KR100329440B1 - Disposal method of mixing refuse-material including cement ingredient or clay ingredient and sand and gravel and disposal apparatus used in this - Google Patents

Abstract

PURPOSE: Provided is a method for treating mixed waste materials containing cement or clay, sand and gravel, by which it is possible to recycle the sand and gravel since they do not have cement attached on their surfaces and an apparatus therefor. CONSTITUTION: The method includes the steps of introducing mixed waste materials containing cement or clay, sand and gravel along with water into a washing vessel of a rotating drum type; performing prewashing by removing the cement or clay attached onto the sand and gravel through rubbing and collision of each other by rotation of the washing vessel while supplying water and discharging the cement or clay by water drainage; separating the sand and gravel, followed by sieving to obtain clean sand and gravel.

Description

Disposal method of mixing refuse-material including cement ingredient or clay ingredient and sand and gravel and disposal apparatus used in this}

TECHNICAL FIELD This invention relates to the processing method of the mixed waste material containing a cement component or a mud component, sand, and gravel, and the processing apparatus used for this.

In a conventional raw concrete factory or the like, the raw concrete remaining in the mixer of the ready-mixed concrete was washed with washing water and removed.

In constructing the concrete building, the raw concrete is returned to the construction site from the raw concrete factory to ready-mixed concrete, and the construction is carried out by discharging the raw concrete in the mixer. At this time, some of the concrete is left in the mixer.

Therefore, it was necessary to remove the remaining raw concrete (remaining raw concrete or remaining raw concrete) from the ready-mixed concrete returned to the ready-mixed concrete factory, and to clean the inside of the ready-mixed concrete. The mixer was injected to rotate the mixer to wash away the remaining raw concrete (remaining raw concrete).

By the way, in the waste liquid of the fresh concrete extracted from the ready-mixed concrete in this way, a large amount of cement components, sand, and gravel were contained, and the conventional facility as shown in FIG. 5 was used for the process.

In Fig. 5, 200 is a hopper receiving raw concrete waste from ready-mixed concrete, in which the waste liquid containing the remaining raw concrete (excess raw concrete) received is collected in raw water pit 202 and pumped to the pump 204. Is sent to a classification 208 via hopper 206.

The liquid-liquid separation is performed by the classifier 208, and the sand 210 and the gravel 212 in the solid content are classified and classified by screening.

At this time, the solid-liquid separated liquid is temporarily stored in the adjustment tank 214, and is also sent to the concentration tank 218 via the cyclone 216 by the pump 204.

Here, the liquid in the adjusting tank 214 is sent to the concentrating tank 218 via the cyclone 216, since some of the liquid in the adjusting tank 214 may contain some amount of sand. To the concentrate tank 218 which is substantially free of sand and gravel.

In the concentration tank 218, flocculation treatment is carried out by addition of a flocculant, which is then sent to the dehydrator 220, where the dehydration treatment is carried out, and the cement component consisting of fine particles and the trace mud component are separated and extracted as the cake 222.

The waste liquid after they are removed is sent to the supernatant tank 224 and stored there.

The supernatant in the supernatant tank 224 is returned to the hopper 200 and reused for the treatment of the raw concrete waste liquid.

6 shows a specific structure of the classifier.

In Fig. 6, 226 is a cylindrical rotary body, which is rotatably supported by the apparatus frame 230 in the cylindrical portion 228 of the small diameters at both ends, and is driven while the lower portion is partially deposited in the water tank 232. It is driven to rotate by the motor 231.

On the outer surface side of the rotating body 226, a spiral protrusion 234 for collecting sand of the bottom of the water tank 232 to the axially intermediate position of the rotating body 226, and on the inner circumferential side, gravel remaining in the inside of the rotating body 226 is one end in the axial direction (Fig. 6). The spiral protrusion 236 for gravel stones to send to the right end part of (A) is provided in the state which rotates integrally with the rotating body 226. As shown in FIG.

In addition, a mesh-type sand bucket 238 that rotates integrally with the rotating body 226 on the circumferential side of the rotating body 226 is to lift sand sent by the spiral protrusion 234 from its axially intermediate position and drop it on the sand chute 237. It is installed.

In addition, the inside of the rotating body 226 and one end in the axial direction (the right end in FIG. 6 (A)) dropped from the collecting plate 240 at the rising position of the collecting plate 240 and the collecting plate 240 for picking up the gravel sent to the spiral protrusion 236. The guide plate 242 for guiding the gravel to the outlet 246 and discharging the same is installed in a state of integral rotation with the rotor 226.

244 is also an eddy plate.

In the classifier 208, the raw concrete waste liquid from the raw water pit 202, that is, the raw concrete waste liquid containing a large amount of cement, sand and gravel, and a small amount of mud is introduced into the rotor 226 through the input pipe 248.

The sand, cement and trace mud in the injected waste liquid exit the body of the rotating body 226 to the water tank 232 side, and the sand component is gravity settled at the bottom in the water tank 232.

The gravity-set sand component at the bottom is sent toward the axial middle part of the rotating body 226 by the spiral protrusion 234, and is then lifted up by the sand bucket 238, and is discharged to the sand chute 237 to the outside.

On the other hand, the gravel component remaining in the inside of the rotating body 226 is sent to the axial end by the conveying action of the spiral protrusion 236, and is picked up by the collecting plate 240 thereafter, and then vortexed by the vortex preventing plate 244 under the action of the guide plate 242. After is prevented, it is guided to the exit 246 and discharged to the outside.

Then, the liquid in the water tank 232 from which the sand and gravel components are removed is sent to the dehydrator 220 through the adjustment tank 214 and the concentration tank 218, where the cement component and the micro mud component composed of fine particles suspended in the liquid are dehydrated. The cake is separated into 222 and extracted.

However, in this classifier 208, since the cement components adhered to the sand and gravel are discharged to the outside without being sufficiently removed, they are deposited in the mountain shape shown in FIG. There was a problem that the acid of 212 lumped and hardened.

The double grain can be broken down by applying some force on the large gravel 212, but it becomes a solid mass on the sand 210. Therefore, there was a problem that it was difficult to reuse the sand 210 and the gravel 212 extracted in this way on the actual phase.

In addition, the sand remains on the inside of the rotating body 226 without passing through the body of the rotating body 226 with the sand attached to the gravel by the cement component attached to the surface of the gravel or the surface of the sand. There was also a problem that is discharged to.

The present invention has been made to solve the above problems, and an object of the present invention is a method and apparatus for fractionating and extracting sand and gravel in a fresh concrete recovery waste liquid containing a large amount of cement components in a clean state without cement components attached thereto. To provide.

Claim 1 relates to a method for treating a mixed waste material, wherein a mixed waste material comprising cement or mud and sand and gravel is housed together with water in a rotary drum type washing tank, and the mixed waste material is supplied to the washing tank under water supply. A pre-cleaning treatment is performed in which the cement or mud component adhered to the sand and gravel surface by rubbing each other by the rotation of the washing tank is removed and removed together with the drainage. Classify by and fractionate and extract clean sand and gravel.

In addition, claim 2 relates to a treatment apparatus for use in the above method, comprising: (a) a non-mesh type, independent container-type rotating drum washing tank in a treatment apparatus for a mixed waste material including cement or mud components and sand and gravel; By rotating the cleaning tank under water in a state in which the mixed waste material and water are accommodated in the cleaning tank, the cement or mud components adhered to the sand and gravel surfaces of the mixed waste material are rubbed off by friction between particles. And (b) a fractionation extractor for classifying and extracting the sand and the gravel by sifting the sand and the gravel after the pre-cleaning by the chartered government, and (c) the sand in the cleaning tank. And extracting the gravel by solid-liquid separation and then passing the gravel to the fractional extraction unit.

Next, in Claim 2, the spiral projection according to claim 2 is provided with a spiral projection which is sent from one end side to the other end side in parallel with the axis of the drum while rubbing the sand and gravel along the inner surface of the rotary drum type washing tank. The said sorghum part is provided in the transfer destination of sand and gravel.

The said water-receiving part is provided in the rotational state integrally with the said washing tank at the predetermined pitch in the inner surface of the said washing tank, and in the circumferential direction at the edge part of the said drum type washing tank. And a plurality of collecting plates for picking up and lifting the sand and gravel of the bottom of the cleaning tank as the cleaning tank rotates, and being installed in a rotational state integrally with the cleaning tank on the central side of the cleaning tank, And a guide plate for guiding the sand and gravel dropped from the collection plate to the fractionation extraction unit.

5. The mesh extractor of claim 5, wherein the fractional extracting unit has a mesh-like rotating body that drops the sand into the outside of the sand and the gravel and the gravel, and leaves the gravel therein. At the same time, the rotating body is connected to the drum type washing tank, characterized in that the rotating integrally.

As described above, in the treatment method of claim 1, first, the mixed waste material is first accommodated in a rotary drum type washing tank, the mixed waste materials are rubbed with each other by rotation of the washing tank, and the cement or mud components attached to the sand and gravel surfaces are peeled off. The washing process is carried out before removal together with the drainage, after which the sand and gravel are separated by solid-liquid extraction and classified by sieve to classify and extract clean sand and gravel. According to this method, sand and gravel are cemented to the surface. Can be extracted in a clean state with no sediment attached. Therefore, even if these sands and gravel are left in a sedimentary state, they are not hardened and no cement is attached to the surface. It can be effectively reused again as a material for concrete or other materials, and economical That can be improved.

In addition, the present invention can be applied as a method of separating and extracting sand and gravel from the excavated soil in tunnel construction, etc., thereby reducing the amount of waste treated in the past while paying the cost for disposal. It is possible to extract the sand and gravel which are available from them.

In the construction of tunnels and the like, excavation is performed by injecting cement so that the soil does not collapse, and thus, the excavated soil may contain a cement component. In addition, a large amount of mud component is contained in the soil. According to the present invention, it is possible to fractionate and extract clean sand and gravel from them.

In addition, the present invention is also applicable to the selective extraction of sand and gravel in the soil containing a large amount of mud components that do not contain such a cement component.

Claim 2 relates to a treatment apparatus, which has a non-mesh type, independent container-type rotary drum washing tank, and a cement component attached to the surface of sand and gravel by friction between particles in the washing tank. Alternatively, the solids are separated from the washing portion, the fractionation extracting portion which separately classifies and extracts previously washed sand and gravel, and the sand and gravel in the washing tank before the mud component is peeled off and removed together with the drainage. It extracts, and includes a sorghum part to and from the fractionation extracting part.

Here, the inside of the washing tank may be continuously supplied with the washing water, and at the same time, the liquid containing the cement component and the mud component may be continuously flowed out from the washing tank by overflow.

According to the apparatus of claim 2, the method of claim 1 can be preferably performed.

Moreover, this apparatus is provided with the water-receiving part which solid-separates the sand and gravel in a washing tank, and receives it from a prewashing part to a fractionation extraction part, The prewashing process by a prewashing part, and the fractional extraction of sand and gravel by a fractional extraction part are carried out. Can be performed in a continuous process.

The processing apparatus of claim 3 is provided with a spiral projection which sends sand and gravel from the axial end of the drum type cleaning tank to the other end while rubbing sand and gravel into each other in the cleaning tank of the pre-washing section. In the transfer destination, a sorghum part for delivering them to the fractionation extracting part is provided. According to this apparatus, the helical protrusion part effectively rubs sand and gravel together in the cleaning tank, so that the cement or mud ingredient adhered to the surface is better. At the same time, the sand and gravel pre-cleaned by the conveying action of the helical protrusion and the receiving and receiving part can be smoothly delivered to the fractional extraction part, and the process from the pre-cleaning to the fractional extraction of the sand and gravel can be carried out. It can perform smoothly continuously without waste.

The apparatus of claim 4 further includes: a plurality of collecting plates that are integrally rotated with the cleaning tank in the washing tank and the sand and gravel dropped from the collecting plate at the rotational rising position of the collecting plate to the fractional extraction section. The guide plate is provided, and according to this apparatus, sand and gravel after pre-cleaning can be smoothly transferred to the fractionation extraction unit at the same time with a simple structure by utilizing the rotational motion of the cleaning tank.

The apparatus of claim 5 is configured to connect the mesh-shaped rotating body in the fractional extraction unit to the rotating drum type washing tank of the preliminary section to rotate integrally. In this way, the device configuration can be simplified and a single drive source can be provided. The cleaning tank and the rotating body can be driven to rotate.

1 is a system diagram showing a flow of facility treatment including a treatment apparatus as an embodiment of the present invention.

FIG. 2 is a longitudinal cross-sectional view of the processing apparatus in FIG. 1. FIG.

3 is a perspective view of the processing apparatus shown in FIG. 2;

4 is a perspective view showing a part of the processing apparatus shown in FIG. 2;

5 is a flow diagram showing the flow of treatment according to the conventional treatment equipment for the remaining waste liquid of fresh concrete.

FIG. 6 is a diagram illustrating a configuration of the classifier 208 in FIG. 5.

<Brief description of symbols for the main parts of the drawings>

18: processing unit 20: sand

22: Gravel 36: Pre-Government

38: sorghum part 40: fractional extract part

42: washing tank 58: outlet

62: input pipe 64, 66, 74, 76: spiral projection

68: collecting plate 70: information plate

73: rotating body

Next, an example in the case where the present invention is applied to the treatment of the recovered waste liquid of the remaining raw concrete will be described in detail with reference to the drawings.

1 (A) shows systematically the flow of processing in the treatment facility. In Fig. 1 (A), 10 denotes a water hopper which receives the recovered waste liquid of fresh concrete (surplus raw concrete), and the waste liquid received in this water hopper 10 is stored in the raw water pit 12.

The waste liquid in the raw water pit 12 is pumped up by the pump 14 and sent to the treatment apparatus 18 of the present example via the hopper 16. Then, the sand 20 and the gravel 22 are separated and extracted (sand 20, the gravel 22 represents a deposited state). In addition, the remaining waste liquid from which the sand 20 and the gravel 22 were removed is temporarily stored in the adjustment tank 24.

The waste liquid in this adjustment tank 24 is pumped up again by the pump 14, it is sent to the concentration tank 28 via cyclone 26, and a concentration process is performed by adding a flocculant there.

Subsequently, the waste liquid in the concentration tank 28 is sent to the dehydrator 30, where the dehydration treatment is carried out, and the solids composed of the fine particles contained in the waste liquid are fractionated and extracted as the cake 32, and the remaining liquid is sent to the supernatant tank 34. The supernatant of the supernatant tank 34 is then sent to the reinforcement hopper 10 again.

2, 3 and 4 show the specific structure of the processing apparatus 18.

As shown in FIG. 2, this processing apparatus 18 has a cheonsei government 36, a sorghum part 38, and a fractionation extracting part 40. FIG.

42 is a rotary drum type washing tank in the preliminary section 36. A cylindrical portion 44 having a small diameter is provided at one end in the axial direction (left end in the drawing) and at the center in the radial direction. 3) is rotatably supported.

The sprocket 48 is provided in the cylindrical part 44, and the chain 50 is wound up by it. Then, the cleaning tank 42 is operatively connected to the drive motor 52 through the sprocket 48 and the chain 50, and is driven to rotate by this drive motor 52 (see FIG. 3).

The donut disk-shaped hard plates 54 and 56 are provided in the axial end of the washing tank 42, respectively. Here, one of the hard plates 54 has a height up to the cylindrical portion 44, and the other hard plate 56 is taller than that. Accordingly, the liquid in the cleaning tank 42 is discharged by the drain chute 60 and the overflow through the outlet 58 formed inside the cylindrical portion 44.

In addition, in the input pipe 62, the recovered waste liquid of the remaining fresh concrete through the input pipe 62 is introduced into the washing tank 42. The input pipe 62 also serves as a supply pipe for supplying fresh washing water into the washing tank 42.

The washing tank 42 is provided with a spiral protrusion 64 along the inner circumferential surface thereof, and the sand and the gravel inside the washing tank 42 rub against each other in the grooves of the spiral protrusion 64, that is, of the spiral protrusion 64. Along with the rotation, it is sent in the right direction in FIG.

The washing tank 42 is provided with a spiral butt-shaped projection 66 for sand dust collecting the sand on its outer circumferential surface in the right direction in FIG. 2.

The sorghum section 38 includes a collecting plate 68 and a tapered and meshed guide plate 70 and a meshed vortex blocking plate 72 disposed in the center of the cleaning tank 42 at a predetermined pitch in the circumferential direction along the inner circumferential surface of the rotating drum cleaning tank 42. Doing.

These collecting plates 68, guide plates 70, and vortex preventing plates 72 are provided in a state of being integrally rotated with the cleaning tank 42.

This sorghum part 38 picks up the sand and gravel of the bottom of the washing tank 42 by the rotation of the collection plate 68, and then falls to the guide plate 70, and after the guide action of the guide plate 70 prevents the vortex by the vortex prevention plate 72. It achieves the effect of passing through the fractional extraction unit 40 of the post-process.

The fractional extraction unit 40 includes a cylindrical rotating body 73. In the rotary body 73, the left end in Fig. 2 is connected to the rotary drum cleaning tank 42, and rotates integrally with this.

In the center right end part of FIG. 2 of this rotating body 73, the cylindrical part 44 of a small diameter is provided, and it is rotatably supported by the support roller 46 in this cylindrical part 44. FIG.

The water tank 75 is provided in the lower side of the rotating body 73, and the lower part of the rotating body 73 can rotate in the state in which the lower part was deposited in the inside of the water tank 75. FIG.

The rotating body 73 is provided along the inner circumferential surface of the spiral projection spiral 74 for gravel stones which sends the gravel remaining inside the rotating body 73 to the right in the drawing, and on the outer circumferential side the sand of the bottom of the water tank 75 is left. Spiral projection 76 for sand house for sending in the direction is installed. These spiral protrusions 74 and 76 are also provided in a state of rotation integrally with the rotating body 73 and the cleaning tank 42.

On the outer circumferential side of the rotor 73, a mesh-type sand bucket for integrally rotating with the rotor 73, picking up the sand of the bottom of the water tank 75 sent to the spiral protrusion 76 for sand house, and dropping the sand into the sand chute 80 (see FIG. 3). 78 is installed.

At the axial end (right end in the figure) of the rotating body 73, a gravel discharge portion 82 which extracts the gravel sent by the spiral protrusion 74 and discharges it to the outside is provided.

The gravel discharge portion 82 has a collecting plate 84, a tapered guide plate 86, and a vortex preventing plate 88, which are integrally rotated at a predetermined pitch in the circumferential direction on the inner surface of the rotating body 73, and lifted up by the collecting plate 84. After falling, the dropped gravel is discharged to the outside from the inner exit 90 of the cylinder 44 by the guide action of the guide plate 86.

In FIG. 2, 92 at the left end is a washing water supply pipe, and clear water is supplied through the washing water supply pipe 92. The fresh water supplied is supplied to the water tank 96 on the rotating body 73 side via the lower communication chamber 94 of the rotary drum type washing tank 42.

In the figure of the water tank 75 which forms this water tank 96, the upper plate of the right end part is shorter than the hard plate 56 of an intermediate position in the axial direction, and the liquid in the water tank 96 passes over this upper plate 98 (overflows, ) It is discharged to the discharge chamber 100. The water discharged to the discharge chamber 100 is led to the adjustment tank 24 together with the liquid from the drain chute 60.

Next, the operation of the processing apparatus 18 will be described below.

1, the raw concrete (remaining fresh concrete) recovered waste liquid pumped from the raw water pit 12 by the pump 14 flows into the hopper 16, and the washing tank 42 is introduced through the input pipe 62 as shown in FIG. Is put inside. Clean washing water is continuously supplied from the inlet tube 62 into the washing tank 42.

Solids in the waste liquid introduced into the cleaning tank 42 are rubbed together by the rotation of the cleaning tank 42, and furthermore, the spiral protrusions 64 (see FIG. 2) are transferred by the feeding action of the spiral protrusion 64 (see FIG. 2) provided along the inner circumferential surface of the cleaning tank 42. In each other between the grooves and 64. In the process, the cement component attached to the surface is peeled off from the surface of the sand and gravel particles.

The cement component (and trace amount of mud component) removed from the surface of the sand and gravel becomes suspended and suspended in water by the stirring action of the washing tank 42, and exits under the water supply of the washing water through the input pipe 62. From 58 it is discharged continuously to drain chute 60 as overflow.

In the inside of the washing tank 42, the cement component of the surface of sand and gravel is peeled off and removed as mentioned above, and sand and gravel are sent to the right direction in FIG. 2 by the conveying action of the spiral protrusion 64 under such a function. Then, when the sorghum part 38 is reached, sand and gravel are picked up by the collecting plate 68 and lifted upward, and are dropped from the collecting plate 68 at the rising position of the collecting plate 68.

The dropped sand and gravel are introduced into the rotor 73 of the fractional extraction part 40 of the next step by guiding action of the guide plate 70 while vortex is prevented from the vortex prevention plate 72.

Sand and gravel introduced into the rotor 73 of the fractional extraction unit 40 are classified into sand and gravel by the action of the rotor 73. That is, in this fraction extraction part 40, the rotating body 73 can rotate in the state which immersed the lower part in the inside of the water tank 75, and the sand thrown in the rotating body 73 isolate | separates the weight in the water tank 75 through the body of this rotating body 73. do.

In addition, the water tank 96 in the water tank 75 is always supplied with clear water through the washing water supply pipe 92 and the communication chamber 94.

Sand dropped into the water tank 75 through the body of the rotating body 73 is continuously sent in the left direction in FIG. 2 by the transfer action of the sand collector spiral protrusion 76 inside the water tank 75, and lifted up by the sand bucket 78 After it is exhausted, it is dropped to the sand chute 80 (see FIG. 3) and discharged from the sand chute 80 to the outside.

The gravel remaining inside the rotating body 73 is sent to the gravel discharge portion 82 by the transfer action of the spiral protrusion 74 for gravel stones, and discharged from the outlet 90 to the outside by the action of the gravel discharge portion 82.

The overflowed water from the water tank 75 is sent to the dehydrator 30 of FIG. 1 together with the drainage of the drain chute 60, where it is dewatered, and the cement component (and trace amount of mud) contained in the liquid is separated as the cake 32. And extracted. The remaining liquid is then sent to the supernatant tank 34 and stored there.

According to this embodiment as described above, sand and gravel can be extracted in a clean state without cement adhered to the surface, and therefore, even when these sand 20 and gravel 22 are left in a deposited state, they do not harden, and the surface Since the cement component is not adhered to, the extracted sand 20 and gravel 22 can be effectively reused again as a material for concrete or other materials, and economic efficiency can be remarkably improved.

In addition, according to the apparatus of the present example, it is possible to efficiently carry out the sand and gravel pre-cleaning from the recovered waste liquid of remaining raw concrete to the fractional extraction of the sand 20 and the gravel 22 continuously and efficiently with the same apparatus.

Moreover, the apparatus of this example comprises the rotating drum type washing tank 42, the sorghum part 38, the rotating body 73 and the gravel discharge part 82 in the fractionation extraction part 40, and the sand helical protrusions 66 and 76 as a whole rotary structure. As a result, the overall structure can be simplified, and the driving source is also one.

The above is an example of the treatment of the remaining waste concrete recovered waste liquid, but the present invention can also be applied as a method or apparatus for fractionally extracting sand and gravel from excavated soil in tunnel construction and the like. As a result, sand and gravel can be separated and extracted in a clean state from the soil which has been disposed of at a cost for disposal, and these can be effectively utilized as raw concrete or other materials.

As mentioned above, although the Example of this invention was described above, this is only an example and the present invention can be implemented and comprised in the form which added various changes in the range which does not deviate from the main point.

Claims (5)

A mixed waste material containing cement or mud and sand and gravel is housed together with water in a rotating drum type washing tank, and the mixed waste material is rubbed with each other by rotation of the washing tank under water supply in the washing tank to make a sand and gravel surface. A pre-cleaning treatment is performed in which the cement or mud component adhered is peeled off and removed together with the drainage. After that, the sand and gravel are separated by solid-liquid extraction, and classified by sieve to classify and extract clean sand and gravel. A method of treating mixed waste materials comprising cement or mud and sand and gravel as characterized. In the apparatus for treating mixed waste including cement or mud and sand and gravel, (a) having a non-meshed and independent container-type rotating drum cleaning tank, by rotating the cleaning tank under water supply while receiving the mixed waste material and water in the cleaning tank, A charter unit which removes the cement component or the mud component adhered to each other by friction and removes them together with the drainage, (b) a fractionation extracting section for classifying and extracting the sand and gravel by sifting the sand and gravel after pre-cleaning by the charter government; (C) the apparatus for treating mixed waste materials comprising cement or mud components and sand and gravel, characterized in that it comprises a sorghum section for carrying out the solid-liquid separation of the sand and gravel in the cleaning tank and then passing it to the fractionation extraction section. 3. A spiral protrusion according to claim 2, wherein a spiral protrusion is provided to rub the sand and the gravel along the inner surface of the rotary drum type cleaning tank and to pass from one end side to the other end in a direction parallel to the axis of the drum. Apparatus for treating mixed waste material comprising a cement component or a mud component and sand and gravel, characterized in that the sorghum part is provided at a transfer destination. The said water-receiving part is installed in the rotating state integrally with the said washing tank at the predetermined | prescribed pitch in the inner surface of the said washing tank and in the circumferential direction at the axial end of the said drum type washing tank. And a plurality of collecting plates for picking up and lifting sand and gravel from the bottom of the cleaning tank in accordance with the rotation of the cleaning tank, and being installed in a rotational state integrally with the cleaning tank on the central side of the cleaning tank, Cement component or mud component and sand and gravel processing apparatus comprising a sand and gravel, characterized in that it has a guide plate for guiding the falling sand and gravel dropped from the collecting plate to the fractionation extraction unit. The method of claim 2, wherein the fractional extracting unit has a mesh-like rotating body to drop the sand to the outside through the body, the inside of the sand and gravel introduced into the inside, the interior of the drum-like Apparatus for treating mixed waste materials comprising cement or mud and sand and gravel, characterized in that connected to the cleaning tank to rotate integrally.