Pharmaceutical Vibrating Screen

Pharmaceutical vibrating screen is one kind of vibratory screening equipment that tailored for the pharmaceutical industry specifically, which comply with the 2010 amendments to the "China Pharmaceutical Manufacturing Practice" (Good Manufacture Practice, hereinafter referred to as GMP) requirements in the pharmaceutical equipment standards. During the production process does not pollute the drugs, is the standard choice of material grading screening in the pharmaceutical industry. GMP has a high requirements for pharmaceutical equipment especially in the material and material selection, pharmaceutical vibrating screen produced by Henan Pingyuan Mining Machinery Co., Ltd is strictly accordance with the GMP requirements and upgrade on the basis of ordinary vibrating screen, mainly used for screening and filter all kinds of medicine materials, such as fines, powder, and dry and wet materials etc; By doing this we wish that our vibrating screen can meet your specific requirements.

Main features

1, the pharmaceutical vibrating screen uses high-quality SUS304 stainless steel;

2, both inside and outside of the equipment has been trough polished, smooth and clean procedure, no black spots, no glitches;

3, Pharmaceutical vibrating screen used rubber balls that in line with GMP pharmaceutical grade silicone material;

4, the whole machinery must be through clean and disinfection procedures by alcohol before the machinery leave the factory

5, some pharmaceutical materials with explosive characteristics, so when screening these material pharmaceutical vibrating will equipment with a vibration-proof motor to avoid the vibration motor shell overheating result in fire or explosion during the production process;

Pharmaceutical categories such as: pharmaceutical intermediates, medicinal supplementary material, Chinese medicine powder, Chinese medicine liquid, western medicine powder, western medicine liquid and other acidic, alkaline, oily, etc more than thousands of materials. Generally pharmaceutical industry used 304 stainless steel vibrating screens.

NOTES: This series of pharmaceutical vibrating screen can be one or more layers. According to users different requirements can be divided into: gate vibrating screen, add edge vibrating screen, ordinary vibrating screen or linear vibrating screen; production of materials usually adopt stainless steel and carbon steel. It can also according to customer requirements, material properties, to custom more appropriate screening machine

 

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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

The advantages and Principles of Vibratory Feeders

Vibratory feeders (as known as vibrating feeders,vibration feeders) is suitable for metal and coal feeding system. The materials will be discharged evenly onto the belt conveyor from bunker by using vibratory feeders and will form into a appropriate thickness and width of material layer. Applicable materials can be coal, ore, sandstone, sandy soil and other powder raw materials in food and chemical plant.

Working principle:

The feeding process of vibratory feeders is achieved by the feeding chute doing linear reciprocating vibration periodically which is forced by the special vibrating motor. When the vertical weight of the feeding chute vibration accelerated speed is bigger than the gravitational acceleration, the material will be upthrown and jumped forward along a parabolic path. The feeding chute will vibrate and the material inside the feeding chute will jump forward continuously due to the continuous exciting of the vibrating motor, so that it can achieve the purpose of material feeding. 

The characteristics of the vibratory feeders mainly include the following parts:

1. It can easily control the discharge capacity. You can also control the discharge capacity (tons/hour) by using a inverter.
2. It applies to a wide range of materials, such as powder, granule, block and other materials.
3. Low maintenance cost , because of adopting resonance principle, so the vibration feeder has less power consumption and less wear characteristics.
4. It can be used in special conditions: according to different working condition, the vibrating feeder can be equipped with dust cover, liner plate, sealing part etc.
5. Smooth vibration and reliable operation.
6. Special grid design which can prevent material blockage. The clearance between grids can be adjustable.
7.Frequency conversion motor is optional, you can change the capacity by adjusting the motor frequency which is easy to control the feeding rate without starting motor frequently.

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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

The problems about vibrating screen spring

 When customers need vibrating screen spring, we should ask customers the following questions:

We need to know:

I. Customers require steel spring

1. the pitch diameter of spring

2. the wire diameter of spring

3. the coil number of spring

4. the effective coil number of spring

5. the free height of spring 

6. spring stiffness

II.When customers need rubber spring or rubber steel composite spring:

1. the inner diameter of spring

2. the external diameter of spring

3. spring height

4. spring stiffness

Structures and Features for Three types of Rotary Vibrating Screen Net Rack

Rotary vibrating screen is designed as a high-precision screening machine it is widely used for sugar, salt, wheat flour, rice flour, pigment, medicine powder, ceramic, silica sand, metallurgy zinc powder, aluminum powder, iron powder, calcium powder etc.

The net rack is the important component of rotary vibrating screen, here we will introduce the structures and features of three common net racks for rotary vibrating screen.

1.U-shaped net rack 
It belongs to the very commonly used model of rotary vibrating screen, first use the pressurized tooling to fix the thick wire diameter of screen mesh in the U-shaped groove, this layer is called meshed net, then the working net is tiled above the meshed net and clamped it. The advantage of this type of net rack is the replacement of working net in a faster rate, the framework of meshed net supports the working net to ensure the flatness of screen surface and prevent the impulsive force of material causing damage of working net, at the same time also will avoid the damage of working net due to the strike of bouncing ball that on the screen plate. The only disadvantage of this type of net rack is the overlapping part of meshed net and working net, which will influence the screen area.

2.Snap fastener net rack 
Rotary vibrating screen has two flanges: convex and concave. The concave flange is welded inside the screen frame, while the convex flange is a movable component, the screen mesh is placed between two flanges and locked up with the screw, the screen surface will tension naturally. Generally, this net rack structure is designed for the screen mesh with 12 mesh-30 mesh.

3.Dual A net rack
It also known as the single net with dual clamp net rack or light weight net rack structure. Rotary vibrating screen with this net rack is using two ring shaped circular hoop fix tension screen mesh. The main advantage of this type net rack is higher screening rate. 

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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

How to choose vibrating screen

How to choose which type of vibrating screen is suitable for your products?
In the industry of processing and production, only those customer purchased vibrating screen before has the knowledge of choosing a suitable vibrating screen for their production line. For the new users, normally 1/3 of them doesn’t know how to a vibrating screen. Let’s us share our experience and knowledge with you.

Overview of vibration screen
Different nature of materials used different type of vibrating screen. The screening process of materials refers to the size of material. The materials particle sizes which are bigger than the mesh size are unable to penetrate through it. Hence, it will leave at the surface of sieve mesh. The sieve separation must have the relative motion between the screen surface and material in the vibration screen. This motion enables the materials showing an active loose state.

Types of vibrating screen
·Circular Vibrating Screen
-Applicable industry: coal dressing, ore dressing, building materials, electricity and chemical industry and etc.
-Its motion is rotational.

·Drum Screen (Trommel screen)
-It widely used in screening wet materials.
-Its motion is like rotation of a drum

·Banana Vibrating Screen
-Applicable industry: sinter ore, sintering and palletizing, ore classification and dehydration classification and referral.

·Dewatering Screen
-Applicable industry: large sintering plant, palletizing plant, concentrator, coal preparation and coal washrag.

·Gyratory Vibrating Screen
-Applicable industry: abrasive, food, salt, sugar, chemical, pharmaceutical, mining, metallurgy and recycling.
-Its motions are horizontally at first then converted into elliptical then discharge in linear motion.

·Linear Vibrating Screen
-Applicable industry: plastic, rubber, ceramic, food, pharmaceutical, chemical, fertilizer and glass industries.
-Its motion is parabolic motion. Materials is been throw forward.

·Rotary Vibrating Screen
-Usage: screening, filtering, grading and removing impurity.
-Applicable material: powder, grain and liquidity material

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Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, andVibrating 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.

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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

The Function of Damping Spring used by our Vibrating Screen

The damping spring is considered as a spare part which used to reduce the vibration of the vibrating screen that created by the vibrating motor. It is widely use in the vibrating machine. It can used to control the amplitude of thevibrating screen.

Besides, damping spring helps to save the energy usage and measure the force that created by the vibration motor. Most of the damping spring is made of the galvanized spring steel; hence, it is rust resistance and always flexible. That is why the damping spring has long life span.

On the other hand, by adjusting the position of the spring pedestal, the adjustment of the screen surface angle can be achieved. The screening efficiency is related to the springs’ performance. Therefore, there are some conditions that need to take note while choosing the damping spring:

1.The design of the damping spring must according to the types of the materials used, the working environment and conditions, as well as the quantity of the materials used.

2.If rubber spring is used, the degree of bonding between the metal and the rubber must be take note in order to avoid the concentration of the surface adhesive stress.

3.Regular maintenance and replacement of the damping spring is needed.

4.Appropriate size and materials that used to made rubber spring is very important. When the screening machine is working, force will be created and this cause the rubber spring to consume the energy. Once this happened, the energy that consumed will be converted to heat energy. This will reduce the performance of the rubber spring as rubber is a poor heat conductor.  

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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

The Installation and Maintenance of Vibrating Feeder

1. The vibrating feeder is used for dosing, quantitative feeding to ensure uniform and stable feeding and to prevent material flow automatically, the vibrating feeder should be horizontal installed; For general material continuous feeding, it can be installed down-dip 10; For viscous material or material with larger water content ,the vibrating feeder can be installed down-dip 15.

2. After installation, it should leave with 20 mm of interval for vibrating feeder, the suspension device adopts flexible connection.

3. Before test run, all bolts should be tighten up, especially the anchor bolt of vibration motor, it shall be retightened after continuously operation for 3 to 5 hours .

4. The two vibrating motors must rotate in reverse during test run, if there is any abnormal phenomenon, please stop immediately and solve the problem.

5. During operating, the amplitude, current of vibration motor and surface temperature of motor should be regularly checked . The front and back amplitude must be uniform and no side shaking, the current of vibrating motor should be stable, if there is any abnormal phenomenon, please stop immediately and solve the problem.

6. The lubrication of vibration motor bearing is the key point for the normal operation of the whole feeding machine. The second-rate molybdenum 2 # grease should be refilled periodically on the bearing, normally fill the grease every two months, and fill once a month during the high temperature season. The motor should be repaired every six months to change the internal bearing.

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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

How to reduce noise during application and operation of rotary vibrating screen effectively part 2

This article is the continuation of previous one. PK Machinery will introduce you how to reduce noise during application of rotary vibrating screen continuously.

5.Rotary vibrating screen might locate at location that is nearby the other hard devices.
Solution: make sure the place nearby the rotary vibrating screen is clean to prevent the interference of the other equipment. Rotary vibrating screen should be placed at location which is 10 cm away from the other devices.

6. The screening body of rotary vibrating screen is uneven.
Solution: place the screening body steadily or add anchor bolts to fix. 

7.The damage of vibration motor or exciter bearing of rotary vibrating screen will cause adverse effects.
Solution: replace the bearing or add lubricating oil regularly.

8. The looseness of other fasteners.
Solution: Check the fasteners regularly and tighten it if it is loosen.

The maintenance of components must be done regularly to solve the problems that occurred during the operation of rotary vibration screen equipment. The life span of rotary vibrating screen will be extended and increase the screening efficiency by solving those problems. Hence, it increases the economic benefits.

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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

How to reduce noise effectively during application of rotary vibrating screen part 1

Rotary vibrating screen is a powder screening equipment with high accuracy. There are various noise might occur during the operation. The louder the noise, the greater the damage cause on rotary vibrating screen, thus it is very important to find out the causes of noise, analyze the reasons and find out the solutions to solve the problem effectively. The following are the reasons and effective solutions to overcome the noise occurs in rotary vibrating screen:

1.In order to fix rotary vibrating screen equipment during the process of transportation, the bolts will be added with the means of transport. However, the bolts that connected to rotary vibrating screen equipment might be left and causing noise during operation.
Solution: remove the bolts

2.The clamp bolts are not tighten.
Solution: check and tighten up the clamp bolts.

3.The clamp bolts are not completely jointed.
Solution: open and re-joint the clamp bolts, ensure the clamp bolts are jointed completely.

4.Due to the operation of rotary vibrating screen, the plate that is used for supporting the bouncing ball might be deviated from its place or it might be damaged.
Solution: re-locate the plate to its original place if it is deviated, or replace a new place if it is damaged.

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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.

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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

Suggestions for Reasonable and Effective Use of Rotary Vibration Screen

1. After complete installation of rotary vibrating screen, test run by putting in small amount of material, after confirmation of no creating any problem in installation and able to complete the screening, then it is ready used for formal production.

2. Screen mesh is one of the important components in the screening equipment. It plays the key role in screening efficiency and accuracy. Hence, inspect regularly for the tensioning or wearing on screen mesh, timely replace the screen mesh.
3. Rotary vibrating screen is relied on the vibrating motor as power source, thus vibrating motor is also very important, user should regularly add grease to the motor to avoid abrasion due to lacking of grease, and even burned.
4. Vibrating screen equipment will vibrate continuously during operation, so you should always check the loosening for some of the connection components in the equipment, such as clamp bolts, anchor bolts etc. Please check and tighten the components and parts of rotary vibrating screen regularly.
5. Rotary vibrating screen equipment will vibrate continuously during operation, thus do not place hard objects next to the equipment to avoid scratching or even lacerate the screen surface.
6. Vibrating screen uses bouncing ball, rubber strip and others rubber components, which can be damaged easily. The user should regularly check the damage of components, as damage will cause the leakage or mixing phenomenon during screening process, so please inspect and replace without delay.

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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.

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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

Introduction of vibrating screen

Henan pingyuan minging machinery Co., Ltd provides various types of vibrating screen & feeder whichare gyratory screen. Circular vibrating screen, rotary vibrating screen, linear vibrating screen, trommel screen, dewatering screen, vibrating feeder and vibration platform.

Gyratory Screen

Gyratory Screen is a new developed equipment particularly for urea .The main function is to provide accurate 

separation of materials without product deterioration, thereby resulting greater product yields at higher production rates. This machine consists of top cover, top screen fame, spacer, bottom screen fame, the base space and the screen box. The unique gyratory motion of the near horizontal screen surface and the available screen mesh

 cleaning system secure the gyratory vibrating screen quality as a high capacity product that efficiently developed for materials screening purposes.

Circular vibrating screen

Circular Vibrating Screen is a kind of new and highly effective vibrating screen that does circular vibrations and 

has multiple layers. Circular vibrating screen adopts cylinder postures eccentric block to produce strong exciting force. Its main body is connected by high strength screw bolts. A circular, elliptical vibration motion is created in order to sieve the materials efficiently. It is composed of screen box, screen mesh cloth, suspension (or support) device, underframe and motor.

Rotary Vibrating Screen

Rotary vibrating screen is designed as a high precision screening machinery. Round vibrating sieve  is composed of vertical motor,and eccentric weight installed at two ends.We can produce horizontal,  vertical, inclined  motions by adjusting the upper and lower eccentric weight.Diameter can be ranged  from 400mm to 2000mm,  with single or multiple screening decks.

Linear Vibrating Screen

Linear vibrating screen is designed with dual-vibration motor 

drive.Two synchronous motors are reversely placed so that the exciter generate reverse excitation force, the

exciting force generated by eccentric block cancel each other out on the parallel direction of motor axis,and 

stack together with the perpendicular direction of motor axis, so its trajectory is linear.Linear vibrating screen is 

suitable for particle size from 0.074 -5 mm,the maximum size should be less than 10mm.

Trommel Screen

Trommel screen is composed of motor, reduction unit, cylindrical drum, screen frame and sealing cover. 

Cylindrical drum screen is normally elevated at an angle at the feed end.

Dewatering Screen

Dewatering screens have a wide variety of application including dewatering, desliming, degritting, rinsing, 

scrubbing and washing. It is made up of screen cloth, vibration exciter, supporting system and motor. Materials 

such as sand, gravel, crushed aggregates, frac sand, industrial sands, mineral sands, hard rock, precious 

metals, coal, iron ore, salt and other granular materials which can be processed through a dewatering screen.

Vibrating Feeder

Vibrating Feeder is a kind of linear direction feeding equipment, It consists of feed spout, vibration body, vibrating motor, damping device. It can feed material for belt conveyor, vibrating conveyor, bucket elevator, vibrating screen, crusher etc.

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.

For more information, pls do not hesitate to contact us via : 

Web:http:www.pkmachinery.com

Mobilephoe:+86 18338953783

Tel: +86 373 579 9198

Fax: +86 373 507 1699

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