JP2001163923A - Manufacturing apparatus for waxy substance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing apparatus for a WAXY substance capable of sufficiently supplying gas for combustion surrounding a synthetic resin mounted on a shelf structure. SOLUTION: A shelf structure 8 on which a synthetic resin having a chair polymer is mounted is equipped with a main shelf plate 8a and a subsidiary shelf plate 8b. The main shelf plate 8a is inclined as brought closer to a bottom material 5 as is directed to the outside from the center and has a number of pores passing gas through them from a tank 15 for receiving. The subsidiary shelf plate 8b is arranged leaving some extra space between both the main shelf plate 8a and bottom material 5, and has a ringed part 8g which is protruded toward the outside from the peripheral part of the main shelf plate 8a. The ringed part 8g has a number of pores passing gas through them toward the thick direction from a tank 15 for receiving and is inclined as brought closer to a bottom material 5 as is directed to the outside from the center of the shelf structure 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a wax-like substance, and more particularly to a method for producing a wax-like substance by heating and melting a synthetic resin to be discarded (hereinafter referred to as waste synthetic resin). The present invention relates to an apparatus for producing a waxy substance.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 10-30611 discloses an apparatus for producing a waxy substance by heating a waste synthetic resin composed of a chain polymer such as polyethylene or polypropylene.
No. 8, for example. This device produces a waxy substance as follows. First, a waste wire coating made of a synthetic resin consisting of a chain polymer is burned inside the combustion part structure, and the synthetic resin is heated by the heat generated by the combustion to cause a pyrolysis reaction. The resin is melted to form a molten waxy substance. Next, the pyrolysis reaction of the molten wax-like substance is promoted by a catalyst such as platinum or copper inside the basket for promoting pyrolysis disposed below the combustion section structure. Then, the molten wax-like substance is stored in a receiving tank arranged below the basket for promoting thermal decomposition. Gases such as ethylene generated from the molten wax-like substance stored in the receiving tank and gas generated when the molten wax-like substance is thermally decomposed inside the pyrolysis promotion basket are introduced into the combustion unit structure After being returned (returned), it is used as combustion energy and thermal decomposition energy in the combustion section structure. The combustion part structure is
It has a bottom member having a discharge port in the center, and a shelf structure is arranged on the bottom member so that the shelf board is located on the discharge port of the bottom member. In the conventional shelf structure, an upper shelf made of a flat disc-shaped punched metal and a lower shelf made of an annular punched metal are supported on the inner wall of a bottom member of the combustion part structure by a support. It has a structure.
The synthetic resin such as a wire covering for disposal is melted into a molten wax-like substance while being placed on the shelf structure, and the molten wax-like substance is formed in the opening and the bottom of the shelf structure such as punching holes. The material falls from the basket for promoting thermal decomposition through the through hole of the material to the receiving tank.

[0003]

However, in the conventional manufacturing apparatus, the molten wax-like substance mainly produced by the heat generated by the combustion of the gas falls through the punching hole of the shelf board to the outlet of the bottom member. The punched holes of the shelf are reduced or blocked by the molten wax-like substance, so that the gas cannot be sufficiently discharged onto the shelf, and the combustion of the gas in the combustion unit cannot be continued. In particular, waste plastics that are relatively large in the form of film, sheet, or mesh, and whose molecular weight is so small that combustion cannot be maintained by self-combustion alone, when the combustion of gas cannot be continued, the thermal decomposition of plastics The reaction stops and no molten waxy material can be created.

An object of the present invention is to provide an apparatus for producing a wax-like substance capable of sufficiently supplying a combustion gas around a synthetic resin placed on a shelf structure.

Another object of the present invention is to provide an apparatus for producing a wax-like substance capable of sufficiently burning gas even at the outer peripheral portion of a shelf structure.

Another object of the present invention is to provide an apparatus for producing a wax-like substance which can reduce the variation in gas combustion on a shelf structure.

Another object of the present invention is to provide an apparatus for producing a wax-like substance which can prevent the molten wax-like substance from evaporating when flowing on the bottom member.

Another object of the present invention is to provide an apparatus for producing a waxy substance capable of producing a molten waxy substance from a synthetic resin processed into chips.

[0009]

An apparatus for producing a wax-like substance to be improved by the present invention is provided with an inlet for charging a synthetic resin composed of a chain polymer on an upper side and an outlet on a lower side. A combustion unit comprising a bottom member having, a synthetic resin being melted by heating a synthetic resin therein to cause a thermal decomposition reaction to form a molten wax-like substance and discharging the molten wax-like substance from an outlet, A shelf structure is provided on the bottom member of the combustion unit structure so as to cover the discharge port, and a storage tank is provided below the combustion unit structure and stores the molten wax-like substance. Then, the gas generated from the molten wax-like substance stored in the receiving tank is
The gas is supplied to the periphery of the synthetic resin on the shelf structure, and this gas is burned in the combustion portion constituting body, and the synthetic resin is heated by the heat.
Here, the wax-like substance is a substance produced by the production apparatus of the present invention, and is considered to be a low-polymerized synthetic resin composed of a chain polymer. Further, the molten wax-like substance is a substance in which the wax-like substance is melted. In the present invention, the main shelf on which the synthetic resin of the shelf structure is placed has a large number of through holes through which gas passes in the thickness direction, and the main shelf extends outward from the center. It has a shape that can approach the bottom member and form a gap between itself and the bottom member. In the manufacturing apparatus of the present invention, the molten wax-like substance generated on the main shelf flows to the peripheral edge of the main shelf due to the inclination of the main shelf, and then flows down to the bottom member of the combustion unit structure, and the bottom member is discharged. It flows through the outlet to the receiving tank. As described above, when the molten wax-like substance flows due to the inclination of the main shelf, the molten wax-like substance hardly flows down through many through holes of the main shelf. Therefore, according to the present invention, it is possible to prevent the through hole of the main shelf plate from being reduced or blocked by the molten wax-like substance as in the related art, and to have no variation around the synthetic resin on the shelf structure. Gas can be sufficiently extracted. As a result, the combustion of the gas in the combustion portion structure can be continued.

[0010] The shelf structure may be configured to further include an auxiliary shelf plate disposed between the main shelf and the bottom member with a space therebetween. The auxiliary shelf has an annular portion projecting outward from the peripheral edge of the main shelf and having a large number of through holes through which gas passes, and the annular portion extends outward from the center of the shelf structure. It may be configured so as to have a shape approaching the bottom member as going toward. In this case, the molten waxy substance produced on the main shelf is
Due to the inclination of the main shelf, it flows to the peripheral edge of the main shelf, and then flows down onto the auxiliary shelf, and further, due to the inclination of the auxiliary shelf, flows to the peripheral edge of the auxiliary shelf, and then flows down to the bottom member of the combustion unit structure, Flows to the receiving tank through the outlet of the reservoir. When such an auxiliary shelf is provided, gas can be positively supplied from the gap between the main shelf and the auxiliary shelf to the periphery of the synthetic resin on the shelf structure.

It is preferable to form an annular protrusion protruding upward around the outlet of the bottom member so that a certain amount of the molten wax-like substance can be stored in the bottom member. When such a protrusion is formed, the bottom member can be prevented from being heated to a high temperature by the heat in the combustion portion structure due to the molten wax-like substance accumulated in the bottom member. Therefore, it is possible to prevent the molten wax-like substance from evaporating when flowing on the bottom member. In order to prevent such vaporization, a cooling means for cooling the bottom member may be provided.

In order to positively melt the synthetic resin, it is preferable to process the synthetic resin into chips. However, when the synthetic resin is processed into a chip shape, the synthetic resin may fall through the through holes of the main shelf and the auxiliary shelf. Therefore, in such a case, a large number of upward extending from the main shelf and the auxiliary shelf so as not to block a large number of through holes respectively formed in the main shelf and the auxiliary shelf of the shelf structure. An elongated rod-shaped member is fixed. The distance between the plurality of elongated rod members may be set so that the chip-shaped synthetic resin does not fill a gap formed between the elongated rod members. When a large number of elongated rod members are provided in this manner, the molten wax-like substance generated above the multiple elongated rod members and between the rod members is filled with a space and a perforated plate formed between the multiple elongated rod members. Through the through-hole, the synthetic resin can be prevented from dropping downward through the through-holes of the main shelf and the auxiliary shelf.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic sectional view of an apparatus for producing a wax-like substance according to an embodiment of the present invention. As shown in this figure, the apparatus for producing a wax-like substance includes a furnace 1
And a duct 2 and a chimney 3 located above the furnace section 1 and a tank section 4 located below the furnace section 1. The furnace section 1 has a combustion section constituting body 5 and an air balancer 7. The combustion part constituting body 5 has a cylinder 5a and a bottom member 5b located below the cylinder 5a. The cylindrical body 5a is made of a cylindrical body such as an expanded metal having a large number of holes for introducing air on its side, and the upper opening is charged with a synthetic resin made of a chain polymer into the combustion part constituting body 5. The input port 5a1 is formed. The bottom member 5b includes a bowl-shaped portion 5c,
A cylindrical portion 5d communicating with the inside of the bowl-shaped portion 5c;
d and a plurality of air balancer supports 5e extending radially in the radial direction of the cylindrical portion 5d. The air balancer support 5e is formed in a plate shape, and the lower end of the air balancer 7 is engaged and supported on the outer end. The furnace unit 1 is supported on the storage tank 15 by disposing the air balancer support 5e on the storage tank 15 of the tank unit 4 via the buffer spacer S.
A discharge port 5f for discharging the molten wax-like substance in the combustion part structure 5 is formed below the bowl-shaped portion 5c in the bowl-shaped portion 5c of the bottom member 5b. Around the outlet 5f,
An annular protruding portion 5h is formed to protrude upward so that a certain amount of the molten wax-like substance can be stored in the bottom member 5b. When such a protrusion 5h is formed, the molten wax-like substance accumulated in the bottom member 5b causes the bottom member 5h.
It is possible to prevent b from being heated to a high temperature by the heat in the combustion part constituting body 5. Therefore, it is possible to prevent the molten wax-like substance from evaporating when flowing on the bottom member. Also,
In order to prevent such vaporization, a cooling means for cooling the bottom member may be provided. A shelf structure 8 on which a synthetic resin is placed is arranged on the bowl-shaped portion 5c so as to cover the outlet 5f.

FIG. 2 is a plan view of the shelf structure 8, FIG. 3 is a sectional view taken along the line III-III of FIG. 2, and FIG. As shown in each figure, the shelf structure 8 has a main shelf 8a, an auxiliary shelf 8b, a shelf support 8c, and a grip portion 8d, and is made of stainless steel. The main shelf 8a is arranged such that the bottom member 5b extends outward from the center.
And a large number of through holes 8e through which gas from the storage tank 15 passes in the thickness direction. Although FIG. 2 shows only a part of the large number of through holes 8e, the through holes 8e are formed over the entire main shelf 8a. In this example, the diameter of the conical bottom surface of the main shelf 8a is 900 mm, and the diameter of the through hole 8e is 2 mm.
0 mm, the pitch (distance between the center points) of the adjacent through holes 8e is 30 mm, and the angle θ at which the surface of the main shelf 8a intersects with the horizontal line is 7 degrees. Is preferably 4 to 12 degrees.

The auxiliary shelf 8b is formed in an annular shape.
The main shelf 8a and the bottom member 5b are arranged with a space therebetween. The auxiliary shelf 8b has an annular portion 8g that protrudes outward from the peripheral edge of the main shelf 8a and is exposed to the input port 5a1. A large number of through holes 8f through which gas from the storage tank 15 passes in the thickness direction are formed in the annular portion 8g. Although FIG. 4 shows only a part of the large number of through holes 8f, the through holes 8f are formed over the entire annular portion 8g. In addition, in the auxiliary shelf plate 8b of this example, in order to reliably form a large number of through holes 8f over the entire annular portion 8g, the through holes 8f are formed to a portion slightly inside the annular portion 8g. In this example, the outer diameter of the auxiliary shelf 8b is 1100 mm, the diameter of the through hole 8f, the pitch of the adjacent through hole 8f, and the auxiliary shelf 8b.
The angle at which the plane b intersects the horizontal line is the same as that of the main shelf 8a. The annular portion 8g is inclined so as to approach the bottom member 5b from the center of the shelf structure 8 to the outside. In this example, the entire auxiliary shelf plate 8b is inclined so as to approach the bottom member 5b from the center of the shelf structure to the outside.

The shelf support 8c has an upper body 8h disposed between the main shelf 8a and the auxiliary shelf 8b, and a lower body 8i disposed below the auxiliary shelf 8b. I have. Upper body 8
h is an annular frame 8j having a circular cross section, and a reinforcing portion 8l having a circular cross section, as shown in FIGS.
And four legs 8k. The four ends of the reinforcing portion 8l are joined to the inner peripheral portion of the frame 8j so as to divide the frame 8j into four equal parts in the circumferential direction. ), The upper ends of four legs 8k extending slightly to each other are joined. The frame 8j is welded to the lower surface of the main shelf 8a concentrically with the main shelf 8a, and the lower ends of the legs 8k are welded to the upper surface of the auxiliary shelf 8b so as to be arranged concentrically with the auxiliary shelf 8b. Have been. As shown in FIGS. 3 and 6, the lower body portion 8i has an annular frame 8m having a circular cross section, a reinforcing portion 8n having a circular cross section and extending radially in eight directions, and eight leg portions 8p. are doing. The eight ends of the reinforcing portion 8n are joined to the inner peripheral portion of the frame 8m so as to divide the frame 8m into eight equal parts in the circumferential direction. 8), the upper ends of eight legs 8p extending so as to slightly spread each other are joined. The frame 8m is welded concentrically to the upper body 8h on the lower surface of the auxiliary shelf plate 8b so as to correspond to the upper body 8h, and the lower ends of the legs 8p are placed on the bottom member 5c of the combustion unit structure 5. It is placed. Thus, the shelf support 8c supports both the main shelf 8a and the auxiliary shelf 8b so that they are concentrically arranged.

Returning to FIG. 1, the duct 2 disposed above the combustion section structure 5 has an inner wall 9, an outer wall 10, a synthetic resin inlet section 11, and a synthetic resin guide section 12, and has a combustion section. The exhaust gas discharged from the structure 5 is guided to the chimney 3. The inner wall 9 has a size in which the diameter dimension of the lower opening end 9a is larger than the diameter dimension of the upper opening of the combustion part structure 5,
The upper end 9b has a truncated conical cylindrical shape in which the diameter decreases as it goes upward so that the diameter of the chimney 3 slightly exceeds the outer diameter of the chimney 3. In addition, an opening 9 c communicating with the synthetic resin inlet 11 is formed in a lower portion of the inner wall 9. The outer wall 10 has a truncated cone shape surrounding the inner wall 9 so as to form an external air flow passage 13 between the outer wall 10 and the inner wall 9. The lower part of the outer wall 10 is provided with an external airflow passage 13.
Are formed so as to communicate with the outside air. A plurality of outside air outlets 3 a communicating with the outside air passage 13 and the chimney 3 are formed in a portion of the chimney 3 located inside the outside air passage 13. The outer wall 10 is formed with a hole 10b through which the synthetic resin inlet 11 penetrates. The synthetic resin inlet 11 has a cylindrical shape so that the synthetic resin can be introduced into the combustion basket 30 through the internal space surrounded by the inner wall 9 and the synthetic resin guide 12. The synthetic resin guide section 12 is provided with a plastic basket 30 for combustion provided from the synthetic resin inlet section 11.
It has an inverted frusto-conical cylindrical shape so that it can enter smoothly. The upper end of the synthetic resin guide portion 12 is connected to the lower end of the inner wall 9 so that a gap is formed between the combustion portion constituting member 5 and the air balancer 7 to slightly flow air. The upper end of the synthetic resin guide 12 and the lower end of the inner wall 9 are connected to the upper end of an outer wall 14 arranged so as to surround the furnace 1 and the storage tank 15 of the tank 4. ing. Thereby, the duct 2 is supported by the outer wall portion 14.

The tank section 4 has a structure in which a storage tank 15 and a sub-tank 16 are interconnected via a transfer pipe 17 and circulation paths 18a and 18b. The storage tank 15 is arranged below the combustion part constituting body 5. The storage tank 15 includes an inner container portion 15a and an outer container portion 1.
5b is connected by an annular upper wall portion 15c, and is supported by a plurality of scaffolding jacks J1 to J3 connected to the outer container portion 15b. Inner container part 1
5a has a cylindrical shape with an open upper end surface, and the furnace portion 1 is supported at its upper end portion via a buffer spacer S. Inside the inner container portion 15a, a molten wax-like substance dropped from the combustion portion constituting body 5 is stored. An opening 15d that connects the inner container 15a and the transfer pipe 17 is formed at a substantially central portion in the vertical direction of the inner container 15a. The outer container part 15b also has a cylindrical shape like the inner container part 15a. A heat retaining oil filling chamber 15e is formed between the outer container 15b and the inner container 15a. The oil for keeping heat at a predetermined temperature (about 400 ° C.) is filled in the heat-retaining oil filling chamber 15e so as not to harden the wax-like substance in the inner container portion 15a and to prevent the internal temperature difference from increasing. In the present invention, the temperature of the heat retaining oil and the combustion in the combustion part structure 5 are completely independent. For this reason, it is not necessary to change the temperature of the heat retaining oil regardless of what kind of combustion is performed in the combustion part structure 5. At the side of the outer container 15b, a heat-retaining oil filling chamber 1 is provided.
5e and the opening 15 which communicates with the circulation paths 18a and 18b
f, 15 g are formed.

The sub tank 16 has a tank body 19 and a lid 20. As shown in detail in FIGS. 7A and 7B, the tank body 19 has a structure in which an inner container portion 21 and an outer container portion 22 are connected to an annular upper wall portion 23. It is supported by a plurality of scaffolding jacks J4 to J6 connected to the container portion 22. The inner container portion 21 has a cylindrical shape with an open upper end surface, and includes a cylindrical side wall portion 21a and a bottom wall portion 21b. In addition,
A gas vent valve (not shown) for preventing the internal pressure from increasing is attached to the inner container 21. The molten wax-like substance is transferred from the storage tank 15 and stored in the inner container 21. An opening 21c that connects the inner container 21 and the transfer conduit 17 is formed at a substantially central portion in the vertical direction of the side wall 21a. As a result, the inner container 21 of the sub tank 16 is transferred via the transfer pipe 17.
And the inner container 15a of the storage tank 15 communicate with each other. An opening 21d is formed at the lower end of the side wall 21a, which is located on the side opposite to the opening 21c in the radial direction, for communicating the inner container 21 with the wax-like substance extracting tube 24. A cock CK is attached to the end of the wax-like substance take-out tube 24. By opening the cock CK, the molten wax-like substance in the inner container 21 can be taken out. The lower end of the side wall 21a (the end in contact with the bottom wall 21b) has an opening 21c.
It has a shape inclined while descending from the side toward the opening 21d side. The outer container part 22 also has a cylindrical shape similarly to the inner container part 21, and has a side wall part 22a and a bottom wall part 22.
b. A heat retaining oil filling chamber 25 is formed between the outer container part 22 and the inner container part 21. The temperature in the heat retaining oil filling chamber 25 is controlled by the inner container 21.
This is a temperature at which the wax-like substance is kept at a temperature lower than the ignition temperature of the wax-like substance (400 ° C. or lower). Openings 22c, 22 communicating with the heat retaining oil filling chamber 25 and the circulation paths 18a, 18b are provided in the side wall 22a of the outer container 22.
d is formed. Thereby, the circulation paths 18a, 18b
The warming oil filling chamber 25 of the sub-tank 16 and the warming oil filling chamber 15e of the storage tank 15 communicate with each other via.

As shown in FIG. 1, the transfer line 17 disposed between the inner container 15a of the storage tank 15 and the inner container 21 of the sub-tank 16 has on-off valves V1, V2. I have. By appropriately opening and closing the on-off valves V1 and V2, when the amount of the molten wax-like substance in the inner container portion 15a of the storage tank 15 becomes equal to or more than a predetermined amount, the wax-like substance is removed from the sub-tank 16. It is transferred to the inner container 21. This may be done manually, but can also be automated. In this case, the receiving tank 15 is provided with a liquid level sensor that emits a signal when the amount of the wax-like substance in the inner container portion 15a exceeds a predetermined amount.
, V2 may be control valves that open and close in response to a signal from a sensor.

The heat retaining oil filling chamber 15 of the receiving tank 15
e and the circulation paths 18a and 18b arranged between the heat retaining oil filling chamber 25 of the sub tank 16 have on-off valves V3 to V6. More specifically, the circulation path 18a located above the transfer pipe line 17 has on-off valves V3 and V4, and the circulation path 18b located below the on-off valves V5 and V6.
have. By appropriately opening and closing the on-off valves V3 to V6, oil can be circulated between the warming oil filling chamber 25 of the sub tank 16 and the warming oil filling chamber 15e of the storage tank 15. The temperature of the heat retaining oil in the two heat retaining oil filling chambers is adjusted by opening and closing the on-off valves V3 to V6. There is no means for actively heating the heat retaining oil. The storage tank 15 and the sub-tank 16 may be provided with inner container support walls for supporting the inner containers 15a and 21 in the heat retaining oil filling chambers 15e and 25, respectively.

Next, a method for producing a wax-like substance using the above-described production apparatus will be described. First, a film-shaped or mesh-shaped synthetic resin having a small molecular weight, which is composed of a chain polymer containing polyethylene as a main component, is charged into the combustor structure 5 and placed on the shelf structure 8. Then, the synthetic resin is ignited and burned. The synthetic resin is melted by the heat of this combustion to produce a molten wax-like substance. At the time of combustion, air enters the passage between the air balancer 7 and the combustion unit structure 5 from between the plurality of radially extending air balancer supports 5e as shown by the arrow A, and the air in the combustion unit structure 5 Is supplied with oxygen. At first, the synthetic resin is melted by heating due to the combustion of the synthetic resin itself. However, in such heating of the synthetic resin, gas generated from a molten wax-like substance described later is supplied into the combustion part constituting body 5. It is continued by burning. The generated molten wax-like substance is
Due to the inclination of the main shelf 8a, it flows around the main shelf 8a and then flows down onto the auxiliary shelf 8b. Then, the inclination of the auxiliary shelf 8b causes the bottom member 5b of the combustion section structure 5 to move from the auxiliary shelf 8b.
Flows down to the bowl-shaped portion 5c. When the molten wax-like substance flows due to the inclination of the main shelf 8a, it is difficult for the molten wax-like substance to flow downward through many through holes 8e of the main shelf 8a. Therefore, it is possible to prevent the through-hole 8e of the main shelf 8a from being reduced or blocked by the molten wax-like substance as in the related art, and the gas is sufficiently distributed around the synthetic resin on the shelf structure 8 without variation. Can be derived. As a result, the combustion of the gas in the combustion part structure 5 can be continued. The molten wax-like substance that has flowed down to the bottom member 5c accumulates to a certain amount in the bottom member 5b located outside the protruding portion 5h. Through the receiving tank 15. Exhaust gas generated by the combustion is discharged outside through the duct 2 and the chimney 3. At this time, as shown by an arrow B, air from the outside enters the outside air passage 13 through the outside air introduction holes 10a of the duct 2. This air dries in the process of ascending and enters the chimney 3 through the outside air outlet holes 3a as shown by the arrow C, and the chimney 3
Mixed with the exhaust gas. When the dried air is mixed with the exhaust gas, the odor of the exhaust gas is reduced.

The molten wax-like substance stored in the inner container 15a of the storage tank 15 is kept warm in the inner container 15a. At this time, a gas such as ethylene gas generated from the molten wax-like substance is supplied to the periphery of the synthetic resin on the shelf structure 8 as shown by an arrow D. This gas is burned in the combustion part structure 5, and the synthetic resin is heated by the heat.

When the molten wax-like substance falls into the receiving tank 15 and the amount of the molten wax-like substance in the inner container part 15a of the receiving tank 15 exceeds a predetermined amount, the on-off valves V1, V2 is opened and the wax-like substance is transferred to the inner container 21 of the sub-tank 16. The molten wax-like substance is kept at a temperature lower than the ignition temperature of the molten wax-like substance (400 ° C. or lower) by the oil in the heat retaining oil filling chamber 25 in the inner container portion 21 of the sub tank 16. In this example, the temperature was kept at 300 ° C. Sub tank 1
When the amount of the molten wax-like substance in the inner container 21 of FIG. 6 becomes a certain amount or more, the cock CK attached to the wax-like substance take-out tube 24 is opened to release the molten wax-like substance in the inner container 21 to the outside. I just need to take it out. If the taken molten wax-like substance is cooled and cured, a wax-like substance can be obtained.

In order to enhance the combustion efficiency of the synthetic resin composed of the chain polymer, it is preferable that the synthetic resin is pulverized into chips and charged into the combustion part. FIG. 8A is a sectional view of a shelf structure 38 suitable for use in such a case, and FIG. 8B is a partial plan view of the shelf structure 38.
The shelf structure 38 shown in this drawing is similar to the shelf structure 8 shown in FIG. 2 except that a number of elongated first rod members 31 and second rod members 3 are provided.
.. Are formed. FIG. 8A
And a second rod-shaped member 32
Are formed over the entire region indicated by the alternate long and short dash line, although most of them are omitted. The first rod-shaped member 31 ...
Extends from the main shelf 8a toward the input port 5a1 so as not to block a large number of through holes 8e... The dimensions are set so as not to fill the space formed between the members 31. The second rod members 32 are also the first rod members 31.
Similarly, the plurality of through-holes 8f extend from the main shelf 8a toward the inlet 5a1 so as not to block the through-holes 8f. 2
Are set not to fill the space formed between the rod-shaped members 32. The gathering portion of the second rod-like members 32 is formed so as to surround the gathering portion of the first rod-like members 31 at a distance from the gathering portion of the first rod-like members 31. Thus, the rod-shaped members 31... And the second rod-shaped members 32
Are provided, the rod-shaped members 31 and the second rod-shaped members 32 are provided.
The molten wax-like substance generated above and between the rod-shaped members is formed in the space formed between the rod-shaped members 31 and the second rod-shaped members 32 and the through holes 8e of the main shelves 8a and 8b.
, 8f, and flows into the receiving tank 15.

In each of the above examples, the main shelf 8 of the shelf structure is used.
a has a conical shape, but the main shelf may have a shape approaching the bottom member from the center of the shelf structure toward the outside, and may have a polygonal cone shape or a curved shape. It does not matter.

In the above example, the shelf structure is the auxiliary shelf 8
Although b is provided, the auxiliary shelf need not necessarily be provided.

[0028]

According to the manufacturing apparatus of the present invention, the molten wax-like substance generated on the main shelf flows to the periphery of the main shelf due to the inclination of the main shelf, and then flows down to the bottom member of the combustion section structure. Flows to the receiving tank via the outlet of the bottom member. As described above, when the molten wax-like substance flows due to the inclination of the main shelf, the molten wax-like substance hardly flows down through many through holes of the main shelf. Therefore, according to the present invention, it is possible to prevent the through hole of the main shelf plate from being reduced or blocked by the molten wax-like substance as in the related art, and to have no variation around the synthetic resin on the shelf structure. Gas can be sufficiently extracted. As a result, the combustion of the gas in the combustion portion structure can be continued.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of an apparatus for producing a wax-like substance according to an example of an embodiment of the present invention.

FIG. 2 is a plan view of a shelf structure used in the apparatus for producing a wax-like substance shown in FIG.

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIG. 4 is a rear view of a shelf structure used in the apparatus for producing a wax-like substance shown in FIG. 1;

FIG. 5 is a plan view of the upper part of the shelf structure used in the wax-like substance manufacturing apparatus shown in FIG.

6 is a plan view of a lower body portion of the shelf structure used in the wax-like substance manufacturing apparatus shown in FIG.

7A is a plan view of a sub-tank main body used in the wax-like substance manufacturing apparatus shown in FIG. 1, and FIG. 7B is a cross-sectional view taken along line BB of FIG. 7A.

FIGS. 8A and 8B are a cross-sectional view and a partial plan view of a shelf structure used in a wax-like substance producing apparatus according to another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 5 Combustion unit structure 5a1 Input port 5b Bottom member 8 Shelf structure 8a Main shelf 8b Auxiliary shelf 8e, 8f Through hole 15 Storage tank

Claims (5)

[Claims] An inlet for charging a synthetic resin composed of a chain polymer is provided on an upper side, and a bottom member having an outlet on a lower side is provided. The synthetic resin is internally heated to cause a thermal decomposition reaction. A combustion unit configured to melt the synthetic resin to produce a molten wax-like substance by discharging the molten wax-like substance from the discharge port; and covering the discharge port on the bottom member of the combustion unit configuration. And a storage tank that is disposed below the combustion unit structure and stores the molten wax-like substance, and the molten wax stored in the storage tank is provided. In a wax-like substance manufacturing apparatus, a gas generated from a substance is supplied around the synthetic resin on the shelf structure, and the gas is burned in a combustion portion structure and the synthetic resin is heated by the heat. The shelf The main shelf on which the synthetic resin of the structure is placed has a large number of through holes through which the gas passes in a thickness direction, and the main shelf is configured such that the bottom member extends outward from a center. And an apparatus for producing a wax-like substance having a shape capable of forming a gap between itself and the bottom member. 2. The shelf structure further includes an auxiliary shelf arranged between the main shelf and the bottom member at an interval therebetween, and the auxiliary shelf includes the main shelf. It has an annular portion that protrudes outward from the peripheral edge of the shelf and has a large number of through holes through which the gas passes, and the annular portion extends outward from the center of the shelf structure. The apparatus for producing a wax-like substance according to claim 1, wherein the apparatus has a shape approaching the bottom member. 3. An annular protruding portion that protrudes upward is formed around the outlet of the bottom member so that the molten wax-like substance can be stored in a certain amount in the bottom member. The apparatus for producing a waxy substance according to claim 1, wherein: 4. The wax-like substance according to claim 1, further comprising cooling means for cooling the bottom member so that the molten wax-like substance flowing on the bottom member does not evaporate. Manufacturing equipment. 5. The synthetic resin is processed into a chip shape, and the main shelf plate and the auxiliary shelf plate of the shelf structure do not block the plurality of through holes formed respectively. A plurality of elongated rod-shaped members extending upward from the main shelf and the auxiliary shelf are fixed, and a distance between the plurality of elongated rod-shaped members is such that the chip-shaped synthetic resin is formed of the plurality of elongated rods. 3. The apparatus for producing a wax-like substance according to claim 2, wherein the dimension is set so as not to fill a gap formed between the rod-like members.