JP2005087896A - Sludge solidifying apparatus, sludge solidifying method, sludge treating apparatus, sludge supplying apparatus and sludge treating method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sludge solidifying apparatus, a sludge solidifying method, a sludge treating apparatus, a sludge supplying apparatus and a sludge treating method by which construction sludge containing coarse fragments can be treated. <P>SOLUTION: When the construction sludge containing coarse fragments is charged on a vibrating screening net 11, the fragments smaller than a mesh of the screening net 11 and the mud component fall and are deposited in a hopper 30. The fragments larger than the mesh of the screening net 11 are charged in a chute 22, crushed by a roll crusher 20 and deposited in the hopper 30. The small fragments and the mud component which are deposited in the hopper 30 and pass through the screening net 11 of a vibrating screen 10 and the fragments crushed by the roll crusher 20 are supplied quantitatively to a paddle mixer 50 by a screw conveyer 40. The construction sludge charged by the screw conveyer 40 is agitated/mixed with unslaked lime separately supplied quantitatively from a solidifying material charge port 53 and solidified and the solidified sludge is discharged to a pit 60 as improved soil. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sludge solidification technology for reforming and reusing construction sludge generated in construction work or the like.

  There is known a sludge treatment system for modifying and reusing construction sludge generated in construction work or the like. Since construction sludge generated in construction works contains large gravel, etc., there is a risk of damage to each conveying device and mixing device of the sludge treatment system. Therefore, prior to the reforming treatment, large gravel is removed from the construction sludge (see Patent Document 1).

JP 2002-336671 A

  However, in the conventional sludge treatment system, it is necessary to separately transport the gravel removed from the construction sludge and perform the crushing treatment. However, for that purpose, a separate treatment space, a treatment device, and a labor of treatment are required. .

(1) The sludge solidification processing apparatus according to the invention of claim 1 is a separation means for separating gravel from construction sludge, a crushing means for crushing the gravel separated by the separation means to generate a crushed material, and the gravel is separated. And a solidifying means for solidifying the construction sludge and crushed material from which the gravel conveyed by the conveying means is separated.
(2) The invention according to claim 2 is the sludge solidification processing apparatus according to claim 1, further comprising a hopper for storing the construction sludge from which the gravel is separated and the crushed material to supply the conveying means. And
(3) The invention according to claim 3 is the sludge solidification processing apparatus according to claim 2, wherein the separating means is a vibrating sieve disposed on the upper portion of the hopper, and the crushing means is disposed on the upper portion of the hopper. It is a roll crusher, and the hopper stores construction sludge from which gravel has been separated and crushed material.
(4) The invention according to claim 4 is the sludge solidification processing apparatus according to claim 2, wherein the hopper stores a first hopper for storing the construction sludge from which the gravel has been separated, and the crushed material. A second hopper that stores the hopper for feeding to the conveying means, the separating means is a vibrating screen disposed on the top of the first hopper, and the crushing means is on the top of the second hopper. It is a roll crusher arranged.
(5) According to a fifth aspect of the present invention, in the sludge solidification processing apparatus according to the second aspect, the separation means is a roll screen disposed on the upper portion of the hopper, and the crushing means is disposed on the upper portion of the hopper. The hopper is characterized by storing construction sludge from which gravel has been separated and crushed material.
(6) The invention according to claim 6 is the sludge solidification processing apparatus according to claim 2, wherein the hopper stores a first hopper for storing the construction sludge from which the gravel has been separated, and the crushed material. A second hopper that stores the hopper for feeding to the conveying means, the separating means is a roll screen disposed on the top of the first hopper, and the crushing means is on the top of the second hopper. It is a roll crusher arranged.
(7) The invention according to claim 7 is the sludge solidification processing apparatus according to any one of claims 1 to 6, wherein the separation means, the crushing means, the conveying means, and the solidification processing means can be self-propelled. It is installed on a simple vehicle.
(8) The sludge solidification treatment method according to the invention of claim 8 is the sludge solidification treatment method using the sludge solidification treatment device according to any one of claims 1 to 6, wherein at least the separating means, the crushing means, and the conveying means. Are integrated into the gantry and installed at the treatment site, the construction sludge is treated, and after the construction sludge treatment work is completed, the gantry with these means integrated is removed from the treatment site and mounted in the vehicle in that state. Transported to the next processing site.
(9) The sludge treatment apparatus according to the invention of claim 9 is separated by separation means for separating gravel from construction sludge, crushing means for crushing gravel separated by the separation means to generate crushed material, and separation means. It is provided with a support frame for supporting the separating means and the crushing means so that the gravel is put into the crushing means.
(10) In the sludge supply apparatus according to the invention of claim 10, separation means for separating gravel from construction sludge, crushing means for crushing gravel separated by the separation means to generate a crushed material, and gravel separated. It comprises transport means for transporting construction sludge and crushed material.
(11) The eleventh aspect of the present invention is the sludge supply apparatus according to the tenth aspect, further comprising a hopper for storing the construction sludge from which the gravel is separated and the crushed material to supply the conveying means. To do.
(12) The sludge treatment method according to the invention of claim 12 is the sludge treatment method using the sludge supply device according to claim 10 or claim 11, wherein construction sludge is introduced, and gravel larger than a predetermined size is given a predetermined amount. Separating from gravel and sludge below the size, crushing the gravel larger than the separated size, transporting the crushed gravel, gravel and sludge below the size to the solidification equipment and solidifying it. Features.

(1) According to the invention of claim 1 and claim 12, large gravel is separated from the construction sludge and crushed. Crushed gravel is solidified with construction sludge from which large gravel has been extracted. This eliminates the need to transport and process large gravel separately, eliminating the need for crushing equipment, transport equipment, installation locations, operating personnel, and the like. Therefore, the solidification processing cost can be greatly reduced.
(2) The sludge solidification processing method according to the invention of claim 8 is such that at least the detaching means, the crushing means, and the conveying means are integrated from the processing site, and mounted on the vehicle in that state and mounted on the next processing site. Transport to. Thereby, a sludge solidification processing apparatus can be easily conveyed and installed in other places.
(3) The sludge treatment apparatus according to the invention of claim 9 separates the gravel from the construction sludge by the separation means, and crushes the separated gravel by the crushing means. The separating means and the crushing means are supported by the support frame so that the separated gravel is put into the crushing means. Thereby, the construction sludge containing a big gravel can be reliably processed with a compact facility.
(4) The sludge supply apparatus according to the invention of claim 10 separates the gravel from the construction sludge by the separating means, and crushes the separated gravel by the separating means. The construction sludge from which the gravel has been separated and the crushed material are conveyed by a conveying means. Thereby, construction sludge containing large gravel can be prepared to a certain particle size or less and continuously supplied.

  With reference to FIGS. 1-3, 1st Embodiment of the sludge solidification processing apparatus of this invention is described. Fig.2 (a) is a figure which shows the AA cross section of FIG. 1 which looked at the sludge solidification processing apparatus from the front, and FIG.2 (b) is a figure which shows the BB cross section of FIG. The sludge solidification treatment apparatus 1 according to the first embodiment is an apparatus suitable for treatment of construction sludge having a high water content. The sludge solidification processing apparatus 1 includes a vibrating sieve 10, a roll crusher 20, a hopper 30, a screw conveyor 40, and a paddle mixer 50. Each device except for the paddle mixer 50 is integrally installed on the gantry 60.

  The vibrating screen 10 includes a screen 11 for separating gravel, a frame 12 for holding the screen 11, an eccentric pulley 13 for exciting the screen 11 together with the frame 12, and a motor for rotating the eccentric pulley 13. 14. The mesh opening of the sieve screen 11 is a necessary and sufficient opening diameter for separating large gravel so as not to hinder the conveyance and processing in the screw conveyor 40 and the paddle mixer 50. The frame 12 of the vibration sieve 10 is supported on the upper part of the gantry 60 via a spring 61. The eccentric pulley 13 is pivotally supported by the frame body 12. The motor 14 is fixed to the upper part of the gantry 60.

  The surface of the sieve screen 11 of the vibration sieve 10 is inclined so as to become lower toward the roll crusher 20. Note that this inclination is not essential. Since the screen 11 is vibrated so that the separated gravel is supplied to the roll crusher 20 by the rotation of the eccentric pulley 13, the surface of the screen 11 may be horizontal and increases toward the roll crusher 20. It may be inclined to be.

  As shown in FIG. 3, when construction sludge containing gravel is supplied onto the sieve mesh 11 of the vibrating sieve 10, gravel smaller than the sieve mesh 11 (hereinafter referred to as gravel) is caused by the vibration of the sieve mesh 11. RS) and mud (hereinafter referred to as mud M) fall under the screen 11. Gravel larger than the mesh of the sieve mesh 11 (hereinafter referred to as gravel RL) is conveyed toward the roll crusher 20 on the sieve mesh 11 by vibration of the sieve mesh 11.

  The roll crusher 20 is a crusher that crushes gravel by rotating two rolls 21 having a plurality of protrusions 21a on the surface, as shown in FIG. The gravel RL separated by the vibrating sieve 10 is guided to the chute 22 and supplied to the roll crusher 20. In the roll crusher 20, the supplied gravel RL is crushed so as not to hinder the conveyance and processing in the screw conveyor 40 and the paddle mixer 50.

  The hopper 30 is disposed immediately above the screw conveyor 40 and is connected to the upstream side of the casing 41 of the screw conveyor 40. The small gravel RS and mud M that have passed through the sieve screen 11 of the vibration sieve 10 and the gravel separated by the vibration sieve 10 and crushed by the roll crusher 20 (hereinafter referred to as gravel RSc) are temporarily stored in the hopper 30. And is supplied to the screw conveyor 40.

  The screw conveyor 40 is a quantitative supply device that supplies a fixed amount of construction sludge stored in the hopper 30 to the paddle mixer 50 by a single screw 43 driven by a motor 42. The upstream side of the casing 41 is connected to the hopper 30 as described above. A discharge port 44 provided on the downstream side of the casing 41 is connected to a raw material input port 52 of a paddle mixer 50 described later. The screw conveyor 40 adjusts the amount of construction sludge supplied to the paddle mixer 50 to stabilize the solidification process. The supply amount of construction sludge is adjusted by controlling the rotational speed of the motor 42 via an inverter from a control panel (not shown).

  The paddle mixer 50 is a two-shaft paddle type mixer that has two shafts 51 and stirs, mixes and transfers the construction sludge and the solidified material by paddles attached to the shafts 51. The construction sludge input from the raw material input port 52 by the screw conveyor 40 is agitated and mixed with quick lime separately supplied separately from the solidification material input port 53 and discharged from the discharge port 54. The amount of the solidified material input is appropriately adjusted in consideration of properties such as the amount supplied to the paddle mixer 50 by the screw conveyor 40 and the moisture content of construction sludge.

  The construction sludge mixed with quick lime in the paddle mixer 50 absorbs the contained moisture in the quick lime, and part of the contained moisture evaporates due to the reaction heat between the quick lime and the moisture, so that the moisture content decreases. In addition, the construction sludge is subjected to a polyazone reaction and a carbonation reaction, and a coagulation effect due to calcium ions in quicklime. The construction sludge is solidified in this way to be improved soil.

  The construction sludge solidified by the paddle mixer 50 is discharged from the discharge port 54 to the pit 60.

  In the sludge solidification processing apparatus described above, construction sludge containing large gravel is solidified as follows to obtain improved soil. First, construction sludge containing gravel stored in a sludge storage tank (not shown) is put on the sieve screen 11 of the vibrating sieve 10 with a heavy machine 8 or the like. Due to the vibrating screen 11, gravel RS and mud M smaller than the opening of the screen 11 fall below the screen 11 and accumulate on the hopper 30. Gravel RL larger than the opening of the sieve mesh 11 is put into the chute 22 of the roll crusher 20.

  The gravel RL supplied to the roll crusher 20 is crushed and deposited on the hopper 30. The small gravel RS and the mud M that have passed through the sieve screen 11 of the vibrating screen 10 accumulated in the hopper 30 and the gravel RSc crushed by the roll crusher 20 are quantitatively supplied to the paddle mixer 50 by the screw conveyor 40. The paddle mixer 50 stirs and mixes the construction sludge supplied by the screw conveyor 40 and quick lime supplied separately from the solidification material inlet 53, solidifies the construction sludge, and discharges it to the pit 60 as improved soil.

The sludge solidification treatment apparatus of the first embodiment described above has the following operational effects.
(1) Large gravel is separated from the construction sludge by the vibrating sieve 10 and crushed by the roll crusher 20. The gravel crushed material is transported to the paddle mixer 50 together with the construction sludge that has passed through the sieve screen 11 of the vibration sieve 10 and solidified. Since there is no need to separately transport and process the large gravel separated by the vibrating sieve 10, no crushing equipment, transport equipment, installation location, operating personnel, etc. are required. In addition, it is possible to reliably treat construction sludge containing large gravel with compact equipment. Therefore, the solidification processing cost can be greatly reduced. Furthermore, since the construction sludge can be continuously solidified, the treatment capacity is high.

(2) Large gravel is separated from the construction sludge with the vibrating sieve 10. Thereby, damage of each downstream device and stop of the whole processing apparatus due to excessive load can be prevented, so that construction sludge can be solidified reliably.
(3) The vibration sieve 10 is used for separating large gravel. The vibration of the sieve mesh 11 prevents clogging of the sieve mesh 11 and can convey large gravel toward the roll crusher 20. Thereby, a big gravel can be isolate | separated reliably.
(4) The roll crusher 20 is used for crushing large gravel. This makes it possible to reliably process gravel with a compact device.

(5) Gravel fragments and construction sludge that has passed through the sieve screen 11 of the vibrating sieve 10 are conveyed to the paddle mixer 50 by the screw conveyor 40. Thereby, the supply amount to the paddle mixer 50 can be easily adjusted, and a fixed amount can be reliably supplied. Further, since the screw conveyor 40 has a sealed structure integrated with the upper hopper 30, there is no water leakage and no falling of minerals, no surrounding cleaning work is required, personnel costs can be reduced, and the surrounding environment is adversely affected. Does not reach.
(6) The paddle mixer 50 is used for mixing the construction sludge and the solidified material. Thereby, while being able to mix reliably, the transfer of improved soil also becomes easy. Since there is no need to prepare a separate transfer device, the cost can be reduced.

――― Second embodiment ―――
4 and 5, a second embodiment of the sludge solidification processing apparatus of the present invention will be described. Fig.5 (a) is a figure which shows CC cross section of FIG. 4 which looked at the sludge solidification processing apparatus from the front, and FIG.5 (b) is a figure which shows DD cross section of FIG. The sludge solidification treatment apparatus 2 of the second embodiment is an apparatus suitable for the treatment of construction sludge with a low water content. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, and different points will be mainly described. As shown in FIG. 4, the sludge solidification processing apparatus 2 includes a vibrating sieve 10, a roll crusher 20, a hopper 123, a hopper 130, a belt conveyor 140, and a paddle mixer 50. Each device except for the paddle mixer 50 is integrally installed on the gantry 160.

  The differences from the sludge solidification processing apparatus 1 of the first embodiment are mainly a hopper 123, a hopper 130, and a belt conveyor 140. The hopper 123 and the hopper 130 are separately disposed on the upper portion of the belt conveyor 140. Small gravel RS and mud M that have passed through the sieve screen 11 of the vibration sieve 10 are temporarily stored in the hopper 130 and supplied to the belt 141 of the belt conveyor 140.

  The gravel RL separated by the vibrating sieve 10 is guided to the chute 122 and supplied to the roll crusher 20. The gravel RSc crushed by the roll crusher 20 is guided by the hopper 123 and supplied onto the belt 141 of the belt conveyor 140. That is, unlike the sludge solidification processing apparatus 1 of the first embodiment, the gravel RSc crushed by the roll crusher 20 is not put into the hopper 130.

  The belt conveyor 140 conveys the gravel RSc crushed by the roll crusher 20 and supplied from the hopper 123, and the small gravel RS and mud M temporarily stored in the hopper 130 by the belt 141, and a paddle mixer. 50 raw material inlets 152 are charged. The belt conveyor 140 stabilizes the solidification process by adjusting the amount of construction sludge supplied to the paddle mixer 50. The supply amount of construction sludge is adjusted by controlling the rotation speed of a motor (not shown) that drives the outlet side roller 142 via an inverter from a control panel (not shown).

  The raw material inlet 152 of the paddle mixer 50 is formed so as to surround the outlet roller 142 of the belt conveyor 140.

In the sludge solidification processing apparatus of 2nd Embodiment mentioned above, in addition to the effect of 1st Embodiment, there exists the following effect.
(1) Gravel fragments and construction sludge that has passed through the sieve screen 11 of the vibrating sieve 10 are conveyed to the paddle mixer 50 by the belt conveyor 140. As a result, the supply amount can be easily adjusted, and quantitative supply can be performed with an inexpensive device. In addition, there are few wear parts and maintenance is easy.

――― Third embodiment ―――
With reference to FIGS. 6-8, 3rd Embodiment of the sludge solidification processing apparatus of this invention is described. Fig.7 (a) is a figure which shows the EE cross section of FIG. 6 which looked at the sludge solidification processing apparatus from the front, and FIG.7 (b) is a figure which shows the FF cross section of FIG. The sludge solidification treatment apparatus 3 according to the third embodiment is an apparatus suitable for treatment of construction sludge having a high water content. In the following description, the same components as those in the first and second embodiments are denoted by the same reference numerals, and different points will be mainly described. As shown in FIG. 6, the sludge solidification processing apparatus 3 includes a roll screen 210, a roll crusher 20, a hopper 230, a screw conveyor 40, and a paddle mixer 50. Each device except for the paddle mixer 50 is integrally installed on the gantry 260.

  As shown well in FIGS. 8A and 8B, the roll screen 210 includes a plurality of shafts 211 and 212 provided with a plurality of rollers 211a and 212a, and a gap between adjacent rollers 211a and 212a. A sieve having O as an opening. The shaft 211 is provided with a roller 211a, and the shaft 212 is provided with a roller 212a at a constant pitch A. Further, the roller 211a of the shaft 211 and the roller 212a of the shaft 212 are provided so as to be shifted from each other by half of the pitch A described above.

  Each shaft 211, 212 is supported by a bearing 231 provided at the upper end of the hopper 230. Sprockets 213 are provided near both ends of each shaft 211, 212, and a chain 215 is wound around each sprocket 213. Both ends of one shaft 211 are connected to a drive motor 214. When the drive motor 214 is driven, the rotation is transmitted to each sprocket 213 by the chain 215, and all the shafts 211 and 212 rotate in the same direction. One drive motor 214 may be provided, or three or more drive motors 214 may be included, including installation on other shafts 211 and 212. That is, the number corresponding to the load may be used. The drive motor 214 may be provided on any of the shafts 211 and 212.

  When construction sludge containing gravel is supplied to the upper surface of the roll screen 210, gravel RS and mud M that are smaller than the gap O between the adjacent rollers 211a and 212a fall under the roll screen 210. Gravel RL larger than the gap O is conveyed to the roll crusher 20 by the rotating rollers 211a and 212a. The gap O is determined by the distance H between the side surfaces of the adjacent rollers 211a and 212a and the distance B of the gap between the shafts 211 and 212.

  The upper surface of the roll screen 210 is inclined so that the roll crusher 20 side is lowered. Note that this inclination is not essential. As described above, since the separated gravel RL is conveyed toward the roll crusher 20 by the rotating rollers 211a and 212a, the upper surface of the roll screen 210 may be horizontal and inclined so that the roll crusher 20 side becomes higher. You may do it.

  The gravel RL separated by the roll screen 210 is guided to the chute 222 and supplied to the roll crusher 20. Gravel RSc crushed by the roll crusher 20 is temporarily stored in the hopper 230.

  The hopper 230 is disposed on the upper portion of the screw conveyor 40 and is connected to the upstream side of the casing 41 of the screw conveyor 40. The small gravel RS and the mud M that have passed through the gap O of the roll screen 210 and the gravel RSc separated by the roll screen 210 and crushed by the roll crusher 20 are temporarily stored in the hopper 230 and transferred to the screw conveyor 40. Supplied.

In the sludge solidification processing apparatus of the third embodiment described above, in addition to the functions and effects of the first and second embodiments, the following functions and effects are exhibited.
(1) A roll screen 210 is used to separate large gravel. Thereby, since a big gravel can be reliably isolate | separated with a compact apparatus, the whole sludge solidification processing apparatus can be reduced in size.

――― Fourth embodiment ―――
A fourth embodiment of the sludge solidification processing apparatus of the present invention will be described with reference to FIGS. Fig.10 (a) is a figure which shows the GG cross section of FIG. 9 which looked at the sludge solidification processing apparatus from the front, and FIG.10 (b) is a figure which shows the HH cross section of FIG. The sludge solidification treatment device 4 of the fourth embodiment is a device suitable for the treatment of construction sludge with a low water content. In the following description, the same components as those in the first to third embodiments are denoted by the same reference numerals, and different points will be mainly described. As shown in FIG. 9, the sludge solidification processing apparatus 4 includes a roll screen 210, a roll crusher 20, a hopper 323, a hopper 330, a belt conveyor 140, and a paddle mixer 50. Each device except the paddle mixer 50 is integrally installed on the gantry 360.

  The gravel RL separated by the roll screen 210 is guided to the chute 322 and supplied to the roll crusher 20. Gravel RSc crushed by the roll crusher 20 is guided by the hopper 323 and supplied onto the belt 141 of the belt conveyor 140. That is, similar to the sludge solidification processing apparatus 2 of the second embodiment, the hopper 323 and the hopper 330 are separately disposed on the upper part of the belt conveyor 140, so that the gravel crushed by the roll crusher 20 is The hopper 330 is not charged.

In the sludge solidification processing apparatus of 4th Embodiment mentioned above, in addition to the effect of 1st-3rd embodiment, there exists the following effect.
(1) A large gravel is separated and crushed by the roll screen 210 and the roll crusher 20, and the crushed crushed material and construction sludge that has passed through the gap O between the roll screen 210 are conveyed to the paddle mixer 50 by the belt conveyor 140. ing. Thereby, a compact and inexpensive sludge solidification processing apparatus can be realized.

――― Modifications ――――
(1) In the above description, the sludge solidification treatment apparatus is installed on the foundation as illustrated in FIGS. 2, 4, 6, 9 and the like, but the present invention is not limited to this. For example, after a construction sludge treatment operation is completed, a platform in which a vibration sieve, a roll crusher, and a screw conveyor are integrated can be removed from the treatment site, mounted in a vehicle in that state, and transported to the next treatment site. Thereby, a sludge solidification processing apparatus can be easily installed in the generation | occurrence | production place of construction sludge. In addition, by providing the sludge solidification processing device according to the present invention on a truck or a crawler type traveling device, it becomes possible to run on its own. Thereby, it can move easily within the generation site of construction sludge.

(2) Although the construction sludge solidified by the paddle mixer 50 is stored in the pit 60 in the above description, the present invention is not limited to this. A transport machine such as a belt conveyor may be separately installed below the discharge port 54 of the paddle mixer 50, and loaded on a truck or transported to another pit.

(3) In the above description, a vibration sieve or a roll screen is used for separating large gravel contained in construction sludge, but the present invention is not limited to this. For example, in addition to these sieves, other sieves such as finger screens that can separate large gravel from construction sludge can be used.
(4) In the above description, a roll crusher is used for crushing large gravel separated by a vibrating sieve or the like, but the present invention is not limited to this. For example, any crusher capable of crushing gravel so that there is no trouble such as biting in downstream equipment after the crusher, such as a jaw crusher or a hammer crusher, may be used.

(5) In the above description, the hopper is provided immediately before the screw conveyor or the belt conveyor, but the present invention is not limited to this. A chute having no storage function may be used instead of the hopper.
(6) In the above description, a screw conveyor or a belt conveyor is used to supply construction sludge to the paddle mixer, but the present invention is not limited to this. For example, when the overall height of the sludge solidification treatment apparatus may be high, the hopper 30 may be formed in a vertically long shape and a rotary valve may be provided in the lower part thereof. Thus, what is necessary is just an apparatus with fixed supply capability.

(7) In the above description, the paddle mixer is used for mixing the construction sludge and the solidified material, but the present invention is not limited to this. For example, another type of mixer such as a rotary drum type mixer may be used. In addition, the transfer function of a to-be-mixed material is not essential in a mixer. Other transfer (conveyance) devices may be used in combination, and by discharging directly under the mixer, storage in a pit or loading on a truck is possible.

(8) In the above description, the paddle mixer that mixes the construction sludge and the solidified material can be continuously processed, but the present invention is not limited to this. For example, a batch type mixer can be used. In this case, the capacity of the hopper 30 may be increased so that the construction sludge stored in the hopper 30 does not overflow while waiting to be charged into the batch type mixer.

(9) In the above description, the sludge solidification processing apparatus has been described as an apparatus for reforming construction sludge containing large gravel into improved soil, but the present invention is not limited to this. For example, the vibratory sieve 10 or roll screen 210 arranged as described above and the roll crusher 20 can be used as a soil treatment apparatus that separates and crushes large gravel from construction sludge containing large gravel. . Further, construction sludge containing large gravel is prepared and supplied to a certain particle size or less by the vibrating sieve 10 or the roll screen 210, the roll crusher 20, and the screw conveyor 40 or the belt conveyor 140 arranged as described above. It can also be used as an earth and sand supply device.
(10) Each embodiment and modification described above may be combined.

  In the above-described embodiment and its modifications, for example, the crushing means corresponds to the roll crusher 20 and the solidification processing means corresponds to the paddle mixer 50, respectively. The separating means corresponds to the vibrating sieve 10 or the roll screen 210, and the conveying means corresponds to the screw conveyor 40 or the belt conveyor 140, respectively. The first hopper corresponds to the hopper 130 or hopper 330, and the second hopper corresponds to the hopper 123 or hopper 323. Furthermore, as long as the characteristic functions of the present invention are not impaired, the present invention is not limited to the device configuration in the above-described embodiment.

It is a figure which shows the structure of 1st Embodiment of the sludge solidification processing apparatus by this invention. 2A is a cross-sectional view of FIG. 1, and FIG. 1A is a cross-sectional view taken along line AA in FIG. 1, and FIG. It is a figure which shows the operating condition of the sludge solidification processing apparatus 1 of FIG. It is a figure which shows the structure of 2nd Embodiment of the sludge solidification processing apparatus by this invention. It is sectional drawing of FIG. 4, (a) shows CC cross section of FIG. 4, (b) shows DD cross section of FIG. It is a figure which shows the structure of 3rd Embodiment of the sludge solidification processing apparatus by this invention. It is sectional drawing of FIG. 6, (a) shows the EE cross section of FIG. 6, (b) shows the FF cross section of FIG. It is a figure which shows the structure of the roll screen 20 of the sludge solidification processing apparatus 3 of FIG. 6, (a) is a top view, (b) is VIII-VIII sectional drawing of (a). It is a figure which shows the structure of 4th Embodiment of the sludge solidification processing apparatus by this invention. 10A is a cross-sectional view of FIG. 9, and FIG. 9A is a cross-sectional view taken along the line GG of FIG. 9, and FIG.

Explanation of symbols

1-4 Sludge solidification processing apparatus 10 Vibrating sieve 11 Sieve net 20 Roll crusher 21 Roll 22, 122, 222, 322 Chute 30, 123, 130, 230, 323, 330 Hopper 40 Screw conveyor 50 Paddle mixer 60, 160, 260, 360 Base 61 Spring 140 Belt conveyor 210 Roll screen

Claims (12)

Separation means for separating gravel from construction sludge;
Crushing means for crushing the gravel separated by the separation means to generate a crushed material,
Conveying means for conveying the construction sludge from which the gravel has been separated and the crushed material,
A sludge solidification treatment apparatus comprising: construction sludge from which the gravel conveyed by the conveyance means is separated; and a solidification treatment means for solidifying the crushed material. In the sludge solidification processing apparatus according to claim 1,
A sludge solidification processing apparatus, further comprising a hopper for storing the construction sludge from which the gravel has been separated and the crushed material to supply the conveying means. In the sludge solidification processing apparatus according to claim 2,
The separating means is a vibrating screen disposed on the top of the hopper;
The crushing means is a roll crusher disposed on the top of the hopper,
The said hopper stores the construction sludge from which the said gravel was isolate | separated, and the said crushed material, The sludge solidification processing apparatus characterized by the above-mentioned. In the sludge solidification processing apparatus according to claim 2,
The hopper has a first hopper for storing construction sludge from which the gravel has been separated to supply the conveying means, and a second hopper for storing the crushed material for supplying to the conveying means. And
The separation means is a vibrating screen disposed on an upper portion of the first hopper;
The said crushing means is the roll crusher arrange | positioned at the upper part of the said 2nd hopper, The sludge solidification processing apparatus characterized by the above-mentioned. In the sludge solidification processing apparatus according to claim 2,
The separating means is a roll screen disposed on an upper portion of the hopper;
The crushing means is a roll crusher disposed on the top of the hopper,
The said hopper stores the construction sludge from which the said gravel was isolate | separated, and the said crushed material, The sludge solidification processing apparatus characterized by the above-mentioned. In the sludge solidification processing apparatus according to claim 2,
The hopper has a first hopper for storing construction sludge from which the gravel has been separated to supply the conveying means, and a second hopper for storing the crushed material for supplying to the conveying means. And
The separating means is a roll screen disposed on an upper portion of the first hopper;
The said crushing means is the roll crusher arrange | positioned at the upper part of the said 2nd hopper, The sludge solidification processing apparatus characterized by the above-mentioned. In the sludge solidification processing apparatus according to any one of claims 1 to 6,
The separation means, the crushing means, the transport means, and the solidification processing means are installed on a vehicle capable of self-propelling, and the sludge solidification processing apparatus. In the sludge solidification processing method using the sludge solidification processing apparatus according to any one of claims 1 to 6,
At least the separation means, the crushing means, and the transport means are integrated into a gantry and installed at a processing site,
Processing construction sludge,
After the construction sludge treatment work is finished, remove the stand that integrates each means from the treatment site,
The sludge solidification processing method characterized by mounting in a vehicle in that state and transporting it to the next processing site. Separation means for separating gravel from construction sludge;
Crushing means for crushing the gravel separated by the separation means to generate a crushed material,
A sludge treatment apparatus, comprising: a support frame that supports the separation means and the crushing means so that the gravel separated by the separation means is input to the crushing means. Separation means for separating gravel from construction sludge;
Crushing means for crushing the gravel separated by the separation means to generate a crushed material,
A sludge supply apparatus comprising: a construction means for transporting the construction sludge from which the gravel is separated and the crushed material. In the sludge supply apparatus according to claim 10,
A sludge supply apparatus, further comprising a hopper for storing the construction sludge from which the gravel has been separated and the crushed material to supply the transport means. In the sludge treatment method using the sludge supply device according to claim 10 or 11,
Put construction sludge,
Separating gravel larger than a predetermined size from gravel and sludge below a predetermined size,
Crushing gravel larger than the predetermined size separated,
A sludge treatment method in which the crushed gravel, gravel and sludge having a predetermined size or less are conveyed to a solidification apparatus and solidified.

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