CN2580094Y - Medium and small rotary drill machine reverse circulation device - Google Patents
Medium and small rotary drill machine reverse circulation device Download PDFInfo
- Publication number
- CN2580094Y CN2580094Y CN 02270245 CN02270245U CN2580094Y CN 2580094 Y CN2580094 Y CN 2580094Y CN 02270245 CN02270245 CN 02270245 CN 02270245 U CN02270245 U CN 02270245U CN 2580094 Y CN2580094 Y CN 2580094Y
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- Prior art keywords
- centrifugal pump
- drill rod
- utility
- model
- drilling rod
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- Expired - Lifetime
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Abstract
The utility model relates to a reverse circulation device of a medium and small rotary drill machine, which is improved on the basis of the prior art and comprises a drill rod. The utility model is characterized in that the drill rod is a circular pipe drill rod with a large inner hole, and the upper end of the drill rod is connected with a mud pipe and a centrifugal pump in sequence through joints. The centrifugal pump is driven by the motive power of a drill machine through a belt pulley of the centrifugal pump, and the outlet end of the drill rod is connected with a mud discharge pipe. With reasonable design, simple structure and convenient operation, the utility model is used for pebble strata and can also enhance the well drilling construction speed for soil and sand strata.
Description
Technical field: the utility model belongs to the drilling rig technique scope, relates to the anti-circulating device of a kind of middle-size and small-size rotary drill.
Background technology: the middle-size and small-size rotary drill of prior art does not generally all have the anti-cycling mechanism of mud, in drilling construction, all is to adopt slush pump water filling in drilling rod, and mud is discharged from drilling rod and borehole wall gap.When running into cobble, because cobble is heavier, and diameter is bigger, and cobble all can't be discharged usually, even adopt the mode of coring, also often is difficult to gather effect.Therefore, often the drilling well of Hot work in progress is abandoned, telephone-moving is bored in addition, causes serious waste.Though present large type drill also uses the anti-cycling mechanism of mud,, it is supporting large-scale inverse circulation pump, price is higher, and power requirement is big, is not suitable for middle-size and small-size rig.
Summary of the invention: the purpose of this utility model is for overcoming the above-mentioned defective of existing in prior technology, and provide a kind of middle-size and small-size rotary drill anti-circulating device, this device is to improve realization on the basis of existing technology, comprise drilling rod, its main points are that its drilling rod is an imperial palace hole circle pipe bit bar, and the upper end of drilling rod connects mud tube and centrifugal pump successively by joint, and centrifugal pump is driven by rig power by its belt wheel, the port of export slurry discharge pipe that grafts clay promptly constitutes the anti-circulating device of mud.The utility model is reasonable in design, and is simple in structure, easy to operate, both can be used for the direct circulation drilling operation, can be used for the reverse circulation drilling operation again, both has been applied to pebble layer, can improve soil, sandy ground layer wellbore construction speed again.
Description of drawings: Fig. 1 is main TV structure figure of the present utility model
Fig. 2 is the utility model drilling rod part enforcement illustration equipped with vertical shaft box
The specific embodiment: Fig. 1, Fig. 2 have provided an embodiment of the present utility model, according to Fig. 1, shown in Figure 2,1 is drilling rod among the figure, this drilling rod is an imperial palace hole circle pipe bit bar, the upper end connects mud tube 3 and centrifugal pump 4 successively by joint 2, centrifugal pump 4 is driven by rig power by its belt wheel, and the port of export grafts clay and starches discharge pipe 5, constitutes the anti-cycling mechanism of mud.Aspect drilling rod 1 and vertical shaft box 8 equipped, as shown in Figure 2, the external diameter of the internal orifice dimension of its axle sleeve 7 and drilling rod 1 is corresponding, and 7 on drilling rod 1 and axle sleeve are provided with key 6.
Claims (1)
- The anti-circulating device of a kind of middle-size and small-size rotary drill, comprise drilling rod 1, the drilling rod 1 that it is characterized in that it is an imperial palace hole circle pipe bit bar, and the upper end of drilling rod 1 connects mud tube 3 and centrifugal pump 4 successively by joint 2, centrifugal pump 4 is driven by rig power by its belt wheel, and the port of export grafts clay and starches discharge pipe 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270245 CN2580094Y (en) | 2002-10-15 | 2002-10-15 | Medium and small rotary drill machine reverse circulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270245 CN2580094Y (en) | 2002-10-15 | 2002-10-15 | Medium and small rotary drill machine reverse circulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2580094Y true CN2580094Y (en) | 2003-10-15 |
Family
ID=33735336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02270245 Expired - Lifetime CN2580094Y (en) | 2002-10-15 | 2002-10-15 | Medium and small rotary drill machine reverse circulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2580094Y (en) |
-
2002
- 2002-10-15 CN CN 02270245 patent/CN2580094Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121015 Granted publication date: 20031015 |