JP4072151B2 - Muddy / Muddy water granulator - Google Patents

Description

  The present invention relates to a mud / mud granulating device that granulates mud and mud generated by excavation of a drilling device.

Conventionally, various apparatuses for granulating an object to be processed such as muddy water are known (for example, see Non-Patent Document 1).
"HF CONE MIXER Engineering System Series" Taiheiyo Kiko Co., Ltd.

  The apparatus described in the above-mentioned document 1 is a mixer that can be used for mixing, kneading, granulating and dispersing. For example, when granulating (granulating) mud, mud, water and solidification. It is done by mixing cement as an agent.

  However, in the apparatus described in the above document, when granulating mud, mud, water and cement as a solidifying agent are simply stirred and kneaded, so that mud is completely granulated. Is difficult, and the process time for granulation is long. Further, since cement is used as a solidifying agent, there is a problem that the particulate matter cannot be backfilled and reused.

  The present invention has been made in view of the above-described problems of the prior art, and can fully granulate mud and / or mud water, shorten the granulating process time, and An object of the present invention is to provide a mud concentration / muddy water granulating apparatus that can refill a granular material in a state satisfying an emission standard because cement is not used as a solidifying agent.

  The present invention is a mud / muddy water granulating device for granulating mud or / and mud, which is provided on a mixer main body, a rotating shaft provided at the center of the mixer main body, and the rotating shaft. A plurality of spiral blades configured by a plurality of large plate blades spaced apart from each other along the axial direction of the rotation shaft and symmetrical with respect to the axis of the rotation shaft; and the rotation shaft. A plurality of small plate blades that are symmetric with respect to the axis of the rotation axis, and an inner wall inner peripheral surface of the mixer body that is provided in the vicinity of the inner peripheral surface of the inner wall radially outward of the rotary shaft. An outer blade portion that rotates in a direction opposite to the rotation direction, wherein each of the large plate blades and each of the small plate blades are arranged in an approximately equal interval in the rotation direction of the rotation shaft. Provide mud concentration and mud granulation equipment

  In addition, it is preferable that the plurality of spiral blades are spaced apart at a constant interval along the axial direction of the rotating shaft. Moreover, it is preferable that the large plate blades of the spiral blades are spaced apart at a constant interval along the axial direction of the rotating shaft. Each of the plurality of small plate blades may be provided between two spiral blades adjacent to each other in the axial direction of the rotation shaft.

  One of the plurality of small plate blades may be provided above the spiral blade located at the uppermost position on the rotation shaft. In addition, an upper end plate blade that is axisymmetric with respect to the axis of the rotation shaft can be provided at a position above the small plate blade that is provided above the spiral blade located at the uppermost position on the rotation shaft. .

  One of the plurality of small plate blades may be provided below the spiral blade located at the lowest position on the rotation shaft. In addition, a lower end plate blade that is axisymmetric with respect to the axis of the rotation shaft can be provided at a position below the small plate blade that is provided below the spiral blade located at the lowest position on the rotation shaft. .

  The large plate blade may be provided with reinforcing means for reinforcing the leading edge portion in the rotation direction of the large plate blade. The small plate blade may be provided with reinforcing means for reinforcing the leading edge of the small plate blade in the rotation direction. Further, the upper end plate blade may be provided with reinforcing means for reinforcing the front edge portion in the rotation direction of the upper end plate blade. The lower end plate blade may be provided with a reinforcing means for reinforcing the front edge portion in the rotational direction of the lower end plate blade.

  The outer blade portion is preferably a scraper. Further, it is preferable to further include a dehydrating means. Moreover, it is preferable that the rotational speed of the rotating shaft on which the plurality of spiral blades are arranged is faster than the rotational speed of the outer blade portion. For example, the rotation speed of the rotating shaft may be about 80 to 250 rotations per minute, and the rotation speed of the outer blade may be about 60 rotations per minute. In addition, it is preferable that the mud / muddy water granulating apparatus granulates the mud or / and mud using a stabilizer. The stabilizer can be an appropriate amount of incineration ash. The mud concentration / muddy water granulating apparatus can use an appropriate amount of a solidifying agent in addition to the stabilizer. For example, the solidifying agent can be artificial zeolite.

  According to the present invention, mud concentration and / or mud water can be completely granulated, the granulating process time can be shortened, and moreover, since no cement is used as a solidifying agent, particulate matter can be discharged. It can be made backfillable when filled.

The best mode for carrying out the mud concentration / mud water granulating apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 schematically shows a mud / mud granulating apparatus for granulating mud or / and mud according to the present invention. A mud / muddy water granulating apparatus 1 shown in FIG. 1 granulates mud or / and mud using an incinerated ash 100 as a stabilizer, and includes a mixer body 2 as a base. A pair of left and right supply ports 3 for supplying an appropriate amount of incinerated ash 100 as a stabilizer used when granulating muddy or / and muddy water into the mixer main body 2 is provided in the upper part of the mixer main body 2. It has been. A hopper 4 into which an appropriate amount of incineration ash (stabilizer) 100 is directly charged is provided upstream of the supply port 3, and the incineration ash 100 charged into the hopper 4 is supplied by the conveyor 5 to the supply port 3. To the mixer body 2 through the supply port 3.

Further, a muddy water supply port 6 for supplying muddy water into the mixer main body portion 2 and a muddy water supply port 7 for supplying muddy water into the mixer main body portion 2 are respectively provided at the upper part of the mixer main body portion 2. Yes. The mud concentration accommodated in the mud concentration tank 8 is conveyed to the mud concentration supply port 6 through the mud concentration supply pipe 10 by the pump 9. Similarly, the muddy water accommodated in the muddy water tank 11 is conveyed to the muddy water supply port 7 through the muddy water supply pipe 13 by the pump 12. The mud concentration supply pipe 10 and the mud water supply pipe 13 are provided with a common dewatering device 14. A mud concentration valve 15 and a mud water valve 16 are provided on the downstream side of the dewatering device 14, respectively. ing.

The dewatering device 14 dewaters the mud that is supplied from the mud tank 8 through the mud supply pipe 10 to the mud supply port 6 and also passes from the mud tank 11 through the mud supply pipe 13 to the mud supply port 7. It is for dehydrating the supplied muddy water. Accordingly, in the mixer main body 2, the mud dehydrated by the dewatering device 14 is supplied through the mud concentration supply port 6, and the muddy water dehydrated by the dewatering device 14 is supplied through the mud water supply port 7. Supplied. Further, by controlling the mud concentration valve 15 and the mud water valve 16 by appropriate means, the object to be treated can be any one of mud, mud, mud and mud.

  Further, an appropriate amount of solidifying agent can be introduced into the mixer body 2 by an appropriate means (not shown). This solidifying agent is used in addition to the incinerated ash 100 as a stabilizer when granulating muddy or / and muddy water. For example, artificial zeolite can be used. In addition, a discharge port 18 is provided at the center of the lower portion of the mixer main body 2 to discharge the granular material produced as described later. The discharge port 18 has a discharge port 18 as shown in FIG. The door 29 is provided by appropriate means including an air cylinder. An air vent 19 is provided at the top of the mixer body 2.

  As shown in FIG. 2, a rotating shaft 20 is provided in the mixer body 2 at the center of the mixer body 2. The rotating shaft 20 can be rotated by a motor 22 that is a drive source, and is connected to the motor 22 via a belt 23a, pulleys 23b, 23c, and the like. As shown in FIGS. 2 and 3, the rotary shaft 20 is provided with a plurality of spiral blades 21 that are spaced apart from each other at regular intervals along the axial direction of the rotary shaft 20. Each spiral blade 21 is composed of a plurality of large plate blades 31 that are axisymmetric with respect to the axis of the rotation axis. The large plate blades 31 of the spiral blades 21 are spaced apart from each other at regular intervals along the axial direction of the rotary shaft 20 (see FIG. 3B), and each large plate blade 31 and each of which will be described later. The small plate blades 32 are aligned and arranged at substantially equal intervals in the rotation direction of the rotary shaft 20 (FIG. 3A). The large plate blades 31 and the small plate blades 32 shown in FIG. 3A are aligned and arranged at equal intervals of about 45 degrees.

  In addition, the rotary shaft 20 is provided with a plurality of small plate blades 32 (see FIG. 3C) that are line-symmetric with respect to the axis of the rotary shaft 20. Each of the plurality of small plate blades 32 is provided between two spiral blades 21 adjacent to each other in the axial direction of the rotating shaft 20. Further, as shown in FIG. 2, one of the plurality of small plate blades 32 can be provided above the spiral blade 21 positioned at the uppermost portion on the rotation axis. Similarly, one of the plurality of small plate blades 32 can be provided below the spiral blade 21 located at the lowest position on the rotation axis.

  Further, as shown in FIG. 4, the upper plate blade 33 that is line-symmetric with respect to the axis of the rotary shaft 20 is provided on the small plate blade 32 provided above the spiral blade 21 positioned at the uppermost position on the rotary shaft. It can be provided in an upper position. Similarly, the lower end plate blade 34 that is axisymmetric with respect to the axis of the rotary shaft 20 may be provided at a position below the small plate blade 32 that is provided below the spiral blade 21 located at the lowest position on the rotary shaft. it can. The upper plate blade 33 and the lower plate blade 34 can be the same member as the large plate blade 31 of the spiral blade 21, and can be configured with a smaller number than the number of large plate blades 31 constituting the spiral blade 21. . For example, since each spiral blade 21 shown in FIG. 4 is composed of three large plate blades 31, the lower end plate blade 34 is composed of two large plate blades.

  Further, the large plate blade 31, the small plate blade 32, the upper plate blade 33, and the lower plate blade 34 may be provided with reinforcing means for reinforcing at least the front edge portion in the rotational direction of each blade. 5 (a) and 5 (b) show a large plate blade 31 provided with a reinforcing plate 35 as a reinforcing means. As shown in FIGS. 5A and 5B, the reinforcing plate 35 is formed so as to cover one side surface (the right side surface in FIG. 5B), the front end surface, and one side surface of the lower surface of the large plate blade 31. ing. The reinforcing plate 35 can be provided at least at the front edge in the rotational direction of each blade.

  In addition, as shown in FIG. 2, in the vicinity of the inner peripheral surface of the inner wall of the mixer main body 2, the rotating shaft 20 rotates in the direction opposite to the rotational direction of the inner peripheral surface of the inner wall radially outward of the rotating shaft 20. A pair of scrapers 24 are provided as outer blade portions. More specifically, each scraper 24 is attached to the tip of a pair of arms 25 that are rotatably supported on the rotary shaft 20 by bearings 28 and the like, and the mixer main body portion is centered on the rotary shaft 20. In the vicinity of the inner peripheral surface of the inner wall 2, it can be rotated along the inner peripheral surface of the inner wall. Each arm 25 can be rotated by a motor 26 that is a drive source, and is connected to the motor 26 via a belt 27a, a pulley 27b, and the like. Further, the arm 25 can be bent at the bending portion 30 and the length of the tip side portion of the arm 25 can be adjusted with respect to the bending portion 30, and the position of the scraper 24 in the vertical direction within the mixer main body portion 2 can be adjusted. It can be adjusted.

  The rotation direction of the rotation shaft of the motor 22 is opposite to the rotation direction of the rotation shaft of the motor 26. That is, the scraper (outer blade portion) 24 is configured to rotate in the rotational direction of the rotating shaft 20 and the spiral blade 21 rotating together with the rotating shaft 20 (that is, the large plate blade 31), the small plate blade 32, the upper plate blade 33, and the lower plate blade 34. Rotates in the opposite direction. In addition, the rotational speed of the rotary shaft 20 on which a plurality of spiral blades and the like are arranged is faster than the rotational speed of the scraper 24, and the rotational speed of the rotary shaft 20 is about 80 to 250 revolutions per minute. The number of rotations of 24 is preferably about 60 rotations per minute.

  Next, the operation of the above embodiment will be described. As shown in FIG. 1, the mud contained in the mud tank 8 is conveyed by the pump 9 through the mud supply pipe 10 to the mud supply port 6, and the mixer body 2 through the mud supply port 6. Supplied in. Similarly, the muddy water accommodated in the muddy water tank 11 is conveyed to the muddy water supply port 7 through the muddy water supply pipe 13 by the pump 12, and is supplied into the mixer main body 2 through the muddy water supply port 7. At this time, the muddy water supplied to the muddy water supply port 6 and the muddy water supplied to the muddy water supply port 7 are dehydrated by the dehydrator 14. Accordingly, in the mixer main body 2, the mud dehydrated by the dewatering device 14 is supplied through the mud concentration supply port 6, and the muddy water dehydrated by the dewatering device 14 is supplied through the mud water supply port 7. Supplied.

  In addition, an appropriate amount of incineration ash 100 put into the hopper 4 is conveyed to the supply port 3 by the conveyor 5 and supplied into the mixer body 2 through the supply port 3. In addition, an appropriate amount of artificial zeolite as a solidifying agent is simultaneously supplied by an appropriate means. For example, when granulating only the mud concentration, the blending ratio (% by weight) can be set to 80% mud concentration, 15% incinerated ash, and 5% solidifying agent (artificial zeolite). Moreover, when granulating only the muddy water, the mixing ratio (% by weight) can be set to 60% muddy water (concentrated by dehydration), 15% incineration ash, and 25% solidifying agent (artificial zeolite). .

  As described above, in the mixer main body 2, mud or / and mud water dehydrated by the dehydrator 14, incinerated ash 100 as a stabilizer, and artificial zeolite as a solidifying agent are charged, and these are charged. In the mixer main body 2, the material is kneaded by the large plate blade 31, the small plate blade 32, the upper plate blade 33 and the lower plate blade 34 of the spiral blade 21, and the scraper 24 to be completely granulated. Specifically, these input materials have a shearing action and a diffusing action when the large plate blade 31, the small plate blade 32, the upper plate blade 33 and the lower plate blade 34 of the spiral blade 21 rotate together with the rotating shaft 20. At the same time, the scraper 24 that rotates in the direction opposite to the direction of rotation of the rotary shaft 20 is subjected to a diffusing action, and is thereby reliably granulated.

  The granulated granular material is discharged from the discharge port 18 in which the discharge door 29 is opened. The granulated material thus granulated can be backfilled in a state where the emission standard is satisfied because cement is not used as a solidifying agent.

FIG. 1 is an overall schematic diagram showing an embodiment of a mud concentration / muddy water granulating apparatus according to the present invention. FIG. 2 is a partial cross-sectional view showing the above embodiment. FIG. 3a is a plan view showing the blades and the rotation shaft of the mixer main body, FIG. 3b is a side view thereof, and FIG. 3c is a plan view showing the small plate blades. FIG. 4 is a side view showing a modification of the blade and the rotation shaft. FIG. 5A is a plan view showing a modification of the large plate blade, and FIG. 5B is a cross-sectional view thereof.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Muddy / Muddy water granulator 2 Mixer body 3 Supply port 4 Hopper 5 Conveyor 6 Mud supply port 7 Muddy water supply port 8 Muddy tank 9 Pump 10 Muddy water supply pipe 11 Muddy water tank 12 Pump 13 For muddy water Supply pipe 14 Dehydrating device 15 Mud concentration valve 16 Muddy water valve 18 Discharge port 19 Air vent 20 Rotating shaft 21 Spiral blade 22 Motor 23a Belt 23b Pulley 23c Pulley 24 Scraper 25 Arm 26 Motor 27a Belt 27b Pulley 28 Bearing 29 Discharge door 30 Bending part 31 Large plate blade 32 Small plate blade 33 Upper plate blade 34 Lower plate blade 35 Reinforcement plate 100 Incineration ash

Claims (20)

A mud / mud granulating device for granulating mud or / and mud water,
The mixer body,
A rotating shaft provided at the center of the mixer body,
A plurality of spiral blades configured by a plurality of large plate blades provided on the rotation shaft, spaced apart from each other along the axial direction of the rotation shaft, and symmetrical with respect to the axis of the rotation shaft;
A plurality of small plate blades provided on the rotating shaft and symmetrical with respect to the axis of the rotating shaft;
An outer blade provided near the inner peripheral surface of the inner wall of the mixer main body and rotating in the direction opposite to the rotational direction of the rotary shaft in the vicinity of the inner peripheral surface of the inner wall radially outward of the rotary shaft; ,
Each of the large plate blades and each of the small plate blades are aligned and arranged at substantially equal intervals in the rotation direction of the rotating shaft. 2. The muddy / muddy water granulating apparatus according to claim 1, wherein the plurality of spiral blades are spaced apart at a constant interval along an axial direction of the rotation shaft. 3. The muddy / muddy water granulating apparatus according to claim 1, wherein the large plate blades of the spiral blades are spaced apart from each other at a constant interval along an axial direction of the rotation shaft. . 4. Each of the plurality of small plate blades is provided between two spiral blades adjacent to each other in the axial direction of the rotation shaft. 5. Muddy / Muddy water granulator. 5. The mud concentration / muddy water granulation according to claim 4, wherein one of the plurality of small plate blades is provided above the spiral blade located at an uppermost portion on the rotation shaft. apparatus. An upper end plate blade that is line-symmetric with respect to the axis of the rotation shaft is provided at an upper position of the small plate blade provided above the spiral blade located on the uppermost portion on the rotation shaft. The mud concentration / muddy water granulating apparatus according to claim 5, wherein The mud according to any one of claims 4 to 6, wherein one of the plurality of small plate blades is provided below the spiral blade located at the lowest position on the rotation shaft. Concentrated muddy water granulator. A lower end plate blade that is symmetrical with respect to the axis of the rotation shaft is provided at a position below the small plate blade that is provided below the spiral blade located at the lowest position on the rotation shaft. The mud concentration / muddy water granulating apparatus according to claim 7. 9. The mud / muddy water according to claim 1, wherein the large plate blade is provided with a reinforcing means for reinforcing a leading edge portion in the rotation direction of the large plate blade. Granulating device. The muddy water / muddy water according to any one of claims 1 to 9, wherein the small plate blade is provided with a reinforcing means for reinforcing a leading edge portion in the rotation direction of the small plate blade. Granulating device. The mud / muddy water granulating apparatus according to claim 6, wherein the upper end plate blade is provided with a reinforcing means for reinforcing a front edge portion in the rotation direction of the upper end plate blade. 9. The mud / muddy water granulating apparatus according to claim 8, wherein the lower end plate blade is provided with reinforcing means for reinforcing the front edge portion in the rotation direction of the lower plate blade. The mud / muddy water granulating apparatus according to any one of claims 1 to 12, wherein the outer blade portion is a scraper. The mud concentration / muddy water granulating apparatus according to any one of claims 1 to 13, further comprising a dehydrating unit. The muddy / muddy water granulating apparatus according to any one of claims 1 to 14, wherein a rotation speed of a rotating shaft on which the plurality of spiral blades are arranged is faster than a rotation speed of the outer blade portion. . 16. The rotation speed of the rotating shaft is about 80 to 250 rotations per minute, and the rotation speed of the outer blade is about 60 rotations per minute. Mud concentration and muddy water granulating equipment. The mud / muddy water granulating apparatus granulates the mud or / and mud using a stabilizer, and the mud / muddy water granulating apparatus according to any one of claims 1 to 16. . 18. The mud / muddy water granulating apparatus according to claim 17, wherein the stabilizer is an appropriate amount of incineration ash. The mud / muddy water granulating apparatus according to claim 17 or 18, wherein an appropriate amount of a solidifying agent is used in addition to the stabilizer. 20. The mud / muddy water granulating apparatus according to claim 19, wherein the solidifying agent is artificial zeolite.

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