A device and method for cleaning shield tail seal chamber of shield machine
A shield tail sealing and shield machine technology, which is used in earth-moving drilling, mining equipment, tunnels, etc., can solve problems such as difficult realization and inconvenient disassembly, and achieve the effects of improving viscosity, good sealing effect and simple operation.
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Embodiment 1
[0033] Such as figure 1 Figure 4 As shown, the embodiment of the present invention provides a device for cleaning the sealed chamber of the shield tail of the shield machine, including a refrigeration device, a connecting pipe 3 and a heat exchange device 4 connected in sequence. The refrigeration device is arranged in the tail of the shield machine 1, and the The thermal device 4 is arranged between adjacent shield tail brushes 2 . The refrigerating device feeds refrigerated liquid into the connecting pipe 3 and the heat exchange device 4, and the refrigerated liquid is liquid nitrogen. The heat exchange device 4 is hollow, can pass through fluid, and is provided with an outlet.
[0034] When the shield machine is working, the segment 7 is laid at the tail 1 of the shield machine, and the segment 7 and the tunnel inner wall 6 form a grouting layer 8 through grouting, and the slurry can be directly injected into the grouting hole 9 of the segment 7 . The shield tail brush ...
Embodiment 2
[0042] Such as figure 2 As shown, in this embodiment, a heating device is also included, and the heating device can feed a heating fluid into the connecting pipe 3 and the heat exchange device 4, and the heating fluid is heat-conducting oil or water. The freezing device and the heating device are connected with the connecting pipe 3 through a switching valve.
[0043] A method of cleaning the shield tail seal chamber of the shield machine in the present embodiment comprises the following steps:
[0044] a. Stop the operation of the shield machine;
[0045] b. Turn on the freezing device, and freeze the grease and grouting materials between the shield tail brushes 2 to a solid state;
[0046] c. Stop the refrigeration unit;
[0047] d. Turn on the heating device to heat between the shield tail brushes, and at the same time extract the flowing grease from the grouting holes of the segments;
[0048] e. Remove the segment 7 below the shield tail brush 2;
[0049] f. Clean u...
Embodiment 3
[0052] Such as image 3 As shown, in this embodiment, a blower is also included, and the blower is connected to the switching valve, and the blower can pass air at normal temperature into the connecting pipe 3 and the heat exchange device 4 .
[0053] A method of cleaning the shield tail seal chamber of the shield machine in the present embodiment comprises the following steps:
[0054] a. Stop the operation of the shield machine;
[0055] b. Turn on the freezing device, and freeze the grease and grouting materials between the shield tail brushes 2 to a solid state;
[0056] c. Stop the refrigeration unit;
[0057] d. Use a blower to increase the temperature of the connecting pipe 3 and the heat exchange device, turn on the heating device to heat between the shield tail brushes, and at the same time extract the flowing grease from the grouting holes of the segments;
[0058] e. Remove the segment 7 below the shield tail brush 2;
[0059] f. Clean up the grouting material r...
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