In dry mix mortar production line , dry mix mortar products are packaged into packaged and bulk products. Bagged products can be packaged in packaging machines, and bulk products can be placed in dedicated bulk silos or dedicated bulk transport tankers. At present, in dry mix mortar production line, there are generally three types of packaging machines for powder products: a blown charge packaging machine, a gas chamber type packaging machine, and a worm wheel type packaging machine. Blowing and charging packaging machines are cheaper, but the packaging speed is slower. Generally, they are not used. They are only used for the packaging of liquid-like, very loose and finely dispersed products. They are not suitable for packaging of other powdery products. Air chamber type packaging and compressed air are used as power, but the principle of action and effectiveness are different. For blown charge, compressed air is used to make the packaged product fluid, while the product is loaded into the bag from the weight of the product itself in the silo. In the gas chamber type packaging package, the product input bag is driven by compressed air, and the general air chamber pressure is 0.5 atmospheres, which is the most effective forced input method. Air chamber charging is characterized by high speed and a wide range of applications. However, it also has the disadvantage that a large amount of compressed air is required, and that the air entering the package together with the product tends to cause the package to burst. In the dry mix mortar production line, the packaging machine often needs to adopt a jacketed charging tube or a high-permeability packaging bag or a common perforated kraft paper bag, and an effective vacuum system is required to extrude dusty air from the packaging bag, so the packaging machine is There are also fewer applications in dry mix mortar plants. The worm-wheel type charging and packaging machine uses a mechanical method to put the product into the bag, which is characterized by a fast charging speed, a small air content of the product, and a small volume occupied by the machine itself. There are two types of worm-type charging and packaging machines: the horizontal placement of the shaft and the vertical placement of the shaft. The worm-wheel type charging and packaging machine with horizontal axis is easy to use and reliable, and it is easy to enter the worm wheel through the upper side wall; the worm-wheel type packaging machine with vertical axis has a large hopper cross section, which is easy to feed but also Easy to leak.
In the dry mix mortar production line, the metering accuracy of the packaging machine has different requirements according to different products, and the higher the cost, the higher the metering accuracy requirement. There are two types of packaging machine products: gross weight and net weight. There are currently two types of gauges on packaging machines: mechanical gauges and electronic gauges. A mechanical gauge is a kind of steelyard that uses a moving scale hammer to achieve the required weight. It is slow in metering, low in efficiency, and rarely used. The electronic meter converts the mechanical load into an electrical signal, and displays the weighed weight on the display by amplifying the electrical signal and digitally converting. Currently, more advanced electronic meters have a memory, and the required weight value is input in advance, and when the value is reached on the scale, a signal is sent to automatically close the loading gate.