KR102519322B1 - Exhaust flue structure of heat treatment furnace for powder - Google Patents

Abstract

The present invention relates to an exhaust flue structure of a heat treatment furnace for powder, which comprises a chimney unit positioned to protrude toward the upper side of the heat treatment furnace for powder and discharging combustion gas of the heat treatment furnace for powder, and a powder storage drawer unit separably coupled to a horizontal exhaust section of the chimney unit and collecting falling powder included in the combustion gas, so that the powder included in the combustion gas of the heat treatment furnace for treating powder is easily removed with the drawer structure, thereby solving the problems with product quality and production facilities due to cleaning of an exhaust port, improving the product quality, and ensuring the stability of heat treatment work.

Description

Exhaust flue structure of heat treatment furnace for powder {EXHAUST FLUE STRUCTURE OF HEAT TREATMENT FURNACE FOR POWDER}

The present invention relates to an exhaust flue structure of a heat treatment furnace for powder, and more particularly, to an exhaust flue structure for a heat treatment furnace for powder, which heat-treats powder, that is, exhausts internal combustion gas from a heat treatment furnace, such as a sintering furnace for firing the powder.

In general, a powder heat treatment furnace for heat treatment of powder is provided with an exhaust flue for discharging combustion gas therein.

One example of a heat treatment furnace for powder is a furnace for powder that is prepared by firing a cathode active material of a secondary battery.

The sintering furnace for powder is manufactured by putting the raw material powder of the cathode active material in a powder container and firing it at a temperature of 400 ° C to 1,100 ° C while transporting it in the sintering furnace.

In the case of a heat treatment furnace for powder, such as a furnace for powder, which heat-treats powder, an exhaust flue is provided for discharging combustion gas.

An exhaust flue of a heat treatment furnace for conventional powder is provided with a horizontal section to prevent powder included in exhaust gas from falling into the furnace.

In the horizontal section of the conventional exhaust flue, powder, etc. included in the exhaust gas is accumulated, and depending on the characteristics of the powder, reactions such as stickiness appear in various forms with moisture, resulting in frequent clogging of the exhaust port.

If the exhaust flue is clogged in the heat treatment furnace for powder, the pressure inside the furnace rises, and various problems arise in product quality and production facilities.

Therefore, when clogging occurs in the exhaust flue of the heat treatment furnace for powder, the pressure inside the furnace rises, and during production, the user manually cleans the inside of the exhaust port using a cleaning tool. There was a problem in which workers were exposed.

In addition, in the heat treatment furnace for powder, when cleaning the exhaust flue for a long time, the airtightness of the furnace is not formed, which causes problems in product quality and production facilities.

Korean Utility Model Registration No. 0154812 "Exhaust structure of tantalum element firing furnace" (registered on May 24, 1999)

An object of the present invention is to provide an exhaust flue structure of a heat treatment furnace for powder, which can prevent clogging of an exhaust port by simply removing powder included in combustion gas of a heat treatment furnace for heat treatment of powder using a drawer structure.

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In order to achieve the above object of the present invention, one embodiment of the exhaust flue structure of the heat treatment furnace for powder according to the present invention is positioned to protrude toward the upper side of the heat treatment furnace for powder, and a chimney for discharging combustion gas from the heat treatment furnace for powder and a powder storage drawer unit detachably coupled to the horizontal exhaust port of the chimney unit and in which the powder contained in the combustion gas is dropped and collected.
In the present invention, the chimney is connected to the first vertical exhaust port connected to the inside of the heat treatment furnace for powder, the horizontal exhaust port connected to the first vertical exhaust port, and the second vertical exhaust connected to the horizontal exhaust port and the upper end is pierced to the outside. section, and the horizontal exhaust section may have a shape in which both end sides are open to the side of the chimney and the first vertical exhaust section.
In the present invention, the powder storage drawer unit is installed on the lower surface of the horizontal exhaust port when the lower surface is seated, the lower surface is erected on the front side of the chimney, and the front portion blocks the horizontal exhaust port opened to the side of the chimney. Including a pair of side parts erected on both sides, the back and top surfaces may have an open form.

In the present invention, the chimney unit opens and closes the chimney body member formed so that the first vertical exhaust port and the second vertical exhaust port are open to the upper side, and the exhaust port that is located on the upper surface of the chimney body and opens and closes the open first vertical exhaust port. may include absences.

In the present invention, the exhaust opening/closing member may be a fireproof block member seated on an upper surface of the chimney body member and separated from the chimney body member to open an upper portion of the first vertical exhaust port.

In the present invention, the chimney body member has a block seating surface on which the refractory block member is seated, and the first vertical exhaust port is opened to the upper side, and the second vertical exhaust port is positioned on one side of the block seating surface toward the upper side. The protrusion positioned to be open is positioned to protrude, and the fireproof block member may be seated on the block seating surface in a state in which one side is in close contact with the outer surface of the protrusion.

In the present invention, the cross-sectional area of the first vertical exhaust port is smaller than the cross-sectional area of the horizontal exhaust port and the cross-sectional area of the second vertical exhaust port, and the cross-sectional area of the horizontal exhaust port is smaller than the cross-sectional area of the second vertical exhaust port. Thus, the flow rate of the combustion gas is the fastest in the first vertical exhaust section, and the flow rate can be sequentially slowed in the horizontal exhaust section and the second vertical exhaust section.

In the present invention, the second vertical exhaust section may include a first vertical flow passage connected to the horizontal exhaust port, and a second vertical flow passage connected to the upper side of the first vertical flow passage and wider than the first vertical flow passage. there is.

In the present invention, the horizontal length of the horizontal exhaust port is formed longer than the width of the second vertical exhaust port, the extra length is formed on both sides of the first vertical exhaust port, and the second vertical exhaust port is formed in the horizontal exhaust port. The extra length formed between the first vertical exhaust port and the first vertical exhaust port may be 40 to 10% of the width of the first vertical exhaust port.

In the present invention, the lower surface of the drawer unit for storing powder may be formed so that at least a portion overlaps a portion of the extra length formed between the second vertical exhaust port and the first vertical exhaust port.

In the present invention, the chimney unit further includes a protective casing portion surrounding a side portion and an upper surface, the protective casing portion is provided with a combustion gas outlet for discharging combustion gas from the upper side of the second vertical exhaust port on the upper surface, An opening/closing unit for withdrawing a drawer may be provided that is opened and closed so as to withdraw the drawer unit for storing powder.

In the present invention, the chimney portion is connected to the first vertical exhaust port at one side of the first vertical exhaust port connected to the inside of the heat treatment furnace for powder, and the first horizontal first horizontal exhaust port is connected to one side of the chimney portion. An exhaust port, a second vertical exhaust port connected to the first horizontal exhaust port and having an upper end pierced to the outside, a second vertical exhaust port connected to the first vertical exhaust port from the other side of the first vertical exhaust port and opened to the other side of the chimney. 2 horizontal exhaust ports, a third vertical exhaust port connected to the second horizontal exhaust port and having an upper end pierced to the outside, and the drawer for powder storage is detachable from the first horizontal exhaust port on one side of the chimney. It may include a first drawer member that is coupled and a second drawer member that is detachably coupled to the second horizontal exhaust port on the other side of the chimney unit.

An embodiment of the exhaust flue structure of the heat treatment furnace for powder according to the present invention further includes a first horizontal exhaust opening and closing portion for opening and closing the inlet of the first horizontal exhaust opening and a second horizontal exhaust opening and closing portion for opening and closing the inlet of the second horizontal exhaust opening. can include

In the present invention, the first drawer member and the second drawer member may be provided with a first open/close display unit and a second open/close display unit for notifying whether the first horizontal exhaust opening/closing unit and the second horizontal exhaust opening/closing unit are open or closed. there is.

In the present invention, the first drawer member and the second drawer member include a separation detection sensor unit for detecting separation from the first horizontal exhaust port and the second horizontal exhaust port, and the first horizontal exhaust port opening and closing part and the first horizontal exhaust port. The operation of the second horizontal exhaust port opening and closing unit may be controlled through a signal detected by the separation detection sensor unit.

In the present invention, when the first drawer member is separated, the first horizontal exhaust opening/closing unit closes the first horizontal exhaust opening, and the second horizontal exhaust opening/closing unit opens the second horizontal exhaust opening, and the second drawer member When is separated, the second horizontal exhaust opening/closing unit may close the second horizontal exhaust opening, and the first horizontal exhaust opening opening/closing unit may open the first horizontal exhaust opening.

In the present invention, the powder storage drawer unit is installed on the lower surface of the horizontal exhaust port, the lower surface portion is erected on the front side of the lower surface portion, and the front portion blocks the horizontal exhaust port opened to the side of the chimney portion, and both sides of the lower surface portion. It may include a pair of side parts standing on the side, a rotating back plate that can be rotatably hinged to the end side of the lower surface and erected, and a back plate operating unit that rotates the rotating back plate to erect or lay the rotating back plate.

In the present invention, the lower portion may have a shorter length than the side portion, and the rotating rear plate portion may have a length protruding toward the end of the side portion when the rotating plate portion is unfolded.

In the present invention, the thick plate operating unit includes an operating wire member connected to the rotating rear plate unit, a wire winding reel unit rotatably positioned on the front portion and around which the operating wire member is wound, a rotation motor unit rotating the wire winding reel unit, and the It may include an operation switch unit for controlling the operation of the rotary motor unit.

In the present invention, a thick plate stopper portion may be protruded from an inner surface of the side surface portion to restrict rotation of the rotating thick plate portion while being caught by the rotating thick plate portion.

In the present invention, the upper end of the rotating rear plate may be positioned so that the locking jaw part protrudes from the entrance of the horizontal exhaust port in a state in which the rotating rear plate is seated in the horizontal exhaust port.

The present invention solves the problem of product quality and production facilities caused by cleaning the exhaust port by simply removing the powder contained in the combustion gas of the heat treatment furnace for heat treatment of the powder with a drawer structure, improves the product quality, and improves the stability of the heat treatment operation It has a securing effect.

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1 is a perspective view showing an embodiment of an exhaust flue structure of a heat treatment furnace for powder according to the present invention.
2 is a cross-sectional view showing an embodiment of an exhaust flue structure of a heat treatment furnace for powder according to the present invention.
3 is a cross-sectional view showing another embodiment of an exhaust flue structure of a heat treatment furnace for powder according to the present invention.
4 is a cross-sectional view showing another embodiment of an exhaust flue structure of a heat treatment furnace for powder according to the present invention.
5 is a perspective view showing an embodiment of a drawer unit for storing powder in an exhaust flue structure of a heat treatment furnace for powder according to the present invention.
6 is an enlarged cross-sectional view of an embodiment of a drawer unit for storing powder in an exhaust flue structure of a heat treatment furnace for powder according to the present invention.

The present invention is described in more detail.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Prior to the detailed description of the present invention, the terms or words used in the present specification and claims described below should not be construed as being limited to common or dictionary meanings. Therefore, since the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various equivalents that can replace them at the time of the present application It should be understood that there may be waters and variations.

1 is a perspective view showing an embodiment of an exhaust flue structure of a heat treatment furnace for powder according to the present invention, and FIG. 2 is a cross-sectional view showing an embodiment of an exhaust flue structure of a heat treatment furnace for powder according to the present invention.

Referring to FIGS. 1 and 2, an embodiment of an exhaust flue structure of a heat treatment furnace for powder according to the present invention will be described in detail below.

One embodiment of the exhaust flue structure of the heat treatment furnace for powder according to the present invention includes a chimney 100 positioned to protrude toward the upper side of the heat treatment furnace for powder and discharging combustion gas from the heat treatment furnace for powder.

The chimney unit 100 is connected to a first vertical exhaust section 102 connected to the inside of the heat treatment furnace for powder, a horizontal exhaust section 101 connected to the first vertical exhaust section 102, and a horizontal exhaust section 101 and a second vertical exhaust port 103 through which the upper end is pierced to the outside.

In addition, the horizontal exhaust section 101 has both ends open to the side of the chimney unit 100 and the first vertical exhaust section 102.

To the side of the chimney unit 100, a powder storage drawer 200 is detachably coupled to the horizontal exhaust port 101.

The powder storage drawer 200 is positioned standing on the front side of the lower surface 210 and the lower surface 210 seated on the lower surface of the horizontal exhaust section 101, and is horizontally open to the side of the chimney 100. The front part 220, which blocks the exhaust port 101, and a pair of side parts 230 built on both sides of the lower part 210 have a rear and upper surface open form.

The lower surface part 210 of the drawer part 200 for powder storage is seated on the lower surface of the horizontal exhaust section 101, and the side part 230 of the drawer part 200 for powder storage is each of the horizontal exhaust section 101. For example, being positioned in close contact with the side portion 230 .

The drawer unit 200 for storing powder has an open rear and upper surface, and connects the first vertical exhaust unit 102 and the second vertical exhaust unit 103 through the horizontal exhaust unit 101, and heat treatment furnace for powder. The combustion gas inside is discharged to the outside atmosphere through the first vertical exhaust port 102 and the inside of the powder storage drawer 200, that is, the horizontal exhaust port 101 and the second vertical exhaust port 103.

The powder included in the combustion gas discharged through the second vertical exhaust port 103 falls and accumulates on the lower surface of the powder storage drawer 200 .

A handle part 221 is provided on the front of the drawer part 200 for powder storage, so that a worker can hold it by hand and easily separate or combine it from the chimney part 100.

The combustion gas generated during the heat treatment of the heat treatment furnace for powder is discharged to the outside through the first vertical exhaust section 102, the horizontal exhaust section 101, and the second vertical exhaust section 103 of the chimney unit 100.

As the flow rate of the combustion gas decreases while passing through the second vertical exhaust section 103, the powder included in the combustion gas falls and is accumulated on the lower surface of the drawer 200 for powder storage.

The powder accumulated in the powder storage drawer 200 can be easily removed by separating the powder storage drawer 200.

That is, the powder storage drawer 200 is periodically separated from the chimney 100 to simply remove the collected powder, and then coupled to the horizontal exhaust section 101 again to easily perform the powder removal operation.

In addition, the chimney unit 100 includes a chimney body member 110 formed so that the first vertical exhaust port 102 and the second vertical exhaust port 103 are open to the upper side, and the first vertical exhaust port located on the upper surface of the chimney body portion and opened. It includes an exhaust port opening/closing member 120 that opens and closes the exhaust port 102 .

The chimney unit 100 can simply clean the inside of the first vertical exhaust port by opening the upper portion of the first vertical exhaust port 102 through the exhaust port opening/closing member 120 .

The exhaust outlet opening/closing member 120 is a fireproof block member 121 that is seated on the upper surface of the chimney body member 110 and is separated from the chimney body member 110 to open the upper portion of the first vertical exhaust port 102. example

The chimney body member 110 has a block seating surface on which the refractory block member 121 is seated, the first vertical exhaust port 102 is open to the top, and the second vertical exhaust port 103 on one side of the block seating surface. ) is positioned so that the protrusion 111 is open to the upper side, and the fireproof block member 121 is seated on the block seating surface in a state in which one side is in close contact with the outer surface of the protrusion 111, and the first vertical exhaust Close the top of section 102.

The fireproof block member 121 is supported on the outer surface of the protruding portion 111 in a state where one side is seated on the block seating surface, thereby stably maintaining the first vertical exhaust port 102 in a state of being blocked, and the first vertical exhaust port. It prevents combustion gases from being discharged into the open upper side of 102.

When the heat treatment furnace for powder is operated for a long time, sticky foreign substances may be attached to the inner circumferential surface of the first vertical exhaust section 102 due to powder, moisture, and other foreign substances contained in the combustion gas, which may cause clogging of the first vertical exhaust section 102. It should also be cleaned periodically.

The chimney unit 100 easily performs the cleaning operation of the first vertical exhaust section 102 by simply opening the first vertical exhaust section 102 by separating the refractory block member 121 from the chimney body member 110. can do.

On the other hand, the cross-sectional area of the first vertical exhaust port 102 is smaller than the cross-sectional area of the horizontal exhaust port 101 and the cross-sectional area of the second vertical exhaust port 103, and the cross-sectional area of the horizontal exhaust port 101 is the second vertical exhaust port. It is formed smaller than the cross-sectional area of the section 103, so the flow rate of the combustion gas is the fastest in the first vertical exhaust section 102, and the flow rate is sequentially slowed in the horizontal exhaust section 101 and the second vertical exhaust section 103. .

The flow rate of the combustion gas is the fastest in the first vertical exhaust section 102, thereby preventing powder from falling within the first vertical exhaust section 102, and in the horizontal exhaust section 101 and the second vertical exhaust section 103. As the flow rate of the combustion gas is sequentially slowed, most of the powder contained in the combustion gas falls from the second vertical exhaust section 103 and accumulates in the powder storage drawer 200, and powder is added to the combustion gas discharged to the outside. is included as a minimum.

In addition, the second vertical exhaust section 103 includes a first vertical flow passage connected to the horizontal exhaust section 101 and a second vertical flow passage connected to the upper side of the first vertical flow passage and wider than the first vertical flow passage. .

The second vertical exhaust section 103 lowers the flow rate of the combustion gas step by step through the first vertical flow passage portion and the second vertical flow passage portion having different widths of the flow passage to prevent powder contained in the combustion gas from being discharged to the outside, It is dropped so that it can be piled up in the drawer unit 200 for storing powder.

The second vertical channel portion may be disposed in an area corresponding to the drawer unit 200 for storing powder. For example, the entire lower surface of the second vertical channel portion facing the drawer unit 200 for storing powder may be arranged to overlap with the drawer unit 200 for storing powder in a vertical direction. Accordingly, the powder of the combustion gas flowing through the horizontal and vertical exhaust ports 101, 102, and 103 can be induced to be accumulated in the powder storage drawer 200.

The horizontal length of the horizontal exhaust section 101 is formed longer than the width of the second vertical exhaust section 103, and the extra length is formed on both sides of the first vertical exhaust section 102, so that in the second vertical exhaust section 103 Falling powder is prevented from falling into the first vertical exhaust section 102 .

As an example, the extra length formed between the second vertical exhaust section 103 and the first vertical exhaust section 102 in the horizontal exhaust section 101 is 40 to 10% of the width of the first vertical exhaust section 102. do.

Alternatively, the extra length formed between the second vertical exhaust section 103 and the first vertical exhaust section 102 in the horizontal exhaust section 101 is 15% to 35% of the width of the first vertical exhaust section 102 Take that as an example.

Alternatively, the extra length formed between the second vertical exhaust section 103 and the first vertical exhaust section 102 in the horizontal exhaust section 101 is 20% to 30% of the width of the first vertical exhaust section 102 Take that as an example.

The extra length formed between the second vertical exhaust section 103 and the first vertical exhaust section 102 in the horizontal exhaust section 101 is the width of the second vertical exhaust section 103, that is, the second vertical exhaust section ( In order to secure the size of 103), it is preferable to have a minimum length that prevents powder from falling into the first vertical exhaust section 102.

In addition, the lower surface portion 210 of the powder storage drawer 200 is formed to overlap at least a portion of the extra length portion formed between the second vertical exhaust port 103 and the first vertical exhaust port 102, 2 It is positioned to receive as much powder as possible that has fallen from the vertical exhaust section 103.

3 is a cross-sectional view showing another embodiment of an exhaust flue structure of a heat treatment furnace for powder according to the present invention. Referring to FIG. 3, another embodiment of the exhaust flue structure of a heat treatment furnace for powder according to the present invention is a chimney 100 It further includes a protective casing portion 300 surrounding the side portion 230 and the top surface of the.

The protective casing part 300 is provided with a combustion gas outlet 310 for discharging combustion gas from the upper side of the second vertical exhaust section 103 on the upper surface, and can withdraw the powder storage drawer 200 on the side. An opening/closing unit 320 for withdrawing the drawer which is opened and closed is provided.

The drawer pull-out opening/closing unit 320 may be variously modified and implemented in an opening/closing structure such as a known door structure for opening/closing the opening, so a detailed description thereof will be omitted.

In addition, the protective casing unit 300 further includes an upper opening/closing unit 330 for opening and closing the first vertical exhaust port 102 .

The upper opening/closing unit 330 may be variously modified and implemented in an opening/closing structure such as a known door structure for opening/closing the opening, and a more detailed description thereof will be omitted.

The upper opening/closing part 330 is located on the upper side of the first vertical exhaust port 102, that is, on the upper side of the exhaust port opening/closing member 120, and when the exhaust port opening/closing member 120 is opened, the first vertical exhaust port 102 Allow the top to open.

The upper opening/closing part 330 is opened to separate the exhaust outlet opening/closing member 120, that is, the fireproof block member 121, and also opens the first vertical exhaust port 102 when the fireproof block member 121 is separated. The cleaning work of the first vertical exhaust port 102 is enabled.

Since the chimney part 100 discharges the combustion gas of the heat treatment furnace for powder, it is heated to a high temperature by the combustion gas, so when a worker directly contacts it, it can cause burns to the worker, and people passing by are also contacted carelessly and cause burns. There is a risk of wearing it.

The protective casing unit 300 is positioned around the chimney unit 100 so that an insulating space is formed between the chimney unit 100 and thus may occur when workers or people passing by inadvertently directly contact the chimney unit 100. Injury accidents such as burns can be prevented.

As an example, the protective casing unit 300 is made of a heat insulating material that blocks heat transfer, and a heat insulating material (not shown) is positioned between the protective casing unit 300 and the chimney unit 100 to transmit from the chimney unit 100. Be aware that you can also block heat.

4 is a cross-sectional view showing another embodiment of an exhaust flue structure of a heat treatment furnace for powder according to the present invention. Referring to FIG. 4, the chimney 100 is a first vertical exhaust section connected to the inside of the heat treatment furnace for powder. (102), a first horizontal exhaust section 101a connected to the first vertical exhaust section 102 at one side of the first vertical exhaust section 102 and opened to one side of the chimney unit 100, the first horizontal exhaust A second vertical exhaust section 103 connected to the section 101a and having an upper end pierced to the outside, connected to the first vertical exhaust section 102 on the other side of the first vertical exhaust section 102, and the other side of the chimney unit 100 A second horizontal exhaust port 101b opened to the side, and a third vertical exhaust port 104 connected to the second horizontal exhaust port 101b and having an upper end pierced to the outside.

In addition, the powder storage drawer 200 is a first drawer member 201 detachably coupled to the first horizontal exhaust section 101a on one side of the chimney unit 100, and the other side of the chimney unit 100. includes a second drawer member 202 detachably coupled to the second horizontal exhaust section 101b.

The first drawer member 201 and the second drawer member 202 each have a rear surface and an open top surface, so combustion gas discharged to the first vertical exhaust area 102 passes through the first horizontal exhaust area 101a. It is guided to move to the second vertical exhaust section 103 or move to the third vertical exhaust section 104 through the second horizontal exhaust section 101b.

In addition, the first drawer member 201 and the second drawer member 202 block the first horizontal exhaust section 101a on one side of the chimney unit 100 with the front part 220, respectively, and the chimney unit 100 Block the second exhaust section on the other side of the

In the exhaust flue structure of the heat treatment furnace for powder according to the present invention, any one of the first drawer member 201 and the second drawer member 202 is separated from the chimney unit 100 to selectively remove the powder collected in the corresponding drawer. there is.

In addition, the exhaust flue structure of the heat treatment furnace for powder according to the present invention includes a first horizontal exhaust opening/closing unit 400 for opening and closing the first horizontal exhaust opening 101a and a second horizontal exhaust opening opening/closing unit opening and closing the second horizontal exhaust opening 101b (500) is further included.

The first horizontal exhaust opening/closing unit 400 and the second horizontal exhaust opening opening/closing unit 500 are the boundary between the first vertical exhaust opening 102 and the first horizontal exhaust opening 101a, and the first vertical exhaust opening 102 and the second vertical exhaust opening 102, respectively. It is located at the boundary of the horizontal exhaust port 101b and opens and closes the first horizontal exhaust outlet opening/closing portion 400 and the second horizontal exhaust opening/closing portion 101b, respectively, between the first horizontal exhaust opening/closing portion 400 and the second horizontal exhaust opening 101b. Keep one open and the other closed.

The first horizontal exhaust opening/closing unit 400 and the second horizontal exhaust opening/closing unit 500 open and close the inlet of the first horizontal exhaust opening 101a and the entrance of the second horizontal exhaust opening 101b by moving the opening and closing doors, respectively. It is an example, and it is revealed that it can be variously modified and implemented using various known opening and closing structures.

In the first drawer member 201 and the second drawer member 202, open ones of the first horizontal exhaust opening/closing part 400 and the second horizontal exhaust opening 101b, that is, the first horizontal exhaust opening/closing part 400 and the second horizontal exhaust opening/closing part 400 and the second A first opening/closing display unit 201a and a second opening/closing display unit 202a are provided to inform whether the horizontal exhaust opening/closing unit 500 is open or closed.

The first open/close indicator 201a and the second open/close display 202a are displayed when the first horizontal exhaust opening/closing unit 400 and the second horizontal exhaust opening/closing unit 500 are open and when the first horizontal exhaust opening/closing unit 400 and the second horizontal exhaust opening/closing unit 400 are open. As an example, it is a display lamp that notifies the color of light emitted when the exhaust opening/closing part 500 is closed.

For example, the indicator lamp emits green light when the first horizontal exhaust opening/closing part 400 and the second horizontal exhaust opening/closing part 500 are open, and the first horizontal exhaust opening/closing part 400 and the second horizontal exhaust opening/closing part 500 emit green light. When it is closed, it emits red light so that the operator can easily check whether it is open or closed.

The first horizontal exhaust opening/closing part 400 and the second horizontal exhaust opening opening/closing part 500 open the first vertical exhaust section 102 and the second horizontal exhaust section 101b alternately, and the first drawer member 201 and the second drawer The cleaning cycle can be increased by allowing the powder to be divided and accumulated on the member 202 .

In addition, when either side of the first drawer member 201 and the second drawer member 202 is separated, the horizontal exhaust section 101 where the separated side is located is closed, and the horizontal exhaust section 101 on the non-separated side is closed. ) is opened.

The first drawer member 201 and the second drawer member 202 are provided with a separation detection sensor unit 203 for detecting separation from the first horizontal exhaust section 101a and the second horizontal exhaust section 101b, The operation of the first horizontal exhaust opening/closing unit 400 and the second horizontal exhaust opening/closing unit 500 is controlled through a signal detected by the separation detection sensor unit 203 .

As an example, the separation detection sensor unit 203 is provided on the lower surface of the first drawer member 201 and the lower surface of the second drawer member 202, respectively, and the first vertical exhaust section 102 and the second horizontal The first drawer member (( 201) and the second drawer member 202 may be a distance sensor that detects separation, and in addition, the first drawer member 201 and the second drawer member 202 are separated from the chimney 100 It is revealed that it can be variously modified and implemented using a known sensor capable of detecting what is being done.

That is, when the first drawer member 201 is separated, the first horizontal exhaust opening/closing unit 400 closes the first horizontal exhaust opening 101a, and the second horizontal exhaust opening opening/closing unit 500 closes the second horizontal exhaust opening 101b. is opened so that the combustion gas is discharged through the second horizontal exhaust port 101b to the third vertical exhaust port 104.

In addition, when the second drawer member 202 is separated, the second horizontal exhaust opening/closing unit 500 closes the second horizontal exhaust opening 101b, and the first horizontal exhaust opening opening/closing unit 400 closes the first horizontal exhaust opening 101a. is opened so that the combustion gas is discharged through the first horizontal exhaust port 101a to the second vertical exhaust port 103.

When either side of the first drawer member 201 or the second drawer member 202 is separated, the first horizontal exhaust opening/closing part 400 and the second horizontal exhaust opening opening/closing part 500 are separated from the horizontal exhaust opening 101 ) is closed and the horizontal exhaust port 101 on the other side is opened so that the quality of products manufactured in the heat treatment furnace for powder can be maintained uniformly while maintaining a constant exhaust pressure.

In addition, the first horizontal exhaust port opening/closing unit 400 and the second horizontal exhaust port opening/closing unit 500 are used to clean the second vertical exhaust port 103 or the third vertical exhaust port 104 when cleaning the first horizontal exhaust port 101a and By selectively opening and closing the second horizontal exhaust port 101b, it is possible to maintain uniform quality of products manufactured in the heat treatment furnace for powder while maintaining a constant exhaust pressure even during cleaning of the vertical exhaust port.

5 is a perspective view showing an embodiment of a drawer 200 for storing powder in the exhaust flue structure of the heat treatment furnace for powder according to the present invention, and FIG. 6 is a perspective view showing the powder storage in the exhaust flue structure of the heat treatment furnace for powder according to the present invention It is a cross-sectional view showing an enlarged view of one embodiment of the drawer unit 200 for use.

Referring to FIGS. 5 and 6, the powder storage drawer 200 is positioned on the front side of the lower surface 210 and the lower surface 210 seated on the lower surface of the horizontal exhaust section 101, and is located in the chimney. A front part 220 blocking the horizontal exhaust port 101 opened to the side of 100, a pair of side parts 230 built on both sides of the lower part 210, and a lower part 210 rotatable on the end side It may include a rotating back plate part 240 that can be hinged and erected, and a heavy plate operating unit 250 that rotates the rotating back plate part 240 to raise or lay the rotating back plate part 240.

The rotating rear plate part 240 is positioned in a flat state with the lower part 210 in a horizontally flat state in a laid state, and is seated on the lower surface of the horizontal exhaust section 101.

When the lower portion 210 has a shorter length than the side portion 230, the rotating rear plate portion 240 is an example of having a length that protrudes toward the end of the side portion 230 when it is unfolded.

The rotating rear plate part 240 is seated in the horizontal exhaust section 101 in an unfolded state and is positioned in a horizontal state with the lower part 210 so that powder can be accumulated on the upper part.

The rotating back plate 240 is erected to block the rear side of the lower surface portion 210, and when the powder storage drawer 200 is separated from the horizontal exhaust section 101, the powder is discharged through the open rear side of the first vertical exhaust section 102. ) or the powder accumulated in the first horizontal exhaust section 101a is prevented from leaking out.

At the upper end of the rotating back plate 240, the locking jaw 241 is protruded from the end side of the horizontal exhaust section 101, that is, at the entrance in a state where the rotating back plate 240 is seated on the horizontal exhaust section 101. Thus, the rotating back plate 240 can be stably positioned in an unfolded state.

The thick plate operating unit 250 includes an operating wire member 251 connected to the rotating thick plate unit 240, a wire reel unit 252 rotatably positioned on the front portion 220 and around which the operating wire member 251 is wound, A rotation motor unit 253 for rotating the wire take-up reel unit 252 and an operation switch unit 254 for controlling the operation of the rotation motor unit 253 are included.

The operating switch unit 254 is mounted on the handle unit 221 located in front of the drawer unit 200 for powder storage, and is operated when the operator grabs the handle unit 221 so that the operating wire member 251 is the wire reel unit. It is possible to control the operation of the rotary motor unit 253 so that it can be wound or unwound around (252).

When the operation switch unit 254 is pressed once by the operator, the rotary motor unit 253 is operated to wind the operation wire member 251 around the wire reel unit 252, and the rotating plate unit 240 can be lifted and erected. .

In addition, when the operation switch unit 254 is pressed again by the operator in the state in which the rotating back plate unit 240 is erected, the rotary motor unit 253 is rotated in the opposite direction, and the wire is unwound from the wire reel unit 252 to rotate the back plate unit ( 240) may be positioned flat with the original position, that is, the bottom portion 210 while being unfolded again.

The back plate operation unit 250 may include a small rotation motor and an operation switch unit 254 provided at the hinge of the rotation back plate unit 240 to control the operation of the small rotation motor. In addition, the rotation back plate unit 240 It is revealed that it can be implemented by being transformed into another known structure that can be rotated or placed horizontally.

The rotation motor unit 253 is rotated only by a predetermined number of revolutions in response to a signal from the operation switch unit 254, and the winding length of the operating wire member 251 wound around the wire winding reel unit 252 and the wire winding reel unit 252 ), the rotating back plate part 240 is erected at a predetermined angle through the unwinding length, and the rotating back plate part 240 can be returned to its original position.

A thick plate stopper 260 protrudes from the inner surface of the side part 230 to restrict rotation of the rotating thick plate part 240 while being caught thereon.

The thick plate stopper part 260 limits the rotation of the rotating thick plate part 240 so that the rotating thick plate part 240 can be erected at 90 degrees, and includes a contact switch so that when the rotating thick plate part 240 is contacted, the rotation motor part 253 ) is automatically stopped so that the wire take-up reel 252 no longer winds the operating wire member 251.

The thick plate stopper part 260 is positioned so that the rotating thick plate part 240 can be erected at an angle of less than 90 degrees, preferably less than 80 degrees, so that the rotary motor part 253 rotates in the reverse direction while the operating wire member 251 ) is unwound from the wire reel unit 252, the rotating rear plate unit 240 unfolds under its own weight so that it can be seated on the horizontal exhaust section 101.

In addition, the locking jaw part 241 is located at the upper end side of the rotating thick plate part 240 and moves the center of gravity of the rotating thick plate part 240 to the upper side so that when the operating wire member 251 is unwound from the wire reel part 252 It allows the rotating thick plate part 240 to unfold smoothly under its own load, and when the operating wire member 251 is unwound from the wire take-up reel part 252 by inserting a weight to increase the weight inside, the rotating thick plate part 240 itself It should be noted that it can unfold more smoothly with a load.

The rotating back plate 240 safely stores the powder in the powder storage drawer 200 while being erected when the powder storage drawer 200 is separated from the horizontal exhaust section 101, and the powder storage drawer 200 ), it is possible to prevent an accident in which the powder accumulated in the heat treatment furnace is prevented from flowing out to the outside through the first vertical branch section.

In addition, the rotating back plate 240 is unfolded when the powder storage drawer 200 separated from the horizontal exhaust section 101 is coupled to the horizontal exhaust section 101 again, and is seated on the upper surface of the horizontal exhaust section 101. The powder falling from the second vertical exhaust section 103 can be accumulated.

The present invention solves the problem of product quality and production facilities caused by cleaning the exhaust port by simply removing the powder contained in the combustion gas of the heat treatment furnace for heat treatment of the powder with a drawer structure, improves the product quality, and improves the stability of the heat treatment operation can be secured

It is to be noted that the present invention is not limited to the above-described embodiments, but can be variously modified and implemented without departing from the gist of the present invention, which is included in the configuration of the present invention.

100: chimney part 101: horizontal exhaust section
101a: first horizontal exhaust section 101b: second horizontal exhaust section
102: first vertical exhaust section 103: second vertical exhaust section
104: third vertical exhaust section 110: chimney body member
111: protrusion 120: exhaust opening and closing member
121: fireproof block member 200: drawer for powder storage
201: first drawer member 201a: first open/close indicator
202: second drawer member 202a: second open/close indicator
203: separation detection sensor unit 210: lower surface
220: front part 221: handle part
230: side part 240: rotating back plate part
241: locking jaw part 250: back plate operating part
251: operating wire member 252: wire winding reel
253: rotation motor unit 254: operation switch unit
260: plate stopper part 300: protective casing part
310: Combustion gas outlet 320: Drawer withdrawal opening and closing part
330: upper opening and closing part 400: first horizontal exhaust opening and closing part
500: second horizontal exhaust opening and closing part

Claims (21)

a chimney unit protruding toward the upper side of the heat treatment furnace for powder and discharging combustion gas from the heat treatment furnace for powder; and
It is detachably coupled to the horizontal exhaust port of the chimney and includes a drawer for storing powder in which the powder included in the combustion gas falls and gathers,
The chimney is provided with a first vertical exhaust port connected to the inside of the heat treatment furnace for powder, a horizontal exhaust port connected to the first vertical exhaust port, and a second vertical exhaust port connected to the horizontal exhaust port and having an upper end open to the outside. and
The horizontal exhaust section has a shape in which both end sides are open to the side surface of the chimney and the first vertical exhaust section,
The cross-sectional area of the first vertical exhaust port is smaller than the cross-sectional area of the horizontal exhaust port and the cross-sectional area of the second vertical exhaust port, and the cross-sectional area of the horizontal exhaust port is smaller than the cross-sectional area of the second vertical exhaust port,
The powder storage drawer unit,
When the portion is seated on the lower surface of the horizontal exhaust port;
a front portion standing on the front side of the lower portion and blocking a horizontal exhaust port opened to the side of the chimney;
A pair of side parts built on both sides of the lower part; and
Including; rotational back plate portion that can be rotatably hinged and erected on the end side of the lower surface portion;
The rotating rear plate part is seated on the lower surface of the horizontal exhaust port in a flat state horizontally with the lower surface part in a flat state, and powder is accumulated on the upper part, and in a standing state, the rear side of the lower part is blocked and the powder accumulated on the upper part is recalled. It is moved to the upper part of the part to collect and prevent the powder from leaking out,
The exhaust flue structure of a heat treatment furnace for powder, characterized in that the lower surface portion has a shorter length than the side portion, and the rotating rear plate portion has a length extending toward an end side of the side portion.
delete delete The method of claim 1,
The chimney unit includes a chimney body member formed so that the first vertical exhaust port and the second vertical exhaust port are open to the upper side; and
The exhaust flue structure of the heat treatment furnace for powder, characterized in that it comprises an exhaust opening and closing member located on the upper surface of the chimney body and opening and closing the first vertical exhaust opening.
The method of claim 4,
The exhaust flue structure of the heat treatment furnace for powder, characterized in that the exhaust opening and closing member is a refractory block member seated on the upper surface of the chimney body member and separated from the chimney body member to open the upper portion of the first vertical exhaust port.
The method of claim 5,
The chimney body member has a block seating surface on which the refractory block member is seated, and the first vertical exhaust port is opened to the upper side, and the second vertical exhaust port is positioned on one side of the block seating surface to be opened to the upper side. The protrusion to be is positioned to protrude,
The refractory block member is an exhaust flue structure of a heat treatment furnace for powder, characterized in that one side is seated on the block seating surface in a state of being in close contact with the outer surface of the protrusion.
delete The method of claim 1,
The second vertical exhaust section includes a first vertical flow passage connected to the horizontal exhaust port and a second vertical flow passage connected to an upper side of the first vertical flow passage and formed wider than the first vertical flow passage. Exhaust flue structure of heat treatment furnace for powder.
The method of claim 1,
The horizontal length of the horizontal exhaust port is formed longer than the width of the second vertical exhaust port, and an extra length is formed on both sides of the first vertical exhaust port,
An exhaust flue structure of a heat treatment furnace for powder, characterized in that the excess length formed between the second vertical exhaust port and the first vertical exhaust port in the horizontal exhaust port is 40 to 10% of the width of the first vertical exhaust port. .
The method of claim 9,
An exhaust flue structure of a heat treatment furnace for powder, characterized in that the lower surface of the drawer for storing powder is formed to overlap at least a portion of the excess length formed between the second vertical exhaust port and the first vertical exhaust port.
The method of claim 1,
Further comprising a protective casing portion surrounding a side portion and an upper surface of the chimney portion,
The protective casing portion is provided with a combustion gas outlet for discharging combustion gas from the upper side of the second vertical exhaust port on the upper surface, and a drawer withdrawal opening and closing portion that is opened and closed to withdraw the powder storage drawer portion is provided on the side An exhaust flue structure of a heat treatment furnace for powder, characterized in that.
The method of claim 1,
The chimney portion is connected to the first vertical exhaust port connected to the inside of the heat treatment furnace for powder, and connected to the first vertical exhaust port at one side of the first vertical exhaust port and opened to one side of the chimney portion. A first horizontal exhaust port, A second vertical exhaust port connected to the first horizontal exhaust port and having an upper end pierced to the outside, a second horizontal exhaust port connected to the first vertical exhaust port from the other side of the first vertical exhaust port and opened to the other side of the chimney. section, a third vertical exhaust port connected to the second horizontal exhaust port and having an upper end pierced to the outside;
The powder storage drawer unit,
a first drawer member detachably coupled to the first horizontal exhaust port at one side of the chimney; and
The exhaust flue structure of the heat treatment furnace for powder, characterized in that it comprises a second drawer member detachably coupled to the second horizontal exhaust port on the other side of the chimney.
The method of claim 12,
The exhaust flue structure of the heat treatment furnace for powder, further comprising a first horizontal exhaust opening/closing portion opening and closing the inlet of the first horizontal exhaust opening and a second horizontal exhaust opening opening/closing portion opening and closing the inlet of the second horizontal exhaust opening.
The method of claim 13,
Characterized in that the first drawer member and the second drawer member are provided with a first open/close display unit and a second open/close display unit for notifying whether the first horizontal exhaust opening/closing unit and the second horizontal exhaust opening/closing unit are open and closed. Exhaust flue structure of heat treatment furnace for powder.
The method of claim 13,
The first drawer member and the second drawer member include a separation detection sensor unit for detecting separation from the first horizontal exhaust port and the second horizontal exhaust port,
The exhaust flue structure of the heat treatment furnace for powder, characterized in that the operation of the first horizontal exhaust opening and closing part and the second horizontal exhaust opening and closing part is controlled through a signal detected by the separation detection sensor unit.
The method of claim 15
When the first drawer member is separated, the first horizontal exhaust opening/closing unit closes the first horizontal exhaust opening, and the second horizontal exhaust opening opening/closing unit opens the second horizontal exhaust opening.
When the second drawer member is separated, the second horizontal exhaust opening/closing part closes the second horizontal exhaust opening, and the first horizontal exhaust opening opening/closing part opens the first horizontal exhaust opening. struct.
delete delete The method of claim 1,
The powder storage drawer unit,
Further comprising a rear plate operating unit for rotating the rotating rear plate to raise or lay the rotating rear plate,
The back plate operating part,
an operating wire member connected to the rotating rear plate;
a wire winding reel rotatably positioned on the front portion and around which the operating wire member is wound;
a rotation motor unit for rotating the wire winding reel unit; and
Exhaust flue structure of heat treatment furnace for powder, characterized in that it comprises an operation switch unit for controlling the operation of the rotary motor unit.
The method of claim 1,
An exhaust flue structure of a heat treatment furnace for powder, characterized in that a thick plate stopper portion protruding from an inner surface of the side surface portion to restrict rotation of the rotating thick plate portion while engaging the rotating thick plate portion.
The method of claim 1,
An exhaust flue structure of a heat treatment furnace for powder, characterized in that, at the upper end of the rotating rear plate, a hooking jaw portion that is caught at the entrance of the horizontal exhaust port in a state where the rotating rear plate is seated in the horizontal exhaust port protrudes.

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