)

[Claims] The lower sieve 25 is composed of a coarse mesh M1, the lower sieve 27 is composed of a medium mesh M, and a fine mesh L)[, and the medium mesh V of the lower sieve 27 described in #I is on the suppressing side. 411, and an IF Metsy SM was installed on the discharge side.
1 vibrating sieve machine.