Strict Inspection—Provide Perfect Equipment for Clients

Strict Inspection—Provide Perfect Equipment for Clients

After the circular vibrating screen production was completed,and there is an important step before delivery goods,that’s test running,and judge the equipment whether can work normally through equipment running condition,please see following test items:

1.Measuring rotary speed of principal shaft

The test principle is through infrared sensor scanning a fixed point on the shaft to confirm the rotary speed.Firstly,pasting the measured speed tags on rotor surface.then running the equipment,after the normal running，let the tachometer probe aims at one point on the tag movement locus,record the data,and it requires multiple measurements to take average.

2.Noise test of equipment running.

A good equipment should work without abnormal sound,after the equipment running normally,place the noise meter probe near the running parts of vibrating screen,record the data, it requires multiple measurements to take average.

Some Methods of Cleaning Stainless Steel Vibrating Sieve

Some Methods of Cleaning Stainless Steel Vibrating Sieve

Stainless steel vibration sieve will become matt if they are used for a long time, when screening materials with chemical reactions (such as corrosion) ,there would be a passivation film on the surface, it will exist steadily as a shape of the oxide in the nature. In other words, though stainless steel working conditions and oxidation are not the same, they will be oxidized in the end, this phenomenon is often called corrosion. The metal which is exposed in the corrosive environment, it will produce electro-chemical or chemical reaction on the surface of metal, even corrode. Corrosion resistance abilities of vibrating sieve passivation film are weak, due to stress caused by pitting corrosion reactions, it will generate small holes, coupled with the approach of chloridion, it will form a strong corrosive solution, which will accelerate the corrosion reaction rate, as well as the corrosion cracking inside the vibrating sieve, all of these will have a destructive effect on the surface of the stainless steel vibrating sieve.

Therefore, stainless steel surface needs cleaning and maintenance punctually, especially in the corrosive environment to ensure its beautiful surface and extend the use life. It is necessary to pay more attention to not scratch the surface during cleaning, and please avoid cleaning the surface by using liquid bleaching composition or abrasives, steel wool and abrasive stuff, in order to clean up the washing liquid, please clean it with water again after finishing scrubbing the surface.

I hope you can get some useful information.

What Should We Notice When Operate the Rotary Valve

What Should We Notice When Operate the Rotary Valve

Please pay attention to the following operation notes,hope it is helpful for you:

1.If motor is overheat when start up,please stop and inspect it, in order not to affect normal operation of the reducer.

2.Reducer must be operated as per the operating manual and the rotating direction must rotate according to the arrow direction as shown.

3.If powder leakage phenomenon occurs on the shaft, please tighten the packing gland bolts at both ends.

4.During operation , check bearing heating circumstance, general bearing temperature rising shall not be over 60 ℃.

5.During operation, if abnormal vibration occurs, please stop the machine and eliminate the abnormal phenomenon.

6.If there is bolt looseness in the process of operation, please tighten the bolt.

More information,please click: www.pkengineeringsol.com

How to Select and Install Screen Cloth of Linear Vibrating Screen

How to Select and Install Screen Cloth of Linear Vibrating Screen

The selection and installation of screen cloth is very important for linear vibrating screen. Select the most suitable screen cloth and install it according to correct way can improve the performance and prolong the service life of the linear vibrating screen.

1. How to select the most suitable screen cloth?

a. Because it is complicated for screen cloth installation of linear vibrating screen, we should select the screen cloth with thicker wire diameter.

b. While cutting screen cloth, we should keep the width of screen cloth consistent with the mesh frame, length should be 50-70mm longer than mesh frame.

2. How to install the screen cloth of linear vibrating screen?

a. Since the tensity of screen cloth will affect the screen efficiency directly, we should keep the screen cloth tension during installing the screen cloth.

b. Please confirm whether needs to add the bouncing balls according to mesh size and difficulty level of the screened material.

c. We should add suitable supported mesh size under the screen cloth if the mesh of the screen cloth is high or bulk density of the material is big.

d. While install the pressing plate, we should keep the flatness of the plate and line with strong scalability sponge sealing to lock it uniformly.

e. After completing installation, we should test the condition of feeding material and screening with few materials. If materials run forward uniformly, classify accurately without mixing phenomenon,linear vibrating screen can be used well. If not, we should adjust the linear vibrating screen mesh and test again.

Application & Development of Vibrating Screen in Food Industry

Application & Development of Vibrating Screen in Food Industry

Vibrating screen used in food industry is a kind of high efficiency screening machinery for high precision fine powder and other materials , which is easy to operate, fully enclosed structure, suitable for granular, powder, mucus and other materials screening and filtering classification. 

Such as powdered sugar, starch, salt, rice flour, milk powder, milk, egg, soy sauce, vinegar, fruit juice, papaya powder, green tea powder, kudzu powder, and potato processing production which are commonly used in daily life,vibrating screen will be a good helper. 

Take starch or rice powder as example, usually the first procedures : impurity removal of raw materials - screening-weighing;secondly , soaking- coarse grinding-germ separation-fine grinding-screening of starch-protein separation-centrifugal dewatering- thermostatic drying, lastly,weighing-product packing. We can not imagine how to deal with the screening in the process of food without vibrating screen. Vibrating screen overcomes the difficulty of fine material screening easily, which also makes food diversified and entire food industry develop rapidly.

Mentioned Points on Vibrating Feeder

Mentioned Points on Vibrating Feeder

1. In order to ensure feed materials uniformly and prevent materials flow automatically, the vibrating feeder should be installed horizontally. If feeding ordinary materials, users can install the feeder declined 10 degree; declined 15 degree is alright if dealt with viscous material or larger water content materials.

2. There should be 20mm moving clearance after installing vibrating feeder. Suspension device should adopt flexible connections.

3. Please tighten all bolts before commissioning with non-load, especially the vibration motor bolt. It’s better to tighten the bolts again after 3-5 hours of continuous operation.

4. When making a commissioning, two vibration motors must rotate reversely. Inspect the stability of current and noise, please stop it if there is abnormal situation.

5. Please add lubricating grease to motor bearings every 2 months. During hot season, every month should be added.

Possible Reasons Cause Linear Vibrating Screen Mesh Blocking

Possible Reasons Cause Linear Vibrating Screen Mesh Blocking

Due to different material properties, their shape is also different, so it will generate all kinds of mesh blocking forms. Her PK Machinery analyzes the reasons lead to this kind of problem, please see the following points:

1.It contains a large number of particles which approaches the point of separation.

2.Water content of materials are too high.

3.Spherical particles or materials have multiple contact points with sieve.

4.Materials can occur static electricity.

5.Material has fibrous attribute.

6.There are many flaky grain.

7.Wire diameter of woven mesh is too thick.

8.Hole-shaped of mesh sieve design is unreasonable, making particles get stuck.