Mine prevention Sandblasting hose It is widely used in mining equipment and machinery. Some customers dial the phone to learn about the common faults of the rubber hose joint classification in the whole process of the application of mine sandblasting rubber hose. The quotation software for mining sandblasting hose has already consulted relevant professional technicians for you, and carried out the following root causes:
(1) Because the cleanliness of underground materials is low and there is more vapor in the materials, cavitation is very easy to occur on the one hand. When cavitation occurs, the high value of working pressure can exceed 2GBPa. On the other hand, the high speed and large flow moisturizing emulsion with fine residues is very easy to cause metal wire drawing erosion. The destruction of the vulcanized rubber layer in the sand blasting rubber hose accelerated the erosion of the manual woven steel wire mesh of the rubber hose, and reduced the tensile strength of the sand blasting rubber hose. The working pressure wave has a strong impact on the mining sandblasting rubber hose and vulcanized rubber three-way joint parts, causing the risk cross section of mining sandblasting rubber hose and connector parts to break (break).
(2) Common faults of pipeline components during service life. Because it is impossible to regularly check and accurately distinguish whether the sandblasting hose and pipeline components are invalid or meet the service life, the total number of components applied on the spot is very large, which exceeds the service life (according to relevant overseas requirements, the validity period of sandblasting hose after the original factory is 2 years). This sandblasting high-pressure hose is often prone to common failures in the whole process of application, resulting in an increase in the repair rate.
(3) Three gear pumps or five gear pumps are selected as the pressure source of the hydraulic transmission system. The rated working pressure is high, the total flow is large, the working pressure fluctuation is large, and the pipeline components are easy to be damaged by fatigue. When the main liquid supply pipeline works under the single pulse sand blasting treatment for a long time, the sealing ring, U-shaped clamp, sand blasting hose connector, etc. are invalid. It is far more than the invalid frequency of the sandblasting hose in the support frame. Since the sandblasting hose 0 only undertakes sandblasting in the support frame position, the position time is very short, and the invalid principle is different.
(4) Emulsion has low confidentiality, high relative density and weak corrosion resistance. Very different mines have very large differences in water ph, acidity and alkalinity. Underground emulsified oil often fails to reach the required water oil ratio. Vulcanized rubber is difficult to avoid mildewing, hardening and embrittlement due to long-term foam penetration in such substances. Because a lot of dust and moisture in the working environment and the friction between the vibrating pipeline and the natural environment objects, the vulcanized rubber on the surface of the sandblasting hose is damaged, and the anti-corrosion layer on the surface of the connector parts falls off, which promotes the whole process of destruction.
(5) The reasonable layout of the design scheme is not scientific. Incorrect layout Sandblasting hose Under the long-term effect of external force (tension resistance and torque resistance), the service life of mine sandblasting hose is reduced.
