CN213578732U - Energy-saving heating furnace - Google Patents
Energy-saving heating furnace Download PDFInfo
- Publication number
- CN213578732U CN213578732U CN202022401895.3U CN202022401895U CN213578732U CN 213578732 U CN213578732 U CN 213578732U CN 202022401895 U CN202022401895 U CN 202022401895U CN 213578732 U CN213578732 U CN 213578732U
- Authority
- CN
- China
- Prior art keywords
- energy
- saving
- furnace
- end wall
- blackbody
- 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.)
- Active
Links
Images
Landscapes
- Radiation Pyrometers (AREA)
Abstract
The utility model relates to the technical field of industrial furnaces, in particular to an energy-saving heating furnace, which comprises a furnace body end wall and a furnace top, wherein the furnace top is provided with a first black body energy-saving element, and the furnace body end wall is provided with a refractory fiber module and a second black body energy-saving element; the ratio of the first black body energy-saving element to the second black body energy-saving element is 1-3:1, and the second black body energy-saving element arranged on the end wall of the furnace body penetrates through the refractory fiber module arranged on the end wall of the furnace body. The utility model discloses an energy-conserving heating furnace is through setting up the refractory fiber module on the furnace body headwall of heating furnace, and the first black body energy-saving component that the cooperation furnace roof set up has realized the inside comprehensive energy-conserving effect of furnace body. When the furnace temperature is more than 800 ℃, the heat transfer is mainly radiation, the radiation heat transfer is more than 15 times of convection heat transfer and accounts for more than 80 percent of the total heat; the first blackbody energy-saving element has high radiation coefficient, and plays a role of fully reflecting radiation downwards on the furnace top, so that the high-efficiency recycling of the radiation heat of the workpiece is achieved.
Description
Technical Field
The utility model relates to an industrial furnace technical field, in particular to energy-saving heating furnace.
Background
The prior art situation, the defects or shortcomings of the prior art:
due to the heating working condition requirements of products produced by the industrial furnace, the temperature of the industrial furnace is required to be kept in a very high temperature range for a long time, so that the temperature difference between the furnace and the environment is very large, the high temperature difference directly causes the heat preservation difficulty of the furnace, and the heat mass transfer loss is serious. In order to solve the problem of heat loss of the furnace, a blackbody element energy-saving technology is provided, according to the blackbody theory, the blackbody element with a cavity frustum with a certain thickness and an open top end is manufactured by porous ceramic materials, and the high-efficiency energy-saving and emission-reduction effects are achieved.
The blackbody energy-saving technology is mainly characterized in that a blackbody energy-saving element is used for carrying out directional heat reflection on a workpiece in a furnace kiln, infrared rays diffusely reflected by the workpiece in the furnace kiln return to the workpiece, the advanced energy-saving effect is achieved, and the effects of reducing energy consumption indexes, improving furnace temperature level and uniformity, reducing oxidation burning loss and prolonging the service life of a furnace lining are achieved.
At the present stage, the blackbody enhanced radiation heat transfer technology provides reliable guarantee for energy conservation and emission reduction for heating furnaces in the steel, petrochemical and mechanical industries, and provides technical support for full utilization of resources and scientific and sustainable development.
However, due to the large self weight of the black body element and the structural characteristics of the black body element, the black body element cannot completely cover the inner wall of the furnace kiln when the inner wall of the furnace kiln is installed, so that the space between the black body elements has a relatively weak capacity of protecting reflected heat, and further the furnace kiln adopting the black body energy-saving element has certain weak points of thermal insulation performance, which are main energy loss points of the furnace kiln after the black body energy-saving element is transformed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: aiming at the problem that the energy of reflected heat at the gap of the black body element is relatively weak in the prior art, a novel energy-saving heating furnace kiln is provided.
In order to realize the purpose, the utility model discloses a technical scheme be:
an energy-saving heating furnace comprises a furnace body end wall and a furnace top, wherein a first black body energy-saving element is arranged on the furnace top, and a refractory fiber module and a second black body energy-saving element are arranged on the furnace body end wall; the ratio of the first blackbody energy-saving element to the second blackbody energy-saving element is 1-3:1, and the second blackbody energy-saving element arranged on the furnace body end wall penetrates through the refractory fiber module arranged on the furnace body end wall.
The utility model discloses an energy-conserving heating furnace is through setting up the refractory fiber module on the furnace body headwall of heating furnace, and the first black body energy-saving component that the cooperation furnace roof set up has realized the inside comprehensive energy-conserving effect of furnace body. When the furnace temperature is more than 800 ℃, the heat transfer is mainly radiation, the radiation heat transfer is more than 15 times of convection heat transfer and accounts for more than 80 percent of the total heat; the first blackbody energy-saving element has high radiation coefficient, and plays a role of fully reflecting radiation downwards on the furnace top, so that the high-efficiency recycling of the radiation heat of the workpiece is achieved.
Meanwhile, the arrangement mode of the black body element is different from that of a conventional black body element in that a refractory fiber module is arranged on the end wall of the furnace body, and the side wall of the furnace body of the heating furnace is conveniently and quickly arranged by utilizing the same high-radiation heat-preservation and energy-saving characteristics of the refractory fiber module. Because the furnace body end wall comprises the heating furnace auxiliary structures such as the steel inlet, the steel outlet, the access door, the smoke vent, the burner, the peephole, the temperature measuring hole, the pressure measuring hole and the like, the area of the furnace body end wall for mounting the black body element is smaller, the number of the elements is small, and the energy-saving effect is not obviously improved. Even if the blackbody element is installed, the installation process is time-consuming and labor-consuming due to the complex structure of the furnace wall, and the blackbody element is easy to drop or damage due to scraping during furnace shutdown maintenance.
Therefore, the refractory fiber module is arranged on the end wall of the furnace body, the installation of the fiber module is more convenient and faster, and the working time and the cost are saved. The refractory fiber module is compared in that the black body component is installed fixedly and forms close fit with the furnace body headwall more easily at the furnace body headwall, has good matching characteristic to a great deal of pore structures and the like that exist on the side wall moreover, realizes that the radiant efficiency of furnace body headwall is quick, high-efficient to be improved. Compare the stove that sets up black body energy-saving component in prior art comprehensively, the utility model discloses an energy-conserving heating furnace has the characteristics of construction more easily to the construction speed of refractory fiber module on the side wall is very fast.
As the preferred scheme of the utility model, set up on the furnace roof first black body energy-saving component sets up according to closely staggered arrangement mode, and is adjacent interval between two centre of a circle of first black body energy-saving component is 125 supplyes one's expenses 135 mm. The elements are arranged in a tightly staggered arrangement of black body elements according to Lambert's law (energy distribution of heat rays), achieving maximum enhanced radiative heat transfer.
The material to be heated in the hearth of the heating furnace receives heat energy emitted by a heat source, the furnace top can receive heat emitted by most of workpieces in the heating process, and the radiation heat of the high-temperature furnace kiln has larger proportion, so that the energy-saving effect is better by closely and staggeredly arranging the black body energy-saving elements on the furnace top. Corresponding to the targeted heat radiation effect that can realize furnace body lateral wall black body component because the active area is littleer, the efficiency of reflection heat is lower, so the furnace body headwall sets up some lower relatively of demand of black body component, adopts the installation of fire resistant fiber module more easily, also more matches other structures on the furnace body headwall simultaneously.
As the preferred scheme of the utility model, the refractory fiber module adopts the adhesive to apply paint with a brush in the refractory fiber module with the bonding face between the furnace body headwall. Slightly pressing and bonding to be flat. The high-temperature resistant adhesive has high temperature resistance of 750-1500 ℃. The refractory fiber module is a crystalline mullite fiber patch. The radiation heat transfer of the furnace body end wall (furnace wall) to the workpiece is in direct proportion to the furnace wall blackness coefficient and the furnace wall radiation area, the blackness coefficient of the furnace wall can be effectively improved by adopting the crystal mullite fiber patch, and the installation and construction are simple and convenient. For example, a refractory binder, aluminum dihydrogen phosphate, may be used.
As the utility model discloses an optimal scheme, be equipped with nozzle, peephole, temperature measurement hole, pressure measurement hole on the furnace body headwall, be provided with the engineering opening on the refractory fiber module, the engineering opening with nozzle, peephole, temperature measurement hole and pressure measurement hole match. The refractory fiber module is simple and efficient to install, can be matched with an engineering opening, realizes efficient heat preservation matching, and can keep a good stable state in the traditional working process of the heating furnace.
As the preferred scheme of the utility model, the second black body energy-saving component pierces through the setting of refractory fiber module, the second black body energy-saving component is in be array form distribution on the furnace body end wall, be located same horizontal row adjacent interval h1 between two centre of a circle of second black body energy-saving component is 150 and supplyes 160mm, is located same vertical row adjacent interval h2 between the centre of a circle of second black body energy-saving component is 165 and supplyes 175 mm.
Further, the combined emissivity of the first blackbody energy-saving element and the second blackbody energy-saving element is greater than or equal to 95%.
As the preferable scheme of the utility model, the emissivity of the first blackbody energy-saving element and the emissivity of the second blackbody energy-saving element are more than or equal to 0.95 within the temperature range of 500-1200 ℃.
In order to better guarantee the effect of energy-conserving heating furnace practical application performance, the utility model also provides following preparation process method, through reforming transform the ordinary stove that has now and upgrading the heating furnace kiln that obtains to have high energy-conserving efficiency.
A method for constructing an energy-saving heating furnace comprises the following steps:
s1, preprocessing: building a construction platform, and cleaning the bumps and the cokes on the surface of the lining of the furnace body;
s2, repairing damaged furnace lining: respectively repairing the furnace top and the furnace body end wall;
s3, black body element installation: firstly, distributing and scribing a furnace roof, and then installing and fixing a first black body energy-saving element;
s4, installing a refractory fiber module on the end wall of the furnace body, then performing layout and scribing on the refractory fiber module, drilling, installing a second blackbody energy-saving element, and finally bonding and reinforcing the second blackbody energy-saving element and the refractory fiber module;
s5, infrared spraying: carrying out infrared spraying on the whole hearth;
s6, heating and preheating: gradually heating up to heat the mixture in a heating furnace for stable curing and forming.
Wherein the infrared coating for infrared spraying is mainly composed of a radiation powder base material and a bonding agent; by spraying the infrared coating, the coating has high emissivity and high stability at high temperature, so that the heat-insulating property of the heating lining wall is effectively improved, and the service life of the refractory material is prolonged.
The utility model discloses the heating furnace reforms transform the upgrading method and reforms transform the construction respectively through furnace roof, the furnace body headwall to the heating furnace, realizes the quick upgrading of heating furnace. Firstly, fixing the first black body energy-saving element according to the characteristics of the furnace top, and then installing and cutting and forming the crystal mullite fiber patch according to the engineering opening structure characteristics of the furnace body end wall. After the heating furnace is repaired, an integrated integral structure is reconstructed inside the hearth, and the integral heat loss of the heating furnace is obviously reduced. For a heating furnace kiln in the steel industry, the iron scale before modification is more, the oxidation burning loss is reduced after black body modification, and the product quality is obviously improved.
As a preferable embodiment of the present invention, in steps S3 and S4, the first black body energy saving element and the second black body energy saving element each include a fixing manner of fixing a fastener and fixedly combining with an adhesive. In the installation process of the existing blackbody energy-saving element in the heating furnace, only the mode of fixing the fastener is adopted, so that the shedding rate of the blackbody energy-saving element after being used for a period of time is high, and in order to further improve the stability of the heating furnace, in the rapid construction method of the heating furnace in the application, a binder fixing mode is added. The fastener comprises a first fastener, a second fastener and a third fastener, wherein the first fastener is used for fixing the first black body energy-saving element, and the second fastener and the third fastener are used for fixing the second black body energy-saving element.
In this document, the first black body energy-saving element includes a first main body, a first through hole is formed in the bottom of the first main body, and the first through hole is used for fixing the first main body with the furnace top; the bottom of the outer part of the first main body is provided with at least two through grooves, and the through grooves are used for injecting an adhesive; the blackbody energy-saving element further comprises a second main body, and the second main body is nested in the cavity of the first main body. The stability of the black body energy-saving element and the furnace top can be further enhanced by injecting the binder into the through groove arranged at the bottom of the outer side of the first main body, and the falling or loosening of part of the black body elements after the black body energy-saving element is used for a certain period of time is prevented. The arrangement of the second main body can further increase the heat transfer area of the black body inner cavity and improve the heat conductivity on the one hand; on the other hand, the second main body can play a certain protection role on the first fastening piece used for fixing the blackbody energy-saving element and the furnace top, and the defect that the blackbody energy-saving element is easy to fall off due to the fact that the fastening piece is damaged by high temperature in the furnace body of the traditional single blackbody energy-saving element is overcome.
As a preferred embodiment of the present invention, during the installation process of the first black body energy-saving element, a binder is first fixed, wherein the binder is injected into the through groove at the bottom of the first black body energy-saving element, and the first black body energy-saving element and the furnace top are pre-fixed by the binder; and then fixing a first fastener, wherein the first fastener penetrates through a through hole in the furnace top from the bottom of the cavity of the first black body energy-saving element, and the first fastener is in threaded connection with the through hole.
As a preferred embodiment of the present invention, in step S3, the first black body energy saving element is set to avoid the anchor brick.
As a preferred scheme of the utility model, during the installation process of the refractory fiber modules, the refractory fiber patches are sequentially formed on the furnace body end wall, and after the patches are completed, cutting is performed according to the structure of the furnace body end wall, so that the cut engineering opening is matched with the burner, the peephole, the temperature measuring hole and the pressure measuring hole on the furnace body end wall;
in the installation process of the second black body energy-saving element, the drilling position of the second black body energy-saving element on the refractory fiber module is fixed through a second fastener and a third fastener, and then a binder is filled in a gap between the second black body energy-saving element and the drilling hole, so that the installation of the second black body energy-saving element is realized.
The second black body energy-saving element comprises a first element, wherein a second through hole and a plurality of third through holes are formed in the bottom of the inner cavity of the first element, the third through holes are formed in the second through hole in a surrounding mode, the second through holes and the third through holes are used for fixing the first element and the end wall of the furnace body, a plurality of grooves are formed in the side wall of the inner cavity of the first element, and the grooves are longitudinally formed.
The arrangement of first component through second through-hole and a plurality of third through-hole makes second black body energy-saving component and furnace body headwall many positions obtain fixing, compares in the fixed means of traditional single fastener more firm, and the setting up of a plurality of recesses on the first component has further increased the inside heat transfer area of cavity, more is favorable to the heat conduction.
And in the process of fixing the second black body energy-saving element and the furnace body end wall, firstly, fixing the four third through holes and the furnace body end wall through the third fasteners respectively, and then, fixing the second element, the first element and the furnace body end wall through the second fasteners. The arrangement of the second element can play a certain protection role on the fastener in the third through hole on one hand, and prevent the energy-saving element of part of the black body from falling off or loosening after the energy-saving element is used for a certain period of time. The arrangement of the second main body can further increase the heat transfer area of the black body inner cavity and improve the heat conductivity on the one hand; on the other hand, the second element can protect the fastening piece for fixing the blackbody energy-saving element and the end wall of the furnace body to a certain extent, so that the fastening piece is prevented from being damaged by high temperature in the furnace body, and the falling rate of the blackbody energy-saving element is increased.
As the preferable scheme of the utility model, in the step S3, in the process of pasting the furnace body end wall, when the complete area on the furnace body end wall is more than or equal to 2m2And the second blackbody energy-saving element is arranged in the drilled hole. The end wall of the furnace body is provided with auxiliary heating furnace structures such as a steel inlet, a steel outlet, an access door, a smoke vent, a burner, a peephole, a temperature measuring hole, a pressure measuring hole and the like, and the auxiliary heating furnace structures are 1-2m near the structures2In a position not requiring provision of a secondThe energy-saving blackbody element is characterized in that the refractory fiber module is matched with a second blackbody element and arranged on the end wall of the furnace body, and the area of the end wall is more than or equal to 2m2Can also achieve better technical effects on the complete area.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses the heating furnace utilizes black body element high temperature section (being more than or equal to 750 ℃) to strengthen the thermal radiation function and the thermal insulation performance of crystal mullite fibre paster, reaches comprehensive energy-conserving purpose.
2. The utility model discloses heating furnace and traditional heating furnace structure are the same, can reform transform through traditional heating furnace and upgrade and form, do not influence the safe handling of heating furnace, and upgrade and reform transform the cost and compare in setting up the black body component comprehensively lower. After the improvement and the upgrade, the effects of saving energy by more than 10 percent, reducing oxidation burning loss, improving production efficiency, improving furnace temperature uniformity, improving product quality, prolonging service life of a furnace lining and reducing maintenance cost can be well realized.
3. The utility model has the advantages of environmental protection, and the arrangement of the black body element and the matching of the refractory fiber module on the side wall of the furnace body strengthen the physical heat transfer of the heating furnace, and do not contain chemical combustion-supporting components; does not participate in combustion; can reduce the smoke emission of the heating furnace.
4. The utility model discloses the black body component that the heating furnace set up at the furnace roof is that high temperature heat-resisting material makes, and long-term high temperature keeps emissivity unchangeable, stable performance, long-life.
Drawings
FIG. 1 is a schematic view of the installation of blackbody elements in the energy-saving heating furnace of the present invention;
fig. 2 is a schematic structural diagram of a first blackbody energy-saving element of the present invention;
FIG. 3 is a top view of the first blackbody energy saving element;
fig. 4 is a schematic structural diagram of a second blackbody energy-saving element of the present invention;
FIG. 5 is a schematic diagram of a side view of a second blackbody energy-saving element;
reference numerals: 1-furnace body end wall, 2-furnace top, 3-first blackbody energy-saving element, 31-first main body, 32-first through hole, 33-through groove, 34-second main body, 4-refractory fiber module, 5-second blackbody energy-saving element, 51-first element, 52-second through hole, 53-third through hole, 54-groove, 55-second element, 56-fourth through hole, 6-engineering opening, 8-first fastener, 9-second fastener and 10-third fastener.
Detailed Description
The present invention will be described in detail below.
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the following embodiments further describe the present invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model discloses black body component (black body energy saving component) that uses is the black body energy saving component of this company's production, has the advantage characteristics that black body emissivity is greater than or equal to 0.95, and energy-conserving effect is showing. The blackbody energy-saving element can be a blackbody energy-saving element of the company, and the blackbody energy-saving element can be prepared by referring to the disclosure of the patent application document previously applied by the company. Specifically, for example, chinese patents CN207501673U, CN207050448U, 207501698U, CN206755893U, CN207501701U, etc.
Example 1
The furnace parameters of example 1 are specified below:
furnace type: walking beam type heating furnace
Effective size of hearth (effective length × effective width): 47800mm x 11700mm
The fuel type: coke oven gas
Gas heat value: (4000. + -. 200) x4.18KJ/Nm 3.
The charging temperature of the plate blank: the cold charging temperature is less than or equal to 400 ℃, and the hot charging temperature is more than or equal to 400 DEG C
Rated yield of the heating furnace: 320t/h (standard slab, cold charge, carbon steel)
The process temperature during production of the heating furnace is as follows: the highest temperature is less than or equal to 1320 ℃, and the lowest temperature is less than or equal to 900 DEG C
The material of the heating furnace lining: pouring materials, and pasting the fiber felt, which can be removed during construction.
Scheme design: by implementing the black body energy-saving technology, the radiant heat transfer capacity of the hearth is improved and the temperature of the hearth tends to be balanced and reasonable under the condition of not influencing the original combustion, flue gas flow and hearth temperature distribution characteristics of the heating furnace.
An energy-saving heating furnace F1, as shown in figure 1, comprises a furnace body end wall 1 and a furnace top 2, wherein a first black body energy-saving element 3 is arranged on the furnace top 2, and a refractory fiber module 4 and a second black body energy-saving element 5 are arranged on the furnace body end wall 1; the ratio of the first blackbody energy-saving element 3 to the second blackbody energy-saving element 5 is 3:1, and the second blackbody energy-saving element 5 penetrates through the refractory fiber module 4. Specifically, the first blackbody energy-saving elements 3 arranged on the furnace roof 2 are arranged in a close staggered manner, and the distance between two circle centers of adjacent first blackbody energy-saving elements 3 is 135 mm. Specifically, the refractory fiber module 4 is coated on the bonding surface between the refractory fiber module 4 and the furnace body end wall 1 by using a high-temperature adhesive, and then is slightly pressed to bond and flatten. The high-temperature resistant adhesive has high temperature resistance of 750-1500 ℃. The refractory fiber module adopts a crystal mullite fiber patch. The furnace body end wall 1 (furnace wall) is in direct proportion to the radiation heat transfer of the workpiece and the blackness coefficient of the furnace wall and the radiation area of the furnace wall, the blackness coefficient of the furnace wall can be effectively improved by adopting the crystal mullite fiber patch, and the installation and construction are simple and convenient.
Furthermore, a burner, a peephole, a temperature measuring hole and a pressure measuring hole are arranged on the furnace body end wall 1, an engineering opening 6 is arranged on the refractory fiber module 4, and the engineering opening 6 is matched with the burner, the peephole, the temperature measuring hole and the pressure measuring hole. More specifically, the second black body energy-saving elements 5 penetrate through the refractory fiber module 4, the second black body energy-saving elements 5 are distributed on the furnace end wall 1 in an array form, a distance h1 between two circle centers of adjacent second black body energy-saving elements 5 located in the same horizontal row is 160mm, and a distance h2 between circle centers of adjacent second black body energy-saving elements located in the same vertical row is 175 mm;
in this embodiment 1, the first blackbody energy saving element 3 includes: as shown in fig. 2-3, the stove top comprises a first main body 31, a first through hole 32 is formed at the bottom of the first main body 31, and the first through hole 32 is used for fixing the first main body 31 and the stove top 2; at least two through grooves 33 are formed in the bottom of the outer portion of the first main body 31, and the through grooves 33 are used for injecting an adhesive; the first blackbody energy saving element 3 further comprises a second main body 34, and the second main body 34 is nested in the cavity of the first main body 31. The stability of the first black body energy saving element 3 and the furnace top 2 can be further enhanced by injecting the adhesive into the through groove 33 provided at the bottom of the outer side of the first body 31, preventing the falling off or loosening of a part of the first black body energy saving element 3 after a certain period of use. The second main body 34 can further increase the heat transfer area of the black body inner cavity on one hand, and improve the heat conductivity; on the other hand, the second main body 34 can protect the first fastening piece 8 used for fixing the first blackbody energy-saving element 3 and the furnace top 2 to a certain extent, so that the first fastening piece 8 is prevented from being damaged by high temperature in the furnace body, and the falling rate of the first blackbody energy-saving element 3 is increased.
The second blackbody energy-saving element 5 is shown in fig. 4-5 and comprises a first element 51, a second through hole 52 and four third through holes 53 surrounding the second through hole 52 are arranged at the bottom of the inner cavity of the first element 51, the second through hole 52 and the third through hole 53 are used for fixing the first element 51 with the furnace body end wall 1, the side wall of the inner cavity of the first element 51 is provided with a plurality of grooves 54, the grooves 54 are longitudinally arranged, the first element 51 further comprises a second element 55, the second element 55 is nested in the first element 51, a fourth through hole 56 is arranged on the second element 55, the fourth through hole 56 corresponds to the second through hole in position, firstly, the four third through holes 53 are respectively fixed with the furnace body end wall 1 through third fasteners 10, then the second element 55 and the first element 51 are fixed with the furnace body end wall 1 through the second fastener 9.
A quick construction method of an energy-saving heating furnace F1 specifically comprises the following steps:
s1, preprocessing: building a construction platform, and cleaning the bumps and the cokes on the surface of the lining of the furnace body;
s2, repairing damaged furnace lining: respectively repairing the furnace top 2 and the furnace body end wall 1;
s3, black body element installation: firstly, layout and scribing are carried out on the furnace top 2, and then the first blackbody energy-saving element 3 is installed and fixed;
s4, installing the refractory fiber module 4 on the furnace body end wall 1, then performing layout scribing on the refractory fiber module 4, drilling, installing the second blackbody energy-saving element 5, and finally performing bonding reinforcement on the second blackbody energy-saving element 5 and the refractory fiber module 4;
s5, infrared spraying: carrying out infrared spraying on the whole hearth;
s6, heating and preheating: gradually heating up to heat the mixture in a heating furnace for stable curing and forming.
In the step S3, the first black body energy-saving element 3 and the second black body energy-saving element 5 both include a fixing manner of fixing a fastener and fixedly combining with an adhesive; the fasteners comprise a first fastener 8, a second fastener 9 and a third fastener 10, wherein the first fastener 8 is used for fixing the first black body energy-saving element 3, and the second fastener 9 and the third fastener 10 are used for fixing the second black body energy-saving element 5. Specifically, during the installation process of the first black body energy-saving element 3, firstly, an adhesive is fixed, wherein the adhesive is injected into the through groove 33 at the bottom of the first black body energy-saving element 3, and the first black body energy-saving element 3 and the furnace top 2 are pre-fixed through the adhesive; and then fixing by a first fastener 8, wherein the first fastener 8 penetrates into the furnace top 2 from a first through hole 32 at the bottom of the cavity of the first black body energy-saving element 3, and the first fastener 8 is in threaded connection with the furnace top 2.
In the installation process of the refractory fiber modules 4, the refractory fiber modules 4 are sequentially formed by pasting refractory fibers, and after pasting, cutting is carried out according to the structure of the furnace body end wall 1, so that the cut engineering opening 6 is matched with the burner, the peephole, the temperature measuring hole and the pressure measuring hole on the furnace body end wall;
in the installation process of the second blackbody energy-saving element 5, the drill hole position of the second blackbody energy-saving element 5 on the refractory fiber module 4 is fixed through a second fastener 8 and a third fastener 9, and then a binder is filled in a gap between the second blackbody energy-saving element 5 and the drill hole, so that the installation of the second blackbody energy-saving element 5 is realized.
Analyzing the improved effect: compared with a heating furnace before modification, the heat loss is reduced by 10 +%, the operation is stable for 12 months, the energy-saving effect is obvious, and the first blackbody element and the second blackbody element are basically not dropped.
The descriptions of each patent, patent application, and publication cited in this application are incorporated herein by reference in their entirety. Citation of any reference shall not be construed as an admission that such reference is available as "prior art" to the present application.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. An energy-saving heating furnace comprises a furnace body end wall and a furnace top, and is characterized in that a first black body energy-saving element is arranged on the furnace top, and a refractory fiber module and a second black body energy-saving element are arranged on the furnace body end wall; the ratio of the first blackbody energy-saving element to the second blackbody energy-saving element is 1-3:1, and the second blackbody energy-saving element arranged on the furnace body end wall penetrates through the refractory fiber module arranged on the furnace body end wall.
2. The energy-saving heating furnace as claimed in claim 1, wherein the first blackbody energy-saving elements arranged on the furnace roof are arranged in a close staggered manner, and the distance between two circle centers of the adjacent first blackbody energy-saving elements is 125-135 mm.
3. The energy-saving heating furnace according to claim 1, wherein the refractory fiber module is coated on the bonding surface between the refractory fiber module and the end wall of the furnace body by using an adhesive.
4. The energy-saving heating furnace according to claim 1, wherein the end wall of the furnace body is provided with a burner, a peephole, a temperature measuring hole and a pressure measuring hole, the refractory fiber module is provided with an engineering opening, and the engineering opening is matched with the burner, the peephole, the temperature measuring hole and the pressure measuring hole.
5. The energy-saving heating furnace of claim 1, wherein the second blackbody energy-saving elements penetrate the refractory fiber module, the second blackbody energy-saving elements are distributed on the furnace end wall in an array form, the distance h1 between the centers of two circles of adjacent second blackbody energy-saving elements in the same horizontal row is 150-175 mm, and the distance h2 between the centers of two circles of adjacent second blackbody energy-saving elements in the same vertical row is 165-175 mm.
6. The energy-saving heating furnace according to claim 1, wherein the first blackbody energy-saving element comprises a first main body, a first through hole is formed in the bottom of the first main body, and the first through hole is used for fixing the first main body with the furnace top; the bottom of the outer part of the first main body is provided with at least two through grooves, and the through grooves are used for injecting an adhesive; the blackbody energy-saving element further comprises a second main body, and the second main body is nested in the cavity of the first main body.
7. The energy-saving heating furnace according to claim 1, wherein the second black body energy-saving element comprises a first element, a second through hole and a plurality of third through holes arranged around the second through hole are formed in the bottom of an inner cavity of the first element, the second through hole and the plurality of third through holes are used for fixing the first element and a furnace body end wall, a plurality of grooves are formed in the side wall of the inner cavity of the first element, and the plurality of grooves are longitudinally arranged.
8. The energy-saving heating furnace of claim 7, wherein the second blackbody energy-saving element further comprises a second element, a fourth through hole is formed in the second element, the fourth through hole and the second through hole are coaxially arranged in parallel, and a fastening piece sequentially penetrates through the fourth through hole and the second through hole to be fixed to the end wall of the furnace body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022401895.3U CN213578732U (en) | 2020-10-26 | 2020-10-26 | Energy-saving heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022401895.3U CN213578732U (en) | 2020-10-26 | 2020-10-26 | Energy-saving heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213578732U true CN213578732U (en) | 2021-06-29 |
Family
ID=76528855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022401895.3U Active CN213578732U (en) | 2020-10-26 | 2020-10-26 | Energy-saving heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213578732U (en) |
-
2020
- 2020-10-26 CN CN202022401895.3U patent/CN213578732U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104498059B (en) | Coke furnace carbonization chamber repairing protection device, its manufacture method and carbonization chamber method for repairing and mending | |
| CN201443971U (en) | Air ventilation oxidizing furnace lining composite structure | |
| CN101973768A (en) | Thermal-radiating material and fire-resisting material using same | |
| CN201050938Y (en) | Heating furnace kiln installed with industrial standard blackbody | |
| CN213578732U (en) | Energy-saving heating furnace | |
| CN204787763U (en) | Energy -saving natural gas heating furnace | |
| CN112229223A (en) | Energy-saving heating furnace with black body and fiber arranged on furnace lining and construction method thereof | |
| US20210381768A1 (en) | Modular enclosure structure of high temperature heating furnace and installation method | |
| CN101293775A (en) | Industrial standard blackbody | |
| CN105778977B (en) | A kind of ethane cracking furnace | |
| CN100339673C (en) | Blackbody furnace-producing material and heating furnace | |
| CN202482415U (en) | Utilization system for combustion and smoke exhausting residual heat of zinc pot for carrying out hot-dip galvanizing on steel pipe | |
| CN203642680U (en) | Tunnel kiln waste heat using system | |
| CN2195745Y (en) | Strong radiative transfer energy-saving industral furnace | |
| CN202792972U (en) | Electricity-based oven device for sintering ignition furnace | |
| CN112268462B (en) | Preparation method of multi-element combined energy-saving device | |
| CN207487412U (en) | Black matrix strengthens radiant heat transfer energy-saving heating furnace | |
| CN201235452Y (en) | Soldering maintaining furnace for soldering heavy sectional steel component | |
| CN108088256A (en) | A kind of method for carrying out heating furnace reformation using heating element is targeted | |
| CN2627440Y (en) | Furnace-building material with black body and heating-furnace kiln thereof | |
| CN202915354U (en) | Recrystallization silicon carbide boiler burner | |
| CN204026799U (en) | The radiator of infra-red radiation gas-cooker | |
| CN201867064U (en) | Combined type full fiber structure ignition and heat insulation furnace | |
| WO2020070064A1 (en) | Energy efficient heating process | |
| CN204880115U (en) | A high -efficient heat transfer radiant tube for radiant tube heating furnace or heat treatment furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |