JPH11169826A - Garbage disposal vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the various problems predicted in a FRP by forming an upper vessel part, a lower vessel part and a partition plate from a cross- linked polymer molding of a metathesis polymerizable cyclic olefin, joining each vessel part with a flange and integrally molding a lib for attaching the partition plate to the inside of a treating vessel outer shell member. SOLUTION: The garbage disposal vessel is formed as the cross-linked polymer molding obtained by mixing a monomer liquid composed of the metathesis polymerizable cyclic olefin containing at least a metathesis polymerization catalyst based catalytic component and a monomer liquid composed of the metathesis polymerizable cyclic olefin containing a metathesis polymerization catalyst based activating agent component, pouring the raw material mixed liquid into a metallic mold to be subjected to polymerization and cross-linking reaction. And the upper vessel part 1, and the lower vessel part 2 are fixed with the flange 3 and 3', and further, the longitudinal lib 9 for attaching the partition plate and a flow-in port 12 for a waste water containing pulverized garbage are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal tank for crushing garbage discharged from a home kitchen and purifying wastewater containing the crushed material so that the wastewater can flow into a sewer. More specifically, the present invention relates to a garbage disposal tank that is lightweight, resistant to impacts, excellent in workability and durability, and hardly causes liquid leakage between internal tanks.

[0002]

2. Description of the Related Art FRP (polyester resin containing glass fiber) is a material that may be used as a material for a garbage disposal tank. However, in the case of FRP, when used in a septic tank (a device for treating human waste and / or domestic wastewater), it is accompanied by a defect that it is easily broken by pebbles or the like when installed and a deterioration in durability based on a filler. A drawback is known, and a similar problem can be considered when used mainly as a material for a garbage disposal tank installed underground. This problem is particularly remarkable when the garbage disposal tank is large. Therefore, at the time of installation, it is hard to break,
Moreover, a durable garbage disposal tank is desired.

Further, unlike the septic tank, the garbage disposal tank needs to efficiently purify an influent having a high purification load (that is, a high concentration of a substance to be decomposed). Intermediate liquid leakage, especially first tank (decomposition tank)
It is desired to avoid liquid leakage from the second tank (filter bed tank). However, in the case of using FRP as a material, it is difficult to sufficiently prevent liquid leakage between internal tanks due to insufficient dimensional accuracy.

[0004]

SUMMARY OF THE INVENTION It is a first object of the present invention to provide a garbage disposal tank which has solved various problems predicted by FRP. A second object of the present invention is to provide a garbage disposal tank which does not cause environmental problems in the production process and can be relatively easily molded by a reaction injection molding method. A third object of the present invention is to provide a garbage disposal tank that is lightweight, has sufficient strength against impact, and can sufficiently withstand internal and external pressure after installation. A fourth object of the present invention is to provide a garbage processing tank that does not cause liquid leakage inside the processing tank.

[0005]

Means for Solving the Problems The inventors of the present invention have made intensive studies to solve the above-mentioned problems, and as a result, have found that a crosslinked polymer obtained by polymerizing and cross-linking a metathesis polymerizable cyclic olefin in a mold. Garbage disposal tank composed of an upper tank part and a lower tank part, and a partition plate is also a garbage disposal tank made of the same molded article. When these flanges are fixed with a fastener and an adhesive at these joints, it is easy to manufacture, lighter in weight, more resistant to impact, and more durable. The present inventor has found that a waste treatment tank can be provided, and that a rib for attaching a partition plate is provided integrally with the inside of the outer shell member of the treatment tank to prevent internal liquid leakage, thereby achieving the present invention.

That is, the present invention provides: A garbage disposal tank comprising an upper tank part and a lower tank part, wherein the garbage disposal tank comprises (1) a monomer liquid A comprising a metathesis polymerizable cyclic olefin containing at least a catalyst component of a metathesis polymerization catalyst system. (Solution A) and a monomer liquid B (solution B) comprising a metathesis polymerizable cyclic olefin containing an activator component of a metathesis polymerization catalyst system
And a mixture of the raw materials is poured into a mold, and a polymerization and cross-linking reaction is carried out in the mold. A crosslinked polymer molded article obtained by (2) an upper tank part and a lower tank part (3) each tank section is fixed and assembled using a fastener and an adhesive at the flange section, and (3) each tank section is assembled by using a flange provided at a section to be joined to each other. 1.) A garbage disposal tank characterized in that ribs for attaching a partition plate are integrally formed on the inner wall surfaces of the upper tank section and the lower tank section. The garbage according to claim 1, wherein double vertical ribs are provided on the inner wall surfaces of the upper and lower tank portions so as to sandwich both sides of the partition plate at least at a partition plate mounting position closest to the inflow portion. 2. a processing tank, and (1) A monomer liquid A (solution A) composed of a metathesis polymerizable cyclic olefin containing at least a catalyst component of a metathesis polymerization catalyst system and a monomer liquid composed of a metathesis polymerizable cyclic olefin containing an activator component of a metathesis polymerization catalyst system B (solution B), the raw material mixture is poured into a mold, and a polymerization and cross-linking reaction is performed in the mold. 2. The partition plate for garbage disposal tank according to 2.

According to the invention, the tank capacity is 0.1-1.
5 m ^3, particularly preferably garbage treatment tank 0.7-7M ³ is provided.

Hereinafter, the present invention will be described more specifically. As the metathesis polymerizable cyclic olefin for forming the crosslinked polymer constituting the garbage treatment tank of the present invention, a metathesis polymerizable cycloalkene group is contained in a molecule.
Those containing up to two are used. Preferred are compounds having at least one norbornene skeleton in the molecule. Specific examples of these include dicyclopentadiene,
Tricyclopentadiene, cyclopentadiene-methylcyclopentadiene codimer, 5-ethylidene norbornene, norbornene, norbornadiene, 5-cyclohexenylnorbornene, 1,4,5,8-dimethano-
1,4,4a, 5,6,7,8,8a-octahydronaphthalene, 1,4-methano-1,4,4a, 5,6
7,8,8a-octahydronaphthalene, 6-ethylidene-1,4,5,8-dimetano-1,4,4a, 5
6,7,8,8a-octahydronaphthalene, 6-ethylidene-1,4-methano-1,4,4a, 5,6,7,
8,8a-octahydronaphthalene, 1,4,5,8-
Dimethano-1,4,4a, 5,8,8a-hexahydronaphthalene, ethylenebis (5-norbornene), and the like, and a mixture thereof can also be used. In particular, dicyclopentadiene or a mixture containing 50 mol% or more, preferably 70 mol% or more thereof is suitably used. Further, if necessary, a metathesis polymerizable cyclic olefin having a polar group containing a different element such as oxygen or nitrogen can be used as a copolymer monomer.

The molding by reaction injection molding using a cyclic olefin comprises a monomer liquid A (solution A) comprising a metathesis polymerizable cyclic olefin containing a catalyst component of a metathesis polymerization catalyst, and an activator component of the metathesis polymerization catalyst system. Is mixed with a monomer liquid B (solution B) composed of a metathesis polymerizable cyclic olefin containing, and the raw material mixture is injected into a mold, and polymerization and cross-linking reaction are performed in the mold.

[0010] The monomer liquid A (solution A) in the molding by the reaction injection molding method using a cyclic olefin contains a catalyst component of a metathesis polymerization catalyst system. As such a catalyst component, salts such as halides of metals such as tungsten, rhenium, tantalum and molybdenum are used, and a tungsten compound is particularly preferable. As such a tungsten compound, tungsten hexahalide, tungsten oxyhalide and the like are preferable, and more specifically, tungsten hexachloride, tungsten oxychloride and the like are preferable. Further, an organic ammonium tungstate or the like can be used.
It has been found that such a tungsten compound immediately starts cationic polymerization when added directly to a monomer, which is not preferable. Therefore, such a tungsten compound is previously suspended in an inert solvent such as benzene, toluene, chlorobenzene and the like, and a small amount of an alcohol compound and / or
Alternatively, it is preferable to use it after solubilization by adding a phenol compound. Further, as described above,
It is preferred to add about 1 to 5 moles of a Lewis base or chelating agent per mole of tungsten compound to prevent undesired polymerization. Such additives include acetylacetone, alkyl acetoacetates,
Examples thereof include tetrahydrofuran and benzonitrile. When a polar monomer is used, as described above, the polar monomer itself may be a Lewis base, and in some cases, the compound may have its action without adding any of the above compounds. As described above, the monomer liquid A containing the catalyst component
(Solution A) will have substantially sufficient stability.

On the other hand, the monomer liquid B (solution B) in the molding by the reaction injection molding method using a cyclic olefin contains an activator component of a metathesis polymerization catalyst system. The activator component is preferably an organometallic compound centered on an alkylated metal of Group I to Group III of the periodic table, particularly a tetraalkyltin, alkylaluminum compound, or alkylaluminum halide compound. Examples thereof include diethyl aluminum, ethyl aluminum dichloride, trioctyl aluminum, dioctyl aluminum iodide, and tetrabutyl tin. By dissolving the organometallic compound as an activator component in a monomer, a monomer liquid B (solution B) is formed.

Basically, a cross-linked polymer molded article can be obtained by mixing the solution A and the solution B and injecting the mixture into a mold. Since it is started, curing may occur while not sufficiently flowing into the molding die, and often causes a problem. Therefore, it is preferable to use an activity regulator.
As such a regulator, Lewis bases are generally used, and above all, ethers, esters, nitriles and the like are used. Specific examples include ethyl benzoate, butyl ether, diglyme and the like.
Such a regulator is generally used by being added to the solution (solution B) of the component of the activator of the organometallic compound. When a monomer having a Lewis base is used as described above, it can also serve as a regulator.

The amount of the metathesis polymerization catalyst system used is, for example, when a tungsten compound is used as a catalyst component, the ratio of the tungsten compound to the raw material monomer is as follows:
About 1,000: 1 to 15,000: 1 on a molar basis, preferably 1,500: 1 to 2,500: 1, and
When an alkyl aluminum is used as the activator component, the ratio of the aluminum compound to the raw material monomer is about 100: 1 to 10,000: 1, preferably 200: 1 to 1,000: 1 on a molar basis. Used. Further, as described above, the masking agent and the adjusting agent can be appropriately adjusted and used according to the amount of the catalyst system to be used by experiments.

In order to improve or maintain the properties of the crosslinked polymer in practical use, various additives according to the purpose can be further added to the molded product of the crosslinked polymer. Such additives include elastomers, fillers, reinforcing agents, antioxidants, heat stabilizers, pigments, light stabilizers, ultraviolet absorbers, lubricants,
Antistatic agent, flame retardant, foaming agent, softener, tackifier,
Plasticizers, release agents, deodorants, fragrances and extenders can be mentioned, and these can be used alone or in combination of two or more.

As a method of addition, it is possible to mix the raw material liquid beforehand, or as a third liquid immediately before polymerization,
Alternatively, it can be filled in a molding die in advance, and a method suitable for the type of additive is selected. In particular, a reinforcing agent such as glass fiber is generally set in a mold in advance, and a mixed liquid is poured into the mold.

A molded product of the cyclic olefin prepared by the reaction injection molding method can be obtained by adding another polymer in a monomer solution state. As such a polymer additive, an elastomer is effective in increasing the impact resistance of a molded product and adjusting the viscosity of a solution. Examples of the elastomer used for this purpose include a wide range of elastomers such as styrene-butadiene-styrene triblock rubber, styrene-isoprene-styrene triblock rubber, polybutadiene, polyisoprene, butyl rubber, ethylene propylene-diene-polymer, and nitrile rubber. Can be.

The material of a mold for molding the molded article for a food waste treatment tank of the present invention by a reaction injection molding method includes:
Examples include casting and spraying of steel, cast or forged aluminum and zinc alloys, electroforming of nickel and copper, and resin. The structure of the mold is simple enough because the pressure generated in the mold during molding is several kg / cm ² , which is extremely low as compared with other molding methods. Therefore, other molding methods, especially injection molding, It is simpler and cheaper to make.

Next, the structure of the garbage disposal tank of the present invention will be exemplarily described with reference to FIGS. The garbage processing tank of the present invention is composed of an upper tank part and a lower tank part.
FIG. 1 shows an example of the garbage disposal tank of the present invention.
A is a front view, and B is a side view. In FIG. 1, 1 is an upper tank and 2 is a lower tank. In FIG. 1, the upper tank 1 and the lower tank 2 are fixed by flanges 3 and 3 '. Although the wavy rib 4 is drawn in FIG. 1,
The number, shape and position can be selected according to the size of the garbage tank and the required mechanical properties.

[0019] 9 A in FIG. 1 represents the vertical ribs for partitioning plate mounting, 12 B represents an inlet of waste water containing crushed garbage. Outlet is not shown in B to hit the opposite side of the B.

In FIG. 1, three vertical ribs are shown for the partition plate extending over the upper tank portion and the lower tank portion, and one vertical rib is shown for the partition plate which partitions only the lower tank portion. The number can be selected according to the size of the garbage tank and the required mechanical properties.

In FIG. 1, a manhole 11 is provided, through which the final operation of the discharge of the partition plate and the internal equipment can be performed.

FIG. 2 is a cross-sectional view schematically showing a portion in which two tank portions are fixed using flanges (bolts 5 and nuts 6) and polyurethane adhesive 7 via flanges 3 and 3 '. The figure is shown.

FIG. 3 shows a portion in which two tank portions are fixed via flanges 3, 3 ′ by using fasteners (bolts 5 and nuts 6), a polyurethane adhesive 7 and a strip-shaped packing material 8. Is schematically shown in the cross-sectional view. In FIG. 3, a rubber packing is used as the band-shaped packing material 8.

FIGS. 4 and 5 show cross sections of a rib for attaching a partition plate. The rib 9 (1) has a plate-shaped cross section, and the rib 9 (2) has two ribs to form a partition plate. The ribs 9 (1) and 9 (2) have a cross section of a double vertical rib sandwiched between them.
).

The garbage disposal tank receives an impact force or a shearing force when it is installed in the ground, and may be broken. In addition, once installed in the ground, it is used for a long period of 10 to 20 years or more, and water pressure is always applied inside,
Durability is also required.

In order to meet such strict required characteristics, a method for fixing a flange provided at a joint portion between an upper tank portion and a lower tank portion, which will be described below, was intensively studied.

The most common method of fixing the flange is to use bolts and nuts as fasteners. However, in the case of the garbage disposal tank, it was found that the sewage in the garbage was incomplete after being buried in the ground, causing it to seep into the ground through the space between the flanges and cause contamination. In addition, a method of fixing with rivets is conceivable.However, although the work can be simplified and the process can be shortened, the same pollution problem as described above occurs and the strength is also insufficient, so that it can withstand severe use conditions at all. Was not.

Therefore, the inventors of the present application further studied these fixing methods and the use of an adhesive or an adhesive and a sealant.

Typical adhesives for plastics include polyurethane adhesives, epoxy resin adhesives,
An acrylic resin-based adhesive and a cyanoacrylate-based adhesive are exemplified.

When the adhesive properties of these adhesives were examined using the above-mentioned polymer molded article as a flat standard molded article, it was found that polyurethane-based and epoxy resin-based adhesives had particularly excellent strength. .

Therefore, these two types of adhesives are applied to the flanges of the upper and lower tanks of the garbage disposal tank composed of the above-mentioned polymer molded article, and the tanks are fastened with bolts and nuts. ,
After the curing reaction was sufficiently completed, it was subjected to a strength test. As a result, the garbage treatment tank for the polymer molded product was excellent in impact resistance, but was slightly soft (slightly small in tensile elastic modulus). It has been clarified that a hard adhesive which cannot follow the deformation of the polymer molded article during the test may cause a cracking problem.

In other words, an adhesive which is optimal for the septic tank of the polymer molded article and which can withstand strict use conditions may not be enough to have sufficient adhesive strength, and has sufficient flexibility to follow deformation. It has been found that it is necessary to have a polyurethane adhesive which particularly satisfies this requirement.

As the polyurethane-based adhesive, a commercially available polyurethane-based adhesive can be used. As a component of the polyurethane-based adhesive, as an isocyanate component, hexamethylene diisocyanate of an aliphatic isocyanate, isophorone diisocyanate of an alicyclic isocyanate, hydrogenated tolylene diisocyanate, hexahydrometaxylylene diisocyanate, dicyclohexyl diisocyanate, etc. Tolylene diisocyanate (TDI) of aromatic isocyanate, 3,3′-tolylene-4,4′-diisocyanate, diphenylmethane diisocyanate (MD
I), crude MDI, polymeric diphenylmethane diisocyanate, triphenylmethane triisocyanate, tolylene dimer, naphthalene diisocyanate, tris (4-phenyl isocyanate) thiophosphate, TDI trimer, meta-xylylene diisocyanate, trimethylpropane-1-methyl- Examples thereof include 2-isocyano-4-carbamate, polymethylene polyphenyl isocyanate, 3,3′-dimethoxy-4,4′-diphenyl diisocyanate, and phenyl ether triisocyanate.

Examples of the polyol component include low molecular weight polyols such as ethylene glycol and diethylene glycol.
1,4-butanediol, 1,6-hexanediol,
Examples of polyether polyols such as polyethylene glycol, polypropylene glycol, polymethylene glycol, and polyester polyols include polycaprolactone, polyesters from diols and dibasic acids, and the like.

These components serve as basic raw materials, and depending on the type of adhesive, catalysts, stabilizers, pigments, fillers, tackifiers and the like are used. Polyurethane-based adhesives composed of these main constituents can be roughly classified into two types depending on the use form, and attention must be paid to the use due to the limitation of pot life. The two-pack type is easier to use than the one-pack type. That is,
Examples of the two-pack type include a combination of an isocyanate compound and a synthetic rubber polyol, a combination of an NCO group-terminated prepolymer and a polyol, and a combination of an isocyanate compound and an OH group-terminated thermoplastic polymer. In addition, examples of the one-pack type include a combination of an isocyanate compound and water, and a prepolymer having an NCO group terminal and water.

Further, although the polyurethane adhesive originally has flexibility, it is apparent that the flexibility that can follow the deformation of the garbage disposal tank of the polymer molded product can be defined by the tensile elongation at break. became. That is, the tensile elongation at break is preferably at least 40%.

When a polyurethane-based adhesive is used in the present invention, it has particularly excellent performance in a garbage disposal tank for the polymer product. It has also been found that a band-shaped packing material of synthetic rubber can be sandwiched between the joints.

In addition to the above, in order to fulfill the function as a garbage disposal tank (treatment of waste water to make water as clean as possible), a short path (liquid leakage between internal tanks) is required in the treatment tank.
It is important to prevent For this reason, it is important that there is no gap between the partition plate for separating the decomposition tank, the filter bed tank, the sedimentation tank, and the like and the shell of the garbage disposal tank.

In the case of a normal method, it is conceivable that the outer shell member surface (the inner wall surface of the upper and lower tanks) and the partition plate are joined by overlaying by FRP or the like. Since the cross-sectional shape of the tank was often a curved surface, it was found that it was sometimes difficult to completely prevent liquid leakage even with an overlay.

Therefore, as a result of studying a method for preventing liquid leakage more completely, a planar rib for holding the partition plate is formed integrally with the garbage disposal tank, and the rib and the partition plate are connected to each other by a bolt nut or a nut. It has been found that this object can be achieved by using a rivet in combination with the urethane adhesive. The rib shape has a rib width (width of the flat portion of the rib) enough to fix the partition plate, and may have any thickness as long as there is no problem in strength.

It is more preferable to form the rib for holding the partition plate from both sides so as to sandwich the rib.
It is possible to obtain a structure in which the internal liquid leakage hardly occurs even by a larger external pressure or internal pressure.

The above-described method is sufficient for preventing liquid leakage between the inner tanks between the outer shell members (the inner wall surfaces of the upper tank section and the lower tank section) of the garbage disposal tank and the partition plate. However, since the partition plate is made of the same material as the outer shell member (the inner wall surface of the upper tank portion and the lower tank portion), the reliability against internal liquid leakage is improved.

The outer shell member of the garbage disposal tank may or may not have wavy ribs for preventing deformation due to earth pressure.

Hereinafter, the present invention will be described with reference to examples.
It should be noted that the examples are for explanation, and the present invention is not limited to these.

[0045]

EXAMPLES Example 1 (Mold) An aluminum mold incorporating the product shape shown in FIG. 1 was used. The dimensions of the garbage disposal tank in the examples were as follows. C = 1600 mm D = 500 mm E = 600 mm F = 820 mm FIG. 1 shows the wavy ribs 4 engraved in the aluminum mold. The dimensions of the wavy ribs 4 in the embodiment are 120 mm in width, and the flat part of the inner concave portion thereof. Was 70 mm in width and 15 mm in depth. In the lower tank portion in FIG. 1, the lower tank portion was provided over the entire circumference of the lower tank portion, and the upper tank portion was provided only on the ceiling portion of the upper tank portion. The width of the rib for holding the partition plate was 30 mm and the thickness was 4 mm.

(Monomer liquid) (Preparation of solution A) 28 parts by weight of tungsten hexachloride was added to 80 parts by weight of dry toluene under a nitrogen stream, and then t
A solution of 1.3 parts by weight of butanol dissolved in 1 part by weight of toluene was added and stirred for 1 hour.
A solution consisting of 8 parts by weight and 14 parts by weight of toluene was added, and the mixture was stirred for 5 hours under a nitrogen purge. Further, 14 parts by weight of acetylacetone was added. The stirring was continued overnight under a nitrogen purge while purging out the by-produced hydrogen chloride gas to prepare a polymerization catalyst solution.

Next, a monomer mixture consisting of 95 parts by weight of purified dicyclopentadiene (purity: 99.7% by weight, the same applies hereinafter) and 5 parts by weight of purified ethylidene norbornene (purity: 99.5% by weight, the same applies hereinafter) was mixed with ethylene containing 70
3% by weight of an ethylene-propylene-ethylidene norbornene polymerized rubber in mole%, and Ethanox 7 as an oxidation stabilizer
02 was added to the solution to which 2 parts by weight of the above was added so that the tungsten content was 0.01 M / liter to prepare a monomer solution (solution A) containing a catalyst component.

(Preparation of Solution B) 70% by mole of ethylene was contained in a monomer mixture consisting of 95 parts by weight of purified dicyclopentadiene and 5 parts by weight of purified ethylidene norbornene.
In a solution prepared by dissolving 3 parts by weight of ethylene-propylene-ethylidene norbornene polymerized rubber, was added trioctyl aluminum 85, dioctyl aluminum iodide 15,
A polymerization activator mixed solution prepared by mixing and preparing at a molar ratio of diglyme of 100 was added at a ratio of aluminum containing 0.03 M / liter to prepare a monomer solution B (solution B) containing an activator component.

(Molding) The aluminum mold for molding was heated to a cavity mold of 90 ° C. and a core mold of 60 ° C., and the mold was closed.
Using a RIM molding machine, equal amounts of the solution A and the solution B were collision-mixed and injected into the mixing head. 3.5 minutes after the liquid injection and filling, the mold was opened and the crosslinked polymer product was taken out. This molding was repeated several times.

[Examples 2 to 6] (Evaluation of adhesive in test piece) The cross-section of the crosslinked polymer molded article obtained in Example 1 was cut into a 25 mm wide strip to obtain a test piece. . Apply various adhesives shown in Table 1 below to a length of 25 mm from one end of the surface corresponding to the cavity mold side of this test piece, and bond the adhesive applied surfaces of the two test pieces together. After the adhesive was cured, the tensile shear strength was measured at a tensile speed of 5 mm / min. Table 1 shows the results.

[0051]

[Table 1]

The following adhesives of Examples 2 to 6 shown in Table 1 were used. Example 2: The main component of the polyol component is a polyether polyol composed of propylene glycol, and the main component of the isocyanate component is crude MD.
Adhesive which is I (diphenylmethane diisocyanate) Example 3: "Loctite 443" manufactured by Nippon Loctite Co., Ltd. Example 4: "Bond AG30" manufactured by Konishi Co., Ltd.
0 "Example 5: Alon Alpha No. 201 "Example 6:" Cemedine 605 "manufactured by Cemedine Co., Ltd.

[Examples 7 and 8] (Assembly) The upper and lower tanks of the crosslinked polymer molded article obtained in Example 1 were connected to the bolts and nuts and the epoxy resin-based adhesive or polyurethane through flanges. A test product for Examples 7 and 8 was obtained by fixing using a system adhesive. The product was fixed with four bolts and nuts or one of two types of adhesives using four partitions of the same crosslinked polymer molded product as the garbage disposal tank. The thickness of each of the partition plates is 4.0 mm, toward the outlet (Fig. 1 A right) from the inlet (the left side in FIG. 1 A), 700 mm (first partition), 1000 m
m (second partition), 1080 mm (third partition), 1380
mm (fourth partition) was attached to a partition plate mounting rib. Approximate position of the partition plate mounting ribs is shown in broken lines in FIG. 1 A.

The weight of this garbage disposal tank was 12 k in the upper tank.
g, the lower tank portion was 15 kg, and the four partition plates were 11 kg. By the way, if a food waste treatment tank of the same size is manufactured by FRP, the upper tank part is 16 kg, the lower tank part is 20 kg,
The weight of the partition plates was 13 kg.

Table 2 shows the results of evaluating the suitability of the adhesive for a rigidity test and a pressure test based on JIS A 4101 using the product.

[0056]

[Table 2]

The following adhesives of Examples 7 and 8 shown in Table 2 were used. Example 7: The terminal of polyether polyol mainly composed of ethylene glycol and propylene glycol is mainly TD
An adhesive mainly composed of a component containing isocyanate at both terminals by reacting with I (tolylene diisocyanate). Example 8: Adhesive in which the main component of the polyol component is a polyether polyol composed of propylene glycol, and the main component of the isocyanate component is crude MDI (diphenylmethane diisocyanate).

Example 9 A test product was prepared in the same manner as in Example 7 except that FRP was used as the partition plate. The product satisfied both the rigidity test and the durability test based on JISA4101, and there was no internal liquid leakage.

[Embodiment 10] An aluminum mold having the same dimensions as those of Embodiments 7 and 8 was used as the ribs for retaining the partition plate, except that double vertical ribs were used instead of the ribs of Embodiments 7 and 8. used. The cross-sectional shape of the double longitudinal rib is shown in FIG. A test product was assembled in the same manner as in Example 7 except that the upper tank portion and the lower tank portion, which were the molded products, were used. A rigidity test and a durability test based on JISA4101 were performed. There was no liquid leakage.

[0060]

According to the present invention, there is provided a food waste treatment tank obtained by a reaction injection molding method of a metathesis polymerizable cyclic olefin in the presence of a catalyst component and an activator component of a metathesis polymerization catalyst system. The garbage disposal tank of the present invention is easy to mold and assemble, is lightweight, is strong against impact, sufficiently withstands internal and external pressures, does not cause liquid leakage, and exhibits durability.

[Brief description of the drawings]

FIG. 1 shows an example of a garbage processing tank according to the present invention, wherein A is a front view, and B is a side view.

FIG. 2 is a cross-sectional view schematically showing a portion where two tank portions are fixed via a flange using a fastener and a polyurethane adhesive.

FIG. 3 is a cross-sectional view schematically showing a portion where two tank portions are fixed via a flange using a fastener, a polyurethane adhesive, and a band-shaped packing.

FIG. 4 shows an example of a vertical rib, and shows a cross section thereof.

FIG. 5 shows an example of a double vertical rib, and shows a cross-sectional view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper tank part 2 Lower tank part 3 Flange 3 'Flange 4 Corrugated rib 5 Bolt 6 Nut 7 Adhesive 8 Rubber packing material 9 Vertical rib for partition plate attachment 9 (1) Single vertical rib for partition plate attachment 9 (2) Partition Double vertical ribs for plate mounting 10 Surface of outer shell member 11 Manhole 12 Inlet of crushed garbage slurry

──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. ⁶ Identification code FI B29L 22:00

Claims (3)

[Claims] 1. A food waste treatment tank comprising an upper tank part and a lower tank part, wherein the food waste treatment tank is (1) a metathesis polymerizable cyclic olefin containing at least a catalyst component of a metathesis polymerization catalyst system. Liquid A (Solution A) consisting of the following and a monomer liquid B consisting of a metathesis polymerizable cyclic olefin containing an activator component of the metathesis polymerization catalyst system
(Solution B), and the raw material mixture is poured into a mold and polymerized and cross-linked in the mold to obtain a crosslinked polymer molded article, wherein (2) an upper tank portion and The lower tank portion has a structure in which the lower tank portion is joined via a flange provided at a portion to be joined to each other, and (3) each of the tank portions is fixed and assembled at the flange portion using a fastener and an adhesive. And
(4) A garbage disposal tank wherein ribs for attaching a partition plate are integrally formed on the inner wall surfaces of the upper tank section and the lower tank section. 2. A double vertical rib is provided on an inner wall surface of an upper tank portion and a lower tank portion so as to sandwich both sides of the partition plate at least at a partition plate mounting position closest to the inflow portion. Item 9. A food waste treatment tank according to item 1. 3. A monomer liquid A (solution A) comprising a metathesis-polymerizable cyclic olefin containing at least a catalyst component of a metathesis polymerization catalyst and a metathesis-polymerizable cyclic containing an activator component of a metathesis polymerization catalyst. It is characterized by comprising a crosslinked polymer molded article obtained by mixing a monomer liquid B (solution B) composed of an olefin, injecting the raw material mixture into a mold, and performing polymerization and crosslinking reaction in the mold. The partition plate for a garbage disposal tank according to claim 1 or 2.