SU1452621A1 - Apparatus for purifying the drilling mud - Google Patents

Abstract

The invention relates to drilling, engineering, and in particular to equipment for cleaning drilling fluid from sludge. The purpose of the invention is to improve the quality of separation of drilling mud from sludge by providing continuous cleaning of the mesh (C). The device includes a chute, inclined C 2 installed in it, placed under C 2 stationary 3 and movable 4 baribanes (B) and coil springs (P) 7. The latter are installed with the possibility of bending around B 3 and 4, lying across the entire bottom surface of C 2 and made of elastic metal shavings. The gap between the coils P 7 changes when stretched. The movable B 4 is mounted with the possibility of reciprocating shuffling. A firing pin 12 is attached to the lower branches of the P 7. Rubber bands are wound at the ends of the B 3 and 4 to seal the P 7 along the edges. The trough in the lower part is equipped with a device for removing the sludge. The coarse particles moving from the well, moving in the lower part of the gutter, as well as the sludge recovered from P 7 and C 2, are diverted to the dump. During operation of the device, the C 2 is continuously cleaned with the upper branches of A 7, oscillating under the influence of the reciprocating movement of the B 4. 3 3. Sec. F-ly, 4 nl. o (l

Description

Working fluid

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Fig 2

The invention relates to a drilling technique, namely, equipment for cleaning drilling mud from cuttings.

The purpose of the invention is to improve the quality of the separation of drilling mud from sludge by providing continuous cleaning of cjeTKH.

FIG. Figure 1 shows the device, view (top; in Fig. 2, section A-A in Fig. D; and Fig. 3, view B in Fig. 2; in Fig. 4, section B-B in Fig. 3.

The device consists of a frame 1, a grid 2 installed under a grid 2 of fixed 3 rolling 4 drums, lower 5 and upper 6 tons of g, spiral springs 7, enveloping drums 4 and 5 and adjoining them across the entire lower surface of the grid 2 of movable hinged the lever 8 resting freely on the fingers 9 mounted by the ja guide plates 10. The internal cavities of the coil springs have an output ik dump. To the lower branches of the spiral springs, the strips 1 assembled the firing pin 12. The preload of the spiral springs (|) exists by turning the nuts 13 and 14, which 1 1 leads to the movement of the stationary and 1 ~ 10 sliding drums. Between the nuts 15 iji 16, the lugs of the plate 17 are clamped, resting 1 ц on the cams 18 rigidly connected (J; drive shaft 19. On the frame 1 is mounted), the housings of the special bearings 20, which simultaneously serve as guides of the upper 6 and the drive shaft supports 19. The grid 2 is positioned between the lower rods 21, welded along the peripheral surface of the frame, and the upper rods 22, and is attached with a pressure clamp 23. A figured visor 24 is welded to the lower part of the frame 1, supporting the device, a trap sludge and for the installation of Tensioning t g 5. At the ends of the drum 3 and 4, rubber bands 25 are wound to seal the spiral springs along the edges. Frame 1 is hermetically sealed and at the same time secured to the split in the groove 26 of the wooden bars 27.

The device is mounted obliquely in the H with the possibility of ± 20 ° angular displacement. The shaft 19 is driven into rotation from an electric motor through a transmission mechanism, such as a worm gear (not shown). The chute at the bottom is equipped with a device

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for removal of slurry, made in the form of a settling tank 28, valve 29 and hydraulic elevator 30.

The coil springs 7 are chips formed from turning a brass or steel part. They have the peculiarity that the gap in the cross section between its turns can vary as it stretches in the longitudinal direction from 0 to 2 mm and above. The coil springs, in addition to the function of the filtering elements, perform the wipers' job of cleaning the mesh, to which they directly touch.

The device works as follows.

Large particles moving from the well, moving in the lower part of the chute 26, as well as sludge from the springs 7 and the grids 2 of the device, fall into the settling tank 28, from which, at the open valve 29, the high solids content of the slurry is discharged into the dump.

The grid 2 of the device is continuously cleaned with the upper branches of the coil springs 7, oscillating under the influence of the reciprocating movement of the movable drum 4.

Claims (4)

1. A device for cleaning drilling fluid, including a chute, an inclined grid installed in the chute, and a device for removing the sludge, characterized in that, in order to improve the quality of separation of the drilling mud from the sludge by providing continuous cleaning of the grid and fixed drums, coil springs installed with the possibility of skirting the drums and snugly over the entire bottom surface of the net, while the movable drum is mounted with the possibility of return continuous translation. 2. A device according to claim 1, characterized in that the spiral springs are made of elastic metal chips. 3. The device according to claim 1, characterized in that it is provided with a striker attached to the lower branches of the spiral springs. 4. The device according to claim 1, characterized in that it is provided with sealing elements installed at the junction of the net with the groove. but / / F / 27 / 26 TA i / a in-in fieL