JP2002265958A - Recycle wax production apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recycle wax production apparatus which can uniformly scatter a raw material of a waxy substance on a grate and is simple-structured and low-cost. SOLUTION: This production apparatus is equipped with a waxy substance production means for producing a molten waxy substance from a raw material, a charge-in means for sending the molten waxy substance out, and a granulating means for granulating the waxy substance. The waxy substance production means causes the charged material to fall into a combustion tube, thermally decomposes and melts the material on the grate of an oven body, and collects the melt, as the waxy substance, dripping down from the grate. The oven body of the waxy substance production means comprises a grate and a combustion tube united thereto, the upper part of the combustion tube being rotatably supported. The granulating means has a waxy substance charge hopper, a heating member attached to the hopper for maintaining the molten state of the waxy substance, an opening/closing member of a hopper discharge port, and a cooling vessel which contains a collected cooling liquid and is installed at the falling position of the waxy substance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recycled wax for producing a wax-like substance melted by pyrolysis from synthetic resin such as waste plastic which becomes industrial waste, and for producing granules from the molten wax-like substance as a raw material for recycling. It relates to a manufacturing device.

[0002]

2. Description of the Related Art Most of synthetic resins of industrial wastes are heated and melted. Therefore, when reused, pellets are formed again by pulverization and extrusion molding. However, a cross-linked product such as cross-linked polyethylene cannot be pelletized because it is not heated and melted, and when reused, a wax-like substance is used.

As disclosed in Japanese Patent Application Laid-Open No. 5-84742, the production method of the wax-like substance is as follows. Of polyethylene or the like. Then, the raw material is dropped onto the rostral from the inlet of the apparatus, and the flammable highly crosslinked polyethylene is ignited and burned to melt the synthetic resin for the waxy substance, and the molten material is dropped into the tank from the rostral hole. . Oxygen in the tank is quickly consumed and becomes oxygen-deficient, and the melt is thermally decomposed in the oxygen-deficient state to become a wax-like substance and accumulated in the tank. The wax-like substance that has melted and become hot is partially vaporized in an oxygen-deficient state to generate a flammable high-temperature gas, which is mixed with air and burns to maintain the melting of the raw material. Is done. Therefore,
At the time of startup, supply of heat energy is required, and thereafter heat energy is naturally supplied.

However, in the above-mentioned conventional method for producing a wax-like substance, since the position of the raw material falling on the rostrum is always constant, the raw material is biased to a part of the rostre,
As a result, the thermal decomposition efficiency of the raw material is reduced, and the quality of the wax-like substance is reduced.

[0005] The molten wax-like substance is solidified to produce a product. Conventionally, there are various granulation means for producing granules from a melt as a raw material, but most of them are for producing high-quality granules having small variations in size and shape, which makes the apparatus complicated. It became a large scale,
The cost was also high. However, there is a problem that if the demand for quality is low, it will not be profitable if it is made with an expensive device.

[0006]

SUMMARY OF THE INVENTION The present invention has been developed in consideration of the above circumstances, and has as its object to distribute raw materials evenly on a rostrum and to have a simple and inexpensive structure. An object of the present invention is to provide an apparatus for producing a recycled wax.

[0007]

SUMMARY OF THE INVENTION The present invention comprises a waxy substance producing means for producing a molten waxy substance from a raw material,
An input means for extracting the molten wax-like substance from the wax-like substance producing means, pulling it upward, and then sending the molten wax-like substance, and a granulating means for granulating the wax-like substance derived from the input means, wherein the wax-like substance producing means comprises: The raw material is introduced from the inlet of the exhaust gas combustion chamber, the raw material is dropped into the combustion cylinder of the bottomed cylindrical furnace body, and the raw material is thermally decomposed and melted on the bottom of the furnace body, the In a recycled wax production device that stores the molten material dropped from the tank as a wax-like substance in a tank, the wax-like substance production means is such that the furnace body is an integral part of the rostr and the combustion cylinder, and the upper part of the combustion cylinder is rotatably supported. The granulating means has a hopper above which a wax-like substance introduced from a tank is charged, and a heating member for holding a molten state of the wax-like substance. A par, comprising a closing member for opening and closing the discharge port of the hopper through which the wax-like substance, a position droplets of wax-like substance is dropped, characterized in that a cooling bath reservoir coolant.

First, a supplementary explanation of the wax-like substance producing means will be given. The reason why the furnace body is a unit obtained by integrating the rostr and the combustion cylinder is to rotate the rostr when the combustion cylinder is rotated. Therefore, it is intended that the combustion cylinder and the rostral unit are not integrated, and that the roaster does not rotate even if the combustion cylinder is rotated. In addition, as an example of an integrated thing, what made the combustion cylinder and Rostor inseparable by welding, and what made Rostor put on the lower part of a combustion cylinder and made it separable are mentioned.

In order to promote the purification of the exhaust gas, it is desirable to introduce air into the exhaust gas combustion chamber to create an atmosphere in which complete combustion is easily achieved.

[0010] Further, since the rostral is a place where the thermal decomposition is performed, it is the hottest part. On the other hand, since the upper part of the combustion cylinder is far from the rostral, the temperature is lower than the rostral. However, since the portion that rotatably supports the combustion cylinder transmits heat from the rosttor, the temperature rises somewhat when used for a long time. Therefore, in order to minimize distortion due to temperature rise, etc. as much as possible, and to sufficiently exhibit the function of supporting rotatably, a structure that cools the support part may be used. Or an air intake port may be provided in a part surrounding the support portion.

Therefore, in order to simultaneously promote the purification of the exhaust gas and prevent the temperature from rising, the upper part of the combustion cylinder is accommodated in the exhaust gas combustion chamber, and the exhaust gas combustion chamber is provided with air around the support portion of the combustion cylinder. It is desirable to provide an inlet.

Next, the granulating means will be supplementarily described. When the outlet of the hopper is opened, the molten wax-like substance passes through the outlet, and when the outlet is closed, the wax-like substance that has passed so far becomes a droplet. The opening / closing member includes all the members that open and close the discharge port. As an example, a member that linearly reciprocates a flat plate can be cited. Further, since the droplets fall at the same position, there is a possibility that the particles that have not been solidified may stick together. To prevent this, it is desirable that the cooling liquid in the cooling tank has a flow. The heating member may be attached to any part of the hopper. However, if the heating member is provided around the outlet, the wax-like substance does not solidify at the outlet, and clogging of the outlet can be effectively prevented.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a wax-like substance producing means A in a recycled wax producing apparatus according to the present invention will be described with reference to FIGS.

The waxy substance producing means A is for producing a molten waxy substance from a raw material. Specifically, the exhaust gas combustion chamber 2 and the air introduction chamber 3 are formed vertically separated from the first partition plate 1 supported by the frame F, and a tank T is formed below the air introduction chamber 3. The furnace main body 6 is provided through the two partition plates 4, and the furnace main body 6 is disposed in the hole 5 of the first partition plate 1 so as to protrude into the exhaust gas combustion chamber 2 and the air introduction chamber 3.
The upper part of the combustion cylinder 7 is rotatably supported on the first partition plate 1 via a bearing 8, and the periphery of the lower part of the combustion cylinder 7 is surrounded and positioned by a plurality of rollers 9. A drive mechanism 10 for rotating the main body 6 is connected.

In order to prevent air from entering and exiting between the exhaust gas combustion chamber 2 and the air introduction chamber 3, a hole 5 in the first partition plate 1 is formed.
A heat-resistant material is used to seal between the combustion tube 7 and the heat-resistant material, but a flexible material such as glass wool is used so as not to hinder the rotation of the combustion tube 7.

An inlet 11 is provided on the side of the exhaust gas combustion chamber 2.
Is provided so as to be openable and closable, and a supply table 13 for raw materials is provided on a passage 12 communicating with the charging port 11 so as to be able to enter and exit from the charging port 11 to a position directly above the furnace body 6. The arranged second partition plate 4 is formed in a funnel shape, and the melt and the gas pass through the hole 15 of the second partition plate 4. Although not shown, it is desirable to provide a bucket for raising the raw material to the supply table 13 so as to be able to move up and down.

Further, an air inlet 16 is opened around the lower part of the combustion tube 7, and a portion distant from the lower part is surrounded by a cover wall 17 rising from the second partition plate 4. An air passage 18 is opened at the bottom. Therefore, the exhaust gas is forcibly drawn in from the duct 19 side to make the inside of the furnace main body 6 a negative pressure, so that the air flows from the opening 18 to the covering wall 1.
The gas is taken into the furnace body 6 from the inlet 16 through the gap between the combustion tube 7 and the combustion tube 7. Here air is lost through the gap 1
It is desirable to make the opening area of the intake 16 large so that it does not go under the space 4. Specifically, each intake 16
Is formed in an elliptical shape, and is provided so as to surround the entire circumference of the combustion cylinder 7 at the intake 16 when the combustion cylinder 7 is viewed in a plan view.

On the other hand, a gas is generated from the wax-like substance accumulated in the tank T, and the gas rises through the hole 15 of the second partition plate 4 and the hole 20 of the roaster 14, and air and gas are removed from the roster 14. Are mixed and burned immediately above the exhaust gas, and the exhaust gas is firstly burned in the exhaust gas combustion chamber 2 and then guided to the duct 19, where it is secondarily burned in another chamber and dust and unburned gas are generated in the shower room (not shown). It is released to the atmosphere after removal. If the opening area provided in the lower part of the air introduction chamber 3 is provided so that the opening area can be adjusted by, for example, a lid, the furnace body 6 can be opened.
The amount of air can be adjusted according to the internal conditions of the vehicle.

The lower portion of the combustion cylinder 7 has an inner flange 21 on which the edge of the roaster 14 is mounted. A hoist 22 for raising and lowering the roaster 14 is fixed on the exhaust gas combustion chamber 2. An extraction hole 24 for passing through 23 is provided in the exhaust gas combustion chamber 2 so as to be openable and closable, and a window 26 through which a drawer table 25 on which the rostrum 14 is placed is provided so as to be openable and closable on a side surface of the exhaust gas combustion chamber 2.
The draw-out table 25 is provided so as to be able to reciprocate until it reaches above the furnace body 6. Therefore, when replacing the roaster 14, the roaster 14 may be placed on the drawer table 25, moved to just above the furnace body 6, and raised and lowered by the hoisting machine 22.

The drive mechanism 10 for rotating the furnace main body 6 is a general drive mechanism. As shown in FIGS. 1 and 2, a flange 27 on the bearing 8 above the combustion tube 7 is provided with a sprocket. It is formed in a shape or pulley shape, and a chain or a belt is stretched over and rotated by a motor.

The bearing 8, which is a supporting portion of the combustion cylinder 7, and the drive mechanism 10 are housed in the exhaust gas combustion chamber 2, and an air inlet 28 is opened around the bearing 8 and the drive mechanism 10.

In the waxy substance producing means A described above, since the intake 16 is provided at a height corresponding to the outside of the raw material placed on the roast 14, the mixing position of air and gas is the height of the raw material, Thermal energy from the combustion is efficiently transmitted to the raw material, and thermal decomposition is promoted.

Next, the input means B will be described. The charging means B is for withdrawing the molten wax-like substance from the tank T, pulling it up, and then sending it out to the granulating means C. Specifically, the connecting pipe 29
The wax-like substance is discharged from the tank T by opening and closing a valve attached to the connecting pipe 29, and the wax-like substance is pulled up from the connecting pipe 29 using the rising member 30, and another inclined from the upper part of the rising member 30. The waxy substance is charged into the granulating means C via the connecting pipe 31 while being melted. In addition,
The ascending member 30 is for rotating a screw shaft in the pipe by a motor.

Finally, the granulating means C will be described. The granulating means C is for guiding the molten wax-like substance to produce granules to be used as a recycled material. As shown in FIG. 4, a hopper 34 for storing the molten wax-like substance W is provided above a water circulating member 33 as the cooling liquid 32.
An opening / closing member 36 for opening / closing the discharge port 35 is provided. Although FIG. 1 shows the lid 37 to be put on the hopper, it is omitted in FIG. Further, the reference symbol P in FIG.
Is a pipe for sending gas generated from the waxy substance put into the hopper 34 to the combustion cylinder 7.

The circulating member 33 sends water from the pump 38 toward the cooling tank 39, and the cooling tank 39 is arranged at a position where the drops 40 of the wax-like substance fall. A bucket 42 for solidifying the grains 41 is disposed downstream of the cooling tank 39, and a second tank 43 for storing water discharged from the bucket 42 is provided below the bucket 42. Pump 43 from tank 43
8 to guide the water.

The cooling tank 38 is opened at the upper surface to drop the drops 40 into water, and the bottom is inclined so as to become lower toward the bucket 42 so that the water can flow easily. In addition, since water was used as the cooling liquid, a product is obtained by drying the particles.

The bucket 42 has a net 44 for storing grains above the bottom, and a vibration member 45 for draining is brought into contact with the bottom.

The hopper 34 is provided with a pipe-shaped heating member 47 in a cylindrical portion 46 surrounding the periphery of the discharge port 35, allows a heat medium to pass through the heating member 47, and generates heat in the discharge port 35 by heat from the heating member 47. The waxy substance is prevented from solidifying.

The opening / closing member 36 is made of a thick flat plate formed by the hopper 3.
4 is reciprocated linearly along the lower end of the nozzle 4 to open and close the discharge port 35. By changing the reciprocating speed, the opening time of the outlet is changed.

[0030]

According to the present invention, it is possible to produce granules to be used as a recycled material from the raw material. Then, the wax-like substance production means, since the rostral rotates together with the combustion cylinder, the raw material falling from the charging port is evenly scattered on the rostrum, thereby improving the thermal decomposition efficiency of the raw material and improving the quality of the wax-like substance. Improvements are brought. In addition, since the rotatably supporting portion of the combustion cylinder is far from the hottest rostral, the heat-resistant temperature of the supporting portion can be lower than that of the rostrally rotatably supporting structure. Parts can be used. According to the granulating means, the granules can be formed only by dropping the molten wax-like substance into the cooling liquid, so that the structure is simple and inexpensive. Moreover,
The grain quality can be made uniform to some extent only by adjusting the drop amount and drop height of the waxy substance. further,
Since the heat is forcibly removed by the cooling liquid and solidified, the height of the apparatus is lower than that of the method of solidifying naturally during the fall. By providing the heating member in the hopper, it is possible to ensure that the molten wax-like substance passes through the outlet of the hopper. Further, if the opening / closing speed of the outlet is changed by the opening / closing member, the size of the grain can be changed.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an overall image of a recycled wax producing apparatus of the present invention.

FIG. 2 is a longitudinal sectional view showing a wax-like substance producing means.

FIG. 3 is a plan view showing a drive mechanism of a furnace main body and an arrangement of an air suction port.

FIG. 4 is a longitudinal sectional view showing a granulating means.

[Explanation of symbols]

 2 Exhaust gas combustion chamber 6 Furnace main body 7 Combustion cylinder 11 Input port 14 Rostor 32 Coolant (water) 34 Hopper 35 Discharge port 36 Opening / closing member 39 Cooling tank 40 Droplet 41 Particles 47 Heating member A Wax material producing means B Filling means C Granular means T tank

Continuation of the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) F23G 5/027 ZAB F23G 5/027 ZABA (72) Inventor Takanobu Okubo 2089 Sakuracho, Oyabe-shi, Toyama Pref. 72) Inventor Tadayuki Uematsu 1-4-4 Shintoda, Hamamatsu-shi, Shizuoka Pref. Inside the General Electric Wire & Cable Technology Center (72) Inventor Hiromasa Honjo 1-4-4 Shintoda, Hitomatsu-shi, Hamamatsu-shi, Shizuoka Pref. F term in the center (reference) 3K061 AA23 AB03 AC13 DA13 DB01 DB12 FA01 FA07 FA21 4F301 AA13 BD02 CA09 CA24 CA52 4H029 CA01 CA12 4J100 CA31 HA51 HA59 HE17 HF00

Claims (1)

[Claims] 1. A waxy substance producing means (A) for producing a molten waxy substance from a raw material, and a charging means (P) for extracting a molten waxy substance from the waxy substance producing means (A), pulling the molten waxy substance upward, and then sending it out. B) and granulating means (C) for converting the wax-like substance derived from the charging means (B) into granules (41). The wax-like substance producing means (A) includes charging the exhaust gas combustion chamber (2). The raw material is introduced through the port (11), and the raw material is dropped into the combustion tube (7) of the furnace body (6) having a bottomed cylindrical shape. In a recycled wax production apparatus, a raw material is thermally decomposed and melted, and a molten substance dropped from a rostrum (14) is stored in a tank (T) as a waxy substance. ) Is Rostor (14) And the combustion cylinder (7) are integrated, and the upper part of the combustion cylinder (7) is rotatably supported. The granulating means (C) inputs the wax-like substance guided from the tank (T). A hopper (34) is provided above,
A heating member (47) for maintaining a molten state of the wax-like substance
Opening and closing member (3) for opening and closing a discharge port (35) of the hopper (34) through which the wax-like substance passes.
6. A recycled wax production apparatus comprising: (6) a cooling tank (39) for storing a cooling liquid (32) at a position where a drop (40) of a wax-like substance falls.