博文

目前显示的是 十二月, 2019的博文

Common engineering rig types and working principle

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First, the impact drill The vertical reciprocating motion of the drill causes the drill bit to impact the bottom of the well to break the rock formation. The structure is simple, there is no circulation washing system, and the removal of cuttings and the drilling machine cannot be performed at the same time, so the efficiency is low. Drilling depth is generally within 250 meters, sometimes up to 500-600 meters. There are two main types: 1.  tophammer drill rig . Use the weight of the drill itself to impact the formation. The lower end of the drill is several sharp-angled flaps that can be folded. When the drill moves downward under its own weight, the flap opens and cuts into the rock layer, and then the drill is lifted by the winch through the wire rope, and the flap is closed. During the process, the cuttings are caught in the cone, and the cuttings are discharged from the wellhead. The drilling depth is usually 40 to 50 meters, and the deepest is 100 to 150 meters. 2. wire ro

What are the reasons for rig track delinking and how to deal with it?

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For rig operators, track disconnection is a common problem. For rigs, occasional off-chain is unavoidable, because the working environment is relatively harsh, and crawling into the soil or stones will cause off-chain. If the rig is often off-chain, then it is necessary to find the cause, because the off-chain of the rig can easily lead to accidents. What are the reasons for the rig off-chain? Today,  water well drilling rigs supplier  will briefly talk about the common reasons for off-chain. In fact, there are many reasons for the rig to be off-chain. In addition to impurities such as track entering the soil or stones will cause the rig to be off-chain, there are also faults in the walking ring gear, de-sprockets, and chain protectors that will cause off-chain. In addition, improper operation will cause the rig to be off-chain. 1. Tension cylinder failure caused chain disconnection. At this time, you should check whether the tensioning cylinder has forgotten to butter and see

Precautions for installing hydraulic drill rig

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What are the precautions for hydraulic drill rigs during transportation? The main function of the  hydraulic drill rig  is to drill the water well and complete the mechanical equipment such as the downhole pipe and the well washing. Including power equipment and drill bits, drill pipes, core tubes, drill stands, etc. Generally divided into three categories: rotary transfer, impact drill and composite transfer. The water well drilling rig is the main tool for mining mining. Because the volume of the water drilling rig is too large, the water drilling rig should pay attention to many problems during transportation. The following water well drilling rig manufacturers will briefly introduce the transportation precautions of the water drilling rig. When the  water well drilling rig  moves away from the machine, the center of gravity should be balanced according to the road conditions. The construction site is forbidden to drill holes. The backfill pit pool should be marked. The narro

Comparative Analysis of Rotary Drilling Rig, Percussion Drill and Rotary Drill

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The following is an analysis comparison between the three most common drilling rigs, impact rigs, rotary rigs, and rotary drilling rigs. First, analysis of impact rig Impact rigs are suitable for almost all geological conditions, from cohesive soils, sandy soils, to gravel layers, pebbles, pumice stones to soft rocks, hard rocks. Impact drills are particularly suitable for hole formation in rock-socketed piles in hilly hills. When the surface layer is weak soil, you can replace the surface soil to stabilize the  DTH rock drilling rigs . Second, analysis of rotary rig Rotary rigs, regardless of the forward circulation or reverse circulation drilling rigs, are applicable to cohesive soils, soil layers containing a small amount of gravel and pebble, and soft rocks. Among them, the positive circulation rig is also suitable for silt and fine medium coarse sand layers. Reverse circulation rig In the sand layer, if the mud regulation index is not enough or the rig speed is too fast,