Drilled hole opening mixed dedusting and noise reduction device, drilling equipment and working method

Abstract

The invention discloses a drilled hole opening mixed dedusting and noise reduction device, drilling equipment and a working method. The drilled hole opening mixed dedusting and noise reduction devicecomprises a dedusting and noise reduction pipe. The dedusting and noise reduction pipe comprises an outer pipe body and a special-shaped inner pipe body embedded into the outer pipe body. A sound absorbing component is arranged between the outer pipe body and the special-shaped inner pipe body. A plurality of spray nozzles are arranged on the pipe wall of the special-shaped inner pipe body and communicate with an automatic water supply device. A water collecting hopper is arranged on the pipe wall of the special-shaped inner pipe body and corresponds to the spray nozzles. The water collectinghopper communicates with a slop tank. A dust suction inlet is further formed in the pipe wall of the special-shaped inner pipe body, a dust suction hopper is arranged on the pipe wall of the special-shaped inner pipe body and corresponds to the dust suction inlet, and both the dust suction inlet and the dust suction hopper communicate with a dust collector. According to the drilled hole opening mixed dedusting and noise reduction device, drilled equipment and the working method, no rubber seal ring is needed, dust sewage and drilling rock slag can be recovered, dust falling can be performed actively, drilling noise can be absorbed, accordingly, the purposes of air purification and noise reduction are achieved, and construction safety and personnel health are protected easily.

Description

technical field [0001] The disclosure relates to the field of dust removal and noise reduction for drilling, and in particular to a hybrid dust removal and noise reduction device for drilling holes, drilling equipment and a working method. Background technique [0002] With the rapid development of my country's national economy and basic engineering, mine roadway engineering, underground tunnel engineering and open-pit mining are increasing, and various types of drilling are often required in engineering construction, such as geological exploration drilling, hydrological observation drilling, development Drilling and blasting drilling, etc., the methods currently used in drilling construction are usually divided into rotary type, rotary impact type and impact type. [0003] The rotary impact type and impact type are more suitable for drilling hard and complete rock formations, and have the advantage of fast construction. However, these two drilling methods are easily accompan...

AI Technical Summary

Problems solved by technology

[0007] 3. The device is a passive dust suppression device, which can only wait for the dust to fall and accumulate, and it is easy to accumulate in the dead corner of the drill pipe ventilation pipe

[0011] 3. Lack of noise control measures

[0013] 1. The device mixes compressed air and atomized water in the air-water mixing box. If the drilling depth is large, the mixed water mist needs to be transported for a long distance before reaching the drill bit. Therefore, after long-distance transport The effect of water mist dust reduction is attenuated;

[0014] 2. When a pneumatic impactor is used for drilling, high-pressure air will be ejected from the end of the drill bit, so that the water mist cannot reach the drill bit, and dust can only be reduced behind the drill hole.

[0016] 1. The air compressor and the pressurized water tank are only connected through the pressure pipeline of the water tank, and the air supply volume cannot be adjusted, so that the water spray volume of the spray head cannot be adjusted

[0017] 2. The pressurized water tank is sealed, and the operation of adding water to the pressurized water tank during the construction process is relatively cumbersome

[0018] 3. The installation angle of the spray head is 90°, which is only suitable for vertical holes. When the inclination angle of the drilling hole changes, the spray dust reduction effect of the spray head is limited

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