Water injection hole sealing device for grouting

Specifications After a lot of tests, grouting carefully developed blocking equipment, widely used in hydraulic fracturing, grouting, coal mine

Details:

Water conservancy grouting plug

Grouting, grouting plug plug, water injection hole packer rubber hose, expansion.

Description: grouting plug is our company according to the actual situation in twentieth Century 90 time later period the grouting construction, after a lot of tests, carefully developed is a multifunctional deep hole grouting domestic most advanced blocking equipment. Widely used in hydraulic fracturing, grouting, coal mine gas drainage.

A, use method

1, connecting all piping system, tighten all threaded, switch on the air (or water pump), the grouting plug on the orifice (or one end closed tube) pressure test, check that the connector is put into the hole leakage, spare.

2, open the gas cylinder valve or pressure pump, let the grouting plug expands slowly, pay attention to inflation pressure must be greater than the grouting pressure 2/3, reaches a predetermined pressure grouting.

At the beginning of 3, grouting, the slurry return mouth has a lot of serous benefits, then slow to a predetermined time pressure grouting pressure, otherwise easy to form a larger pressure difference. When grouting should always check the gas bottle valve pressure gauge pressure, such as the reduction should be added.

4, grouting time is long, must check that there is no channeling slurry, around the plug, grout returning phenomenon, such as a stop grouting, release the pressure, pneumatic plug loose, prevent the inflatable plug is consolidation, it is difficult to remove.

5, the end of grouting, grouting pressure must be discharged before, and then release the air pressure, not to let go of the inflation pressure, prevent grouting plug injection, safety accident.

6, grouting is finished, only the grouting plug into the steel tube closed at one end, inflation of about 0.5Mpa, can be recirculated rinse.

7, grouting plug removal, the pipe are respectively connected with the pulp inlet pipe, return pipe connecting irrigation.

8, porous with grouting, all lines must be parallel line, shall not be mixed up, to prevent a hole accidents affecting the other hole safety.

9, after a long time, should be at the lower end of grouting plug disassembled for cleaning, butter.

10, drilling found to have longer crack or break, may occur around the plug back, channeling slurry, slurry, should put another pipe to the upper end of grouting plug, such as channeling slurry, slurry, around the plug back, with high pressure flushing, can prevent jammed.

Two, technical parameters:

To seal the hole diameter 30-200mm (can be processed according to the needs of users)

Working pressure 1-8MPa (can be processed according to the needs of users)

Model	Out diameter Mm	The free state expansion range mm	Suit hole diameter mm	Free state working pressure ≤(Mpa)	The compressive strength of working condition       (Mpa)
					test pressure	bursting pressure
φ32-2	50±2.0	90+8-4	60	6	12	24
φ38-2	55±2.0	95+8-4	65	5	10	20
φ45-2	63±2.0	100+8-4	75	4	8	16
φ45-4	69±2.0	100+8-4	75	16	24	32
φ51-2	69±2.0	110+8-4	90	4	8	16
φ51-4	75±2.0	110+8-4	90	16	24	32
φ64-2	84±2.0	120+8-4	100	3	6	12
φ64-4	90±2.0	120+8-4	100	8	12	16
φ76-2	94±2.0	130+8-4	110	3	6	12
φ76-4	99±2.0	130+8-5	110	8	12	16
φ89-2	109±2.0	140+8-5	130	3	6	12
φ102-2	122±2.0	160+8-5	150	3	6	12

 

The work flow of grouting 3-4.5 tons per hour

Sealing depth 1-150m