-
-
-
-
Honor
-
-
-
-
-
Contact
-
16
2019-01
DTH drill in use should pay attention to what matters?
In order to use the down-the-hole drill correctly and ensure the drilling speed and service life of the drill bit, the following points must be paid attention to: 1. Select the down-the-hole drill bit according to the rock condition (hardness, abrasiveness) and the drilling rig type (high wind pressure, low wind pressure). Different forms of alloy teeth and tooth distribution methods are suitable for drilling different rocks. Choosing the correct down-the-hole drill bit is the premise to obtain the best use effect. 2. When installing the down-the-hole drill bit, the drill bit should be gently placed into the clamping sleeve of the down-the-hole impactor. Do not collide with force to avoid damaging the tail shank or clamping sleeve of the drill bit. 3. During rock drilling, ensure that the air pressure of the down-the-hole drill is sufficient. If the impactor is interrupted
2019-01-16
16
2019-01
What should be paid attention to in the use of a word drill bit?
Blast bit is divided into a type, three blade type, cross type, blast furnace opening type. Among them, the most widely used rock drill bit in China is a font. Its connection form is mainly tapered connection, which is used with tapered drill rod (commonly known as finished brazing). In order to correctly use the in-line drill bit and prolong the service life, the following points should be paid attention to: 1. When drilling holes, the rock drill should reduce the air volume to reduce the damage to the drill bit caused by high stress in the hard alloy sheet. When the drill bit is completely drilled into the rock, the normal air volume should be used; 2, to ensure good fit with the tapered drill rod (taper is consistent, the depth of the drill rod inserted into the drill bit taper must be greater than 25mm, and drill bit
2019-01-16
15
2019-01
Characteristics and application scope of geological spiral drill pipe: geological spiral drill pipe is mainly suitable for deep-hole drilling construction with medium-hard and above geological conditions. Geological spiral drill pipe greatly improves the production efficiency of drilling construction and is the first choice for efficient drilling construction, energy saving and consumption reduction in coal mines. Characteristics and application scope of rib drill pipe: rib drill pipe has fast slag discharge speed and low rotation resistance during drilling construction, at the same time, it has the high strength performance and good slag discharge effect of geological drill pipe. Due to the large lead and plane structure design of the spiral blade, the phenomenon of drill pipe locking and drilling tool loss is greatly reduced under the soft coal seam and the impact of the ground pressure strip. In addition, due to the rib drill pipe
2019-01-15
15
2019-01
Spiral drill pipe, single spiral, double spiral, three spiral performance distinction?
Spiral number: single spiral, double spiral, three spiral of different design, is to meet the needs of different geological conditions and drilling process, especially with reference to the needs of slag efficiency and selection. Compared with multi-channel spiral, single spiral has the characteristics of large slag discharge thrust due to its smaller relative pitch, and drill slag is not easy to adhere to the drill pipe, which can better adapt to the looser and sticky drilling environment. Compared with multi-channel spiral design, the number of spiral turns increases, thus the movement time of drill slag in the borehole is longer, and the spiral thrust is relatively low. In the product introduction, the process should be selected reasonably according to the drilling conditions of the customer.
2019-01-15
14
2019-01
DTH drill in use should pay attention to what matters?
In order to use the down-the-hole drill correctly and ensure the drilling speed and service life of the drill bit, the following points must be paid attention to: 1. Select the down-the-hole drill bit according to the rock condition (hardness, abrasiveness) and the drilling rig type (high wind pressure, low wind pressure). Different forms of alloy teeth and tooth distribution methods are suitable for drilling different rocks. Choosing the correct down-the-hole drill bit is the premise to obtain the best use effect. 2. When installing the down-the-hole drill bit, the drill bit should be gently placed into the clamping sleeve of the down-the-hole impactor. Do not collide with force to avoid damaging the tail shank or clamping sleeve of the drill bit. 3. During rock drilling, ensure that the air pressure of the down-the-hole drill is sufficient. If the impactor is interrupted
2019-01-14
14
2019-01
What are the precautions before and during the construction of the hand-held pneumatic drilling rig?
1. preparation work 1. Before installing the drilling rig, the downhole air valve shall be opened to blow the viscera of the pipeline clean. The air pipe has the function of removing air and water. The pipe joint shall be cleaned. The oil mist device shall be filled with oil. The air pipe shall be connected properly. When water is supplied, the water pipe shall be connected to keep the water pipe joint clean. 2. The "three tightness" should be achieved in front of the eyes, I .e. tight cuffs, tight neckline and tight clothing corners. First, don't: don't wear gloves. In the 2. drilling construction, the drill pipe shall be installed with the drill bit and then into the drill sleeve. Then, the two hands hold the handle to stabilize the drill, align the drill bit with the drilling position, hold the air intake wrench by hand, and the air intake valve is opened (closed after loosening). The drill pipe starts to rotate. At this time two
2019-01-14
14
2018-11
Rotary Excavator Drill Pipe Configuration Scheme
Rotary drill pipe is often configured when used in construction. So, how to configure the rotary digging machine drill pipe? The following is to look at the rotary digging machine drill pipe configuration skills. Drilling rod configuration skills of rotary digging machine: 1. During the construction of rotary digging machine, the drilling rod shall be locked by the machine for drilling hard strata and the drilling rod for drilling soft strata shall be strictly observed. 2. When the user determines that a certain formation needs to be drilled for a long time, it is recommended to configure two sets of the same drill pipe for alternate use, so that the drill pipe can be maintained and repaired in time to ensure the user's construction progress. 3. Due to the special geology, it is necessary to choose drill pipe to resist torsion, and the compressive capacity is less than the output of the drilling rig.
2018-11-14
13
2018-11
Rig operation: operation skill mainly lies in pressurization
From the outside, the rotary drilling rig feels very tall, and it feels like the handle after entering the cab. There are many buttons, which generally gives people a complicated feeling. However, the fact is also true. From the positioning of the machine to the auxiliary working condition, and then to the drilling under the main working condition, there are indeed many actions required. However, in order to open the rotary drilling rig well, pressure is the most important among the many operating actions! The pressurization we mentioned here is not blindly downward pressurization through the handle, but for different rock and soil bottom layers, the pressure exertion and time are controlled. The routine is as follows: pressure lifting suspension point floating long floating point pressurization short stroke pressurization long stroke pressurization
2018-11-13
12
2018-11
What are the preparations for the construction of the drill pipe of the rotary digging machine?
Rotary drilling machine drill pipe is a kind of equipment used more in many construction projects. It is fixed on the main winch drum through the wire rope, and the drill pipe can rise or fall accordingly when the drum is rolled or put on the wire rope. In order to ensure that the drill pipe of the rotary excavator works better and more safely, it is necessary to make relevant preparations before construction. The specific contents of the preparatory work are as follows: 1. The construction organization design must be pre-examined. Before the commencement of the project, the construction unit shall review the construction methods, main technical indicators and control measures to ensure that the work is correct. 2. must carefully good measurement positioning off. Measurement positioning is the key to the whole work, related to the hole position
2018-11-12
05
2018-11
How to avoid premature damage of triangular drill pipe?
How to avoid premature damage of the triangular drill pipe? The alternating stress and torque received by the lowest part of the whole set of drilling tool assembly in the operation of the triangular drill pipe is the largest, and the drilling tools in the "dog leg" in the special well are also very easy to be damaged, which will cause different loss of the same batch of drilling tools. Referring to the barrel theory, the stability of the whole set of triangular drill pipe is not determined by the strongest resolution, but by the thinnest one. Therefore, in practice, it is necessary to use the same batch of triangular drill pipes reasonably according to the difficulty of drilling and the frequency of application, which can extend the service life of drilling tools. Three-pronged drill pipe should pay attention to drilling time during drilling.
2018-11-05
