JP3149761U - Shellfish processing system - Google Patents

Abstract

The present invention provides a shellfish processing system capable of improving processing efficiency, suppressing CO2 emission, reducing operation management labor, and durability capable of withstanding long-time operation. A desalting and cleaning apparatus 1 for washing shellfish with water, a crushing apparatus 3 for crushing marine organisms, a heating and drying apparatus 4 for heating and drying coarse fragments, and a moving bed type in a furnace chamber having a circular path in plan view. A resistance-type electric furnace 5 for firing the semi-fired small pieces by passing over the substrate, and a bagging device 7 for collecting and packing the calcium oxide obtained by the firing. [Selection] Figure 1

Description

  The present invention is a rotary moving floor electric furnace for marine shellfish or shellfish (animals with shells such as shellfish and shellfish), and the object (shellfish or shellfish) is treated as industrial waste. The present invention relates to a shell processing system that includes a firing furnace that obtains calcium oxide by high-temperature treatment (firing) of an object as well as a final disposal furnace.

  As can be seen in the shell mounds that remain in various places, when people eat shellfish, the shells have always been discarded as waste. Regarding the disposal of this shell, many people have been worried about the disposal method in the past. In recent years, research on how to use by-products after disposal that is effective for waste that has nowhere to go is progressing.

  For example, as a conventional vertical calcination furnace for producing shell lime, the raw material input pipe of the vertical lime baking furnace has a structure with no insertion part in the furnace, and the rotary seal part of the ore excavator part has a double structure and blown air What provided the piping for cooling provided with the adjustment mechanism of quantity is disclosed (for example, refer patent document 1).

Japanese Patent No. 3076432

However, the vertical lime firing furnace is a small self-contained lime firing furnace having a shell processing capacity of about 25 tons / day, and is a fixed bed type and cannot be continuously treated. Further, since the firing zone disposed in the furnace is fired while being kept at a high temperature, a residence time in the furnace of 7 hours is required, and it cannot be efficiently processed. In addition, since this type of firing zone usually uses combustion heat from oil or gas as a heat source, it is accompanied by CO ₂ emissions, and if the processing amount is increased, it will meet social demands such as future CO ₂ reduction targets. It becomes difficult to answer.

In other words, in order to process many shellfish every day, it is necessary to configure a continuous furnace from the processing capacity, but in the case of configuring this continuous furnace, in addition to the problem of improving the processing efficiency, the problem of suppressing CO ₂ emissions. In addition, there are problems such as reduction of operation management labor such as processing state and maintenance, and durability that can withstand long-time operation.

  The present invention is a shellfish processing system devised to solve the above problems, and adopts the following means (1) to (8).

(1) The shellfish processing system of the present invention is a shellfish processing system that continuously processes marine shellfish to produce calcium oxide O5.
A demineralization washing apparatus 1 for removing demineralized shellfish by removing the attached salt by washing the shellfish with water;
A crushing apparatus 3 for crushing demineralized shellfish to obtain coarse fragments,
A heating and drying device 4 that heat-drys the coarsely crushed pieces as a pretreatment before this treatment to obtain a semi-fired piece;
A resistance-type electric furnace 5 for firing a semi-fired piece on a moving bed type base 52 provided in a furnace chamber extending in a predetermined planar path as a main treatment to obtain calcium oxide O5 and incinerate other constituent materials; ,
It is characterized by comprising a bagging device 7 that collects calcium oxide O5 and seals it in a storage bag.

  Of the above-described configurations, at least a combination of the configuration of the desalting cleaning device 1, the coarse crushing device 3, and the resistance electric furnace 5 removes the adhesion of excess salts by desalting and makes the size and shape of shellfish uniform by rough crushing. By performing the heat treatment in the resistance type electric furnace 5 which is the main furnace, the “flicking phenomenon” at the time of heating can be prevented, and continuous long-time treatment can be performed. By providing the heating and drying device 4 in this configuration, shellfish can be reliably processed in continuous operation. Furthermore, by providing the bagging device 7, the obtained calcium oxide O5 can be stored in a good state.

  (2) In any one of the shell processing systems described above, the calcium oxide O5 discharged from the furnace chamber 51 is collected below or inside the circle of the circular path in plan view of the furnace chamber 51 of the resistance electric furnace 5. It is preferable to provide a cooling storage hopper 6 that cools in the collected state, and cool the calcium oxide O5 stored in the cooling storage hopper 6 to room temperature.

  By providing the cooling storage hopper 6 either inside or outside the circular path below the furnace chamber 51, the apparatus group until the calcium oxide O5 obtained by the heat treatment in the resistance electric furnace 5 is cooled can be made compact. Can be configured. In the embodiment described later, the cooling storage hopper 6 is provided at the center position in the plan view and is configured compactly together with the resistance electric furnace 5, but it may be provided at a position outside the circle in the plan view depending on the arrangement.

(3) In the shellfish processing system,
The resistance electric furnace 5 includes a furnace chamber 51 made of a refractory brick mainly composed of a heat-resistant furnace material, a base 52 having a circular path in plan view of a moving floor type in which a large number of base plates 520 are conveyor-connected, and a base 52 It is preferable to provide traction means for moving the furnace chamber 51 along the circular path of the base 52 by power traction. In this case, each base plate 520 has a shape surrounded by both side edges and straight edges of the partial arc as shown in FIG. 3, and a plurality of sheets are in close contact with each other at the straight edges, so that a circular path in plan view Configure. The shape is not limited to a perfect circle, and may be an ellipse, an ellipse, or a flat shape thereof.

  (4) In the resistance type electric furnace 5 of any one of the above shellfish processing systems, it is preferable that both the furnace chamber 51 and the base 52 are made of refractory bricks mainly composed of a heat-resistant furnace material. By configuring both of these with refractory bricks, the heating efficiency is improved and the moving bed furnace can be operated continuously for a long time. In particular, a hearth with good heating efficiency can be configured in a compact manner by connecting a plurality of narrow base plates 520 made of refractory bricks to form a circular path in plan view by connecting a plurality of base plates 520 so that the upper surface is a mounting surface. I can do it.

  (5) In the shellfish processing system, the crushing apparatus 3 is configured by arranging a pair or a plurality of rollers each having a plurality of protrusions fixed on the surface thereof in parallel shafts in each pair. While rotating, it is preferable to pass the desalted shellfish between each pair of rollers so as to roughly pulverize them to a predetermined size or less and to remove the moisture attached to the desalted shellfish.

(6) In any one of the shellfish processing systems, the bagging device 7 includes:
A lifting means 71 for pulling up the mouth of the containing bag P one by one;
A band-plate-shaped opening holding means 72 that suspends and holds the storage bag in an open state by spreading in a horizontal annular shape in the mouth portion of the storage bag P that has been lifted,
Supply means for supplying powdered calcium oxide O5 into the containing bag opened by the opening holding means;
Conveying means 74 for conveying a plurality of opening holding means while being suspended together with the containing bag;
A pair of horizontal sticker sealers 75 are provided so as to face both outer sides of the mouth portion of the storage bag after storage.
The sealer 75 then closes the mouth portion of the containing bag P after containing the calcium oxide O5 together with the opening holding means 72 in the bag from both sides facing the outside, and after removing the opening holding means 72, heats and stores it. It is preferable that the bag P be sealed.

  In the embodiment described later, the supply means 73 that is pushed out from the upper part and dropped is used as the supply means.

(7) In any one of the shellfish processing systems, the desalting / cleaning apparatus 1 includes:
A vertical cylindrical raw material hopper 11 that accommodates shellfish with seawater from the upper diameter inlet, and discharges it from the lower diameter outlet;
A cylindrical container 10 that communicates with the lower communication portion 101 below the raw material hopper 11 and extends obliquely upward from the lower communication portion;
A screw blade 12 that is continuously formed in a spiral around a rotation axis that is provided along the extending direction of the cylindrical container, and that conveys shellfish in the axial direction by rotational driving;
It has a plurality of injection nozzles 13 which are arranged in a ceiling part above the lower communication part of the cylindrical container and inject cleaning water into the inside.
The cylindrical container 10 is provided at a bottom portion below the lower communication portion, and is provided at a drain port 103 for discharging water in the cylindrical container, and at a bottom portion of an upper extension destination in the cylindrical container. And a discharge port 104 for discharging shellfish to the outside.
In these cases, the cleaning water W is stored and held at a constant water level in the container by keeping the amount of cleaning water sprayed from the spray nozzle 13 within a predetermined range by automatically adjusting the amount of drainage from the drain outlet 103.
Then, the shellfish with seawater supplied from the raw material hopper 11 is immersed in the washing water W stored in the cylindrical container 10 and conveyed upward in the extension direction while being rotated by the screw blades 12, and the conveyed shellfish after immersion. It is preferable that the shellfish be desalted by being discharged from the discharge port 104 to the outside after being washed by the spray nozzle 13 while being rotated by the screw blade 12 above the surface of the washing water.

  (8) In the shell processing system of (7), the screw blades 12 are each provided with a plurality of connecting plates 121 that connect between blade plates adjacent to each other in the rotation axis direction, and are fixed at equal intervals around the rotation axis. Each connecting plate 121 is preferably a flat plate that is inclined at both the axial side view and the axial sectional view with respect to the rotation axis direction and is arranged at a so-called twist angle.

  The shell processing system of the present invention has the above-mentioned means, a resistance type moving bed furnace, various devices for desalination, drying and fragmentation as pre-treatment thereof, and a bagging device as post-treatment. 7 is provided so that the objects can be mutually transported, enabling continuous automatic operation for a long time. Thus, it is possible to continuously produce calcium oxide O5.

In addition, because it is a moving-bed type resistance electric furnace 5, it does not involve CO ₂ emissions during operation of the furnace, eliminates the need for operation management such as thermal power adjustment, and addresses durability issues such that it can withstand long-term operation. It has become.

Explanatory drawing which showed the whole structure of the Example of this shellfish processing system. Side view explanatory drawing which showed the desalting washing | cleaning apparatus 1, the desalted substance storage hopper 2, and the crushing apparatus 3 of the Example of this shellfish processing system. The perspective explanatory view showing resistance type electric furnace 5 and cooling storage hopper 6 of the example of this shellfish processing system. Side view explanatory drawing which showed the heating drying apparatus 4, the resistance-type electric furnace 5, the cooling storage hopper 6, and the bagging apparatus 7 of the Example of this shellfish processing system.

    Hereinafter, an embodiment of the shellfish processing system will be described with each drawing shown as an example.

The shellfish processing system of an Example is a shellfish processing system which processes the marine shellfish or shellfish continuously, and produces calcium oxide O5, Comprising: Basically, it consists of the following structures (FIG. 1).
・ Desalination and washing device 1 to obtain salted shellfish by removing salt adhering to shellfish with water
・ Desalinated salt storage hopper 2 for storing desalted shellfish
・ Crushing device 3 to crush demineralized shellfish to obtain coarse fragments
-Heat drying device 4 (pretreatment device) that heat-drys coarsely crushed pieces at 500 ° C to 600 ° C to obtain semi-fired pieces
-The semi-fired piece is fired by passing through a moving bed type base in a furnace chamber having an internal temperature of 1,000 ° C to 1,600 ° C in a circular path in plan view to obtain calcium oxide O5 and other configurations Resistance electric furnace 5 (main furnace) for incinerating materials
-Cooling storage hopper 6 that cools while storing calcium oxide O5
A bagging device 7 that collects calcium oxide O5 and seals it in the containing bag
(Main points of the embodiment of this shellfish processing system)
This shellfish processing system is a raw material disposal system that uses shellfish or shellfish as a raw material, and is a system for obtaining calcium oxide O5. As a final disposal method for shellfish, continuous heat treatment at 1000 ° C. or more by a resistance type electric heating furnace The point is to perform (firing) and change to calcium oxide O5. Shellfish are changed to calcium oxide O5 by baking at a high temperature of 1000 ° C. or higher.

  The calcium oxide O5 finally obtained can be used as it is, and can be reused as a by-product as it is returned to nature or used as a raw material by adding something or changing its physical properties.

  In addition, a desalting and cleaning device 1, a crushing device 3, and a heating and drying device 4 for efficiently performing continuous heat treatment in the resistance electric furnace 5 are sequentially provided in a single plant as a pretreatment device group. One of the points is to perform the heat treatment by the resistance electric furnace 5 which is the main furnace after sequentially performing the salt process, the coarse crushing process, and the heat drying process for pretreatment.

  Furthermore, it is a new point that all the bagging devices 7 are provided in one plant, and a series of production systems are formed while controlling the temperature and moisture content by sequentially connecting them with a conveyor C.

  In particular, a resistance electric furnace 5 that does not require complicated equipment is used as the main furnace, and the object moves on a movable floor (base) in a circular path so that it can be operated continuously for a long time. It is novel in that it can be performed continuously and calcium oxide O5 can be obtained continuously.

(Desalination washing device 1)
The desalting washing apparatus 1 is an apparatus for removing (desalting) salt on the surface or inside by washing with water, and performs a desalting washing process by this apparatus. Specifically, as shown in FIG.
A vertical cylindrical raw material hopper 11 that accommodates shellfish with seawater (raw material shellfish O1) from the upper diameter inlet and discharges from the lower diameter outlet;
A cylindrical container 10 that communicates with the lower communication portion 101 below the raw material hopper 11 and that extends obliquely upward from the lower communication portion with a cylindrical internal space;
A screw blade 12 continuously formed in a spiral around a drive shaft 12S provided in the cylindrical container 10 and carrying shells obliquely upward along the axial direction by rotational drive of the drive shaft 12S;
A plurality of injection nozzles 13 that are disposed in a ceiling portion above the lower communication portion of the cylindrical container and inject cleaning water therein are provided.

  The cylindrical container 10 communicates with the lower communication portion 101 below the raw material hopper 11, and extends obliquely upward from the lower communication portion with a cylindrical internal space. Closed walls 102 are formed in the vicinity of both ends in the extending direction, and a cylindrical internal space is formed between the closed walls 102 at both ends so that the washing water and the raw shellfish O1 can be held therein. The blocking wall 102 is formed with a through-hole through which the drive shaft 12S passes in the center, and a bearing structure for rotatably supporting the drive shaft 12S is provided in the through-hole.

  The cylindrical container 10 is provided at the bottom below the lower communication portion 101, and is provided at the drainage port 103 for discharging the water in the cylindrical container 10 and the bottom of the upper extension destination in the cylindrical container 10, And a discharge port 104 for discharging shellfish in the container to the outside.

  In particular, a bottom portion is provided on the lower side of the inner space partitioned by the lower blocking wall 102, and a cylindrical shape for draining water after washing between the lower blocking wall 102 and the bottom portion. A drainage chamber is formed. The drainage port 103 is provided at the side of the drainage chamber, and a drainage valve for automatically adjusting the amount of drainage is interposed. Wash water flows into the drainage chamber from the through hole of the lower blocking wall 102, and the wash water excluding the raw material shells O1 is stored in the chamber and then drained. By automatically adjusting the amount of water stored in the drainage chamber and the amount of drainage from the drainage port 103, the amount of cleaning water sprayed from the spray nozzle 13 is kept within a predetermined range, so that the cleaning water W is stored and held at a constant water level in the container. .

  The drive shaft 12S is installed in the cylindrical container 10 so as to be rotationally driven in both directions by the motor 105 at a central position in a sectional view of the cylindrical internal space.

(Screw blade 12)
The screw blade 12 includes a blade plate formed in a spiral manner around the drive shaft 12S. The slats overlap in the same circle as viewed from the shaft end, and are continuously spaced apart at substantially equal intervals in the axial direction, and are integrally formed by torsional deformation with a constant curvature.

(Connecting plate 121)
A plurality of connecting plates 121 that connect between blade plates adjacent to each other in the rotation axis direction are fixed to the screw blades 12 in a substantially radial manner around the rotation axis at equal intervals. Each connecting plate 121 is a flat plate disposed at a so-called twist angle that is inclined in both the axial side view and the axial sectional view with respect to the extending direction of the rotating shaft 12S. The connecting plate 121 urges the shells to turn so that the washing water can reach the back side. The screw blade 12 conveys the raw shellfish O1 obliquely upward along the axial direction while rotating the raw shellfish O1 by the rotational drive of the drive shaft 12S. At this time, the connecting shell 121 rotates the raw shellfish O1 more and more reliably conveys upward. I am going to do it.

  Then, the raw material shellfish O1 with seawater supplied from the raw material hopper 11 is constantly poured into the cylindrical container 10 by the injection nozzle 13 and drained as appropriate by the drainage port 103 having a drainage valve as required. The washing water W is always in a certain range in the internal space. This washing water W immerses the raw shellfish O1 for a certain time.

  The spray nozzle 13 sprays the cleaning water W above the surface of the cleaning water onto the raw material shells O1 that has been immersed in the cleaning water W and carried upward in the extending direction. By performing the cleaning while being rotated by the screw blade 12, more efficient desalting cleaning is performed.

(First conveyor C1)
The 1st conveyor C1 is provided between the desalting washing | cleaning apparatus 1 and the desalination thing storage hopper 2, and conveys the washing shellfish O2 to an upper position. Specifically, as shown in FIG. 2, the first conveyor Ca is installed below the distribution port 104, and is inclined upward with a gentle gradient therefrom. Consists of a second conveyor Cb with claws provided at equal intervals and a substantially horizontal third conveyor Cc that is put into the raw material hopper 6. The first conveyor Ca, the second conveyor Cb, and the third conveyor Cc in this order. Then, the washed shellfish O2 after the desalting washing is continuously transported to the upper desalted substance storage hopper 2. Moreover, the water | moisture content of demineralized shellfish O2 is dropped by these upward conveyance.

(Desalinated matter storage hopper 2)
The desalted substance storage hopper 2 stores desalted shellfish O2 desalted by the desalting apparatus and adjusts the subsequent processing amount. The desalted shellfish O2 is taken into the main body from the cylindrical intake 21 and stored therein. A predetermined amount is discharged through a discharge valve 22 from a discharge nozzle 23 provided at the bottom of the mortar-shaped bottom of the mortar-shaped main body.

(Crushing device 3)
The crushing device 3 is a device for crushing the demineralized shellfish O2 to a size within a certain range to obtain a roughly shaped fragment O3 having a size smaller than a predetermined size and having no large protrusions. The crushing process is carried out. By setting it as the coarse fragment O3 of the maximum length below predetermined, the thermal efficiency in the resistance type electric furnace 5 which is a main furnace can be improved, and a continuous process can be performed. The coarsely crushed pieces O3 are, for example, arranged in coarse particles having a maximum length of around 2 cm and a maximum length of 4 to 5 cm and are discharged from the apparatus. Thereby, it is possible to prevent rupture, collapse, or fall in the furnace during transportation of the moving bed in the heating / drying apparatus 4 or the resistance electric furnace 5, or the occurrence of being caught in the gap between the base plates. In addition, when crushed through the crushing apparatus 3, most of the water of the shellfish after washing and desalting is removed.

  Specifically, as shown in FIG. 2, a pair or a plurality of pairs of rollers 32 composed of horizontal horizontal cylinders are installed so as to be parallel axes in each pair, and each motor 33 reverses in the opposite direction. Used by rotating. The demineralized shellfish O2 is put between a pair of driven rollers 32 from a cone-shaped throwing frame 31 having a diameter reduced downward, and the coarsely broken pieces O3 are discharged from the lower part between the rollers 32. Each columnar surface of each roller 32 has a weight-like projection with the radial direction at the top, which is randomly fixed over the front surface. By sandwiching the projections from both sides, the shells are surely below a certain level. Crush to size.

(Heat drying device 4)
The heat drying apparatus 4 is a pretreatment apparatus that obtains a semi-fired piece by heating and drying coarse crushed pieces as a pretreatment.

(Second conveyor C2, third conveyor C3)
The second conveyor C2 is provided between the coarse crushing device 3 and the heating and drying device 4, and horizontally conveys the coarsely crushed pieces O3. The third conveyor C3 is provided between the heating and drying device 4 and the resistance electric furnace 5, and horizontally conveys the semi-fired pieces. Further, in the furnace of the heating and drying apparatus 4, the coarsely crushed pieces O3 are conveyed by a heat-resistant moving bed. In this system, these transport routes are linear in plan view. These may be formed by the same conveyor belt.

(Resistive electric furnace 5)
Therefore, the resistance electric furnace 5 which is a main furnace in the present system has a higher processing temperature than the incinerator and a lower processing temperature than the melting furnace. This is a resistance electric furnace 5 positioned between these furnaces. This apparatus performs an electric baking process.

  The operation of the resistance electric furnace 5 is not a combustion using oil but a firing furnace that can contribute to the reduction of CO2 by adopting an electric furnace. Furnaces are called many types depending on their purpose, and commonly called incinerators, combustion furnaces, blast furnaces, melting furnaces and melting furnaces. Energy sources are roughly divided into oil, gas, electricity, (nuclear power, wind power, wave power, thermal power, hydropower, sun, etc.). An electric furnace is basically adopted as the main furnace of this treatment system, and automatic operation can be performed for a long time.

  The electric furnace itself is an extremely simple furnace combining an electric heater and a heat-resistant furnace material, and is characterized by a small number of complicated devices and a small number of parts. Therefore, maintenance such as maintenance is easy in terms of operation management, and it leads to cost reduction in all aspects such as work safety, quality control, process, time, and labor cost. Moreover, since the heat source is demanded for electricity, it will lead to cost reduction compared to social costs such as future CO2 reduction targets, and costs including maintenance costs and industrial waste costs for incinerators using oil and gas. In order to treat many shellfish every day, it is absolutely necessary to use a continuous furnace because of its processing capacity, and it is a furnace that can be operated automatically as a system. It is movable and has an operating temperature capacity of 1000 ° C to 1600 ° C to withstand long-term operation. Since a possible structure is required, it is fulfilled as a function.

  The shape of the furnace is such that a furnace chamber 51 is formed so as to cover both side walls and the ceiling of the base 52 having a circular path shape in plan view, and the semi-fired piece O4 moves along the circular path in the furnace chamber 51. ing. It is a moving bed type furnace body with a perfect circular shape in plan view as a shell firing furnace, and is configured as a resistance-type electric furnace that can be operated continuously, enabling uniform heat treatment and continuous treatment. .

(Specific configuration of resistance type electric furnace 5)
As shown in FIG. 3, the resistance electric furnace 5 is connected to a charging pipe 50 into which a semi-fired piece O4 is charged, and a furnace chamber 51 connected to the charging pipe 50 at a ceiling near one end and formed in a predetermined planar path shape. And a plurality of base plates 520 connected in a conveyor shape to form the predetermined plane path, and the base 52 on which the object is placed is powered to pull the furnace chamber horizontally in the predetermined path. Traction means for movement. Both the furnace chamber 51 and the base 52 are made of refractory bricks mainly composed of a heat-resistant furnace material.

(Furnace chamber 51)
The furnace chamber 51 covers both sides of the base 52 and the three surrounding surfaces of the ceiling surface. From the upper connection port 501 provided in the base end side ceiling to the discharge port 5h in the front part of the discharge plate 54, it extends in a circular shape in plan view along the base 52. The furnace chamber 51 has a partial circular shape in which only the portion of the discharge plate 54 is divided, and the tip is a discharge port 5h.

  A plurality of discharge plates 54 are fixed by radiation around a cylindrical shaft body arranged horizontally at equal intervals. By rotating the shaft body every intermittent time, the calcined calcium oxide O5 is wiped down into the discharge port 5h on the inner side in the plan view than the circular route in the plan view.

(Traction means)
The pulling means moves the semi-fired piece on the base 52 along the circular path over time from the vicinity of the upper connection port 501 that is the entrance part of the semi-fired piece to the discharge port 5h that is the exit part (circular movement). Let By moving in a circular path shape in plan view and firing while changing the arrangement angle according to the change in the path direction, the periphery of the object is heated evenly, and calcium oxide O5 is reliably obtained.

(Changing furnace temperature and speed adjustment)
The resistance electric furnace 5 includes temperature adjusting means for adjusting the furnace temperature between 1000 ° C. and 1500 ° C. by voltage displacement, and traction speed adjusting means for adjusting the traction speed of the traction means. These two means are used in appropriate combination. By combining the change in the furnace temperature by the temperature adjusting means and the change in the speed by the traction speed adjusting means, the processing capability of the resistance electric furnace 5 can be widened.
Calcium oxide O5 discharged from the furnace chamber 51 is collected by a mortar-shaped collector 54 provided below the circular center position of the furnace chamber 51 in a circular path in plan view of the resistance electric furnace 5. The collector 54 is open at the bottom and is piped to the cooling storage hopper 6 below.

(Cooling storage hopper 6)
The cold storage hopper 6 is a powder storage device that is pipe-connected from the collector 53 by a connection pipe C5 and has a ceiling and is substantially sealed, and is obtained in the process up to the resistance electric furnace 5 of the present system. A cooling and storing step of cooling to normal temperature while storing calcium oxide O5 is performed. Specifically, as shown in FIG. 3, the cooling storage hopper 6 is arranged in a circular path of the resistance-type electric furnace 5 in a circular path in a plan view or below the circle, and has a vertical cylindrical main body storage section 61. And a cooler 62 provided outside the cooling storage hopper 6 and communicated with the outer side surface of the storage unit 61, and always stores cooling air into the storage unit 61 while storing the calcium oxide O5 in the main body storage unit 61. Wipe off. It arrange | positions in the circle | round | yen downward of the circular path | route of planar view, and is comprised compactly by arrange | positioning integrally with the resistance type electric furnace 5 like FIG. As shown in FIG. 3, the main body storage unit 61 may be provided with a stirring plate 63 and stored while being stirred internally by the vertical axis stirring plate 63.

  A discharge valve 65 is interposed in the vertical cylindrical discharge nozzle 64, and the discharge valve 65 is configured to store a reservoir in the vicinity of the lower discharge section 64 when the storage amount in the storage section 60 exceeds a predetermined value. It automatically opens when the temperature falls below a predetermined temperature.

  A cooler 63 containing a fan and a heat exchanger is duct-connected at a position above the side of the cooling storage hopper 6. The calcium oxide O5 stored in the storage unit 61 is cooled to room temperature. By cooling to room temperature in the storage state, the bag can be safely packed without the thermal denaturation of the storage bag P in the subsequent bag packing process.

(Bagging device 7)
The bagging device 7 is a device that packs a predetermined amount of the cooled calcium oxide O5 stored in the cooling and storing step into the containing bag P so that it can be transported. Is called. As shown in FIG. 4, the lifting means 71 for pulling up the mouth portion of the storage bag P one by one, and spreading horizontally in the mouth portion of the lifted storage bag P, the suspension bag is suspended and held open. A band-plate-shaped opening holding means 72, a supply means 73 for extruding and dropping powdered calcium oxide O5 from the upper part into the accommodation bag opened by the opening holding means, and a plurality of opening holding means suspended together with the accommodation bag A conveying means 74 that conveys the container as it is, and a pair of horizontal rod-shaped sealers 75 that are opposed to both outer sides of the mouth portion of the accommodation bag after accommodation,
The sealer 75 crushes the mouth of the accommodation bag P after containing the calcium oxide O5 together with the opening holding means 72 in the bag from both sides of the outside, closes the mouth, removes the opening holding means 72, and then heats it to heat the accommodation bag P. Is sealed to form a sealed bag P2. The sealed bag P2 is transported by the final conveyor C6.

(Process of shellfish processing)
As a shellfish processing method by the processing system of the present embodiment, the following steps (a) to (f) can be listed in order. First, in order to minimize damage to the resistance electric furnace 5 (a), it is necessary to drop the salt contained in the raw material shells O1. Therefore, as the first step, a desalting and cleaning step is required by installing the desalting and cleaning device 1, and the raw shellfish O1 is desalted and cleaned by this device.

  (B) Next, as a means for preventing problems in the resistance electric furnace 5 during operation, resistance type electric furnaces are used to heat-treat shells of various sizes and shapes (especially washed shellfish O2) as uniformly as possible. When putting into the furnace of the furnace 5, it is necessary to make it a uniform size and shape. Therefore, it is necessary to apply a coarse crushing process to apply the size to the crushing apparatus 3 for crushing shellfish roughly. Moreover, by passing through this crushing apparatus 3, the dehydration process of shellfish that has undergone the desalting and washing process can be performed simultaneously.

  (C) Next, the shells that have passed through the crushing device 3 need to be dried and preheated by the heating and drying device 4. A preheating drying process of the heating and drying apparatus 4 is performed as a pretreatment process before entering the resistance type electric furnace 5 which is a main furnace. By performing a drying process at a temperature of about 600 ° C. with this apparatus, the thermal efficiency is improved, and the heat treatment time in the main furnace (resistance type electric furnace 5) is shortened. That is, heat drying by the heat drying apparatus 4 is an important process for increasing the processing capacity. The heating and drying apparatus 4 is also an electric furnace.

  (D) Then, in the resistance type electric furnace 5 which is the main furnace, an electric firing process is performed in which firing is performed in a range of 1000 ° C. to 1600 ° C. If it exceeds this temperature, it will enter the world of melting, and if it is below this range, it will become the world of an incinerator and its physical properties cannot be changed.

  (E) Calcium oxide O5 obtained by firing in the electrical firing process is hot, so it needs to be stored in a container and stored, and a cooling process in which a cooler is provided to cool the container to room temperature. . In the embodiment, this is performed as a cooling storage step by the cooling storage hopper 6.

  (F) The finished calcium oxide O5 has a high hygroscopic property and must be quickly packed in a resin bag in order to be regulated by the Safety and Health Act. For this purpose, a bagging process by the bagging device 7 is required.

  By having the above six steps in order, the processing process of this plant is taken. However, it is good also as what performs dehydration by a preheating drying process, or what performs a dehydration process during conveyance, without serving also as a dehydration process in a coarse crushing process. In addition, even when the bagging process is omitted, calcium oxide O5 can be obtained from the raw shellfish O1, and depending on the method of treating calcium oxide O5, it may be established as a shellfish processing method. In addition, it can also be used when processing freshwater shellfish. In this case, except for the desalting and washing process by the desalting and washing apparatus 1, at least a crushing process or a resistance electric furnace by the crushing apparatus 3 This is a processing method that includes the steps up to 5 for the electric firing step.

(Operation of the plant of the embodiment)
The shellfish treatment system of the present embodiment is a plant capable of continuous treatment using shellfish as a raw material, and the raw shellfish O1 is subjected to heat treatment at 1000 ° C. or higher in an electric furnace to be processed (baked) to obtain calcium oxide O5. It has become. Moreover, as a main furnace, heat treatment is carried out while moving in a circular path with a resistance electric furnace 5 that does not require complicated equipment, so that continuous processing can be efficiently performed without causing a temperature drop or a large amount of carbon dioxide emission. In addition, automatic operation can be performed for a long time. In particular, in the apparatus group in which the desalting and cleaning apparatus 1 to the resistance electric furnace 5 are combined, it is a final disposal furnace in which industrial waste is not discharged by targeting shellfish, and calcium oxide O5 is continuously fired. It is a firing furnace.

  In addition, this processing system can use marine shellfish (including shellfish, shellfish and turtles) as processing objects in addition to marine shellfish. It can also be used in large facilities such as thermal power plants and nuclear power plants, seawater use facilities, and offshore structures.

  Among these, in particular, in facilities and apparatuses including a condenser for returning steam to fresh water, a large amount of cooling water is required, and seawater may be drawn into the seawater channel for use as the cooling water. The present processing system can be used by being incorporated in such equipment. That is, in such a facility, shellfish contained in the seawater adhere to the wall surface of the seawater channel, etc., and after a continuous operation time, the shellfish are piled up several times and eventually fall off from the stacked lower layer portion. In order to prevent the shellfish from accumulating at the bottom of the seawater channel and impairing the purpose of the mechanical equipment, it is preferable to use equipment incorporating the processing system of the present invention.

  Moreover, it is a processing system including a final disposal furnace for calcining calcium oxide O5, and industrial waste is not discharged. In this way, it is no longer a waste and can become one of the industrial resources, so that the industrial waste cost that has been spent so far becomes unnecessary. Instead of disposing as waste as in the past, by devising the waste, it is changed to a physical property that is not waste, and then returned to nature, thereby reducing the burden on the environment.

  The fired product by the present processing system is calcium oxide O5. In addition to restoring this as it is, it can be used for medical purposes due to its sterilization effect, used as an additive for food, feed, pet food, soil improvement fertilizer, anti-freezing material, and used as a detergent as a strong alkaline solution can do.

  Although the configuration of the present invention is as described above, the present processing system is not limited to the above-described embodiment, and extraction of components, deletion of some components, and replacement with alternative configurations are possible without departing from the spirit of the present invention. Various changes such as the change of the object, the size and time, and the adjustment of the driving speed can be performed. The present invention includes these modified processing systems.

DESCRIPTION OF SYMBOLS 1 Desalination washing apparatus 10 Cylindrical container 103 Drain outlet 104 Discharge port 105 Motor 11 Raw material hopper 12 Screw blade 121 Connecting plate 13 Injection nozzle 2 Desalted substance storage hopper 21 Intake port 22 Discharge valve 23 Discharge nozzle 3 Crushing apparatus 31 Input frame 32 Roller 33 Motor 4 Heating and drying apparatus 5 Resistance type electric furnace 50 Input pipe 51 Furnace room 52 Base 53 Collector 54 Scraper 6 Cooling storage hopper 61 Main body storage part 62 Cooler 63 Rotary blade 64 Discharge nozzle 65 Discharge valve 7 Bag Stuffing device 71 Lifting means 72 Opening holding means 73 Supply means 74 Transport means 75 Sealer C Connecting portion C5 Communication pipe F Fan O Shellfish P Storage bag W Washing water

Claims (8)

A shell processing system that continuously processes marine shells to produce calcium oxide,
A desalting and cleaning device that removes adhering salt by washing the shellfish to obtain desalted shellfish,
A crushing device for crushing demineralized shellfish to obtain coarse fragments,
A heating and drying apparatus for drying the coarsely crushed pieces to obtain semi-baked pieces;
A resistance-type electric furnace that fires a semi-fired piece on a moving bed type base provided in a furnace chamber extending in a predetermined planar path shape, obtains calcium oxide and incinerate other constituent materials,
A shellfish processing system comprising a bagging device that collects calcium oxide and seals it in a storage bag.   A cooling hopper that cools in a state in which calcium oxide discharged from the furnace chamber is collected and stored below the circular path of the resistance-type electric furnace in a circular view in plan view is stored in the cooling hopper. The shellfish processing system of Claim 1 which cools calcium oxide to normal temperature.   A resistance electric furnace is a furnace room made of refractory bricks, which mainly consists of a heat-resistant furnace material, a base of a moving floor type circular path with many base plates connected to a conveyor, and the base in the furnace chamber. The shellfish processing system according to claim 1, further comprising a pulling unit that pulls and moves along a circular path.   The shellfish processing system according to claim 1, wherein both the furnace chamber and the base have a heat-resistant furnace material as a main constituent material.   The crushing device is composed of a pair or a plurality of rollers each having a plurality of protrusions fixed on the surface thereof arranged in parallel shafts in each pair, and while rotating each roller, between each pair of rollers The shellfish treatment system according to any one of claims 1 to 4, wherein the shellfish processing system according to any one of claims 1 to 4, wherein the shellfish is crushed to a predetermined size or less by passing the desalted shellfish through, and water attached to the desalt shellfish is removed. The bagging device includes a band plate-shaped opening holding means for holding and holding the storage bag in an opened state by pulling up the mouth of the storage bag one by one and spreading it horizontally in the mouth, and holding the opening A supply means for supplying calcium oxide into the accommodation bag opened by the means, and a pair of horizontal bar sealers provided opposite to both outer sides of the mouth portion of the accommodation bag after accommodation,
The sealer crushes the mouth portion of the accommodation bag after containing calcium oxide from both opposite sides of the outer side to close the accommodation bag, and after removing the opening holding means, heats up and seals the accommodation bag. The shellfish treatment system according to any one of 5. The desalting and cleaning device is a vertical cylindrical storage hopper that accommodates shellfish with seawater from the upper diameter of the inlet and discharges from the lower diameter outlet, and the lower communication part below the storage hopper. A cylindrical container extending obliquely upward from the lower communication part, a rotatable screw blade axially provided along the extending direction of the cylindrical container, and continuously formed in a spiral around the axis; A plurality of injection nozzles arranged on the ceiling portion above the lower communication portion of the container to inject cleaning water into the interior;
The cylindrical container is provided at the bottom below the lower communication part, and is provided at a drain outlet for discharging water in the cylindrical container, and at the bottom of the upper extension destination in the cylindrical container. Equipped with a discharge port for discharging to
By automatically adjusting the amount of water discharged from the drain port, the amount of cleaning water sprayed from the spray nozzle is kept within a predetermined range, thereby holding the cleaning water at a constant level in the container.
The shellfish with seawater supplied from the storage hopper is immersed in the cleaning water in the cylindrical container and transported while rotating upward in the extension direction, and the transported shellfish after injection is sprayed above the surface of the cleaning water. The shellfish processing system according to any one of claims 1 to 6, wherein the shellfish is desalted by being discharged from a discharge port to the outside after being washed by a nozzle. A plurality of connecting plates connecting blade plates adjacent to each other in the rotational axis direction are fixed to the screw blades at equal intervals around the rotational axis, and each connecting plate has an axial side view and a rotational axis direction. The shellfish processing system according to claim 7, wherein the shell processing system is disposed so as to be inclined in both axial sectional views.

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