Full intelligent skull hitting system for aluminum electrolysis cell

Abstract

The invention relates to a full intelligent skull hitting system for an aluminum electrolysis cell. The full intelligent skull hitting system comprises the electrolysis cell, a cell control machine, skull hitting cylinders and a control unit; each skull hitting cylinder comprises a cylinder connection rod, a skull hitting hammer head, an electromagnetic directional valve and a pressure sensor, andthe skull hitting cylinder is provided with a displacement sensor capable of detecting the motion journey of the skull hitting cylinder; the system further provided with a skull monitoring device anda liquid level monitoring device; and the displacement sensor, the skull monitoring device and the liquid level monitoring device are connected with the control unit. Through the full intelligent skull hitting system, the problems can be well solved, accordingly, the manpower cost is reduced for an enterprise, and the service lives of the skull hitting cylinders and accessories thereof are prolonged by at least 6 times; non-contact sensors are adopted, and the hammer head is not soaked into an electrolyte, so that the aluminum liquid quality is substantially improved; and energy saving, costreducing and economic benefit effects are remarkable, and the full intelligent skull hitting system is environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of aluminum electrolysis, and in particular relates to a fully intelligent shelling system for an aluminum electrolytic cell. Background technique [0002] The aluminum electrolysis industry uses large prebaked tanks for electrolytic production. The raw material alumina powder is discharged in an orderly manner in the middle of the prebaked tank by the tank control machine. The bottom of the electrolytic tank), that is, punch a hole (commonly known as the fire eye) on the upper cover of the prebaking tank for feeding, and start feeding after opening. The alumina powder is continuously added by the feeder, and the electrolyte liquid surface is easy to form a crust, or the hammer head is frequently sticky due to the influence of high temperature, and the sticking is too large to block the feeding hole. In order to ensure the continuous and stable production of their electrolytic aluminum, most enterprises ado...

AI Technical Summary

Problems solved by technology

[0003] First of all, due to the inability to adjust the penetration depth of the hammer head into the electrolyte, the hammer head is always in a high temperature state, which leads to the rapid aging of the alloy hammer head, and the longest service life is about 3 months, which in turn affects the purity and quality of the aluminum liquid

Although some companies use the three-position five-way valve to improve the cylinder stroke, but the problem is unstable or the technology is immature, so the problem has not been completely solved

[0004] Secondly, the high temperature of the hammer head leads to a high sticking rate, which greatly increases the probability and labor intensity of manual shelling. The workshop is equipped with a large number of shelling and inspection personnel, which affects production efficiency and increases the safety production burden of the enterprise.

Due to the limitation of high temperature and existing technological process, the shelling cylinder has become a consumable, and the damage rate of the cylinder is high. Many cylinder manufacturers arrange special personnel (or establish after-sales service agencies in the customer's locality) to be responsible for equipment maintenance and repair all the year round.

[0005] In recent years, related enterprises have developed automated cylinders and tried them out in enterprises. However, due to the influence of the production process on their detection principles, their products cannot be produced stably and continuously. They barely belong to the level of automation. They have not reached the level of intelligent identification and application, and have not played their due role in automation equipment The level and economic benefits, intelligence is out of the question

[0006] Therefore, in the current existing technology, both parties need to invest a lot of resource costs such as manpower, equipment, and financial resources to maintain the normal production of the workshop.

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