CN104990411A - Heating furnace structure - Google Patents
Heating furnace structure Download PDFInfo
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- CN104990411A CN104990411A CN201510391054.XA CN201510391054A CN104990411A CN 104990411 A CN104990411 A CN 104990411A CN 201510391054 A CN201510391054 A CN 201510391054A CN 104990411 A CN104990411 A CN 104990411A
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Abstract
The invention relates to a heating furnace structure. The heating furnace structure comprises a furnace body with an opening formed in the lower portion and a furnace pipe assembly penetrating through the furnace body from bottom to top. The furnace body is arranged on a heating installation platform of a box chamber. The furnace pipe assembly comprises a furnace pipe and a lifting furnace platform arranged in the furnace pipe. A furnace pipe flange is arranged on the periphery of the lower portion of the furnace pipe. The upper end of the furnace pipe flange is tightly matched with the bottom of the furnace body. The lower end of the furnace pipe flange is connected with a furnace door flange located on the box chamber. The bottom of the furnace platform is tightly matched with the furnace door flange. A furnace pipe sealing ring is arranged between the furnace pipe flange and the furnace door flange. A furnace mouth sealing ring is arranged between the furnace door flange and the furnace platform. By means of the heating furnace structure, materials can be heated in a closed environment, and an adverse effect of toxic or radioactive diffusion on the environment is avoided. Quick cooling can be achieved after heating, and work efficiency is improved; parts can be quickly overhauled and replaced, and time is saved.
Description
Technical field
The invention belongs to firing equipment field, be specifically related to a kind of heating furnace structure.
Background technology
At chemical field, often need to heat material.Current existing firing equipment mostly is non-tight structure, only adopts means of ventilation.When material has toxicity or radioactivity, for avoiding toxicity or radioactivity diffusion, need material to heat under airtight environment, and examine and replace is carried out to firing equipment, and existing firing equipment cannot meet this requirement.In addition, for batch mode of heating, due to needs furnace temperature is reduced to reasonable temperature after material could be taken out, and temperature fall time is very long, greatly constrains the raising of productivity ratio.
Summary of the invention
For the defect existed in prior art, the invention provides a kind of heating furnace structure, material can be heated under airtight environment, and after heating, cooling rate is fast, improves production efficiency; The Quick overhaul that can realize parts is changed, and saves time.
For reaching above object, the technical solution used in the present invention is: provide a kind of heating furnace structure, the body of heater comprising lower openings and the flue assembly be located in from below to up in body of heater, heating element heater is provided with between described body of heater and flue assembly, described body of heater is arranged on case room, described flue assembly comprises flue and is arranged on the table that can be elevated in flue, described flue lower periphery is provided with flue flange, the bottom of flue flange upper end and body of heater closely cooperates, described flue flange lower end and the fire door Flange joint be arranged on case room; Bottom and the fire door flange of described table closely cooperate; Be provided with flue sealing ring between described flue flange and fire door flange, between fire door flange and table, be provided with fire door sealing ring.
Further, described body of heater comprises furnace shell, and the upper end of described furnace shell is provided with bell, and the lower end of described furnace shell is provided with furnace shell flange, is provided with seal ring for furnace lid between furnace shell and bell.
Further, be provided with rigid insulation layers and flexible insulating layer successively from inside to outside in described furnace shell, described heating element heater is arranged on the sidewall of rigid insulation layers.
Further, described flue is bell shape thin walled cavity, and its size and described table profile match.
Further, described table top is provided with receptacle stand, and middle part is provided with insulating materials, and bottom is provided with base plate.
Further, the bottom of described furnace shell is provided with burner hearth air inlet pipe; Described bell is provided with burner hearth blast pipe.
Further, described furnace shell is provided with retaining mechanism, and described retaining mechanism is connected with the part that is locked that case room is arranged.
Further, described heating element heater on the inwall of rigid insulating material helically line arrange or arrange vertically with heating rod form.
Advantageous Effects of the present invention is:
(1) adopt heating furnace of the present invention, can heat under the environment of sealing, avoid toxicant or radioactive substance diffusion, adverse influence is produced to environment;
(2) heating furnace of the present invention, is provided with burner hearth air inlet pipe and burner hearth blast pipe, by burner hearth fast cooling simultaneously, accelerates the cooling rate of flue, thus enhances productivity;
(3) heating furnace of the present invention, the Quick overhaul that can realize parts is changed, and saves time.
Accompanying drawing explanation
Fig. 1 is the structural representation of heating furnace of the present invention;
Fig. 2 is the schematic diagram that body of heater of the present invention and furnace sealing circle are changed;
Fig. 3 is the schematic diagram that flue of the present invention and flue sealing ring are changed;
Fig. 4 is the schematic diagram that fire door sealing ring of the present invention is changed.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As Figure 1-4, for heating furnace structure provided by the invention, comprise bell 1, seal ring for furnace lid 2, furnace shell 3, retaining mechanism 4, furnace sealing pad 5, burner hearth air inlet pipe 6, the part 7 that is locked, flue sealing ring 8, fire door sealing ring 9, table 10, fire door flange 11, fire door flange 12, flexible heat insulation layer 13, rigidity heat insulation layer 14, heating element heater 15, material container 16, flue 17, burner hearth blast pipe 18, flue adapter 19, case room 20, flue flange 21, furnace shell flange 22, heating furnace mounting platform 23, heat-insulating material 24, base plate 25, bag envelope 26.
Wherein: bell 1 is slab structure, its shape and furnace shell 3 match, and top is reserved with the interface be connected with flue top pipeline, and be also reserved with the interface with temperature element and burner hearth blast pipe, above interface all can adopt seal nipple form.
Seal ring for furnace lid 2 adopts ring-shaped rubber pad, and it is between bell 1 and furnace shell 2, for ensureing the sealing between bell and furnace shell.
Furnace shell 3 is bottom opening, surrounding contains, half pack arrangement of open top, for containing heating element heater 15, flexible heat insulation layer 13 and rigidity heat insulation layer 14.Its top is the Flange-shaped Parts flange mated with bell 1, and flange is provided with the o-ring groove mated with seal ring for furnace lid 2, for installing sealing ring.Furnace shell 3 bottom opening and flue size match, and can hold flue cylindrical shell and pass.Be provided with furnace shell flange 22 bottom furnace shell 3, furnace shell flange 22 and flue flange 21 match, and be provided with furnace sealing pad 5 between furnace shell flange and flue flange, furnace shell flange 22 is connected with burner hearth air inlet pipe, for realizing the airflow circulating of burner hearth.
Retaining mechanism 4 is positioned on furnace shell 3, for furnace shell 3 is reliably fixed on top, case room 20, for the sealing between furnace shell 3 and flue 17 provides sealing force.Retaining mechanism is key shape hole, is welded on furnace shell, by retaining mechanism fixture pull bar, furnace shell is reliably fixed on top, case room.
Furnace sealing pad 5 is ring-shaped graphite pad preferably, and between furnace shell 3 and flue 17, for the sealing between furnace shell 3 and flue 17, its material is high temperature sealing material.
Burner hearth air inlet pipe 6 is stainless steel tube preferably, is welded on furnace shell 3, communicates with furnace shell 3 internal atmosphere, carries out pressure cooling by air-flow to burner hearth inside.
The part 7 that is locked is positioned on heating furnace platform 23, and its profile and retaining mechanism 4 match, with retaining mechanism 4 with the use of realizing the fixing of furnace shell 3.
Flue sealing ring 8 is ring-shaped graphite pad preferably, between flue flange 21 and fire door flange 12, for realizing the sealing of flue 17 internal atmosphere, and oven cavity atmosphere and ambiance is isolated.
Fire door sealing ring 9 is Graphite pad preferably, between table 10 and fire door flange 11, for realizing the sealing of flue internal atmosphere, flue internal atmosphere and ambiance is isolated.
Table 10 is platforms of a lifting, top is provided with receptacle stand, to be heated radioactive material material container 16 is filled for placing, be provided with heat-insulating material 24 in the middle part of table, prevent furnace heat to the indoor diffusion of case, bottom table, be provided with base plate 25, base plate is placed fire door sealing ring 9, base plate configuration mates with fire door flange, and base plate, fire door sealing ring, fire door flange can realize the sealing of fire door, atmosphere in flue and case internal ambience is completely cut off.
Fire door flange 11 is steel annular flange, and it is connected with fire door flange 12, and the base plate of profile and table 10 matches, and with case room housing compact siro spinning technology, fire door flange 11, table 10, fire door sealing ring 9 with the use of, the sealing of fire door can be realized.The size of fire door flange and the receptacle stand size of table match, and table can through the lifting of fire door flange.
Fire door flange 12 is flanged (FLGD) tubular body, and fire door flange is positioned on heating furnace mounting platform, and fire door pipeline section is connected with fire door flange 11, and fire door spoolpiece size mates with table size, and table can through fire door pipeline section and the lifting of fire door flange.
Flexible heat-insulating material 13, between furnace shell 3 and rigid thermal insulation 14, is felted or fibrous heat-insulating material, is used for the insulation of body of heater on the one hand, prevents heat loss, utilizes the thermal expansion deformation of its flexible compensation furnace shell and rigid thermal insulation on the other hand.Flexible heat-insulating material 13 can select alumina silicate fiber felt.
Rigid thermal insulation 14 is bell-jar structure, and it is placed on furnace shell base plate, flue 17 can be covered, and rigid thermal insulation 14 inwall has groove, for placing heating element heater 15; Gap is left, with burner hearth air inlet pipe 6, burner hearth blast pipe 18 with the use of the airflow circulating that can realize burner hearth between itself and flue; Perforate is left at rigid thermal insulation top, and its size and flue top straight tube, burner hearth blast pipe, temperature element match.
Electric energy etc. can be converted into heat energy by heating element heater 15, and its form can be the form such as resistance wire, carborundum.Its arrangement can rigid thermal insulation inwall helically line arrange or arrange vertically with heating rod form.Heating element heater shape and rigid thermal insulation inner wall trench mating shapes.
Material container 16, for holding radioactivity material, its material is exotic material.
Flue 17 is bell shape thin walled cavity, and cavity size and table and material container match, and top is provided with adapter, and override formats is mated with adapter with size; Bottom is provided with flue flange 21, and flue flange shaped upper part mates with furnace shell flange and furnace sealing pad, and flue flange lower shape mates with fire door flange and flue sealing ring.Flue flange is connected by connected modes such as bolts with fire door flange, and by flue sealing ring press seal.
Burner hearth blast pipe 18 is steel pipe, is connected with bell, and burner hearth blast pipe lower end size is mated with rigid thermal insulation top hole.
Flue adapter 19 is removable structure, and bottom is connected with flue interface, and this connection can ensure sealing.Perforate is left at flue adapter sidepiece and top, can be used for negative pressure measurement, flue exhaust and temperature element and installs.
The version of heating furnace of the present invention meets case room subregion arrangement requirement: the case room 20 of containing toxicity or radiating medium is arranged in below heating furnace, heating furnace body is positioned at the more weak space of radioactivity, flue 17 wherein, fire door flange 12, flue sealing ring 8, table 10, flue adapter 19 form ground floor airtight cavity, be referred to as flue seal chamber, can communicate with case internal ambience.Define second layer airtight cavity in flue seal chamber outside to furnace shell 3, bell 1, seal ring for furnace lid 2, furnace sealing pad 5, be referred to as burner hearth seal chamber, airflow circulating can be carried out separately.Thus, this heating furnace can under airtight environment heated material, avoid heating time produce radioactive material surrounding environment is impacted.
When heating furnace heats, the container filling material to be heated is placed in the receptacle stand of table, then table is risen, fire door sealing ring is compressed, now defines two airtight cavities: flue seal chamber, burner hearth seal chamber.Heating element heater is started working, and burner hearth seal chamber, flue seal chamber is heated, and the radioactivity atmosphere produced during heating in flue seal chamber is discharged by the exhaust outlet of flue adapter by the adapter of flue top.Atmosphere in burner hearth is discharged by burner hearth blast pipe, also can detect oven cavity atmosphere, judge whether flue has leakage.
When heating completes, heating element heater quits work, and burner hearth and flue begin to cool down.Structure of the present invention provides a kind of fast cooling means under maintenance flue atmosphere is hedged off from the outer world situation: cooling medium is entered burner hearth inside from burner hearth air inlet pipe, cooling medium is by after burner hearth seal chamber, discharge from the burner hearth blast pipe of roof of the furnace, form circulation.In this way, both accelerated the cooling rate of burner hearth, and also ensure that the sealing of flue internal gas, substantially increase productivity ratio under the premise that security is guaranteed.
The present invention be advantageous in that, the Quick overhaul of parts can be realized.Its Quick overhaul comprises following a few partial content:
1, the replacing of body of heater.As shown in Figure 2, when heating element heater breaks down, the body of heater integral replacing that can will be made up of bell, seal ring for furnace lid, heating element heater, rigid thermal insulation, flexible heat-insulating material etc.When changing, first flue adapter being pulled down, using plug shutoff.Due to the obstacle that the upper without hindrance body of heater entirety of now flue top adapter is released, retaining mechanism is separated with retaining mechanism fixture, body of heater is pulled down from flue top, the body of heater more renewed.According to reverse order, heating furnace is ressembled again.
2, the replacing of furnace sealing circle.Its process and body of heater are changed similar, are pulled down by body of heater according to the order of aforementioned part 1, and when body of heater exits from the adapter of flue top, flue sealing ring also exposes, and can be changed from top.According to reverse order, heating furnace is ressembled again.
3, the replacing of flue.As shown in Figure 3, flue is stationary parts, damage probability is very little, just in case when occurring damaging, first body of heater and sealing ring can be pulled down according to the order of aforementioned part 2, expose flue flange, seal 26 pairs of flanges with bag to close, flue flange and fire door be fixedly connected with releasing, flue can be pulled down from top, change.According to reverse order, heating furnace is ressembled again.
4, the replacing of flue sealing ring.According to the order of aforementioned 3rd part, flue is pulled down, flue sealing ring can be exposed, pull down from top, change.According to reverse order, heating furnace is ressembled again.
5, the replacing of fire door sealing ring.As shown in Figure 4, fire door sealing ring is changed from case chamber interior, when fire door sealing ring changed by needs, is fallen by table, exposes fire door sealing ring, carry out the replacing of fire door sealing ring from case chamber interior remote overhauling mode.
Heating furnace structure of the present invention is not limited to above-mentioned detailed description of the invention, and those skilled in the art's technical scheme according to the present invention draws and other embodiment belongs to technological innovation scope of the present invention equally.
Claims (8)
1. a heating furnace structure, the body of heater comprising lower openings and the flue assembly be located in from below to up in body of heater, heating element heater (15) is provided with between described body of heater and flue assembly, it is characterized in that: described body of heater is arranged on case room (20), described flue assembly comprises flue (17) and is arranged on the table (10) that can be elevated in flue (17), described flue (17) lower periphery is provided with flue flange (21), the bottom of flue flange (21) upper end and body of heater closely cooperates, described flue flange (21) lower end is connected with the fire door flange (12) be arranged on case room (20), bottom and the fire door flange (12) of described table (10) closely cooperate, be provided with flue sealing ring (8) between described flue flange (21) and fire door flange (12), between fire door flange (12) and table, be provided with fire door sealing ring (9).
2. a kind of heating furnace structure as claimed in claim 1, it is characterized in that: described body of heater comprises furnace shell (3), the upper end of described furnace shell (3) is provided with bell (1), the lower end of described furnace shell (3) is provided with furnace shell flange (22), is provided with seal ring for furnace lid (2) between furnace shell (3) and bell (1).
3. a kind of heating furnace structure as claimed in claim 2, it is characterized in that: be provided with rigid insulation layers (14) and flexible insulating layer (13) in described furnace shell (3) from inside to outside successively, described heating element heater (15) is arranged on the sidewall of rigid insulation layers (14).
4. a kind of heating furnace structure as claimed in claim 3, is characterized in that: described flue (17) is bell shape thin walled cavity, and the profile of its size and described table matches.
5. a kind of heating furnace structure as claimed in claim 4, is characterized in that: described table (10) top is provided with receptacle stand, and middle part is provided with insulating materials (23), and bottom is provided with base plate (24).
6. a kind of heating furnace structure as described in any one of claim 1-5, is characterized in that: the bottom of described furnace shell (3) is provided with burner hearth air inlet pipe (6); Described bell (1) is provided with burner hearth blast pipe (18).
7. a kind of heating furnace structure as claimed in claim 6, is characterized in that: described furnace shell (3) is provided with retaining mechanism (4), and described retaining mechanism (4) is connected with the part that is locked (7) that case room is arranged.
8. a kind of heating furnace structure as claimed in claim 7, is characterized in that: described heating element heater (15) on the inwall of rigid insulating material helically line arrange or arrange vertically with heating rod form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391054.XA CN104990411B (en) | 2015-07-06 | 2015-07-06 | A kind of heating furnace structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391054.XA CN104990411B (en) | 2015-07-06 | 2015-07-06 | A kind of heating furnace structure |
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| Publication Number | Publication Date |
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| CN104990411A true CN104990411A (en) | 2015-10-21 |
| CN104990411B CN104990411B (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510391054.XA Active CN104990411B (en) | 2015-07-06 | 2015-07-06 | A kind of heating furnace structure |
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| CN (1) | CN104990411B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865194A (en) * | 2016-04-12 | 2016-08-17 | 中国核电工程有限公司 | Heating furnace |
| CN106701107A (en) * | 2016-12-19 | 2017-05-24 | 湖南顶立科技有限公司 | Vertical carbonization equipment |
| CN106885473A (en) * | 2015-12-15 | 2017-06-23 | 中核四○四有限公司 | Plutonium product drying roaster |
| CN108645232A (en) * | 2018-04-28 | 2018-10-12 | 中国原子能科学研究院 | Modular high activity liquid waste evaporation-calcining furnace |
| CN109341343A (en) * | 2018-09-20 | 2019-02-15 | 中国电子科技集团公司第四十八研究所 | A kind of high-temperature heating furnace body suitable for manufacturing silicon carbide semiconductor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203323554U (en) * | 2013-05-17 | 2013-12-04 | 合肥科晶材料技术有限公司 | Liftable type vacuum high-temperature furnace |
| CN203550568U (en) * | 2013-10-17 | 2014-04-16 | 济南君道新材料科技有限公司 | Degreasing furnace |
| CN203772001U (en) * | 2013-10-17 | 2014-08-13 | 济南君道新材料科技有限公司 | Degreasing furnace provided with lifting type material platform |
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2015
- 2015-07-06 CN CN201510391054.XA patent/CN104990411B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203323554U (en) * | 2013-05-17 | 2013-12-04 | 合肥科晶材料技术有限公司 | Liftable type vacuum high-temperature furnace |
| CN203550568U (en) * | 2013-10-17 | 2014-04-16 | 济南君道新材料科技有限公司 | Degreasing furnace |
| CN203772001U (en) * | 2013-10-17 | 2014-08-13 | 济南君道新材料科技有限公司 | Degreasing furnace provided with lifting type material platform |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885473A (en) * | 2015-12-15 | 2017-06-23 | 中核四○四有限公司 | Plutonium product drying roaster |
| CN105865194A (en) * | 2016-04-12 | 2016-08-17 | 中国核电工程有限公司 | Heating furnace |
| CN105865194B (en) * | 2016-04-12 | 2020-04-03 | 中国核电工程有限公司 | Heating furnace |
| CN106701107A (en) * | 2016-12-19 | 2017-05-24 | 湖南顶立科技有限公司 | Vertical carbonization equipment |
| CN108645232A (en) * | 2018-04-28 | 2018-10-12 | 中国原子能科学研究院 | Modular high activity liquid waste evaporation-calcining furnace |
| CN108645232B (en) * | 2018-04-28 | 2020-04-14 | 中国原子能科学研究院 | Modular high-level radioactive waste liquid evaporation-calcining furnace |
| CN109341343A (en) * | 2018-09-20 | 2019-02-15 | 中国电子科技集团公司第四十八研究所 | A kind of high-temperature heating furnace body suitable for manufacturing silicon carbide semiconductor |
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| Publication number | Publication date |
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| CN104990411B (en) | 2018-12-14 |
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