Soil warehouse pressure control system

A technology of soil bunker pressure and control system, which is applied in earth-moving drilling, mining equipment, tunnels, etc., can solve problems such as unstable soil bunker pressure control, and achieve good adjustability and anti-clogging effects.

Inactive Publication Date: 2019-11-22
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a soil bunker pressure control system, which solves the problem of unstable pressure control of the existing soil bunker

Method used

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  • Soil warehouse pressure control system

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] Such as figure 1 As shown, a soil bunker pressure control system includes a soil bunker, and the soil bunker communicates with a pressure relief pipe 10. The pressure relief pipe 10 is provided with a manual ball valve 2 and a pressure relief valve. The manual ball valve 2 is located at the front end of the pressure relief valve. Manually control the pressure relief of the soil bin. The pressure relief valve is the pinch valve 4, the pressure transmitt...

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Abstract

The invention provides a soil warehouse pressure control system. The system comprises a soil warehouse communicating with a pressure maintaining assembly. The soil warehouse communicates with a pressure release pipe. The pressure release pipe communicates with a transfer device. A pressure release valve is arranged on the pressure release pipe. The pressure release valve is controlled by a pressure transmitter I which detects pressure in the soil warehouse. The soil warehouse pressure control system has the advantages that the pressure regulating system capable of being used for performing closed-loop regulation on the soil warehouse pressure is disclosed, an automatic control gas exhaust, water draining and slag discharging system is additionally arranged on the basis of an original pressure maintaining gas inlet system, the two systems are matched for closed-loop control, a deviation value of the soil warehouse pressure is timely regulated, and the tunnel face and formation stabilityis guaranteed; the additionally arranged automatic gas exhaust, water draining and slag discharging control system adopts a high-precision sensor and a proportional control valve for regulating the starting pressure of a pinch valve; and in addition, the adjustability of the starting pressure of the pinch valve is good, large particles can pass by easily, the clogging resistance is good, and thesystem is quite suitable for pressure regulation of a soil pressure balance shield.

Description

technical field [0001] The invention relates to the pressure regulation technology of the excavation cavity of a closed shield machine, in particular to a pressure control system of an earth bin. Background technique [0002] The earth pressure balance shield machine is suitable for clay, sandy soil, and composite strata with uneven hardness and softness. It has the characteristics of high excavation efficiency and low construction cost. As we all know, during the working process of the earth pressure balance shield machine, the soil pressure and water pressure on the side of the face are balanced by pressurizing the soil bin, so as to maintain the stability of the face and the formation. For example, an invention patent titled "Construction Technology of Mud Membrane on Face of Face for Shield Compression Operation (Application No.: 2013107537376)" discloses a method for maintaining pressure of earth pressure shield machine. [0003] Due to the special working conditions o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06
CPCE21D9/003E21D9/0642
Inventor 郭付军冯超强周小磊胡燕伟韩博赵云辉赵康峰姚晶朱团辉廖兆锦
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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