KR101717258B1 - regenerating method of waste perlite materials - Google Patents

Abstract

The present invention relates to a method for regenerating raw materials of perlite waste, intended to regenerate perlite waste used as insulation materials or heat reserving materials. To this end, the method for regenerating raw materials of perlite waste comprises the following steps: forming particles; filtering foreign substances and reinforcing fibers; storing the particles in a primary storage tank; transferring the stored particles; distributing only fine particles from the particles; separating substances having high specific gravity contained in the fine particles so as to release only regenerated perlite particles; and collecting the regenerated perlite particles.

Description

Regenerating method of waste perlite materials [

More particularly, the present invention relates to a method for regenerating a spent peroxide raw material, which recycles the spent perry used as a thermal insulator or a heat insulator as a raw material in the form of a particulate material from which a foreign substance has been removed by a continuous process.

Perlite, also known as pearl stone, is a natural glass with 2-5% crystalline water, produced by rapid cooling of volcanic lava or magma into the surface lake, It is light glossy. Mineral called perlite includes obsidian, perlite, and cane rock. Except for heating loss, chemical composition is similar to granite, but when heated at high temperature it expands and becomes hollow. In this high-temperature heating process, 4 to 5% of perlite powder, which is not worthy of a finished product, is obtained.

An example of such a heat insulating material using perlite is disclosed in Korean Patent Registration No. 10-1301699 (registered on Aug. 23, 2013, hereinafter referred to as Patent Document 1).

In the conventional case, the heat insulating material or the heat insulating material using the perlite has been buried or incinerated without being recycled. However, when buried, it takes a long time to decompose the heat insulating material or the heat insulating material using the perlite. It is not only wasted resources that can be recycled but also causes various environmental pollution. However, due to the nature of the waste pearlite, separation of the reinforcing fibers contained in the interior of the pearlite and fine dusts and metal powder It is difficult to separate foreign matters from the waste.

Korean Patent Registration No. 10-1301699 (registered on Aug. 23, 2013)

An object of the present invention is to prevent the occurrence of secondary pollution by collecting a heat insulating material or a heat insulating material in which a perlite is used, removing foreign matter through a regeneration process, and then forming a regenerated perlite powder with a predetermined size, And to provide a method for regenerating a spent purity raw material that can increase the economic effect.

In addition, it is another object of the present invention to provide a method for recycling waste poultry raw materials, which can further increase the recyclability by allowing various sizes of recycled perlite powder to be finally regenerated and collected to be selected.

To achieve the above object, according to the present invention, there is provided a method for recycling waste pervious material for regenerating waste pervious material used as a heat insulating material or a thermal insulating material, comprising the steps of: crushing and pulverizing waste pervious material at a crushing part to form a granular material; Filtering foreign matter and reinforcing fibers having a large size from the powdery material having passed through the crushing section, at a flare portion provided with a vibrator; Storing the powdered product passing through the squeeze part in a primary storage; Feeding the powdered material stored in the primary storage tank by a feed screw connected to one side of the primary storage tank; A step of classifying only fine particles of a predetermined size from the powder particles conveyed by the conveying screw in a cyclone classifier to which the other side of the conveyance screw is connected; Separating a stoneware powder or a metal powder having a specific gravity contained in the fine powder particles delivered from the cyclone classifier from a foreign matter separator connected to the cyclone classifier to discharge only the recovered perlite powder; And collecting the recovered perlite powder discharged from the foreign material separating tank in a bulk collecting tank, the method comprising the steps of: classifying the fine particles in the cyclone classifier; Storing a powder having a larger particle size or a larger particle size than the finely divided powdery material in a secondary storage tank provided below the cyclone classifier; And a step in which the powder particles having a larger particle size or a larger mass than the fine powder particles stored in the secondary storage tank are transferred to the pulverizing unit by another transfer screw.

Here, the step of separating the stoneware powder and the metal powder having a large specific gravity contained in the fine particle-dispersed material and discharging only the recycled perlite powder may include a step of separating the foreign material from the cyclone classifier, The impeller which is attached to the end portion of the water supply pipe installed on the lower side of the separating tank causes the water continuously discharged through the water supply pipe to pass between the obliquely angled wings of the impeller to rotate the impeller, The purifying powder and the purifying powder are mixed with water by a vortex so that the perlite powder is water repellent. The perlite powder is floated on water and is discharged through a water pipe formed on the opposite side of the water supply pipe together with water Residual foreign matter, such as stones and metal powders, which are discharged and have a large specific gravity, So that they are separated from each other.

Between the step of discharging the regenerated purite powder and the step of collecting the regenerated perlite powder in the above-mentioned foreign matter separating tank, a plurality of filters The particle size of the reclaimed perlite powder collected in the above-mentioned collectors for collecting the particles is selectively controlled by the rotary filter portion having the net rotatably disposed therein.

According to the present invention, it is possible to prevent the occurrence of secondary pollution due to landfill or incineration by collecting the heat insulating material or the heat insulating material using the perlite, removing the foreign substance through the regeneration process, and then forming the recrystallized perlite powder with a predetermined size, It is possible to increase the economic effect by recycling the recycled perlite powder material in which the minute particles of stones and metal powder in the perlite powder particles are completely removed by using water repellency of the perlite powder,

In addition, there is an effect that the recyclability can be further improved by allowing various sizes of regenerated perlite powder to be finally regenerated and collected to be selected.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process flow diagram showing a method for recycling a spent purity raw material according to the present invention;
FIG. 2 is a schematic view of a spent peroxide raw material recycling apparatus of FIG. 1,
3 is a sectional view taken along the line AA 'in Fig. 2,
FIG. 4 is a process flow chart showing detailed steps of the foreign matter separation step of FIG. 1,
FIG. 5 is a process flow diagram illustrating a method for recycling a spent purity raw material according to another embodiment of the present invention,
FIG. 6 is a schematic view of the spent peroxide raw material recycling apparatus of FIG. 5,
FIG. 7 is a top view of the filter net of the rotary filter unit of FIG. 6,
8 is a schematic view of a spent purging raw material recycling apparatus according to another embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a method for recycling a spent peroxide raw material recycled as a heat insulating material or a heat insulating material, (S20) of filtering foreign matter and reinforcing fibers having a large size from the powdered material passed through the crushing section 3 by the crushing section 6 provided with the vibrator 9, and And the powder is discharged from the first storage tank 10 by the transfer screw 11 connected to the first storage tank 10 at one side of the first storage tank 10, (S30) of classifying only fine particles having a predetermined size from the powder particles fed from the cyclone classifier (13) connected to the other side of the feed screw (11) by the feed screw (11) The fine particles (1) transferred from the clone classifier (13) (S50) of discharging only the recycled perlite powder by separating the stoneware or metal powder having a large specific gravity contained in the dust separator (20) connected to the cyclone classifier (13) (S70) of collecting the recovered perlite powder collected in the particle collecting tank 24.

At this time, during the step S30 of classifying the fine particles in the cyclone classifier 13 and the step S50 of discharging the regenerated perlite powder in the foreign matter separating tank 20, the cyclone classifier 13, Storing a powder having a larger particle size or a larger particle size than that of the finely divided powdery material in a secondary storage tank 17 provided at a lower part of the secondary storage tank 17; Or the fine particles having a large mass are transferred to the crushing section 3 by another conveying screw 11 'and a step of conveying the fine particles separated from the fine particles separated by the conveying screw 11' (S40) of re-pulverizing the fine particles having a large size or a large size in the crushing section (3).

2 and 3, the present invention includes a hopper 1, a crushing section 3, a crushing section 6, a primary storage tank (not shown) for regenerating a spent perlite used as a heat insulating material or a heat insulating material 10, a conveying screw 11, a cyclone classifier 13, a foreign matter separating tank 20, and a collecting tank 24 in this order.

The pulmonary purite introduced into the hopper 1 is adjusted by the quantitative regulation plate 2 to flow into the crushing unit 3 formed in the lower part of the hopper 1.

As shown in Fig. 2, the crushing section 3 crushes and pulverizes waste pulp supplied from the hopper 1 to form a powder compact.

More specifically, the crushing section 3 is provided with a primary crushing roller 4 (4 ') and a secondary crushing roller 5 (5') in order, and the primary crushing rollers 4 and 4 ' And the secondary pulverizing rollers 5 and 5 'are configured to finely pulverize and crush the pulverized perlite as the irregular roller so that the pulverized material is formed while passing through the pulverizing unit 3. The finely pulverized and ground pulverized material is pulverized (6) formed at the lower part of the body (3).

The crush part (6) is provided with a vibrator (9) for filtering foreign matters and reinforcing fibers having a large size from the powdery material which has passed through the crushing part (3).

More specifically, as shown in Fig. 2, the squeeze portion 6 is composed of a squeeze net 7, a squeezing net exchange port 8 and a vibrator 9, and a closed perlite used as a heat insulating material, a heat insulating material or a sound absorbing material Reinforcing fibers for reinforcing the pearlite are attached so that the reinforcing fibers and other large particles not crushed and crushed in the crushing section 3 are filtered by the clamping net 7 of the crushing section 6. [

The screwdriver exchange port 8 is formed outside the screwdriver 6 so as to remove foreign matter caught in the screwdriver 7 at the same time as the screwdriver 7 is exchanged.

A plurality of strips 7 are provided transversely across the squeezing portion 6 and are fixedly attached to the vibrator 9 staked outside the squeezing portion 6 so as to be reinforced by the vibration of the vibrator 9 The fiber or other large foreign matter is caught by the net 7 and passes through only the powder of a certain size and is stored in the primary storage tank 10 formed at the bottom.

2, the primary storage tank 10 is provided with a conveying screw 11 for conveying the powder to the cyclone classifier 13 and a swash plate 12 is formed on the bottom surface of the primary storage tank 10, The granular material from which large particles and reinforcing fibers are separated is slid by the swash plate 12 and is naturally collected by the conveying screw 11 and conveyed to the cyclone classifier 13. [

That is, the primary storage tank 10 is connected with a feed screw 11 for feeding the powder.

The cyclone classifier 13 has a conical shape and a blower 15 is staked on the side of the upper inlet 14 through which the powder is injected into the cyclone classifier 13 through the conveying screw 11. The blower 15 The centrifugal force of the centrifugal separator 13 causes the centrifugal force of the centrifugal separator 13 to flow along the inner wall of the casing of the cyclone classifier 13, The powder is dropped to the secondary storage tank 17 through the lower outlet 16 formed in the lower portion of the cyclone classifier 13 and the granular material having a small particle size and a light mass is formed at the center of the cyclone classifier 13 And is then conveyed to the foreign matter separating tank 20 along the conveying pipe 19. The foreign matter separating tank 20 is provided with an upper outlet 18,

That is, the secondary reservoir 17 is provided at the lower part of the cyclone classifier 13, in which the particle size of the particles is larger than that of the fine particles, or the mass of the particles is large.

Thus, only fine particles of a predetermined size separated from the powdered material conveyed by the conveying screw 11 can be classified and supplied to the foreign material separating tank 20 through the cyclone classifier 13.

On the other hand, between the secondary reservoir 17 and the crushing section 3, another conveying screw (not shown) for conveying the powder having a larger particle size or a larger mass than that of the finely granulated material filtered by the cyclone classifier 13 (11 ').

Therefore, the powder having a large particle size and a large mass that has fallen into the secondary storage tank 17 is returned to the crushing section 3 'through the conveying screw 11' interposed between the secondary storage tank 17 and the crushing section 3 And is crushed while passing through the primary crushing rollers 4 and 4 'and the secondary crushing rollers 5 and 5', and the above process is repeated.

As shown in FIG. 2, the foreign matter separating tank 20 separates the stone powder or the metal powder having a large specific gravity included in the fine powder particles delivered from the cyclone classifier 13 and discharges only the recovered perlite powder particles do.

More specifically, the foreign matter separating tank 20 is provided in the shape of a water tank provided horizontally and long, and has a small particle size classified from the cyclone classifier 13, and is made of fine stones or metal powder mixed in a light powder A water supply pipe 21 and a water discharge pipe 22 are provided for removing foreign matter.

4, the step (S50) of separating the stoneware powder or the metal powder having a large specific gravity contained in the fine powder-like material and discharging only the recovered perlite powder is performed in the foreign matter separating tank 20, The impeller 23 attached to the end of the water supply pipe 21 provided on the lower side of the foreign matter separating tank 20 provided with the transfer pipe 19 connected to the foreign matter separating tank 20 from the air supply 13 supplies water to the water supply pipe 21 The impeller 23 is rotated while the vortex is generated by the rotation of the impeller 23 so that the perlite powder is mixed with the water (S51), and the perlite powdered material having water repellency by mixing the powdered material with water by the vortex is discharged on the water through the water discharge pipe (22) formed on the opposite side of the water supply pipe (21) Stone luna metal Residual foreign matter, such as a base comprises the steps (S53) to be separated submerged in the water.

2, the water supply pipe 21 is connected to the lower side of the foreign matter separating tank 20 in which the transfer pipe 19 connected to the foreign material separating tank 20 from the cyclone classifier 13 is installed, The impeller 23 is attached to the end of the water supply pipe 21 so that the water continuously discharged through the water supply pipe 21 is diagonally bent at an angle of the impeller 23 as shown in FIG. The impeller 23 is rotated while passing between the raised wings so that the impurities which are hydrophobic are not dissolved in water so that vortices are generated by the rotation of the impeller 23 so that the perlite powder is mixed with the water do.

The drain pipe 22 is formed on the opposite side of the water supply pipe 21. In the process of mixing the powder with the water by the vortex, the powder is water-repellent and does not dissolve in water, The remaining foreign matters such as stones or metal powders having a large specific gravity are separated into the water and are left in the foreign matter separating tank 20.

The regenerated perlite powder material in which the foreign matter discharged through the water pipe 22 has been completely removed flows along with the water into the powder collecting tank 24 and the water is removed by the sponge 25 formed at the lower end of the powder collecting tank 24 So that it is exuded, and only the powder is filtered.

As shown in Fig. 2, the powder collecting collection vessel 24 is provided to collect the regenerated purite powder discharged from the foreign material separating tank 20. Fig.

More specifically, the regenerated perlite powdered material filtered by the sponge 25 of the powdery collecting tank 24 is recycled for various purposes, such as building materials such as a heat insulating material, a heat insulating material, a sound absorbing material, or a farmland after moisture is removed.

Meanwhile, as shown in FIG. 5, between the step (S50) of discharging the regenerated purite powder in the foreign matter separating tank (20) and the step (S70) of collecting the regenerated purite powder in the collecting collecting tank (24) Is provided with a rotary filter unit (30) rotatably provided with a plurality of filter nets (35), (35 '), and (35 ") at the ends thereof toward the particle collecting tank (24) in the foreign matter separating tank (20) And a step (S60) of selectively controlling the particle size of the regenerated purite powder collected in the collection tank (24).

6 and 7, the particle diameter of the regenerated purite powder collected in the powder collecting collection tank 24 at the end toward the powder collecting collection tank 24 in the foreign matter separating tank 20 is selected (35 ') and (35' ') are rotatably provided on the filter filter (30).

6 and 7, the rotary filter unit 30 includes a filter fixture 31 provided on the outer side of the water pipe 22 and a filter fixture 31 provided on the filter fixture 31, And a plurality of filter nets 35, 35 ', and 35' 'that are rotatably provided on the rotary shaft 33, respectively.

Accordingly, any one of the plurality of filter nets 35, 35 ', and 35' 'having mutually different gap sizes may intercept the water pipe 22 and rotate the remainder, The sizes of the perlite powder compacts can be selected in various ways, and the recyclability of the reclaimed perlite powder compact materials can be further improved.

8, as shown in FIG. 8, in the foreign matter separating tank 20, a stonewall or a metal powder having a large specific gravity contained in the fine particle powder is separated and only the recovered perlite powder is discharged In step S50, residual foreign matters such as stones and metal powder separated from the perlite powder mixed with the vortex formed by the impeller 23 in the foreign matter separation tank 20 are adsorbed by the ion adsorption unit 40 Step < / RTI >

8, a height of the impeller 23 is set at a predetermined height from the impeller 23 in the interior of the foreign matter separating tank 20, and the height of the impeller 23 is set horizontally along the longitudinal direction of the foreign material separating tank 20 An ion-adsorbing portion 40 may be provided in the form of an open mesh.

8, residual foreign matters such as stones or metal powder separated from the perlite powder and granular material by the vortex formed by the impeller 23 in the foreign matter separating tank 20, And an adsorption network exchanger 43 for exchanging the ion adsorption network 41 or for removing foreign matters adsorbed to the ion adsorption network 41. The ion adsorption network 41 includes an adsorbing network 41,

Thus, residual foreign matters such as stones and metal powder separated from the perlite powder in the foreign matter separating tank 20 are adsorbed on the ion-adsorbing net 41 and removed, thereby surely preventing the remaining foreign substances from being mixed again into the perlite powder- So that residual foreign matter remaining in the foreign matter separating tank 20 can be easily and conveniently cleaned.

With this configuration, the process of obtaining the recycle purite powder from the spent perlite by the reclaimed pulverized raw material recycling apparatus according to the present invention will be described with reference to FIG. 1 to FIG.

The pulp used as a building material such as a heat insulating material, a heat insulating material, a sound absorbing material and the like introduced through the hopper 1 is controlled by a quantitative control plate 2, and then a crushing unit 3 is disposed to remove various foreign substances, The pulverized pulp made of the pulverized product is pulverized and crushed while passing through the primary pulverizing rollers 4 and 4 'and the secondary pulverizing rollers 5 and 5' The reinforcing fibers and the foreign substances having a large size are caught by the screen 7 and are removed through the screen 8 by the plurality of screen 7 which is moved down by the vibration of the vibrator 9 by the vibration of the vibrator 9, Only the small sized granules fall to the primary storage tank 10 and the granulated material that has fallen into the primary storage tank 10 is sent to the cyclone classifier 13 by the transfer screw 11. [

The granular material conveyed to the cyclone classifier 13 is guided to the case inner wall of the cyclone classifier 13 by the strong blowing force of the blower 15 staked at the upper inlet 14 of the cyclone classifier 13 The granular material having a large particle size and a large mass is circulated along the rotating current generated by the centrifugal separator 13 to fall into the secondary storage tank 17 through the lower discharge port 16 formed at the bottom of the cyclone classifier 13, And the powder is discharged to the upper discharge port 18 formed at the upper center of the circulating flow path formed at the center of the cyclone classifier 13 and flows into the foreign material separating tank 20 .

The powder having a large particle size separated into the secondary storage tank 17 is sent to the crushing unit 3 again by the conveying screw 11 ', and the above process is repeated.

The granular material transferred to the foreign material separating tank 20 is floated on the surface of the water in the foreign material separating tank 20. The water continuously supplied through the water supplying pipe 21, The powder is mixed with water by the vortex generated by rotating the impeller 23 at the end of the impeller 23, so that the water-repellent perlite floats on the water without being dissolved in water. In the case of fine stones or metal powder having a large specific gravity The remaining foreign matters are separated and discharged through the drain pipe 22 formed on the other side of the water supply pipe 21 to discharge the powder and water floating in the upper part to the powder collecting collecting tank 24, The water is discharged through the sponge 25 of the sponge 25 and only the separated powder is removed.

The collected recycled perlite powder is recycled for various purposes such as building materials such as a heat insulating material, a heat insulating material, a sound absorbing material, or a plantation after moisture is removed.

Therefore, according to the present invention, it is possible to prevent secondary pollution due to landfill or incineration by collecting the heat insulating material or the heat insulating material using the perlite, removing the foreign substance through the regeneration process, and then forming the recrystallized perlite powder with a predetermined size , It is possible to increase the economic effect by recycling the reclaimed perlite powdered material in which the fine particles of stalactur and metal powder in the perlite powdered material are completely removed, using the water repellency of the perlite, for example, as a building material or a plantation.

While the invention has been described in connection with what is presently considered to be practical exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

3: crushing section 6:
9: Vibrator 10: Primary storage tank
11, 11 ': Feed screw 13: Cyclone classifier
17: Secondary reservoir 19: Transfer tube
20: Foreign matter separation tank 21: Water supply pipe
22: Water pipe 23: Impeller
24: Collected matter collection tank 30: Rotary filter unit
31: Filter fixture 33:
35: filter network

Claims (3)

A method for regenerating waste purged raw material used as a heat insulating material or a heat insulating material,
Crushing and pulverizing the waste pearlite in the crushing section to form a powder compact;
Filtering foreign matter and reinforcing fibers having a large size from the powdery material having passed through the crushing section, at a flare portion provided with a vibrator;
Storing the powdered product passing through the squeeze part in a primary storage;
Feeding the powdered material stored in the primary storage tank by a feed screw connected to one side of the primary storage tank;
Classifying only fine particles having a predetermined size from the powder particles conveyed by the conveying screw in the cyclone classifier to which the other side of the conveyance screw is connected;
Separating a stoneware powder or a metal powder having a specific gravity contained in the fine powder particles delivered from the cyclone classifier from a foreign matter separator connected to the cyclone classifier to discharge only the recovered perlite powder; And
Collecting the recovered perlite powder discharged from the foreign matter separating tank in a collecting tank for collecting the particles;
Lt; / RTI >
Between the step of classifying the fine particles in the cyclone classifier and the step of discharging the recycle purite powder in the foreign matter separating tank,
Storing a granular material having a larger particle size or a larger particle size than the fine granular material in a secondary storage tank provided below the cyclone classifier;
The powder particles having a larger particle size or a larger particle size than the fine powder particles stored in the secondary storage tank are transferred to the pulverizing section by another transporting screw;
Further comprising:
The step of separating the stoneware powder or the metal powder having a large specific gravity contained in the fine particle separator and discharging only the recovered perlite powder particles in the foreign matter separating tank comprises the steps of: The water continuously discharged through the water supply pipe by the impeller attached to the end portion of the water supply pipe installed on the lower side rotates the impeller while passing between the obliquely angled wings of the impeller and the vortex is generated by the rotation of the impeller, A step of mixing the powdered material with water, and a step of mixing the powdered material with the water by vortex to form a powdered water-repellent material. The powdered material is discharged on the water, discharged through a water pipe formed on the opposite side of the water supply pipe, The remaining foreign matter, such as this large stone or metal powder, So as to be separated,
Between the step of discharging the regenerated purite powder and the step of collecting the regenerated purite powder in the above-mentioned particle separator, a plurality of filter nets are provided at the end of the foreign matter separating tank facing the above- Further comprising the step of selectively controlling the particle size of the reclaimed perlite powder collected in the above-mentioned powder collection container by a rotatable filter portion provided rotatably,
The step of separating the stoneware powder or the metal powder having a large specific gravity contained in the fine particle-dispersed material and discharging only the recycled perlite powder is performed by separating the perlite powder mixed with the vortex formed by the impeller in the foreign matter- Further comprising the step of allowing the remaining foreign matters of the stoneware and the metal powder to be ion-adsorbed by the ion adsorbing portion.

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