What is the impact on the screening effect of the circular vibrating screen
What factors determine the screening effect of circular vibrating screen? In the production process of vibrating screen, the phenomenon of enrichment often occurs, that is, the screen is piled up, the effective screening area is reduced, and the process efficiency is reduced, which is mainly related to the material type and particle, material loose density, material particle size, material particle composition, etc.
Different types of materials processed by circular vibrating screen have different physical characteristics. The types of materials can be divided into two categories: brittle materials and viscous materials. Viscous materials are easy to form dense adhesion of materials, block the screen, and reduce the permeability, while brittle materials are not, and the process efficiency can be guaranteed. The particle shape of the material will also affect its screening rate. The cubic open and spherical materials are easy to pass through the screen, while the flaky materials are easy to get stuck in the screen hole, which reduces the screening process efficiency.
The material particles processed by the circular vibrating screen are basically layered and screened according to the size of the particle volume, that is, the loose density of the material directly affects the processing capacity of the vibrating screen. Bulk materials with large bulk density are easy to pass through the screen, and the screening efficiency is also high; On the contrary, materials with small bulk density and powder materials are not easy to pass through the screen, and the screening efficiency is also low.
The water content of the materials processed by the circular vibrating screen is too high, which is easy to form adhesion. During the vibration process, the blocks squeeze each other to make the adhesion group more dense, which increases the resistance of material movement, and makes it difficult to layer and sift the material particles; Material adhesion also reduces the size of the sieve hole, blocks the sieve hole, reduces the effective screening area, and sometimes even fails to screen. Therefore, when the water content of the material is too high, the screening process should consider some remedial measures, such as drying the material.
The screening probability of the materials processed by the circular vibrating screen in the screening process is affected by many factors, among which the direct and important factor is the relative size of the material particle size and the mesh size. The ratio of material particle size to sieve size is called relative particle size. The smaller the relative particle size, the higher the screening probability. When the relative particle size is close to 1, the screening probability approaches zero. Therefore, materials with relative particle size equal to 0.7-1.0 are usually referred to as difficult screening materials or critical materials. The composition of difficult-to-screen materials in materials also has an impact on the screening probability. The higher the content of difficult-to-screen materials in materials, the lower the screening probability and the lower the screening efficiency. In order to obtain higher screening efficiency, the content of difficult-to-screen materials in the bottom aggregate should be reduced as much as possible. In addition, the difference of particle size index also has a certain impact on the screening efficiency. If the difference of particle size index is too large, it will cause a large production cycle and restrict the product quality and processing capacity. Therefore, the extreme mix of aggregates should be strictly controlled.
Applicable industries
Chemical industry: resin powder, pigment, washing powder, micro powder, paint, soda ash, lemon powder, rubber, plastic, etc.
Abrasives, ceramic industry: alumina, quartz sand, mud, sprayed soil particles, etc.
Food industry: sugar, salt, alkali, monosodium glutamate, milk powder, soy milk, yeast, fruit juice, soy sauce, vinegar, etc.
Paper industry: coating paint, clay mud, black and white liquid, waste liquid, papermaking liquid, wastewater recycling, etc.
Metallurgical industry: titanium oxide, zinc oxide, electromagnetic materials, metal powder, electrode powder, etc.
Pharmaceutical industry: Chinese medicine powder, Chinese medicine liquid, Western medicine powder, Western medicine liquid, Chinese and Western medicine granules, etc.
Environmental protection: garbage, human and animal excrement, and urine, waste oil, food wastewater, wastewater processing, etc.
Processing process
Production workshop
This is our inner workhouse.
some small equipment or parts will be made from here.
There are cranes, laser cutting machines, electric welding machines, platen machines, angle grinders, polishing machines, forklifts, and other equipment.
Packaging & Shipping
After you place the order and pay the deposit, we will start to arrange the production and contact the ocean freight transportation agency to reserve the position. Two days before the end of production, you need to complete the final payment. Then, we inform the ocean cargo transportation agent company that it is ready to come to the factory to pull the goods to the port. On the day of delivery, we will send the customer the factory video and pictures, and mark the corresponding English name of each product and product parts with a marker to prevent the customer from not knowing what each part is after receiving the goods. At the same time, we will put the English version of the product instructions in the cargo box. We generally select freight forwarders with preferential prices for customers to deliver goods for you. The shipping method can be FOB or CIF. You can also choose EXW, and then contact the goods agent company yourself.
Customer visit
FAQ
1. Who are we?
Our headquarters is located in Henan, China, and our factory was established in 2002. At present, there are more than 100 workers, technical engineers, foreign trade sales personnel, and administrative personnel. The factory covers an area of more than 2000 square kilometers and is mainly engaged in vibrating screening and conveying and feeding equipment.
2. How do we guarantee quality?
Always provide pre-production samples before mass production; Always carry out a final inspection before shipment.
3. What can you buy from us?
You can purchase a vibrating screen, roller screens, rotary screens, vacuum conveyors, mixer, and customized vibrating machinery and conveying equipment in our factory.
4. What are our strengths?
As one of the old enterprises in the screening industry, Tianfeng has provided a large number of screening equipment and systems at home and abroad. Mass production, rapid delivery, stable quality, affordable price, and excellent after-sales service have become the symbols of Tianfeng.
5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW, CIP, FCA, CPT, DDP, express;
Accepted payment currency: USD, EUR, RMB;
Type of payment accepted: telegraphic transfer, letter of credit, express remittance, credit card, PayPal, Western Union remittance, cash, custody;
Oral: English, Chinese, French.
6. What information do we need to help you choose a perfect machine?
-Name and characteristics of raw materials.
-Purpose of use: remove impurities, filter, and grade.
-Processing capacity: kg/h, L/h.
-Raw material size: (mesh or mm).
-How many floors do you need?
-Voltage, frequency, phase (single-phase or three-phase) Note: You'd better send us the relevant pictures or materials you want to filter, which can ensure that we recommend the appropriate machine for you.
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