CN103392107A - Elevator-type thermal processing furnace - Google Patents
Elevator-type thermal processing furnace Download PDFInfo
- Publication number
- CN103392107A CN103392107A CN2012800098672A CN201280009867A CN103392107A CN 103392107 A CN103392107 A CN 103392107A CN 2012800098672 A CN2012800098672 A CN 2012800098672A CN 201280009867 A CN201280009867 A CN 201280009867A CN 103392107 A CN103392107 A CN 103392107A
- Authority
- CN
- China
- Prior art keywords
- main body
- lifting platform
- furnace main
- gas
- furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
-
- 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
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
- F27B17/0033—Chamber type furnaces the floor of the furnaces consisting of the support carrying the charge, e.g. car type furnaces
-
- 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
- F27B17/00—Furnaces of a kind not covered by any preceding group
- F27B17/0016—Chamber type furnaces
- F27B17/0083—Chamber type furnaces with means for circulating the atmosphere
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
- Powder Metallurgy (AREA)
Abstract
Provided is an elevator-type thermal processing furnace with which the accumulation of decomposed binder gas in the form of tar on the surface of the elevator table and from the furnace main body to the bottom thereof is prevented. This elevator-type thermal processing furnace (1) has: a furnace main body (10); an aperture (26) formed in the bottom of the furnace main body (10); a heater (36) arranged in the interior of the furnace main body (10); and an elevator table (12) that approaches or moves away from the aperture (26) of the furnace main body (10) in order to introduce into the interior of the furnace main body (10) and to remove therefrom an object to be heat treated. In addition, a sealing part (28) is arranged in the gap between the bottom of the furnace main body (10) and the elevator table (12). Furthermore, gas discharge ports (52c) are constructed so as to blow the same type of gas as the atmospheric gas within the furnace main body (10) toward the side surfaces of the elevator table (12).
Description
Technical field
The present invention relates to a kind of being suitable for carries out degreasing or burns till the lift heat-treatment furnace of processing ceramic mouldings.
Background technology
In the past, for example, as to being heat-treated thing, being the firing furnace that ceramic mouldings is heat-treated, proposition has following lift heat-treatment furnace, inside at columnar furnace main body forms heating clamber, disposes thermal source in this heating clamber, and utilizes pressure fan to make furnace gas circulation, heating.Above-mentioned lift heat-treatment furnace disposes liftable lifting platform in the bottom of furnace main body, and upload and be equipped with the case that ceramic mouldings is taken at this lifting platform, Yi Bian make lifting platform rotation, Yi Bian carry out the heat treatment such as degreasing.
In this lift heat-treatment furnace, in the process that ceramic mouldings is heat-treated, the adhesive decomposition gas that produces during degreasing just can cause problem.Because this adhesive decomposition gas is heavier than air, therefore, can towards furnace main body by bottom one side flow., for lifting platform is inserted in heating clamber, be provided with narrow gap between the side of lifting platform and the wall that is formed at the peristome bottom furnace main body.Due to the temperature in above-mentioned gap than stove in temperature low, therefore, exist towards the bottom of furnace main body the bonding agent decomposition gas can liquefy or solidify and be tarry and accumulate such problem.
For the problems referred to above, following lift heat-treatment furnace is proposed, in the side of lifting platform and dispose the gas introduction tube of ring-type in being formed at gap between the wall of peristome of furnace main body bottom, by from above-mentioned gap, blowing out atmosphere gas in heating clamber, by this, suppressing the adhesive decomposition gas is tarry liquefaction and is accumulated in gap between lifting platform and furnace main body etc. (with reference to patent documentation 1).
The prior art document
Patent documentation
Patent documentation 1: Japanese patent laid-open 10-141861 communique
Summary of the invention
Invent technical problem to be solved
But, in the lift heat-treatment furnace that patent documentation 1 proposes, particularly can produce a lot of organic gas in the skimming processes to ceramic mouldings, occur in the phenomenon that is tarry liquefaction on the surface of lifting platform, be difficult to obtain sufficient sealing effectiveness.That is, at the gas introduction tube that utilizes configuration in the form of a ring in heating clamber during blow gas, although can prevent that the tarry thing of accumulating is attached to it and blows out on position,, can't suppress the tarry position that thing is attached to does not have blow gas of accumulating.In addition, even if via the side of lifting platform and be formed at the gap between the wall of peristome of furnace main body bottom and towards the adhesive decomposition gas of furnace main body flows, by blow gas in heating clamber, also can't suppress fully, thereby, there is the such problem in bottom that is accumulated in furnace main body with the state that is tarry liquefaction.
Therefore, main purpose of the present invention is to provide a kind of and prevents that the adhesive decomposition gas from being tarry and being accumulated in the lift heat-treatment furnace of the bottom of the surface of lifting platform and furnace main body.
The technical scheme that the technical solution problem adopts
Lift heat-treatment furnace of the present invention has: furnace main body; Peristome, this peristome is formed at the bottom of furnace main body; Thermal source, this thermal source is configured in the inside of furnace main body; And lifting platform, this lifting platform by the peristome with furnace main body near or separate, make to be heat-treated thing and to enter or withdraw from the inside of furnace main body, it is characterized in that, comprise: the sealing of curtain shape, the seal portion configurations of this curtain shape is in the bottom and the gap between lifting platform of furnace main body; And the gas blow-off outlet, this gas blow-off outlet is configured in the below of sealing, blowing out towards the side of lifting platform with the gas of the atmosphere gas identical type of furnace main body inside.
In addition, in lift heat-treatment furnace of the present invention, comparatively it is desirable to, have: sealing plate, the sealing plate extends setting from the bottom surface side of furnace main body; And protection walls, this protection walls is arranged between the side of sealing plate and lifting platform, and in the mode of the side near lifting platform, from the bottom surface side of furnace main body, extends setting.
The invention effect
According to lift heat-treatment furnace of the present invention, because the gap between the side of the wall at peristome and lifting platform comprises sealing, and from the gas blow-off outlet of the below that is arranged at sealing, blow out atmosphere gas, therefore, can prevent that the adhesive decomposition gas is accumulated in the bottom side of furnace main body to be liquefied as tarry state.Therefore, can obtain following lift heat-treatment furnace: in the situation that Reusability lift heat-treatment furnace of the present invention, can significantly reduce will be because of the number of times of the tarry soil release of adhesive decomposition gas stick fast, and can shorten maintenance time.
In addition, in lift heat-treatment furnace of the present invention,, due to the partial configuration protection walls more in the inner part at sealing plate, therefore, can obtain a kind ofly preventing that the tarry thing of accumulating is attached to lift heat-treatment furnace on the side of sealing plate.
The more clear and definite above-mentioned purpose of the present invention of explanation, other purpose, feature and the advantage of carrying out from the reference accompanying drawing, be used for implementing following working of an invention mode.
Description of drawings
Fig. 1 is the schematic sectional view of an embodiment of lift heat-treatment furnace of the present invention.
Fig. 2 is the enlarged drawing of the A section of lift heat-treatment furnace shown in Figure 1.
Fig. 3 is the schematic sectional view of another embodiment of the sealing in lift heat-treatment furnace shown in Figure 1, Fig. 3 (a) expression sealing is arranged on the situation between the first side of the wall of peristome and mounting portion, Fig. 3 (b) expression sealing is arranged on the bottom surface of furnace main body section and the situation between block surface, and Fig. 3 (c) expression sealing is arranged on the situation between the first side of the bottom surface of furnace main body and mounting portion.
Fig. 4 is the schematic sectional view of another embodiment different from lift heat-treatment furnace shown in Figure 1.
Fig. 5 is the enlarged drawing of the B section of lift heat-treatment furnace shown in Figure 4.
(symbol description)
1,2 lift heat-treatment furnaces
10 furnace main bodies
The 10a bottom surface
12 lifting platforms
14 whirligigs
The 14a rotating shaft
The 14b motor
16 sealing plates
The 16a medial surface
18 protection walls
The 18a side
20 installing plates
20a heat resistance seal
22 furnace main body supports
24 furnace chambers
26 peristomes
The 26a wall
28 sealings
28a one end
Face of 28b
28c the other end
Another face of 28d
30 table sections
32 heating clambers
34 gas supply pipes
36 heaters
38 pressure fans
The 38a motor
The 38b blade part
40 exhaust manifolds
The 40a cap
42 peripheral passages
44 wall members
44a entrance passage
44b exports passage
46 mounting portions
46a the first side
46b loads plane
48 supports
48a the second side
The 48b block surface
The 48c bottom surface
50 support plates
50a plectane section
The 50b shank
52 gas introduction tubes
52a gas introduction part
The 52b pipe arrangement
52c gas blow-off outlet
60 containment members
The 60a inner end
The 60c lower surface
G1 the first gap
G2 the second gap
The F loop direction
The specific embodiment
An embodiment to lift heat-treatment furnace of the present invention describes.Fig. 1 is the schematic sectional view of an embodiment of lift heat-treatment furnace of the present invention, and Fig. 2 is the enlarged drawing of the A section of lift heat-treatment furnace shown in Figure 1.
Above-mentioned lift heat-treatment furnace be for example to being heat-treated thing, be in the low-temperature region of the ceramic mouldings operation of burning till, the lift heat-treatment furnace that remove adhesive ingredients that ceramic mouldings contains and organic device, namely uses in the degreasing process of ceramic mouldings.Below, an embodiment of lift heat-treatment furnace of the present invention is elaborated.
Lift heat-treatment furnace 1 shown in Figure 1 comprises: furnace main body 10; Lifting platform 12, this lifting platform 12 is used for mounting case W; Whirligig 14, this whirligig 14 is used for driving lifting platform 12 in the interior rotation of furnace main body 10; Sealing plate 16 and installing plate 20, sealing plate 16 and installing plate 20 are used for preventing that atmosphere gas etc. from spilling to the outside of lift heat-treatment furnace 1; Protection walls 18, this protection walls 18 is used for preventing that the tarry thing of accumulating is attached to sealing plate 16; And furnace main body support 22, this furnace main body support 22 is used for furnace main body 10 is supported.
Furnace main body 10 is arranged in lift heat-treatment furnace 1 ceramic mouldings etc., be heat-treated namely that thing is accommodated, heat treated, and the heat in stove is kept.Furnace main body 10 forms drum.In addition, furnace main body 10 is formed by thermal insulation barriers such as ceramic-like brick and tile or fibers.Be formed with the peristome 26 of drum in the bottom of furnace main body 10.Dispose lifting platform 12 in peristome 26, this lifting platform 12 is by with above-mentioned peristome 26, approaching or separate, and can make ceramic mouldings enter or withdraw from the inside of furnace main body 10.In addition, be formed with the sealing 28 of curtain shape along the wall 26a of peristome 26.
Sealing 28 is arranged to prevent that the adhesive decomposition gas from flowing into towards bottom from furnace main body 10.Sealing 28 forms cylindric.In addition, the part of the face 28b of an end 28a of sealing 28 along the lower end side of the wall 26a of peristome 26 such as fixing by screw etc.In addition, in this case, an end 28a of sealing 28 is configured in upside, and a face 28b represents lateral surface.In the situation that lifting platform 12 inserts peristome 26, the other end 28c of sealing 28 contacts with the block surface 48b of lifting platform 12 described later, and towards sealing plate 16 1 sides as outer circumferential side, is radial bending.Consequently, the part of another face 28d of the other end 28c of sealing 28 contacts with the block surface 48b face of lifting platform 12.In addition, in this case, the other end 28c of sealing 28 is configured in downside, and another face 28d represents medial surface.Like this, sealing 28 is configured to the curtain shape in the first gap g1 that is formed by lifting platform 12 and peristome 26.In addition, even if drive lifting platform 12 rotations, another face 28d that also can keep the other end 28c of sealing 28 contacts with the face of the block surface 48b of lifting platform section 12.Sealing 28 is formed by elastomer, such as by silicone, polyurethane or elastomeric material etc., being formed.
In addition, the upper surface of furnace main body 10 bottoms is coated with furnace platform 30.Furnace platform 30 is arranged to suppress directly accumulate in furnace main body 10 because the adhesive decomposition gas is tarry liquefaction.Furnace platform 30 is such as by heat resistance metals such as stainless steels, being formed.
Be provided with furnace chamber 24 in the inside of furnace main body 10.Be provided with heating clamber 32, gas supply pipe 34, the heater 36 as thermal source, pressure fan 38, exhaust manifolds 40 and peripheral passage 42 in furnace chamber 24, wherein, above-mentioned heating clamber 32 be used for to load in case W be heat-treated thing, be that ceramic mouldings carries out heat treated, above-mentioned gas supply pipe 34 is used for atmosphere gas is supplied in furnace chamber 24, above-mentioned pressure fan 38 is used for making atmosphere gas in the interior circulation of furnace chamber 24, above-mentioned exhaust manifolds 40 are used for waste gas is discharged, and above-mentioned peripheral passage 42 is used for making atmosphere gas etc. in the interior circulation of furnace chamber 24.
Heating clamber 32 is arranged in and wherein contains case W, this case W make a plurality of ceramic mouldings such be heat-treated thing stacked under the state at interval each other along the vertical direction.Heating clamber 32 is formed by columnar wall member 44 in furnace chamber 24.Between wall member 44 be configured in the central authorities of furnace chamber 24.Be formed with respectively a plurality of passages on a side's of a wall member 44 sidepiece and the sidepiece opposite with it, so that from gas supply pipe 34, supply with the atmosphere gas along continuous straight runs that comes in the interior circulation of heating clamber 32.Be formed with entrance passage 44a at a sidepiece, at opposite sidepiece, be formed with outlet passage 44b.In addition, the upper surface side at a wall member 44 is provided with gas supply pipe 34.
Gas supply pipe 34 is arranged to atmosphere gas is supplied in furnace chamber 24.The atmosphere gas of supplying with is by pressure fan 38 42 interior circulations in peripheral passage.Gas supply pipe 34 is configured in the upper surface side of a wall member 44 near the mode the central portion that is projected into furnace chamber 24.In addition, dispose heater 36 as thermal source on the position of separating across interval with the supply port of gas supply pipe 34 on blow-off direction.
Heater 36 is arranged to heat from gas supply pipe 34, supplying with the atmosphere gas that comes.Heater 36 be configured in furnace chamber 24 between the upper surface side of wall member 44, and be configured in central authorities.In addition, heater 36 is arranged on peripheral passage 42 midway.Heater 36 for example consists of U font or bar-shaped thermal source.
Pressure fan 38 is arranged to make the peripheral passage 42 interior circulation of hot blast in furnace chamber 24.Pressure fan 38 consists of the motor 38a as prime mover and blade part 38b.Motor 38a is configured in the outside of furnace main body 10, and blade part 38b is configured in furnace chamber 24 sides.Pressure fan 38 be positioned at a wall member 44 entrance passage 44a directly over, and be arranged on the upper side of furnace main body 10.Pressure fan 38 is in order to the motor 38a driven vane 38b of section rotation, working by the mode that the atmosphere gas that gas supply pipe 34 supplies come is introduced.The atmosphere gas that is introduced into is because being heated through heater 36.Then, pressure fan 38 with the atmosphere gas after heating deliver to peripheral passage 42, the mode that guides to subsequently the entrance ventilation 44a of heating clamber 32 works.The atmosphere gas process outlet passage 44b that passes through in heating clamber 32, and via peripheral passage 42, towards top, guide.That is, atmosphere gas follows the direction circulation of ring direction F by pressure fan 38.Atmosphere gas by pressure fan 38 circulations is discharged from the exhaust manifolds 40 that are formed at furnace main body 10.
Exhaust manifolds 40 are arranged to the atmosphere gas (waste gas) in furnace chamber 24 is discharged.Exhaust manifolds 40 are positioned at the top of outlet passage 44b, and are arranged on the upper surface side of furnace main body 10.Exhaust manifolds 40 are connected with not shown emission-control equipment.Furnace chamber 24 inboards at exhaust manifolds 40 are provided with the cap 40a that can open, close.Discharge or again return in furnace chamber 24 and make the adjusting such as its circulation from exhaust manifolds 40 by the waste gas of opening, close to carry out of controlling above-mentioned cap 40a.
Peripheral passage 42 is arranged in furnace chamber 24 and makes the atmosphere gas circulation.In the present embodiment, peripheral passage 42 form make atmosphere gas from outlet passage 44b towards top flow, subsequently via heating clamber 32 between the top of wall member 44 flow, then flow to the entrance passage 44a of heating clamber 32 towards pressure fan 38.
Lifting platform 12 is arranged to for the case W mounting that is used for being housed in furnace main body 10 inside.Lifting platform 12 forms to overlook and is convex.Lifting platform 12 consists of mounting portion 46 and support 48, and wherein, above-mentioned mounting portion 46 forms cylindric, and above-mentioned support 48 forms diameter than large cylindric of the diameter of mounting portion 46.Mounting portion 46 is configured in the top of support 48.The central shaft of support 48 is coaxial with the central shaft of mounting portion 46.In addition, separately central shaft extends towards vertical direction with respect to the upper surface of table section 30.In addition, the side of the mounting portion 46 in lifting platform 12 is formed with the first side 46a, is formed with the second side 48a in the side of support 48.When the first side 46a is arranged in lifting platform 12 insertion peristome 26, near the wall 26a of peristome 26, in addition, the second side 48a is arranged near the gas blow-off outlet 52c that is disposed at the gas introduction tube 52 of protection walls 18 described later.In addition, the first side 46a is relative with the wall 26a of peristome 26 while being arranged in lifting platform 12 insertion peristome 26, and in addition, it is relative with protection walls 18 described later that the second side 48a is arranged to.In addition, be formed with the first gap g1 between the wall 26a of the first side 46a and peristome 26.In addition, be formed with the second gap g2 between the second side 48a and protection walls 18.The first gap g1 is arranged to and lifting platform 12 can be inserted heating clamber swimmingly.In addition, because the first gap g1 separates with peripheral passage 42, therefore, the impact that is subject to the heat of being brought by the hot blast in furnace chamber 24 interior circulations is very little, and is lower than the temperature in furnace chamber 24.The part by heating clamber 32 1 sides in the mounting portion 46 of lifting platform 12 is formed with mounting plane 46b.Dispose for the support plate 50 that case W is loaded on the 46b of plane in mounting, wherein, above-mentioned case W is used for that ceramic mouldings etc. is heat-treated thing and accommodates.Support plate 50 consists of the 50a of plectane section and shank 50b.The 50a of plectane section is level and forms, and is arranged for case W is loaded.In addition, shank 50b is arranged to make case W than the high distance that is equivalent to the height of above-mentioned shank 50b of mounting plane 46b of lifting platform 12.In addition, be formed with abreast block surface 48b with mounting plane 46b on the face outside the part that disposes mounting portion 46.When lifting platform 12 rose, block surface 48b had the function of blocking heat by the bottom surface 10a side near furnace main body 10.The part by whirligig 14 1 sides at support 48 is formed with bottom surface 48c.48cDe center, bottom surface is connected with the rotating shaft 14a of whirligig 14.
Whirligig 14 is arranged to drive lifting platform 12 in the interior rotation of furnace main body 10.Whirligig 14 forms by rotating shaft 14a and as the motor 14b of the prime mover that is used for making rotating shaft 14a rotation.The central authorities of bottom surface 48c in the end of rotating shaft 14a and the support 48 of lifting platform 12 are connected.In addition, the other end of rotating shaft 14a is connected with motor 14b.Therefore, the rotation that applies of the motor 14b by whirligig 14 drives lifting platform 12 rotations.Like this,, by driving lifting platform 12 rotations, just to loading in the ceramic mouldings of case W, heat equably, and ceramic mouldings contacts equably with the atmosphere gas that comes by gas supply pipe 34 supplies.In addition, in order to make case W, enter, withdraw from heating clamber 32, be provided be used to the lowering or hoisting gear (not shown) that lifting platform 12 and whirligig 14 are moved up and down.
Sealing plate 16 is arranged to prevent that atmosphere gas etc. from spilling towards outside from lift heat-treatment furnace 1.Sealing plate 16 downward extends to from the bottom surface 10a of furnace main body 10 scope that can accommodate at least lifting platform section 12 and rotating shaft 14a.Sealing plate 16 forms cylindric with the pivot of lifting platform 12 coaxially.In addition, be formed with protection walls 18 in the position more in the inner part of sealing plate 16.In addition, when lifting platform 12 rose, the mode that contacts with the bottom with sealing plate 16 was provided with installing plate 20.
Protection walls 18 is arranged to prevent the adhesive decomposition gas tarry accumulating on the medial surface 16a that thing is attached to sealing plate 16.Protection walls 18 is downward extended to be set to from the bottom surface 10a of furnace main body 10 and can be prevented that the tarry thing of accumulating is attached to scope on sealing plate 16.Protection walls 18 forms cylindric with the pivot of lifting platform 12 coaxially.In addition, protection walls 18 is formed on than sealing plate 16 position more in the inner part.Therefore, be formed with space between sealing plate 16 and protection walls 18.Dispose gas introduction tube 52 in space between the side 18a of the medial surface 16a of above-mentioned sealing plate 16 and protection walls 18.In addition, the gas blow-off outlet 52c of gas introduction tube 52 described later for example is arranged at the side 18a of protection walls 18 along horizontal one with being listed as.Therefore, gas blow-off outlet 52c is radial setting in the mode of the side 18a around protection walls 18.In addition, in the situation that lifting platform 12 inserts peristome 26, the side 18a of protection walls 18 is relative with the second side 48a of lifting platform 12, and forms the second gap g2.
Gas introduction tube 52 is arranged for to stop to be wanted from the adhesive decomposition gas of the first gap g1 leakage between the wall 26a of the first side 46a of being formed on mounting portion 46 and peristome 26 flows towards furnace main body 10.Gas introduction tube 52 consists of gas introduction part 52a and pipe arrangement 52b.Be formed with gas blow-off outlet 52c on gas introduction part 52a, this gas blow-off outlet 52c is used for and will supplies to the second gap g2 with the atmosphere gas of supplying with the atmosphere gas identical type of coming by gas supply pipe 34.The end of pipe arrangement 52b is connected with gas introduction part 52a, and the other end of pipe arrangement 52b is connected with gas supply source (not shown).Gas introduction part 52a is formed between protection walls 18 and sealing plate 16 in the mode (in the form of a ring) of the second side 48a around lifting platform 12.Gas blow-off outlet 52c forms towards the direction of the lifting direction quadrature with lifting platform 12 and the direction (namely, the direction at lifting platform 12De Zhou center) that vertically intersects with respect to the second side 48a of lifting platform 12.In addition, gas introduction tube 52 is formed on than sealing 28 position more on the lower.
In the second such narrow space of gap g2, blow out gas with the atmosphere gas identical type by the gas blow-off outlet 52c from being arranged at protection walls 18, just can make the increased pressure at the second 48a place, side.Therefore, want just to be difficult to through the second gap g2 from the adhesive decomposition gas that the first gap g1 between the wall 26a of the first side 46a of being formed on mounting portion 46 and peristome 26 leaks.Therefore, just stop the flows of above-mentioned adhesive decomposition gas towards furnace main body 10, and be pushed back in furnace chamber 24.In addition, due to gas blow-off outlet 52c centered by the axle of lifting platform 12, in the mode around the second side 48a, be radially and form, therefore, can in the situation that can not be subject to the impact of the rotary actuation of lifting platform 12, stop the adhesive decomposition gas easily through the second gap g2.Then, utilize the adhesive decomposition gas that gas blow-off outlet 52c is pushed back just by exhaust manifolds 40, to discharge.In addition, as mentioned above, the atmosphere gas that imports by gas introduction tube 52 is the gas of identical type with by gas supply pipe 34, supplying with the atmosphere gas that comes, and therefore, needn't worry to confuse the atmosphere gas in furnace chamber 24.
Installing plate 20 forms discoideus with the pivot of lifting platform 12 coaxially.Through at installing plate 20 has rotating shaft 14a.At the upper surface of installing plate 20, with rotating shaft 14a coaxially, and the mode relative with the bottom of sealing plate 16 is provided with heat resistance seal 20a.In addition, when lifting platform 12 rises, the bottom of sealing plate 16 and heat resistance seal 20a face contact.Heat resistance seal 20a is such as by Heat resistant rubber material etc., being formed.By this, can prevent that atmosphere gas etc. from spilling towards outside from lift heat-treatment furnace 1.
Furnace main body support 22 is arranged to furnace main body 10 is supported.Furnace main body support 22 is formed on the lower end side of the periphery wall of furnace main body 10.Furnace main body support 22 forms cylindric with the pivot of lifting platform 12 coaxially.Internal configurations at furnace main body support 22 has lifting platform 12 and whirligig 14.
Then, the action of the lift heat-treatment furnace 1 that consists of said structure described.At first, utilize lowering or hoisting gear that lifting platform 12 is descended, and a plurality of case W are positioned on lifting platform 12 stackedly.Then, utilize lowering or hoisting gear to make lifting platform 12 increase towards peristome 26, case W is housed in heating clamber 32.At this moment, the other end 28c of sealing 28 contacts with the block surface 48b of lifting platform 12, and then, in case lifting platform 12 rises, the opposing party end 28c of sealing 28 just is crooked radially towards sealing plate 16 in the mode of sliding on block surface 48b.Like this, the part of another face 28d of the other end 28c of sealing 28 contacts with the block surface 48b face of lifting platform 12.In addition, when lifting platform 12 was disposed at peristome 26, the mounting plane 46b of lifting platform 12 and table section 30 formed same level.
Then, utilize the motor 14b of whirligig 14 to make lifting platform 12 towards a direction rotation, and, by driving heater 36 and blade part 38b, follow the circulating current of ring direction F in the interior generation of furnace chamber 24.Then, will supply with the atmosphere gas that comes by gas supply pipe 34 supplies in furnace chamber 24.The atmosphere gas of supplying with is introduced by pressure fan 38, therefore, and through heater 36.By this, atmosphere gas is heated.Atmosphere gas after above-mentioned heating is sent to peripheral passage 42, and via entrance passage 44a, is blown in heating clamber 32.At this moment, due to lifting platform 12 rotations, therefore, the ceramic mouldings that is positioned on case W is uniformly heated, and also with atmosphere gas, contacts equably simultaneously.Like this, just, the ceramic mouldings that is housed on the case W in heating clamber 32 is carried out ungrease treatment.
In above-mentioned degreasing process, the adhesive decomposition gas that is produced by the ceramic mouldings as being heat-treated thing is discharged from exhaust manifolds 40, on the other hand, due to than atmosphere gas weight, therefore, its part just can flow into the first gap g1 between the wall 26a of peristome 26 of the first side 46a of being formed on lifting platform 12 and furnace main body 10.At this moment, be provided with sealing 28 on peristome 26,, because the part of another face 28d of the other end 28c of sealing 28 contacts with the block surface 48b face of lifting platform 12, therefore, can stop the adhesive decomposition gas easily to flow to the lower side of furnace main body 10 via the first gap g1.Then, will with the gas blow-off outlet 52c of the atmosphere gas of being supplied with the atmosphere gas identical type of coming by gas supply pipe 34 from the gas introduction tube 52 of being located at protection walls 18, inject the second such narrow space of gap g2 in the mode of the second side 48a in the support 48 around lifting platform 12, therefore, can prevent the liquefaction of adhesive decomposition gas, and can prevent that it from flowing into the lower side of furnace main body 10.In addition, also can prevent tarry accumulating on the side 18a that thing is attached to protection walls 18.In addition, although lifting platform 12 is rotated device 14 and drives and rotate, but can be in the situation that be subjected to the impact of the rotary actuation of lifting platform 12, the part of another face 28d of keeping the other end 28c of sealing 28 contacts with the face of the block surface 48b of lifting platform 12, in addition,, owing to injecting atmosphere gas from gas introduction tube 52 in the mode of the second side 48a of the support 48 around lifting platform 12, therefore, can prevent that the adhesive decomposition gas from flowing into the lower side of furnace main body 10.
Then, after degreasing process finishes, lifting platform 12 is descended, and case W is taken out from lifting platform 12, and transport to next formal firing furnace, formally burn till.
In lift heat-treatment furnace 1 of the present invention, in the first gap g1 that forms, sealing 28 is set between the first side 46a of the wall 26a of the peristome 26 that is formed at furnace main body 10 and lifting platform 12, and from the such narrow space blow gas of the second gap g2 between the side 18a of the second side 48a of 52 pairs of lifting platforms 12 of gas introduction tube and protection walls 18.by forming in this lift heat-treatment furnace 1, structure after sealing 28 and gas introduction tube 52 are made up, even if drive lifting platform 12 rotations, the adhesive decomposition gas that contains tar ingredients also is difficult to easily flow into bottom from furnace main body 10 via the first gap g1, in addition, by utilizing gas introduction tube 52, atmosphere gas is injected towards side in the mode around the second side 48a, thereby can prevent the adhesive decomposition gas that flows into via the first gap g1 liquefaction, can make it be difficult to further flow into via the second such narrow space of gap g2 the lower side of furnace main body 10.In addition, can prevent tarry accumulating on the side 18a that thing is attached to protection walls 18.Therefore, can prevent from producing the tarry thing of accumulating in the lower side of furnace main body 10.
In addition, according to lift heat-treatment furnace 1 of the present invention, because the inboard at sealing plate 16 is provided with protection walls 18 cylindraceous, therefore, can prevent from being attached to the medial surface 16a of sealing plate 16 because of the tarry thing of accumulating that the adhesive decomposition gas that passes through the first gap g1 that is formed by lifting platform 12 and peristome 26 produces.
In addition, in the lift heat-treatment furnace 1 of present embodiment, sealing 28 both can be arranged between the first side 46a of the wall 26a of peristome 26 and mounting portion 46 as shown in Fig. 3 (a), also can be arranged on as shown in Fig. 3 (b) between the bottom surface 10a and block surface 48b of furnace main body 10, can also be arranged on as shown in Fig. 3 (c) between the first side 46a of the bottom surface 10a of furnace main body 10 and mounting portion 46.
Then, another embodiment of lift heat-treatment furnace described.Fig. 4 is the schematic sectional view of the lift heat-treatment furnace of another embodiment different from lift heat-treatment furnace shown in Figure 1, and Fig. 5 is the enlarged drawing of the B section of lift heat-treatment furnace shown in Figure 4.In addition, in the present embodiment, the part mark identical symbol identical to the lift heat-treatment furnace 1 with Figure 1 and Figure 2, and description thereof is omitted.
In the lift heat-treatment furnace 2 of present embodiment, be to be provided with containment member 60 on protection walls 18, to replace gas introduction tube 52 with lift heat-treatment furnace 1 difference.Above-mentioned containment member 60 for example is circular formation.Containment member 60 is arranged to outstanding setting the from protection walls 18 towards radial direction.The internal diameter of containment member 60 is larger than the diameter of the mounting portion of lifting platform 12 46, and less than the diameter of the support of lifting platform 12 48.Internal side diameter at containment member 60 has inner end 60a, in the inboard of inner end 60a, is formed with open pore.Because the diameter of open pore forms littlely than the diameter of support 48, therefore, in the situation that the support 48 of lifting platform 12 is inserted into above-mentioned open pore, the lower surface 60c of the inner end 60a of containment member 60 contacts with the second side 48a face of support 48, and inner end 60a is crooked towards top simultaneously.In addition, containment member 60 is formed by elastomer, such as by silicone, polyurethane or elastomeric material etc., being formed.
In the lift heat-treatment furnace 2 of present embodiment, except having the effect identical with lift heat-treatment furnace 1, also has following effect.That is, by containment member 60 is set, replace gas introduction tube 52, just do not need to configure in addition gas introduction tube 52, therefore, do not need to prepare to arrange the needed equipment of gas introduction tube 52.
In addition, in the lift heat-treatment furnace 1,2 of present embodiment, be provided with protection walls 18 in the inboard of the sealing plate 16 of the bottom surface of furnace main body 10 10a side, but be not limited to this, also protection walls 18 can be set specially.In this case, comparatively it is desirable to, be provided with the gas blow-off outlet 52c of gas introduction tube 52 at the medial surface 16a of sealing plate 16, and make sealing plate 16 close as far as possible with the second side 48a of lifting platform 12.
In addition, in the lift heat-treatment furnace 1,2 of present embodiment, the part of the sealing 28 of curtain shape both can be fixed on furnace main body 10 sides, also can be fixed in lifting platform 12.Therefore, the sealing 28 of curtain shape is fixed to an end 28a of sealing 28 and the end of at least one party in the 28c of the other end is free end.
In the lift heat-treatment furnace 1,2 of present embodiment, the gas blow-off outlet 52c of gas introduction tube 52 uniformly-spaced is arranged at the side 18a of protection walls 18 along a horizontal row ground, but the present invention is not limited to this, also can list to be obliquely in a zigzag horizontal two to arrange.Therefore, the configuration of the gas blow-off outlet 52c of gas introduction tube 52 is so long as can the structure to the second side 48a injection atmosphere gas get final product in the second such narrow space of gap g2.
In addition, in the lift heat-treatment furnace 1,2 of present embodiment, as the heater 36 of thermal source be configured in furnace chamber 24 between the upper surface side of wall member 44, and be configured in central authorities, but the present invention is not limited to this,, so long as be arranged on peripheral passage 42 midway, also can be arranged on the lower side of furnace chamber 24.
In addition, in the lift heat-treatment furnace 1,2 of present embodiment, consist of columnar heat-treatment furnace, but the present invention being not limited to this, can be also square tube shape (box-shaped).In addition, lifting platform 12 is not limited to rotary-type turntable, can be also the platform that can only carry out lifting.Therefore, the shape of lifting platform 12 can be also rectangle, and is not limited to disc-shape.In addition, lifting platform 12 can also be columnar.
Industrial utilizability
Lift heat-treatment furnace of the present invention for example can carry out degreasing or burn till the stove of processing ceramic mouldings with work.
Claims (2)
1. lift heat-treatment furnace has:
Furnace main body;
Peristome, this peristome is formed at the bottom of described furnace main body;
Thermal source, this thermal source is configured in the inside of described furnace main body; And
Lifting platform, this lifting platform by the described peristome with described furnace main body near or separate, make to be heat-treated thing and to enter or withdraw from the inside of described furnace main body,
It is characterized in that, described lift heat-treatment furnace comprises:
The sealing of curtain shape, the seal portion configurations of this curtain shape is in the bottom and the gap between described lifting platform of described furnace main body; And
The gas blow-off outlet, this gas blow-off outlet is configured in the below of described sealing, blowing out towards the side of described lifting platform with the gas of the atmosphere gas identical type of described furnace main body inside.
2. lift heat-treatment furnace as claimed in claim 1 is characterized in that having:
Sealing plate, the sealing plate extends setting from the bottom surface side of described furnace main body; And
Protection walls, this protection walls is arranged between the side of described sealing plate and described lifting platform, and in the mode of the side near described lifting platform, from the bottom surface side of described furnace main body, extends setting.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011040171 | 2011-02-25 | ||
| JP2011-040171 | 2011-02-25 | ||
| PCT/JP2012/050044 WO2012114779A1 (en) | 2011-02-25 | 2012-01-05 | Elevator-type thermal processing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103392107A true CN103392107A (en) | 2013-11-13 |
| CN103392107B CN103392107B (en) | 2015-05-27 |
Family
ID=46720569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280009867.2A Active CN103392107B (en) | 2011-02-25 | 2012-01-05 | Elevator-type thermal processing furnace |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5553127B2 (en) |
| CN (1) | CN103392107B (en) |
| WO (1) | WO2012114779A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120286A (en) * | 2018-01-02 | 2018-06-05 | 深圳市晟腾企业管理有限公司 | It is a kind of can automatic loading/unloading vertical type ceramic brick drying burning kiln |
| TWI806313B (en) * | 2021-03-24 | 2023-06-21 | 日商日本碍子股份有限公司 | Batch heat treatment furnace and heat treatment furnace system |
| TWI806314B (en) * | 2021-03-24 | 2023-06-21 | 日商日本碍子股份有限公司 | Batch Heat Treatment Furnace |
| TWI811921B (en) * | 2021-03-24 | 2023-08-11 | 日商日本碍子股份有限公司 | Batch heat treatment device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106222384A (en) * | 2016-10-20 | 2016-12-14 | 神雾环保技术股份有限公司 | Heat-treatment furnace light sealing curtain |
| JP7073016B2 (en) * | 2020-01-10 | 2022-05-23 | 中外炉工業株式会社 | Clean heat treatment equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61282791A (en) * | 1985-06-05 | 1986-12-12 | 株式会社村田製作所 | Seal structure of batch type atmosphere baking furnace |
| JPH07234079A (en) * | 1994-02-24 | 1995-09-05 | Murata Mfg Co Ltd | Heat treating furnace |
| JP2003050090A (en) * | 2001-08-06 | 2003-02-21 | Murata Mfg Co Ltd | Heat treating furnace |
| CN200989724Y (en) * | 2006-11-17 | 2007-12-12 | 秦文隆 | Up-down vacuum gas furnace |
| CN201402052Y (en) * | 2009-03-06 | 2010-02-10 | 苏州新长光热能科技有限公司 | Vertically lifting discharging machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0510678A (en) * | 1991-07-02 | 1993-01-19 | Murata Mfg Co Ltd | Batch type combustion furnace |
| JPH10227572A (en) * | 1997-02-12 | 1998-08-25 | Murata Mfg Co Ltd | Heat treatment furnace |
-
2012
- 2012-01-05 WO PCT/JP2012/050044 patent/WO2012114779A1/en active Application Filing
- 2012-01-05 JP JP2013500915A patent/JP5553127B2/en active Active
- 2012-01-05 CN CN201280009867.2A patent/CN103392107B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61282791A (en) * | 1985-06-05 | 1986-12-12 | 株式会社村田製作所 | Seal structure of batch type atmosphere baking furnace |
| JPH07234079A (en) * | 1994-02-24 | 1995-09-05 | Murata Mfg Co Ltd | Heat treating furnace |
| JP2003050090A (en) * | 2001-08-06 | 2003-02-21 | Murata Mfg Co Ltd | Heat treating furnace |
| CN200989724Y (en) * | 2006-11-17 | 2007-12-12 | 秦文隆 | Up-down vacuum gas furnace |
| CN201402052Y (en) * | 2009-03-06 | 2010-02-10 | 苏州新长光热能科技有限公司 | Vertically lifting discharging machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120286A (en) * | 2018-01-02 | 2018-06-05 | 深圳市晟腾企业管理有限公司 | It is a kind of can automatic loading/unloading vertical type ceramic brick drying burning kiln |
| TWI806313B (en) * | 2021-03-24 | 2023-06-21 | 日商日本碍子股份有限公司 | Batch heat treatment furnace and heat treatment furnace system |
| TWI806314B (en) * | 2021-03-24 | 2023-06-21 | 日商日本碍子股份有限公司 | Batch Heat Treatment Furnace |
| TWI811921B (en) * | 2021-03-24 | 2023-08-11 | 日商日本碍子股份有限公司 | Batch heat treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2012114779A1 (en) | 2014-07-07 |
| WO2012114779A1 (en) | 2012-08-30 |
| CN103392107B (en) | 2015-05-27 |
| JP5553127B2 (en) | 2014-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103392107A (en) | Elevator-type thermal processing furnace | |
| KR101522083B1 (en) | Apparatus for repairing refractory brick of stand pipe | |
| EP2799406B1 (en) | Seal structure for cooler device and cooler device provided therewith | |
| CN205893373U (en) | Change end formula controlled atmosphere heating cementation furnace | |
| CN107376802A (en) | The technique of clean operation in a kind of holding chamber for microwave cracking damaged tire | |
| US2052187A (en) | Method and apparatus for heat treating ingots | |
| US6178192B1 (en) | Raw material heating apparatus | |
| CN104541118B (en) | Heating furnace | |
| KR101658759B1 (en) | Duct type heat storage device | |
| KR200335225Y1 (en) | dry distillation furnace for dry distillation gas generator of scrapped material, scrapped tire, scrapped resin | |
| KR101453655B1 (en) | Cokes oven | |
| JP2013010808A (en) | Apparatus and method for carbonization | |
| JP6536545B2 (en) | Repair method of coke oven | |
| KR101562450B1 (en) | Exhaust apparatus for high temperature gas of coke oven | |
| US1272918A (en) | Material-conveyer for furnaces. | |
| US1749866A (en) | Continuous kiln | |
| CN220730144U (en) | Ore sintering experimental device | |
| KR101245318B1 (en) | Device for blowing air in coke | |
| KR20130139002A (en) | Pyrolysis oil recovery apparatus with sludge cooling device using waste material | |
| KR101586398B1 (en) | Apparatus for raw material | |
| KR101481612B1 (en) | Apparatus for repairing of chamber | |
| CN102778125A (en) | Dual-door dual-trolley high-temperature sintering furnace production line | |
| CN202709714U (en) | Large-size PTFE (Polytetrafluoroethylene) pipe blank sintering furnace | |
| RU151374U1 (en) | VERTICAL FURNACE FOR FIRING CERAMIC PRODUCTS | |
| KR101530437B1 (en) | Supply system of ammonia liquor for treatment of coke oven gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |