Preparation method, device and system of a quartz ingot
A quartz ingot and quartz technology, applied in glass manufacturing equipment, manufacturing tools, glass molding, etc., can solve the problems of high material yield, uneven size of quartz ingot, low material yield, etc., to achieve improved raw material loss, simple structure, The effect of improving material yield
Active Publication Date: 2020-04-14
YANGTZE OPTICAL FIBRE & CABLE CO LTD
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[0007] In view of the above defects or improvement needs of the prior art, the present invention provides a preparation method, device and system for quartz ingots, the purpose of which is to compensate gravity through material control, and to use the existing quartz ingot preparation device to prepare uniform size Quartz ingots with high material yield, thus solving the technical problems of uneven size or low yield of quartz ingots prepared by the quartz ingot preparation method
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[0041] The preparation method of the quartz ingot provided by the present invention adopts the gas refining method to deposit the quartz ingot and controls the feeding rate according to the following steps:
[0042] When the height of the deposited quartz ingot is lower than the critical height of the cross-sectional size change, according to the principle that the smaller the height, the lower the feeding speed, the deformation caused by the deviation of the cross-sectional size of the quartz ingot caused by the self-weight is compensated, and the feeding rate is controlled;
[0043] When the height of the deposited quartz ingot is higher than the critical height of the cross-sectional dimension change, the feeding rate is controlled according to the compensation amount of the critical height of the cross-sectional dimension change.
[0044] V 1 =[1+k(r,h)]V 2 r 2 ρ
[0045] where: V 1 is the feeding rate, that is, the amount of raw materials put in per unit time; V 2 r ...
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Abstract
The invention discloses a preparation method, device and system for quartz ingots. According to the method, quartz particles are used for depositing the quartz ingots in a fusion way; the blanking speed is controlled according to the following steps that: when the deposited quartz ingot height is smaller than the critical height of the cross section dimension change, the deformation caused by quartz ingot cross section dimension deviation caused by self weight is compensated according to the principle that the blanking speed is lower when the height is smaller; the blanking speed is controlled; when the deposited quartz ingot height is higher than the cross section dimension change critical height, the blanking speed is controlled according to the compensation quantity of the cross section dimension change critical height. The device comprises a rotary platform ascending and descending motor, a quartz raw material feeding quantity controller and a host computer. The system comprises a correction coefficient obtaining module, a blanking speed control module, a quartz ingot height detection module and a quartz ingot lower section cross section dimension detection module. The quartz ingots with the uniform dimension are obtained on the premise of not increasing deposition devices, not improving the raw material loss, and reducing the processing work procedures.
Description
technical field [0001] The invention belongs to the field of quartz material preparation, and more specifically relates to a method, device and system for preparing a quartz ingot. Background technique [0002] The quartz material used in the optical fiber preform has strict requirements on its appearance uniformity, bubble content, and impurity content. At present, the appearance uniformity of the quartz material prepared from high-purity quartz sand needs to be passed through subsequent multi-channel Process processing can meet the requirements. [0003] Gas smelting method is currently the main method for preparing quartz body materials using natural quartz sand as raw material. This method is to melt quartz sand under an oxygen-hydrogen flame to form quartz ingots with larger diameters. The obtained quartz ingots have different heights. The cross-sectional size deviation is large, which cannot meet the requirements of direct stretching. In order to solve the above prob...
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IPC IPC(8): C03B20/00C03B37/012
CPCC03B20/00C03B37/012
Inventor 郭飞张金银谭路熊良明罗杰杭常东
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD