Summary of knowledge of concrete mixing plant

Summary of knowledge of concrete mixing plant
1, Introduction to concrete
Concrete is cement for cementing materials, sand and other materials will be solidified from a kind of artificial building materials, hardened with the nature of stone, referred to as concrete.
The types and performance of the concrete required for different construction projects are very different. When the production is done, if the performance and use of the concrete produced are understood, the equipment can be adjusted accordingly to improve the quality of the concrete mix and Not prone to error.
One of the main signs of the performance of concrete is its strength, is a side length of 150mm square test block after 28d standard maintenance, measured by compression test, the commonly used strength range is 10-60Mpa, the general strength level C20 -C60 said.
The workability of the fresh concrete, or called the workability, refers to whether the concrete mixture is easy to construct and operate, and obtain uniform quality, compact performance, is the concrete process performance collectively. Including the mobility, cohesion and water retention of the three aspects of the meaning. Liquidity is the corner that is easy to flow and is easy to fill the casting template. Cohesion refers to the structural properties of concrete is uniform and stable, and is less prone to delamination and segregation. Water retention is not prone to bleeding.
The greatest impact on the construction of concrete is the mobility. The fluidity of the plastic concrete is expressed in terms of slump, which is generally in the range of 10 to 200 mm. The greater the value, the stronger its liquidity. Dry hard concrete in Weibo consistency, the range is generally 5-35s. The higher the value, the higher the dry hardness of the concrete.
The workability of the concrete is determined by the engineering structure and the construction method. Now the construction site to use more fluid or large flow of concrete, only the use of precast concrete concrete dry hard concrete.
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Advantages of concrete mixing plant

Advantages of concrete mixing plant
1. Model is clear; hzs series of concrete mixing station model is very clear, from the hzs25 concrete mixing plant, hzs35 concrete mixing plant to hzs180 type concrete mixing plant, hzs240 concrete mixing plant range. Each model of the hzs series of concrete mixing station in the figures represent its theoretical productivity, at a glance, the customer can choose according to their own actual situation.
2. Simple and convenient operation: hzs series of concrete mixing station is simple and convenient operation, whether it is large-scale concrete mixing plant, or small concrete mixing stations are used automatic control system, although the small model concrete mixing station can use centralized control system, but the operation The same is very simple, convenient, save manpower and material resources.
3. Excellent quality: No matter which model of the hzs series of concrete mixing stations are equipped with high-quality JS series of concrete mixer and PLD series of concrete batching machine, production of good quality, accurate ingredients, other equipment can be equipped according to customer needs, selectivity Strong, to the greatest extent possible to meet customer needs.
4. Accurate and reliable measurement; the accuracy of raw materials measurement is related to the quality of finished concrete, compared to the artificial mixing, hzs series of concrete mixing station measurement methods are electronic sensor weight measurement, with high precision, reliable, easy maintenance And so on, in the accidental occurrence of weighing tolerance, the part can be deducted in the scale bucket, to ensure accurate and reliable measurement of raw materials.
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How to reduce the failure rate of concrete mixing plant

1, to strengthen the daily maintenance of the motor
When working with the motor, pay attention to the working environment, do not be in a very bumpy state, to prevent damage to the motor or to reduce the service life. But also to conduct a visual inspection, the fan is working properly, whether there is abnormal vibration, coupling connection is reliable, whether the base fixed fastening, bearing work is normal (listening to sound), the temperature is normal (infrared thermometer), current Normal (clamp ammeter), another winding motor must also check the carbon brush and slip ring. If a particular aspect of the abnormal, it is necessary to hurry to repair the motor, otherwise, after the serious situation can not deal with their own.
2, concrete mixing plant operator skills considerations
Small concrete mixing plant on the operation, maintenance personnel requirements are lower. Large-scale concrete mixing plant structure is complex, high degree of automation, the operation, maintenance personnel requirements are higher.
3, the concrete mixing station operator to the concrete mixing station equipment parts often with the appropriate adjustment of the gap.
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Stabilization of soil mixing plant to improve the efficiency

Stable soil mixing plant production efficiency determines the level of the progress of the entire project. Mixing quality is also related to the quality of the project, in order to ensure the quality of mixing and mixing efficiency, you can use the excavator overturned to balance the moisture content of raw materials. As the black ash, white ash water content determined by a number of uncertain factors, especially the white ash, digestion quality, their quality, whether the sieves affect the use of lime efficiency. Therefore, before use, to ensure that the most suitable gray construction of water content, to grasp the appropriate stacking time. After the stacking, if too wet, you can use the excavator to roll several times, until the appropriate water content, both to ensure the construction efficiency, but also to ensure that the ash dose. It is also important to locate the stable soil mixing station. Especially whether the transport within the area is also related to the production efficiency. Because in the production, not only to take into account the efficiency of the loader feeding, but also consider the transport vehicles do not stop jamming, and feed vehicles do not affect the construction site. In addition, the loader should take the material on the silo sieve and then pick up the material, so that it can not feed the material too late, otherwise it will break the material. Therefore, the improvement of the efficiency of the stabilized soil mixing station is composed of many factors, the need for man-machine and external factors, internal factors in close cooperation with all aspects.
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Reasonable Arrangement of Production Line of Concrete Mixing Plant

Concrete mixing plant from the actual location to rational planning and layout, to enhance the production line system reasonable and efficient. This article on the mixing station production line layout to make recommendations for reference.

1. The positioning site of the production line

In the factory area to determine the location of the production line, according to the traffic road Huitong principle, the road can not have a broken road. That is, there are three rows of parking spaces in the mixing floor, the left and right sides of the powder parking spaces and channels, mixing tower behind the powder parking spaces and channels. Another aggregate around the warehouse also need to be smooth, in order to facilitate equipment repair. Plant road after the cycle, the vehicle traffic smoothly, to avoid the chaos caused by foreign vehicles chaos traffic jam phenomenon.

2. Other equipment layout of the production line

① weighbridge. Weighbridge is a high utilization of concrete mixing plant equipment, the material should be used in and out. There are two types of weighbridge in the production line, one is the ground type, one is the underground type. Regardless of the kind of choice, need to set the barrier next to the parcels, the election on the type of side and side by side better.

② car wash site. Combined with waste water, waste concrete recycling, to achieve the "zero emissions" purposes, the entire recycling system can not be arranged too far away from the main building, or set up a transfer pool will bring control and clean up the difficulties, the number of vehicles according to the number of vehicles Or above.

③ transformer power distribution room. Distribution room in the mixing station in the production line layout is the first ventilation and the surrounding clean, then the distance, distance from the power cable constraints, the layout of the main building when the direction of the better.

Concrete mixing plant production line reasonable arrangement allows the mixing station to bid farewell to dirty, truly energy-saving control, the mixing station business is also a development opportunity.
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Concrete mixing station encountered unexpected solution

1, cement, fly ash, slag transported to the wrong storage tank, should be the most unfortunate situation. Such as low-grade cement hit high-grade cans, and perhaps half of the tank in the high-grade cement, can only be used with low-grade cement. Experiments confirmed that the powder in the tank movement is unstable, can not control the next sub-order.
2, excessive admixture. Should be promptly with the admixture factory contact, admixture plant according to product function, help out with a processing plan.
3, mistakenly use fly ash or slag as cement. Can not be used. If conditional, recyclable use.
4, concrete to the construction site after the consistency is small, can not pump. Low-grade can be mixed with the proportion of cement slurry added to the concrete side. High-grade can be added in proportion to the water, drop the use of labels.
The above is that the concrete mixing plant may be a problem, I hope to help you.

Selection of stable soil mixing station supporting equipment standards

Stable soil mixing station equipment in China in recent years the extensive application of China's road construction industry to improve the overall level. This year the country has developed a thirteen five plan, with the beginning of the first five-year plan, the state of the construction projects in various regions to increase investment. Market demand for stable soil mixing station equipment is also rising. But the investment and mixing station equipment, customer groups on the working principle of the equipment and performance do not understand, will cause the purchase of the mixing station equipment does not match the standard. Then in the choice of mixing station equipment should pay attention to what matters?

First, in the choice of stable soil mixing station equipment, we must be based on the construction project information analysis, to select the appropriate power of the mixing station equipment.

Second, we choose to stabilize the soil mixing station equipment, we must carefully understand the equipment to the work performance data, in order to ensure that the mixing station between the various equipment matching.

Third, the stability of the mixing station equipment, high efficiency, is the source and the perfect system between the various systems, so the choice of matching mixing station equipment is also very critical.

Fourth, the stability of the soil mixing station equipment in the installation and commissioning, be sure to carefully check the equipment between each part is installed in place, so as to avoid the equipment in the debugging process of the phenomenon of damage.

Selection of supporting the stable soil mixing station equipment, is to ensure the smooth start of the project premise. So we choose the equipment, we must pay attention to the supporting performance of equipment. Thus ensuring that we invest in the benefits of mixing station equipment.
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