KR20200009874A - Carrier gas circulation type apparatus and method for removing residual salt and impurity - Google Patents

Abstract

Provided are an apparatus and a method for removing carrier gas circulation residual salts and impurities. According to an exemplary embodiment of the present invention, the apparatus for removing carrier gas circulation residual salts and impurities is an apparatus for removing residual salts and impurities from a metal convertor converted into metal form through a reduction process. The apparatus comprises: a reactor melting residual salts contained in the metal converter through heat provided from the outside to separate residual salts and impurities from the metal converter, and converting the residual salts into powder form through cooling; a heating unit disposed to surround the outside of the reactor to provide heat for melting the residual salts contained in the metal converter; a separator separating residual salts and impurities in powder form from the carrier gas introduced into the reactor; and a pump circulating the carrier gas in the order of the reactor, the separator, and the reactor. According to the present invention, the separation efficiency of residual salts and impurities can be increased.

Description

Carrier gas circulation type apparatus and method for removing residual salt and impurity

The present invention relates to a carrier gas residual salt and impurity removal device and removal method, and more particularly, to improve the quality of the metal converter by removing the Li ₂ O or carbon particles that could not be removed by the conventional vacuum distillation method. The present invention relates to a carrier gas circulation residual salt and impurity removal device and a method for removing the same.

Pyroprocessing converts spent nuclear fuel in the form of oxides into a metal converter in a hot molten salt medium through an electrolytic reduction process to supply the converted metal converter to a subsequent electrolytic refining process.

In these two electrochemical processes, molten salt is used as the electrolyte, the current transfer medium. However, the electrolytic reduction process uses LiCl-Li ₂ 0 molten salt as electrolyte, whereas the electrolytic refining process uses LiCl-KCl molten salt.

Accordingly, since the components of the electrolyte used in the two linked processes are different from each other, residual molten salts included in the metal converters generated in the electrolytic reduction process need to be removed in order to improve the linkage between the two processes and to ensure process stability. .

As part of this, a residual salt removing apparatus for removing residual salt from a metal converting body has been proposed.

However, since the conventional residual salt removing device uses a vacuum distillation method, Li ₂ O having a low vapor pressure is difficult to be separated by vacuum distillation, and when the temperature rises, Li ₂ O remaining on the surface of the metal conversion body is increased. There is a problem of refining uranium metal, which is a major component of the metal converter.

The present invention has been made in view of the above, and provides a carrier gas circulating residual salt and impurity removal device and a method for removing Li ₂ O even at a relatively low temperature compared to vacuum distillation. There is this.

Another object of the present invention is to provide a carrier gas circulation residual salt and an impurity removal device and a method for removing impurity adhered to the surface of the metal converter together with the residual salt from the metal converter.

Furthermore, another object of the present invention is to provide a carrier gas circulating residual salt and impurity removal device and a method for removing the residual salt and impurities contained in the metal converter in powder form and recovering them.

According to an aspect of the present invention, a device for removing residual salts and fragments from the metal converter is converted to the metal form through a reduction process, the residual salt contained in the metal converter through the heat provided from the outside A reactor which melts to separate residual salts and impurities from the metal conversion body and converts the residual salts into powder form through cooling; A heating unit disposed to surround the outside of the reactor so as to provide heat for melting the residual salt contained in the metal converter; A separator for separating residual salts and impurities in powder form from the carrier gas introduced into the reactor; And a pump for circulating the carrier gas in the order of a reactor, a separator, and a reactor.

According to another aspect of the present invention, a carrier gas is circulated between a reactor and a separator through a pump to remove residual salts and fractions from a metal converter converted into a metal form through a reduction process. The residual salt contained in the metal converter is melted through heat provided from the outside to separate residual salts and impurities from the metal converter, and the residual salts and impurities separated from the metal converter are transferred through the carrier gas. Converting the residual salt into powder form by rising and cooling; And separating the residual salts and impurities in powder form introduced with the carrier gas in the reactor from the carrier gas through a separator.

According to the present invention, to prevent re-oxidation of the metal switch member according to the Li ₂ O by being in a relatively low temperature compared to the conventional vacuum distillation to remove the Li ₂ O or carbon particles and, Li ₂ O or Efficient removal of carbon particles is possible.

In addition, the present invention can further enhance the quality of the metal converter by being able to forcibly separate impurities adhered to the surface of the metal converter with a carrier gas together with the residual salt contained in the metal converter.

Furthermore, the present invention can reduce the process operation time by forcibly separating the residual salts and impurities contained in the metal converter through a carrier gas and removing them in powder form, thereby reducing the separation efficiency of the residual salts and impurities. You can increase it.

1 is a schematic view showing a carrier gas circulation residual salt and impurity removal apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged view of a portion 'A' of FIG. 1.
Figure 3 is a cross-sectional view showing one embodiment of the injection means that can be applied to the carrier gas circulation residual salt and impurities removal apparatus according to an embodiment of the present invention.
4 is a view showing another form of the injection means that can be applied to the carrier gas circulation residual salt and impurities removal apparatus according to an embodiment of the present invention.
5 is a flow chart of a carrier gas in a state in which residual salt and impurities are removed in a carrier gas circulation residual salt and impurity removing apparatus according to an embodiment of the present invention.
6 is a flowchart illustrating a case in which the carrier gas is stored in the surge tank to clean the injection means in the carrier gas circulation residual salt and impurity removing apparatus according to an embodiment of the present invention.
7 is a flow diagram of a carrier gas in a state in which the injection means is washed through the carrier gas stored in the surge tank in the carrier gas circulating residual salt and impurity removing device according to an embodiment of the present invention.
8 is a schematic view showing a carrier gas circulation residual salt and impurity removal apparatus according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. The drawings and description are to be regarded as illustrative in nature and not restrictive. Like reference numerals designate like elements throughout the specification.

Carrier gas circulating residual salt and impurity removing apparatus (100,200) according to an embodiment of the present invention is a component of the molten salt used as an electrolyte in the reduction reaction of the metal oxide, the residual contained in the metal conversion produced through the reduction reaction The salt can be removed.

In addition, it is possible to remove impurities adhered to the metal converter, such as carbon particles, in addition to Li ₂ O and residual salts from the metal converter converted to the metal form through a reduction process.

To this end, the carrier gas circulating residual salt and impurity removing apparatus (100,200) according to an embodiment of the present invention is a reactor 110, a heating unit 120, a separator 130 and a pump ( 140).

The reactor 110 may accommodate the metal converter produced in the electrolytic reduction process of one of the pyro process, and the aerosol or powder after separating the residual salt and impurities contained in the metal converter from the metal converter. You can change the form.

To this end, the reactor 110 is a reaction chamber 111 having an internal space, the gas distribution plate 112 and the inlet space (S2) partitioning the internal space into a reaction space (S1) and inlet space (S2) At least one injection means (113,213) provided in the gas distribution plate 112 to eject the carrier gas introduced into the reaction space (S1).

In this case, the metal conversion body may be disposed in the gas distribution plate 112 to be located at the reaction space (S1) side, the heating unit 120 is the gas dispersion of the overall height of the reaction chamber 111 The plate 112 and the reaction space (S1) may be arranged to surround a portion of the height of the reaction chamber 111.

Here, the metal converter may be disposed directly on one surface of the gas distribution plate 112 or may be disposed in a separate container (not shown) such as a basket.

Accordingly, when heat is provided from the outside through the heating part 120, the metal conversion body disposed on the gas distribution plate 112 side may be heated by the heat provided by the heating part 120.

Through this, the residual salt contained in the metal conversion body is changed to the molten salt state or changed to the gaseous state to rise to the upper portion of the reaction space (S1) through the carrier gas injected through the injection means (113,213). Can be. In this case, in the metal converter, impurities such as carbon particles fixed on the surface of the metal converter may be separated from the metal converter by changing the surface into a fluid state during the melting of the residual salt. Impurity separated from the surface of the may be floated to the upper portion of the reaction space (S1) through the carrier gas is injected through the injection means (113,213).

As such, the carrier gas circulating residual salt and impurity removing apparatus 100 or 200 according to the exemplary embodiment of the present invention includes the injection means 113 and 213 for injecting the carrier gas from the gas distribution plate 112 on which the metal conversion body is placed. In addition to the residual salt included in the converter, impurities fixed on the surface of the metal converter may be separated from the metal converter through the carrier gas.

Through this, the carrier gas circulating residual salt and impurity removing device (100,200) according to an embodiment of the present invention can further remove the residual salt and impurities from the metal converter to further improve the quality of the metal converter. have.

In this case, the heating part 120 may not be disposed with respect to a part of the height of the upper side of the overall height of the reaction chamber 111. Through this, the reaction space S1 may be heated in the lower space adjacent to the gas distribution plate 112 through the heating unit 120 in the entire space, and the remaining upper space may not be heated.

Accordingly, the reaction space (S1) may be divided into a portion provided to the heat by the heating unit 120 in the height direction and a portion where the heat is not provided by the heating unit 120 may cause a temperature gradient. .

As a result, the aerosol or gaseous residual salt moved to the upper portion of the reaction space S1 through the carrier gas may be changed into a powder form by naturally cooling through a temperature gradient in the process of ascending with the carrier gas. The residual salt changed into a shape may be transferred to the separator 130 through a carrier gas moving toward the separator 130.

Accordingly, the carrier gas circulating residual salt and impurity removing apparatus (100,200) according to an embodiment of the present invention may be moved to the separator 130 in the residual salt and impurities separated from the metal conversion body in a powder state. By the separation in the powder state in the separator 130 may be recovered.

At this time, the carrier gas circulating residual salt and impurity removing device 200 according to an embodiment of the present invention is not surrounded by the heating unit 120 of the reaction chamber 111 as shown in FIG. It may include at least one cooling fin 114 to protrude outward.

Such cooling fins 114 may increase the cooling efficiency at the upper side of the reaction chamber 111 by widening the contact area with the outside air. Through this, the upper side of the reaction space (S1) can maintain a larger temperature difference with the lower side surrounded by the heating unit 120, so that the aerosol or gaseous residual salt can be smoothly changed to a powder state through cooling Can be.

In addition, the heating unit 120 may be disposed to surround a portion of the first connection pipe 181 connecting the reactor 110 and the pump 140 together with the lower side of the reaction chamber 111.

In one example, the heating unit 120 may be disposed to surround the lower side of the reaction space (S1), the inlet space (S2) and a portion of the first connecting pipe (181). Through this, the heating unit 120 by heating a portion of the inlet space (S2) and the first connection pipe 181 even if the residual salt in the powder form through the injection means (113,213) flows into the residual salt introduced By heating and changing to a gaseous state, it is possible to prevent the first connecting pipe 181 from being blocked by residual salt.

Accordingly, the carrier gas flowing into the reactor 110 from the pump 140 through the first connecting pipe 181 may smoothly move toward the reactor 110 in a state where the flow rate is increased by the pump 140. have.

In the present invention, the heating unit 120 is provided in a form surrounding a portion of the reaction chamber 111 can heat the metal converter disposed on the gas distribution plate 112, included in the metal converter It can provide a temperature at which the residual salt can be melted. For example, the heating unit 120 provides heat such that the lower side of the reaction space S1 maintains a temperature of approximately 615 ° C., so that the residual salt contained in the metal converter is changed into a molten state, but the main material of the metal is It may not melt. However, the heat provided through the heating unit 120 is not limited thereto, and the heat may be appropriately changed according to the type of the metal converter.

On the other hand, the injection means (113, 213) as described above may inject the carrier gas introduced into the inlet space (S2) to the reaction space (S1) side.

To this end, the injection means (113, 213) is at least one discharge pipe (113a) fixed to the gas distribution plate 112, as shown in Figure 2 to 4, and the transport flowed in from the inlet space (S2) It may include at least one injection hole (113b) formed in the discharge tube 113a to discharge the gas to the reaction space (S1) side.

Here, the injection hole 113b may be formed at the upper end of the discharge tube 113a as shown in FIG. 3, or may be formed at the side of the discharge tube 113a as shown in FIG. 4. have. However, the position of the injection hole 113b is not limited thereto, and the position of the injection hole 113b may be appropriately changed according to design conditions as long as the position may be smoothly discharged to the reaction space S1.

In this case, the injection means 113 and 213 may have the discharge pipe 113a projected at a predetermined height from the gas distribution plate 112 toward the reaction space S1. Accordingly, when the metal salt placed on top of the gas distribution plate 112 is heated through the heating part 120 to melt the residual salt contained in the metal converter, the residual salt in the molten state is discharged to the discharge tube. The carrier gas may be smoothly discharged to the reaction space S1 through the discharge tube 113a by being stored after flowing down to one surface of the gas distribution plate 112 without being introduced to the 113a side.

In addition, the injection means 113 and 213 may include a shielding portion 113c disposed to cover the injection hole 113b while allowing the discharge of the carrier gas when discharging the carrier gas through the injection hole 113b. Can be.

Such a covering part 113c may be provided to have a relatively wider size than the diameter of the discharge tube 113a.

Accordingly, the shielding portion 113c has a powdery residual salt that falls even when the residual salt changed into a powder state through natural cooling from the upper portion of the reaction space S1 falls to the lower portion of the discharge tube 113a. Can be blocked from entering. In addition, the shielding portion 113c discharge direction of the carrier gas discharged through the injection hole 113b so that the carrier gas can be smoothly discharged to the molten residual salt side present in the gas distribution plate 112. Can guide.

For example, the obstruction portion 113c may be guided downwardly in the discharge direction of the carrier gas by forming the central portion convex upward. However, the shape of the obstruction portion 113c is not limited thereto, and may have an appropriate shape according to the discharge direction of the desired carrier gas.

The separator 130 may separate the residual salt and impurities in the powder state introduced with the carrier gas in the reactor 110 from the carrier gas.

For example, the separator 130 may be a known cyclone that separates solids and gases through centrifugal force. Accordingly, the residual salt and impurities in powder form introduced into the separator 130 may be separated from the carrier gas through centrifugal force and then moved downward of the separator 130, and the carrier gas may be separated from the separator 130. In the powder form can be moved to the pump 140 in the state that the residual salt and impurities are removed.

At this time, one side of the separator 130 may be provided with a collecting unit 150 for collecting the residual salt and impurities in the form of powder separated from the carrier gas.

In one example, the collection unit 150 may be connected to the lower side of the separator 130. Accordingly, the residual salt and impurities in the form of powder separated from the carrier gas by centrifugal force inside the separator 130 may be moved to the lower portion of the separator 130 and collected to the collecting unit 150.

Through this, the carrier gas circulating residual salt and impurity removing apparatus (100,200) according to an embodiment of the present invention can be easily recovered by recovering the residual salt and impurities contained in the metal converter in powder form. have.

In this case, the collecting unit 150 may be detachably coupled with the separator 130. Accordingly, when a predetermined amount of residual salts and impurities are collected in the collector 150, the collector 150 may be separated from the separator 130, thereby increasing convenience of use.

In addition, the collection unit 150 may be connected to the separator 130 and the sixth valve (V6). Through this, when the collector 150 is to be separated from the separator 130, the remaining salt and impurities in powder form are dropped from the separator 130 to the outside by changing the sixth valve V6 to a closed state. Can be prevented.

On the other hand, the carrier gas circulating residual salt and impurity removal device (100,200) according to an embodiment of the present invention may be circulated through the pressure provided by the carrier gas, such as argon gas from the pump 140.

Through this, residual salts and impurities changed into powder after being separated from the metal conversion body in the reactor 110 may be transferred to the separator 130 together with the carrier gas, and transferred to the separator 130 together with the carrier gas. Residual salts and impurities in the form of powder can be easily recovered by separating from the carrier gas in the separator (130).

To this end, the reactor 110, the separator 130 and the pump 140 may be sequentially connected through a plurality of connecting pipes (181, 182, 183). In one example, the pump 140 and the reactor 110 may be connected to each other via a first connecting pipe 181, the reactor 110 and the separator 130 via a second connecting pipe 182. The separator 130 and the pump 140 may be connected to each other through a third connecting pipe 183.

Accordingly, the carrier gas may sequentially circulate through the reactor 110, the separator 130, and the pump 140 by moving along the plurality of connecting pipes.

Through this, the carrier gas is introduced into the inlet space (S2) of the reactor 110 along the first connecting pipe 181 and the reaction space through the injection means (113,213) provided in the gas distribution plate 112 By ejecting to the (S1) side, impurities such as carbon particles fixed on the surface of the metal converter can be separated from the metal converter.

In addition, the carrier gas is separated from the metal conversion body by melting in the process of moving toward the separator 130 along the second connecting pipe 182 and then exists in the reaction space S1 in an aerosol or powder state. The residual salt may move toward the separator 130.

For this reason, residual salts and impurities generated in the reactor 110 may be collected after being separated from the carrier gas in the separator 130, and the carrier gas may be collected in the first connection state in which the residual salts and impurities are removed. The pump 141 may move along the pipe 181.

Carrier gas circulating residual salt and impurity removing apparatus (100,200) according to an embodiment of the present invention may include a carrier gas supply unit 160 for supplying a carrier gas circulated through the pump 140.

The carrier gas supply unit 160 may be in a state in which the carrier gas is stored therein and may be connected to the third connection pipe 183. In addition, the carrier gas supply unit 160 is provided with a first valve V1 at a portion connected to the third connection pipe 183 so that the third connection pipe 183 is operated by operating the first valve V1. ) May be allowed or blocked. In addition, a seventh valve V7 may be selectively provided on the third connection pipe 183 to block the carrier gas provided from the carrier gas supply unit 160 from moving to the separator 130.

On the other hand, the carrier gas circulation residual salt and impurity removal device (100,200) according to an embodiment of the present invention is a gas outlet 190 for discharging the carrier gas circulated through the plurality of connecting pipes (181, 182, 183) to the outside. It may include. The gas discharge port 190 may be formed in the first connection pipe 181 connecting the pump 140 and the reactor 110, and the pipe line may be opened or closed through the operation of the second valve V2. have. In this case, a third valve V3 may be provided on the first connection pipe 181, and the third valve V3 may be provided between the gas outlet 190 and the reactor 110. Can be.

Accordingly, when it is necessary to discharge the carrier gas circulated through the plurality of connecting pipes (181, 182, 183), as shown in Figure 7 carrier gas circulating residual salt and impurities removal apparatus according to an embodiment of the present invention (100,200) ) Through the plurality of connecting pipes (181, 182, 183) through the pump 140 by changing the first valve (V1) and the third valve (V3) to the closed state and the second valve (V2) to the open state. The circulated carrier gas may be discharged to the outside through the gas discharge port 190.

In addition, the carrier gas circulating residual salt and impurity removing device (100,200) according to an embodiment of the present invention may include a surge tank 170 so that the carrier gas having a high pressure can be supplied to the reactor 110 side if necessary. Can be.

That is, the carrier gas circulating residual salt and impurity removing apparatus (100,200) according to an embodiment of the present invention, if you want to clean the injection means (113,213) provided in the reactor 110 to the injection means (113,213) side normal By supplying the carrier gas at a pressure higher than the pressure in the operating state, impurities or residual salts stuck to the injection means 113 and 213 can be removed.

To this end, the surge tank 170 may be connected to the first connecting pipe 181, the fourth valve (V4) and the reactor (for allowing or blocking the inlet of the carrier gas to the surge tank 170 side) It may further include a fifth valve (V5) for allowing or blocking the inlet of the carrier gas to the 110) side.

In this case, the surge tank 170 may be connected to the first connecting pipe 181 to be located between the third valve (V3) and the fifth valve (V5), according to an embodiment of the present invention Carrier gas circulating residual salt and impurity removal device (100,200) can be changed to an appropriate operation state by changing the flow path of the carrier gas by appropriately adjusting the plurality of valves (V1 ~ V7) described above.

Specifically, the carrier gas circulating residual salt and impurity removing device (100,200) according to an embodiment of the present invention is the first valve (V1), the second valve (V2) and the fourth valve ( V4) maintains the closed state and the third valve (V3), the fifth valve (V5) to the seventh valve (V7) to the open state by the carrier gas along the plurality of connecting pipes (181, 182, 183) 110 ), The separator 130 and the pump 140 to be circulated.

Through this, residual salts and impurities separated from the metal conversion body in the reactor 110 may be collected in the collecting unit 150 by being separated from the carrier gas after moving to the separator 130 along the carrier gas. .

In such a normal operation state, when cleaning of the injection means (113, 213) is necessary to change the second valve (V2), the fifth valve (V5) and the seventh valve (V7) as shown in Figure 6 By changing the open state of the first valve (V1), the third valve (V3) and the fourth valve (V4) to prevent the carrier gas from circulating along the plurality of connecting pipes (181, 182, 183).

Accordingly, the carrier gas supplied from the carrier gas supply unit 160 is blocked from being supplied to the reactor 110 and may only flow into the surge tank 170.

Accordingly, the pressure may be increased by continuously accumulating the carrier gas supplied from the carrier gas supply unit 160 in the surge tank 170.

In this state, as shown in FIG. 7, the first valve V1 and the third valve V3 are changed to the closed state, and the second valve V2, the fourth valve V4, and the seventh valve V7 are closed. By changing the open state), the carrier gas accumulated in the surge tank 170 can be supplied to the reactor 110 through the driving of the pump 140.

Through this, a high pressure carrier gas may be supplied to the injection means 113 and 213 of the reactor 110, and the high pressure carrier gas is injected into the reaction space S1 through the injection means 113 and 213. Impurities and residual salts stuck to (113,213) can be removed. Thereafter, the carrier gas may be moved to the separator 130 and the pump 140 along the second connecting pipe 182 and the third connecting pipe 183 and then discharged to the outside through the gas discharge port 190. .

In the drawings and description, the carrier gas circulating residual salt and impurity removing apparatus 100 and 200 according to an embodiment of the present invention is illustrated and described as including seven valves, but the present invention is not limited thereto. It should be noted that the number of uses can be changed as appropriate and can be replaced by a three-way valve depending on the installation location.

In addition, the pump 140 applied to the present invention may be a negative pressure pump, a positive pressure pump, or a hybrid pump capable of both a negative pressure pump and a positive pressure pump function.

In addition, the heating unit 120 applied to the present invention may be a heater or a heating furnace, as long as it can generate heat through power supply, it can be used without limitation.

Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments set forth herein, and those skilled in the art who understand the spirit of the present invention may add components within the scope of the same idea. Other embodiments may be easily proposed by changing, deleting, adding, etc., but this will also fall within the spirit of the present invention.

100,200: Carrier gas circulation salt and impurity removal device
110 reactor 111 reaction chamber
S1: reaction space S2: inflow space
112 gas distribution plate 113,213 injection means
113a: discharge tube 113b: injection hole
113c: blind portion 114: cooling fin
120: heating unit 130: separator
140: pump 150: collecting part
160: carrier gas supply unit 170: surge tank
181,182,183: connector 190: gas outlet
V1 ~ V7: Valve

Claims (11)

An apparatus for removing residual salts and fragments from a metal converting body converted into a metal form through a reduction process,
The residual salt contained in the metal converter is melted by heat provided from the outside to separate the residual salt and impurities from the metal converter, the residual salt and impurities are flowed by the carrier gas introduced from the outside, and cooling is performed. A reactor for converting the residual salts into powder form;
A heating unit disposed to surround the outside of the reactor so as to provide heat for melting the residual salt contained in the metal converter;
A separator for separating residual salts and impurities in powder form from a carrier gas introduced from the reactor; And
And a pump for circulating the carrier gas in the order of a reactor, a separator, and a reactor. The method of claim 1,
The reactor divides the reaction chamber having an inner space, the inner space into a reaction space and an inflow space, and a gas distribution plate in which the metal converting body is disposed, and a carrier gas to move from the inflow space to the reaction space. Carrier gas circulating residual salt and impurity removal device comprising at least one injection means provided in the plate. The method of claim 2,
The carrier gas circulating residual salt and impurity removing device is a carrier in which residual salt and impurities separated from the metal conversion body are cooled through a temperature gradient by rising inside the reaction space together with a carrier gas ejected through the injection means. Gas circulation residual salt and impurity removal device. The method of claim 2,
The heating unit is disposed to surround a part of the height of the reaction chamber forming the gas distribution plate and the reaction space of the entire height of the reaction chamber, the reaction chamber is not disposed with respect to the partial height of the upper side of the overall height. Carrier gas circulation salt and impurities removal device. The method of claim 4, wherein
The heating unit is disposed to surround the outside of the reaction chamber to form the inlet space carrier gas type residual salt and impurities removal device. The method of claim 2,
The reaction chamber includes at least one cooling fin protruding outward,
The cooling fins are carrier gas circulating residual salt and impurities removal device is formed to be located on the upper side of the reaction space. The method of claim 2,
The injection means is a carrier gas circulating residual salt and impurity removal device including a discharge pipe protruding a predetermined height from the gas distribution plate. The method of claim 7, wherein
The injection means may include at least one injection hole formed in the discharge tube to discharge the carrier gas to the outside, and a cover portion disposed to cover the injection hole while allowing external discharge of the carrier gas through the injection hole. Carrier gas circulation residual salt and impurity removal device comprising. The method of claim 1,
The carrier gas circulation residual salt and impurity removal device further comprises a surge tank connected between the pump and the reactor,
The surge tank is a carrier gas circulation residual salt and impurities removal device for storing the carrier gas transferred from the pump through the operation of at least one open-close valve to increase the pressure of the carrier gas. The method of claim 1,
The carrier gas circulating residual salt and impurity removing device further includes a collecting part detachably connected to the separator,
The collection unit is a carrier gas circulating residual salt and impurity removal device is stored in the residual salt and impurities in the form of powder separated through the separator. A method for removing residual salts and fragments from a metal converter converted into a metal form through a reduction process by circulating a carrier gas between a reactor and a separator through a pump,
The residual salt contained in the metal converter is melted through heat provided from the inside of the reactor to separate residual salts and impurities from the metal converter, and the residual salts and impurities separated from the metal converter are transferred to the carrier gas. The residual salt is converted into a powder form by rising and cooling through the movement of; And
Residual salt and impurities in powder form introduced with the carrier gas in the reactor is separated from the carrier gas through a separator; carrier gas circulation residual salt and impurities removal method comprising a.

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