A method for treating a blockage of a tempering furnace and a tempering furnace

Abstract

The present invention provides a method for handling a furnace blockage of a tempering furnace and a tempering furnace, wherein the glass is detected by the detection device, and when any detection device at the heating section and the furnace-out acceleration section cannot detect the signal of the glass, the position of the detection device that first cannot detect the signal of the glass is taken as the dividing point, and the glass is continuously forwardly transported downstream of the dividing point, and the glass is reversely transported upstream of the dividing point. The method of the present invention can more quickly detect furnace blockage and quickly discharge the glass that is blocking the furnace.

Description

Technical Field

[0001] The invention relates to the technical field of glass production equipment, and in particular to a method for treating a blockage of a tempering furnace and the tempering furnace. Background Art

[0002] During the tempering process of glass, because part of the glass body contains nickel sulfide, after being tempered at high temperature, the internal nickel sulfide and other impurities will expand rapidly, causing the glass to encounter rapid high-pressure cooling in the furnace discharge section, resulting in glass bursting; or the glass will produce cracks in the furnace, and during the hot state transmission, the glass will deviate, causing the glass to block the furnace at the entrance, causing more and more subsequent glass to accumulate, and blocking the furnace outlet and cooling air grid section and even the internal blockage of the tempering furnace, causing a large amount of high-temperature glass to be jammed, causing damage to the ceramic roller, and the high-temperature glass will melt the tempering furnace transmission motor control system and heating and other important lines, and at the same time cause large-scale shutdown maintenance. In the prior art, after the furnace outlet is found to be blocked, stop adding glass to the furnace and hit the glass in the furnace to discharge the glass downstream. Not only is the speed of discharging the glass slow, but there is also a long delay in discovering the furnace blockage. As the design of the heating furnace is getting longer and longer, and the transmission speed in the furnace is getting faster and faster, it is necessary to discover the furnace blockage phenomenon more timely and speed up the discharge of glass when the furnace is blocked. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a method for treating a furnace blockage in a tempering furnace, which can treat the furnace blockage phenomenon more quickly.

[0004] The invention also provides a tempering furnace.

[0005] According to a method for handling a furnace blockage in a tempering furnace according to an embodiment of the first aspect of the present invention, the tempering furnace includes a conveying device and a plurality of detection devices, the conveying device is used to carry and convey glass, the conveying device can drive the glass to move along a first direction or a second direction, the second direction is opposite to the first direction, a plurality of the detection devices are arranged at intervals along the first direction, and the detection devices are used to detect whether the glass is located in a detection area of ​​the detection devices; the method for handling a furnace blockage includes the following steps: the conveying device conveys the glass along the first direction; when at least one of the detection devices fails to detect the glass within a preset detection time, taking the position of the detection device that first fails to detect the glass as a dividing point, the conveying device drives the glass located downstream of the dividing point to move along the first direction, and the conveying device drives the glass located upstream of the dividing point to move along the second direction.

[0006] The method for handling a blockage in a tempering furnace according to the first aspect of the present invention has at least the following beneficial effects: compared with the prior art which requires manual detection of the blockage, the blockage can be detected and responded to more quickly, and a two-way furnace discharge method can be used to discharge the glass blocked in the furnace more quickly.

[0007] According to some embodiments of the present invention, the conveying device includes a heating section and an out-of-furnace acceleration section, the heating section is located upstream of the out-of-furnace acceleration section, and the conveying speed of the out-of-furnace acceleration section is greater than that of the heating section; the detection device located in the heating section is a first detection device, and the detection device located in the out-of-furnace acceleration section is a second detection device, and the preset detection time of the second detection device is less than the preset detection time of the first detection device.

[0008] According to some embodiments of the present invention, the tempering furnace also includes a cover body and a first lifting device, the cover body covers the top of the furnace acceleration section, and the first lifting device is used to adjust the height of the cover body relative to the furnace acceleration section; the furnace blockage processing method includes: when any of the detection devices cannot detect the signal of the glass within a preset time, the first lifting device lifts the cover body.

[0009] According to some embodiments of the present invention, the conveying device also includes a wind grille cooling section, which is located downstream of the accelerated furnace discharge section. The tempering furnace also includes a blowing rack and a second lifting device, which is arranged above the wind grille cooling section. The blowing rack is used to blow air to the glass on the wind grille cooling section, and the second lifting device is used to raise the height of the blowing rack relative to the wind grille cooling section. The furnace blockage processing method includes: when any of the detection devices cannot detect a signal of the glass, the second lifting device lifts the blowing rack.

[0010] According to some embodiments of the present invention, glass hoppers are provided at both ends of the conveying device, and the glass hoppers are used to store the glass discharged from the tempering furnace.

[0011] According to some embodiments of the present invention, a crushing device is provided on the glass hopper, and the crushing device is used to crush the glass discharged into the glass hopper.

[0012] According to some embodiments of the present invention, a heating device is provided on the conveying device, and the heating device is used to heat the glass; the furnace blockage treatment method includes: when any of the detection devices cannot detect a signal from the glass within a preset detection time, cutting off the power supply of the heating device.

[0013] According to some embodiments of the present invention, the furnace-out acceleration section is a roller conveyor, which includes a plurality of rollers, and the movement of the plurality of rollers is independent of each other; a second detection device is arranged between every two adjacent rollers; the furnace blockage processing method includes: when the dividing point is in the furnace-out acceleration section, the rollers downstream of the dividing point drive the glass to move along the first direction; the rollers upstream of the dividing point and the heating section drive the glass to move along the second direction.

[0014] According to some embodiments of the present invention, the heating section includes multiple conveying sections, the operations of the multiple conveying sections are independent of each other, and a second detection device is arranged between every two adjacent conveying sections; the furnace blockage processing method includes: when the dividing point is in the heating section, the conveying section downstream of the dividing point and the furnace-out acceleration section drive the glass to move along the first direction; the conveying section upstream of the dividing point drives the glass to move along the second direction.

[0015] According to an embodiment of the second aspect of the present invention, the tempering furnace includes a processor and a memory; the memory stores a computer program, and the processor is used to execute the computer program to implement the method for treating a blockage of a tempering furnace as described in any one of claims 1-9.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 is a schematic diagram of a tempering furnace of the present invention;

[0019] Figure 2 for Figure 1 Schematic diagram of the tempering furnace without the glass bucket;

[0020] Figure 3 It is a schematic diagram of the furnace exit acceleration section of the tempering furnace of the present invention.

[0021] Reference numerals:

[0022] 1. Conveying device; 11. Heating section; 111. Conveying section; 12. Ex-furnace acceleration section; 121. First lifting device; 122. Cover body; 123. Roller conveyor; 1231. Roller; 13. Wind grille cooling section; 131. Second lifting device; 132. Blowing rack; 2. Glass bucket; 3. Crushing device; 4. Detection device; 41. First detection device; 42. Second detection device; 5. Demarcation point. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] Reference Figure 1 and Figure 2 The tempering furnace includes a conveying device 1, which includes a heating section 11, a furnace acceleration section 12 and a wind grid cooling section 13 in sequence. The tempering furnace also includes a detection device 4; the heating section 11 is used to heat the glass. In the heating section 11 of the tempered glass, the glass needs to be heated and kept warm for a long time, and some processing operations will also be performed on the glass. Therefore, this section will be set longer. The process has gradually developed from the original 30 meters to the current 60 meters or even longer. Therefore, the glass is prone to offset in this section, resulting in glass blocking the furnace. When the tempering furnace is tempering the glass and there is no furnace blocking, the conveying device 1 will convey the glass along the first direction.

[0028] The furnace acceleration section 12 is used to accelerate the glass to the wind grille cooling section 13. The heating temperature in the furnace acceleration section 12 is lower than that in the heating section 11. The glass encounters rapid high-pressure cooling in the furnace acceleration section 12, which may cause the glass to burst; or the glass may produce cracks in the furnace, which may easily cause the glass to break and block the furnace. The wind grille cooling section 13 is used to cool the glass. Several detection devices 4 are arranged on the heating section 11 and the furnace acceleration section 12. The detection devices 4 are used to detect whether the glass in the heating section 11 and the furnace acceleration section 12 is located in the detection area of ​​the detection devices 4. By arranging the detection devices 4 in multiple locations in the heating section 11 and the furnace acceleration section 12, the furnace blocking phenomenon can be discovered in time when it first occurs, avoiding the furnace blocking phenomenon when the furnace outlet no longer discharges glass or the furnace inlet no longer enters glass, and the operation status of the glass in the furnace can be known more quickly and accurately.

[0029] The furnace blocking treatment method comprises the following steps: the glass is detected by the detection device 4, when the detection device 4 at any of the heating section 11 and the furnace acceleration section 12 cannot detect the signal of the glass, the position of the detection device 4 that first cannot detect the signal of the glass is taken as the dividing point 5, such as Figure 1 and Figure 2 As shown, when no glass is detected, it means that the upstream cannot transmit the glass downward, that is, it means that the upstream has a furnace blocking phenomenon. At this time, the furnace blocking point is located upstream of the dividing point 5, which can be regarded as the dividing point 5, that is, the furnace blocking point. If the glass continues to be transmitted after the furnace blocking phenomenon occurs, the glass upstream of the dividing point 5 will continue to be backlogged and blocked at the furnace blocking point, and the glass downstream of the dividing point 5 will continue to be discharged outward. Therefore, after obtaining the dividing point 5, the downstream of the dividing point 5 continues to transmit the glass along the first direction, and the glass that is smoothly transmitted in the furnace is transmitted out as soon as possible to avoid staying in the furnace for a long time and causing damage to various equipment in the furnace. The upstream of the dividing point 5 transmits the glass in the second direction, that is, the reverse direction of the first direction. The glass upstream of the dividing point 5 is transmitted along the second direction because of the occurrence of the furnace blocking phenomenon. The occurrence of the furnace blocking phenomenon makes it impossible for the glass upstream of the dividing point 5 to be transmitted out along the first transmission direction. Therefore, the glass that can be discharged is discharged as soon as possible through reverse transmission, so as to avoid staying in the furnace for a long time and causing damage to various equipment in the furnace, and at the same time avoid causing more serious blockage at the furnace blocking point.

[0030] It should be noted that "upstream" and "downstream" in the present invention are based on the first direction. For example, a certain glass located upstream of the demarcation point 5 means that the glass and the demarcation point 5 are arranged in sequence along the first direction, and the glass can reach the demarcation point 5 only after moving a certain distance along the first direction. Similarly, a certain glass located upstream of the demarcation point 5 means that the demarcation point 5 and the glass are arranged in sequence along the first direction.

[0031] like Figure 1As shown, according to some embodiments of the present invention, a cover 122 is provided on the furnace acceleration section 12, and the cover 122 is used to cover the furnace acceleration section 12. The cover 122 and the furnace acceleration section 12 enclose a first transmission channel. A first lifting device 121 that can be raised and lowered is provided between the cover 122 and the furnace acceleration section 12, and the first lifting device 121 is used to raise the height of the cover 122 relative to the furnace acceleration section 12; the furnace acceleration section 12 is located between the heating section 11 and the wind grille cooling section 13. The temperature of the glass in the middle of the heating section 11 and the wind grille cooling section 13 changes the fastest, is most likely to break, and is also most likely to cause furnace blocking, so the first lifting device 121 that can lift the cover 122 is provided. The furnace blocking treatment method includes: when the detection device 4 at any location of the heating section 11 and the furnace acceleration section 12 cannot detect the signal of the glass, the first lifting device 121 lifts the cover 122. When the furnace is blocked, the cover 122 is raised to increase the height of the transmission channel, so that the space in the transmission channel is larger, the glass blocking the furnace can be cleaned out faster and easier, and the transmission channel can be cleared more easily by manpower and equipment, thereby resuming production more quickly.

[0032] like Figure 1 As shown, according to some embodiments of the present invention, a blowing rack 132 is provided on the wind grid cooling section 13, a second conveying channel for glass to pass through is provided between the blowing rack 132 and the wind grid cooling section 13, the blowing rack 132 is used to blow the glass in the second conveying channel, a second lifting device 131 that can be raised and lowered is provided between the blowing rack 132 and the furnace acceleration section 12, the second lifting device 131 is used to raise the height of the blowing rack 132 relative to the wind grid cooling section 13; the furnace blockage treatment method includes: when the detection device 4 at any of the heating section 11 and the furnace acceleration section 12 cannot detect the signal of the glass, the second lifting device 131 will lift the blowing rack 132. When the furnace is blocked, the blowing rack 132 is lifted to avoid blockage again when discharging the glass, and to prevent the rapidly discharged glass from damaging the blowing rack 132.

[0033] According to some embodiments of the present invention, glass hoppers 2 are provided at both ends of the conveyor 1, i.e., at the glass inlet and the glass outlet of the tempering furnace, and the glass hoppers 2 are used to store the glass discharged when the tempering furnace is blocked. The glass hopper 2 is provided to discharge the glass discharged when the furnace is blocked into the glass hopper 2, which not only avoids the glass from splashing around when the glass is discharged, but also allows the recovery of glass fragments.

[0034] According to some embodiments of the present invention, both the heating section 11 and the furnace acceleration section 12 are provided with heating devices; the furnace blockage treatment method includes: when the detection device 4 at any of the heating section 11 and the furnace acceleration section 12 cannot detect the signal of the glass, the power supply of the heating device is cut off. Cutting off the power supply of the heating device avoids leakage or other dangerous phenomena that may cause harm to personnel when handling the furnace blockage.

[0035] According to some embodiments of the present invention, a crushing device 3 is provided on the glass hopper 2, and the crushing device 3 is used to crush the glass discharged into the glass hopper 2. The glass discharged into the glass hopper 2 is crushed, so as to accommodate more glass fragments.

[0036] like Figure 3 As shown, according to some embodiments of the present invention, the furnace acceleration section 12 is a roller conveyor 123, and the roller conveyor 123 includes a plurality of rollers 1231, each of which is provided with a mutually independent driving device; and a second detection device 42 is provided between adjacent rollers 1231. Since the furnace acceleration section 12 is a high-frequency point where furnace blocking occurs, each roller 1231 can be driven separately, and a second detection device 42 is provided between each adjacent roller 1231. The furnace blocking treatment method comprises: when the demarcation point 5 is heated, the conveying section 111 and the furnace acceleration section 12 downstream of the demarcation point 5 drive the glass to move along the first direction; and the conveying section 111 upstream of the demarcation point 5 drives the glass to move along the second direction. The demarcation point 5 can be set more accurately, and the furnace can be discharged more accurately after furnace blocking occurs, and the early warning after furnace blocking occurs is also faster.

[0037] like Figure 2 As shown, according to some embodiments of the present invention, the heating section 11 includes a plurality of conveying sections 111, and each conveying section 111 is provided with a mutually independent driving device. Specifically, each conveying section 111 is a roller conveyor. In the heating section, the rollers in the same roller conveyor have the same movement direction. The first detection device 41 is arranged at the connection of adjacent conveying sections 111; the furnace blocking treatment method comprises: when the demarcation point 5 is heated, the conveying section 111 downstream of the demarcation point 5 and the furnace exit acceleration section 12 drive the glass to move along the first direction; the conveying section 111 upstream of the demarcation point 5 drives the glass to move along the second direction. Compared with the furnace exit acceleration section 12, the heating section 11 is longer and has a lower probability of furnace blocking, so the heating section 11 can be segmented, and each section uses a driving device respectively. The interval between the first detection devices 41 can also be larger, and they are arranged between adjacent conveying sections 111, which can greatly reduce the cost.

[0038] According to the tempering furnace of the second aspect of the present invention, the tempering furnace includes a processor and a memory; the memory stores a computer program, and the processor is used to execute the computer program to implement the tempering furnace blockage treatment method as described in any one of the above embodiments.

[0039] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A method for treating a blockage in a tempering furnace, characterized in that: The tempering furnace comprises a conveying device and a plurality of detection devices, wherein the conveying device is used to carry and convey the glass, and the conveying device can drive the glass to move along a first direction or a second direction, wherein the second direction is opposite to the first direction, and the plurality of detection devices are arranged at intervals along the first direction, and the detection device is used to detect whether the glass is located in a detection area of ​​the detection device; The furnace blocking treatment method comprises the following steps: The conveying device conveys the glass along the first direction; When at least one of the detection devices fails to detect glass within a preset detection time, the position of the detection device that first fails to detect the glass is taken as a dividing point, and the conveying device drives the glass located downstream of the dividing point to move along the first direction, and the conveying device drives the glass located upstream of the dividing point to move along the second direction.

2. The method for treating a furnace blockage of a tempering furnace according to claim 1, characterized in that: The conveying device includes a heating section and an out-of-furnace acceleration section, the heating section is located upstream of the out-of-furnace acceleration section, and the conveying speed of the out-of-furnace acceleration section is greater than that of the heating section; the detection device located in the heating section is a first detection device, and the detection device located in the out-of-furnace acceleration section is a second detection device, and the preset detection time of the second detection device is less than the preset detection time of the first detection device.

3. The method for treating a furnace blockage of a tempering furnace according to claim 2, characterized in that: The tempering furnace further comprises a cover body and a first lifting device, wherein the cover body covers the top of the furnace-out accelerating section, and the first lifting device is used to adjust the height of the cover body relative to the furnace-out accelerating section; The furnace blockage treatment method comprises: when any of the detection devices cannot detect a signal of the glass within a preset time, the first lifting device lifts the cover body.

4. The method for treating a furnace blockage of a tempering furnace according to claim 2, characterized in that: The conveying device further includes a wind grille cooling section, the wind grille cooling section is located downstream of the furnace acceleration section, the tempering furnace further includes a blowing rack and a second lifting device, the blowing rack is arranged above the wind grille cooling section, the blowing rack is used to blow air to the glass on the wind grille cooling section, and the second lifting device is used to raise the height of the blowing rack relative to the wind grille cooling section; The furnace blockage treatment method comprises: when any of the detection devices cannot detect the signal of the glass, the second lifting device lifts the blowing rack.

5. The method for treating a furnace blockage of a tempering furnace according to claim 1, characterized in that: Glass buckets are provided at both ends of the conveying device, and the glass buckets are used to store the glass discharged from the tempering furnace.

6. The method for treating a furnace blockage of a tempering furnace according to claim 5, characterized in that: The glass bucket is provided with a crushing device, and the crushing device is used to crush the glass discharged into the glass bucket.

7. The method for treating a furnace blockage of a tempering furnace according to claim 1, characterized in that: The conveying device is provided with a heating device, and the heating device is used to heat the glass; The furnace blockage treatment method comprises: when any of the detection devices cannot detect the signal of the glass within a preset detection time, cutting off the power supply of the heating device.

8. The method for treating a furnace blockage of a tempering furnace according to claim 2, characterized in that: The furnace-out acceleration section is a roller conveyor, which includes a plurality of rollers, and the operations of the plurality of rollers are independent of each other; a second detection device is arranged between every two adjacent rollers; The furnace blocking treatment method comprises: when the dividing point is in the furnace exit acceleration section, the roller downstream of the dividing point drives the glass to move along the first direction; The rollers and the heating section upstream of the dividing point drive the glass to move in the second direction.

9. The method for treating a furnace blockage of a tempering furnace according to claim 2, characterized in that: The heating section includes a plurality of conveying sections, the operations of the plurality of conveying sections are independent of each other, and a second detection device is arranged between every two adjacent conveying sections; The furnace blockage treatment method includes: when the dividing point is in the heating section, the conveying section downstream of the dividing point and the furnace-out acceleration section drive the glass to move along the first direction; and the conveying section upstream of the dividing point drives the glass to move along the second direction.

10. A tempering furnace, characterized in that: The tempering furnace comprises a processor and a memory; a computer program is stored in the memory, and the processor is used to execute the computer program to implement the method for treating a blockage of a tempering furnace according to any one of claims 1 to 9.

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