Contact Wei Wei 15165927555 Jinan Heavy Machinery Manufacturing Co., Ltd. Connaught - Details Login www.jnznjx.cn (1) concrete pumpability. Pumping concrete pumpability requirements should meet, as necessary, to determine by trial pumping pumping concrete mix. ① The maximum size of coarse aggregate and conveying diameter ratio shall be: pumping height of 50m or less, not more than 1:3 for gravel, pebbles for not more than 1:2.5; pumping height of 50 ~ 100m time , should be in the range of 1:3 to 1:4; pumping height of 100m or more, should be between 1:4 to 1:5. Flakiness particle content of not more than 10%. ② different pumping height, the slump of the concrete into the pump may be (as shown in Table) selection. Pumping height (m) 30 30 60 60 less than 100 100 Slump (m) 100 ~ 140 140 ~ 160 160 ~ 180 180 ~ 200 ③ pumping concrete water-cement ratio is preferably (0.4 to 0.6): 1. ④ pumping concrete sand rate should be 38% to 45%. Fine aggregate should be adopted in the sand, sand sieve through 0.315m amount not less than 15%. ⑤ The minimum pumping concrete cement content 300kg/m3. (2) Concrete pump starts pumping should be appropriate amount of water to wet concrete pump hopper, concrete tanks and pipes and other parts in contact with the concrete directly. Pumping water and then use one of the following methods to lubricate these parts: pumping grout; pump loose 1:2 cement mortar; pumping outside except coarse aggregate distribution and other costs than the cement mortar. Lubricated with grout or cement mortar should be spread cloth, not pouring concentrated in the same place. (3) starts pumping, the concrete pump should be at a slow, constant speed running state, and then gradually accelerate. Concrete pump should be observed while the pressure and the system works, to be behind the system is working properly can be pumped at normal speed. (4) As far as possible continuous pumping of concrete, the concrete cylinder piston stroke should be kept in operation in order to exert maximum performance concrete pumps and concrete can in the longitudinal direction of the cylinder even wear. (5) If there is high pressure concrete pump and unstable, and temperature rise. Pipes and pumping difficulties apparent vibration phenomena, not forced pumping, you should immediately identify the reasons for the exclusion. Can be obtained with a mallet percussion duct elbow. Conical tubes and other parts, and a slow pumping or anti-pump in order to prevent clogging. (6) When a blockage, you should take the following methods excluded: ① repeated anti-pump and the pump is running, gradually returned to suck out the concrete hopper, by mixing and re-pumping. ② with mallet percussion and other methods to identify the blockage site, to be repeated after loose concrete hit counter pumps and pump operation is to eliminate clogging. ③ When the above two methods are ineffective, should be disassembled after the concrete relieving clogged site, to be discharged and re-clog pump. (7) should adopt the ready-mix concrete pumping concrete can also be set up in the field supply pumping concrete mixing station, but not pumping hand mixing concrete. On the supply of concrete should be strictly controlled, and pay attention to changes in slump, do not meet the requirements of the concrete pumping is not allowed into the pump, in order to ensure the effective work of the concrete pump. (8) should be set on concrete pump hopper sieve, and let someone monitor the feed, to avoid too large in diameter aggregates or foreign objects to enter and cause blockage. (9) pumping, the stock of the concrete hopper stirring shaft is not less than the position to avoid air entering the pump tube caused by pipe vibration. (10) When the concrete pumping process requires the terminal when its interrupt time should not exceed 1h. And should be carried out every 5 ~ 10min anti pumps and pump operation is to prevent water pipes due to bleeding of concrete slump loss is too large or plugging. (11) After pumping, must be carefully cleaned hopper and pipeline systems. If the residual concrete concrete cylinder clearance is not clean, will solidify on the cylinder wall, run again when the piston, the piston sealing surface on the cylinder wall will be directly exposed to the concrete has cured their impact, leading to push the piston partially peeled off. This damage is different from the normal wear and tear piston seals, sealing surface can not be under pressure, self-compensating, resulting in leakage of plasma or suction air, causing pumping weakness, blockage. (12) When the concrete can be poor or concrete pump emerge bleeding, segregation and difficult pumping should immediately mix, concrete pumps, piping and pumping processes were studied, and take appropriate measures to resolve. Electronic control system: ◇ fully enclosed electrical control box, protection and control device can work in harsh conditions. ◇ main electrical components used in France Schneider (Schneider), Japan's Mitsubishi. (MISUBISH), (Panasonlc) and other world famous brands. ◇ Adopt PLC can be edited, program controller simplifies electrical, reliability and service life improved significantly, and with fault display for easy troubleshooting. ◇ wired, safe and convenient. Hydraulic system: ◇ flip-side door, operation, maintenance, maintenance is very convenient. Door using special technology can effectively reduce operating noise. ◇ dual pump, dual circuit hydraulic system. Main Pump selection of genuine Kawasaki company's products, simple system, component, long life, high reliability. ◇ pumping oil using non-contact automatic commutation and delay control, avoiding the commutation impact commutation accurate, stable and reliable. Hydraulic system with safety overflow protection, overpressure shutoff device automatically cut, multi-stage pumps have reliable protection. ◇ using suction filtration technology, to avoid foreign matter into the hydraulic circuit to improve system reliability while greatly extend the life of system components. ◇ independent forced cooling heat dissipation to ensure oil temperature below 60 ℃ Main technical parameters: Item Unit HBTS60-13-90 HBTS80-13-90 HBTS80-16-110 Concrete theoretical maximum output (low / high) m3 / h 66/40 80/40 81/50 Maximum Pumping pressure (high / low) Mpa 13/7 13/6.5 16/9 Concrete Slump mm 120-230 120-230 120-/230 aggregate size ≤ 50 mm crushed gravel Stone ≤ 40 Power KW motor 90 Motor 90 Motor 110 Speed ??r / min 1480 1480 1480 Pumping Cylinder Bore / stroke mm Φ125/1600 Φ125/1600 Φ140/1800 Concrete Bore / stroke mm Φ200/1600 Φ200/1600 Φ200/1800 high and low Switch Yes Yes Yes Fuel tank capacity L 500 500 500 Hopper capacity m3 0.8 0.8 0.8 Filling height mm 1400 1400 1400 theoretical maximum transmission distance of the vertical / horizontal m 270/1200 270/1200 350/1200 pipe cleaning methods washing Dimensions mm 6000 × 2100 × 2260 6000 × 2100 × 2260 6200 × 2100 × 2260 Machine weight kg 5800 6000 6200