Automatic slag feeding machine for continuous casting crystallizer

Abstract

The invention relates to an automatic slag feeding machine for a continuous casting crystallizer. In the technical scheme, the automatic slag feeding machine comprises a lifting frame, a slag feeding system and a control system, wherein in the slag feeding system, a third motor (4) drives corresponding first and second material delivery pipes (13 and 36) to swing in a horizontal plane by two output shafts of a third speed reducer (6); a first motor and a second motor (11 and 29) drive corresponding first and second material delivery spiral rods (42 and 31) to rotate, so that granular materials are outputted by first and second adjustable discharging devices (14 and 38); the first and second adjustable discharging devices (14 and 38) have the same structure; an integral ring (54), a notch ring (52), an integral ring (52) and a right flange (51) are tightly close to a left flange sequentially from left to right; a fifth motor (23) drives a gear (21) to rotate by a fifth speed reducer (22); and the gear (21) is in meshed transmission with a rack (20), so that a slag feeding system makes reciprocating linear motion. The automatic slag feeding machine has the characteristics of compactstructure, high automaticity and wide application range, and can feed slag uniformly and is easy to operate.

Description

technical field [0001] The invention belongs to the technical field of automatic slag adding machines. Specifically relates to an automatic slag adding machine for continuous casting crystallizer. Background technique [0002] Mold mold flux is generally used in continuous steel casting, usually with 4-20% pure fluorine in the mold mold flux, and the slag consumption is about 2.5kg / t steel. In the production process, because workers are in an environment with high fluorine concentration, it is not only harmful to health, but also the randomness of artificial slag addition is large, the slag layer is uneven, and it is easy to cause problems such as slag rolling and affect the surface and internal quality of the slab. Therefore, the technology of automatic casting mold slag addition has attracted great attention of technicians. [0003] In recent years, foreign countries have developed different types of mold powder automatic slag adding machines, the main disadvantages of w...

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Problems solved by technology

[0003]In recent years, foreign countries have developed different types of mold slag automatic slag adding machines, the main disadvantages of which are: long conveying pipeline, easy wear of elbows and pipelines, Mold slag blocks the pipeline and the crushing rate of the mold slag is high; the patent technology of "Slab Continuous Casting Mold Mold Slag Automatic Addition Device" (CN 202549392A) has been disclosed in China. It is suitable for occasions where the installation space is small and multiple crystallizers are arranged side by side; there is also a patented technology of "automatic slag adding device for large cross-section mold" (publication number CN202247962A), the slag bucket of this device moves in the width direction of the slag adding machine , which increases the width of the slag feeder, and the mold slag falls freely at the outlet of the slag feeder pipe, which is prone to uneven phenomena. This kind of slag feeder cannot be changed in the height direction, so it is not suitable for crystallizers of different heights; "A double-pipe automatic slag adding machine" (application number 201110032085.5) patented technology, the device realizes position compensation through the cam disc, and it is easy to get stuck after the cam disc works for a long time; the discharge port of the device can realize width adjustment, But the inclination angle cannot be adjusted according to the feeding speed, and the uniformity of material spreading is related to the feeding speed and the inclination angle of the discharge port; at the same time, because the powder material is easy to be damp, the device has no heating device, and it also lacks the stirring of the material during the slag addition process. device

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