CN115094227A - Cover type annealing furnace - Google Patents
Cover type annealing furnace Download PDFInfo
- Publication number
- CN115094227A CN115094227A CN202210633796.9A CN202210633796A CN115094227A CN 115094227 A CN115094227 A CN 115094227A CN 202210633796 A CN202210633796 A CN 202210633796A CN 115094227 A CN115094227 A CN 115094227A
- Authority
- CN
- China
- Prior art keywords
- exhaust pipe
- smoke exhaust
- hood
- annealing furnace
- type annealing
- 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.)
- Pending
Links
- 238000000137 annealing Methods 0.000 title claims abstract description 32
- 239000000945 filler Substances 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 239000003517 fume Substances 0.000 claims abstract description 9
- 239000000779 smoke Substances 0.000 claims description 89
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 24
- 238000007599 discharging Methods 0.000 abstract description 6
- 238000005097 cold rolling Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/663—Bell-type furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/663—Bell-type furnaces
- C21D9/673—Details, accessories, or equipment peculiar to bell-type furnaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The application discloses a hood-type annealing furnace. This bell-type annealing furnace is applicable to cold rolling technical field, the one end of this bell-type annealing furnace's first exhaust pipe and the inside intercommunication of heating the cover, the second pipe of discharging fume, the one end of second pipe of discharging fume and the exhaust port intercommunication of furnace district exhaust system, the ring channel sets up on the global of the other end of second pipe of discharging fume, the opening direction of ring channel is unanimous with the opening direction of the other end of second pipe of discharging fume, the filler sets up in the ring channel, the other end setting of first exhaust pipe is in the filler, the other end setting of second pipe of discharging fume is in the inside of the other end of first exhaust pipe. This application can guarantee that outside air can not enter into whole exhaust pipe's inside from the junction of first exhaust pipe and second exhaust pipe to can also adjust the interior pressure of stove through the governing valve, guarantee to add the controllable of hot jacket combustion process, avoid producing excessive nitrogen oxide.
Description
Technical Field
The application belongs to the technical field of cold rolling, and particularly relates to a hood-type annealing furnace.
Background
When the hood-type annealing furnace is used, a heating hood of the hood-type annealing furnace needs to be lifted to a furnace platform, because a smoke exhaust pipe is arranged on the heating hood, the smoke exhaust pipe is ensured to correspond to a smoke exhaust port of a furnace area smoke exhaust system while the heating hood is arranged, so that gas in the heating hood is pumped away through negative pressure generated by the furnace area smoke exhaust system, however, in order to avoid the influence of factors such as inclination or deformation of the smoke exhaust pipe when the heating hood is lifted back and forth, a gap is reserved between the smoke exhaust pipe of the heating hood and the smoke exhaust port of the furnace area smoke exhaust system, so that the pressure in the heating hood is uncontrollable, a large amount of cold air is sucked, so that the pressure in the heating hood is uncontrollable, the reaction time of oxygen and nitrogen at high temperature is uncontrollable, the production of nitrogen oxides is aggravated, according to the latest requirements of the ultralow emission standard of atmospheric pollutants in the steel industry, the content of nitrogen oxides in waste smoke needs to be strictly controlled, but the semi-closed smoke exhaust structure of the type, and the risk of excessive nitrogen oxide is increased.
Disclosure of Invention
This application aims at solving the exhaust pipe of heating hood among the prior art and leaves the clearance to a certain extent at least between the exhaust port of the system of discharging fume of furnace district, leads to producing excessive nitrogen oxide's technical problem. To this end, the present application provides a hood-type annealing furnace.
The technical scheme of the application is as follows:
the application provides a hood-type annealing furnace, the hood-type annealing furnace includes:
a heating mantle;
one end of the first smoke exhaust pipe is communicated with the interior of the heating cover;
a furnace zone fume extraction system;
one end of the second smoke exhaust pipe is communicated with a smoke exhaust port of the furnace area smoke exhaust system;
the annular groove is arranged on the circumferential surface of the other end of the second smoke exhaust pipe, and the opening direction of the annular groove is consistent with that of the other end of the second smoke exhaust pipe;
a filler disposed within the annular groove;
the other end of the first smoke exhaust pipe is arranged in the filler, and the other end of the second smoke exhaust pipe is arranged inside the other end of the first smoke exhaust pipe.
Furthermore, the diameter of the filler is 2 mm-3.5 mm, and the density is more than 2.5g/cm 3 。
Further, the other end of the first smoke exhaust pipe is arranged at the depth of the filler, which is more than 30 mm.
Further, the top of the filler is more than 50mm from the opening of the annular groove.
Further, the distance between the opening of the other end of the first smoke exhaust pipe and the bottom of the annular groove is larger than 50 mm.
Further, the internal pressure values of the first smoke exhaust pipe and the second smoke exhaust pipe are-50 pa.
Further, the internal pressure value of the heating cover is-10 pa to 10 pa.
Further, the hood-type annealing furnace also comprises a regulating valve, and the regulating valve is arranged on the second smoke exhaust pipe.
Further, the hood-type annealing furnace further comprises a temperature measuring device, and the first smoke exhaust pipe and the second smoke exhaust pipe are respectively provided with the temperature measuring device.
Furthermore, a filter screen is arranged at an opening at the other end of the second smoke exhaust pipe.
The embodiment of the application has at least the following beneficial effects:
the application provides a hood-type annealing furnace, when installing the heating hood on the stove bench, still need insert the other end of first exhaust pipe in the filler of ring channel, at this moment, the second is discharged fume the inside of pipe and is installed at first exhaust pipe, the intercommunication of first exhaust pipe and second exhaust pipe has been realized, and realized whole exhaust pipe and outside isolated under the effect of filler, can guarantee that outside air can not enter into the inside of whole exhaust pipe from the junction of first exhaust pipe and second exhaust pipe, avoid producing excessive nitrogen oxide.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view showing a structure of a hood-type annealing furnace according to an embodiment of the present application.
Reference numerals:
10-heating cover; 20-a first smoke exhaust pipe; 30-a second smoke exhaust pipe; 40-an annular groove; 50-a filler; 60-adjusting valve; 70-a temperature measuring device; 80-a filter screen.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
The application is described below with reference to specific embodiments in conjunction with the following drawings:
fig. 1 is a hood-type annealing furnace according to an embodiment of the present application, which is combined with fig. 1, and includes a heating hood 10, a first exhaust pipe 20, a furnace zone exhaust system, a second exhaust pipe 30, an annular groove 40, and a filler 50.
In the embodiment of the present application, one end of the first smoke exhaust pipe 20 is communicated with the inside of the heating hood 10, one end of the second smoke exhaust pipe 30 is communicated with the smoke exhaust port of the furnace area smoke exhaust system, the annular groove 40 is disposed on the circumferential surface of the other end of the second smoke exhaust pipe 30, the opening direction of the annular groove 40 is consistent with the opening direction of the other end of the second smoke exhaust pipe 30, the filler 50 is disposed in the annular groove 40, the other end of the first smoke exhaust pipe 20 is disposed in the filler 50, and the other end of the second smoke exhaust pipe 30 is disposed inside the other end of the first smoke exhaust pipe 20.
Specifically, with reference to fig. 1, while the heating hood 10 is mounted on the furnace platform, the other end of the first smoke exhaust pipe 20 needs to be inserted into the filler 50 of the annular groove 40, at this time, the second smoke exhaust pipe 30 is mounted inside the first smoke exhaust pipe 20, so that the first smoke exhaust pipe 20 and the second smoke exhaust pipe 30 are communicated, the whole smoke exhaust pipe is isolated from the outside under the action of the filler 50, it can be ensured that the outside air cannot enter the inside of the whole smoke exhaust pipe from the joint of the first smoke exhaust pipe 20 and the second smoke exhaust pipe 30, and generation of excessive nitrogen oxides is avoided.
Further, referring to FIG. 1, the filler 50 has a diameter of 2mm to 3.5mm and a density of more than 2.5g/cm 3 The filler 50 should have sufficient volume and mass to avoid being sucked by the negative pressure in the first exhaust pipe 20 and the second exhaust pipe 30, and if the volume is too large, the density will be too low, and the filler 50 will not be presentThe method plays a role in sealing and isolating.
Referring to fig. 1, the other end of the first exhaust pipe 20 is disposed at a depth of the filler 50 greater than 30mm to ensure that the filler 50 provides sufficient sealing, and if the insertion depth is too small, external air may be sucked into the pipe by the negative pressure in the pipe.
Referring to fig. 1, the distance between the top of the filler 50 and the opening of the annular groove 40 is greater than 50mm, which may cause the filler 50 to rise during the process of inserting the filler 50 into the other end of the first exhaust pipe 20, and if the distance between the top of the filler 50 and the opening of the annular groove 40 is too small, the filler 50 may enter the pipe, so the distance is greater than 50mm to prevent the filler 50 from entering the pipe.
In the embodiment of the present application, in order to facilitate the first smoke exhaust pipe 20 to be smoothly inserted into the filler 50, the opening of the annular groove 40 is flush with the opening of the other end of the second smoke exhaust pipe 30, and the first smoke exhaust pipe 20 and the second smoke exhaust pipe 30 do not collide with each other in a horizontal manner during the hoisting process of the heating mantle 10.
In addition, the outer diameter of the other end of the first smoke exhaust pipe 20 is between the outer diameter of the other end of the second smoke exhaust pipe 30 and the inner diameter of the annular groove 40, and the distance between the other end of the first smoke exhaust pipe 20 and the annular groove 40, which can be adjusted by the other end of the second smoke exhaust pipe 30, is greater than 30mm, so that the other end of the first smoke exhaust pipe 20 can be conveniently installed, a certain installation and adjustment space is provided for the other end of the first smoke exhaust pipe 20, the condition of pipeline deformation or inclination is compensated, the universality of the heating hood 10 is improved, the heating hood can be respectively used for a plurality of furnace platforms, and the production efficiency of the hood type annealing furnace is improved.
Further, referring to fig. 1, the distance between the opening of the other end of the first smoke exhaust pipe 20 and the bottom of the annular groove 40 is greater than 50mm, so as to prevent the other end of the first smoke exhaust pipe 20 from colliding with the bottom of the annular groove 40, and to have enough margin for compensating the deformation of the pipe.
In the embodiment of the present application, the internal pressure values of the first smoke exhaust pipe 20 and the second smoke exhaust pipe 30 are-50 pa to 50pa, so as to ensure the normal operation of the hood-type annealing furnace, and the volume and the mass of the filler 50 are mainly determined according to the air pressure.
In the embodiment of the application, the internal pressure value of the heating mantle 10 is-10 pa to 10pa, so as to ensure the normal operation of the mantle annealing furnace.
Further, referring to FIG. 1, the hood annealing furnace further includes a regulating valve 60, and the regulating valve 60 is provided on the second smoke exhaust pipe 30. In the prior art, the flap valve is arranged on the second smoke exhaust pipe 30, and is in a closed state in a cooling stage or a charging stage, but the flap valve is not enough in sealing property, so that external air enters a pipeline from a gap between the flap valve and the second smoke exhaust pipe 30 under the action of negative pressure of a furnace area smoke exhaust system, and the problem of high content of converted nitrogen oxides caused by high residual oxygen content in smoke is solved. Because the smoke exhaust pipeline of the hood-type annealing furnace has the closure property, the condition of adjusting the pressure is provided, the hearth pressure is set between-10 Pa and 10Pa through the adjusting valve 60, the hearth pressure is ensured to be kept at the balance pressure, and the smoke exhaust pipeline can be in the closure state at the cooling stage or the charging stage.
With reference to fig. 1, the hood-type annealing furnace further comprises a temperature measuring device 70, the first smoke exhaust pipe 20 and the second smoke exhaust pipe 30 are respectively provided with the temperature measuring device 70, the temperature measuring device 70 on the second smoke exhaust pipe 30 is arranged between the regulating valve 60 and the opening at one end of the second smoke exhaust pipe 30 so as to check whether the regulating valve 60 is normally opened according to the control requirement, if the regulating valve is not normally opened, the phenomena of abnormal rise of the temperature in front of the valve and reduction of the temperature behind the valve can occur, the regulating valve 60 needs to be opened, the smoothness of the hearth flue is ensured, and safety problems such as explosion are prevented.
In this embodiment, the temperature measuring device 70 may be an infrared thermometer, a thermocouple, or the like, which is not limited in this embodiment.
Further, referring to fig. 1, the opening at the other end of the second smoke exhaust pipe 30 is provided with a filter screen 80 to prevent the filler 50 from being sucked into the pipe by negative pressure and damaging the smoke exhaust system of the furnace area.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise direct contact of the first and second features through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise" designate orientations or positional relationships that are based on the orientation or positional relationship shown in the figures, but are used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered limiting of the present application.
It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative position relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A hood-type annealing furnace, characterized by comprising:
a heating mantle (10);
a first smoke exhaust pipe (20), wherein one end of the first smoke exhaust pipe (20) is communicated with the interior of the heating cover (10);
a furnace zone fume extraction system;
one end of the second smoke exhaust pipe (30) is communicated with a smoke exhaust port of the furnace area smoke exhaust system;
the annular groove (40) is arranged on the circumferential surface of the other end of the second smoke exhaust pipe (30), and the opening direction of the annular groove (40) is consistent with that of the other end of the second smoke exhaust pipe (30);
a filler (50) disposed within the annular groove (40);
the other end of the first smoke exhaust pipe (20) is arranged in the filler (50), and the other end of the second smoke exhaust pipe (30) is arranged in the other end of the first smoke exhaust pipe (20).
2. A hood-type annealing furnace according to claim 1, characterized in that said filler (50) has a diameter of 2mm to 3.5mm and a density of more than 2.5g/cm 3 。
3. The hood-type annealing furnace according to claim 1, wherein the other end of the first exhaust pipe (20) is disposed at a depth of the filler (50) more than 30 mm.
4. A hood-type annealing furnace according to claim 1, characterized in that the distance of the top of said filling (50) from the opening of said annular groove (40) is more than 50 mm.
5. The hood-type annealing furnace according to claim 1, wherein the opening of the other end of the first exhaust pipe (20) is spaced from the bottom of the annular groove (40) by a distance of more than 50 mm.
6. A hood annealing furnace according to claim 1, characterized in that the pressure values inside the first and second smoke exhaust pipes (20, 30) are-50 pa.
7. A hood-type annealing furnace according to claim 1, characterized in that the internal pressure value of the heating hood (10) is-10 pa to 10 pa.
8. A hood type annealing furnace according to claim 1, further comprising a regulating valve (60), said regulating valve (60) being provided on said second smoke exhaust pipe (30).
9. A hood-type annealing furnace according to claim 1, further comprising a temperature measuring device (70), wherein each of the first and second smoke exhaust pipes (20, 30) is provided with the temperature measuring device (70).
10. A hood-type annealing furnace according to any one of claims 1 to 9, wherein the opening of the other end of the second smoke exhaust pipe (30) is provided with a screen (80).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210633796.9A CN115094227A (en) | 2022-06-06 | 2022-06-06 | Cover type annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210633796.9A CN115094227A (en) | 2022-06-06 | 2022-06-06 | Cover type annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115094227A true CN115094227A (en) | 2022-09-23 |
Family
ID=83288697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210633796.9A Pending CN115094227A (en) | 2022-06-06 | 2022-06-06 | Cover type annealing furnace |
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| CN (1) | CN115094227A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980043852U (en) * | 1996-12-26 | 1998-09-25 | 김종진 | Nose automatic adjustment device |
| CN204717353U (en) * | 2015-04-09 | 2015-10-21 | 宁夏宜鑫环保科技有限公司 | Honeycomb activated carbon regeneration furnace flame device |
| CN212390852U (en) * | 2020-05-27 | 2021-01-22 | 焦作市英利经贸有限公司 | Cleaning and dust collecting device for carbon calcining furnace |
| CN112460987A (en) * | 2020-11-25 | 2021-03-09 | 湖南华菱涟源钢铁有限公司 | Heating cover of bell-type furnace and operation method |
| CN214065756U (en) * | 2020-12-29 | 2021-08-27 | 河南东普热能科技有限公司 | Smoke exhaust system of hybrid furnace |
| CN215404403U (en) * | 2021-02-25 | 2022-01-04 | 广西正润新材料科技有限公司 | Novel bell-type furnace |
| CN215713231U (en) * | 2021-08-31 | 2022-02-01 | 唐山建龙简舟钢铁有限公司 | Hood-type annealing furnace heating mantle flue sealing device |
-
2022
- 2022-06-06 CN CN202210633796.9A patent/CN115094227A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980043852U (en) * | 1996-12-26 | 1998-09-25 | 김종진 | Nose automatic adjustment device |
| CN204717353U (en) * | 2015-04-09 | 2015-10-21 | 宁夏宜鑫环保科技有限公司 | Honeycomb activated carbon regeneration furnace flame device |
| CN212390852U (en) * | 2020-05-27 | 2021-01-22 | 焦作市英利经贸有限公司 | Cleaning and dust collecting device for carbon calcining furnace |
| CN112460987A (en) * | 2020-11-25 | 2021-03-09 | 湖南华菱涟源钢铁有限公司 | Heating cover of bell-type furnace and operation method |
| CN214065756U (en) * | 2020-12-29 | 2021-08-27 | 河南东普热能科技有限公司 | Smoke exhaust system of hybrid furnace |
| CN215404403U (en) * | 2021-02-25 | 2022-01-04 | 广西正润新材料科技有限公司 | Novel bell-type furnace |
| CN215713231U (en) * | 2021-08-31 | 2022-02-01 | 唐山建龙简舟钢铁有限公司 | Hood-type annealing furnace heating mantle flue sealing device |
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