Taking-out device of long monocrystalline silicon rods

Abstract

The invention discloses a taking-out device of long monocrystalline silicon rods. The taking-out device is used for a silicon single crystal furnace, and comprises an electric pushing rod, an electric pushing rod connection block, a jacking shaft, a furnace cover lifting shaft, a furnace cover lifting connection piece, an auxiliary chamber lifting shaft and an auxiliary chamber lifting connection piece which are sequentially arranged from bottom to top, wherein the jacking shaft penetrates through the furnace cover lifting shaft, two ends of the jacking shaft respectively extend out of the end parts of the furnace cover lifting shaft, the jacking shaft can move upwards and downwards in the furnace cover lifting shaft, the upper end of the jacking shaft is connected with the lower end of the auxiliary chamber lifting shaft, the lower end of the jacking shaft is connected with the electric pushing rod connection block, and a detachable stopping component is arranged on the jacking shaft between the bottom of the furnace cover lifting shaft and the electric pushing rod connection block. The taking-out device can take out the long monocrystalline silicon rods in a stable, safe, convenient and reliable mode, and simultaneously can be rapidly and conveniently switched to meet taking-out requirements of monocrystalline silicon rods with different lengths.

Description

technical field [0001] The invention relates to the field of production of long single crystal silicon rods in the semiconductor industry, in particular to a device for taking out long single crystal silicon rods. Background technique [0002] With the use of secondary feeding equipment and processes for silicon single crystal furnaces, the length of silicon single crystal rods that can be produced by silicon single crystal furnaces has been significantly increased. At the same time, the large-size monocrystalline silicon ingot production furnace can produce longer monocrystalline silicon ingots at one time because of its large feed capacity. For example, the single crystal silicon rod production furnace with a diameter of 8 inches can feed 120Kg at a time, and the length of the single crystal silicon rod can be significantly increased when the same feed amount is used to produce a single crystal silicon rod with a diameter of 6 inches. In order to adapt to the production r...

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Problems solved by technology

Although the prior art adopts the structure of adding a vertical plate 208 on the flap valve 103, to a certain extent, the synchronous rotation of the auxiliary chamber 104 and the furnace cover 102 can be realized and the safety of operation can be improved, but the auxiliary chamber 104 and the furnace cover cannot be realized. The reliable synchronous rotation of 102 is easy to cause shaking between the auxiliary chamber 104, the flap valve 103, and the furnace cover 102, and each operation needs to install or remove the vertical plate 208 according to the length of the monocrystalline silicon rod to be produced, which is time-consuming and labor-intensive. At the same time, in order to ensure the accurate cooperation between the auxiliary chamber and the flap valve when the furnace is combined, the vertical plate 208 needs to be removed every time. The installation and removal of the vertical plate 208 has a certain height, which is inconvenient to operate

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