In the process of using the grain suction machine, sometimes because of incorrect operation or the existence of problems with the machine itself may be the case of failure, and encounter failure to check and solve the problem in a timely manner, the following these common failures and practices you can refer to.
1, material mouth blockage
This situation is very common, if the material mouth blocked as long as the front cover flip open to check whether there is a foreign body in the material box, if there is a direct treatment clear. If there are cloth, plastic cloth and other entanglements, these foreign objects clear clean. And clean out the grain in the feed tube, and then turn on the machine can work normally.
2、Loose v-belt
If such a situation occurs, to immediately stop the operation, the two sides of the plate turned over, adjust the motor adjustment bolts can be solved. If the v-belt has been seriously worn, then you need to replace the same type of v-belt. If there is oscillation when starting the machine at no load, it is normal, and it can be directly loaded.
In short, the grain suction machine working conditions have faults is also common, so there is no need to be overly nervous after the fault, you can follow the above method to eliminate the problem.

Corn starch is produced by crushing, sieving, sedimentation, drying, and grinding of corn. Generally, after dehydration and drying of corn starch, corn starch with a moisture content of about 12%-15% will be obtained in most of the current processes. The moisture content is a very important parameter in sieving and affects the effectiveness and efficiency of sieving.
Vibrating screens are mostly equipment for removing impurities or grading dry powders and particles. The lower the moisture content of the powder, the better the fluidity of the powder and the easier it will pass through the screen. The easier it is to screen.
Therefore, the moisture content of corn starch should be controlled within 12% before entering the vibrating screen for screening. Excessive moisture content will easily cause the screen to be quickly stuck. The addition of an ultrasonic system to the equipment can alleviate the phenomenon of screen paste to a certain extent, but it is better to clean or replace the screen in time.
In the corn starch and similar starch industries, rotary vibrating screens (ultrasonic vibrating screens) and swing screens (ultrasonic vibrating screens) are the current mainstream equipment. The equipment is made of 304 stainless steel with a circular shape and the discharge port can rotate 360° , It is convenient for on-site layout and connection with lower receiving equipment.

The market application of ultrafine powder is becoming increasingly widespread, and the corresponding production process requirements are becoming increasingly strict. The requirements for the particle size and particle segment distribution of finished powder are becoming increasingly clear, and the low oxygen content of powder has become a new important indicator for high-end materials. Therefore, there are new standards for the process control of powder preparation. In addition to the preparation process, it is also necessary to control the particle size to avoid residual large or uneven particles. When parts are made by powder forming, ultrafine powder often gives the parts excellent properties. The finer the powder, the larger the adsorption, agglomeration, and specific surface area, the more obvious the fluidity, the higher the probability of oxidation, and the explosion characteristics will be displayed; This also makes it more difficult to separate large particles, separate small particles, control particle fragments, and reduce oxygen content, and the requirements for screening technology and screening systems are becoming increasingly high; Different metal or alloy powders have different physical properties, and a simple screening machine alone cannot solve the process problem of screening cutting-edge materials.

Food industry: flour, milk powder, starch, fish meal, Rice noodles, vitamins, condiments, dextrins, beverages, fruit juice, granulated sugar, soy sauce, pineapple juice, yeast juice, etc.
Chemical industry: paint, resin powder, PVC resin powder particles, citric acid, polyethylene powder, laundry detergent, etc.
Pharmaceutical industry: pharmaceutical intermediates, medical excipients, traditional Chinese medicine powder, traditional Chinese medicine liquid, Western medicine powder, Western medicine liquid, etc.
Ceramic abrasive metallurgy industry: aluminum silver paste, slurry, kaolin, quartz sand, alumina, artificial black aluminum, graphite, silicon carbide, spray soil particles, emery, iron powder, titanium dioxide, electrolytic copper powder, etc.

1. During the process of forced screening, the material will not be affected by mesh blockage or pasting, which will affect the passing speed.
2. The screening system and brushing system of the forced screen can be separated and become a regular rotary vibrating screen after disassembly.
3. The forced screening machine is mainly used for dissolving, loosening, and filtering materials.
4. During the operation of the brush and screen machine, the material can be evenly spread on the screen, without gradually squeezing the material to the edge of the screen due to the transfer of the brush, thereby affecting the material passing speed.
5. For materials with clumps and high viscosity of fine powder or slurry. The hardness of the clump is not very high, but it can be crushed by hand.
6. The brush material for forced screening is polymer material, and the brush can freely lift and move away from the screen to adjust the pressure on the screen and facilitate changing the screen.
7. The brush of the brush sieve can be adjusted arbitrarily between different material thicknesses (0-8cm) to adjust the pressure and contact area between the brush and the sieve.
8. The speed of the brush sieve can be increased from 0 rpm, and the brush rotates smoothly and uniformly without significant shaking.
9. The part of the brush screen that comes into contact with the material can be made of carbon steel, stainless steel, or plastic.
10. The vibration motor of the forced screen and the motor of the brush are powered independently and can be started and stopped separately.

The reasons that affect the screening effect of the vibrating screen are:

1. The influence of the properties of the vibrating screen surface and its structural parameters on a certain material, the productivity and screening efficiency of the sieve are determined by the size of the sieve hole. The productivity depends on the width of the screen surface, which has a high productivity. The screening efficiency depends on the length of the screen surface, which has a high screening efficiency. The general aspect ratio is 2. The larger the sieve area (i.e. the ratio of the sieve aperture area to the entire sieve surface area), the higher the unit area productivity and screening efficiency of the sieve surface. The larger the mesh size, the greater the productivity per unit sieve surface and the higher the screening efficiency.

2. The physical properties of the screened material include the particle size composition, humidity, mud content, and particle shape of the material itself. When the content of fine particles in the material is high, the productivity of the sieve is also high. When the humidity of the material is high, the screening efficiency generally decreases. However, the larger the sieve size, the smaller the impact of moisture. Therefore, for wet materials with high moisture content, in order to improve the screening process, it is generally possible to increase the sieve size or use wet screening. Materials with a high mud content (when the mud content is greater than 8) should be screened through wet screening or pre washed.