KR20110129194A - Heating furnace for gas preheater - Google Patents

Heating furnace for gas preheater Download PDF

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Publication number
KR20110129194A
KR20110129194A KR1020100048687A KR20100048687A KR20110129194A KR 20110129194 A KR20110129194 A KR 20110129194A KR 1020100048687 A KR1020100048687 A KR 1020100048687A KR 20100048687 A KR20100048687 A KR 20100048687A KR 20110129194 A KR20110129194 A KR 20110129194A
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South Korea
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heat
preheater
furnace
gas
insulating material
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KR1020100048687A
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Korean (ko)
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KR101216506B1 (en
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이윤경
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주식회사 원준
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/3077—Arrangements for treating electronic components, e.g. semiconductors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/32—Casings
    • F27B9/34—Arrangements of linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/36—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Details (AREA)

Abstract

PURPOSE: A feed gas preheater for a furnace is provided to enhance the reaction of atmospheric gas with a non-fired material by preheating atmospheric gas to be supplied. CONSTITUTION: In a furnace(10) wherein an insulator encloses the interior of the furnace, gas supply pipes(20a,20b) provide atmospheric gas, and a sagger(60) is loaded with non-fired materials by the driving of a transfer roller(40), a feed gas preheater(70) is installed in the gas supply pipes passing through the insulator so that the atmospheric gas is heat-exchanged with the latent heat of the insulator. The preheater has partitions(71) arranged in a zigzag form.

Description

가열로용 공급가스 예열기{heating furnace for gas preheater} Heating furnace for gas preheater

본 발명은 가열로용 공급가스 예열기에 관한 것으로, 더욱 상세하게는 가열로의 내부를 통과해 소성과정을 거치는 미소성 소재와 반응해 활성화시키는 분위기 가스가, 로 본체 단열재에 설치되는 예열기를 통해 열교환 되어 공급되게 함으로써, 미소성 소재와의 반응 활성화를 향상시킬 수 있도록 발명된 것이다.
The present invention relates to a feed gas preheater for a furnace, and more particularly, an atmosphere gas that reacts with and activates an unbaked material that passes through an interior of a furnace and undergoes a calcination process, and is heat-exchanged through a preheater installed in a furnace body insulation. It is invented to improve the activation of the reaction with the unbaked material by allowing it to be supplied.

일반적으로 미소성 소재는 전자제품이 요구하는 특성을 얻기 위하여 내화갑에 적재되어 가열로 내부를 통과하면서, 상기 가열로 내부에서 공급되어 분사되는 분위기 가스 및 히터의 고온으로 반응이 활성화되어, 전자부품이 요구하는 특성을 가지도록 하는 공정이 수행된다.In general, the unbaked material is loaded on the fireproof bag and passed through the inside of the furnace in order to obtain the characteristics required by the electronics, and the reaction is activated by the high temperature of the atmosphere gas and the heater supplied and sprayed from the inside of the furnace, and the electronic component A process is carried out to have this desired property.

즉, 미소성 소재의 경우 전자기기에 사용되는 모듈을 생산하기까지는 미소성 소재를 가공하여야 하며, 세라믹 미소성 소재를 활용한 제품 생산에 있어 중요한 것이 미소성 소재를 균일성 있게 가공하는 기술에 있다.In other words, in the case of unbaked material, it is required to process unbaked material until the module used for electronic devices is produced, and the important thing in the production of products using ceramic unbaked material is the technology to process unbaked material uniformly. .

상기의 미소성 소재를 소성 가공하는 과정에는 성형시 사용된 바인더의 효과적 제거가 품질 특성을 제어하는 중요한 공정변수로 대두되고 있으며, 이러한 바인더의 제거를 위해 가열로에서 900℃ 내지 1300℃ 온도로 열처리하는 공정이 있게 된다.In the process of plastic processing of the above unbaked material, effective removal of the binder used in molding has emerged as an important process variable to control quality characteristics, and heat treatment is performed at a temperature of 900 ° C. to 1300 ° C. in a heating furnace to remove such a binder. There is a process to do it.

이러한, 열처리 공정을 위해서 가열로에는 원통형의 봉 형상으로 이루어진 소정길이의 로울러가 본체 프레임에 회전 가능하게 지지된 상태로 구동수단의 동력으로 상기 로울러들이 각각 일정속도로 회전할 수 있게 구성되어 있다.For this heat treatment process, the rollers are configured to be rotated at a constant speed by the power of the driving means in a state in which a roller having a predetermined length having a cylindrical rod shape is rotatably supported by the main body frame.

또, 가열로 내부에는 상기 로울러의 상, 하부에 각각 설치되는 상부히터 및 하부히터가 형성되고, 가열로 내부로 분위기가스를 공급하는 가스공급관이 본체의 하부와 상부에 위치되게 설치된다. In addition, an upper heater and a lower heater are respectively provided at upper and lower portions of the roller, respectively, and a gas supply pipe for supplying an atmosphere gas into the heating furnace is disposed at the lower and upper portions of the main body.

따라서, 로울러 상부에 놓여져 미소성 소재 등이 수용된 내화갑(sagger)이 로울러를 따라 가열로의 몸체를 지나면서, 가열로의 내부에서 고온의 열과 분위기 가스에 의해 열처리가 이루어지는 것이다.
Therefore, a sagger placed on the top of the roller and accommodating an unbaked material is passed through the body of the furnace along the roller, and the heat treatment is performed by high temperature heat and atmospheric gas inside the furnace.

그러나, 가열로 내부공간으로 외부의 분위기 가스가 공급 분사되면, 그 온도 차이로 인해 로 내부공간의 온도를 저하시키는 폐단이 발생하였다.However, when an external atmosphere gas is injected and injected into the internal space of the heating furnace, a closed end lowers the temperature of the internal space due to the temperature difference.

또, 상기 가열로 내부공간의 저하된 온도를 상승시키기 위해 내부 공간을 다시 가열하여야 하는 어려움과, 낮은 온도의 분위기 가스로 인해 미소성 소재와의 반응이 저하되어 소성과정에 불량이 발생되는 문제점이 있었다.In addition, it is difficult to heat the internal space again in order to increase the lowered temperature of the internal space of the heating furnace, and the reaction with the unbaked material is lowered due to the low-temperature atmosphere gas is a problem that the defect occurs in the firing process there was.

따라서, 상기 가열로 내부의 온도를 상승시키기 위한 가열시간 및 에너지의 과도한 소비로 작업시간 증가 및 금전적인 손해가 발생하였다.Therefore, an increase in working time and monetary damages occur due to excessive consumption of heating time and energy for raising the temperature inside the heating furnace.

본 발명은 이러한 종래 분위기가스 공급의 문제점을 감안하여 안출한 것이며, 그 목적은 가열로의 내부공간을 감싸는 단열재를 통과하는 가스공급관에 예열기를 설치하여 단열재의 잠열과 열교환 되면서 온도가 상승된 분위기가스를 공급되도록 해, 로 내부공간의 온도가 유지되도록 한 가열로용 공급가스 예열기를 제공하는 데 있다.The present invention has been devised in view of the problems of the conventional atmosphere gas supply, the object is to install a preheater in the gas supply pipe passing through the heat insulating material surrounding the inner space of the heating furnace by heat exchange with the latent heat of the heat insulating material gas atmosphere It is to provide a feed gas preheater for the furnace to be supplied so that the temperature of the internal space of the furnace is maintained.

본 발명의 다른 목적은, 단열재를 관통하는 가스공급관의 일단부에 내부로 격벽이 지그재그 패턴을 갖게 성형된 예열기를 설치함으로써, 열교환 효율이 향상되도록 한 가열로용 공급가스 예열기를 제공하는 데 있다.Another object of the present invention is to provide a feed gas preheater for a furnace in which heat exchange efficiency is improved by providing a preheater formed with a zig-zag pattern partitioned therein at one end of a gas supply pipe passing through a heat insulating material.

본 발명의 또 다른 목적은, 예열된 분위기 가스가 공급되어 열처리 공정중인 미소성 소재와의 반응을 더욱 활성화시켜, 제품 품질이 향상되도록 한 가열로용 공급가스 예열기를 제공하는 데 있다.
Still another object of the present invention is to provide a feed gas preheater for a furnace in which a preheated atmosphere gas is supplied to further activate a reaction with an unbaked material during a heat treatment process, thereby improving product quality.

본 발명은 상기의 목적을 달성하기 위하여, 단열재(11)가 가열로(10) 내부공간을 감싸도록 형성되며, 로 본체 내부로 분위기가스를 공급하는 가스공급관(20a)(20b)과, 상부히터(30a)와 하부히터(30b)가 설치되어, 이송 로울러(40)의 구동으로 미소성 소재가 적재된 내화갑(60)이 통과하면서 열처리하는 것에 있어서, In order to achieve the above object, the heat insulating material 11 is formed to surround the internal space of the heating furnace 10, and gas supply pipes 20a and 20b for supplying an atmosphere gas into the furnace body, and an upper heater. 30a and the lower heater 30b are provided, and heat-processing while passing through the fireproof pack 60 in which the unbaked material was loaded by the drive of the feed roller 40,

상기 단열재(11)를 관통하는 가스공급관(20a)(20b)에 예열기(70)가 설치되어, 단열재(11)의 잠열과 예열기(70)를 통과하는 분위기 가스가 열교환 되어 달성 된다.The preheater 70 is installed in the gas supply pipes 20a and 20b passing through the heat insulator 11, and the latent heat of the heat insulator 11 and the atmospheric gas passing through the preheater 70 are exchanged.

또, 상기 예열기(70)는 함체 내부로 격벽(71)이 지그재그 패턴을 갖게 성형되어 구성한다.In addition, the preheater 70 is configured by forming the partition wall 71 into a zigzag pattern inside the enclosure.

그리고, 상기 예열기(70)는 단열재(11)의 잠열을 회수하도록 단열재(11)내부에 수용된 상태로 설치한다.
The preheater 70 is installed in a state accommodated in the heat insulating material 11 to recover the latent heat of the heat insulating material 11.

이러한 구조로 이루어진 본 발명에 의하면 내화갑에 적재된 미소성 소재와 반응해 활성화하는 분위기가스를 로 내부 온도와 유사하게 공급되도록 함으로써, 로 내부의 온도유지 및 미소성 소재와의 활성화가 향상된다.According to the present invention having such a structure, by supplying an atmosphere gas that reacts with and activates the unbaked material loaded on the fireproof box, similar to the inside temperature of the furnace, the temperature retention inside the furnace and the activation of the unbaked material are improved.

또, 예열장치를 통해 잠열을 회수함으로써, 에너지의 낭비를 방지하고, 예열시간을 단축시켜 제품 생산성을 향상시킬 수 있다.In addition, by recovering the latent heat through the preheating device, it is possible to prevent waste of energy, shorten the preheating time, and improve product productivity.

따라서, 미소성 소재를 열처리해 요구되는 특성을 균일하게 얻을 수 있으며, 작업효율을 증대시킬 수 있는 매우 유용한 발명인 것이다.
Therefore, it is a very useful invention that can uniformly obtain the required characteristics by heat-treating the unbaked material, and can increase the work efficiency.

도 1은 본 발명인 가열로의 내부 구성을 도시한 개략 단면도.
도 2는 본 발명인 예열장치의 확대도.
도 3은 본 발명인 예열장치의 실시 예를 도시한 확대도.
BRIEF DESCRIPTION OF THE DRAWINGS The schematic sectional drawing which shows the internal structure of the heating furnace of this invention.
Figure 2 is an enlarged view of the present invention preheater.
Figure 3 is an enlarged view showing an embodiment of the present invention preheater.

이하, 첨부된 도면과 관련하여 상기 목적을 달성하기 위한 본 발명의 구성과 작동 례를 살펴보면 다음과 같다.Hereinafter, a configuration and an operation example of the present invention for achieving the above object with reference to the accompanying drawings are as follows.

본 발명인 가열로용 공급가스 예열기는, 가열로의 내부를 통과해 소성과정을 거치는 미소성 소재와 반응해 활성화시키는 분위기 가스가, 로 본체 단열재에 설치되는 예열기를 통해 열교환 되어 공급되게 함으로써, 미소성 소재와의 반응 활성화를 향상시킬 수 있도록 발명된 것이다.The feed gas preheater for a furnace according to the present invention is an unfired gas by allowing heat to be supplied through a preheater installed in the furnace body heat insulating material, which reacts with and activates an unbaked material that passes through the inside of the furnace and undergoes a calcination process. It is invented to improve the reaction activation with the material.

즉, 도 1에서와 같이 가열로(10)에는 내부 이송통로를 따라 로울러(40)가 연속적으로 설치되어, 구동수단의 동력으로 상기 로울러(40)들이 일정속도로 회전되게 구성된다.That is, as shown in FIG. 1, the rollers 40 are continuously installed in the heating furnace 10 along the inner transfer path, and the rollers 40 are rotated at a constant speed by the power of the driving means.

또, 가열로(10) 내부공간에는 상기 로울러(40)의 상,하부에 고온의 복사열을 발산하는 히터(30a)(30b)와, 가열로 내부공간에 분위기가스를 분사하는 가스공급관(20a)(20b)을 각각 설치하였다.In addition, heaters 30a and 30b dissipating high-temperature radiant heat in the upper and lower portions of the roller 40 in the inner space of the furnace 10, and a gas supply pipe 20a for injecting atmospheric gas into the inner space of the furnace 40. (20b) was installed respectively.

또한, 가열로(10)에 설치되는 히터(30a)(30b)는 내부에 수용된 열원을 이용해 복사열을 고온으로 발산하게 하여, 미소성 소재와 분위기가스가 반응해 활성화시키는 열처리 공정을 하도록 한다.In addition, the heaters 30a and 30b installed in the heating furnace 10 allow radiant heat to be radiated to a high temperature by using a heat source contained therein so as to perform a heat treatment process in which the unbaked material and the atmosphere gas react with each other to be activated.

그리고, 가열로(10) 상부에는 분위기 가스 및 열처리 과정에서 발생된 각종 오염가스를 배출하기 위한 배기장치(50)가 형성되어 구성한다.In addition, an exhaust device 50 for discharging various pollutant gases generated in the atmosphere gas and the heat treatment process is formed on the heating furnace 10.

즉, 가열로(10)는 내부공간에 하부 가스공급관(20b), 하부히터(30b), 이송 로울러(40), 상부 가스공급관(20a), 상부히터(30a), 배기장치(50)가 순차적으로 설치되어 구성된다.That is, in the heating furnace 10, the lower gas supply pipe 20b, the lower heater 30b, the transfer roller 40, the upper gas supply pipe 20a, the upper heater 30a, and the exhaust device 50 are sequentially disposed in the internal space. Installed and configured.

또, 상기와 같이 가열로(10)에는, 내부공간에서 고온의 복사열로 이송통로를 따라 통과하는 내화갑(60)에 적재된 미소성 소재에 열을 전달하는 열처리 공정을 수행하므로, 가열로(10)의 몸체에는 내부공간을 둘러싸는 내화 단열재(11)가 적층되게 형성된다.In addition, as described above, the heating furnace 10 performs a heat treatment process for transferring heat to the unbaked material loaded in the saggar 60 passing through the transfer passage with high temperature radiant heat in the inner space, The body of 10) is formed so that the refractory heat insulating material 11 surrounding the inner space is laminated.

그리고, 상기의 단열재(11)는 온도차이 및 제품단가로 인해 로 내부에서 외부로 고온에 견딜 수 있는 내화 단열재(11)가 순차적으로 적층하는 형태로 설치되도록 하여 효율성을 증대시키도록 하였다.In addition, the heat insulating material 11 is to increase the efficiency by installing a fire-resistant heat insulating material 11 that can withstand the high temperature from the inside to the outside of the furnace due to the temperature difference and the product cost.

즉, 가열로(10) 내부의 열처리 공정에 사용되는 900℃ 내지 1300℃ 온도에 대응할 수 있도록, 단열재(11)는 내측으로 1600℃에서 외측으로 1000℃에 대응하는 단열재(11)가 순차적으로 적층되게 설치한 것이다.That is, in order to correspond to the temperature of 900 ° C to 1300 ° C used in the heat treatment process inside the heating furnace 10, the heat insulating material 11 is laminated in the heat insulating material 11 corresponding to 1000 ° C from 1600 ° C inward to the outside in order. It is installed.

그리고, 가열로(10)와 단열재(11)를 관통해 로 내부로 설치되는 가스공급관(20a)(20b)에, 몸체를 단열재(11)내부에 수용되게 한 예열기(70)를 설치함으로써, 상기 단열재(11)의 잠열과 예열기(70)를 통과하는 분위기가스가 열교환 되도록 한다.Then, by installing a preheater 70 in which the body is accommodated in the heat insulating material 11 in the gas supply pipes 20a and 20b which penetrate the heating furnace 10 and the heat insulating material 11 and are installed inside the furnace. The latent heat of the heat insulating material 11 and the atmospheric gas passing through the preheater 70 are to be heat exchanged.

이때, 상기 상부가스공급관(20a)은 로 내부에서 관이 관통되게 설치되어 하부로 분위기가스를 분사시키게 되는 구조를 갖고 있어, 예열기(70)의 형상을 소형으로 제작하며, 하부가스공급관(20b)은 가열로(10) 하부에서 수직되게 분사하여야 하므로, 예열기(70)에서 분사관(72)을 다수개 형성시킨 길이 방향으로 확장된 예열기(70)로 제작 형성한다.At this time, the upper gas supply pipe (20a) has a structure that is installed through the pipe in the furnace to inject the atmosphere gas to the lower, to make the shape of the preheater 70 to a small size, the lower gas supply pipe (20b) Since it is to be vertically injected from the lower portion of the heating furnace 10, the preheater 70 is formed by forming a preheater 70 extended in the longitudinal direction in which a plurality of injection pipes 72 are formed.

이와 같이 구성된 예열기(70)를 통해 미소성 소재를 열처리하기 위한 분위기가스의 공급과정은 다음과 같다.The supply process of the atmosphere gas for heat-treating the unbaked material through the preheater 70 configured as described above is as follows.

상기, 상부히터(30a)와 하부히터(30b)의 열원으로 고온상태를 유지하고 있는 가열로(10)의 내부공간에는, 로 내부의 상, 하부에 구비된 가스공급관(20a)(20b)에서 분위기가스가 로울러(40)방향으로 분사되며, 상기 분위기가스는 로울러(40)상부에 놓여져 이송통로를 따라 진행하는 내화갑에 적재된 미소성 소재와 접촉되어 반응하면서 활성화된다.In the inner space of the heating furnace 10 which maintains a high temperature state as the heat source of the upper heater 30a and the lower heater 30b, the gas supply pipes 20a and 20b provided in the upper and lower parts of the furnace are provided. Atmospheric gas is sprayed in the direction of the roller 40, and the atmospheric gas is placed on the roller 40 and is activated while contacting and reacting with the unbaked material loaded on the fireproof sacks traveling along the transport passage.

이때, 상기 미소성 소재에는, 고온의 열과 분위기가스에 반응하면서 발생되는 오염가스와 배기가스가 상승기류를 타고 배기장치(50)를 통해 외부로 배출되어 진다.At this time, the unbaked material is discharged to the outside through the exhaust device 50 through the air flow of the contaminated gas and exhaust gas generated while reacting with the high temperature heat and atmospheric gas.

그리고, 도 2 및 도 3에서와 같이 가열로(10)의 단열재(11) 내부에서 가스공급관(20a)(20b)에 예열기(70)가 각각 구비되도록 하여 공급되는 분위기가스가 단열재(11)의 잠열과 서로 열교환 되면서, 온도가 상승된 분위기가스를 로 내부로 공급시켜 분사한다.As shown in FIGS. 2 and 3, the preheater 70 is provided in each of the gas supply pipes 20a and 20b in the heat insulator 11 of the heating furnace 10 to supply the atmospheric gas to the heat insulator 11. While exchanging heat with the latent heat, the atmosphere gas with elevated temperature is supplied to the furnace and sprayed.

상기 예열기(70)는 함체 내부로 지그재그 패턴을 갖는 격벽(71)이 다수개 형성되어 구성된 것으로, 분위기가스의 이동거리를 연장함과 아울러 함체 내부를 통과하면서 단열재(11)의 잠열과 열교환이 용이하게 이루어지도록 하였다.The preheater 70 is formed by forming a plurality of partition walls 71 having a zigzag pattern inside the enclosure, and extends the moving distance of the atmosphere gas and easily passes through the interior of the enclosure and heat exchanges with the latent heat 11. To be done.

특히, 하부가스공급관(20b)은 길이방향으로 연장된 함체를 갖고 내부 격벽(71)을 이동하면서 열교환 된 분위기가스를 예열기(70) 상부에 구비된 다수개의 분사관(72)을 통해 로 내부에 분사시킴으로써, 미소성 소재에 균일하게 접촉되어 반응할 수 있다.In particular, the lower gas supply pipe (20b) has a housing extending in the longitudinal direction and moves the inner partition wall 71 to the inside of the furnace through a plurality of injection pipes 72 provided in the upper portion of the preheater (70). By spraying, it can react by contacting unbaked material uniformly.

즉, 예열기(70)에서 열교환 되어 상부가스공급관(20a)을 통해 하부로 분사된 분위기가스와, 하부가스공급관(20b)을 통해 분사되어 하부히터(30b)를 통과하며 상승기류로 이동되는 분위기가스가, 로내부 온도를 감소시키지 않으면서도 내화갑(60)내부에 적재된 미소성 소재와 충분히 접촉해 반응하도록 한 것이다.That is, the atmosphere gas heat-exchanged in the preheater 70 and injected into the lower portion through the upper gas supply pipe 20a, and the atmospheric gas injected through the lower gas supply pipe 20b and passed through the lower heater 30b and moved to the upward airflow. A is made to react in sufficient contact with the unbaked material loaded inside the saggar 60 without reducing the furnace internal temperature.

이러한, 예열기(70)는 가스공급관과 용접 및 볼트 결합되게 형성하여, 단열재(11)의 내부에 수용되도록 함으로써, 로 내부온도와 외부온도에 영향을 받지 않고 단열재(11)로 전달되는 잠열과 분위기가스를 열교환 시켜 효율을 향상시키도록 제작된 것이다.The preheater 70 is formed to be welded and bolted to the gas supply pipe to be accommodated in the heat insulating material 11, so that the latent heat and atmosphere are transmitted to the heat insulating material 11 without being affected by the furnace internal temperature and the external temperature. It is manufactured to improve efficiency by heat-exchanging gas.

이상에서 설명한 본 발명은 전술한 실시 예 및 도면에 의해 한정되는 것은 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 있어 명백할 것이다.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It will be clear to those who have.

10 - 가열로 11 - 단열재
20a - 상부가스공급관 20b - 하부가스공급관
30a - 상부히터 30b - 하부히터
40 - 로울러 50 - 배기장치
60 - 내화갑 70 - 예열기
71 - 격벽 72 - 분사관10-furnace 11-insulation
20a-Upper gas supply pipe 20b-Lower gas supply pipe
30a-Upper heater 30b-Lower heater
40-roller 50-exhaust
60-Fireproof 70-Preheater
71-Bulkhead 72-Jet

Claims (2)

단열재(11)가 가열로(10) 내부공간을 감싸도록 형성되며, 로 본체 내부로 분위기가스를 공급하는 가스공급관(20a)(20b)과, 상부히터(30a)와 하부히터(30b)가 설치되어, 이송 로울러(40)의 구동으로 미소성 소재가 적재된 내화갑(60)이 통과하면서 열처리하는 것에 있어서,
상기 단열재(11)를 관통하는 가스공급관(20a)(20b)에 예열기(70)가 설치되어, 단열재(11)의 잠열과 예열기(70)를 통과하는 분위기 가스가 열교환 되게 한 것을 특징으로 한 가열로용 공급가스 예열기.
The heat insulating material 11 is formed to surround the internal space of the heating furnace 10, and gas supply pipes 20a and 20b for supplying an atmosphere gas into the furnace body are installed, and an upper heater 30a and a lower heater 30b are installed. In the heat treatment while passing through the fireproof box 60 loaded with the unbaked material by the drive of the transfer roller 40,
The preheater 70 is installed in the gas supply pipes 20a and 20b passing through the heat insulator 11 so that the latent heat of the heat insulator 11 and the atmospheric gas passing through the preheater 70 are heat-exchanged. Furnace feed gas preheater.
청구항 1에 있어서, 상기 예열기(70)는 함체 내부로 격벽(71)이 지그재그 패턴을 갖도록 성형하고, 단열재(11)의 잠열을 회수하도록 단열재(11)내부에 수용된 상태로 설치됨을 특징으로 한 가열로용 공급가스 예열기.The heating method according to claim 1, wherein the preheater 70 is formed so that the partition wall 71 has a zigzag pattern and is accommodated inside the heat insulating material 11 to recover the latent heat of the heat insulating material 11 into the enclosure. Furnace feed gas preheater.
KR1020100048687A 2010-05-25 2010-05-25 heating furnace for gas preheater KR101216506B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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