JP3368211B2 - Shell processing equipment and shell processing method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shell processing facility and a shell processing method that enable reuse of a large amount of waste shells in shellfish cultivation.

[0002]

2. Description of the Related Art In recent years, oysters, scallops, abalone, and the like have been actively cultivated, but farmers are troubled with the disposal of a large amount of waste shells. The shell is mainly composed of calcareous material that wraps the soft shell of the shell and contains a large amount of calcium. Originally, the shell itself can be crushed to be used as fertilizer or the like.

[0003]

However, it is impossible to completely separate the shell and the edible soft body at the shipping stage, and a meat-like portion such as a scallop is inevitably attached to the discarded shell. Further, the meat quality is strongly adhered and cannot be removed by washing or the like, and it deteriorates with the passage of time to give off a rotten odor, which makes it unusable.
Up to now, oyster shells have been used as powdered fertilizers on a small scale, but there was no effective measure when they were disposed of in large quantities. As a treatment measure, for example, simply removing the meat quality by incineration may be considered as the removal of the meat quality. However, it is difficult to spread the combustion gas to every corner in the shells that overlap each other. If the whole is not evenly heated, the raw meat quality will remain in part. Considering practicality and economic balance, it is difficult to cleanly remove meat quality. Even if some of the raw meat quality remains, not only the problem of odor but also the problem that when it is fed to livestock feed, etc., the deteriorated and deteriorated substance becomes a carcinogen and adversely affects livestock. Also cause.

The present invention solves the above problems and enables large-scale processing, and cleanly changes the meat quality part such as shells and scallops to be discarded by simple processing equipment and processing method.
It is an object of the present invention to provide a shell treatment facility that can be removed and a shell treatment method.

[0005]

[Means for Solving the Problems] In order to achieve the above object,
The gist of the present invention according to claim 1 is to provide a treatment tank (1) having an opening and capable of charging shells through the opening, and supplying heated oil liquid to the shell filled in the treatment tank. An oil liquid supply device (2) that can be used, and a shell treatment facility. Here, the “processing tank” includes a container such as a tower, a tank, a container, etc., in addition to a tank type, a container capable of charging and filling shells. The term “shell” refers to the shells of oysters such as oysters and oysters, scallops, clams and clams, abalone, and turban shells that are mainly discarded by aquaculture. The gist of the present invention according to claim 2 is to immerse the shell in an oil solution in a heated state to carbonize the meat that adheres to the shell,
A method for treating a shell is characterized in that the oil solution is removed from the shell.

According to the first and second aspects of the invention, since the meat quality can be carbonized by supplying the heated oil liquid to the shell filled in the treatment tank, the meat quality can be denatured and removed cleanly, and the spoilage due to the meat quality can be eliminated. There is no odor. Since the shell is immersed in the heated oil solution, the oil solution can be heated to a high temperature, and the meat quality of the shell can be carbonized in a short time. Also, since the shell is immersed in the oil liquid to perform the carbonization operation,
It can process a large number of shells at one time.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The shell treatment equipment and the shell treatment method according to the present invention will be described in detail below. (1) Embodiment 1 FIG. 1 shows one embodiment of the shell treatment equipment (hereinafter, simply referred to as “treatment equipment”) of the present invention. Processing equipment is processing tank 1
An oil-liquid supply device 2, a solid-liquid separation device 3, and a drying device 4 are provided.

[0008] Shell processing equipment The processing tank 1 has a tank body 1a whose upper surface is open and which is covered with an upper lid 1b. The upper lid 1b is detachable so that the shell α of the shell can be put into the tank body 1a. An extraction nozzle 11 is attached to the lower end of the tank body 1a, and the shell in the tank can be sent to the solid-liquid separation device 3 by opening the valve 12.
A nozzle 13 that can take out only the oil liquid 20 is separately provided in the lower cone portion of the tank body 1a. The oil liquid 20 supplied from the nozzle 15 attached to the upper lid 1b stays in the tank and can flow out from the nozzle 13 through the shell α. A filter (screen mesh net) (not shown) is attached to the tank body 1a side to which the nozzle 13 is attached to prevent the shell α from flowing out.

The oil liquid supply device 2 supplies and dips the heated oil liquid 20 to the shell a filled in the processing tank 1. In this embodiment, the temperature of the heat exchanger 21 is 150 ° C.
The oil liquid 20 heated to 350 ° C. (preferably 200 ° C. to 350 ° C.) is pumped by the pump 22 to the nozzle 1 at the upper part of the processing tank.
It is introduced into the processing tank 5 and supplied into the processing tank 1. Then, the oil liquid 20 as the heat medium is directly immersed in the shell α and directly heated, and then taken out from the nozzle 13 at the lower part of the treatment tank, and again the heat exchanger 2
The oil liquid 20 heated at 1 is circulated and supplied to the processing tank 1 by the pump 22. The temperature of the oil liquid supplied to the processing tank 1 is set to 15
The oil liquid temperature is set to be within the range of 0 ° C to 350 ° C.
When the temperature is lower than ℃, the carbonization rate of flesh such as scallops, adductor muscles, and adductor muscles attached to the shell α becomes slow, while when it exceeds 350 ℃, the risk of boiling and ignition of the oil liquid 20 increases. . The liquid level of the oil liquid 20 in the processing tank 1 is managed so that the shell α can be maintained in the immersed state. Oil liquid supply source 23 as required
To the circulation pipe line 24 through the branch pipe 25 from the oil liquid 20. By supplying the high temperature oil liquid 20 into the processing tank,
Oil liquid 20 in which the shell α filled in the processing tank 1 is heated
And the carbonization of the flesh attached to the shell proceeds. The heat exchanger 21 may be a once-through type boiler or the like. By the way, the oil liquid 20 used in the present invention
Is preferably a heavy oil having a high boiling point of a petroleum mineral oil, a lubricating oil, or the like, rather than an animal or vegetable oil. In particular, a lubricating oil such as a mineral oil type engine oil is desirable. This is because the oil liquid 20 is circulated and used, and the temperature of the oil liquid 20 is raised to about 150 ° C. to 350 ° C. and used as the heat transfer oil. Mineral engine oils are suitable because they reduce frictional resistance and are thermally stable even under the above high temperature. The engine oil may be waste oil. After the meat material attached to the shell α is made into carbide by the high-temperature oil liquid 20, the oil liquid 20 in which the shell α is immersed is recovered from the nozzle 13 and returned to the oil liquid supply source 23.

The solid-liquid separation device 3 comprises a shell α and an oil liquid supply source 2
The oil liquid 20 which remains even if most of the oil is collected in 3 is separated. The shell α after carbonization of meat with the heated oil liquid 20 is sent to the solid-liquid separation device 3 together with the oil liquid 20 through the pipe 31 by opening the valve 12. A known screw decanter or the like is used for the solid-liquid separator 3. The shell α after carbonizing the meat may be taken out from the opening by opening the upper lid 1b. The oil liquid 20 separated by the solid-liquid separation device 3 is returned to the oil liquid supply source 23. The carbonized shell a separated by the solid-liquid separator 3 is discharged to the bucket 32, but the oil is still attached to the shell α, so that the shell α is dried. The solid-liquid separator 3 is not limited to that of this embodiment, and other solid-liquid separators can be used. A solid-liquid separation device is required to quickly remove the oil liquid 20 from the shell α, but in some cases this can be omitted.

As described above, the drying device 4 is a device for drying the shell α after the meat quality is thermally denatured by the oil liquid 20 and converted into carbon. This is because a large amount of the oil liquid 20 is attached to the shell a by simply opening the valve 12 and extracting the oil liquid 20 out of the processing tank. The drying device 4 is
The shell α separated by the solid-liquid separator 3 is further dried and dried, and then crushed to be used as a recycled product such as fertilizer. As the drying device 4, here, a known vertical moving layer aeration dryer 4a is used. Of course, the present invention is not limited to this, and other rotary kilns, rotary dryers, etc. can be used. Further, it may be replaced with a drying treatment such as sun drying.

Shell Processing Method Next, a shell processing method using the processing equipment having the above-mentioned configuration will be described. As the shell, it can be applied to various shells such as oysters and scallops. In these shells, which are discarded in large quantities in shellfish culture, even after the fruit is removed, fleshy parts such as scallops, adductor muscles, scars of the adductor muscle, and mantle remain strongly attached to the shells. By immersing the shell α in the heating oil solution 20, the meat quality attached to the shell becomes charred in a short time to carbonize and become a carbide.

In this embodiment, a shell α made of oyster will be described. First, the upper lid 1b is opened, and a predetermined amount of shell α is filled into the processing tank 1 from here. Then, the upper lid 1b
And close it to the specified temperature (here, 200 ℃
The oil liquid 20 heated to ˜350 ° C. is circulated and supplied into the processing tank 1, and the shell α is immersed in the oil liquid 20. FIG. 1 shows this state. The high-temperature oil liquid 20 serves as a heat medium to directly apply heat to the shell α to thermally denature the meat attached to the shell and carbonize it in a short time. The time required for carbonization of the meat quality α depends on the size of the seafood shell α, the meat quality attached to the seafood α, and the temperature of the oil liquid.
Even so, when the shell α is immersed in the oil liquid 20 at 270 ° C., the meat quality of the oyster attached to the shell α is blackened and carbonized in several tens of minutes. When it becomes a carbide, it no longer adheres to the shell α, and can be easily removed from the shell just by touching it.

After the carbonization of the meat attached to the shell α is completed, the oil liquid 20 in the processing tank 1 is drained. The oil liquid 20 is returned to the oil liquid supply source 23 using the pipe 24.

After that, in order to separate and remove the oil liquid 20 remaining on the surface of the shell, it is applied to the solid-liquid separator 3. After the meat quality is changed to carbide, the valve 12 is opened and the oil liquid 20 together with the shell α is guided to the solid-liquid separation device 3 through the pipe 31. The oil liquid 20 separated by the solid-liquid separation device 3 is returned to the oil liquid supply source 23. The shell α from which the oil liquid 20 has been removed is then dried. By applying it to the drying device 4, the oil liquid 20 is more completely removed from the shell α and a reusable shell α is completed.

[Effects] According to the shell treatment equipment and the shell treatment method configured as described above, even if there is meat quality such as adductor muscle that strongly adheres to the shell, it can be easily removed by carbonizing it. It solves the conventional problems that could not be easily removed by washing without difficulty. In the present invention, the shell α is submerged in the oil liquid heated to a high temperature, so that the shell α filled in the processing tank 1 can be uniformly heated. By burning or the like, a partially raw flesh state of meat containing protein as a main component remains, which may give off a rotten odor, but there is no fear of causing such a situation. The meat quality attached to the shell α is uniformly heated over the entire area and carbonized at about the same time. Further, unlike the combustion treatment, the method of submerging in liquid does not require a gas space for complete combustion, and the treatment can be performed even if a large amount of shells α are put in the treatment tank in a high density state. Mass processing can be done at a time without making the equipment large. In addition, since the heating oil solution 20 directly contacts the shell α by the immersion to transfer heat, the thermal efficiency is extremely good.
Further, the heated oil liquid 20 is oil, and unlike hot water obtained by boiling water, etc., it can be brought to a high temperature state, so that the flesh quality can be easily carbonized and the temperature difference can be made large to increase the heat transfer rate. The meat quality can be carbonized in a very short time. And even if the meat is strongly adhered to the shell, it becomes easy to separate and remove it from the shell when it becomes a carbide and loses its adhesion. The oil liquid used for the carburization treatment of the meat can be easily vaporized by the solid-liquid separation device 3, the drying device 4 or a drying process and easily removed from the shell α. The separated and removed shell α has no fleshy part and no longer gives off a rotting odor even if left as it is. Also effective as a measure against foul odors. Such shells contain a large amount of calcium and can be crushed and used as fertilizer, feed, etc., and can be effectively used for resource reuse. In the case of oyster, since it contains a large amount of lime (alkali content 48%) and is brittle and easily crushed, it is easy to crush and atomize, and it is easier to reuse. Unlike chemical fertilizers, it is suitable as a fertilizer for growing crops. Even if carbide is mixed into the shell by using the shell as feed, the carbide is carbonized and does not become a carcinogenic substance for livestock. If necessary, the carbonized material may be separated and removed from the shell using a vibration device or the like after the carbonization treatment.

(2) Embodiment 2 This embodiment is a shell processing facility as shown in FIG. A ring-shaped support plate 14 is fixed to the inner wall of the lower portion of the tank body 1a, and a net-like basket 91 that can be inserted into and removed from the tank body 1
Is supported. The shell 91 to be processed is packed in the basket 91 to carbonize the meat and improve workability. In addition, the oil liquid supply device 2 uses the heat exchanger 21 at 150 ° C. to 35 ° C.
The oil liquid 20 heated to 0 ° C. is guided by the pump 22 to the nozzle 15 at the upper part of the processing tank and is supplied into the processing tank. The oil liquid 20 as the heat medium is directly heated to the shell α contained in the storage basket 91, and then extracted from the nozzle 13 at the lower part of the processing tank,
The oil liquid 20 heated again in the heat exchanger 21 is circulated and supplied to the processing tank 1 by the pump 22.

The drying device 4 sends the hot air heated and dried by the heat exchanger 41 into the processing tank 1 from the gas supply port 16 by the blower 42. Hot air dries the shell α in the treatment tank, and the oil liquid 20 passes through the support plate 14 and drops to the lower portion of the tank main body, and a part thereof is entrained in the hot air. The hot air sent into the processing tank 1 goes out of the processing tank 1 through the gas outlet 17, circulates through the duct 43, exchanges heat with the heat exchanger 41 again, and passes through the blower 42 into the processing tank 1. It is sent and the shell α is dried again. Part of the hot air is extracted from the branch duct 51. The extracted hot air is subjected to a cyclone (not shown) to remove oil and the like, and then purified by a cleaning device installed as necessary and discharged as clean gas. The other configurations are the same as those in the first embodiment, and the description thereof will be omitted. The same reference numerals as in the first embodiment indicate the same or corresponding parts.

The method of treating shells is as follows.
Is placed in a storage basket 91, and the upper lid 1b is opened to fill the inside of the processing tank 1. Then, the upper lid 1b is closed, the oil liquid 20 heated to a predetermined temperature by a heat exchanger is circulated and supplied into the processing tank 1, and the shell α is immersed in the oil liquid 20. The high-temperature oil liquid 20 serves as a heat medium to directly apply heat to the shell α, thermally denature the meat quality attached thereto, and carbonize it. When the carburization of meat quality is completed, the valve 12 is opened and the oil liquid 2 in the processing tank 1
Remove 0. The oil liquid 20 may be drained using the pipe 24.
The oil liquid 20 is returned to the oil liquid supply source 23. Then, the drying process is performed while the shell α is placed in the processing tank 1. The hot air heated and dried by the heat exchanger 31 is sent into the processing tank 1 through the gas supply port 16 using the blower 32. By this drying operation, the oil liquid 20 adhering to the shell α is removed, and it becomes an oil drop and drops to the bottom of the tank. In addition, a part is removed along with hot air. Although the hot air is circulated through the duct 33, a part of the hot air is extracted and a cyclone is used to remove oil and the like, and if necessary, a wet dust collector absorbs the malodorous gas decomposed and vaporized from the meat and discharged as clean gas. Then, the extracted amount is replenished from the replenishment duct 44 and the drying process is continued. In this way, the dried shell α has an upper lid 1b.
Then, the storage basket 91 is picked up and taken out of the processing tank 1. In this shell α, the meat of the protein component is turned into charcoal and is cleanly removed. If this shell is crushed, it can be reused as fertilizer, feed, etc. as in the first embodiment. Since the meat quality has already been changed and removed as charcoal, no odor is emitted even if the charcoal is not purposely separated from the shell α. The shell processing equipment and the shell processing method configured as above obtain the same operation and effect as the first embodiment.

The present invention is not limited to those shown in the above-mentioned embodiment, but can be variously modified within the scope of the present invention depending on the purpose and application. The shape, size, model, etc. of the processing tank 1, the oil liquid supply device 2, the solid-liquid separation device 3, the drying device 4, etc. can be appropriately selected according to the application.

[0021]

INDUSTRIAL APPLICABILITY As described above, the shell treatment equipment and the shell treatment method of the present invention make it possible to cleanly change and remove the meat quality remaining in the fruit-bearing shell using a simple treatment equipment, and to perform a large-scale treatment once. It will be extremely useful as it becomes possible.

[Brief description of drawings]

FIG. 1 is an overall view of a shell treatment facility according to a first embodiment.

FIG. 2 is an overall view of a shell treatment facility according to a second embodiment.

[Explanation of symbols]

1 processing tank 2 Oil liquid supply device 20 oil liquid α shell

─────────────────────────────────────────────────── --- Continuation of the front page (56) Reference JP-A-9-122629 (JP, A) JP-A-50-36664 (JP, A) JP-A-5-138148 (JP, A) JP-A-11- 319772 (JP, A) JP-A-2-295473 (JP, A) JP-A-3-35762 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B09B 3/00-5 / 00 C05F 11/00 A23K 1/10

Claims (2)

(57) [Claims] 1. A processing tank (1) having an opening, into which shells can be charged, and an oil liquid supply device (10) capable of supplying heated oil liquid to the shells filled in the processing tank (1). 2), and a seashell processing facility comprising: 2. A method for treating a shell, comprising immersing the shell in an oil solution in a heated state to carbonize the meat that adheres to the shell and then removing the oil solution from the shell.