KR102175936B1 - Method for manufacturing recycling shell powder from waste shells - Google Patents

Abstract

The present invention relates to a method of manufacturing recycled shell powder using waste shells, which can efficiently provide shell powder by mass processing when recycling waste shells, which is a raw material, in various products and industries. The method includes: a screw transfer step of supplying a large amount of waste shells to the front side of a screw transfer unit to transfer the same to the rear side; a shell washing step of washing the waste shells while the waste shells are transferred to the screw transfer unit; a screw crushing step of crushing the waste shells washed in the process of transferring the waste shells by the screw transfer unit to a predetermined size; a shell drying step of putting the crushed waste shells in a pyrolysis container and drying the crushed waste shells; a shell sintering step of sintering the dried waste shells contained in the pyrolysis container through a pyrolysis unit; a shell pulverizing step of pulverizing the sintered waste shells into shell powder through a ball mill grinder; and a classification and storage step of classifying and storing the pulverized shell powder by particle size through a vibration classifier.

Description

Manufacturing method of recycled shell powder using waste shell {METHOD FOR MANUFACTURING RECYCLING SHELL POWDER FROM WASTE SHELLS}

The present invention relates to a method of manufacturing a recycled shell powder using a waste shell that can be provided by powdering the shell, which is a shell, to be recycled in various fields.

Since Korea is surrounded by the sea on three sides, fish and shellfish have been important food resources and have been an important source of high-quality protein and lipids, and are also a source of vitamins A, D, B2, and mineral calcium (Ca).

Hundreds of thousands of tons of oyster shells are generated every year in the case of shellfish waste, which is a waste of shellfish. In particular, about 300,000 tons of oyster shells are produced in Gyeongsangnam-do, which accounts for more than 60% of the nation's oyster production. More than 100,000 tons of waste shells are occurring.

About 50% of these waste shells are used for harvesting and 10% as fertilizer, but about 40% of the remaining amount is buried on the shore or treated in the open field, so it has emerged as a serious environmental pollution problem with odor.

As a method for recycling using such a waste shell, it is manufactured with a composition for external application for skin (for example, Patent Publication Nos. 10-2010-0019737 and 10-2011-0086894), or a wood panel (for example, Patent Publication No. 10- 1614502), construction materials (e.g., Utility Model Publication Nos. 20-0165053 and 20-0374493, and Patent Publication No. 10-2008-0017068), paints, artificial reefs and fishing gear, tetrapot, desulfurization agent, water It is used in various products and industrial fields such as purification agents, feed, snow removal materials, and road construction.

Looking at the recycling plan of the waste shells used in various products and industries as described above, the waste shells are basically powdered and mixed with different compositions, and the method of manufacturing the shell powder is mainly a washing step and a firing step. And it is used by pulverizing to a desired particle size through the pulverization step.

However, in spite of the various recycling methods of the above-described waste shells as salpinned above, the shells are still not properly recycled, and thus a large amount of the shells is being buried and treated in the yard. First, because of low economic efficiency, there is no company that can take the lead in mass treatment. Second, there is a technology that can provide shell powder to each recycling company by classifying the collected waste shell into a desired particle size according to various recycling methods. Because it is not prepared.

That is, there is a need for a technology capable of efficiently providing each company with a large amount of shell powder, which is a raw material, when recycled using waste shells in various products and industries described above.

It is an object of the present invention conceived from the above point of view of the recycled shell powder using waste shells that can be efficiently provided by mass-treatment of shell powder, which is a raw material, when recycled using waste shells in various products and industries. It is to provide a manufacturing method.

In order to achieve the above object, the method of manufacturing recycled shell powder using waste shells according to the present invention includes a screw transport step of introducing a large amount of waste shells to the front of the screw transport unit and transferring them to the rear, and the closed shell is the A shell washing step of washing the waste shells in the process of being transferred to the screw transfer unit, a screw crushing step of crushing the waste shells washed in the process of being transferred to the screw transfer unit to a certain size, and a pyrolysis container for the crushed waste shells. Shell drying step of putting in and drying, shell firing step of sintering the dried waste shells contained in the pyrolysis container through a pyrolysis unit, and shell crushing step of crushing the fired waste shells into shell powder through a ball mill grinder And a classification and storage step of classifying and storing the pulverized shell powder for each particle size through a vibration classifier.

In addition, the screw transfer unit has a cylindrical shape that extends from the front to the rear and has a plurality of drainage holes formed therethrough in the lower part, and is installed in the front upper part of the transfer frame, and the closed shell is A spiral screw blade is formed along the lengthwise direction to transfer the input hopper and the closed shell injected into the front interior of the transfer frame from the hopper to the rear, and a rotation screw formed to reduce the pitch of the screw blade at the rear end It characterized in that it comprises a.

In addition, the shell washing step includes a high-pressure water washing step in which high-pressure water is sprayed into the front interior of the transfer frame to wash the waste shells with water, and high-temperature steam is sprayed into the rear interior of the transfer frame to remove the closed shells. It characterized in that it comprises a steam washing step of steam washing.

In addition, the screw crushing step is characterized in that the closed shell is crushed by a screw blade of the rotating screw at the rear of the transfer frame.

In addition, the pyrolysis unit includes a gas combustion chamber in which the interior is heated by the thermal power of the burner,

A decomposition combustion chamber in communication with the gas combustion chamber to receive heat from the burner to heat the interior thereof, and a decomposition combustion chamber that is installed in the decomposition combustion chamber, and receives heat from the decomposition combustion chamber after receiving the thermal decomposition chamber therein, to the inside of the thermal decomposition vessel. It characterized in that it comprises a pyrolysis tank for pyrolyzing the contained waste shell.

In addition, the pyrolysis tank, characterized in that it comprises a tank frame installed to be open and closed on the upper portion of the tank frame and a tank frame having a hollow cylindrical shape and an opened upper portion protruding outward from the decomposition combustion chamber. do.

In addition, the tank frame of the pyrolysis tank includes a plurality of heat transfer pipes each protruding upward from the bottom surface, and the pyrolysis container is placed and accommodated between each of the heat transfer tubes so that a plurality of the pyrolysis containers are respectively installed upright. do.

In addition, the classification and storage step includes a powder supply step of supplying the pulverized shell powder to the vibration classifier, and a first shell powder group having a particle size of 10 mm or more through the vibration classifier, and a second shell powder group having a particle size of 1 mm to 10 mm. And a vibration classification step of classifying and storing each of the third shell powder groups having a particle size of 0mm to 1mm.

In addition, the vibration classifier includes a classification frame in which an upper portion is inclined downward in front with respect to a rear side, and is installed on the upper portion of the classification frame, and receives the shell powder to receive the first shell powder group, the second shell powder group, and the second shell powder group. 3 Classification troughs that are classified into shell powder groups and then discharge forward, respectively, and the first shell powder group and the second shell powder group respectively installed in front of the classification trough and discharged from the classification trough. And a classification storage unit for storing each of the third shell powder group, and a vibration generation unit for vibrating the classification trough unit vertically with respect to the classification frame.

In addition, the classification trough part is a rectangular box body with an open bottom surface, and a powder inlet for the pulverized shell powder is introduced on the rear top surface, and a first outlet connected to the inside is installed to face the front left side. , The first shell powder group is coupled to the first trough discharged through the first outlet, and the upper and lower sides are opened to communicate with the lower part of the first trough, and the upper part is connected to the inside. The second trough is installed to face the front center, and the second trough is discharged through the second outlet, and the top of the second trough is a rectangular box body with an open top. The third trough is coupled to communicate with the lower part, and a third outlet connected to the inside is installed to face the front right, and the third shell powder group is discharged through the third outlet, and the first trough. A first screen filter installed on the lower surface of the rough to filter the second shell powder group and the third shell powder group to pass but not the first shell powder group, and between the second trough and the third trough It is characterized in that it comprises a second screen filter for filtering the third shell powder group to pass but not to pass the second shell powder group.

In the method of manufacturing recycled shell powder using waste shells according to the present invention, the waste shells are transported, washed, and crushed through a single line called a screw transfer unit, and the crushed waste shells are put in a pyrolysis container, dried, and then through a pyrolysis unit. It is plasticized and pulverized into shell powder with a ball mill grinder, classified and stored by particle size through a vibration classifier, so that when the waste shell is recycled in various products and industries, the shell powder, the raw material, is mass-treated and efficiently provided. It can have an effect.

1 is a flow chart showing an embodiment of a method for manufacturing recycled shell powder using a waste shell according to the present invention,
FIG. 2 is a side view schematically showing a process of performing a screw transfer step, a shell washing step, a screw crushing step, and a shell drying step in the embodiment of FIG. 1;
3 is a side view schematically showing a process of performing the shell firing step in the embodiment of FIG. 1,
Figure 4 is a side cross-sectional view showing a decomposition combustion chamber and a pyrolysis tank in the embodiment of Figure 3,
5 is a perspective view showing a state in which the upper cover of the pyrolysis tank is opened in the embodiment of FIG. 4;
6 is a side view schematically showing a process of performing a shell crushing step in the embodiment of FIG. 1,
7 is a front view schematically showing a process of performing the classification and storage step in the embodiment of FIG. 1,
8 is a perspective view showing the vibration classifier in the embodiment of FIG. 7,
9 is a side cross-sectional view illustrating a process of being classified by a classification trough in the embodiment of FIG. 8.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the manufacturing method of the recycled shell powder using the waste shell according to the present invention.

The method of manufacturing recycled shell powder using waste shells according to the present invention includes a screw transfer step (S100), a shell washing step (S200), a screw crushing step (S300), and a shell drying step (S400) as shown in FIG. , A shell firing step (S500), a shell crushing step (S600) and a classification and storage step (S700), and the shell washing step (S200) includes a high pressure water washing step (S210) and Including a steam washing step (S220), the classification and storage step (S700) may include a powder supply step (S710) and a vibration classification step (S720) as shown in FIG.

In the screw transfer step (S100), as shown in Figs. 1 and 2, a large amount of the closed shell 10 is fed to the front of the screw transfer unit 100 and transferred to the rear. A screw transfer unit 100 to perform a washing and crushing process to remove foreign substances through a single line while collecting a large amount of waste shells 10 from various areas and transferring the collected waste shells 10 by quantitative input. ). This screw transfer unit 100 includes a transfer frame 110, a hopper 120, and a rotating screw 130, as shown in FIG. 2.

That is, the transfer frame 110 has a cylindrical shape extending from the front to the rear, and a plurality of drain holes 110 are formed through the lower portion along the longitudinal direction. In addition, the hopper 120 is installed in the upper front of the transfer frame 110, the closed shell 10 is injected. At this time, the rotating screw 130 is formed with a spiral screw blade 131 along the longitudinal direction so as to transfer the waste pack 10 inserted into the front interior of the transfer frame 110 from the hopper 120 to the rear. , At the rear end, the pitch of the screw blade 131 is formed to decrease.

The characteristic configuration of the transfer frame 110 is a shell washing step (S200) and a screw crushing step (S300) to be described later in the process of being transferred after the waste shell 10 is input through the screw transfer step (S100). 110) to proceed together. Accordingly, a plurality of drainage holes 110 are formed through the lower portion of the transfer frame 110 in the longitudinal direction so that water can be drained downward, and in the case of the rotating screw 130, a screw blade ( The pitch of 131) is formed to be small, so that the closed shell 10 is crushed to a certain size.

That is, as shown in Figs. 1 and 2, in the shell cleaning step (S200), the closed shell 10 is washed in a process in which the closed shell 10 is transferred to the screw transfer unit 100, and the screw crushing step ( S300) also crushes the waste shell 10 washed in the process of being transferred to the screw transfer unit 100 to a certain size.

At this time, the shell washing step (S200) has two washing steps, including a high pressure water washing step (S210) and a steam washing step (S220). In the high-pressure water washing step (S210), as shown in FIG. 2, the waste shell 10 is washed with water by spraying high-pressure water into the front interior of the transfer frame 110, and the steam washing step (S220) is performed by the transfer. The waste shell 10 is steam-washed by spraying high-temperature steam into the rear interior of the frame 110. Here, the high-pressure water washing step (S210) is a work to cleanly remove foreign matter or salt from the surface of the waste shell 10, and the steam washing step (S220) is an oil or oil that is not washed out by water other than simple foreign substances. It is intended to provide only the pure nature of the shell by eradicating other bacteria. Through this, even if the waste shell is pulverized into shell powder, a high quality shell powder with minimal other foreign matter can be obtained.

The waste shell from which foreign matters have been removed through the shell washing step (S200) is crushed to a certain size through the screw crushing step (S300), and the screw-cutting step (S300) is also carried out through the screw transfer unit 100. That is, the closed shell 10 is crushed by the screw blade 131 of the rotating screw 130 at the rear of the transfer frame 110. The screw blade 131 of the rotating screw 130 is formed so that the pitch of the screw blade 131 at the rear end is small, that is, the gap between the screw blade 131 and the other screw blade 131 is narrowed as previously salpinned. Because the closed shell 10 is crushed as it goes toward the rear end of the screw blade 131. The crushed closed shell 10 is discharged through the lower rear of the transfer frame 110.

In the shell drying step (S400), as shown in FIGS. 1 and 2, the crushed waste shell 10 is put in a pyrolysis container 200 and dried. That is, the waste shell 10 that is crushed and discharged to the rear of the transfer frame 110 is contained in the pyrolysis container 200, and the waste shell 10 contained in the pyrolysis container 200 performs a shell washing step (S200). Since moisture remains as it goes through, it is dried to remove this moisture. Drying of the crushed waste shell 10 may be slowly dried through natural drying, or may be put in a separate drying booth and dried in a short time.

In the shell firing step (S500), as shown in FIGS. 1 and 3, the waste shell 10, which has been put in the pyrolysis container 200 and dried, is sintered through the pyrolysis unit 300. That is, the waste shell 10 is calcined (pyrolyzed) by heating and baking to produce slaked lime as an oxide so that it can be easily pulverized. Through this, the minimum moisture contained in the inside of the closed shell 10 is blown away, and an oxide is produced.

The pyrolysis unit 300 for plasticizing the waste shell 10 includes a burner 310, a gas combustion chamber 320, a decomposition combustion chamber 330, and a pyrolysis tank 340, as shown in FIG. 3. That is, the interior of the gas combustion chamber 320 is heated by the thermal power of the burner 310, and the decomposition combustion chamber 330 communicates with the gas combustion chamber 320 to receive the thermal power of the burner 310 to heat the interior. . At this time, the pyrolysis tank 340 is installed in the decomposition combustion chamber 330 and receives heat from the decomposition combustion chamber 330 after the pyrolysis vessel 200 is accommodated therein, and is contained in the pyrolysis vessel 200. The waste shell 10 is pyrolyzed.

The pyrolysis tank 340 includes a tank frame 341 and an upper cover 342 as shown in FIGS. 4 and 5. The tank frame 341 has a cylindrical shape with a hollow inside, and the opened upper part is installed so as to protrude from the decomposition combustion chamber 330 to the outside. The pyrolysis container 200 is provided with a plurality of the closed shells 10 are accommodated in each of the inside, each of the tank frame 341 is put so as to be mounted upright inside, or the closed shell 10 is pyrolyzed. After that, it must be removed from the inside of the tank frame 341 to the outside. Accordingly, the upper cover 342 is installed to be openable and closed on the top of the tank frame 310 so that the pyrolysis container 200 can be introduced and removed into the tank frame 310.

That is, the pyrolysis tank 340 does not directly insert the waste shell 10 into the tank frame 341, but after the pyrolysis container 200 contains the waste shell 10 through a separate pyrolysis container 200 To the inside of the tank frame 341. Accordingly, after the waste shell 10 is pyrolyzed, it remains inside the pyrolysis container 200, and the pyrolysis container 200 is removed from the tank frame 341 to easily treat the pyrolyzed oxide to the outside. There is.

At this time, since a separate pyrolysis container 200 is inserted into the tank frame 341 and the waste shell 10 is contained in the pyrolysis container 200, heat transfer efficiency may be degraded. To prevent this, as shown in FIGS. 4 and 5, the tank frame 341 of the pyrolysis tank 340 may include a plurality of heat transfer tubes 341a protruding upward from the bottom surface, respectively. That is, the thermal power of the burner 310 transmitted to the decomposition combustion chamber 330 is transmitted through the side surface of the tank frame 341 as well as the lower surface of the tank frame 341, and in particular, the tank frame through the heat transfer pipe 341a. 341) is to maximize the heat transfer efficiency to the inside.

When provided with the heat transfer pipes 341a of the tank frame 341 as described above, each of the pyrolysis containers 200 is each of the heat transfer pipes 341a of the tank frame 341 as shown in FIGS. It is placed between and is mounted upright. That is, it is disposed between the heat transfer pipes 341a and is mounted upright without the need to provide a separate holder for mounting the pyrolysis vessel 200, so that the heat transferred from the heat transfer pipe 341a can be more efficiently received. will be.

In the shell pulverization step (S600), the sintered waste shell 10 is pulverized into shell powder 20 through a ball mill pulverizer 400 as shown in FIGS. 1 and 6. As shown in FIG. 6, the ball mill grinder 400 is a device for pulverizing a material by impact by a steel ball motion by placing a plurality of ball steel balls together with a material to be crushed in a cylinder, and rotating them. The length of the cylinder is a standard type that does not exceed the diameter, but for mass production, there are also types such as a tube mill that is several times longer than the diameter, and a compound mill in the middle, and the inner surface of the cylinder is built with special steel or nickel plate. It is used to make the final derivative.

When the sintered waste shell 10 is pulverized and pulverized through the ball mill grinder 400, the shell powder 20 is pulverized by dividing the size of each particle size. In order to recycle the shell powder 20, it is necessary to classify and store it so that it can be classified by desired particle size in various products and industries, and this is achieved through a classification and storage step (S700).

In the classification and storage step (S700), the pulverized shell powder 20 is classified and stored for each particle size through a vibration classifier 500 as shown in FIGS. 1 and 7. That is, in the classification and storage step (S700), the powder supply step (S710) of supplying the pulverized shell powder (20) to the vibration classifier (500) and a first particle size of 10 mm or more through the vibration classifier (500). The shell powder group 21, the second shell powder group 22 having a particle size of 1mm to 10mm, and the third shell powder group 23 having a particle size of 0mm to 1mm are classified and stored.

For example, even when the waste shell is buried, it must be crushed to be buried to be less than 20 mm, so that the first shell powder group 21 can be used for landfill or road construction, tetrapot, artificial reefs, fishing or construction materials, etc. The second shell powder group 22 can be used as a paint, feed, desulfurization agent, water purifier, and snow remover, and in the case of ultra-fine powder, such as the third shell powder group 23, cosmetics such as skin external composition It may be provided for use in fields requiring chemical bonding such as food.

The vibration classifier 500 for performing this classification and storage step (S700) includes a classification frame 510, a classification trough unit 520, a classification storage unit 530, and vibration generation as shown in Figs. Includes part 540.

The classification frame 510 is formed so that the front is inclined downward with respect to the rear of the upper part, and the classification trough part 520 is installed on the upper part of the classification frame 510, and is supplied with the shell powder 20 to receive the first After sorting into shell powder group (21), second shell powder group (22), and third shell powder group (23), they are discharged forward, respectively.

More specifically, the classification trough part 520 is a rectangular box body with an open bottom surface as shown in Figs. 8 and 9, and a powder inlet 521a into which the pulverized shell powder 20 is injected into the rear top surface. A first trough formed and connected to the inside in the front is installed to face the front left, and the first shell powder group 21 is discharged through the first discharge port 521b ( 521 and a rectangular box body with open upper and lower sides, the upper part is coupled to communicate with the lower part of the first trough 521, and the second outlet 522a connected to the inside in the front is installed to face the front center, , The second trough 522 from which the second shell powder group 22 is discharged through the second outlet 522a, and the upper part of the second trough 522 is a rectangular box body with an open top surface. A third outlet (523a) connected to the lower portion and connected to the inside is installed to face the front right, and the third shell powder group 23 is discharged through the third outlet (523a). It includes 3 troughs 523.

At this time, as shown in Fig. 9, the second shell powder group 22 and the third shell powder group 23 are interposed between the first trough 521 and the second trough 522 to pass through. The third shell powder group is interposed between the first screen filter 524 for filtering so that the first shell powder group 21 does not pass, and the second trough 522 and the third trough 523. (23) includes a second screen filter (525) for filtering so as not to pass through the second shell powder group (22).

At this time, the classification storage unit 530 is installed in front of the classification trough unit 520, respectively, the first shell powder group 21 and the second shell powder group discharged from the classification trough unit 520 Each of the (22) and the third shell powder group (23) is stored. In addition, the vibration generating unit 240 vibrates the classification trough unit 520 vertically with respect to the classification frame 510. To this end, the vibration generating unit 540 includes a plurality of coil springs interposed between the classification frame 510 and the classification trough unit 520, and a vibrator installed on the classification trough unit 520 to generate vibration. Includes.

Accordingly, the classification trough unit 520 installed inclined with respect to the classification frame 510 is vertically vibrated by the vibration generating unit 540, and the shell powder 20 supplied into the first screen filter 524 ) And classified into a first trough 521, a second trough 522, and a third trough 523 through the second screen filter 525. In addition, the first shell powder group 21 from the first trough 521 is discharged forward through the first outlet 521b, and the second shell powder group 22 from the second trough 522 is 2 It is discharged forward through the discharge port 522a, and the third shell powder group 23 is discharged forward from the third trough 523 through the third discharge port 523a. At this time, a classification storage unit 530 is installed in front of each of the first discharge port 521b, the second discharge port 522a and the third discharge port 523a, and the first shell powder group 21 and the second The 2 shell powder group 22 and the third shell powder group 23 are stored.

As described above, in the method of manufacturing recycled shell powder using waste shells according to the present invention, transport, washing and crushing of the waste shells 10 through a single line called the screw transfer unit 100, and crushed shell shells (10) is put in a pyrolysis container (200), dried, and then calcined through the pyrolysis unit (300), pulverized into shell powder (20) with a ball mill grinder (400), and classified by particle size through a vibration classifier (500). By storing and storing, there is an effect of efficiently providing the shell powder 20, which is a raw material, by mass-processing when recycled using the waste shell 10 in various products and industries.

Embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those of ordinary skill in the technical field of the present invention can improve and change the technical idea of the present invention in various forms. Therefore, such improvements and changes will fall within the scope of the present invention as long as it is apparent to those of ordinary skill in the art.

10: lung shell
20: shell powder 21: first shell powder group
22: second shell powder group 23: third shell powder group
100: screw transfer unit
110: transfer frame 111: drain hole
120: Hopper
130: rotating screw 131: screw blade
200: pyrolysis container
300: pyrolysis unit 310: burner
320: gas combustion chamber 330: decomposition combustion chamber
340: pyrolysis tank
341: tank frame 341a: heat transfer tube
342: upper cover
400: ball mill grinder
500: vibration classifier 510: classification frame
520: classification trough unit 521: first trough
521a: powder inlet 521b: first outlet
522: second trough 522a: second outlet
523: third trough 523a: third outlet
524: first screen filter 525: second screen filter
530: classification and storage unit 540: vibration generating unit
S100: Screw transfer step
S200: Shell washing step
S210: high pressure water washing step S220: steam washing step
S300: screw crushing step
S400: Shell drying step
S500: Shell firing stage
S600: Shell crushing step
S700: Classification and storage step
S710: powder supply step S720: vibration classification step

Claims (10)

A screw transfer step of introducing a large amount of waste shells to the front of the screw transfer unit and transferring them to the rear, a shell washing step of washing the waste shells while the waste shells are transferred to the screw transfer unit, and A screw crushing step of crushing the waste shells washed in the process to a certain size, a shell drying step of placing the crushed waste shells in a pyrolysis container and drying them, and sintering the dried waste shells contained in the pyrolysis container through a pyrolysis unit. Including a shell sintering step to process, a shell pulverization step of pulverizing the sintered waste shells into shell powder through a ball mill grinder, and a classification and storage step of classifying and storing the pulverized shell powder by particle size through a vibrating classifier. and,
The screw transfer unit,
A transfer frame having a cylindrical shape extending from the front to the rear and having a plurality of drainage holes penetrating through the lower portion, a hopper installed in the front upper portion of the transfer frame and into which the closed shell is injected, and the hopper A spiral screw blade is formed along the longitudinal direction to transport the closed shell injected into the front interior of the transfer frame from the rear end, and the rear end includes a rotating screw formed to reduce the pitch of the screw blade,
The shell washing step,
A high-pressure water washing step of washing the waste shells with water by spraying high pressure water into the front interior of the transfer frame, and a steam washing step of steam washing the waste shells by spraying high-temperature steam into the rear interior of the transfer frame and,
The pyrolysis unit,
A gas combustion chamber that is heated by the burner's thermal power,
A decomposition combustion chamber in communication with the gas combustion chamber to receive heat from the burner to heat the interior thereof,
Recycling using a waste shell, characterized in that it includes a pyrolysis tank installed in the decomposition combustion chamber and receiving heat from the decomposition combustion chamber after the pyrolysis container is accommodated therein and pyrolyzing the waste shell contained in the pyrolysis container Method for producing shell powder.
delete delete The method of claim 1,
The screw crushing step,
A method of manufacturing recycled shell powder using a closed shell, characterized in that the closed shell is crushed by a screw blade of the rotating screw at the rear of the transfer frame.
delete The method of claim 1,
The pyrolysis tank,
A tank frame having a hollow cylindrical shape and an open upper part protruding from the decomposition combustion chamber to the outside;
Method for producing recycled shell powder using a closed shell, characterized in that it comprises an upper cover installed to be opened and closed on the upper portion of the tank frame.
The method of claim 6,
The tank frame of the pyrolysis tank,
Manufacturing of recycled shell powder using a closed shell, characterized in that it includes a plurality of heat transfer tubes each protruding upward from the bottom surface, and is placed between and accommodated between each of the heat transfer tubes so that the plurality of pyrolysis containers are mounted upright Way.
The method of claim 1,
The classification and storage step,
A powder supply step of supplying the pulverized shell powder to the vibration classifier,
Including a vibration classification step of classifying and storing a first shell powder group having a particle size of 10 mm or more, a second shell powder group having a particle size of 1 mm to 10 mm, and a third shell powder group having a particle size of 0 mm to 1 mm through the vibration classifier. Method for producing recycled shell powder using waste shell, characterized in that.
The method of claim 8,
The vibration classifier,
A classification frame in which the upper part is inclined downward with respect to the rear,
A classification trough part installed on the upper part of the classification frame, receiving the shell powder, classifying it into the first shell powder group, the second shell powder group, and the third shell powder group, and then discharging them to the front, respectively,
A classification storage unit respectively installed in front of the classification trough unit and storing each of the first shell powder group, the second shell powder group, and the third shell powder group discharged from the classification trough unit,
A method of manufacturing recycled shell powder using a closed shell, characterized in that it comprises a vibration generating part for vibrating the classification trough part up and down with respect to the classification frame.
The method of claim 9,
The classification trough unit,
It is a rectangular box body with an open lower surface, and a powder inlet is formed on the rear upper surface to which the pulverized shell powder is injected, and a first outlet connected to the inside is installed to face the front left, and the first shell powder group is A first trough discharged through the first outlet,
It is a rectangular box body with an open top and bottom, and the upper part is coupled to communicate with the lower part of the first trough, and a second outlet connected to the inside is installed to face the front center, and the second shell powder group is 2 A second trough discharged through the outlet,
It is a rectangular box body with an open top, and the upper part is coupled to communicate with the lower part of the second trough, and a third outlet connected to the inside is installed to face the front right side, and the third shell powder group is 3 A third trough discharged through the outlet,
A first screen filter installed on the lower surface of the first trough to filter the second shell powder group and the third shell powder group to pass but not the first shell powder group;
And a second screen filter interposed between the second trough and the third trough to filter the third shell powder group to pass but not to pass the second shell powder group. Manufacturing method of recycled shell powder.

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