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The wet spraying manipulator should be properly repaired and maintained to increase its service life. How to maintain and repair the wet spraying manipulator?

The wet spraying manipulator should be properly repaired and maintained to increase its service life. How to maintain and repair the wet spraying manipulator?

Requirements for concrete slump in fine stone concrete pumping
When the concrete with a slump of 10-15 cm is dumped into the hopper, its surface is easily broken; when the slump is less than 10 cm, the concrete is completely broken after tilting, and has a serrated edge, which breaks vertically. into thick blocks;

To improve the pumpability of concrete, it is necessary to increase the amount of cement, use a larger water-cement ratio and sand ratio, and use a stricter aggregate gradation, which means an increase in cost or a decrease in quality. A more economical and effective way is to use admixtures to improve the pumpability of concrete. There are many types of additives, among which the admixtures that can improve the pumpability of concrete include air-entraining agents,

How to maintain and repair the wet spray manipulator? Proper repair and maintenance of the wet sprayer can greatly increase its service life.

The maintenance before and after use of the wet spraying machine requires frequent maintenance, so as to maintain its high performance, as smooth as new, reduce the number of failures, and bring greater benefits to the company. The same goes for wet sprayers. As the most advanced shotcrete support equipment in China, the concrete wet shotcrete machine has a wide range of uses, and the construction environment is also extremely complex,

The maintenance before and after use of the wet spraying machine requires frequent maintenance, so as to maintain its high performance, as smooth as new, reduce the number of failures, and bring greater benefits to the company. The same goes for wet sprayers. As the most advanced shotcrete support equipment in China, the concrete wet spraying machine has a wide range of uses and the construction environment is also very complicated

Requirements for Cement Conveyed by Fine Stone Concrete Pump
1. Reduce the frictional resistance of the mechanical part of the concrete with the pump, the conveying pipeline and the interior of the concrete and have good fluidity.

Fine aggregates can be divided into river sand, sea sand, mountain sand and artificial crushed sand according to their sources. The concrete using the former has better pumpability; the artificial sand has a rough surface and poor sand shape, so it is necessary to add some natural sand to improve its proportioning properties, but the artificial sand has better water retention, which can reduce the bleeding and segregation of concrete.

Requirements for Concrete Aggregate Conveying by Fine Stone Concrete Pump

2. Coarse aggregate

Pumped concrete can be made of pebbles, crushed stone or a combination of pebbles and crushed stone.

The laying of the delivery pipe of the pumping wet spray trolley First, whether the laying of the pipeline reasonably affects the construction efficiency and quality of the pumped concrete. The pumping pipeline generally follows the "principle of short straight line between two points", and reduces pipe bends to a great extent. And the utilization rate of the hose, when using the elbow, try to avoid the bending of the elbow is too large.

If the pressure of the concrete pump is too high and unstable, and the oil temperature rises. When the conveying pipe vibrates obviously and the pumping is difficult, it is not allowed to pump forcibly, and the cause should be immediately identified and eliminated. The delivery pipe can be bent first by hitting it with a mallet. Conical pipes, etc., and pump at a slow speed or reverse pump to prevent clogging.

. Concrete pump is a very commonly used concrete pump at present, and has been widely used by major construction units. In the construction process, according to the different engineering conditions and construction environment, users usually use different forms of small concrete delivery pumps.

This scheme has the advantages of simple construction and low construction cost, but the pumping pressure of this scheme is too high, which is easy to cause leakage, leading to many problems such as concrete segregation and pipe blockage. The requirements are extremely high; at the same time, once the project is completed, the pump is not economical for other general projects.

The pumped concrete should meet the pumpability requirements, and if necessary, the mix ratio of the pumped concrete should be determined through test pumping.

1. Straight line laying of pipelines: In the process of laying concrete pump pipelines, it is generally necessary to ensure that the pipeline laying lines and pouring points of the pumping equipment are straight, and the bending degree is minimized. At the same time, the laying of the concrete pump pipeline support and the fixing of the pipeline must be tight and reliable, the pipeline joints should be kept sealed and reliable, and the hose and the steel pipe should not be mixed together.

The strict use requirements of the wet spraying machine for mining need to be known so that the safety of users and the service life of the machine can be guaranteed.

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Time flies, the annual vacation is about to start, and the maintenance of the hydraulic concrete placing boom machine must be done well before the holiday.
1. Maintenance of mechanical system.
1. Check whether the connecting bolts, shaft end clamps, pins, and nuts for locking the hydraulic placing boom are loose.
2. Check whether the cotter pin of the cloth machine falls off.

Hydraulic placing boom machine is a kind of terminal equipment used with concrete pump, which is suitable for the construction of high-rise buildings and large-area concrete pouring projects, which improves the quality and construction progress of concrete pouring. However, what type of hydraulic placing boom machine should be used under special construction conditions?

After working for a period of time, everyone will choose a place for vacation. Concrete wet spraying machine is a commonly used concrete wet spraying equipment. After many times of construction, it also needs to be maintained. The cured concrete wet spraying machine can not only help improve construction efficiency and shorten the construction period, but also greatly reduce the labor cost of construction.

The wet spraying machine adopts hydraulic transmission, pumping the concrete to a certain distance or to the nozzle, and then sprays the concrete onto the supporting surface with compressed air. At the same time, add an appropriate amount of accelerator to mix with the concrete at the nozzle to accelerate curing The dosage of the agent is adjusted by the metering pump.

1. Straight-line laying of pipelines: In the process of laying concrete pump pipelines, it is generally necessary to ensure that the pipeline laying lines and pouring points of the pumping equipment are straight, and the curvature is minimized as much as possible. At the same time, the laying of the concrete pump pipe support and the fixing of the pipe must be tight and reliable, and the pipe joints should be sealed and reliable, and the hose and steel pipe should not be mixed together.

1. Concrete placing booms Operators need to go through relevant technical learning and training, carefully read the operating instructions, be familiar with the working principle of the cloth machine, master the working essentials, and be in good health. They can only work after passing the inspection.

1. When the wind speed exceeds level 6, the concrete placing boom is strictly prohibited from working. When the wind speed exceeds level 4, disassembly and assembly of the concrete distributor is strictly prohibited.
2. The placing boom should keep a certain distance from the high-voltage wire relay.

Mobile & walking
The mobile hydraulic distributing machine is composed of distributing placing boom assembly, swivel support, tower body, underframe, concrete pipeline, hydraulic system, electrical system and other components.

With the continuous emergence of high-rise buildings, problems such as high wind load and high pumping have brought great difficulties to the construction of high-rise structures. Among them, the construction of concrete placing boom is a big problem.

The fine-stone concrete pump is a special type of concrete pump. This concrete pump is widely used in floor heating projects and floor construction, so it is welcomed by the majority of construction parties. So on the construction site, what are the pumping requirements of the fine stone concrete pump? Now let’s take a closer look.