Performance characteristics of hydraulic secondary structural column grouting pump
The secondary structural column grouting pump is a concrete pump with compound pumping requirements. It is continuously transported to the pouring site through horizontal or vertical pipelines. It is widely used in secondary structural column filling, floor heating engineering, Roofing, high-rise building walls, reservoirs, hydropower stations, ports, wharves, foundation treatment, weak foundation reinforcement, grouting tunnels, subway and mine construction, backfilling and grouting bolt support.
The construction site secondary structural column pouring pump is suitable for super high-rise fine-stone concrete transportation, and the building floor group structural column pouring column secondary structural column pump. The huge market size has stimulated the creativity of enterprises, and more and more intelligent enterprises have poured into it. In the era of energy saving and emission reduction, the intelligent building industry has obvious technological advantages. The secondary structure column pump is a small concrete delivery pump in China at present. It is mainly designed for high-tech products for some special construction conditions or narrow space construction conditions that are inconvenient or difficult to complete the construction schedule due to the limitation of the equipment size. The water accumulated in the tanker caused the pumping concrete to segregate and block the pipe. When the tanker driver was washing the tank, the water was not drained, and a small amount of water was accumulated. The purpose was to keep the concrete slurry in the tank. The volume of the tank is large and it is impossible to control how much water is left, resulting in an inaccurate water-cement ratio and segregation of concrete, which seriously affects the quality. For example, the concrete pouring column C20 of a certain project was transported to the site for strong stirring, causing the standpipe elbow to be blocked. When the elbow was removed, there was only a pile of stones at the elbow, without cement mortar, and the stones were stuck tightly. Analysis of the cause: Segregation of concrete, separation of slurry and stones, the slurry goes first, the stones lag behind, the stones continue to increase, the slurry becomes less and less, and there is no lubricating slurry. The stones accumulate and become tighter until they become stuck. , 70% are concrete segregation. From the perspective of pipe unloading, it is thin before drying, concrete is not viscous, stones are not suspended in the concrete body, due to the difference in weight, the slurry slips first when the slurry is separated, and the stones are blocked in the bend or stuck at the joint, causing the pipe to block. Preventive measures: In order to prevent the slump from being too large, the segregation and blocking of the pipe will affect the pumping effect and the concrete quality. ① Scaffolding sand and gravel to prevent the moisture content of sand and gravel from affecting W/C; ② After cleaning the tank, the water in the tank of the tanker must be drained, and the material can be received after confirmation; ③ When using admixtures to adjust the coagulation, the amount must be controlled, according to the tank Inner concrete quantity, budget concrete cement quantity, slump condition, add 1/5 of the original pumping agent cubic quantity, and the number of additions should not exceed 3 times, so as to avoid the superimposition of the admixture exceeding 215 times, which will cause the concrete to be abnormally retarded. It is strictly forbidden to directly add water to the tanker.
The characteristics of the secondary structure column transfer pump: This product adopts screw-type slurry feeding, vibrating screen filter double cylinder reciprocating operation, and is fully capable of transporting various mortars in construction applications. This product has the characteristics of large displacement, high pressure, labor and material saving, and flexible movement. It is an ideal mortar conveying equipment. The advantages of the secondary structure transfer pump: The company's pump has a very small power, only 11KW, and only needs a small generator to work when there is no power supply. The company is the smallest concrete pump in China, and it is the best choice for many narrow construction environments. The company's pumps are light in weight and easy to move. The company's pumps have high configuration, full hydraulic operation, stable performance, compact structure, low failure rate and long life. The company's pumps are affordable. There are three configurations of micro mortar pump, micro fine stone concrete pump, and micro concrete pump for customers to choose from. The company adopts piston structure automatic air pressure technology, which has high working pressure, long pumping distance and high pumping height. Practical value of the new secondary structure column pouring pump 1. The degree of mechanization is improved. The main oil pump adopts a deformed plunger pump, which has high efficiency, strong pressure, less labor, simple construction organization, and saves time and money. 2. The use power is very small, only 7.5KW, and only a small generator can work without power supply. The pump is small in size and light. It can be placed directly on the floor for on-site pouring, and can be placed directly on the floor for pouring. It can pouring more than 200 pumps. It is easy to move and can be pushed by one person. 3. It is widely used in the construction of indoor structural columns and narrow caves. It is also the choice of door and window builders in house construction.
