Industry News

The strict use requirements of mining wet concrete spraying machines need to be known in order to ensure the safety of users and the service life of the machine.

Paying attention to details is the principle we must abide by when we do things. This is especially true when driving a self-loading concrete mixer. The details of driving a self-loading concrete mixer are:

Why is the small automatic self loading concrete mixer so hot now? It definitely has its advantages? I don't know how much you know about the small automatic feeding mixer. Let's talk about its advantages. Let's take a look.

The automatic self loading concrete mixer has multiple functions, making the entire construction easier. It is also inevitable that there will be problems in the construction of the automatic loading mixer, such as the loading and unloading is not smooth, there is a phenomenon of material blocking, how to deal with these situations? Let’s take a look at what the auto-feeding mixer truck manufacturers say?

We concrete spraying machine is a pumping wet spraying machine, which has the characteristics of high pumping pressure, long conveying distance, low resilience, high construction efficiency, and continuous adjustment of the shotcrete amount and the addition amount of accelerator.

Wet shotcreting machine is a kind of wet shotcreting machine used in the mine field. It is an anchor and shotcrete supporting machine with good comprehensive performance at home and abroad, such as reducing dust, reducing rebound, and saving materials. It is used in mines, culverts, and construction foundation pits. It is widely used in fields such as river slope protection. It is a product with strong comprehensive performance and a very important kind of mining equipment.

At present, small wet concrete spray trucks are widely used in many fields. There are many manufacturers of small wet spray carts with different prices. What are the factors affecting the price of small wet spray carts? Among them, the quality of the accessories is very large, so the quality of the accessories of the small wet spray cart directly affects the price of the whole machine.

Wet concrete spraying machine is a kind of vegetation greening mechanical equipment, mainly used for highway (railway) side slope greening, side slope protection, mountain treatment, mine greening, desert treatment, waste landfill treatment and other projects.

Generally speaking, a wet concrete spraying machine manipulator refers to the simultaneous installation of a concrete pump, a manipulator, an additive metering system, an air delivery system, and a multi-degree-of-freedom robot on a self-propelled chassis vehicle. , And mix the prefabricated wet concrete according to a certain formula to spray the material on the mechanical equipment of the designated working surface.

First of all, with the widespread use of small wheel loaders, some problems have slowly appeared. Friends who are concerned about us should know that daily maintenance is a very important operation step. Sometimes with the hot weather, loaders If you are outside for a long time, it is easy to burst. So in order for this phenomenon to happen, the editor summarized a few requirements for friends, then we will not talk nonsense, and interested friends will continue to Look down.

The physical condition of the automatic self loading concrete mixer truck during the divergence period is very different. Here I divide the life cycle of the concrete mixer truck into five stages: peak period, Microsoft period, menopause, late life and risk period. In these five stages, the maintenance and repair of concrete mixer trucks are also different in focus.

. After the self-loading mixer truck has finished unloading at the construction site, the hose provided with the self-feeding mixer truck should be used to flush the hopper, discharge hopper, discharge chute, etc., to remove the dirt that adheres to the body. Mud and concrete. On the way back to the mixing station, 150---200L of water should be poured into the mixing drum to clean the concrete residues on the wall and blades.

The working environment of the automatic self loading concrete mixer is relatively bad, and the user does not pay attention to daily maintenance, which has caused some unnecessary failures and economic losses. I hope that the daily use of the majority of automatic self loading concrete mixer truck users will be introduced through the editor below. And maintenance play some role.

The difference between self-loading concrete mixer and forced concrete mixer is:
1. The mixing tank works differently:
In the self-loading concrete mixer, the mixing drum rotates at an appropriate speed; while the mixing drum of the forced mixer is fixed.
2. Different mixing uses:
Self-loading concrete mixers are mostly used to mix general plastic concrete, and mandatory mixers are mostly used to mix dry hard concrete and lightweight aggregate concrete.

When using an automatic loading mixer truck to load concrete, the rotation speed of the mixing drum is 2-10 rpm. During transportation, ensure that the speed of the mixing tank on the horizontal road is 2-3 rpm. If the slope is greater than 50, when the road is uneven or shakes violently, stop mixing and spinning, and wait for the road to improve before mixing and spinning.

The quality of the tunnel depends on the quality of the process. The quality of the process depends on the quality of the excavation, initial support and drainage and drainage, etc. The better control of the initial support and drainage and drainage can strengthen supervision, so the focus is on the quality of the excavation, which depends on the quality of the excavation The quality of drilling and blasting means that in theory, the quality of the initial support without over-excavation

1. The operating lever is convenient for operation, and the touch screen adds water quantitatively.

2. The operation is sensitive and convenient, and the quantitative addition of water on the touch screen makes the stirring more uniform and more in line with the specifications.

Concrete slump mainly refers to the plasticizing performance and pump ability of concrete. The factors that affect the concrete slump mainly include gradation change, water content, weighing deviation of the scale, and the amount of admixture, which are easily overlooked. Cement temperature, etc. Slump refers to the workability of concrete, specifically to ensure the normal progress of construction, including the water retention, fluidity and cohesion of concrete.

(1) When the concrete strength level is less than C50, the slump should be less than 180 mm, and when the strength level is greater than C50, the slump should be greater than 180 mm; (2) When the specified concrete slump is less than 40 mm, the allowable deviation is ±10 Mm; when the specified concrete slump is 50~90 mm, the allowable deviation is ±20 mm; when the specified concrete slump is greater than 100 mm, the allowable deviation is ±30 mm;

Concrete refers to a general term for engineering composite materials in which aggregates are cemented together by cementitious materials, and is widely used in civil engineering. Because it consists of solid phase, liquid phase, and gas phase, some bubbles will inevitably be produced after the concrete is poured. But the existence of these bubbles will not only affect the appearance of the project, but more importantly, it will have some hidden risks.

For the treatment measures of concrete bubbles, select the appropriate vibrating equipment, and determine the appropriate vibrating time, vibrating radius and frequency. At the same time, vibrate according to the method of "fast insertion, slow pumping, up and down drawing", the vibrating rod should be straight up Quickly insert and pull slowly, no leakage is allowed. When vibrating, it should twitch up and down.

When the average day and night temperature is lower than 5 ℃ or the low temperature is lower than -3 ℃, it should be treated as winter construction. When the ambient temperature is lower than 5 ℃, it is forbidden to sprinkle the concrete surface for curing. At this time, the curing liquid can be sprayed on the concrete surface, and appropriate heat preservation measures should be taken.

What is hydraulic concrete? In order to achieve the purpose of flood control, irrigation, power generation, water supply, shipping, etc., it is usually necessary to build different types of buildings for water blocking, flood discharge, water delivery, sand discharge, etc. These buildings are called hydraulic structures.

From the long winter twelfth lunar month to decisively press the "pause button" for the prevention and control of the spread of the new crown epidemic, to the early spring of February to grasp the epidemic prevention and control and the economic development and start the "fast forward button" to resume production in time, concrete and cement All enterprises and employees in the product industry have experienced this difficult and unforgettable process.

High-tech projects are the focus of local governments to support resumption of work. Since February, more than 50 production bases of Jianhua Building Materials Group have resumed production and resumed production. On the premise of doing a good job in epidemic prevention and control, each subsidiary accelerated production and guaranteed transportation, helped the major projects in various regions to resume work smoothly, and recaptured the delayed construction period .

At present, concrete pumps have been widely used in the construction of concrete projects. By adopting the concrete delivery method, the construction party can not only reduce costs, but also save construction time and standardize the construction site. However, some problems will inevitably occur during the use process, such as the flow interruption during the pumping process, so why does the concrete delivery pump have a flow interruption? What harm will it cause?

According to the various data provided by the concrete mixing station, I summarized some experiences and lessons in the application of pumping commercial concrete to block pumps and pipes, and hope to help you concrete friends. The characteristics of pumped concrete are uniform material quality, stable quality, and fast feed speed. It can continuously complete vertical and horizontal transportation at one time, with high production efficiency and labor saving. Because the concrete delivery pump

Machine-made sandstone powder (referred to as powder below 75μm), reaching 3312%. In order to meet the particle grading requirements, the crushed stone plant will wash the machine-made sand with water, and the powder will be washed away by water to make the fine particles 01315mm sieve pass the sieve residual value 5%. At first, we did not pay enough attention to this situation. The average particle size of the sand increased by 2%, but the pumpability