The peristaltic pump transmits fluid at atmospheric pressure and can transport not only conventional liquids or liquids with particles, but also air. In some cases, a peristaltic pump can also deliver pure solid material. First, the solid tissue must meet several requirements before it can be transported by the peristaltic pump. The first solid to be transported must have a natural seal, that is to say, in a natural distribution state, the solid to be transported is airtight or has a very low leak rate in any part of the hose, which requires that the solid must be It exists in a fine powder state.
The second solid to be transported must have self-lubricating properties. If the friction between the solids to be transported is large, it is easy to form a close accumulation of solids, which causes blockage of the transport pipeline.
Thirdly, since the fluidity of the solid matter is much smaller than that of the conventional liquid, the solid to be transported should also satisfy the condition of low density to minimize the transmission resistance of the solid and avoid the blockage of solid accumulation.
The printer toner used daily is satisfied with the above three conditions, so the peristaltic pump can be applied to the transfer of toner. There are some differences between the use and liquid transport. When transferring toner, the toner must be loose and dry, and there should be no hard blocks; the hose of the peristaltic pump suction and lift should be as short as possible, especially at the suction point, which is conducive to the transmission of toner; the peristaltic pump uses Use a hose with a thick wall and a large inner diameter as far as possible; the running speed of the peristaltic pump should not be too fast, otherwise it will generate a large compressive force to the toner, which is easy to get stuck; the pressure of the pump head of the peristaltic pump is higher than that of the liquid. Time to turn down.