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.

Vibrating sieve surface material buildup reasons

In our company, there will be individual customers often call me to ask some information today explained one: Vibrating screens will appear in the course of the screen surface has a material accumulation phenomenon. So what is causing this phenomenon is the reason? Pingyuan mining mechanical engineer for detailed analysis of the phenomenon based on years of experience, can be attributed to four reasons:
1, the screen and the discharge port are in the same height? Under normal circumstances should be level or higher than about 6mm, depending on the material discharge port design are not the same height.
2, mesh shaker screen of choice if there are problems? Mesh mesh screen is too small will cause the material through network rate.
3, shaker vibration motor angle adjusting Is there a problem? Improper adjustment of the angle of the vibration motor can also cause material accumulation phenomenon, the smaller the angle on the screen surface material spread outward run faster, whereas angular displacement of the General Assembly to make the material spread out slow. If you are under strict requirements for screening accuracy, the motor angle should not be too small, so as not to affect the accuracy of screening, in general, the factory motor shaker angle of 45 °, the user can also special screening process based on its material Requirements will adjust the vibration motor angle to 100 °, the mesh material is centralized.
4. Check if the shaker is placed on the ground level, high spout will affect the operation of track material, causing the material to one side.

What Screen is Used in the Feed Industry--the Gyrotary Screen

At present, most feed manufacturers need to sieve and grade the powder material ,granular feed, and the intermediate products after secondary crushing. The quality and output of the feed products are directly affected by the classification and the performance of the equipment. What screen is commonly used in the feed industry? The answer is the gyrotary screen. It is widely used in feed industry due to its simple structure, large output, convenient maintenance, low noise.
Under the inertia force, gyrotary screen sieve box moves back and forth, driving the screen surface shaking periodically, and forcing feed material on the screen surface jumps along with the screen box, the material which is less than sieve aperture will be discharged from the outlet after continuous rolling and jumping movement, then screening operations complete.

 

Gyrotary screen is a new type of high efficiency swing type linear screening equipment ,and also called square swing sieve, it can completely solve the screening accuracy and processing output contradiction of general vibration screening machine, see the following characteristics:
1.Reasonable design, mature technology, easy installation and maintenance, wide application scope;
2.High screening efficiency , precision and processing capacity;
3.Unique design, convenient screen mesh replacing, high utilization rate, long service life;
4.Good screen mesh self-cleaning effect is good, low noise;
5.Good sealing effect, energy saving and environmental protection.

Besides, gyrotary screen can be used in chemical, metallurgy, ceramics, non-ferrous metals, non-ferrous metals, non-ferrous metals, food, food, abrasive, mining and other industries in the accurate screening and grading process. Specific application materials, for example, chemical industry: chemical fertilizer, resin, melamine, soda ash ; Food industry :starch, salt, sugar, milk powder and other; metallurgy, non non-ferrous metals, nonferrous metal, magnetic materials. If you would like to know more about the knowledge of the gyratory screen, please visit: www.pkmachinery.com

The Operation Specification of Vibration Platform

Using Introduction:
1. Before installing the vibration platform, please lay a good foundation, then install it, when installation, the fixed bolts must be tightened.
2. Before test run the well-installed vibration table, first 3-5 minutes start-up to check all the fastening bolts, if loose, should be tightened.
3. In the process, concrete products should be firmly fixed on the vibration table, and be symmetrical with the platform to balance the load. Users can design their own vibrated product fastening device according to their needs.
4. Vibrator bearings should be inspected and cleaned regularly and maintain a good lubrication of the bearing to prolong the service life of the vibrator.
5. Vibration table should be reliable grounded to ensure safety.

vibrating platform

Operating Regulations:
1. Before using the vibration platform, 3 ~ 5 min non-load test first, then stop and tighten all fastening parts, 2 ~ 3 times repeatedly, it can be put into operation.
2. When using vibration table, the test mode of concrete specimens must be securely fixed on the working platform. In order to balance the load, test mode must be placed symmetrically with the center line of the table.。
3. Vibration motor should be grounded well and reliably.

4. In the production process, if vibration table sound is abnormal, please stop using immediately, unplug the power and fully inspect whether the fasteners are loose or not, check whether the inner eccentric vibration block of motor is loose or damaged, if necessary, tighten the loose parts and replace the damaged parts.

vibrating motor

5. After using, please turn off the power, clean the vibration table surface.

Application of Dewatering Screen in Beneficiation Process of Potash Feldspar

Recently, most of manufacturers choose spiral classifier and pressure filter to dehydrate potash feldspar during dehydration process. But there are some disadvantages, spiral classifier cannot classify materials completely and pressure filter needs large investment. What’s more, if users adopt spiral classifier to deal with the separation of residue water during the production of potash feldspar, it will cause the finished materials containing too much water so that the materials cannot be dry heaping. It is found that if users adopt dewatering screen instead of spiral classifier, the water content of potash feldspar will be less than 15% after dewatering by dewatering screen and the materials can achieve dry heaping effect. Furthermore, it can increase recovery rate of finished products because the dewatering screen can elect fine sand which will lose caused by spiral classifier.

 

There are two applications for dewatering screen used in beneficiation process of potash feldspar, one is used for classification of potash feldspar which is processed by ball mill, another is used for dewatering of potash feldspar products. In the traditional production process, it always uses pressure filter to deal with this kind of materials during the dewatering process of potash feldspar products. But this kind of production technical has large energy consumption, lower working efficiency and higher water content. While if users adopt dewatering screen to deal with potash feldspar, it can improve the production efficiency greatly, also can reduce energy consumption and floor space.

Application and Difference of Shaft and Shaftless Trommel Screen

There are 2 kinds structure of trommel screen. One is trommel screen with shaft, the other is shaftless trommel screen. Generally both of them can be applied in some common bulk material, however, for material with special property, we must pay more attention to select a more suitable model according to the application working condition. Trommel screen with shaft:
The drum is installed aslope on the main frame. The motor and gearbox connect the drum through a coupling and rotates around an axis. After the material fed into the drum, the material can move forward and rotate due to the inclination and rotation of drum. The qualified material will be discharged from the bottom hopper, and the unqualified material will be discharged from the end outlet. As the material rotates in the drum, which make the blocked material bounced out of the aperture to prevent the mesh blocking. Trommel screen with shaft is generally used for screening granular material with large density, such as: sand, coal, limestone, fertilizer, compost and mineral, etc.

 

Shaftless trommel screen: 
The shaftless trommel screen is installed horizontally. The drum is rotated driven by motor wheel gear or motor chain. Generally the rotate speed is very slow and the drum length can be designed longer, which can increase the screening efficiency. In the drum internal wall, there is a delivery plate ( sometimes screw type) to make the material move forward. The material which is larger than mesh size will be discharged at the end outlet, and the material which is smaller than mesh size will be discharged at the bottom discharge hopper. If the material is household garbage, we can also add a cutting tool, which can rive some plactis bags, etc.
Shaftless tromme screen is generally used for screeninig material with small density, such as: waste, wooden chips, activated carbon, fertilizer, construction material, chemical material, etc.

Do not Ignore the Unbalance Motor Vibration Phenomenon of Vibration Table!

Vibration motor is not as what you imagine, only plus a few springs on the equipment, and put on a few motors, it will become a veritable vibration equipment, then will be used for vibration production? In fact, sometimes the question is much more serious than the imagination, the theory and practice is the only way which can reach truth. Next Henan Pingyuan Mining Machinery Co., Ltd will explain to you: The unbalance vibration phenomenon of the vibration motor for vibration table.

The problem of vibration which cannot meet the vibration motor in the running of the equipment, also can never be solved, that is uneven and unbalance of the vibration. The influence of the unbalanced vibration in the screening equipment is less, while the influence will often appear in making the vibration table. However in the reality, the unbalanced force of vibration equipment is often neglected by us.
1. In the use of a single vibration motor on the vibration table, it can appear the problem of motor rotation, the material will move on the surface of vibration table.
2. In the use two vibrating motors, it will change the uniform vibration point of the vibration table. Due to counter rotation of two motors , it will offset the power in the middle of the vibration table. If the vibration amplitude around the platform is 5mm, the vibration amplitude in the center of the table can't be over 3mm.

Why shoudld we select bin above the conveying and screening equipment

Are you complaining the screening and conveying equipment you bought is not durable? Are you worried about equipment bearing capacity if you want to improve the production efficiency? Here we would like to give some tips for you:
No matter vibrating screen or belt conveyor, once they work with other corollary equipment, the joint parts are pretty crucial, the common one is hopper, it is not only because it can store material, but also can reduce the impact to screen mesh when feeding material, and increase the service life. In order to control the feeding rate of hopper uniformly, a electric or a manual gate valve can be added at the bottom of hopper, or a silo vibrator (we call it vibration hopper) to feed the material more uniform or vibratory feeder machine.
For example, one of our customers want a tilt screw conveyor, due to the small capacity, it needs to feed material to conveyor directly, we recommend placing a hopper on the screw conveyor in the purpose of storing material in order to ensure continuous working of screw conveyor and transmission efficiency of the screw conveyor.
During the use of conveying equipment, in order to improve the production efficiency of the conveying and screening equipment), it is necessary to put a hopper above the equipment. This will reduce the worker's labor intensity, the number of workers, the cost production line.

Difference between ultrasonic vibration sieve and ordinary rotary vibrating screen

Compared with rotary vibrating screen, ultrasonic vibration sieve is equipped with a ultrasonic generator, with self-cleaning function ,the mesh is not easy to block, it is no need to add bouncing balls and other anti blockage device. Ultrasonic vibrating screen is particularly suitable for screening fine powder and light weight material with mesh size larger than 300 mesh.

 

Ultrasonic screening system is composed of ultrasonic resonant power supply, oscillator and resonance ring. The ultrasonic resonant powder supply will generate longitudinal oscillating wave which will transmit to the resonance ring to produce a resonance, and then the vibration will be transmitted to the screen mesh evenly through the resonance ring. While material on the screen mesh does three dimensional vibration movement in the low-frequency, it will overlap the ultrasonic vibration which can prevent the mesh plug and improve the screening yield and screening quality.
The performance characteristics of ultrasonic vibrating screen: it can sieve the heavy, light, ultra-fine, strong adsorption powder (almost all of the powder is effective) that ordinary rotary vibrating screen can’t sieve. Compared with ordinary rotary vibrating screen, the material passing rate of ultrasonic vibrating screen will be increased by 50%-400%, the performance is as follows:
(1). Reduce screen mesh cleaning time;
(2). No pollution of powder that generated by bouncing ball and other auxiliary materials;
(3). Keep the screen mesh size, stable precision screening;
(4). Reduce the material stuck on screen mesh size;
(5). Reduce screening frequency.

What should We do to Use #Vibrating #Feeder Safely?

Are you obtaining the correct methods to operate the vibrating feeder safely? Following mentioned points are the matters users should notice during operation,we are sure you will benefit a lot!   Firstly, lubrication
Regular maintenance and overhaul are important means of extending the service life of the machine and ensuring the normal work, users should attach importance to it. For lubrication, users should pay attention to the following two points:
1.The machine adopts thin oil splash lubrication, the lubricant should be determined according to the use place, temperature conditions. General used oil is gear oil;
2.Make sure that the exciter in the thin oil is higher than the standard height (filling by joint bend), oil must be replaced every three to six months, when we change the oil, please use clean gasoline or kerosene to clean the oil tank, bearing raceway and gear surface. Secondly, we need to be aware of safety technology of the following points during use:
1. The machine operators should subject to security technology education;
2. Reinforce all the bolts to prevent the looseness in the operation process;
3. Often view the amplitude of the vibration motor, if it is unusual, immediately stop and repair.
4. When the vibrating feeder is running, it is forbidden to stand beside the machine, touch, adjust, clean or inspect the machine and so on;
5. Equipment should be grounded, wire should be reliably insulated, and packed in a snakeskin tube, we should often check whether the motor wiring wears and leaks of electricity.

How to Make Vibrating Screen Look Clean without Stainless Steel?

Stainless steel vibrating screen 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 screen .
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.

rotary vibrating screen

The classification of Explosion-proof Vibration Motor

1.According to the principle, explosion-proof vibration motor can be divided into explosion-proof asynchronous vibration motor, explosion-proof synchronous vibration motor and explosion-proof DC vibration motor etc.

 

2.According to the working place , explosion-proof vibration motor can be divided into coal mine use explosion-proof vibration motor and factory use explosion-proof motor.
3. According to the explosion protection principle , explosion-proof vibration motor types can be divided into the flameproof type, increased safety type, positive pressure type, no-spark type and dust & explosion-proof electrical motor, etc.

 

4.According to the matching equipment, explosion-proof vibration motor can be divided into explosion-proof motor for coal mine conveyor, coal mine winch, rock loader, coal mine fan, valve, blower, marine, lifting metallurgical hydrogenation device.

 

5.According to the nominal voltage and efficiency, explosion-proof vibration motor can be divided into high voltage type, high efficiency type, high slip ratio type and high starting torque type of explosion-proof motor.

 

Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating screen, Bucket elevator, Screw conveyor, Scraper conveyor using the world's most advanced technology, we are willing to serve every company to meet your custom needs. our goal is "be the future global leader of mining machinery industry". have any questions, please contact us without any hesitation. 

   Tel: +86 373 579 9198

   Fax: +86 373 507 1699  

   info@pkmachinery.com  

Address: 289 Yellow River Road, Xinxiang City, Henan Province, China

Introduction of Vibration Platform

Vibrating/Shaking Platform is the device mainly used for reducing air and crannies among the material to compress the material; it is always used with silo.

►  Working Principle

Unbalance motors make the platform to oscillate. An oscillation insulating elastic suspension connects the top and bottom part of the platform. The amplitude of the oscillation can be changed by adjusting the unbalances on the unbalance motors during standstill. Besides, the vibration frequency can be changed during the operation time if an electric control with frequency inverter is being used. Both parameter have influence on the vibration intensity and allow an adaption to the different scopes. 

►  Features
1) Durable
2) Strong power
3) Stable running
4) Simple structure
5) Reduced maintenance
 

structure of vibration platform

►  Advantage

   1.Durable

   2.Strong power

   3.Stable running

   4.Simple structure

   5.Reduced maintenance

   6.Noiseless

   7.For concrete and construction applications, it can reduce the need to trowel during pours.

   8.Reduce or eliminate the need to hand finishing to remove flaws caused by trapped air.

   9.Dramatically improve product quality and reduce defects without increasing cost.

   10.Properly fitted with the motors and other parts to ensure smooth functioning.

 

                                                                       vibration platform
►  Application

Vibration platform is used for:

   1.Compaction, detachment and aeration of bulk materials

   2.Testing of welded joints in automobile industry and delicate joints in electronic industry

   3.Effective packing of fluffy and difficult to handle powder in chemical and pharmaceutical industry

   4.Proper flow of powder in dies and moulds to get perfect moulded parts

It can apply on steel, foundries, concrete, food processing, plastics, construction, chemical and bulk materials industry. 

PK Mining Machinery Company

Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating screen, Bucket elevator, Screw conveyor, Scraper conveyor using the world's most advanced technology, we are willing to serve every company to meet your custom needs. our goal is "be the future global leader of mining machinery industry". have any questions, please contact us without any hesitation. 

Tel: +86 373 579 9198 

Fax: +86 373 507 1699  

Email: info@pkmachinery.com  

Address: 289 Yellow River Road, Xinxiang City, Henan Province, China