CN110818239A - Glass heating furnace - Google Patents
Glass heating furnace Download PDFInfo
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- CN110818239A CN110818239A CN201911290101.6A CN201911290101A CN110818239A CN 110818239 A CN110818239 A CN 110818239A CN 201911290101 A CN201911290101 A CN 201911290101A CN 110818239 A CN110818239 A CN 110818239A
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- gas
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
Abstract
The invention discloses a glass heating furnace, which comprises a first furnace body and a second furnace body which are symmetrically arranged, wherein a glass conveying roller way is arranged between the first furnace body and the second furnace body; the glass heating furnace comprises a first furnace body, a closed gas collecting tank, a gas heating device, a circulating fan, a hot gas inlet assembly, a waste gas exhaust assembly, a heat exchange device and a heat exchange device, wherein the first furnace body is internally provided with the closed gas collecting tank, the gas inlet end of the closed gas collecting tank is communicated with the circulating fan arranged outside the first furnace body in a gas manner through a first gas inlet pipe, the gas outlet end of the closed gas collecting tank is connected with the hot gas inlet assembly, one side of a glass conveying roller way, which is close to the first furnace body, is also provided with the waste gas exhaust assembly used for exhausting waste gas generated in the glass heating process, the waste gas exhaust assembly is connected with the heat exchange device through a first gas exhaust pipe, high-temperature waste gas entering the heat exchange device exchanges heat with cold air entering the first gas inlet pipe, and.
Description
Technical Field
The invention relates to the technical field of glass heating devices, in particular to a glass heating furnace.
Background
Existing glass heating furnaces typically operate in a radiant mode, i.e., the glass is heated by the heat emitted by a resistive heating element. The heating mode by the radiation heat of the electric heating wire has defects, and as the blackness of some kinds of glass is small, the reflectivity and the transmissivity of the glass are relatively high, and the absorption to radiation heating is poor, the heating by adopting the conventional radiation mode has the problems of long heating time and low heating efficiency. For another example, when LOW-E glass, i.e., LOW emissivity glass, is manufactured, a large amount of heat is reflected, and the surface temperature of the glass does not meet the requirement.
In addition, during radiation heating, heat is directly conducted from the roller way to the lower surface of the glass, and the conducted heat is larger than the radiation heat received by the upper surface of the glass, so that a certain temperature difference exists between the upper surface and the lower surface of the glass, the edge of the glass is warped, meanwhile, a white fog phenomenon is generated at the contact part of the roller way, and the processing quality of the glass is finally influenced.
At present, the glass heating furnace can produce the waste gas waste heat when the work finishes to need processing apparatus to handle, current waste gas waste heat often only can handle and can't carry out the work of recycling, thereby reduced the usability of waste gas waste heat.
Disclosure of Invention
Therefore, the invention provides a glass heating furnace to solve the defects in the prior art.
A glass heating furnace comprises a first furnace body and a second furnace body which are symmetrically arranged, wherein the first furnace body and the second furnace body have the same internal structure, and a glass conveying roller way is arranged between the first furnace body and the second furnace body;
the gas heating furnace is characterized in that a closed gas collecting box is arranged inside the first furnace body, a gas heating device is arranged in the closed gas collecting box, a gas inlet end of the closed gas collecting box is communicated with a circulating fan outside the first furnace body through a first gas inlet pipe, a gas outlet end of the closed gas collecting box is connected with a hot gas inlet assembly used for heating glass on a glass conveying roller way, a waste gas exhaust assembly used for exhausting waste gas generated in the glass heating process is further arranged on one side, close to the first furnace body, of the glass conveying roller way, the waste gas exhaust assembly is connected with a heat exchange device through a first exhaust pipe, high-temperature waste gas entering the heat exchange device exchanges heat with cold air entering the first gas inlet pipe, and the heat exchange device is connected with the circulating fan through a second exhaust pipe.
Preferably, the hot gas inlet assembly and the waste gas exhaust assembly respectively comprise two first gas pipes which are arranged in parallel, a plurality of second gas pipes which are parallel to each other are connected between the two first gas pipes in an air-tight manner, and a plurality of vent holes are uniformly formed in one side, facing the glass conveying roller way, of each second gas pipe; two of the hot gas inlet assemblies are connected with the closed gas collecting box through a second gas inlet pipe, and two of the waste gas exhaust assemblies are connected with the gas outlet ends of the first gas pipes.
Preferably, the air inlet of the first air inlet pipe is connected with the air inlet of the circulating fan, and the air outlet of the first air inlet pipe is connected with the air inlet of the closed air collecting box; and the air outlet of the second exhaust pipe is connected with the air outlet of the circulating fan.
Preferably, the first furnace body and the second furnace body both comprise furnace bottom plates, and the vent holes of the hot gas inlet assembly and the waste gas exhaust assembly are connected with the air holes formed in the furnace bottom plates.
Preferably, the glass rollgang includes the conveyer belt that punches a hole, suit the conveyer roller at the conveyer belt both ends that punches a hole and with the gear motor that the conveyer roller pivot is connected.
Preferably, the exhaust port of the circulating fan is connected with a gas purification device.
The invention has the following advantages:
(1) the heating furnace heats the glass by spraying high-temperature gas to the surface of the glass, so that the defects of low heating efficiency and long heating time of the traditional heating furnace in the process of heating the glass with high reflectivity and high transmissivity are effectively overcome;
(2) the heating furnace heats glass in a heat convection mode of the hot gas inlet assemblies of the two furnace bodies, and the waste gas exhaust assembly enables high-temperature waste gas to form secondary convection in the glass conveying roller way, so that the heat energy convection efficiency is improved, the glass heating uniformity and heating efficiency are improved, and the glass quality is ensured;
(3) according to the invention, high-temperature waste gas generated by heating glass is used for preheating air before entering the closed gas collecting box, so that the energy consumption of the heated gas is reduced, and the utilization rate of energy is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of a first furnace body according to the present invention;
FIG. 3 is an enlarged view of A of FIG. 1 according to the present invention;
fig. 4 is a schematic structural view of a hot gas intake assembly and an exhaust gas exhaust assembly of the present invention.
In the figure:
1-a first furnace body; 2-a second furnace body; 3-glass conveying roller way; 4-a first inlet pipe; 5-a gas heating device; 6-circulating fan; 7-a first exhaust pipe; 8-a heat exchange device; 9-a second exhaust pipe; 10-a closed gas collection tank; 11-hot gas intake assembly; 12-an exhaust gas exhaust assembly;
101-a first trachea; 102-a second trachea; 103-a vent hole; 104-a second intake pipe; 105-a furnace floor; 106-air holes;
201-punching conveyer belt; 202-transport rollers.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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 invention.
As shown in fig. 1 to 4, the present invention provides a glass heating furnace which can improve the heating efficiency of the apparatus by heating glass by means of circulating convection heating, and can effectively use the heat of high-temperature exhaust gas generated during the heating of glass. Specifically, the method comprises the following steps:
the glass heating furnace usually comprises a first furnace body 1 and a second furnace body 2 which are symmetrically arranged, wherein the first furnace body 1 and the second furnace body 2 have the same internal structure, and a glass conveying roller way 3 is arranged between the first furnace body 1 and the second furnace body 2.
Wherein, the glass rollgang 3 is including punching a hole conveyer belt 201, suit the conveyer roller 202 and with the gear motor that the 202 pivots of conveyer roller are connected of conveyer roller 201 both ends of punching a hole. The speed reducing motor drives the conveying roller 202 to drive the punching conveyer belt 201 to transmit, and the glass plate is conveyed. The punched conveyer belt 201 has many air holes, so that the transmission of the heat up and down of the punched conveyer belt 201 is facilitated.
The vertical symmetry setting of first furnace body 1 (top) and second furnace body 2 (below), steam in first furnace body 1 (top) and second furnace body 2 (below) all spouts the glass on the glass rollgang 3 that is located the middle part, and the part high temperature waste gas that first furnace body 1 (top) produced is absorbed by circulating fan 6 in second furnace body 2 (below), and the part high temperature waste gas that second furnace body 2 (below) produced is absorbed by circulating fan 6 in first furnace body 1 (top), thereby strengthened the convection current effect of glass rollgang 3 gas within a definite time. Since the structure of the second furnace body 2 is the same as that of the first furnace body 1, only the structure of the first furnace body 1 will be described here. Specifically, the method comprises the following steps:
a sealed gas collecting tank 10 is arranged inside the first furnace body 1, and a gas heating device 5 is arranged in the sealed gas collecting tank 10. The heating device 5 is used for heating the gas in the closed gas collecting box 10.
The air inlet end of the closed air collecting box 10 is communicated with a circulating fan 6 arranged outside the first furnace body 1 through a first air inlet pipe 4, the air outlet end of the closed air collecting box 10 is connected with a hot air inlet assembly 11 used for heating glass on the glass conveying roller way 3, one side of the glass conveying roller way 3 close to the first furnace body 1 is further provided with a waste gas exhaust assembly 12 used for discharging waste gas generated in the glass heating process, the waste gas exhaust assembly 12 is connected with a heat exchange device 8 through a first exhaust pipe 7 and enters the high-temperature waste gas of the heat exchange device 8 and cold air entering the first air inlet pipe 4 to exchange heat, and the heat exchange device 8 is connected with the circulating fan 6 through a second exhaust pipe 9.
The hot gas inlet assembly and the waste gas outlet assembly respectively comprise two first gas pipes 101 which are arranged in parallel, a plurality of second gas pipes 102 which are parallel to each other are connected between the two first gas pipes 101 in a gas manner, and a plurality of vent holes 103 are uniformly formed in one side of each second gas pipe 102, which faces the glass conveying roller table 3; the two first air pipes 101 of the hot air inlet assembly are connected with the closed gas collecting box 10 through second air inlet pipes 104, and the air outlet ends of the two first air pipes 101 of the waste gas exhaust assembly are connected with the air inlet end of the first exhaust pipe 7.
Further, an air inlet of the first air inlet pipe 4 is connected with an air inlet of the circulating fan 6, and an air outlet of the first air inlet pipe 4 is connected with an air inlet of the closed air collecting box 10; and the air outlet of the second exhaust pipe 9 is connected with the air outlet of the circulating fan 6.
An air inlet of the first air inlet pipe 4 is connected with an air inlet of the circulating fan 6, and an air outlet of the first air inlet pipe 4 is connected with an air inlet of the closed air collecting box 10; and the air outlet of the second exhaust pipe 9 is connected with the air outlet of the circulating fan 6.
The first furnace body 1 and the second furnace body 2 both comprise a furnace bottom plate 105, and the vent holes 103 of the hot gas inlet assembly and the waste gas exhaust assembly are connected with the air holes 106 formed in the furnace bottom plate 105.
Preferably, a gas purification device (not shown) is connected to the exhaust port of the circulating fan 6.
The device of the invention specifically works as follows:
after the circulating fan 6 of the first furnace body 1 draws cold air from the outside, the cold air enters the sealed air collecting box 10 through the first air inlet pipe 4 and is heated by the gas heating device 5 to become high-temperature hot air.
Then, hot air enters the hot air inlet assembly through the second air inlet pipe 104, enters the second air pipes 102 arranged in parallel through the two parallel first air pipes 101 of the hot air inlet assembly, and is finally sprayed to the surface of the glass on the glass conveying roller bed 3 through the vent holes 103 on the second air pipes 102;
similarly, the second furnace body 2 also sprays hot air from the other side of the glass conveying roller way 3 to heat the glass. The two hot air flows are oppositely arranged, so that hot air convection is formed, the uniformity of glass heating is improved, and the heating efficiency is improved.
In the process of heating glass, high-temperature waste gas is generated, and the high-temperature waste gas is usually directly discharged without being treated or is purified by a purification device and then is discharged into the atmosphere, so that waste of heat energy in the high-temperature waste gas is caused.
Therefore, the waste gas exhaust assembly is arranged, so that the high-temperature waste gas forms second convection in the glass conveying roller way 3, the convection efficiency of hot gas is further improved, the heat energy of the part is effectively utilized, and the energy consumption in the glass heating process is reduced. Specifically, the method comprises the following steps:
the exhaust gas exhaust assembly absorbs high-temperature exhaust gas generated in the opposite furnace body on the one hand, and accelerates heat radiation of the opposite furnace body to the furnace body on the other hand, so that the heat convection efficiency is improved.
Then, high-temperature waste gas enters the second air pipe 102 through the vent holes 103 of the waste gas exhaust assembly, the gas in the second air pipe 102 then enters the two first air pipes 101 which are arranged in parallel, enters the heat exchange device 8 from the first air pipe 101 through the first exhaust pipe 7, and exchanges heat with cold air in the first air inlet pipe 4 connected with the heat exchange device, so that the air before entering the closed gas collecting box 10 is preheated, the energy consumption of heating gas is reduced, and the utilization rate of energy is improved. The waste gas with the temperature reduced after heat exchange is purified by the gas purification device through the exhaust port of the circulating fan 6 and then discharged.
The heating furnace heats the glass by spraying high-temperature gas to the surface of the glass, so that the defects of low heating efficiency and long heating time of the traditional heating furnace in the process of heating the glass with high reflectivity and high transmissivity are effectively overcome; the heating furnace heats the glass in a heat convection mode of the hot air inlet assemblies of the two furnace bodies, and the waste gas exhaust assembly enables high-temperature waste gas to form secondary convection in the glass conveying roller way, so that the heat energy convection efficiency is improved, the glass heating uniformity and the heating efficiency are improved, and the glass quality is guaranteed.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. A glass heating furnace is characterized in that: the furnace comprises a first furnace body (1) and a second furnace body (2) which are symmetrically arranged, wherein the first furnace body (1) and the second furnace body (2) have the same internal structure, and a glass conveying roller way (3) is arranged between the first furnace body and the second furnace body;
a closed gas collecting box (10) is arranged in the first furnace body (1), a gas heating device (5) is arranged in the closed gas collecting box (10), the gas inlet end of the closed gas collecting box (10) is in gas communication with a circulating fan (6) arranged outside the first furnace body (1) through a first gas inlet pipe (4), the gas outlet end of the closed gas collecting box (10) is connected with a hot gas inlet component for heating the glass on the glass conveying roller way (3), one side of the glass conveying roller way (3) close to the first furnace body (1) is also provided with a waste gas exhaust component for exhausting waste gas generated in the glass heating process, the waste gas exhaust component is connected with a heat exchange device (8) through a first gas outlet pipe (7), and the high-temperature waste gas entering the heat exchange device (8) exchanges heat with cold air entering the first gas inlet pipe (4), and the heat exchange device (8) is connected with the circulating fan (6) through a second exhaust pipe (9).
2. The glass heating furnace according to claim 1, wherein: the hot gas inlet assembly and the waste gas exhaust assembly respectively comprise two first gas pipes (101) which are arranged in parallel, a plurality of second gas pipes (102) which are parallel to each other are pneumatically connected between the two first gas pipes (101), and a plurality of vent holes (103) are uniformly formed in one side of each second gas pipe (102) facing the glass conveying roller way (3); two of the hot gas inlet assembly are connected with the first gas pipes (101) through second gas inlet pipes (104) of the closed gas collecting box (10), and two of the waste gas exhaust assembly are connected with the gas outlet ends of the first gas pipes (101) of the closed gas collecting box and the gas inlet ends of the first gas exhaust pipes (7).
3. The glass heating furnace according to claim 1, wherein: the air inlet of the first air inlet pipe (4) is connected with the air inlet of the circulating fan (6), and the air outlet of the first air inlet pipe (4) is connected with the air inlet of the closed air collecting box (10); and the air outlet of the second exhaust pipe (9) is connected with the air outlet of the circulating fan (6).
4. A glass heating furnace according to claim 2, characterized in that: first furnace body (1) and second furnace body (2) all include bottom plate (105), air vent (103) of hot gas admission subassembly and waste gas exhaust subassembly are all connected on the gas pocket (106) that set up on bottom plate (105).
5. The glass heating furnace according to claim 1, wherein: glass rollgang (3) are including punching a hole conveyer belt (201), suit the conveyer roller (202) at conveyer belt (201) both ends of punching a hole and with the gear motor that conveyer roller (202) pivot is connected.
6. The glass heating furnace according to claim 1, wherein: and an exhaust port of the circulating fan (6) is connected with a gas purification device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911290101.6A CN110818239A (en) | 2019-12-16 | 2019-12-16 | Glass heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911290101.6A CN110818239A (en) | 2019-12-16 | 2019-12-16 | Glass heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110818239A true CN110818239A (en) | 2020-02-21 |
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ID=69545607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911290101.6A Pending CN110818239A (en) | 2019-12-16 | 2019-12-16 | Glass heating furnace |
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| Country | Link |
|---|---|
| CN (1) | CN110818239A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6505483B1 (en) * | 2000-02-25 | 2003-01-14 | Surface Combustion, Inc. | Glass transportation system |
| CN2701861Y (en) * | 2004-05-27 | 2005-05-25 | 赵雁 | Convection type glass heating furnace |
| CN201817379U (en) * | 2010-10-21 | 2011-05-04 | 杭州同昌机械有限公司 | Infrared temperature detecting mechanism for glass tempering furnace |
| CN202945153U (en) * | 2012-11-29 | 2013-05-22 | 秦皇岛市运通玻璃机电技术有限公司 | Energy-saving heating air circulation and convection heating glass heating furnace |
| CN203144279U (en) * | 2013-02-04 | 2013-08-21 | 扬州恒泰玻璃有限公司 | High/low-pressure energy-saving type tempered glass electric furnace |
-
2019
- 2019-12-16 CN CN201911290101.6A patent/CN110818239A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6505483B1 (en) * | 2000-02-25 | 2003-01-14 | Surface Combustion, Inc. | Glass transportation system |
| CN2701861Y (en) * | 2004-05-27 | 2005-05-25 | 赵雁 | Convection type glass heating furnace |
| CN201817379U (en) * | 2010-10-21 | 2011-05-04 | 杭州同昌机械有限公司 | Infrared temperature detecting mechanism for glass tempering furnace |
| CN202945153U (en) * | 2012-11-29 | 2013-05-22 | 秦皇岛市运通玻璃机电技术有限公司 | Energy-saving heating air circulation and convection heating glass heating furnace |
| CN203144279U (en) * | 2013-02-04 | 2013-08-21 | 扬州恒泰玻璃有限公司 | High/low-pressure energy-saving type tempered glass electric furnace |
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Application publication date: 20200221 |
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