CN102410002A - Vertical shaft chain bucket coal-water drainage and gas recovery method - Google Patents
Vertical shaft chain bucket coal-water drainage and gas recovery method Download PDFInfo
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- CN102410002A CN102410002A CN2011104501886A CN201110450188A CN102410002A CN 102410002 A CN102410002 A CN 102410002A CN 2011104501886 A CN2011104501886 A CN 2011104501886A CN 201110450188 A CN201110450188 A CN 201110450188A CN 102410002 A CN102410002 A CN 102410002A
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Abstract
The invention discloses a vertical shaft chain bucket coal-water drainage and gas recovery method, and a coal-water drainage and gas outlet well (1) is arranged and communicated with a hydraulic transportation channel (4); a driven wheel (6) with a counterweight block (5) is placed at the well bottom of the coal-water drainage and gas outlet well (1), a steering device comprising a driving wheel (7), a steering wheel A (8) and a steering wheel B (9) is placed at a well mouth, all the wheels are connected through two transmission chains (10), and a skip (11) is fixed between the double chains; a sealed room (12) is arranged, a coal-water drainage port (13) is formed at the bottom on one side of the sealed room (12), the sealed room (12) is further provided with an inner pool (14) and an outer pool (15), and a gas outlet port (16) is formed at the upper part on the other side and connected with a gas collecting box (17); the skip (11) is used for excavating coal and water mixture at the well bottom of the coal-water drainage and gas outlet well (1), draining to the inner pool (14) and leading into the outer pool (15); and coal bed gas is collected, the coal and water separation is simultaneously performed and the separated water is recycled. A chain bucket is adopted for discharging coal and draining the water, thereby realizing continuous and stable production.
Description
Technical field
The present invention relates to the coal-bed gas exploitation technical field, also can relate to and carry out coal and coal bed gas on ground and adopt technical field altogether, especially to jetting coal-bed gas exploitation technical field.
Background technology
About 36,000,000,000,000 m of the coal bed gas resource amount of China
3, the contained coal bed gas resource amount of wherein soft, hypotonic, high bottle coal reservoir accounts for about 50% of national total amount.The reasonable development coal bed gas can not only provide high-grade energy for development and national economy, and to preserving the ecological environment, solve the safety problem of coal mining, all has crucial meaning.The production of coal bed gas is to realize that through the drainage and step-down to the coal petrography reservoir especially waterpower melts mining coal seam gas, and it is even more important that Pai Meishui seems.At present, in the irrigation recovery process, how to arrange the key factor that the coal draining has become the restriction coal-bed gas exploitation fast and effectively.The water pumping gas production equipment that current China uses mainly contains: sucker rod pump, screw pump, electric submersible pump etc., displacement variation scope big coal bed gas well big for some displacement; Sucker rod pump, screw pump row adopt equipment and can be restricted; And the coal bed gas well array is adopted a large amount of fine breeze and the gas liquid mixtures of generation in the process; Often cause sucker rod pump holddown, serious wear, cost of investment and engineering operation expense are higher; Electric submersible pump row adopts the equipment motor and is in the shaft bottom, owing to the interference of gas and the factors such as corrosion of liquid, makes the lifetime of motor.
Summary of the invention
The objective of the invention is the problem that exists to prior art, provide a kind of safety and stability, for ease of maintenaince, cost is lower, can produce continuously, the method that can effectively solve row's coal draining in the coal bed gas jetting process and gather coal bed gas.
The object of the invention can be realized through following technique measures (step):
(1) adopts known device to carry out desired depth in vertical drilling operation to the target coal seam, and adopt known technology connection row coal water to go out gas well and waterpower migration pathway by ground;
The follower that (2) will have a balancing weight is placed on Pai Meishui and goes out the gas well shaft bottom, and the weight of balancing weight should be confirmed according to the rotating speed of follower, is prerequisite to guarantee that balancing weight does not leave the shaft bottom; And the transfer that will have driving wheel, deflecting roller A and deflecting roller B is arranged on Pai Meishui and goes out gas well mouth, and above-mentioned each wheel connects through two transmission bars, and skip bucket is fixed between two driving-chains;
(3) go out gas well mouth at Pai Meishui the sealing room is set, the sealing room is enough to hold transfer and leaves enough spaces;
(4) adopt the known technology coal mouth of a river that begins to rehearse in one side walls bottom, sealing room, and high Nei Chi and Wai Chi such as inside and outside wall, establish respectively, Nei Chi is communicated with by arranging the coal mouth of a river with outer pond, and pool wall is higher than arranges top, the coal mouth of a river;
(5) leave gas port on sealing opposite side wall top, room, the gas outlet links to each other with the plenum chamber inlet through pipeline;
(6) driving wheel drives the skip bucket motion, and then the row's of excavation coal water goes out the coal-water mixture in gas well shaft bottom, and top, pond in reaching with driving wheel through reverse wheel A is poured onto interior pond, goes out the continuation excavation of gas well shaft bottom through deflecting roller B to row's coal water afterwards;
(7) through row's coal mouth of a river; Adopt known technology that coal-water mixture is imported outer pond by interior pond;, coal-water mixture begins to collect the coal bed gas of output after flooding the Pai Meishui gas outlet; Coal bed gas is imported in the plenum chamber, and the coal-water mixture that will drain into outer pond simultaneously carries out moisture content of coal and leaves isolated water circulation use;
Beneficial effect of the present invention is following:
Vertical shaft chain bucket row coal water pumping gas production method provided by the invention is used chain drive, skip bucket automatic mining, can realize continuous and stable production; Bucket arrangement, simple in structure, for ease of maintenaince, use prior art to realize; Chain bucket row device for picking, cost is lower, energy consumption is low, realizes purpose of energy saving.
Description of drawings
Fig. 1 is an overall structure sketch map of the present invention;
Be labeled as among the figure: 1: Pai Meishui goes out gas well; 2: ground; 3: the coal seam; 4: the waterpower migration pathway; 5: balancing weight; 6: follower; 7: driving wheel; 8: deflecting roller A; 9: deflecting roller B; 10: driving-chain; 11: skip bucket; 12: the sealing room; 13: row's coal mouth of a river; 14: interior pond; 15: outer pond; 16: the gas outlet; 17: plenum chamber;
Solid arrow is the driving-chain transmission direction among the figure.
The specific embodiment
To combine an embodiment (accompanying drawing) to do below the present invention further describes;
As shown in Figure 1, a kind of vertical shaft chain bucket row coal hydromining gas method of the present invention, the practical implementation step is following:
Step 1, the row's of setting coal water goes out gas well (1): adopt known device to carry out suitable distance under vertical drilling operation to the target coal seam (3) by ground (2), and adopt known technology connection row coal water to go out gas well (1) and waterpower migration pathway (4);
Step 2; The follower (6) that will have balancing weight (5) is placed on Pai Meishui and goes out gas well (1) shaft bottom; And the transfer that will have driving wheel (7), deflecting roller A (8) and deflecting roller B (9) is placed row's coal water and is gone out gas well (1) well head; Above-mentioned each wheel connects through two driving-chains (10), and skip bucket (11) is fixed between two driving-chains (10);
Step 4; Adopt the known technology coal mouth of a river (13) that begins to rehearse in (12) one side walls bottom, sealing room; And high interior pond (14) and outer pond (15) such as inside and outside wall, establish respectively, and interior pond (14) are communicated with by arranging the coal mouth of a river (13) with outer pond (15), and pool wall is far above arranging top, the coal mouth of a river (13);
Step 6; Driving wheel (7) drives skip bucket (11) motion, and then excavates the coal-water mixture that coal water goes out gas well (1) shaft bottom, reaches top, interior pond (14) through reverse wheel A (8) and driving wheel (7); Be poured onto interior pond (14), go out gas well (1) shaft bottom through deflecting roller B (9) to row's coal water afterwards and continue to excavate;
Should be noted that said skip bucket (11) can automatic mining row coal water goes out the coal-water mixture in gas well (1) shaft bottom with driving-chain (10) motion; The weight of said balancing weight (5) should be enough big, is prerequisite to guarantee that balancing weight (5) does not leave the shaft bottom; Said deflecting roller A can carry out the level migration to coal-water mixture, and it is drained into interior pond (14), thus the successfully row's of realization coal draining; The perforation in interior pond (14) and outer pond (15) can be realized in said row's coal mouth of a river (13), makes coal-water mixture discharge sealing room (12).
Claims (2)
1. a vertical shaft chain bucket row coal hydromining gas method comprises following step, it is characterized in that:
Step 1, the row's of setting coal water goes out gas well (1): adopt known device to carry out desired depth in vertical drilling operation to the target coal seam (3) by ground (2), and adopt known technology connection row coal water to go out gas well (1) and waterpower migration pathway (4);
Step 2; The follower (6) that will have balancing weight (5) is placed on Pai Meishui and goes out gas well (1) shaft bottom; And the transfer that will have driving wheel (7), deflecting roller A (8) and deflecting roller B (9) is arranged on Pai Meishui and goes out gas well (1) well head; Above-mentioned each wheel connects through two conveyer chains (10), and skip bucket (11) is fixed between two driving-chains;
Step 3 goes out gas well (1) well head at Pai Meishui sealing room (12) is set, and sealing room (12) is enough to hold transfer and leaves enough spaces;
Step 4; Adopt the known technology coal mouth of a river (13) that begins to rehearse in (12) one side walls bottom, sealing room; And high interior pond (14) and outer pond (15) such as inside and outside wall, establish respectively, and interior pond (14) are communicated with by arranging the coal mouth of a river (13) with outer pond (15), and pool wall is higher than arranges top, the coal mouth of a river (13);
Step 5 is left gas port (16) on sealing opposite side wall top, room (12), and the gas outlet links to each other with plenum chamber (17) inlet through pipeline;
Step 6; Driving wheel (7) drives skip bucket (11) motion, and the row's of excavation coal water goes out the coal-water mixture in gas well (1) shaft bottom, reaches top, interior pond (14) through reverse wheel A (8) and driving wheel (7); Be poured onto interior pond (14), pass through deflecting roller B (9) afterwards and go out the continuation excavation of gas well (1) shaft bottom to row's coal water;
Step 7; Through the row coal mouth of a river (13); Adopt known technology that coal-water mixture is imported outer pond (15) by interior pond (14), after coal-water mixture floods Pai Meishui gas outlet (13), begin to collect the coal bed gas of output, coal bed gas is imported in the plenum chamber (17); The coal-water mixture that will drain into outer pond simultaneously carries out moisture content of coal and leaves isolated water circulation use;
2. a kind of vertical shaft chain bucket row coal hydromining gas method as claimed in claim 1, it is characterized in that: skip bucket (11) can the row's of excavation coal water goes out the coal-water mixture in gas well (1) shaft bottom along with the motion of driving-chain (10); The weight of balancing weight (5) should be enough big, is prerequisite to guarantee that balancing weight does not leave the shaft bottom; The perforation in interior pond (14) and outer pond (15) can be realized in the row coal mouth of a river (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104501886A CN102410002A (en) | 2011-12-29 | 2011-12-29 | Vertical shaft chain bucket coal-water drainage and gas recovery method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104501886A CN102410002A (en) | 2011-12-29 | 2011-12-29 | Vertical shaft chain bucket coal-water drainage and gas recovery method |
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| CN102410002A true CN102410002A (en) | 2012-04-11 |
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| CN2011104501886A Pending CN102410002A (en) | 2011-12-29 | 2011-12-29 | Vertical shaft chain bucket coal-water drainage and gas recovery method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3874733A (en) * | 1973-08-29 | 1975-04-01 | Continental Oil Co | Hydraulic method of mining and conveying coal in substantially vertical seams |
| CN1854459A (en) * | 2005-04-21 | 2006-11-01 | 余力 | Underground coal gasification |
| CN101545366A (en) * | 2009-05-04 | 2009-09-30 | 长沙矿冶研究院 | Underwater mining method and device |
| CN201517406U (en) * | 2009-10-13 | 2010-06-30 | 中国石油天然气股份有限公司 | Three-channel closed coal bed gas well gas-lift system |
| CN101775974A (en) * | 2010-01-28 | 2010-07-14 | 郑州大学 | Method for exploiting coal bed methane (CBM) by water transportation and pressure relief in butted well |
| CN101775975A (en) * | 2010-01-28 | 2010-07-14 | 郑州大学 | Method for exploiting coal bed gas by hydraulic drilling and pressure relieving |
-
2011
- 2011-12-29 CN CN2011104501886A patent/CN102410002A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3874733A (en) * | 1973-08-29 | 1975-04-01 | Continental Oil Co | Hydraulic method of mining and conveying coal in substantially vertical seams |
| CN1854459A (en) * | 2005-04-21 | 2006-11-01 | 余力 | Underground coal gasification |
| CN101545366A (en) * | 2009-05-04 | 2009-09-30 | 长沙矿冶研究院 | Underwater mining method and device |
| CN201517406U (en) * | 2009-10-13 | 2010-06-30 | 中国石油天然气股份有限公司 | Three-channel closed coal bed gas well gas-lift system |
| CN101775974A (en) * | 2010-01-28 | 2010-07-14 | 郑州大学 | Method for exploiting coal bed methane (CBM) by water transportation and pressure relief in butted well |
| CN101775975A (en) * | 2010-01-28 | 2010-07-14 | 郑州大学 | Method for exploiting coal bed gas by hydraulic drilling and pressure relieving |
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Application publication date: 20120411 |