Series rotary spray drill pipe is used for transporting slurry, compressed air and water medium such as the main channel of the carrier, in order to satisfy all kinds of jet grouting construction technology, rotary spray pipe in the use of 50, 60, 73, in 89 in geological pipe (Shanghai baosteel of origin) as pipe material, joint is made of high quality alloy steel, xining special steel) as raw materials, through special heat treatment process and advanced dual sealing structure to guarantee the quality of the drill pipe.The connection of drill pipe adopts the domestic leading corrugated buckle connection mode, which has the characteristics of convenient connection, good sealing effect and long service life.
Rotary-jet drill series anti-loose device is a set of protective device used to prevent the diverter from turning. According to the structure of the drill, relevant connection methods are also different, including direct connection with drill pipe and direct connection with rotary device, which have the features of simple structure and convenient installation.
Rotary spray tool series and shunt is the high pressure mud pump, air compressor, high pressure fresh water pump delivery to high pressure slurry, Z contractions air and high pressure water respectively to the drill pipe inside the devices, installed at the top of the drill pipe or gyrator top on the structure and strength to withstand a certain tension, and able to withstand the impact of the next drill pipe vibration drilling, this series of products using the current domestic most advanced sealing device, pressure can reach 30 mpa, good high pressure in the process of drill pipe rotary sealing.It has the characteristics of easy maintenance, simple disassembly and long service life.The air way inlet is provided with a one-way valve to prevent accidental damage to the air compressor.
The rotary jet drill bit is installed at the bottom end of the drill pipe. The top of the drill bit is provided with alloy to facilitate drilling of the drill pipe. Two nozzles are arranged on both sides of the drill barrel.Three single - weight nozzles are installed on the head body to spray high-pressure water.For some soft stratum structures, after a hole to the bottom, without changing the drill bit, the rotary jet can be carried out slowly, which improves the working efficiency.
Rotary-jet drill series transition joint is the company to meet various types of drill, drill and drilling accessories production connection joint transition joint.
Rotary-jet drill series pad forks are used to remove various types of drill pipe tools.