JP5472827B2 - Shell processing system and shell processing method - Google Patents

Description

The present invention is a rotating moving floor electric furnace for marine shellfish or shellfish (animals with shells such as shellfish and shellfish), and the object (shellfish or shellfish) is regarded as industrial waste. The present invention relates to a shell processing system including a firing furnace for obtaining calcium oxide by high-temperature processing (firing) of an object, and a shell processing method.

  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, conventionally, as a vertical lime calcining furnace for producing shell lime, the raw material input pipe of the vertical lime calcining 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.

I.e. in order to handle the daily number of shellfish it is necessary to configure a continuous operation system, when configuring the continuous operation systems, in addition to the problem of enhancing performance, Ya challenge emissions of CO ₂ In addition, there arises a problem of reducing the labor of operation management such as a processing state or maintenance, and a problem of durability enough to withstand a long time operation.

  The present invention has been invented to solve the above-described problems, and employs the following means (1) to (9).

(1) The shellfish treatment method of the present invention is a shellfish treatment method for obtaining calcium oxide O5 by continuously treating a marine raw material shellfish O1 or shellfish,
A demineralization washing step of removing the attached salt by washing the raw shellfish O1 with the washing liquid W to obtain a demineralized shellfish O2,
A crushing step of crushing demineralized shellfish O2 to obtain crushed O3,
A preheat drying step of heating and drying the coarsely crushed pieces O3 to obtain semi-baked pieces O4;
A moving bed type base is provided in a furnace chamber 51 of a resistance type electric furnace configured in a closed type chamber, and the semi-fired piece O4 is substantially circular while the semi-fired piece is hermetically baked on the base in the closed type furnace chamber. Or an electric firing step for obtaining calcium oxide O5 by inducing and advancing along an annular or reciprocating transport route, in order,
Furthermore, after the above-mentioned electric baking process, while storing the obtained calcium oxide in the cooling storage hopper 6 with a ceiling, a cooling storage process of blowing cold air and cooling,
The calcium oxide O5 cooled through the cooling storage process is accommodated in the accommodation bag P by a necessary amount and the bagging process for sealing the accommodation bag P is performed.

  The resistance type electric furnace is provided with an outer frame filled with sand seal sand along the periphery of the furnace chamber, and another outer frame continuous from the furnace chamber enters into the outer frame and has a sand seal structure. Is formed, and the electric firing step is performed while the inside of the furnace is configured in a sealed type.

(2) The shellfish processing system of the present invention is a shellfish processing plant that performs the shellfish processing method according to the above (1).
A demineralization washing apparatus 1 for removing the attached salt by washing the raw shellfish O1 with the washing liquid W to obtain a demineralized shellfish O2,
A crushing apparatus 3 for crushing demineralized shellfish O2 to obtain coarse fragments O3;
A heating and drying device 4 for heating and drying the coarsely crushed pieces O3 to obtain semi-baked pieces O4;
On the moving bed type base 52 provided in the furnace chamber 51 extending along a substantially circular path in plan view, the semi-fired piece O4 is fired while being transported along a predetermined transport path to obtain calcium oxide O5. A resistance electric furnace 5 for incinerating components other than
A closed hopper for storing objects (calcium oxide O5 obtained from raw shellfish O1 through demineralized shellfish O2, coarse crushing device O3, and semi-fired piece O4) and adjacent devices via a sealed tube between the devices A closed-type transport means that continuously transports between them, and a supply control device that controls the supply from the hopper to the transport means by the amount of storage in the hopper and the temperature of the stored material. It is characterized by performing continuous processing in the entire shellfish processing system by automatically supplying while controlling the amount of object from a hopper with a supply control device while operating.

(3) The heating and drying apparatus 4 and the resistance electric furnace 5 are connected by a sealed tube, and the first and second storage tanks are interposed. It is preferable to arrange the storage hopper 6 and connect the storage hopper 6 with a sealed tube. Among these, the first storage tank and the second storage tank are provided with first and second solenoid valves in the respective discharge holes 5h, and the other opens only when one of the solenoid valves is always closed. So that it is controlled. At the same time, by using the resistance electric furnace 5 as a closed furnace, the resistance electric furnace 5 and the surroundings can be completely sealed, and heating and incineration can be performed extremely efficiently.
The predetermined transport path in the above configuration is a “planar circular path”, and is preferably transported and fired around the substantially circular path.

Among the above-described configurations, the “planar substantially circular path” of the electric furnace in the present invention means that the path in the moving direction of the base 52 constituting the moving floor surface of the furnace chamber 51 formed by both sides and the ceiling is a plan view. A round shape, an elliptical shape, an oval shape, a flat shape obtained by flattening them in one direction or two or more directions, or one or more turns in a spiral so that the starting point and the ending point of any one of these circular shapes are shifted. Refers to a spiral path.
As a spiral path, for example, a plurality of circular circles of different sizes are concentrically combined inside and outside, each circular section is divided, the path is obliquely crossed to another adjacent circle, and the circular paths on the inner and outer circumferences are sequentially arranged Some of them are listed. In this case, the curvature of the circular path other than the divided part is constant, and the size of the diameter of the circular path when the path travels from the outer peripheral side to the inner peripheral side becomes a step with each divided / crossed part as a boundary. Become smaller. In addition, it means that the curvature is continuously increased at a constant rate.

  As described above, the combination of at least the desalting cleaning device 1, the crushing device 3 and the moving bed type electric furnace is combined so that continuous treatment is possible, thereby removing the adhesion of excess salts by desalting and the shellfish by crushing. Uniform in size and shape. As a result, during the heat treatment of the electric furnace as the main furnace (resistance electric furnace 5 in the embodiment), a “flicking phenomenon” (a phenomenon in which the heated shell and its contents are broken or ruptured and scattered) occurs. Can be prevented, and continuous long-time processing can be performed.

  In particular, the heating and drying device 4 is provided as a pretreatment device, and the primary heating is performed prior to the treatment of the resistance electric furnace 5 as the pretreatment. Thereby, shellfish can be processed reliably in continuous operation.

  In addition to the above, the obtained calcium oxide O5 can be stored in a good state by providing the bagging device 7 that collects the calcium oxide O5 and seals it in the accommodation bag.

  (4) In any one of the shell processing systems described above, a resistance electric furnace 5 that can be operated for a long time is adopted as an electric furnace, and the inside or outside of a circular path in a plan view of the furnace chamber 51 of the resistance electric furnace 5 Is provided with a cooling storage hopper 6 that collects and stores calcium oxide O5 discharged from the furnace chamber 51 and cools in the stored state, and stores the calcium oxide O5 stored in the cooling storage hopper 6 at room temperature. It is preferable to cool to.

  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. Further, 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 floor plan view of a moving floor type in which a large number of base plates 520 are connected to a conveyor, The base 52 may be traction-powered to include traction means for moving the inside of the furnace chamber 51 along a substantially circular path in plan view of the base 52.

(5) In the shellfish processing system,
Resistance electric furnace
A furnace chamber with a heat-resistant furnace material as the main component and a heating wire inside;
The floor of the furnace chamber is configured, and a movable floor base that rotates and moves in plan view,
An inlet for charging a semi-fired piece before incineration on the base in the furnace chamber;
A discharge hole 5h for discharging calcium oxide and components after incineration from the base,
A guide wall 511 that is fixed from above or from the side of the furnace chamber and guides the semi-fired piece on the base to the discharge hole 5h,
By rotating the base under the fixed guide wall 511, the semi-fired pieces put on the base from the inlet are discharged in the discharge hole 5h along the predetermined plane path by the guide wall 511 while being fired in the furnace chamber. It is preferable that the induction proceeds.

(6) In the shellfish processing system,
The input part to the base by the input port is near one edge of the plane of the base,
The discharge hole 5h from the base having the discharge hole 5h is near the rotation axis in the center of the base,
Further, it is preferable that the predetermined planar path of the electric furnace formed by the guide wall 511 is a circular spiral path that goes from the charging portion to the discharge hole 5h while circulating on the base.

  In the resistance type electric furnace 5 of any one of the shell 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.

  (7) In the shellfish processing system, the crushing device 3 includes a pair or a plurality of pairs of rollers 32 each having a plurality of protrusions fixed on the surface thereof arranged in parallel shafts, and each roller While rotating 32, it is preferable that the demineralized shellfish O2 is passed between each pair of rollers 32 so that the demineralized shellfish O2 is coarsely crushed to a predetermined size or less, and moisture attached to the demineralized shellfish is dropped.

  In the embodiment (FIG. 2), a pair of rollers 32 are arranged in parallel on a horizontal axis with a minute interval of 5 cm or less, and the rollers 32 are respectively driven to rotate in the direction of dropping shellfish sandwiched between the rollers 32. In the meantime, the cleaning shellfish O2 is dropped by a predetermined amount. The rollers 32 are not limited to a pair, and a plurality of pairs may be provided. On the surface of the roller 32, a plurality of substantially conical projections having a height of 1 cm to 3 cm are randomly arranged or spaced apart and arranged in a predetermined pattern. The crushing device 3 crushes the shellfish to a predetermined size or less by holding and crushing the raw shellfish after washing with the protrusions between the pair of rollers 32 and sandwiching them between the surfaces of the pair of rollers 32.

(8) The shell processing system according to any one of the above includes a bagging device 7 that collects calcium oxide O5 obtained by an electric furnace and seals the calcium oxide in a storage bag.
A lifting means 71 for pulling up the mouth of the containing bag P one by one;
An opening holding means 72 that suspends and holds the accommodation bag in an opened state by spreading in an annular shape in the mouth portion of the raised accommodation bag P;
Supply means 73 for supplying calcium oxide O5 by a predetermined amount into the containing bag P opened by the opening holding means;
Transport means 74 for transporting the plurality of opening holding means 72 to the collection position of the bag together with the containing bag P to which calcium oxide O5 is supplied and suspended;
It is preferable to include a sealer 75 having a horizontal bar-shaped heating portion provided so as to face both outer sides of the mouth portion of the storage bag P1 after storage and sandwich the storage bag.
Then, the sealer 75 sandwiches 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 opposite sides of the bag, crushes and closes the mouth, removes the opening holding means 72, and then heats it. It is preferable that the housing bag P be sealed.

  In the embodiment described later, a vertical cylindrical container having an enlarged upper portion is employed as the supply means 73 (FIG. 4), but various mechanisms may be employed without being limited to this configuration.

(9) In any one of the shellfish processing systems, the desalting washing apparatus 1
A vertical cylindrical raw material hopper 11 that accommodates the raw material shellfish O1 with seawater from the upper diameter enlarged inlet and discharges it from the lower diameter discharge hole 5h;
A cylindrical container 10 having an internal space 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 internal space 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.
These hold the washing water at a constant water level in the internal space by automatically adjusting the amount of washing water ejected from the ejection nozzle and the amount of drainage from the drain outlet.
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.

  In the above, the level of the cleaning water stored in the internal space of the container is kept within a certain range by adjusting either or both of the cleaning water amount and the drainage amount. In the embodiment described later (FIG. 2), the amount of washing water jetted from the jet nozzle 13 is kept within a predetermined range by automatically adjusting the amount of drainage from the drainage port 103, so that the washing water W is always kept at a substantially constant water level. It is stored and held as it is.

  Furthermore, in the shellfish processing system, 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 rotational axis direction, and are fixed at equal intervals around the rotational shaft. It is preferable that the flat plate is inclined at both the axial side view and the axial sectional view with respect to the rotation axis direction and arranged at a so-called twist angle.

  In the present invention, the above-mentioned means are taken, and a moving bed type electric furnace as a main furnace and various apparatuses for desalination, drying, and smashing as pre-treatments between the apparatus of the object and the apparatus. By providing all of them for internal transportation, long-term continuous automatic operation is possible. Thus, it is possible to continuously produce calcium oxide O5.

In addition, because it is a moving-bed type resistance electric furnace, the operation of the furnace is not accompanied by CO ₂ emission, operation management such as thermal power adjustment becomes unnecessary, and the durability problem of being able to withstand long-time operation has been addressed. It has become a thing.

Side view explanatory drawing which showed the whole structure of this shellfish processing system of Example 1 of this invention. Plan view explanatory drawing of this shellfish processing system of Example 1 shown in FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially broken explanatory view showing a resistance electric furnace 5 and a cooling storage hopper 6 in a shell processing system according to a first embodiment. Side view axial sectional explanatory drawing which showed the resistance type electric furnace 5 in the shellfish processing system of Example 1. FIG. FIG. 5 is a cross-sectional view taken along line AA in FIG. 4. FIG. 5 is a cross-sectional view taken along line BB in FIG. 4. FIG. 6 is a partially broken explanatory view showing a resistance electric furnace 5 and a cooling storage hopper 6 in the shellfish processing system of the second embodiment. Side surface axial sectional explanatory drawing which showed the resistance type electric furnace 5 in the shellfish processing system of Example 2. FIG. FIG. 9 is a cross-sectional view taken along the line CC in FIG. 8. Side view explanatory drawing which showed the whole structure of this shellfish processing system of Example 3 of this invention. Side view explanatory drawing which showed the structure to the desalting washing | cleaning apparatus 1, the desalted substance storage hopper 2, and the crushing apparatus 3 in the shellfish processing system of Example 3. FIG. Side view explanatory drawing which showed the structure to the heating drying apparatus 4, the resistance-type electric furnace 5, the cooling storage hopper 6, and the bagging apparatus 7 in the shellfish processing system of Example 3. FIG. The perspective explanatory view showing resistance type electric furnace 5 and cooling storage hopper 6 in the shellfish processing system of Example 3. FIG. The perspective explanatory view showing resistance type electric furnace 5 and cooling storage hopper 6 in the shellfish processing system of Example 4. FIG.

    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 preheating 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 shellfish O1) from the upper diameter inlet and discharges it from the lower diameter discharge hole 5h;
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.
(Other forms of heat drying apparatus 4)
(First storage tank, second storage tank)
The heating / drying apparatus 4 and the resistance electric furnace 5 are connected by a sealed pipe and two storage tanks, a first storage tank and a second storage tank, are interposed. The first storage tank and the second storage tank are provided with first and second solenoid valves in the respective discharge holes 5h so that the other one can be opened only when one of the two solenoid valves is closed. It is controlled. At the same time, by using the resistance electric furnace 5 as a closed furnace, the resistance electric furnace 5 and the surroundings can be completely sealed, and heating and incineration can be performed extremely efficiently. Specifically, when the first solenoid valve is opened, the second solenoid valve is closed immediately before the first solenoid valve is opened, and the semi-baked O4 is fed into the first storage tank through the first solenoid valve released at the top. Next, when the second electromagnetic valve is opened, the first electromagnetic valve performs a closing operation before that, and the semi-fired piece O4 is sent in a sealed state from the upper part of the first storage tank to the lower furnace chamber.
The predetermined transport path in the above configuration is a “planar circular path”, and is preferably transported and fired around the substantially circular path.
(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 process 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. Since a possible structure is required, it is fulfilled as a function.

(Type classification of resistance electric furnace 5)
As a form of the resistance-type electric furnace 5, a box-type furnace in which a sample is taken in and out of a cube-shaped furnace, a cylindrical tubular furnace placed vertically or horizontally, a crucible furnace in which an upper lid is opened and a sample is put in, Horizontal moving bed type continuous furnace that puts the sample on the conveyance path consisting of chain conveyor and pusher and passes through the tunnel type furnace to set the temperature condition from the entrance to the exit, after the sample is placed in the furnace Examples include an elevator furnace that moves up and down, a rotary kiln furnace that performs firing while stirring the sample in the furnace body, and a carriage furnace that fires the entire carriage while moving the carriage on which the sample is placed.

[Type 1 of Resistance Electric Furnace 5 (Example 1)]
In the first embodiment, the resistance electric furnace 5 includes a furnace chamber 51 having a heat-resistant furnace material as a main constituent material and a heating wire HW disposed therein, and a floor portion of the furnace chamber. In addition, a moving bed type base 52 that rotates in plan view, a charging port 501 that puts a semi-fired piece before incineration on the base in the furnace chamber, and a discharge that discharges calcium oxide and components after incineration from the base A hole 5h and a guide wall 511 that is continuously or intermittently arranged and fixed from above or from the side of the furnace chamber and guides the semi-fired pieces on the base to the discharge hole 5h (FIGS. 3 to 6). ). In particular, in Example 1, one guide wall is erected along a series of guide paths from the outer peripheral portion in contact with the indoor wall 512 to the half edge of the discharge hole 5h while being gently curved.

  Then, by rotating the base under the fixed guide wall 511, the semi-fired piece O4 put on the base from the inlet is along the circular spiral path by the guide wall 511 while being fired in the furnace chamber. Then, it is guided to the discharge hole 5h, and dropped and discharged from the discharge hole 5h. Here, the circular spiral path refers to a continuous path that gradually moves from the center side in plan view to the outside or from the outside in plan view to the center side while circling on the base from the input part, and is based only on the gentle curve path. In addition to the substantially circular vortex, the linear portion includes a substantially polygonal vortex that is curved into a polygonal shape by bending at a predetermined length. By using a spiral path, the semi-fired piece O4 can be moved in the furnace while being efficiently heated by utilizing the rotation of the rotating plate 521.

  The path of the resistance electric furnace formed by the induction wall 511 includes a reciprocating parallel path, a rectangular path, a one-way reciprocal path in plan view extending up and down, and the like in addition to the above-described circular spiral path. May be adopted.

  The charging pipe 50 is a charging opening 501 that vertically penetrates the ceiling 51C of the furnace chamber 51 and has a lower end cut obliquely. The charging port 501 is cut and formed obliquely so that the charged semi-fired piece O4 faces the circumferential direction that is the traveling direction, and the position of the charging port 501 is a circular shape in plan view that is one edge of the plane on the base 52. It is arranged near the outer periphery of the shape. The discharge hole 5h formed in the base is arranged as a circular hole at the center of the circular shape in plan view, which is near the rotation axis at the center of the base.

  On the ceiling 51C of the furnace chamber 51, the heating wire HW is disposed so as to be exposed in the room along the plane path of the semi-fired piece O4 (FIGS. 4 and 5). Instead of or in addition to this arrangement, the guide wall 511 or the indoor wall 512 may be arranged on the surface or inside. A plurality of heating wires HW may be arranged by combining any of these.

  One or a plurality of guide walls 511 are suspended and fixed in the furnace chamber 51, and only the base is rotated indoors while the furnace chamber 51 is fixed, so that it is placed on the rotating plate 521 of the base 52. The semi-fired piece O4 is guided to the discharge hole 5h through a circular spiral path from the input portion toward the discharge hole 5h.

  The base 51 includes a rotating plate 521, an upper outer frame 522 that projects upward from the periphery of the rotating plate, and a lower outer frame 523 that also projects downward from the periphery of the rotating plate and bends outwardly in a U-shaped cross-section. Are integrally configured to be rotationally driven. Sand seal sand 5s is filled in the lower outer frame 523, and the lower outer frame of the furnace chamber enters into this to form a sand seal structure (FIGS. 3, 4, and 6). With the sand seal structure, the inside of the furnace is configured to be a closed type, and the generation of harmful gases such as dioxins and odors is prevented, and the combustion efficiency is high.

  In addition, inner and outer double circular legs 524L and 525L are formed on the lower surface side of the rotating plate 521 so as to protrude downward (FIGS. 3, 4, and 6). A driving roller 524 and a supporting roller 525 are rotatably arranged at equal intervals along the circular shape below the circular legs 524L and 525L. The drive roller 524 and the support roller 525 drive the rotary plate 521 to rotate in a plane while supporting the circular legs 524L and 525L by a rack and pinion structure and a smooth surface pressure contact structure.

[Type 2 of Resistance Electric Furnace 5 (Example 2)]
Instead of the resistance electric furnace 5 of the first embodiment, in the second embodiment (FIGS. 7 to 9), a two-piece bent plate-shaped guide wall 511 including an outer guide wall 511a and an inner guide wall 511b is provided. Both are suspended and fixed from the upper surface of the cylindrical frame 510 of the furnace chamber 51. As in the first embodiment, this is pushed by the guide wall 511 fixedly arranged by the rotation of the base 52, and the semi-fired piece O4 on the roadbed 52 is guided along the circular spiral path to the discharge hole 5h (see FIG. 9). In the base 52, an upper outer frame 522 is provided in a circular cylindrical shape along the periphery of a rotary plate 521 having a circular flat surface, and a lower outer frame 523 extends downward in the same shape as the upper outer frame 522 in plan view, and from there A frame having a U-shape in section view is formed. Sand seal sand 5s is filled in the lower outer frame 523, and the lower outer frame 513 of the furnace chamber 51 enters to form a sand seal structure.

[Type 3 of Resistance Electric Furnace 5 (Example 3)]
In Example 3 (FIGS. 10 to 13), as the resistance electric furnace 5, an annular rotary moving bed furnace having a discharge hole 5h formed at the center is adopted. Specifically, a furnace chamber 51 is formed so as to cover both side walls and the ceiling portion of the circular path-like base 52 in plan view, and the semi-fired piece O4 moves along the circular path in the furnace chamber 51. (FIG. 13). 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. 13, the resistance electric furnace 5 according to the third embodiment is connected to a charging pipe 50 into which the semi-fired piece O4 is charged, and is connected to the charging pipe 50 at a ceiling near one end, and is formed in a predetermined planar path shape. The furnace chamber 51, a base plate 52 having a plurality of base plates 520 connected in a conveyor shape to form the predetermined plane path, and a base plate 52 on which an object is placed are powered to pull the furnace chamber in a predetermined manner. Traction means for horizontally moving along a path. Both the furnace chamber 51 and the base 52 are made of refractory bricks mainly composed of a heat-resistant furnace material. A cooling storage hopper 6 is disposed at a discharge destination below the resistance electric furnace 5, and a pipe between them is connected by a sealed pipe.

(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 hole 5 h in the front portion 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 hole 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 at every intermittent time, the calcined calcium oxide O5 is wiped down into the discharge hole 5h on the inner side in the plan view from the circular path in the plan view.

(Traction means)
The traction 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 inlet part of the semi-fired piece to the discharge hole 5h that is the outlet 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.

[Form 4 of Resistance Electric Furnace 5 (Example 4)]
Instead of the resistance electric furnace 5 of the third embodiment, in the fourth embodiment (FIG. 14), a substantially oval annular rotary moving bed furnace having a discharge hole 5h formed at the center is adopted. Specifically, a furnace chamber 51 is formed so as to cover both side walls and the ceiling portion of the circular path-shaped base 52 in plan view, and the semi-fired piece O4 moves along the circular path in the furnace chamber 51 to form a rake shape. The scraper 54 moves horizontally to push the semi-fired piece O4 at the final position into the discharge hole 5h and discharge it (FIG. 14). It is a moving bed type furnace body with a generally oval shape or a reciprocating path in plan view as a shell firing furnace, and it is compactly configured as a resistance-type electric furnace that can be operated continuously, making long-term heat treatment efficient. It is possible to carry out stepwise heat treatment in which the furnace path is partially divided.

(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 pipe-connected from the collector 53 by a connection pipe C5. In addition, a powder storage device that has a ceiling and is substantially sealed, and performs a cooling storage step of cooling to room temperature while storing calcium oxide O5 obtained in the steps up to the resistance electric furnace 5 of the present system. 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 hole 5h64 when the storage amount in the storage unit 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, and by blowing cool air generated by the cooler 63 from the duct connection portion, the main body The calcium oxide O5 stored in the storage unit 61 is cooled to room temperature. By cooling to normal temperature in the storage state, the bag can be safely packed without the denaturation of the containing 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.
(A) Desalting and washing step for removing the attached salt by washing the raw shellfish O1 with the washing liquid W to obtain demineralized shellfish O2 (b) Crushing step for coarsely crushing demineralized shellfish O2 to obtain coarsely crushed O3 ( c) Preheating drying step for drying the coarsely crushed piece O3 by heating to obtain a semi-fired piece O4 (d) On the moving bed type base 52 provided in the furnace chamber 51 of the electric furnace, the semi-fired piece O4 is formed in a substantially circular path. (B) Cooling and storing step (f) for cooling by blowing cold air while storing the obtained calcium oxide in the cooling storage hopper 6 with a ceiling. A bagging process for storing the required amount of calcium oxide O5 cooled through the cooling storage process in the storage bag P and sealing the storage bag P, at least (a) a desalting washing process, (b) a crushing process , (C) a preheat drying step, and (d) electric firing. Although calcium oxide O5 can be obtained continuously by providing the steps in order, it is preferable to provide (e) a cooling storage step as a subsequent process, or (f) a bagging step. Each process can be extracted and performed, or some processes such as (a) and (b) can be omitted depending on the object, or only a part of the processes can be repeated a plurality of times. . Hereinafter, the significance of each process will be described.

  First, (a) as a desalting and washing step, it is necessary to remove the salt contained in the raw material shellfish O1 in order to keep damage to the resistance electric furnace 5 to a minimum. 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 coarse crushing step, various sizes and shapes of shells (especially washed shells O2) should be heat-treated as uniformly as possible in order to prevent problems in the resistance electric furnace 5 during operation. When entering the resistance electric furnace 5 into the furnace, it is necessary to have a uniform size and shape. Therefore, a rough crushing process is required in which the shells are coarsely crushed and applied to the crushing apparatus 3 to make the size uniform. 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, as a preheating drying step, the shellfish that have passed through the crushing device 3 need to be dried by the heating drying device 4 and preheated. 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) And as an electric baking process, in the resistance type electric furnace 5 which is a main furnace, the electric baking process which bakes within the range of 1000 to 1600 degreeC is passed. 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) As a subsequent cooling and storing step, calcium oxide O5 obtained by baking in the electric baking step is at a high temperature, so that it is stored in a container and stored, and the container has a cooler and is cooled to room temperature. There is a need for a cooling process. In the embodiment, this is performed as a cooling storage step by the cooling storage hopper 6.

(F) And, as the final bagging process, the finished calcium oxide O5 has a high hygroscopic property and must be quickly packed into 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.
One embodiment of the processing method of the present plant is provided with the above six steps in order. 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 seawater adhere to the wall surface of the seawater channel, and the shells are piled up several times after the continuous operation time, and eventually fall off from the stacked lower layer portions. 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 for electrically calcining calcium oxide O5, and industrial waste is not discharged although it is a system including a final disposal furnace. 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.

(Baking test)
In order to confirm the effect of the shellfish treatment method of the present invention, an actual shellfish or shellfish was subjected to a firing test in which each step of the present invention was performed. Four types of test shells were prepared: sludge, crow / murasaki, oyster, and barnacle. However, all were used with their body removed. The conveyance speed was 1667 mm / h, and the first circuit was preheated at 300 degrees and the main furnace was fired at 800 degrees, and the second circuit was preheated at 500 degrees and the second circuit was fired at 1000 degrees. As a result, it was found that the second circuit can perform better processing.

  Tests have shown that barnacles explode and scatter when heated to near 300 degrees, even at an incineration temperature setting of 1000 degrees, if not crushed. Then, after crushing until it became 1 cm or less in maximum length, it was preheated and dried at 500 degrees and then fired at 1000 degrees in the main furnace. Although oysters did not explode, they were found to be scattered in small pieces. The result of the bulk specific gravity measurement after the test firing and the result of the weight change measurement are shown below.

Moreover, the component analysis result of a baked product is shown below.

  The fired product by this treatment system becomes calcium oxide. 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, replacement with an alternative configuration is made without departing from the gist 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 device 41 First row drying device 42 Second row drying device 43 Combined hopper 44 First adjustment tank 45 Second adjustment tank 5 Resistance electric furnace 5h Discharge hole 501 Input port 51 Furnace chamber 511 Induction wall
52 base
53 Collector 54 Scraper 55 Connection inner frame 56 Connection outer frame 6 Cooling storage hopper 61 Main body storage part 62 Cooler 63 Rotary blade 64 Discharge nozzle 65 Discharge valve 7 Bag filling device 71 Lifting means 72 Opening holding means 73 Supply means 74 Conveying means 75 Sealer C Connection
C1 drying conveyor
C21 first row conveyor
C22 Second row conveyor C5 Communication pipe F Fan O Shells P Storage bag W Wash water

Claims (9)

A method of treating shellfish that obtains calcium oxide by continuously treating marine raw shellfish or shellfish, and at least demineralized washing that removes attached salt by washing raw shellfish with a washing solution to obtain demineralized shellfish A process, a crushing process for crushing demineralized shellfish to obtain a coarse crush, a preheat drying process for obtaining a semi-fired piece by heating and drying the crushed pieces
A resistance-type electric furnace having a closed floor is provided with a moving bed type base, and the semi-fired piece is substantially circular or annular while the semi-fired piece is hermetically fired on the base in the closed type furnace chamber. Alternatively, an electric firing step for obtaining calcium oxide by inducing and proceeding along a reciprocating transport route ,
A cooling and storing step of cooling by blowing cold air while storing the obtained calcium oxide in a cooling storage hopper with a ceiling; and
A bag filling step for sequentially storing the required amount of cooled calcium oxide in the containing bag and sealing the containing bag ,
The resistance electric furnace has an outer frame filled with sand seal sand along the periphery of the furnace chamber, and another outer frame extending from the furnace chamber enters into the outer frame to form a sand seal structure. The shellfish processing method characterized by performing an electric baking process, with the inside of a furnace comprised by the closed type by being done . A shellfish processing plant for performing the shellfish processing method according to claim 1, at least,
A desalting and cleaning apparatus for removing the attached salt by washing the raw shellfish with the cleaning liquid W to obtain a 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;
On the moving bed type base provided in the furnace chamber extending along a substantially circular path in plan view, the semi-fired pieces are fired while being transported along a predetermined transport path to obtain calcium oxide and other constituent materials are obtained. A resistance electric furnace to be incinerated,
Between the devices, and sealed hopper for storing the object, the sealed transport means for continuously transporting operation between the neighboring device through the sealed tube, the supply from the hopper to the conveying means, the storage amount of the hopper And a supply control device that controls the temperature of the stored material, and automatically supplies the control device with the supply control device while controlling the amount of the object with the supply control device while continuously operating each device and transport means. Shellfish processing system characterized by performing continuous processing in The resistance-type electric furnace is composed of a closed furnace, and is connected to the heating and drying apparatus with a sealed pipe, and the first and second storage tanks are interposed,
The first storage tank and the second storage tank are provided with first and second solenoid valves at their respective discharge ports so that the other can be opened only when one of the two solenoid valves is closed. The shellfish processing system according to claim 2 controlled by the above.   A cold storage hopper for collecting and storing calcium oxide discharged from the furnace chamber in a circular path of the resistance-type electric furnace in a plan view circular path in a plan view, and cooling it in the stored state is provided. The shellfish processing system according to claim 2 or 3, wherein the calcium oxide stored in the cooling storage hopper is cooled to room temperature. Resistance electric furnace
A furnace chamber with a heat-resistant furnace material as the main component and a heating wire inside;
The floor of the furnace chamber is configured, and a movable floor base that rotates and moves in plan view,
An inlet for charging a semi-fired piece before incineration on the base in the furnace chamber;
A discharge port for discharging calcium oxide and components after incineration from the base,
A guide plate fixed from above or from the side of the furnace chamber and guiding the semi-fired piece on the base to the discharge port,
As the base rotates under the fixed guide plate, the semi-fired pieces placed on the base from the input port are guided to the discharge port along the predetermined plane path by the guide plate while being fired in the furnace chamber. The shellfish processing system according to any one of claims 2 to 4. The input part to the base by the input port is near one edge of the plane of the base,
The discharge part from the base with the discharge port is near the rotation axis in the center of the base,
The shellfish processing system according to any one of claims 2 to 5, wherein the predetermined planar path of the electric furnace formed by the induction plate is a circular spiral path that goes from the charging part to the discharge part while circulating on the base.   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 2 to 6, wherein the shellfish processing system according to any one of claims 2 to 6, wherein the shellfish is crushed to a predetermined size or less by passing the desalted shellfish, and water attached to the desalted shellfish is removed. It is equipped with a bagging device that collects calcium oxide obtained by an electric furnace and seals it in a storage bag, and this bagging device spreads in a ring shape in the mouth of the storage bag pulled up one by one, A plate-like opening holding means that holds the container in an open state, a supply means for supplying calcium oxide into the accommodation bag opened by the opening holding means, and opposite both outer sides of the mouth portion of the accommodation bag after accommodation And a pair of horizontal bar-shaped sealers provided so as to sandwich the containing bag,
The sealer closes the accommodation bag by sandwiching the mouth portion of the accommodation bag after containing the calcium oxide from both opposite sides of the outside, removes the opening holding means, and then heats to seal the accommodation bag. 8. The shellfish processing system according to any one of 7. The desalting / cleaning device accommodates shellfish with seawater from the upper diameter of the inlet, and communicates with a cylindrical raw material hopper that discharges from the lower outlet, and a lower communication part below the raw material hopper. A cylindrical container having an internal space extending obliquely upward from the portion, and a shell that is formed so as to be able to rotate in a spiral manner around an axis that is provided along the extending direction of the cylindrical container. A screw blade that transports in the axial direction, and a plurality of spray nozzles that are disposed on the ceiling portion above the lower communication portion of the cylindrical container and spray cleaning water into the interior,
The cylindrical container is provided at the bottom part below the lower communication part, and is provided at a drain outlet for discharging water in the cylindrical container and an extension destination in the upper part of the cylindrical container. It has a discharge port to discharge,
By automatically adjusting the amount of cleaning water sprayed from the spray nozzle and the amount of drainage from the drain outlet, the cleaning water is maintained within a certain range of water level in the internal space.
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 claim 2, wherein the shellfish processing system discharges to the outside from the discharge port after being cleaned by the nozzle.