Online cleaning device for lower pressing roll of glass pressing machine

Abstract

The invention discloses an online cleaning device for a lower pressing roll of a glass pressing machine. The online cleaning device is arranged on a pressing frame below the lower pressing roll and structurally comprising a spraying pipe with more than two nozzle groups, each nozzle group comprises a plurality of nozzles, the nozzles of each two adjacent nozzle groups are in staggered array in the direction of the center line of the lower pressing roll, and liquid level of liquid sprayed by each nozzle group is above the vertical plane. The spraying pipe is provided with a liquid inlet, and cleaning liquid with a certain pressure is delivered into the spraying pipe through the liquid inlet and sprayed by the more than two nozzle groups to form more than two rows of liquid levels to clean an operation surface of the lower pressing roll. Compared with the prior art, the online cleaning device has the advantages that one-time integral cleaning can be realized, cleaning effects are enhanced, cleaning operation time is shortened, cleaning efficiency and operational stability are improved, and high applicability is achieved; in addition, the online cleaning device is simple in structure, convenient to mount and demount and convenient for large-scale industrial popularization and promotion.

Description

technical field [0001] The present application relates to the technical field of glass manufacturing, in particular to an on-line cleaning device for the calendering lower roll of a glass calender. Background technique [0002] In the glass calendering process, the glass calender is mainly used to squeeze the molten glass out of the kiln through the upper calender roller and the lower calender roller, then rapidly cool it, and finally form it into a glass panel. Since the upper calender roll and the lower calender roll are made of special materials, when the molten glass flows out between the upper calender roll and the lower calender roll, a layer of oxide will adhere to the surface of the roll, especially for the lower calender roll. If the things on the surface of the rolling lower roller are not cleaned up in time, "gray spots" will be formed on the surface of the roller, which will affect the quality of the glass panel. [0003] In the prior art, in order to prevent t...

AI Technical Summary

Problems solved by technology

The above-mentioned artificial cleaning method has the following defects: First, due to the high temperature of the operating environment under the calender roll, manual cleaning requires the operator to wear cotton clothes and trousers to work in a high temperature environment, and its operation is controllable and stable. It has poor performance, and has high requirements on the operating level of the operating staff, so it cannot be thoroughly cleaned. At the same time, the operation in a high-temperature environment also brings great hidden dangers to the safety of the operating staff; secondly, due to the The narrow space makes it extremely inconvenient for the operators to operate; thirdly, because the production of glass panels is continuous, the manual cleaning method makes the cleaning time long, low in efficiency, and poor in effect, which eventually leads to poor quality of the glass panels and needs to be refurbished. Rework, etc.

In the above technical solution, (1) Since only one set of nozzles is set on the nozzle, when the calendering lower roll is working, the oxides to be cleaned at the same place on its surface can only be cleaned by a set of water surface when it is rotated to align with the nozzles, The oxide to be cleaned at the same place needs to be cleaned again when the lower roller is rolled and rotated to return to this position. This structure makes it possible to miss the first cleaning due to unstable water pressure and have to wait for another rotation. Cleaning can only be carried out after one lap, and this cleaning method at intervals of one lap not only has low cleaning efficiency, but also has no obvious cleaning effect. It needs to prolong the cleaning time, waste water and increase the cleaning cost; (2) due to the cleaning device setting On the side of the glass melting furnace, the narrow space originally located on the side of the glass melting furnace is more limited, and the space utilization rate is lower, and the angle between the nozzle and the nozzle is set, which weakens the sprayed water pressure and makes the cleaning effect better. At the same time, the water surface sprayed from the nozzle will bounce back and splash to the side of the glass melting furnace after reaching the roller surface, making the working environment on this side humid, shortening the service life of the furnace bricks and increasing the cost of maintaining the furnace bricks ; (3) The nozzle adopts an angled round pipe. First, the water outlet of the nozzle is unstable and difficult to control under the action of water pressure. Its spray angle is not only inconvenient to use, but also affects the spray effect. Second, the installation between the round tube and the nozzle is also relatively complicated. If a single round tube is damaged, it is not conducive to the rapid replacement of a single nozzle

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