Vacuum tube vibrating feeder

Abstract

The invention provides a vacuum pipe type vibration feeding machine, which comprises a feeding pipe body and a shock excitation device, wherein the shock excitation device comprises two eccentric vibration motors and a thrust plate, the eccentric vibration motors are fixedly arranged on the thrust plate, the thrust plate is fixedly arranged on the outer wall of the feeding pipe body, the two ends of the feeding pipe body are respectively provided with a feeding opening and a discharging opening which are respectively connected with an outlet of a material cabinet and an inlet of a discharging slide pipe, position limiting mechanisms are arranged at the two sides of the feeding opening, and are fixedly arranged on a connecting support frame, a vibration reduction spring is arranged between the connecting support frame and the feeding pipe body, the vibration reduction spring supports a vibration reduction frame, the vibration reduction frame is fixedly arranged on the feeding pipe body, the feeding pipe body carries out periodic reciprocating vibration under the effect of the eccentric vibration motors, and in the steel liquid vacuum processing period, the upward moving space of the vibration reduction frame is limited through the position limiting mechanisms, so that the feeding machine maintains the balanced state and the normal feeding capability, the distance between a discharging opening of the vacuum hopper and a feeding opening of a vacuum groove system in the horizontal direction can be shortened, and the vacuum pipe type vibration feeding machine has the characteristics that the fault rate is low, and the overhaul and the dismounting are convenient.

Description

technical field [0001] The invention belongs to the technical field of RH vacuum refining, in particular to a vacuum tube type vibrating feeder. Background technique [0002] The vacuum feeding device is one of the key equipment in the RH process, which is used to add alloying elements to the molten steel in the vacuum tank during the vacuum treatment, so as to achieve the purpose of alloying under vacuum. The vacuum hopper is the main equipment in the vacuum feeding device. It is generally designed as a double vacuum lock structure for upper and lower material bells, and is composed of an upper material bin, a lower material bin, a vibrating feeder and a sealed steel structure container. After the upper silo receives the alloy materials delivered by the alloy addition system, close the upper vacuum lock, preset the vacuum, then start the electromagnetic vibrating feeder installed in the sealed steel structure container, open the lower vacuum lock, and the alloy materials wi...

AI Technical Summary

Problems solved by technology

see figure 1 , because the above-mentioned electromagnetic vibrating feeder is installed in a sealed container such as a vacuum hopper, the working space is particularly compact, and the electromagnetic vibrating feeder directly bears the heat escaped from the feeding chute, the working environment temperature is high, the failure rate is high and Maintenance is difficult; when replacing the electromagnet, the manhole door of the vacuum hopper must be opened first, and the feeder must be pulled out. The maintenance space is narrow, time-consuming, and inspection and disassembly are inconvenient.

In the RH process layout of the steelmaking workshop, sometimes there will be a situation where the distance between the inlet of the vacuum tank at the processing position and the outlet of the feeding system is relatively large in the horizontal direction and the height difference is small, so that the feeding port connecting the two The feeding angle of the chute cannot be guaranteed, and there is an urgent need for a specific device that can shorten the horizontal distance between the outlet of the vacuum hopper and the inlet of the vacuum tank system in order to enhance the flexibility of the RH process layout

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