The layout of concrete pump pipes must pay attention to the following points: 1. In order to reduce pumping resistance, try not to place a 90-degree elbow immediately at the outlet of the concrete pump. The correct pipe layout method is to place a 1 to 2 meter short pipe at the outlet of the concrete pump, then connect a 3 meter straight pipe and then consider the 90-degree elbow landing.

70% of our country's area is mountainous and hilly, mainly distributed in the northwest, southwest, central China and northeast. The mountains hinder the way for mountain residents to access the outside world, and the living conditions are also very difficult. In order to build mountain areas, let them come out, and drive the economy, the country has vigorously developed mountainous roads, bridges, and housing projects. In the project, Saintyol DAWIN self-loading mixer truck played a vital role.

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Saintyol DAWIN machinery QKSP-20 truck mounted concrete wet spraying machine is a self-propelled concrete wet spraying machine trolley manipulator with a relatively compact and flexible design on the domestic market. It has many advantages such as compact structure, reasonable layout, powerful functions, beautiful appearance, perfect performance, flexible boom, wide operating range and high reliability.

The shotcrete machine is the core equipment in the construction of shotcrete, and it is widely used in construction, municipal administration, railway and highway tunnels, foundation pits, mines, slopes and other related shotcrete support projects. With the rapid development of underground spaces such as highway and railway tunnels, urban subway tunnels, and mining resources, the demand for concrete shotcrete machines is increasing.

Qingdao Saintyol DAWIN Machinery Co., Ltd. (subsidiary of Qingdao Konelo Group Co., Ltd., Qingdao Huite Heavy Industry Co., Ltd.) is located in the beautiful coastal city-Qingdao, is a collection of scientific research, production, sales It is a large-scale construction engineering machinery and equipment enterprise integrating . XBS series fine stone pumps, HBT series concrete pumps, PJB series shotcrete pumps, SPJ series wet spraying machines, and JBT Series mixing trailer pump

Jun 14, 2021 (The Expresswire) -- Short Description About Concrete Placing Booms Market : A concrete placing boom is the final element of concrete mixture pipeline transportation system. It is known as a boom concrete pump because it uses a remote-controlled articulating robotic arm (called a boom) to place concrete accurately.

The use of placing booms has been wisely adopted in the Philippines, especially for building reinforced concrete frames on inner city sites where space is at a premium. Previously Saintyol DAWIN Machinery would carry out these contracts using boom pumps with additional pipeline and labour where necessary. Now, however, as a result of demand from customers, we offer a range of static pumps and stationary placing booms complete with a full installation and maintenance service.

The concrete distributor mobile spider concrete placing boom is the terminal equipment for pumping concrete, and its function is to send the pumped concrete to the formwork of the component to be poured through the pipeline.

Before the concrete pump pumps the concrete, clean water should be used to lubricate the pipeline, and the mortar is sent first, and then the concrete is sent to prevent blockage. When starting to pump, the concrete pump should be running at a slow and uniform speed, and then gradually accelerate. At the same time, the pressure of the concrete pump and the working conditions of each system should be observed. After each system is working normally, the pump

Our country China began to explore the development of concrete pumps in the 1970s and introduced technology to manufacture concrete pumps in the 1980s, but the real domestic concrete pump manufacturing began. After more than 20 years of development, China has become the world's largest producer of concrete pumps. In 2007, about 3,000 pump trucks were sold, and about 6,500 trailer pumps were sold. In the same period, the total output of foreign concrete pumps was only about 12,000 units.

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

Concrete piston overall wear, partial wear, ablation wear, strain, and later maintenance methods.

Partial overall wear

1. Main features of overall wear

The radial wear of the lip part of the concrete piston of the concrete pump accessories is basically the same, and the wear marks are relatively uniform.

1. Blockage at the discharge port of the distribution valve
The discharge port is blocked, usually the pumping system is suddenly interrupted, and there is abnormal sound, the equipment has strong vibration, but there is no corresponding vibration in the pipeline.
Remedy: Pour cement slurry into the hopper, and start the pump repeatedly in forward and reverse directions to force the passage to open. If this method is not daring, you can only remove it manually

For the safety of the construction personnel, the safety operation process of the wet spray manipulator is specially made: 1. It is strictly forbidden to use the manipulator as a crane or lifting platform. 2. Do not move the vehicle and operate the manipulator at the same time. After the vehicle reaches the working position, it must be fixed to prevent rolling: use the handbrake, turn off the engine, and place the driving direction joystick in the neutral position.

The traditional spraying support technology of underground space mainly relies on manual operation of spraying machine construction, spraying a certain thickness of concrete to achieve the supporting effect. In the traditional spraying environment, there are a large number of dust particles, noise pollution is also quite serious, and there is a danger of underground collapse, which poses a serious threat to the life and safety of operators in underground space construction.

When using a wet spraying machine, starting is a step. Only a successful start can be used to enter the normal wet spraying process. Therefore, in order to ensure that the concrete wet spraying machine starts successfully, it must be carefully checked after it is started. Let me discuss it for everyone.

A small loader is a heavy-duty mechanical equipment that is often used in construction projects, and it is also one of our more common equipment on the market. The service life and work efficiency of the loader are closely related to the management method of the enterprise. If we are negligent in the maintenance and management of the loader when working with it, it is likely to cause more damage to the equipment in the later period. With the increase in loss,

Shandong loader is one of the more commonly used equipment in construction engineering. The main application range is in road construction and building construction. Sometimes it is also used in hydropower construction, even port construction and mine construction. It can be applied in all aspects. The main work content of this equipment is to load some relatively scattered materials, such as soil or sand. Of course, it can also be used for light excavation operations.

(1) What matters should be paid attention to when entering coarse and fine aggregates?

Coarse aggregate should mainly control its particle size, gradation, grain shape, stone powder content, and mud content. Each vehicle shall undergo a macro inspection, and shall not be unloaded if it is unqualified; in addition, various indicators shall be inspected in batches in accordance with the requirements of the regulations. Fine aggregate should be controlled fineness modulus, mud content

What preparations need to be made to improve the working efficiency of the wet spray machine

In order to ensure the quality of wet spray and improve the efficiency of the wet spray machine, the preparations need to be done before the wet spray machine starts. What kind of preparations need to be done? Next, the author will discuss it for everyone.

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.

Concrete spreaders are divided into manual concrete placing booms and hydraulic concrete placing booms. According to different pouring environments and individual requirements, develop mobile hydraulic concrete placing booms, walking hydraulic placing booms, independent hydraulic placing booms, elevator shaft climbing hydraulic concrete placing booms, floor slabs Jack-up hydraulic distributing placing boom machine, horizontal hydraulic distributing machineplacing booms, etc.

What preparations need to be made to improve the working efficiency of the wet spray machine

The concrete placing boom is mainly composed of a main beam frame, a balance frame, a supporting seat, and a conveying pipeline.

The cleaning of the concrete placing boom machine is very important. It is inevitable that some impurities will be left on the concrete placing boom machine after use, which will cause the concrete placing machine to rust. It’s easy to get started when it’s time, and the concrete placing boom machine also needs to be cleaned.

The pumped concrete should be designed in strict accordance with the regulations, the slump should be strictly controlled, and the following principles should be followed. (1) The ratio of the large particle size of the coarse aggregate to the diameter of the conveying pipe should be: when the pumping height is below 50 m, the

Leakage caused by imperfect sealing of the pipeline will affect the quality of concrete pouring on the one hand, and reduce the slump of the concrete and the loss of pumping pressure on the other hand, which will lead to the blockage of the pipeline. The pipeline joint is not tightly sealed, the pipe clamp is loose or the sealing ring is damaged, causing slurry leakage.

1. Before using the concrete distributor concrete placing boom, the horizontal support at 2 meters of the tower must be adjusted by the screw to make the roller tightly against the four walls.

How to be lifted / jacked-up to the tower hydraulic self-climbing concrete placing booms ?

Daily inspection of concrete placing booms.
Check whether the electrical system is working properly before operation.
Check whether the oil level of the oil tank is lower than half of the oil tank and whether the hydraulic oil is emulsified. Check whether there is leakage of hydraulic components.
Check whether the rotation direction of the oil pump is correct.
Check whether the metal structural parts are cracked, welded, twisted or deformed.

With the development of science and technology, the continuous expansion of the construction field, the continuous improvement of engineering construction quality requirements and the need for environmentally friendly construction, various types of wet spraying machines have emerged, including small concrete wet spraying machines, vehicle-mounted concrete wet spraying machines, and It is suitable for wet spraying concrete equipment such as concrete wet spraying trolley for large-scale projects.

In recent years, the emergence of wet spraying trolleys has solved many inconveniences in the construction process of today's projects, and has improved the efficiency of tunnel construction, coal mine construction, and slope sprayed concrete construction. The progress of China's construction machinery and equipment is largely attributed to the reform and opening up. During this period, front-end technology and foreign-funded enterprises were successively introduced.

1 The main personnel involved in the concrete placing booms installation and disassembly must be familiar with the performance structure and characteristics of the cloth machine, skilled in technology, and have the ability to troubleshoot.
2 In the process of concrete distributor assembly and disassembly, a special person must be responsible for unified command.
3 The placing boom assembly and disassembly site should be cleaned up, and non-workers are prohibited from entering.

It is inevitable that there will be some failures when using backhoe loader to be busy for construction. Today we are explaining what is the reason for the failure of the boom.

The extensive use of backhoe loader not only saves man power and material resources, but also greatly improves work efficiency. Let’s take a look at the working principle of backhoe loader:

The hydraulic concrete placing boom is a kind of terminal equipment used in conjunction with the concrete pump. It is suitable for the construction of high-rise buildings and large-area concrete pouring projects. It can easily and efficiently transport the concrete to the pouring operation point, realize continuous and uniform distribution, and reduce construction costs. Improve the quality of concrete pouring and construction progress.

Concrete pumping equipment

Causes of blocked pipes
With the rapid development of building construction, concrete pumping equipment concrete placing boom has been widely used by construction units. However, in the concrete pouring operation, due to improper use, the phenomenon of equipment pipe blockage occurs from time to time, which not only affects the project progress, but also directly affects the project quality.

In the concrete pumping construction operation, once the pipe blockage occurs, the slight blockage can be dredged by repeated forward and reverse pumps and tapping with a wooden hammer. Serious blockage may need to be removed and replaced. Therefore, prevention of pipe blockage is particularly important.