The reason why the rotary drilling machine punches the bottom of the hole, then the corresponding measures will be brought to you today:
1. Rotary drilling rig clearing hole: When there is no steel cage conduit, when the measuring hole has sediment, the drilling machine is equipped with a clear drill bit, and the drill can be cleaned by drilling.
The sediment is lightly loaded, so it is recommended that the machine lock rod directly reverse the slag to avoid unsuccessful unlocking; in addition, pay attention to the depth of the single bucket to prevent the drilling.
2. Positive slag cleaning: The steel cage has been laid down. Before the filling, there is sediment in the bottom of the hole and beyond the specification. The positive circulation punching method can be used to use the mud specific gravity and viscosity to suspend the sediment in the mud and take it out of the hole. In the mud pool. The material of the circulating equipment includes: mud pool and prepared mud, water pump, water pipe, punching joint and conduit.
3. Gas lift reverse circulation: high-flow high-pressure gas is transported to the inside of the pipeline through the air duct. After the air duct is sprayed, it is mixed with the mud, and a gas-liquid mixing section is formed inside the duct. Due to the low density of the mixing section, the upper part is formed by upward flow. Negative pressure, the mud is continuously replenished, and the sediment at the bottom of the hole enters the conduit under the mud flow, and enters the mud vibrating screen with the mud discharge hole. After the sand filter is removed by the mud vibrating screen, the mud flows back into the hole, so the cycle is repeated. Reduce the sand content of the mud and clean the sediment at the bottom of the hole.
4. Clean the pump: After the hole is formed, if the sediment at the bottom of the hole exceeds 10cm, a high-power slag pump can be used to hoist to the bottom of the hole, and the sediment at the bottom of the hole is taken out of the discharge hole. The hole is filled with mud to keep the mud page and form a reverse. cycle.
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Because the mixing barrel moves in multi directions, there is no centrifugal force acting on the materials as well as no phenomena of gravity segregation, lamination and accumulation of materials so that the mixing rate can be up to 99.9%. the barrel has high loading rate, so that it features high efficient and short mixing time. the barrel transitional radius everywhere, conform to GMP.
Multi Direction Movement Mixer
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