Large-diameter dredging hoses are divided into large-diameter water delivery hoses, large-diameter mud suction and discharge hoses, large-diameter oil-resistant hoses, large-diameter acid and alkali resistant hoses, large-diameter high-temperature resistant hoses, large-diameter steam hoses, and large-diameter wear-resistant hoses according to the conveying medium.
The large-diameter water delivery hose is mainly used for conveying or sucking water and other neutral liquids at room temperature, and is mainly used for industrial suction and drainage, agricultural and forestry irrigation, urban drainage, etc.; Dredging; large-diameter oil-resistant hoses are mainly used for conveying and suction of gasoline, diesel, petroleum, lubricating oil, emulsified oil, spark oil and other media; large-diameter high-temperature resistant hoses are mainly used in high temperature places such as superheated water and saturated steam; large Diameter wear-resistant rubber hose is mainly used for conveying and sucking solid granular powder media and cement mortar conveying.
Large-diameter dredging hoses can be divided into high-pressure large-diameter hoses and low-pressure large-diameter hoses according to the task pressure. The medium and low pressure large-diameter hoses are further divided into low-pressure transport large-diameter hoses, positive pressure and low-pressure suction large-diameter hoses. The skeleton layer of the high-pressure large-diameter hose is a multi-layer steel wire braid or a surrounding reinforcement layer. The skeleton layer of the low-pressure large-diameter hose is a multi-layer cloth/cord surrounding reinforcement layer, plus a spiral steel wire skeleton reinforcement layer. The negative pressure suction hose adopts a double-layer spiral steel wire skeleton reinforcement layer structure. Deflated or deformed.
There are different process methods for processing and forming large-diameter dredging hoses.
Coil the inner layer hose with the tube core on the coiling machine or braiding machine, and then coil the copper-coated steel wire or copper-coated steel wire rope on the coiling machine or braiding machine. For the large-diameter hose, the middle-layer rubber sheet is synchronously coiled on every two layers of copper-coated steel wire or copper-coated steel wire rope on the coiling machine or braiding machine. between. The processing methods of the large-diameter hose skeleton layer and the hose forming equipment are different for the hoses that do not conform to the structure and the skeleton.
