JP2001347251A - Machine and method for treating industrial waste - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a treating machine and a method, in which volume reduction treated rock wool waste or glass wool waste dumped and disposed in a refuse are reused as the raw material of rock wool or glass wool, respectively. SOLUTION: Rock wool waste and glass wool waste are treated by using an industrial waste treatment device equipped with both a compressing and pulverizing device and a screening device. Thereby, metallic foreign matters are removed from waste powder thereof and the residue is reutilized as the raw material of rock wool and glass wool.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to rock wool waste and glass wool that are discharged as industrial waste in connection with piping and equipment of plant equipment, power plants, etc., or maintenance work and demolition work of buildings. The present invention relates to an industrial waste treatment apparatus and an industrial waste treatment method for recycling waste as a raw material for rock wool and glass wool.

[0002]

2. Description of the Related Art Metallic foreign matter is contained in pipe wool and glass wool waste discharged from piping and equipment of plant facilities, power plants, etc., or from maintenance work and demolition work of buildings. Therefore, it is not suitable for reuse as a raw material for rock wool or glass wool. Therefore, in the conventional processing method, a method of reducing the volume of these wastes and then dumping them at a disposal site has been used. For example, Japanese Unexamined Patent Publication No. Hei 5-269598 discloses an industrial waste volume reducing device in which a mechanism for reducing the volume by pressing is mounted on a vehicle with respect to reducing the volume of industrial waste having a small bulk density. Also, JP-A-10-32379
No. 8 discloses a device for compressing and reducing volume of glass wool waste material or rock wool waste material, which is a technology related to volume reduction treatment, and relates to a technology of recycling processed industrial waste as a raw material. Is not disclosed.

[0003]

However, the volume reduction treatment is a technique that only reduces the volume of industrial waste,
There is still a problem that after the volume reduction treatment, the waste is dumped at the disposal site, which is not a fundamental measure for industrial waste treatment. An object of the present invention is to solve this problem, and to produce rock wool waste and glass wool waste discharged in connection with plant facilities, piping and equipment of power plants, etc., or maintenance work and demolition work of buildings. Is to provide a processing apparatus and a processing method for reusing as a raw material of rock wool and glass wool. The present inventors have found that, among the foreign substances contained in the pipe wool and glass wool waste discharged from the pipes and equipment of the plant equipment, the power plant, etc., or the maintenance work and the demolition work of the building, etc. By paying attention to the fact that foreign matter that is preventing reuse as a raw material is mainly metal, by treating the industrial waste with a foreign matter separation device such as a sieving device after compression and crushing,
The present inventors have found that metal foreign matter can be easily separated and removed, and can be reused as a raw material for rock wool and glass wool, and the present invention has been completed.

[0004]

That is, the present invention provides a compression and crushing apparatus for crushing rock wool waste or glass wool waste, and a foreign substance mixed in the crushed rock wool waste or glass wool waste. An industrial waste treatment device comprising a foreign matter separation device for removing trash, wherein the compression force of the compression and crushing device is 6 MPa or more and 25 MPa.
a or less, the foreign matter sorting device is a sieving device,
The sieve used for the sieving device has an opening of 6m
It includes a configuration of not less than m and not more than 10 mm. In addition, the present invention compresses and crushes rock wool waste or glass wool waste under a pressure of 6 MPa or more and 25 MPa or less, and then separates it with a sieve having an opening of 6 mm or more and 10 mm or less, and collects the crushed powder that has passed through the sieve. A method for treating industrial waste, comprising using recovered pulverized powder as a raw material for rock wool or glass wool.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, as a method for crushing rock wool waste and glass wool waste, which are industrial wastes, a method of compression crushing is preferable. That is, by performing the compression crushing, rock wool and glass wool in the waste are crushed, but the metal foreign matter remains without being crushed. Therefore, by processing with a foreign matter separation device such as a sieving device, both can be easily processed. Because it can be separated into

The pressure at the time of compressing and pulverizing rock wool waste and glass wool waste is 6 MPa or more and 25 MPa.
The following are preferred. That is, if the pressure is less than 6 MPa, the pulverization of rock wool and glass wool becomes insufficient, and it becomes difficult to separate the foreign matter from the foreign matter. Also, if the pressure exceeds 25 MPa, metal foreign substances may be removed due to the compression and pulverization. Since it becomes easy to fragment and pulverize, the amount of foreign metal mixed in the collected pulverized powder increases, so when the collected pulverized powder is used as a raw material for rock wool or glass wool after being separated by a foreign substance separation device, It is not preferable because there is a risk of causing problems in manufacturing and quality.

Rock wool waste or glass wool waste pulverized by the compression and pulverizing device is separated into rock wool or glass wool powder and foreign matter by a foreign matter separation device. As a foreign matter sorting device used in the present invention, a sieving device can be exemplified, and a vibration type sieving device, particularly, a vibration type sieving device of a horizontal vibration type is preferable because it has excellent sorting performance. Furthermore, if the sieving surface of the sieving device is slightly inclined, metal foreign matter remaining on the sieving surface can be easily removed because it moves to the lower side of the sieving surface due to vibration or lateral vibration. Can be separated.

[0008] The opening of the sieve of the sieve is 6 m.
The length is preferably not less than m and not more than 10 mm. 6 sieve openings
If it is less than mm, the sieve is likely to be clogged, which makes it difficult to perform a smooth sieving process, which is not preferable.
Further, if the opening of the sieve exceeds 10 mm, it is not preferable because the accuracy of separating the crushed powder of rock wool or glass wool from foreign matter is reduced. The pulverized powder collected after passing through the sieve can be reused as a raw material for rock wool or glass wool.

Since dust is generated when the industrial waste is compressed and crushed and when the compressed and crushed industrial waste is separated, the industrial waste treatment apparatus according to the present invention removes the generated dust. It is necessary to have facilities for Further, by mounting the industrial waste treatment apparatus according to the present invention on a mobile facility such as a vehicle, a mobile industrial waste treatment apparatus can be provided. By using the mobile type, the industrial waste processing apparatus can be moved to the industrial waste generation site to process the industrial waste, so that efficient processing can be performed.

[0010]

(Embodiment 1) FIG. 1 shows an embodiment of an industrial waste treatment apparatus according to the present invention suitable for treating rock wool waste and glass wool waste (hereinafter, both are simply referred to as waste). It is an outline side view of an example. In FIG. 1, a compression crusher 50, a blower 44, and a dust remover 14 are provided via a bottom plate 12 on a bed of a truck 10, which is a moving vehicle. Further, the vibration type sieving device 32, which is a foreign matter removing device, is manufactured so that it can be easily moved, is loaded on the truck 10, moves to a place where waste is treated, and arrives at a target place. Track 10
From the compression crusher 50 through the discharge duct 28.
To form an industrial waste treatment apparatus according to the present invention. The compression and crushing device 50 has a charging casing 11, which includes a bottom plate 12 provided horizontally and a pair of side walls 23 erected in parallel on the bottom plate 12. A push plate 40 provided between the front end (left end in the drawing) and the rear end (right end in the drawing) of the pair of side walls 23 and provided on the bottom plate 12 so as to be movable in the front-rear direction;
A plate-shaped shutter 38, which is provided between the rear end portions (right end portions in the drawing) of the pair of side walls 23 facing the push plate 40 and is provided on the bottom plate 12 so as to be vertically movable;
2 and a cover 22 provided at an interval on the
The bottom plate 12, the pair of side walls 23, the push plate 40, the shutter 38, and the push cover 22 constitute a rectangular parallelepiped box.

The push plate 40 is moved forward and backward by a main push cylinder 46, and the push lid 22 of the charging casing 11 is rotated by a push lid cylinder 20 about a shaft 20a. The upper part of the charging casing 11 is opened and closed. Then, the push lid cylinder 20
Is rotatably supported in the up-down direction, so that when it operates and pushes the push lid 22, it itself rotates. Further, the shutter 38 opens and closes the rear part of the charging casing 11 by the shutter cylinder 24, and the compression and crushing device 50 is a so-called two-shaft type compression and crushing device.

A discharge duct 28 is provided behind the shutter 38 of the compression and crushing device 50 (right side in the figure), and a vibration type sieving device 32 is provided below the discharge duct 28 as a foreign matter separating device. I have. Further, a dust scattering prevention cover 30 for preventing scattering of dust is attached to a joint between the discharge duct 28 and the vibration type screening device 32 and the vibration type screening device 32. The vibrating sieve 32 has a horizontal vibrating sieve 34 which is inclined downward in a direction orthogonal to FIG. 1 which is a side view. A collection container 36 is provided. Further, a foreign matter collection container (not shown) is provided at the tip of the sieve 34.

Further, a dust removing device 14 is located in front of the compression and crushing device 24 (left side in the figure).
Is provided with a blower 44 and a blow duct 16. By operating the blower 44, air in the industrial waste treatment device is collected by the dust removal device 14 through the suction duct 18 attached to the discharge duct 28. Can be A hopper filter is installed in the dust removing device, and the collected air is discharged from the exhaust duct 16 after being removed by the high-performance filter. Therefore, the exhaust gas contains little dust.

The waste to be treated is introduced into the introduction casing 11 through an opening (not shown) provided on one side of the pair of side walls 23. Next, the press cover cylinder 20 compresses the press cover 22 by pressing the press cover 22 until the press cover 22 is level with the bottom surface of the loading sequence 11. Is done. The crushed waste is
The shutter 38 is moved upward to be opened, pushed out of the shutter 38 by the push plate 40, and
After passing through 8, it is put into a vibrating sieving device 32 as a foreign matter separating device.

In this embodiment, as a vibration type sieving apparatus, a horizontal vibration type sieving apparatus KF-600N manufactured by Eiwa Machine Industry Co., Ltd. was used, and the opening of the sieve was 8 mm. The crushed waste put into the vibration type sieving device 32 is separated by a sieve 34, and the crushed powder that has passed through the sieve 34 is collected in a powder collecting container 36 and used as a raw material for rock wool and glass wool. . Further, the residue on the sieve moves below the sieve with the vibration of the sieve 34, is collected in a foreign matter collection container (not shown), and is taken out from the industrial waste treatment apparatus. Furthermore, since this industrial waste treatment apparatus is mobile, it can be moved to the site where industrial waste is generated, so that the treatment of industrial waste is efficient.

(Embodiment 2) The 5000 kg of rock wool waste attached to the outer peripheral portion of the piping of the power plant and removed during the maintenance work is divided into 500 batches of 10 kg each. And the rock wool powder was recovered. However, the pressure for the compression and pulverization was 14.7 MPa. The collected powder is 4983k
g and 15 kg of effluent mainly consisting of metallic foreign matters recovered as a residue on the sieve. When rock wool felt was manufactured using the recovered powder as a raw material, the manufactured rock wool felt had a density of 40 k.
g / m ³ , thermal conductivity = 0.038 W / (m · K), hot shrinkage temperature = 460 ° C., and thus sufficiently satisfied the quality of rock wool felt described in JIS A 9504. In addition, no particular problem occurred when producing rock wool felt.

[0017]

According to the present invention, rock wool waste and glass wool waste are conventionally discarded at a disposal site after volume reduction, but the industrial waste treatment apparatus and the industrial waste treatment method according to the present invention are used. This has made it possible to reuse it as a raw material for rock wool and glass wool.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an industrial waste treatment apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Truck as a mobile vehicle 11 Input casing 12 Bottom plate 14 Dust removal device 16 Air blow duct 18 Suction duct 20 Push lid cylinder 22 Push lid 23 Side wall 24 Shutter cylinder 28 Discharge duct 30 Dust scattering prevention cover 32 Vibration type sieving device as foreign matter sorting device 34 sieve 35 recovery duct 36 powder recovery container 38 shutter 40 pressing plate 44 blower 46 main pressing cylinder 50 compression and crushing device

Continued on the front page (72) Inventor Kumi Goto 2-5-5, Tsurumichuo, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Inside of Ask Sanshin Engineering Co., Ltd. (72) Inventor Kazuki Iwanami 2-chome, Tsurumichuo, Tsurumi-ku, Yokohama-shi, Kanagawa No. 5 Ask Sanshin Engineering Co., Ltd. F-term (reference) 4D004 AA16 AA31 AB03 AC07 BA02 CA03 CA04 CA12 CB13 DA03 DA07 DA20 4D021 AA11 AB02 CA07 EA10 EB01 4D063 AA01 GA10 GC17 4D067 EE13 EE18 GA11 GA16 GA18 GB05

Claims (3)

[Claims] An apparatus for treating rock wool waste or glass wool waste, comprising: a compression crusher for crushing rock wool waste or glass wool waste; and a compression crusher for crushing rock wool waste or glass wool waste. An industrial waste treatment apparatus comprising: a foreign matter separation device for removing foreign matter mixed therein. 2. The compression force of the compression and crushing device is 6 MPa or more.
2. The industrial waste treatment apparatus according to claim 1, wherein the pressure is 5 MPa or less, the foreign matter separation apparatus is a sieving apparatus, and a sieve used in the sieving apparatus has an opening of 6 mm or more and 10 mm or less. 3. Rock wool waste or glass wool waste is compressed and pulverized at a pressure of 6 MPa or more and 25 MPa or less, then separated by a sieve having an opening of 6 mm or more and 10 mm or less, and a pulverized powder passing through the sieve is collected. A method for treating industrial waste, comprising using recovered pulverized powder as a raw material for rock wool or glass wool.