5 methods to solve vibration motor frequent trip problem

Almost everyone knows the basic operation of vibration motor, but there are some points we need notice in the process of operation,especially the vibration motor frequent trip problem, according to our technical personnel’s experience, now we introduce some methods to avoid the trip for your reference:
1.Capacity unconformity or aging of vibration motor air switch and overcurrent protective device, just change the switch will solve the problem.
2. The wire cable skin of vibration motor is broken ,this is mostly due to wear and tear during long period use,it can be wrapped with tape.
3. Bearing damages or lacks oil,lead to overload trip.Thus we should replace the bearing timely.
4. Vibration motor power supply doesn’t work,or circuit breaker gets aging.
5. The magnetic circuit performance of vibration motor decline,causing too much current.
The above several problems are relatively simple to handle,according to the corresponding reasons, users themselves can solve them through adopting corresponding methods. If the trip of vibration motor is not caused by the above several reasons, please do not hesitate to contact with us,our engineer will solve the problem for you.

How to improve the efficiency of screening?

The way to improve the screening efficiency is in the list:

• We should improve the sieve plate opening rate, because of high opening rate is conducive to improve the sieving effect.
• If conditional word, we can add a fixed screen into the feeding end for coarse mesh.
• To dry screening,we should strictly control the moisture, when the water is on the high side,then can consider to ingredients sieve.
• Conditional word,also can consider to adjust the screen Angle, the proper Angle is beneficial to reduce the thickness of the material, thin layer material screening.
• Conditions permitting, wet screening, this is the most effective way to improve the sieving effect.
• Decrease the rate of screen batter hole, can consider to choose the cleaning sieve plate, such as the spring rod type screen surface or add prevent blockage device screen below.
• Changing the material, the material must be along the full screen width, be sure to make full use of the screen surface.
• For circular vibrating screen, can consider to adjust the weight method to improve the sieving effect.
  
  
  
  

Improve dry or wet screening efficiency of vibrating screen

Following methods can improve screening efficiency of vibrating screen:

1.For dry screening,we should strictly control the water content,for material with high water content,please consider screening with ingredients.
2.Reduce the of plugged hole,we can consider using the self-cleaning sieve plate,for example,for spring rod type screen mesh surface,we can add a prevent blockage device below the screen.
3.Improve the aperture percentage,high aperture percentage is beneficial to improve the screening effect.
4.Adjust the feeding way.Material can be fed according to the sieve surface width and ensure the sieve surface can be fully utilized.
5.If possible,please consider the dip angle of the screen machine,suitable angle is beneficial to reduce the thickness of material and achieve thin material screening.
6.For circular vibrating screen,we can consider adjusting the balance weight to improve the screening effect.
7.If possible, coarse screening before feeding material.
8.If possible, we can adopt wet screening,it’s the most effective way to improve the screening effect. 

What should we know about when we choose screw conveyor?

In our day life,we will use screw conveyor frequently.In order to we can send a detailed news about the thchnical parameters and requirements of machine.In there,our company-Henan pingyuan mining machinery will list the factors about selecting a screw conveyor of manufacturers to provide technical parameters.
The include:

In this,we can save time and money.also,the manufacturer will quickly according to your required parameters for selection and quotation.

What factors affect vibrating screen purchase

Please consider the following factors when purchase vibrating screen
A.Physical property of the material
Including material particle size, shape, moisture content, bulk density ,property ,etc. When the particle size is fine and mesh size is small, the screen efficiency will be lower, we need to select larger model for same capacity; when the moisture content is big, in general, the screen efficiency will be lower. However,if the mesh size is bigger, the influence of moisture content will be less; when the material with corrosion property, the material contacts parts usually need to be SUS 304 or whole machine is SUS304.

B.Screen surface character and structure
In general, if the material do vertical movement on the screen surface (such as linear vibrating screen,etc), the screen efficiency will be higher and the capacity is larger. If the material do reciprocating movement on the screen surface (such as gyratory screen,etc),the screen efficiency and capacity will be lower.
For certain material, the screen efficiency and capacity rate are determined by the mesh size. The screen efficiency is determined by the screen surface length, the longer screen surface length is, the higher screen efficiency will be; the capacity rate is determined by the screen surface width, the bigger screen surface width is, the higher capacity rate will be. 
C.Production condition
The screen efficiency will be lower when the load on the vibrating screen is big.Uniform feeding material also has a big influence on the screen efficiency. (For this question, PK Machinery designs a distributor above the inlet of vibrating screen to achieve uniform material feeding).
Only when we take all above factors into consideration,will we get a suitable vibrating screen that can meet our production efficiency. 

Factors affecting the efficiency of screw conveyor

Main factors influencing the efficiency of screw conveyor:

1. Material viscosity, easy caking. Material viscosity,material is prone to sticking to the blades and conveyoron the inner wall, making large resistance change in thematerial handling process, a direct impact onproductivity.

2. Spiral pipe diameter size. Under the same conditions,of large diameter conveyor transmission efficiency thandiameter small throughput and higher efficiency.

3. Angle of screw conveyor and transmission distance.

4. Material particle size, temperature, moisture,abrasion and corrosion. Specific parameter can refer to:technical parameters of screw conveyor and conveying calculation formula.

5. Screw conveyor speed. Screw conveyor speed relates to the motor of the conveyor's size. Screw conveyor speed has a close relationship with material properties. High speed screw conveyor Assembly is strict, but also better balance.

Basic Type of Scraper and Chain Used for Buried Scraper Conveyor

As the traction and load-bearing components of buried scraper conveyor, scraper chain subassembly is generally welded by different types of scrapers and chains, or one-piece casting.
Subject to the gravity and conveyor trough, the material is transported by the thrust from scraper chain subassembly, as well as the friction and lateral pressure caused in conveying process. Therefore, the appropriate selection of scraper & chain influences the conveying and operating efficiency greatly.

According to different material property, conveyor trough width and capacity, various types of scraper and chain are chosen to meet the actual operation requirements.
1. The basic type of scraper
Scraper can be classified according to their shapes. There are flat scraper (T-type), framework scraper (U-type, V-type, H-type), side-pull scraper (L-type) and solid angle shape scraper, etc.
U-type and V-type scrapers are most commonly used, and suitable for horizontal, inclined and vertical transmission. 
T-type and L-type scrapers apply to horizontal transmission.
H-type scrapers are appropriate for square cross section conveyor.
Other special type of scraper, such as cleaner scraper, which bottom margin and broadside are installed with rubber sheet, neoprene sheet, leather sheet or canvas sheet, is used to remove the residue remained in the conveyor casing. In order to prevent most viscous material bonded in the inner wall of casing, the manufacturer can install a cleaner scraper every 5 ~ 10 chain link. 
2. The basic type of chain
There are three types of chains used for the buried scarper conveyor, bush roller chain, die forging chain and double chain.
Bush roller chain has the features of flexible rotation, low friction in meshing process, low specific pressure and small abrasion. While the chains must be replaced in pairs because of its heavier weight.
The characteristics of die forging chain are simple structure, light weight, high strength, reliable operation and convenient assembling & dismantling. 
The pitch of double chain is big, so it has the advantages including high carrying capacity, reliable operation and convenient assembling & dismantling. But the disadvantages are heavy weight, and can’t be designed according to equal strength.  

What Factors that Affect the Screw Conveyor Conveying Efficiency ?

The factors are listed as follows:
1.The material has great viscosity and is easy to agglomerate. 
The viscous material is easy to stick on the screw blade and the inner wall of the screw conveyor, which will increase the resistance in the process of conveying, and directly affect the production efficiency.
2.The diameter size of the screw pipe.
Under the same conditions, conveying efficiency of the screw conveyor with larger diameter is higher than the conveyor with small diameter.

3.The dip angle and transportation distance of screw conveyor.
4.The particle size, temperature, moisture, abrasion and corrosion of the material.
Specific parameters can refer to: Screw conveyors and conveying technical parameters calculation formulas.
5.The rotate speed of the screw conveyor.
The rotating speed of the screw conveyor is related to the power of conveyor motor . The working speed of screw conveyor has a close relationship with the material characteristics. High speed screw conveyor requires strict assembly, and demands a better balance. 
Further information,please click:www.pkmachinery.com