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The safe operation of the trailer mobile spider concrete placing boom machine mainly includes the following points:
1. The end pouring hose must be fastened with a safety rope. It is forbidden to use the end hose with a length of more than 3 meters to cast. The hose must not be inserted into the poured concrete and work strictly in accordance with the scope of the distributor.

Concrete pumps are very common in the current construction. With the high-efficiency construction effect, they are very popular with customers. This article mainly analyzes the operation points of concrete pumps.

1. Different nature: EFI vehicles are equipped with electronically controlled fuel injection systems. It is short for electronically controlled gasoline injection engine. The concrete pump truck is a machine that continuously transports concrete along the pipeline using pressure, and is composed of a pump body and a delivery pipe.

1. The latest composite three-generation delivery pipe of the pump truck, the inner layer is high-strength and wear-resistant, the life of the straight pipe is up to 50,000 square meters, and the life of the bent pipe is up to 20,000 square meters.
2. The service life of the concrete piston made with special reinforcement materials and wear-resistant special answer technology is up to 30,000 square meters

The unsuitable performance is firstly that the slump of fresh concrete is small and the expansion is small, but the amount of water reducing agent is already quite large at this time. The popular saying is "unopenable"; secondly, the slump loss is large, Sometimes there is even false setting, that is, the cement slurry is very thin at the beginning of the mixing, but it quickly sticks and dries, and the workability of the concrete after the machine is very poor;

The third step of the adaptability test is to find out the saturation blending value of the superplasticizer used for this cement. If two or more superplasticizers are mixed, the cement paste is passed through the total amount of the mixture. Test to find the saturation dosage point. The closer the amount of superplasticizer is to the saturated content of the cement, the easier it is to obtain good adaptability.

The self-loading concrete mixer with automatic lubrication system can effectively reduce vehicle wear and fuel consumption! The electronic industry, which has its own precision, says that strictly controlling the proportion of ingredients, you can learn to drive in 2 to 3 hours, minimizing the threshold for workers to operate.

Our self-developed self-loading mixer truck can be completed in 12 minutes from feeding to discharging! The electronic industry with precision claims that the proportion of ingredients is strictly controlled, the mixer truck is anti-rolling, and the anti-falling object is suitable for operation in any venue. The mixing bucket can rotate 270 degrees and can discharge at a maximum position of 3.1 meters around the vehicle

The self-loading mixer is a concrete mixer that can load concrete materials such as stones, yellow sand, cement, water into the mixing tank. The automatic loading mixer is generally a small mixer, with a mixing volume of 2 to 6 cubic meters The automatic loading mixer can automatically load. The vehicle itself has a bucket with the same function as the loader, which can be loaded with concrete raw materials.

There are some wearing parts of the concrete delivery pump that need to be regularly inspected for wear to ensure that the equipment can be used and operated better. This article will introduce to you which wear parts of the concrete pump need to be checked for wear:

The use of concrete delivery pumps has been used in more and more constructions, especially in the construction of new countryside. It is popular because of its small footprint, flexibility and efficiency. So how to buy cost-effective concrete pump?

In addition to completing daily tasks, concrete pump trucks should also have the habit of maintaining on time. When the pump truck is performing concrete pouring operations, if the repair and maintenance are not in place, it will cause hidden safety hazards.

When the inner wall of the pump cylinder of the concrete pump truck is damaged, it should be taken out for repair immediately, or it should be turned around. In order to facilitate maintenance and replacement of the concrete cylinder, we can set a movable door cover at the bottom of the concrete hopper. The opening and closing of this movable door cover can be completed by the movement of the oil cylinder. At the same time, the concrete cylinder body can also be pulled out from this opening.

In the current process of dike construction, the workload of long-distance earth adjustment operations is increasing. Therefore, many people think that the efficiency of the underground wheel loader scraper is low, and the scraper is useless. What role does the scraper have in the actual project?

Skilled operation of the wheel loader for loading and unloading activities can not only clarify the various mechanical functions, but more importantly, it is necessary to skillfully operate the machinery and rely on experience or use specifications to reduce the loss of equipment during the loading and unloading process. The relevant operation instructions are as follows:

The use efficiency and service life of the mining underground wheel loader are closely related to the management method of the using enterprise. Once neglected management will lead to an increase in the abnormal loss of equipment, resulting in an increase in the incidence of failure and even burying hidden safety hazards. So, what are the undesirable status quo in the use of current mining loaders?

The first is to load the material, get the material into the mixing tank, the mixing tank is driven by the motor to operate, and the mixed concrete is poured into the material bucket. The material in the hopper must enter the conveying cylinder. The conveying system is powered by the hydraulic system. The conveying cylinder is pushed through the oil cylinder, and the concrete is sucked and sent one by one. Concrete mixing tractor is composed of concrete mixing and pumping professional equipment.

In the hot summer, the outdoor temperature on the construction site often exceeds 40 degrees. The long-term construction will cause the engine of the pump truck to heat up and the temperature of the hydraulic oil will rise, and the hot heat will further exacerbate the temperature of the engine and the hydraulic oil. So, what measures should we take to maintain the pump truck and its engine in the hot summer?

The small concrete pumping pressure value has two values of high pressure and low pressure. When the main hydraulic cylinder is driven without a rod cavity, the corresponding outlet pressure is high pressure; when the small concrete pump main hydraulic cylinder is driven by a rod cavity, the corresponding outlet pressure is low pressure.

The function of fine stone concrete pump on cement in the pumping process: The pumping pressure of concrete is transmitted by the liquid phase substance in it. The liquid phase material carries the solid phase material and moves together to complete the pumping. There are two aspects of the role of cement. One is the cementation effect, which enables the concrete to maintain the state of solid phase material surrounded by liquid phase material during pumping;

With the continuous progress of the production technology of wet concrete spraying machinery and related materials and equipment, wet sprayed concrete will be widely used as a mature construction method.
1. Overview of sprayed concrete technology
1.1 Sprayed concrete process principle and characteristics

Technical points of wet spraying operation
(1) When concrete is mixed in the order of sand → crushed stone → cement → water, full-automatic metering force mixer is used for mixing, and the construction ingredients are strictly operated according to the mixing ratio; after adding the compound pumping agent, the mixing is performed for more than 2 minutes. Over 4 minutes, so as not to affect the quality of the concrete.

First of all, the conveying pipe of the concrete conveying pump needs to be piped according to the characteristics of the project and the construction site and the concrete pouring scheme. Minimize the use of bends and hoses. The laying of the conveying pipe should follow safe construction, which is convenient for cleaning the pipeline, troubleshooting and repair in principle.

With the development of the construction industry in northern China in recent years, floor heating has become a necessary facility for building construction. This also greatly promotes the use of fine stone concrete pumps. The fine stone concrete pump can not only improve work efficiency, but also help reduce the labor intensity of workers. People use fine stone concrete pumps at the same time as they start to rely on the fine stone concrete pumps. If the fine stone concrete pumps fail during

"Concrete delivery pump" and "concrete delivery pump truck" are both concrete delivery machinery. They are used in the same way, except that the former needs to be transported by a truck and requires additional support pipes, while the latter is a locomotive body with freely extending booms, no pipes are needed. And the latter is much more expensive than the former, the former needs hundreds of thousands, and the latter needs millions.

How to operate a hydraulic concrete wet spray machine? What are the precautions for safe operation of hydraulic concrete wet sprayer? The Saintyol DAWIN Machinery wet concrete spray machine manufacturer introduces the safe operating rules of hydraulic concrete wet spray machine. I hope it will be helpful for everyone to operate the wet spray machine.

First, the preparation work of the hydraulic wet concrete spraying machine before starting
1. First, fix the hydraulic wet concrete spraying machine on a solid foundation. The spraying pipe must be reinforced and the pipeline must be installed properly without leakage.
2. Connect the three-phase power supply and check the lubricating oil level.

The towing concrete mixing pump is a small concrete conveying pump that integrates loading, mixing, and high-pressure pumping with a fully automated construction operating system. The pump is simple to operate, stable in performance and easy to move.