US-12623944-B2 - Rotary firing device, furnace and rotary firing method thereof

US12623944B2US 12623944 B2US12623944 B2US 12623944B2US-12623944-B2

Abstract

The present disclosure provides a rotary firing device, furnace and rotary firing method thereof. The rotary firing device is arranged on the roof of the furnace and includes an installation base, an adjusting arm and a tubular burner. The installation base and the adjusting arm are fixed on the roof of the furnace, the middle portion of the tubular burner is rotationally connected to the installation base, and the output end of the tubular burner is located inside the furnace. The output end of the adjusting arm is connected to the middle portion of the tubular burner.

Inventors

Guorong Cao
Peijun SHEN
Haijun Wang
Changying FANG
Ligen QIAN

Assignees

JUSHI GROUP CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20210712
Priority Date: 20210705

Claims (9)

1 . A rotary firing device, being arranged on a roof of a furnace and comprising an installation base, an adjusting arm and a tubular burner, wherein the tubular burner comprises a straight pipe and a bent pipe, and the bent pipe is connected to an upper portion of the straight pipe; the installation base and the adjusting arm are fixed on the roof of the furnace, a middle portion of the straight pipe is rotationally connected to the installation base, an output end of the straight pipe is located inside the furnace, and an output end of the adjusting arm is connected to the middle portion of the straight pipe; wherein the adjusting arm is configured to drive the tubular burner to sway in an angle range from 0 to 45° relative to a vertical direction through telescopically driving the tubular burner by a cylinder push rod of a cylinder driver or by a hydraulic rod of a hydraulic drive motor; and a movement trajectory of the tubular burner forms a sector on a vertical plane.
2 . The rotary firing device according to claim 1 , further comprising a joint bearing, wherein the joint bearing is embedded in the installation base, and the middle portion of the straight pipe is connected to the installation base through the joint bearing.
3 . The rotary firing device according to claim 1 , wherein the adjusting arm is a multi-joint 6 DOF robotic arm.
4 . A furnace comprising a crown, a wall and at least one set of at least one of the rotary firing devices according to claim 1 , wherein an edge of the crown is fixed to a top of the wall, the each of the at least one of the rotary firing devices is arranged on the crown, and the output end of the straight pipe is located below the crown.
5 . The furnace according to claim 4 , further comprising an industrial imaging system for capturing real-time image data inside the furnace.
6 . The furnace according to claim 5 , wherein the industrial imaging system comprises an industrial imaging device, an image transmission device, and an industrial computer, the industrial imaging device is set on the crown or on the wall, an image acquisition end of the industrial imaging device is arranged to face at least one of a glass level or the wall inside the furnace, and an output end of the industrial imaging device is electrically connected to the image transmission device, and an output end of the image transmission device is signally connected to the industrial computer.
7 . The furnace according to claim 6 , wherein the industrial imaging device is a high-temperature resistant industrial camera or a thermal imager.
8 . The furnace according to claim 6 , wherein an output end of the industrial computer is signally connected to the adjusting arm.
9 . The furnace according to claim 6 , wherein the industrial computer comprises an image processing module, a storage module, an image comparison module, a drive module and a display module, an input end of the image processing module is signally connected to the output end of the image transmission device, an output end of the image processing module is signally connected to the storage module and the image comparison module, and an output end of the image comparison module is signally connected to the drive module and the display module.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present disclosure is a national stage entry under 35 U.S.C. § 371 of International Application No. PCT/CN2021/105692, filed on Jul. 12, 2021, which claims priority to Chinese Patent Application No. 202110757321.6, filed on Jul. 5, 2021 and entitled “Rotary Firing Device, Furnace and Rotary Firing Method Thereof”. International Application No. PCT/CN2021/105692 and Chinese Patent Application No. 202110757321.6 are incorporated herein by reference in their entireties. TECHNICAL FIELD The present disclosure relates to but is not limited to a rotary firing device, furnace and rotary firing method thereof. BACKGROUND In the process of melting the glass, the oxy-fuel roof firing technology is steadily used on larger scales, as it offers complete combustion and high- temperature flame, bringing many advantages such as significantly reduced NOx emissions, stable process, energy consumption saving, product quality improvement, and overall benefit increase. Practice shows that the structural arrangement of the firing device plays a key role in oxy-fuel roof firing technology. A rational arrangement of the firing device would be a guarantee for effective flame coverage over the glass level, thus improving the melting quality of glass, stabilizing the glass batch line, and reducing the occurrence of phenomenon of batch material escaping from being fired. Glass fiber manufacturers attach importance to the arrangement and design of oxy-fuel firing devices. In the prior art, a plurality of firing devices are arranged on the crown of a furnace. The efficiency and quality of glass meting are improved thanks to the many firing devices installed. However, as the firing devices are fixed on the crown, a phenomenon of batch material escaping from being fired and an unstable glass batch line would easily occur, as shown in FIG. 1, when the feed of glass batch or the flow of molten glass is increased. In that case, some of the batch would flow with the molten glass inside the furnace at the upper part of the glass liquid that corresponds to regions between adjacent firing devices, thereby forming “strips” of unmelted batch as designated by A in FIG. 1 and causing incomplete melting of the batch. Restricted by the furnace structure and process arrangement, it is difficult to solve the above problems by adding more firing devices. And if the flow of the firing device is increased to enforce the melting, the problem of “strips” of unmelted batch as mentioned above would still not be solved effectively, for the effective flame coverage has not been increased. Further, an increased flow of firing device would impinge on the batch and the glass level and thus cause a phenomenon of flying powders of the batch. Still, the temperature of certain locations in the high-temperature melting zone would increase, which leads to drastic change of temperature in some locations inside the furnace, causing thermal shock and affecting the furnace structure. SUMMARY The following is a summary of the subject matter described in detail in the present disclosure. The summary is not intended to limit the protection scope of claims of this disclosure. The present disclosure provides a rotary firing device, furnace and rotary firing method thereof, which can increase the flame coverage. According to a first aspect of the present disclosure relates to a rotary firing device. The rotary firing device is arranged on a roof of a furnace and includes an installation base, an adjusting arm and a tubular burner. Wherein, the installation base and the adjusting arm are fixed on the roof of the furnace, a middle portion of the tubular burner is rotationally connected to the installation base, and an output end of the tubular burner is located inside the furnace; and wherein an output end of the adjusting arm is connected to the middle portion of the tubular burner. According to some embodiments of the present disclosure, the rotary firing device further includes a joint bearing embedded in the installation base. The middle portion of the tubular burner is connected to the installation base through the joint bearing. According to some embodiments of the present disclosure, the adjusting arm drives the tubular burner to rotate or sway within a preset angle range. According to some embodiments of the present disclosure, the preset angle range is a range having an upper limit central angle of 90°. According to some embodiments of the present disclosure, the adjusting arm is a multi-joint 6 DOF robotic arm. According to a second aspect of the present disclosure relates to a furnace which includes a crown, a wall and at least one set of the rotary firing device described above. An edge of the crown is fixed to a top of the wall. The rotary firing device is arranged on the crown, and an output end of the tubular burner is located below the crown. According to some embodiments of the present disclosure, the furnace further inclu