Coal powder filtration and collection device for coalbed methane exploitation
A collection device and coalbed methane technology, applied in the direction of mining fluid, dispersed particle filtration, earthwork drilling, etc., can solve problems that affect coalbed methane mining efficiency and mining performance, coal powder deposition, pump stuck, etc., to ensure the passing performance, Good cleansing, strengthening effect
Active Publication Date: 2021-12-21
山东巨创燃气设备有限公司
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Problems solved by technology
In the process of mining coalbed methane, coal powder needs to be collected and processed, otherwise it is easy to cause coal powder to deposit in the seepage channel and cause blockage. Pulverized coal can dredge the seepage channel, and it is also prone to phenomena such as pump jamming, which affects the mining efficiency and performance of coalbed methane
Method used
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Embodiment Construction
[0023] see Figure 1~3 , in an embodiment of the present invention, a coal dust filtration and collection device for coalbed methane mining includes an outer cylinder seat 1, a sealing end cover 2, a filter bag 3 and a waterproof oscillator 9, wherein the outer cylinder seat One end of 1 is detachably provided with the sealing end cap 2, and the filter bag 3 is also arranged in the outer cylinder seat 1, the air inlet end is in the lower end of the filter bag 3, and the air inlet end is connected with the air inlet pipe 13, the air inlet pipe 13 protrudes from the lower end of the outer cylinder seat 1, and the upper end of the outer cylinder seat 1 is provided with at least one air outlet pipe 6 extending into its interior, and the air outlet pipe 6 is connected to the outer cylinder seat 1. The cavity constructed between the inner wall of the outer cylinder seat 1 and the outer wall of the filter bag communicates;
[0024] The inside of the filter bag 3 is also provided wit...
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The invention discloses a coal powder filtering and collecting device for mining coalbed methane. The method of the filter bag in the invention realizes the filtering and collection of coal powder in coalbed methane, and prevents the coal powder on the filter bag from being damaged during the collection process. Air-permeable filter blockage, through the installation of oscillation components, can ensure the filtering effect and passing performance of coalbed methane, ensure that coalbed methane passes through the filter bag smoothly, and prevent coal powder from clogging coalbed gas; the oscillation amplitude of the oscillation component can be adjusted, so that it can be adjusted according to the The fine powder adjusts the vibration amplitude of the smoothness of the coalbed gas passing through the filter bag, improves the filtering effect of the coal powder, and prevents excessive vibration from causing the coal powder on the filter bag to disperse into the coalbed gas, so that the strength of the filter is increased. The present invention can clean the filter bag very well, and the cleaning liquid is used for cleaning, which is simple and convenient; the vibration of the present invention adopts the electromagnetic mode, and the structure is simple, which can adapt to the harsh environment with more dust in the pulverized coal of coalbed methane .
Description
technical field [0001] The invention relates to the technical field of coal bed gas mining, in particular to a coal powder filtering and collecting device for coal bed gas mining. Background technique [0002] During the mining process of coalbed methane, coal powder will be produced, and for coal powder, its production mechanism is that the geological characteristics of the coal seam determine that coal powder will be produced during engineering disturbance and other processes. Coal seam geological characteristics (such as coal rock composition, inorganic mineral composition, degree of metamorphism, coal body structure, etc.) Inducing factors for powder production. In the drainage and depressurization process of coalbed methane development, the drainage system is unreasonable, the drainage intensity is high, the gas production growth rate is fast, and the bottom hole pressure fluctuation will also affect the production of coal powder. In the process of mining coalbed meth...
Claims
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IPC IPC(8): B01D46/02B01D46/04B01D46/44B01D46/00E21B43/34
CPCB01D46/02B01D46/04B01D46/446B01D46/0039E21B43/34B01D46/70B01D46/76
Inventor 郑志材黄超凡
Owner 山东巨创燃气设备有限公司