Background Of Concrete Pump

The concrete pump is a tool for conveying liquid concrete.

For more than half a century, concrete pumps have slowly replaced other methods of conveying liquid concrete. Many different concrete pump designs were developed in the first half of the 20th century, but in 1957 the two-cylinder hydraulic concrete pump was invented by Friedrich Wilhelm Schwing. This design principle is adopted by almost all other manufacturers and is still the standard design worldwide.

The working principle of the pump is that one piston draws liquid concrete from the hopper into the cylinder, while the other piston simultaneously pushes the concrete into the drain pipe. Valve, determine which cylinder is open to concrete hopper, which one is open to the discharge pipe switches over every time the piston reaches the end point and the process continues.

Concrete conveying pumps are particularly important in the revolutionary construction of large high-rise buildings. In the past, people used cranes to hoist large buckets (or hoppers) filled with concrete to where needed. A crane can only lift one bucket at a time, and usually can hold about 2 cubic yards of concrete.

There are many advantages to pumping concrete over this bucket and crane system. The speed of pumping concrete is faster than the bucket lifting, which also means that a constant top and the concrete supply hose can be positioned wherever they need liquid concrete can be poured directly out of the hose needs instead of distributing two cubic yard mound of concrete over the desired area.

The advantages of concrete pumping than lifting it up in a skip by a crane:

The volume of concrete poured per hour is much larger. The crane can lift 12 cubic meters per hour.

Constant flow. Today's concrete pumps can pump concrete as fast as truck mixers. In many cases, it can even be as fast as a two truck mixer.

Reduce waste of working hours. People placing concrete need to wait for the next batch of jumps to be moving or being refilled at the bottom. The person at the bottom just waits for the skip to come back down, while it is moving or unloading at the top. The continuous flow of the concrete pump means less waiting around.

The crane can perform other tasks. The crane can transport steel products, scaffolding, formwork and all other necessary building materials to where needed, instead of hoisting concrete buckets up and down.

Place the concrete directly where you want it. The placement hose can be moved so that the concrete can be placed wherever needed.

Lower labor costs. Because concrete can be placed exactly where it is needed, only a small number of people are needed to distribute the concrete-unlike when a platform dumps the load and then someone needs to move the concrete to the place where it is needed.

Faster setup time.

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When To Use The Cyclone Dust Collector In Front Of The Bag Filter

Cyclone Dust Collector manufacturer will share this article with you.

Cyclone bag filter can reduce the maintenance cost of the bag filter and reduce the downtime

Mechanical dust collectors were once the industry standard for dust collection and air pollution control. However, with increasing attention to air quality, the US Environmental Protection Agency's regulations on dust collection have pushed the manufacturing industry toward higher efficiency capabilities of fabric bag filters, cartridge filters, and other dust collection equipment that use filter media. This change will undoubtedly help reduce the amount of harmful gases emitted into the atmosphere during the manufacturing process. Unfortunately, the use of these fabric filter bag collectors is not without cost. The limitations of filter media (such as humidity, heat, and high particle volume) increase the challenge of successful dust collection. In addition, the cost of replacing filter bags or cartridges, maintenance issues, and expensive pulse jet control for cleaning the filter material will increase. For many people, the solution to these problems is to use a mechanical dust collector before the final stage of filtration.

The mechanical dust collector uses cyclone airflow to separate particles from the airflow. The centrifugal force generated by the rotating air stream throws dust from the air stream towards the wall of the collector. In a typical cyclone, particles hit the wall of the collector and fall on the funnel below to collect. The purified air is discharged through the top of the collector. Although this form of collection can efficiently process large, dense particles, the extremely fine dust lacks the inertia to escape the airflow and is subsequently carried out with clean air.

Filter media dust collectors, such as cloth bag and cartridge filters, use fine filter media to remove dust from the airflow. The dust-laden air is sucked into the collector, where it passes through the filter medium and the particles are intercepted. Before cleaning or replacing the filter, dust will accumulate on the filter. The purified air is discharged from the collector.

The environment involved in many production processes makes it very difficult to rely entirely on plastic bags. A heavy dust load can be a nightmare to maintain the filter media collector.

Processes involving high-temperature exhaust gases can also damage the filter media collector. The high-temperature air discharged from foundries, glass factories, and power plants can burn most filter media used in cloth bag factories. Although high-temperature filter bags and filter cartridges are available, they can be an expensive addition and are still not completely immune to heat. Used as a spark arrester, the cyclone dust collector can be placed before the baghouse to reduce the temperature and particle load of the airflow before it enters the final stage filter.

Although mechanical dust collectors may not be necessary in every application, the benefits of this proven technology are obvious. As emission standards become more stringent and process costs continue to rise, any available advantages should be considered. By comparing the cost of materials, labor, and downtime with the cost of the cyclone separator, you can decide whether you need this equipment.