Industry News

(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.

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.

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.

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.

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.

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

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.

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.

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.

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

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.

Hello everyone, I am Saintyol DAWIN HY3.5 automatic self loading concrete mixer truck, don't think I am just a small mixer, my skills are great! I can produce concrete on my own because of the proper flow of the "Saintyol DAWIN Family" concrete mixer truck. Let me introduce myself to you!

Everyone who has gone through hardships was once a heroic boy wish. In the future, you can realize the dream of the past in every journey. The Saintyol DAWIN self-feeding mixer will accompany you on every journey and pay tribute to you who are full of ambitions!

The high temperature problem of the automatic self loading concrete mixer is very harmful. It needs to be noted, especially in summer, many machines are prone to high temperature problems. How to avoid the high temperature hazard of the automatic feeding mixer? The editor summarizes the following points:

Most of the small concrete pumps are in the form of double cylinders. Its two hydraulic cylinders drive the two conveying cylinder pistons to work alternately, which not only makes the conveying of concrete more stable and continuous, but also greatly increases the displacement. Its working principle varies according to the distribution valve and control mode, but the main difference is still reflected in the realization of the reversing action.

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.

The truck for pouring concrete on the building is called a concrete pump truck.

Truck mounted wet spraying machine generally use hydraulic drive equipment for concrete conveying. The hydraulic drive equipment of wet spray trucks generally uses hydraulic cylinders to drive plunger concrete pumps to transport concrete. This type of transportation can be seen everywhere on construction sites, especially suitable for large-scale engineering construction, because the hydraulic system can be greatly improved

Common concrete spraying machines are mainly divided into two categories: dry concrete spraying machines and wet concrete spraying machines. Compared with dry concrete spraying machine, wet concrete spraying machine has low dust concentration, low rebound rate and high strength of sprayed concrete, which greatly saves costs and effectively improves the construction environment.

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.