CN104829105A - Glass tempering furnace - Google Patents

Abstract

The invention discloses a glass tempering furnace. The glass tempering furnace comprises an upper piece part, a heating part, a tempering part and a discharging part and the above parts are orderly connected from front to back. Conveyers are arranged in the heating part and the tempering par. The conveyers drive glass to be processed to move forwards. An air supply assembly is connected to the side of the tempering part and is used for supplying air. A cooling part is arranged between the tempering part and the discharging part and is used for cooling glass. The glass tempering furnace has a high automation degree, utilizes an injection flow increasing principle, greatly improves an air flow temperature, realizes forced improvement of convective circulation of hot air in a furnace, has furnace temperature uniformity and stability and has good glass heating effects.

Description

A glass tempering furnace

technical field

The invention relates to the field of glass production, in particular to a glass tempering furnace.

Background technique

Glass is a transparent solid at room temperature . It forms a continuous network structure when it melts . It is a silicate non-metallic material that gradually increases in viscosity and hardens during cooling. Glass is widely used in buildings to transmit light and wind. Glass tempering is a common processing technology of glass. It is generally carried out in a glass tempering furnace. The glass tempering furnace uses physical or chemical methods to form a compressive stress layer on the surface of the glass and a tensile stress layer inside; when the glass is subjected to external force, the compressive stress layer The stress layer can offset part of the tensile stress and prevent the glass from breaking, so as to achieve the purpose of improving the strength of the glass. Not only that, the micro-cracks on the glass surface become finer under this compressive stress, which also improves the strength of the glass to a certain extent. . The existing glass tempering furnaces are complex in operation and low in automation, requiring multiple operators to operate at the same time, resulting in high production costs and low production efficiency.

Contents of the invention

The technical problem to be solved by the present invention is to provide a high degree of automation based on the above-mentioned deficiencies in the prior art, which adopts the principle of jet flow increase, the air temperature is greatly increased, the hot air convection cycle in the furnace is forcibly enhanced, and the uniformity and stability of the furnace temperature are improved. , a glass tempering furnace with better heating effect of glass in the furnace.

The technical solution adopted by the present invention is as follows: a glass tempering furnace, including an upper part, a heating part, a tempering part and a discharge part connected from front to back, wherein, the above-mentioned heating part and tempering part are equipped with conveying devices , the conveying device drives the glass to be processed to move forward; the side of the tempering part is connected with an air supply assembly for air supply; a cooling part is provided between the tempering part and the discharge part for cooling the glass.

Preferably, the upper part is independently arranged at the front end of the heating part, and at least two rollers are arranged at intervals on the top of the upper part, and the two ends of the rollers are respectively arranged on the front and rear side walls of the upper part, and Rotate freely around the side wall of the upper part, push forward the glass sheet to be processed placed on the roller, and the glass slides into the heating part.

Preferably, the transmission assembly includes a transmission belt and a transmission motor, wherein the transmission belt is arranged in the heating part and the tempering part, the transmission motor is arranged on the side of the heating part and the tempering part, and the transmission motor drives the transmission belt to move forward , in order to transport the glass sheets to be processed.

Preferably, the heating part is a strip-shaped heating furnace, and the middle part of the heating furnace is a cavity structure, and the conveyor belt of the above-mentioned transmission assembly extends through the cavity structure to both ends of the heating furnace, and extends out of the heating furnace In addition, the glass sheet slides into the conveyor belt through the upper piece, and enters the heating furnace along with the conveyor belt for heating.

Preferably, the tempering section includes a tempering furnace and an air supply assembly, wherein the interior of the tempering furnace is a cavity structure, the conveyor belt extends into the tempering furnace and extends to both sides of the tempering furnace, and the heated glass sheet It is transported to the tempering furnace through the conveyor belt for tempering; the above-mentioned air supply component is connected to the side of the tempering furnace so that the jet air can be injected into the tempering furnace.

Preferably, the air supply assembly includes a first fan, a first air pipe, a second fan and a second air pipe, wherein the first fan and the second fan are respectively arranged at the side of the tempering furnace; The outer ends of the air duct and the second air duct are respectively connected to the first fan and the second fan, and the inner ends of the first duct and the second duct merge together to form a nozzle, which is connected to the tempering furnace, and It communicates with the interior of the tempering furnace so that the gas can be injected into the tempering furnace.

Preferably, the cooling unit includes a cooling fan and a cooling head, wherein the cooling head has a bell mouth structure, and the bell mouth is arranged on the side of the conveyor belt, and the cooling head includes double-layer cooling pipes arranged at intervals up and down. The conveyor belt passes through the gap between the two layers of cooling pipes and extends outward; the above-mentioned cooling fan is arranged at the outer end of the cooling head so as to provide cold air into the cooling head to cool the glass sheets.

Preferably, the discharge part is independently arranged at the rear end of the cooling part, at least two rollers are arranged at intervals on the top of the upper discharge part, and the two ends of the rollers are respectively arranged on the front and rear side walls of the discharge part , and rotate freely around the side wall of the unloading section, and the cooled glass sheet slides out backwards through the rollers.

Preferably, a main cable is provided on the side of the heating part, and the main cable is connected to the above-mentioned transmission motor, heating furnace, tempering furnace and cooling fan through cables.

The beneficial effects of the present invention are:

The present invention improves and innovates the defects and deficiencies existing in the prior art. The working process of the present invention is mainly composed of four parts: the discharge section, the convection heating section, the flat tempering section, and the section extraction section, as well as the high-pressure centrifugal fan, the air supply pipe, the collecting It is composed of bellows, gas circuit, electrical control cabinet, operating table and so on. The tempering furnace of the present invention is a forced convection leveling tempering unit, which adopts a unique jet flow increasing technology, and mixes the hot air in the furnace with the preheated compressed air in the nozzle, so that the temperature of the airflow ejected from the nozzle to the glass surface is greatly improved. Improvement, the hot air convection circulation in the furnace is forced to strengthen, the uniformity and stability of the furnace temperature are improved, and the heating effect of the glass in the furnace is better. Compared with the general compressed air convection model, the compressed air consumption is reduced by more than half. The drive of each part of the unit adopts AC frequency conversion technology, driven by a motor, and the reciprocating drive speed is adjustable; the operation of each part is automatically completed by the control system composed of industrial computers and PLC ; the air pressure of the air supply system is automatically adjusted, the upper and lower air grids are electrically opened and closed, and the air volume Electric balance, automatic on-off of the main air valve; the main drive of the furnace body and air grid adopts O-shaped belt transmission, and the furnace body adopts triple compound transmission synchronization technology, that is, orthogonal circular transmission belts plus interconnected circular transmission belts; The main drive adopts chain drive, which has a simple and reliable structure; the main drive of the furnace body and air grid is equipped with a manual emergency film output function when the power is cut off. According to customer needs, an emergency power supply device can also be added to ensure the low speed of the ceramic roller table of the furnace body after a power failure. run.

Description of drawings

Fig. 1 is a block principle diagram of the present invention.

Fig. 2 is a front view of the present invention.

Figure 3 is a top view of the present invention.

Fig. 4 is a schematic block diagram of the air supply assembly of the present invention.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

As shown in Figures 1 to 3, the technical solution adopted by the present invention is as follows: a glass tempering furnace, comprising an upper piece part 1, a heating part 2, a tempering part 3 and a discharge part 4 connected from front to back, Wherein, the above-mentioned heating part 2 and the tempering part 3 are equipped with a conveying device 5, and the conveying device 5 drives the glass to be processed to move forward; the side part of the above-mentioned tempering part 3 is connected with an air supply assembly for air supply; A cooling section 8 is provided between the 3 and the unloading section 4 to cool the glass.

The upper part 1 is independently arranged at the front end of the heating part 2, and at least two rollers are arranged at intervals on the top of the upper part 1. The two ends of the rollers are respectively arranged on the front and rear side walls of the upper part 1, and wound The side wall of the piece part 1 rotates freely, pushing forward the glass piece to be processed placed on the roller, and the glass slides into the heating part 2 .

The transmission assembly 5 includes a transmission belt and a transmission motor, wherein the above-mentioned transmission belt is arranged in the above-mentioned heating part 2 and the tempering part 3, and the transmission motor is arranged on the side of the heating part 2 and the tempering part 3, and the transmission motor drives the transmission belt to move forward , in order to transport the glass sheets to be processed.

The heating part 2 is a strip-shaped heating furnace. The middle part of the heating furnace is a cavity structure. The transmission belt of the above-mentioned transmission assembly 5 extends through the cavity structure to both ends of the heating furnace and extends out of the heating furnace. The glass sheet It slides into the conveyor belt through the upper part 1, and enters the heating furnace along with the conveyor belt for heating.

The tempering section 3 includes a tempering furnace and an air supply assembly, wherein the interior of the above tempering furnace is a cavity structure, the conveyor belt extends into the tempering furnace and extends to both sides of the tempering furnace, and the heated glass sheet is conveyed to The tempering is carried out in the tempering furnace; the above-mentioned air supply component is connected to the side of the tempering furnace so as to inject air into the tempering furnace.

The air supply assembly includes a first fan 9, a first air duct 10, a second fan 11 and a second air duct 12, wherein the first fan 9 and the second fan 11 are respectively arranged on the side of the tempering furnace; The outer ends of the air duct 10 and the second air duct 12 are respectively connected to the first blower fan 9 and the second blower fan 11, and the inner ends of the first air duct 10 and the second air duct 12 merge together to form a nozzle, and the nozzle is connected On the tempering furnace, and communicate with the interior of the tempering furnace, so that the gas can be sprayed into the tempering furnace.

The cooling part 8 includes a cooling fan 6 and a cooling head 7, wherein the above-mentioned cooling head 7 is a bell mouth structure, and its bell mouth is arranged on the side of the above-mentioned conveyor belt, and the cooling head 7 includes double-layer cooling pipes arranged at intervals up and down. The belt passes through the gap between the two layers of cooling pipes and extends outward; the above-mentioned cooling fan 6 is arranged at the outer end of the cooling head 7 to provide cold air into the cooling head 7 to cool the glass sheet.

The discharge part 4 is independently arranged on the rear end of the cooling part 8, and the top of the upper discharge part 4 is provided with at least two rollers at intervals, and the two ends of the rollers are respectively arranged on the front and rear side walls of the discharge part 4, and Rotate freely around the side wall of the unloading section 4, and the cooled glass sheet slides out backwards through the rollers.

The side of the heating part 2 is provided with a main cable 13, and the main cable 13 is connected with the above-mentioned transmission motor, heating furnace, tempering furnace and cooling fan 6 through cables

Further, the working process of the present invention is mainly composed of four parts, namely, the segment release section, the convection heating section, the flat tempering section, and the segment extraction section, as well as high-pressure centrifugal fans, air supply pipes, air collection boxes, gas circuits, electrical control cabinets, and operating consoles. . The tempering furnace of the present invention is a forced convection leveling tempering unit, which adopts a unique jet flow increasing technology, and mixes the hot air in the furnace with the preheated compressed air in the nozzle, so that the temperature of the airflow ejected from the nozzle to the glass surface is greatly improved. Improvement, the hot air convection circulation in the furnace is forced to strengthen, the uniformity and stability of the furnace temperature are improved, and the heating effect of the glass in the furnace is better. Compared with the general compressed air convection model, the compressed air consumption is reduced by more than half. The transmission of each part of the unit adopts AC frequency conversion technology, driven by motor, and the reciprocating drive speed is adjustable; the operation of each part is automatically completed by the control system composed of industrial computers and PLC ; the air pressure of the air supply system is automatically adjusted, the upper and lower air grids are electrically opened and closed, and the air volume Electric balance, automatic on-off of the main air valve; the main drive of the furnace body and air grid adopts O-shaped belt transmission, and the furnace body adopts triple compound transmission synchronization technology, that is, orthogonal circular transmission belts plus interconnected circular transmission belts; The main drive adopts chain drive, which is simple and reliable in structure; the main drive of the furnace body and air grid is equipped with a manual emergency film output function when the power is cut off. According to customer needs, an emergency power supply device can also be added to ensure the low speed of the ceramic roller table of the furnace body after a power failure. run.

The embodiment of the present invention is only to introduce its specific implementation, not to limit its protection scope. Those skilled in the industry can make some modifications under the inspiration of this embodiment, so all equivalent changes or modifications made according to the patent scope of the present invention fall within the scope of the patent claims of the present invention.

Claims (9)

1. A glass tempering furnace, characterized in that it includes an upper part (1), a heating part (2), a tempering part (3) and a discharge part (4) connected from front to back, wherein the above Both the heating part (2) and the tempering part (3) are equipped with a conveying device (5), and the conveying device (5) drives the glass to be processed to move forward; the side of the tempering part (3) is connected with an air supply assembly, In order to supply air; a cooling part (8) is provided between the tempering part (3) and the discharge part (4) to cool the glass. 2. A glass tempering furnace according to claim 1, characterized in that: the upper part (1) is independently arranged at the front end of the heating part (2), and the top of the upper part (1) is arranged at intervals At least two rollers, the two ends of the rollers are respectively arranged on the front and rear side walls of the upper part (1), and freely rotate around the side walls of the upper part (1), pushing forward the rollers placed on the rollers The glass sheet to be processed slides into the heating part (2). 3. A glass tempering furnace according to claim 2, characterized in that: the transmission assembly (5) includes a transmission belt and a transmission motor, wherein the transmission belt is arranged on the heating part (2) and the tempering part In (3), the conveying motor is arranged on the side of the heating part (2) and the tempering part (3), and the conveying motor drives the conveying belt to move forward so as to convey the glass sheets to be processed. 4. A glass tempering furnace according to claim 3, characterized in that: the heating part (2) is a strip-shaped heating furnace, the middle part of the heating furnace is a cavity structure, and the above-mentioned transmission component (5 ) conveyor belt extends through the cavity structure to both ends of the heating furnace, and extends out of the heating furnace, the glass sheet slides into the conveyor belt through the upper part (1), and enters the heating furnace along with the conveyor belt for heating. 5. A glass tempering furnace according to claim 4, characterized in that: the tempering part (3) includes a tempering furnace and an air supply assembly, wherein the interior of the tempering furnace is a cavity structure, and the conveyor belt extends Into the tempering furnace, and extend to both sides of the tempering furnace, the heated glass sheet is transported to the tempering furnace through the conveyor belt for tempering; the above-mentioned air supply component is connected to the side of the tempering furnace, so that the jet air can enter the tempering furnace. 6. A glass tempering furnace according to claim 5, characterized in that: said air supply assembly includes a first fan (9), a first air duct (10), a second fan (11) and a second An air duct (12), wherein the first fan (9) and the second fan (11) are respectively arranged on the side of the tempering furnace; the outer ends of the first air duct (10) and the second air duct (12) Connected to the first fan (9) and the second fan (11) respectively, the inner ends of the first air pipe (10) and the second air pipe (12) merge together to form a nozzle, and the nozzle is connected to the tempering furnace , and communicate with the interior of the tempering furnace so that the gas can be injected into the tempering furnace. 7. A glass tempering furnace according to claim 6, characterized in that: the cooling part (8) includes a cooling fan (6) and a cooling head (7), wherein the cooling head (7) is a horn mouth structure, the bell mouth is set on the side of the above-mentioned conveyor belt, the cooling head (7) includes double-layer cooling tubes arranged at intervals up and down, the above-mentioned conveyor belt passes through the gap between the two layers of cooling tubes, and extends outward; the above-mentioned The cooling fan (6) is arranged on the outer end of the cooling head (7), so as to provide cold air into the cooling head (7) to cool the glass sheet. 8. A glass tempering furnace according to claim 7, characterized in that: the discharge part (4) is independently arranged at the rear end of the cooling part (8), and the top of the upper discharge part (4) is spaced There are at least two rollers, and the two ends of the rollers are respectively arranged on the front and rear side walls of the unloading part (4), and freely rotate around the side walls of the unloading part (4), and the cooled glass sheets are passed through the rollers. The wheels slide out backwards. 9. A glass tempering furnace according to claim 8, characterized in that: the side of the heating part (2) is provided with a main cable (13), and the main cable (13) is connected to the above-mentioned transmission motor, Heating furnace, tempering furnace and cooling fan (6) are connected.