Coal polesIn the early stages, the user can't use a stick of adhesive pressure. Later on, the technologists lengthened the spiral and thickened the leaves so that they could crush coal powder into hard bars by three times the pressure。
Why can't the adhesive program work
The early development of coal-powder rods is premature, and the rods must be made with chemical materials for adhesives, and the powder is squeezed into sticks. The adhesives, however, release the smell of stingling during subsequent combustion, with a high number of complaints from users. The idea of adhesive by mixing foreign chemicals into coal powder has proved to be unfeasible at the root, and the only way forward is to make structural improvements in the formative equipment。
At the heart of the problem lies the natural lack of sufficient synergy between the coal-powder particles, the adhesive merely tossing the surface of the particles and dispersing as soon as the temperature is burned down. What really needs to be addressed is that the coal powder is pressed under high pressure to be sufficiently condensed, stuck by the physical bites and frictions between particles, and not dependent on any extra matter, so that the stick is solid and burned clean。
Key changes in spiral-pressure modification
After multiple rounds of exploration and testing, technicians lengthened the spiral inside the charcoal powder-forming machine while increasing the thickness of the leaves. These two changes increased the internal pressure of the spiral at least three times, the powder was squeezed more tightly, and the density and intensity of the squeezed coal bar became apparent, and the entire bar was intact without any additives。
The logic behind the modification is straightforward: the greater the pressure inside the spiral, the closer the coal powder particles, the greater the friction and van der waals between the particles. When the pressure is high enough, the powder itself can bite each other into a complete rod, without adding any chemical glue to the whole formation, eliminating the problem of odor from the source。
All kinds of coal can get on the plane
Our coal resources are not only rich but also diverse. Similar powered coal, smoked coal from the sun springs, coke from the sea, wood coal from xinjiang, lignite from silinhot, and a variety of samples of coal from local customers when they come to test the machine. However, the actual test results were consistent: no additives are needed for these coals in the rod maker, and when pressure is squeezed, the rods are properly formed。
Many users fear that their own coal powder will not stick, but rather ignores the core principle of a coal rod to squeeze out a high-pressure rod. Coal powder enters the spiral cavity under great pressure and is highly integrated between particles, so that as long as the particle size is below 3 mm and the water content is properly adjusted, any coal species can be pressured into a qualified coal bar, and the equipment itself solves the problem of adhesion。
Operational steps and daily attention
Coal rods are not really complicated, but they must be carefully read first. Before opening, check on each item: whether the electrical circuits are fully connected, whether the screws are loose or loose, and are tightened immediately; full lubricating oil on the rotary bearings; installation of current meters to adjust the water content of the materials and raw materials in real time, based on current readings, to avoid overloading of the electric machines。
The input is operated for two to three seconds without any unusual sound before it is officially activated. The particle size of the raw material shall be less than 3 mm, and the luminous plaster shall be applied for 24 hours with water. Once the piping is blocked, it is strictly forbidden to stab a metal bar with wood or bamboo. The sequence of the shutdowns is to stop the material, wait for the powder to be squeezed in the tank before the power is shut down, and to unload the head and reload the spare。
What's with the four-storey spiral wheels
The fuselage contains between four and five spiral wheels, with a different division of labour. The first, which is responsible for the transmission of the material, is to be carried forward from the feed mouth; the second, which is responsible for the pressure material, begins to apply compression to the powder; the third, which is responsible for the clinker, which is to be fully mixed under high pressure; and the fourth, which guarantees the speed and final strength of the rod, which is to be combined with the complete formation process。
In the course of production, there is normal wear and tear in the leaves and inner urchins as long as the working electricity flow is within normal limits. When the wear is excessive, the spiral force is clearly inadequate and the quality and speed of the blow fall. The normal leaves are suspended once in a row of four to eight hours, with severe wear and tear, short or replaced in a timely manner, and only if the thrust is insufficient。
How do you turn the leaves
The length of the leaves is not fixed and is adjusted flexibly according to the dry and wet nature of the coal and the season. In the summer, the coal is dry with less moisture and the leaves are duly increased; in the rainy rain, the coal is wet and the leaves are duly reduced. The eyes of the aircraft are long and the eyes are shorter. Powder coal grains are significantly increased and finer. The amount of impurities is less and less, the amount of impurities is shorter, the amount of leaves is longer and the amount of inputs is reduced when the amount of liquid is less。
When the inner urchin is worn, the second and fourth leaves are replaced by the first, the entire leaves are shortened and the space between the two and four leaves is increased. In exceptional circumstances, it is also possible to fine-tune the third leaf in a later location in order to ensure the quality of the stick, so as to balance the quality and speed of the rod. The ability to adjust leaves is at the core of the coal rod operation, and to master it is a real skill。
What kind of coal did you use to test it? Can't you press the bar without the glue? Welcome to the comment section about your trial experience, and to those friends with coal rods who feel useful for reference。
