Vibrating feeder installation commissioning and maintenance tips

1.Vibrating feeder is used for batching and quantitative feeding material to ensure uniform feeding stability,horizontal installation should be adopted to prevent self flowing, declined10 degree installation should be adopted if there is continuous feeding, declined 15 degree installation can be adopted for viscous material and large water content material.
2 .After the installation, 20mm level lateral clearance should be left for vibrating feeder, suspension device should adopt flexible joint.
3. Before non-load test, please fix all bolts, especially the anchor bolt of vibration motor tighten the bolts again after continuous operation for 3-5 hours.
4. Two vibration motor must be reverse rotation when test run to check the current and noise stability, if any abnormal conditions, please stop the feeder and solve it timely.
5 Motor bearings should be lubricated every two month, for high temperature season bearings should fill the lubricating oil every month.

Reasons lead to circular vibrating screen mesh plug

When circular vibrating screen works, the material properties are very different, as well as its shape. Due to different shape of material ,it can produce a various forms of mesh plug.After the analysis of PK machinery engineers, the cause of mesh plug mainly shown as follows:
1.Contains a lot of close to the separation point particles
2. The material moisture content is higher
3. The spherical particles or material has multi-contact points property to mesh 
4. Static electricity occurs
5. Material is a fibrous material
6. Flake shape material proportion is more
7. Woven mesh wire diameter is too thick
8.Thick Sieve mesh, unreasonable hole shape design, which will lead particles get stuck.

Maize can not be sieved without vibrating screen

 Vibrating screen should be adopted in the beginning of the removal of impurities during the production of maize starch,in order to ensure a safe production of raw materials,so the removal of impurities is very necessary, maize raw materials contain a variety of impurities, dust, organic impurities, inorganic impurities. The general design will be 3 screen decks, the first deck screen surface with an aperturesize of 17-20mm hole, aimed to eliminate over sized impurity; second deck screen surface with an aperturesize of 12-15mm hole, used to remove impurities of medium size, third deck screen surface with an aperturesize of 2mm hole, used to remove minor impurities.
Advantages are high precision, large capacity, simple structure, low energy consumption, low noise, long service life, good sealing, no dust overflow in the screening process, and reduce the pollution of the dust, the screening efficiency is up to 98. It is very suitable for the screening and classification of powdery and granular materials, applicable to dry powder material chemical industry, food, medicine, metallurgy, plastics, glass, building materials, food, fertilizer, abrasives, ceramics etc.

How many types of vibration screen sieve mesh do you know?

Vibration screen sieve mesh is one of the main components of vibrating screen. If the sievemesh can not be chosen correctly, it will even affect the screening efficiency, when screening material is unqualified ( mesh is over sized), materials will accumulatedon the sieve badly (mesh is too small, material will accumulate on the sieve and lead to screen mesh damages). Here we’d like to introduce the different types of sieve meshed as below:
Woven mesh: material commonly used forscreening equipment with smallmaterial density and capacity. The construction materials are stainless steel sieve mesh, low carbon wire mesh, galvanized wire mesh. According to the material particle size, density, volume, material characteristics ,please choose sieve mesh with different construction material, aperture, wire diameter.

Punched sieve mesh: the span life of punched mesh is related to the mesh thickness, different mesh sieve size should use different thickness. The advantage of punched mesh is that it can be fixed according to the material shape.

Welding sieve plate: mainly used for ore sieving, coal sieving, it is welded by steel plates.

Small part with large effect : Vibrating Screen damper

Do you know Circular Vibrating Screen damper?it’s a device which limits vibrating screen horizontal vibration.
May be you feel puzzled,is there any vibration in the horizontal direction?The answer is no In theory, but the practice has proved that it exists, the reasons are as follows:
(1) The distribution of material on the screen mesh is uneven. 
If the material is uneven,it can lead to the uneven force for screen box ,thus vibrating error appears.
(2) Installation error.
The Circular Vibrating Screen needs horizontal installation,but in the process of installation, the error will inevitably occur, resulting in a height of four supports occur small deviation, but the small deviation will be amplified by the vibration exciter, thus it will result in greater vibration deviation.
(3) the stress error of the spring.

Do you know Circular Vibrating Screen damper?it’s a device which limits vibrating screen horizontal vibration.
May be you feel puzzled,is there any vibration in the horizontal direction?The answer is no In theory, but the practice has proved that it exists, the reasons are as follows:
(1) The distribution of material on the screen mesh is uneven. 
If the material is uneven,it can lead to the uneven force for screen box ,thus vibrating error appears.
(2) Installation error.
The Circular Vibrating Screen needs horizontal installation,but in the process of installation, the error will inevitably occur, resulting in a height of four supports occur small deviation, but the small deviation will be amplified by the vibration exciter, thus it will result in greater vibration deviation.
(3) the stress error of the spring.

How to select the gyratory vibrating screen

Gyratory vibrating screen is generally used for granule, powder etc fine screening, such as urea, silicon carbide, activated carbon, silica sand, salt, sugar, plastics etc industries. 
Features of gyratory screen:
1. It can be customized to be 1~3 lyers, and the sieve mesh size can be indicated;
2. Generally,Screen mesh material is stainless steel, it also can be selected according to the customer’s requirements;
3. There are self-cleaning device (bouncing ball) under the screen mesh, to avoid blocking during running;
4. The gyratory screen box can be open-type, also can be enclosed model, sealing and dustproof;
5. The main screen body generally is hanging installed, it also can be designed to be seated type accordingly;
6. The screen mesh width can be selected from 1200~2000mm, screen mesh length can selected from 3000~4000mm. Special design also can be achieved.
In order to give you a better project solution, please kindly supply the following technical requirements: 
1. Do you have any installation space limit?___
2. How to feed material into the gyratory screen:___?
3. The required capacity ____t/h
4. Separated material name _____
5. Material density ____ t/m3;
6. Material particle size distribution percentage___%
7. Material temperature ____℃;
8. How many layers do you need ? or how many kinds range particle size material will you want to separate out?
9. If need to match the feeding device or discharging belt conveyor, please kindly send us the production line layout sketch, we will help you design the details accordingly.

What is the required data for tripper conveyor model selection?

Tripper conveyor can be designed to achieve discharging bulk material along the belt conveyor. It is applied to large area store material in warehouse etc. very well.The tripper conveyor is a kind discharge device, which can achieve multiple point discharging along the belt conveyor system, also can achieve both side discharging or single side discharging.

The rail for tripper conveyor is welded on the top of the conveyor intermediate frame, the rail length is designed according to the customer’s required discharging length.

In order to send you a better project solution, please supply the following technical requirements: 
1. The required discharge length for tripper conveyor ____m;
2. Do you have any installation space limit;
3. The required capacity ____t/h;
4. The length for belt conveyor system ____m;
5. Transported material name _____;
6. Material particle size distribution_____mm;
7. Material temperature ____℃;
8. Material density ____ t/m3;
9. If you have the required belt width, please kindly list ____mm. Or we will help you design it according the the above information.

New dust removal method for vibrating screen

Most of the Dust removal method of supported type vibrating screen in our country is cloth bag dust removing technology, which includes cover dust catcher, pipelines, cloth bag dust collector, induced draft fan and chimney, etc. The advantage is high dust removal efficiency. However,the disadvantage is large investment, low dust collecting rate, easy blockage of horizontal pipeline, large pumping air volume, high operating cost, big occupied area of dust catcher,induced draft fan and chimney, besides, it needs to set up full-time operation& maintenance personneland the dust transport equipment.
In order to solve the above problem, we have researched a new resolution with high rate of dust removal system, low processing cost, long service life, less investment, small area coverage and short construction period.
The new dust removal method offers secondary dust removal for supported type vibrating screen.Primary dust removal equipment will fixed above the vibrating screen,collected dust will enter into vibrating screen; Secondary dust removal equipment will be placed near vibrating screen and remove dust by itself.

Primary dust removal: seal the supported type vibrating sieve surface and set a dust filter above it,set up an efficient filter bag to filter the air, clean air will be discharged through 3.0 kW fan, thus dust will enter into the vibrating screen through the bottom of the filter. Vibrating screen drives sieve surface vibration,while the dust filter is fixed, so one moveswhile the other one not, both connected by the pipe, the joint connection adopts rubber to reduce the vibration.
Secondary dust removal: Seal the supporting type vibrating screen and dust removal joint, leave a open mouth to connect the pipe for conveying the escaped dust into the secondary dust filter,set a high efficient dust filter bag to filter the dust, and then the clean air will be discharged through 3.0 kW fan, then the dust is discharged from the filter at the bottom of the tube and the valve.