Pneumatic cylinder pressure in the compressed gas cylinder can be converted into mechanical energy pneumatic actuators. There cylinder reciprocating linear motion of swinging back and forth and do the two types (see Figure). Reciprocating linear motion of the cylinder can be divided into single-acting cylinder, four kinds of double-acting cylinders, cylinder diaphragm and impact of the cylinder. ① single-acting cylinder: Only one end of the piston rod from the piston side of the gas can produce poly-pressure, air pressure pushes the piston thrust extends return by spring or weight. ② Double-acting cylinder: alternately from both sides of the gas piston, in one or two directions output power. ③ cylinder diaphragm: The diaphragm instead of a piston, the output force in one direction only, with spring return. It's a good sealing performance, but a short trip. ④ impact of the cylinder: This is a new element. It is the pressure of the compressed gas can be converted to kinetic energy of the piston speed (10 to 20 m / sec) movement, in order to do work. ⑤ rodless cylinder: no rod cylinders in general. Magnetic cylinders, cable cylinder two categories. Swing cylinder reciprocating said swing cylinders, the inner cavity delimited by the blades of two, to two gas chambers alternately, do swinging movement of the output shaft, the swing angle of less than 280 °. In addition, the rotation of the cylinder, the gas-liquid damping cylinder and step cylinder and so on. Works to push and pull the piston rod is determined based on the size of the work force required. Thus to select the output of the cylinder when the cylinder force margin slightly. If you choose a small bore, the output power is not enough, the cylinder does not work; but the bore is too large, not only heavy equipment, high costs, and gas consumption increases, resulting in waste of energy. In the fixture design, should be adopted by force agencies to reduce the size of the cylinder. Here is the formula for calculating the cylinder cylinder theoretical output of: F: cylinder theoretical output force (kgf) F ': efficiency of the output force (kgf) 85% when - (F' = F × 85%) D: Cylinder bore (mm ) P: Working Pressure (kgf / C㎡) Example: 340mm diameter cylinder, working pressure of 3kgf / cm2, its theoretical output power as much output power is how much will shoot P, D connections, find F, F?? 'point, too: F = 2800kgf; F' = 2300kgf choose cylinder bore in engineering design, according to their theory of the use of pressure and the size of pushing or pulling, found from experience that in Table 1-1. Example: There is a cylinder which uses pressure 5kgf / cm2, the cylinder launched its thrust 132kgf, (cylinder efficiency of 85%) Q:? The choice much cylinder bore ● by cylinder thrust 132kgf and cylinder efficiency of 85%, calculate the theoretical thrust cylinders for F = F '/ 85% = 155 (kgf) ● 5kgf theory by using the pressure thrust / cm2 and cylinders, bore to detect choose? cylinder 63 can meet the requirements. The main features of gate valve gate valve (1) fluid resistance. Gates inside the medium through hole is straight and does not change its flow direction medium flows, and thus a smaller flow resistance. (2) open and close more effort. When opening and closing the valve plate motion direction perpendicular to the flow direction of the medium. And compared to open and close more effort. (3) medium flow direction is generally unrestricted. Medium can flow in any direction from both sides, can achieve the purpose of making or breaking. Easy to install, the flow direction of the medium may be used to change the pipeline. 2, the main drawback of gate valve (1) height, long opening and closing times. Because when you turn the valve needs to be raised to the top of the seat plate completely through-hole, close the valve plate all the time and need to block the seat falling through holes open and close the valve plate so great trip, will also increase its height, opening and closing longer. (2) sealing surface prone to scratches. Between the two sealing surface of the valve plate in contact with the valve seat when opening and closing sliding, at medium power use is easy to produce scratches, thereby undermining the sealing performance, affecting life. Implementation of standard design specifications: JB / T 7746, API602 length of the structure: JB / T 7746, the factory specification socket / Thread: JB / T1751 / GB7306, ANSI B16.11 / B2.1 test and inspection: JB / T 9092, API598 Pressure - Temperature: GB / T 9131, ANSI B16.34 product identification: GB / T 12220, MSS SP25 delivery specification: JB / T 7928 Dust dust humidifier humidifier is mainly used for power plants, steel mills, iron plants, chemical plants and other departments of Ash put gray water for wet grinding and conveying of powder. The aircraft used for powdered materials for uniform mixing and transport, to clean transportation requirements. Dust humidifier also applies to chemical, mining and other materials containing solid particles humidification, mixing and transport. Dry ash powder material structure consists of two sets of helical blade machine even feed into the host, put into the mixing tank / stir the water tank by means of quantitative supply of water forced mixing, stirring, while the humidity will meet the requirements of the material delivered to the discharge port, the purpose of eliminating dust. Take advantage of the characteristics of dust humidifier biaxial structure is a high mixing efficiency, the system sealed tight, no ash published. Reducer compact structure, small footprint, smooth transmission, low noise, stir, blade wear resistance, easy maintenance and reliable operation, high wear-resistant manganese steel blade structure, equipment last longer than conventional devices, more durable. Dust humidifier requirements must be carefully checked before starting all parts are complete, whether fasteners tightened, sealing parts are tight. 2. injected into gear on the 30th or the No. 40 machine oil, can be put into normal operation. 3. After the dust humidifier should start operating normally, before proceeding to feed, water, should be shut down to stop feeding the material before emptying in the standby shutdown. 4. When the motor load operation found a sudden increase or decrease the mechanical system anomalies, must be shut down immediately check, troubleshooting. Use the steps dust humidifier use dust humidifier is need to have some steps to carry out the order: 1. The machine should be in normal operation after startup, before they are allowed to feed, water, should be shut down to stop feeding, Standby within the material emptied after shutdown. 2. must be carefully checked before starting all parts are complete, whether fasteners tightened, sealing parts are tight. 3. reducer injection within 30 or No. 40 machine oil, users can choose a suitable lubricant according to local conditions, can be put into normal operation. Features dust humidifier machine has compact structure, good overall performance, advanced technology, reasonable process, high reliability, good sealing performance, wear small amount of water can be adjusted to deal with large, long life, can work, low failure rate and so on. Botou Manley dust Equipment Co., Ltd. is located in the famous China Foundry Machinery town - Cangzhou, Hebei Botou, the company is the development, design, production, sales and service in one, factory direct, high-quality products to protect, the price advantage highlights . Since its establishment, always adhere to quality, user-oriented objectives, and people-oriented, integrity management philosophy, over the years to reach a long-term friendly cooperation with many manufacturers, the majority recognized. Our main dedusting equipment: bag filter, single filter, spiral filter, cyclone, pulse dust collector, desulfurization dust, screw conveyors, scraper conveyors, chain conveyors, dust humidifier , unloader, dust bag skeleton, pulse controller, standard cylinder, gate valves, butterfly valves, and other professional ventilation and dust removal equipment and other accessories. The company strictly control the quality of products, strict implementation of the ISO9001 quality system implementation of total quality management, product quality improvement, the company is dusting products in the industry leading level.