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Pneumatic single pad printer
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Sewage and wastewater are mixed to say that they are dirty water to be discarded, but the degree of pollution is different. Among them, the nature and concentration of pollutants are random, and there is no standard to refer to. Only by gaining experience through practice can we grasp the laws of nature and the laws of sewage change.
There are three categories of modern treatment methods: physical method 2, chemical method 2, physical chemical method 3, biological method 3; The degree of treatment is divided into three levels: 1. The degree of treatment; after the suspension is filtered, the particles, colloids and organic solutes decompose 2,3. Deeper removal of residues.
The nature and type of sewage are different, and corresponding methods can be taken, but chemical and physical methods are the closest to users with small discharges: first, the colloid rapidly chemically decomposes to produce flocs dispersed in water, followed by the physical changes of adsorption between flocs, forming particles and precipitation, separating the pollutants in the water.
Second, the provisions:
Pollutants come from a variety of components, solids, turbidity, chromaticity, pH value, etc., which constitute the concentration level of sewage. High-concentration sewage cannot be treated even if more drugs are paid due to the lack of necessary space, but it increases the saturation of substances. Therefore, in the pretreatment test, the high concentration and low concentration are first fully adjusted to make the treatment mechanism meet the best conditions, which not only effectively but also reduces the consumption of chemicals.
Example 1: With a large septic tank, the late start of centralized sewage and sewage collection together with light, nature and water have been adjusted.
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common problem
Q
What are the characteristics of cigarette box three-dimensional packaging machine?
A
1. There is no need to adjust the height of the countertops on both sides of the machine when changing the mold, and there is no need to disassemble and assemble the discharge chain or put the hopper, which shortens the four-hour mold replacement time of the traditional machine to only 30 minutes.
2. Adopting a new dual insurance mechanism, the machine does not need to be shut down when it is not running synchronously, nor will it damage other parts.
3. The original one-way hand crank device prevents the machine from shaking in reverse, and the handwheel does not rotate during operation, making the operator safer.
4. The new double rotary film cutting knife can ensure that the machine can be used continuously for many years without a sharpening port, overcoming the defect that the traditional fixed single rotary film cutting blade is easy to wear.
Q
Automatic poker transparent film three-dimensional packaging machine packaging products?
A
Automatic poker transparent film three-dimensional packaging machine is mainly suitable for bulk poker, compressed biscuits, sachima, stickers, sticky notes, wafer biscuits and other bulk or multi-object collection of three-dimensional packaging.
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