KR101835497B1 - Two rows sending pusher type continuity furnace - Google Patents

Abstract

The present invention relates to a two rows sending pusher type continuity furnace, more specifically, which can reduce the amount of used ambient gas and heating energy due to reduction of an internal area of a furnace, and further, provide economic benefits by reducing a facility area. According to the present invention, a pusher type furnace is provided, wherein a rail (11) is arranged in a lower portion of a path, and a plurality of setters (1) mounted on a guide road large plate (2) of the rail (11) are moved. Moreover, substitution chambers (14, 15) are individually provided to an entrance and an exit of the pusher type furnace.

Description

[0001] The present invention relates to a two row sending pusher type continuity furnace,

The present invention relates to a two-row conveying push-type continuous firing furnace, and more particularly, to a two-row conveying push-type continuous firing furnace which is capable of feeding and conveying a setter containing a molded product in two rows, in which a ceiling structure in a furnace is flattened in a flat state, So that it is possible to uniformly supply the atmospheric gas while preventing the sag due to the weight, to reduce the amount of the atmospheric gas used and the heating energy due to the reduction of the internal area of the furnace, Has been invented.

Generally, until various modules such as CRT for lithium battery and monitor color, electronic products (MLCC, CHIP, CAPACITOR, HTCC, LTCC) and LCD / PDP phosphor powder are produced and modules used for electronic devices are produced, When producing electronic parts utilizing the powder material, the powder or electronic parts are subjected to the firing process in the firing furnace.

What is important in the production of products using powder materials is the technique of plasticizing CRT raw materials for coloring and powder for electronic parts materials such as manganese, nickel, and lithium uniformly in a heating furnace.

In order to move the setter in a state where the periphery of the sintering furnace is heated with high temperature, the sintering furnace is installed in the lower portion of the inner passage so as to be long along the conveying direction. The sintering furnace is driven by a driving means, And moves inside.

Setters are stacked in roughly 7-8 steps on a platform that rests on top of the rails.

The inside of the firing furnace is provided with heaters for heating the temperature, an air supply / exhaust device, a cooling device, and the like.

In order to heat the powder raw materials of the electronic component, it is necessary to heat up the heaters to a predetermined temperature, a temperature elevating step, a holding step of maintaining the temperature elevated by the temperature increasing step for a desired time, and a cooling step of cooling the calcined powder raw material A cooling step, and a firing chamber of various conditions through atmosphere gas are required.

On the other hand, the powder raw material for electronic parts may require rapid cooling by a gas such as nitrogen, argon, oxygen, or water.

Ceramic barriers are also arranged to control the heat exchange of the internal temperature and the flow of the atmospheric gas and air when the temperature and atmosphere conditions inside the firing furnace are different as well as the boundary of each step.

The baking furnace is a pusher type furnace suitable for producing a stable temperature distribution and a high-temperature and high-temperature product, a roller heatsheet furnace for baking a powder containing lithium and various compositions at 1300 to obtain desired properties, (Roller Hearth Kiln), Mesh Belt Type which is easy to maintain temperature maintenance and maintenance, and which is used for firing electronic products as well as various ceramic products in a continuous manner is known .

The types and types of firing of the electronic products to be completed are various according to the kind of various atmospheric gases and temperature characteristics.

In order to complete the electronic product, it is necessary to pass through the inside of the firing furnace having at least two different conditions.

Patent Document: Korean Patent Laid-open No. 10-2013-0097527 (published on September 03, 2013) Korean Patent No. 10-1078410 (registered date October 25, 2011) Korean Patent Laid-Open No. 10-2005-0078755 (published on August 08, 2005)

Conventionally, in the pusher type firing furnace, productivity and work efficiency are low because the passage through which the setter is moved is made in one row.

In the case of adding two pusher type baking furnaces to increase the productivity, for example, a facility area of not less than 2 times is required, and economical efficiency is lowered due to exhaustion of atmosphere gas and consumption of energy for maintaining the inside of the baking furnace at a high temperature .

On the other hand, the inner structure of the furnace is classified into a flat type having a flat ceiling, a bridge type having a triangular roof structure, and an arch type having a circular structure. The bridging type and the arch type, The energy consumption for maintaining the consumption amount of the atmospheric gas and the temperature is large, which is disadvantageous in terms of economy.

However, in the case of the flat type, there is an economical advantage in that the internal space is small as compared with other types, whereas when it is designed in a wide width, it can not withstand the weight of the bricks, , And the operating temperature is applied only to a size where the thermal expansion and shrinkage change is not large when the temperature is less than 1000 ° C.

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems, and it is an object of the present invention to provide a pusher-type firing furnace which can increase the productivity and the operation efficiency without increasing the area of the equipment by manufacturing two rows of passageways through which the setter is moved.

Another object of the present invention is to provide a pusher-type firing furnace which can reduce the internal volume of the furnace and reduce energy consumption and energy consumption, .

It is another object of the present invention to provide a method of manufacturing a soft brick and a heat insulating member which are capable of absorbing thermal expansion and contraction despite the high temperature by the ceiling support member and stably supporting the weight of the soft bricks and the heat insulating members stacked thereon, To provide a firing furnace.

In order to achieve the above object, the present invention is characterized in that a rail (11) is disposed at a lower portion of a passageway formed in an upper portion, a lower portion, left and right side walls from the inlet to the outlet,

A plurality of setters 1 placed on the guide path board 2 of the rail 11 are moved and heated to a predetermined temperature by the upper heater 12 and the lower heater 13, (14) and (15) at the inlet and the outlet, respectively,

The first passage (100) and the second passage (200) are arranged in two rows on both sides of the support pillars (20) standing up at the center of the passage,

The upper portion of the ceiling portion 3 forming the upper ceiling of the first passage 100 and the second passage 200 is divided into a central member 31 and end members 32 and 33, The upper partition walls 30 connected in a state of supporting the load by the inclined surfaces 34 and 35 formed at the upper and lower surfaces of the partition wall 30 are arranged at regular intervals,

The center of the upper partitions 30 is supported by the support pillars 20 and both are supported by the side partitions 40 and 41,
The support pillar 20 has a hole 21 at its center and the atmospheric gas supplied through the gas pipe 17 connected to the central member 31 through the injection holes 22 on both sides thereof is passed through the first passage 100 and the second passage 200, respectively,
The side partitions 40 disposed at the positions of the support pillars 20 are formed by piercing the injection holes 42 for supplying the atmospheric gas to the inside.

Here, the fitting protrusions 31a and the receiving grooves 31b are formed on both sides of the center member 31 of the upper partition wall 30 and the fitting protrusions 31a and the receiving grooves 31b are formed in the end members 32, The assembling recess 32a and the assembling protrusion 32b are formed in the size and shape corresponding to the assembling recesses 31a and 31b.

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According to the present invention, since the setters are moved and the passages for performing the firing process are formed in two rows, the production effect can be obtained twice at a given time.

In addition, even if the width of the inside of the calcining furnace is enlarged to a large extent due to the arrangement of the two rows of the passages, there is no fear of deflection or deformation due to the upper partition and the supporting columns.

In addition, since the ceiling is made flat and the internal volume is reduced, the consumption of the atmospheric gas and the heating energy can be reduced, and the installation area can be reduced.

In addition, since the connection state of the upper partition wall is robust, thermal expansion and heat shrinkage in the longitudinal direction can be absorbed, and durability and reliability can be greatly improved.

1 is a whole apparatus view of the present invention.
2 is a side cross-sectional view showing the atmosphere gas supply state of the present invention.
3 is a side cross-sectional view showing the exhaust structure of the present invention.
Figure 4 is a front view of Figure 2;
Fig. 5 is a plan view of Fig. 2; Fig.
6 is a perspective view showing a configuration in which an exhaust pipe is connected to an upper partition wall;
7 is an exploded perspective view showing a state in which the upper partition and the supporting column are disassembled and a gas pipe for supplying an atmospheric gas is connected.
8 is a perspective view showing a structure in which ejection holes are drilled in a side partition wall.
Fig. 9 is a perspective view showing a structure in which injection holes are bored in a side partition wall. Fig.
10 is an enlarged cross-sectional view of the main portion in a state in which the upper partition wall is supported on the side partition walls;
11 is an enlarged plan view showing a connection structure of a central member and an end member of the upper partition wall.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in the drawings, the present invention relates to a pusher type furnace for firing a capacitor, a ceramic electronic component such as a varistor, a ferrite, a piezoelectric body, and the like. More particularly, the present invention relates to a pusher type furnace in which a first passage 100 and a second passage 200 are arranged horizontally in two rows in parallel to each other so as to stably support the ceiling sheathing 3 of the flat ceiling structure by the upper partition wall 30 and the atmosphere gas is supported by the support columns 20 and the side partition walls 40 So that it is supplied smoothly.

The setter 1 is provided with an inlet replacement chamber 14 and an outlet replacement chamber 15 at the inlet side and the outlet side of the burner furnace and connected to the outlet from the inlet of the passage so as to be hermetically sealed to the outside, 2) so that the finished product can be produced by firing.

The contents contained in the setter 1 are heated to a predetermined temperature by the upper heater 12 and the lower heater 13 at the upper and lower portions of the inner passage.

In order to prevent the fired product contained in the set 1 from being transferred to the internal passages in the former stage and the latter stage in the stage where the internal temperature or atmosphere conditions heated by the upper heater 12 and the lower heater 13 are different, (16), and the lower partitions are partitioned into lower sections (16a).

A gas pipe (17) is connected to each of the zones and an atmospheric gas is introduced through the gas pipe (17). After exhaust gas acts as an atmospheric gas, an exhaust pipe (19) .

The inner passage of the firing furnace is divided into a preheating zone, a heating zone, a slow cooling zone and a cooling zone from the inlet according to temperature and atmosphere. An inlet substitution chamber (14) and an outlet substitution chamber (15) It is possible to prevent the atmosphere from entering the inside and lowering the concentration of the atmosphere gas filled in the inside and suppressing the change in the atmosphere of the baking furnace due to the opening of the contents contained in the setter 1.

A base plate 2 on which the rails 11 are arranged at the lower part of the passageways formed in the upper and lower portions of the furnace, the left and right side walls thereof are surrounded by the heat resistant bricks, As shown in FIG.

In the present invention, the first passageway (100) and the second passageway (200) are divided into two rows by supporting pillars (20) installed at the center of the inner passageway and the setters So that the base plate 2 can be transported in two rows.

At this time, since the first passage 100 and the second passage 200 are enlarged in two rows, the width of the inside of the furnace becomes wide, so that the upper partitions 30 are fixed at the lower part of the ceiling part 3, A plurality of iterations are installed repeatedly while keeping the interval.

Heat-resistant members are laminated around the passages including the upper portion of the ceiling sheath 3.

The upper partition wall 30 of the present invention is divided into three parts by a central member 31 and end members 32 and 33 and is formed into a refractory brick material. And the deformation can be absorbed even if the shrinkage occurs.

On the contact surfaces of the central member 31 and the end members 32 and 33 are formed inclined surfaces 34 and 35 that are inclined in the left and right symmetrical directions toward the center upper portion and are formed on the contact surfaces of the center member 31 and the end members 32 and 33, And the load of the heat insulating members are stably supported.

The center member 31 of these upper partition walls 30 is supported by support pillars 20 located at the lower center and both ends of the end members 32 and 33 are supported by the side partition walls 40 and 41 Thereby maintaining the installed state.

At this time, the upper and lower ends of the end members 32 and 33 are preferably formed by bending the jaws 36 and 37 so as to prevent flow in the installed state.

A fitting protrusion 31a and a receiving groove 31b are formed on both sides of the center member 31 of the upper partition 30. The end fittings 32 and 33 are formed with the fitting protrusions 31a, The assembling recess 32a and the assembling protrusion 32b are formed in the size and shape corresponding to the mounting portion 31b and are firmly held in the engaged state so as not to be shifted in the vertical direction and the back and forth direction in the assembled state.

Therefore, the centering member 31 and the end members 32 and 33 are positioned such that the assembling protrusion 32b is inserted into the lower portion of the fitting protrusion 31a in a state where the inclined surfaces 34 and 35 are inclinedly contacted with each other, So that it is possible to stably support the load acting in the vertical direction.

In addition, it is possible to secure a gap capable of absorbing heat deformation.

On the other hand, the upper partition walls 30 are alternately arranged in such a manner that products for use in which the gas pipe 17 is connected to supply the atmospheric gas, and products for discharging the atmospheric gas, to which the exhaust pipe 19 is connected, It is repeatedly installed with a constant interval maintained.

That is, holes 21 are formed at the center of the support pillars 20, which are installed to support the center of the upper partition wall 30, to which the gas pipe 17 is connected, and the injection holes 22 are drilled on both sides thereof The atmospheric gas supplied through the gas pipe 17 connected to the central member 31 can be supplied toward the first passage 100 and the second passage 200 respectively (Figure 7)

At this time, upper and lower portions of the support column 20 are formed with fitting projections 23 to be fitted to the upper partition 30 and the rails 11 and the upper partition 30 and the rail 11 are fitted with fitting projections 23, It is preferable that the assembling recesses are respectively engaged with the positions corresponding to the recessed portions 23 of the side wall.

On the other hand, the side partition wall 40, which is disposed at the position of the support column 20 where the injection hole 22 is opened toward the first passage 100 and the second passage 200, The holes 42 are drilled.

Therefore, the atmospheric gas supplied through the gas pipe 17 is supplied to the both first passages 100 and the second passages 200 from the center through the support pillars 20, The atmospheric gas is also supplied to the first passageway 100 and the second passageway 200 at the partition wall 40 as well.

Further, by further supplying the atmospheric gas through the lower gas pipe 18 piped from the lower portion of the baking furnace, a stable and uniform gas atmosphere can be formed in the first passage 100 and the second passage 200, respectively .

A plurality of exhaust holes 38 are formed in the central member 31 on the upper partition wall 30 for exhausting the atmospheric gas to which the exhaust pipe 19 is connected, The upper part of the exhaust holes 38 is closed to connect the exhaust pipe 19 to the cover 39 in a state where the exhaust gas is exhausted smoothly.

Injection holes 22 are formed in support pillars 20 that support the upper partition wall 30 to which the exhaust pipe 19 is connected.

In addition, a product having a structure in which injection holes 42 are formed in sidewall posts 41 supported on both sides thereof is disposed (Fig. 9)

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. will be.

1 - Setter 2 - Plate
20 - Support column 30 - Upper partition
31 - central member 32 - end member
34,35 - slope 40,41 -
42 - injection hole 100 - first passage
200 - second passage

Claims (3)

A rail 11 is disposed at a lower portion of a passageway formed in the upper portion, the lower portion, and the left and right side walls from the inlet to the outlet, with the surrounding heat-
A plurality of setters 1 placed on the guide path board 2 of the rail 11 are moved and heated to a predetermined temperature by the upper heater 12 and the lower heater 13, (14) and (15) at the inlet and the outlet, respectively,
The first passage (100) and the second passage (200) are arranged in two rows on both sides of the support pillars (20) standing up at the center of the passage,
The upper portion of the ceiling portion 3 forming the upper ceiling of the first passage 100 and the second passage 200 is divided into a central member 31 and end members 32 and 33, The upper partition walls 30 connected in a state of supporting the load by the inclined surfaces 34 and 35 formed at the upper and lower surfaces of the partition wall 30 are arranged at regular intervals,
The center of the upper partitions 30 is supported by the support pillars 20 and both are supported by the side partitions 40 and 41,
The support pillar 20 has a hole 21 at its center and the atmospheric gas supplied through the gas pipe 17 connected to the central member 31 through the injection holes 22 on both sides thereof is passed through the first passage 100 and the second passage 200, respectively,
And a side wall (40) disposed at a position of the support column (20) is formed with injection holes (42) for supplying an atmospheric gas to the inside thereof.
The upper partition wall 30 has a fitting projection 31a and a receiving groove 31b formed on both sides of the center member 31 and the fitting members 31a and 31b are formed on the end members 32 and 33, And the assembly groove (32a) and the assembling protrusion (32b) are formed in the size and shape corresponding to the receiving groove (31b) and the receiving groove (31b), respectively.
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