Mud gun rotation hydraulic control system

By designing a hydraulic control system for rotating mud guns, configuring pressure-holding pipelines and hydraulically controlled check valves, and monitoring and replenishing hydraulic oil in real time, the problem of excessively rapid pressure drop in the rodless chamber of the rotating mud gun hydraulic cylinder was solved, improving the reliability and safety of operation.

CN224283060UActive Publication Date: 2026-05-26WISDRI ENG & RES INC LTD
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Patent Information

Application Number
CN202520714100.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-05-26
Estimated Expiration
2035-04-15

AI Technical Summary

Technical Problem

During the blast furnace ironmaking process, a rapid drop in pressure in the rodless chamber of the mud gun rotating hydraulic cylinder may lead to dangerous situations such as mud spillage and molten iron overflow, which are difficult to effectively solve with existing technologies.

Method used

A rotary hydraulic control system for mud guns was designed, including a rotary hydraulic cylinder and a rotary hydraulic circuit. It is equipped with a first pressure-holding pipeline and a hydraulically controlled check valve. The hydraulic oil is monitored and replenished in real time through a pressure-holding control module and a pressure measuring unit to ensure the stability of the pressure in the rodless chamber.

Benefits of technology

It improves the reliability and safety of mud gun operation, prevents mud spillage and molten iron leakage, and ensures the stability and reliability of the mud-making process.

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Abstract

The utility model relates to a rotary hydraulic control system for a clay gun. A rotary hydraulic loop of the rotary hydraulic control system comprises a rotary control reversing valve, a first rotary hydraulic pipeline connected with a rodless cavity of a rotary hydraulic cylinder, and a second rotary hydraulic pipeline connected with a rod cavity of the rotary hydraulic cylinder, a pressure port of the rotary control reversing valve is connected with a first pressure oil branch pipe; the mud gun rotating hydraulic control system further comprises a pressure maintaining pipeline, the first end of the pressure maintaining pipeline is connected to the first pressure oil branch pipe in a bypass mode, the second end of the pressure maintaining pipeline is connected to the first rotating hydraulic pipeline in a bypass mode, and a hydraulic control one-way valve and a pressure maintaining control module used for controlling on-off of the hydraulic control one-way valve are arranged on the pressure maintaining pipeline. According to the mud gun, the first pressure maintaining pipeline is arranged, once the conditions that the pressure of the rodless cavity of the rotary hydraulic cylinder drops too fast and the like occur, the main valve element of the first hydraulic control one-way valve is controlled to be opened, hydraulic oil can be supplemented to the first rotary hydraulic pipeline, the pressure stability of the rodless cavity of the rotary hydraulic cylinder is improved, and the working reliability of the mud gun is guaranteed.
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