外文翻译--混凝土喷射机的概述及改进(编辑修改稿)

外文翻译--混凝土喷射机的概述及改进(编辑修改稿)内容摘要：

e the use of jet played a certain obstacles Role, even in China, currently the main sprayed concrete operations is still dry spray. 1) use of wet concrete jet of liquid condensate, a joint venture of imports and higher prices (up to 6000 yuan / t ~ 8 000 元 / t), and domestic liquid condensate of no production, should be relatively dry Spray of powder and quicksetting low price (more than 1000 yuan / t). 2) low labor costs and people39。 s environmental awareness to be increased. 3) wet concrete jet operations, more plex equipment, operation and maintenance of jet aircraft for less than dry. 4) the use of wet concrete jet operations, higher equipment investment. 5 Improvement of concreteejecting machines After the concrete improvement of the characteristics of a jet 1) dust better. The improved use of the seal can not be dust, has greatly improved the working conditions of workers, increased labor productivity. 2) increase the flexibility of highadhesive rubber material cavity. Concrete can be an effective solution to the problem of bonded easily, remove the concrete to reduce the number of bonded and improve labor efficiency. 3) use of wearresistant rubber pads. Rubber mats more than double the wear resistance, a decrease of rubber pads to reduce the frequency of the use of replacement cost. 4) the overall change from the original drive shaft posed of three parts, not easy to solve the demolition, the problem of maintenance. Improve the difference between before and after the concrete Jets 1) the original concrete jet rotating body formed by the wearresistant cast iron foundry, without treatment, after the rustbonding, improved after the jet cavity spraying antirust treatment and greatly reduce the possibility of a bond. 2) the original concrete jet rotation of direct contact with the material I, Mifengbuyan。 feed mouth without sealing device, improved to increase a wearres istant rubber pads and mouth and feed ring. 3） In rotating body and mouth spray to increase flexible rubber material, and the rotation of the original concrete jet spray and a flexible rubber mouth cavity. Concrete work of a highpressure jet of air cavity, flexible rubber in the air cavity under the pressure of being pressed, rotating body is constantly rotating, when the rotation of the chamber passed a flexible rubber pressure zone, the pressure disappeared, flexible Rubber cavity in the stretch under its own restitution due to the high flexibility of rubber attached to the cavity on the concrete and scattered by squeezing down, automatic removal of the concrete bonding, in order to facilitate maintenance and replacement of the rotating flexible rubber Liu cavity, the overall 12 will be split into four cavity, each of the three cavity. The same token, I expected to increase in a flexible rubber material cavity. 4) the original concrete jet drive shaft for the overall structure, cleaning up the rotating body cavity or replacement work flexible rubber material cavity, to be screened in Shangzuo body and can also Xiediao, will improve the entire shaft is divided into three parts , The middle of a connecting shaft, through the home side, connecting shaft, the pin will be linked to the twoaxis, demolition, only to tear down。