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A rapid bag filter pressure sealing device and method
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A technology of sealing device and filtration pressure, applied in safety devices, earthwork drilling, sealing/packing, etc., can solve the problems of waste, unloading, waste of grouting pipes, etc., to reduce ineffective labor, reduce consumption, Low cost of use
Inactive Publication Date: 2018-09-28
重庆能投渝新能源有限公司
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Abstract
Description
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Problems solved by technology
The device of this method includes filter press bag and grouting pipe, and the most economical is that the grouting pipe adopts flexible pipe, but in the prior art, the grouting pipe cannot be removed from the filter press bag after grouting, resulting in hole sealing The last grouting pipe is wasted
However, for drainage boreholes that need to be sealed over the influence of loose circles or deep coal seams, this waste phenomenon is particularly obvious due to the long distance between the sealing section and the orifice.
Method used
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Embodiment 1
[0026] Example 1, see figure 1 , figure 2 , image 3 , a quick bag-type filter pressure sealing device, including a filter pressure bag 11 arranged on the extraction pipe 13, the filter pressure bag 11 is connected to the grouting pump through a grouting pipe, and the grouting pipe extends into the filter pressure bag 11 A one-way valve 12 is connected to the inner pipe section, and it is characterized in that the grouting pipe is composed of a first pipe section 2 and a second pipe section 3, and the first pipe section 2 and the second pipe section 3 are connected through a pipe unloader; the first The pipe section 2 is connected to the grouting pump, the second pipe section 3 is connected to the pressure filter bag 11, the length of the second pipe section 3 is much smaller than the length of the first pipe section 2; the one-way valve 12 is connected to the second pipe section 3, And the second pipe section 3 forms an elastic quick-plug type connection with the pipe unload...
Embodiment 2
[0032] Example 2, see Figure 5 , the inlet end of the tubular main body 1 is composed of a hoop-type hose joint, the outer wall of the hose joint is corrugated, the hose joint of the tubular main body 1 is inserted into the pipe hole of the first pipe section 2, and passed through the hoop 8 fixed. Wherein, the hoop 8 is separated from the tubular main body 1; the hose-type elastic quick-plug connector only has a hose-type elastic quick-plug interface at the outlet end.
[0033] The rest of the structure of this embodiment is the same as that of Embodiment 1, and will not be repeated here.
Embodiment 3
[0034] Example 3, see Figure 1~5 , a rapid filter pressure bag sealing method, including the steps of setting a sealing device and pressure grouting in the drainage borehole, the method is implemented by using the sealing device described in Embodiment 1 or 2 of the present invention, and injecting After the slurry is completed and before the slurry is solidified, the drag cable 4 is pulled to separate the pipe unloader from the second pipe section 3 .
[0035] Among them, before installing the hole sealing device, it also includes connecting the first pipe section 2 and the second pipe section 3 through the pipe unloader, and after the first pipe section 2 is plugged into the corresponding interface of the elastic quick-plug joint of the pipe unloader, the A circlip 10 is arranged between the button 9 of the interface part and the joint body 5 to prevent axial displacement of the button 9 when it is pressed.
[0036] In the grouting pipe connection process of this method, t...
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Abstract
The invention discloses a rapid bag type filter-pressing hole sealing device and method. The device comprises a filter pressing bag and a grouting pipe, wherein a one-way valve is connected to a pipe section, extending into the filter pressing bag, of the grouting pipe; the grouting pipe comprises a first pipe section and a second pipe section; the first pipe section communicates with the second pipe section through a pipe dismounting device; the first pipe section and the second pipe section are connected to the filter pressing bag and a grouting pump respectively; the one-way valve is connected to the second pipe section, and the second pipe section is connected with the pipe dismounting device through an elastic rapid inserting port in the pipe dismounting device, a pull cable is arranged on the pipe dismounting pipe, so that after the second pipe section is fixed, a button of the pipe dismounting device is pulled through the pull cable to move backwards, and the second pipe section and the pipe dismounting device are separated. The method is implemented with the device, and the pipe dismounting device and the second pipe section are separated by pulling the pull rope after grouting and before slurry solidification. The rapid bag type filter-pressing hole sealing device and method have the benefits that the grouting pipe of the hole sealing device can be recycled, and the hole sealing device is simple in structure and convenient to manufacture; the hole sealing method is simple to operate and low in hole sealing and extraction cost.
Description
technical field [0001] The invention relates to a coal seam gas extraction technology, in particular to a rapid bag-type filter pressure sealing device and method. Background technique [0002] Coal seam gas is a kind of clean energy, but it is also a source of disaster for coal mine production. Therefore, gas drainage must be carried out before the mining of gas-containing coal seams. Due to the complex geological conditions of coal occurrence in my country, the degree of softness of coal seams, and the depth of burial, etc., currently it mainly relies on underground mining. The gas drainage of the existing coal mining face is carried out by drilling along the bedding in the coal seam in the transportation roadway and the air return roadway respectively. For the coal seam with poor air permeability, it is usually necessary to carry out hydraulic fracturing to increase the gas permeability. line sampling. Coal seam gas drainage is carried out by the gas drainage system thr...
Claims
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Application Information
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