What is the required dimension for conveyor roller selection?

1. We can provide standard roller suitable for belt widths of between 400mm and 2400mm.
1) Belt width: 400mm, 500mm, 650mm, 800mm, 1000mm, 1200mm, 1400mm, 1600mm, 1800mm, 2000mm, 2200mm, 2400mm
2) Roller diameter: 63.5mm, 76mm, 89mm, 108mm, 133mm, 159mm, 194mm, 219mm
3) Roller length: 200mm – 2500mm

2. Could you provide the following specification for conveyor roller selection?
1) Shaft Length A __________mm
2) Gauge Length B __________mm
3) Face Length C __________mm
4) Roller Diameter D __________mm
5) Across Flats E __________mm
6) Wall Thickness F __________mm
7) Shaft Diameter G __________mm

Rotary & Linear Vibrating Screens for Pegmatite were Delivered to Namibia

Yesterday,linear vibrating screen and rotary vibrating screen were dispatched to Namibia from Qingdao China,before leaving factory,client came to PK Machinery for inspection all items and watched the trial run,he spoke highly our equipment and expressed his desire to cooperate again in the near future.
The screens handle 50 tons pegmatite material per hour feeding rate in total,detailed information shown as follows:

Linear vibrating screen
Model:2ZSH1536
QTY:3 units
Construction:carbon steel
Type:vibration exciter type
Deck: double deck with opening 1 and 0.5mm
Motor:Y132M2-6,2*5.5kw,380V50Hz3phase

 

Rotary vibrating screen
Model:XZS-1800-2S
Deck:double deck with opening 0.210 and 0.09mm
Construction:material contacts parts are SUS304

Hope above information can be helpful if you have similar sieving problems.Further information please click:www.pkmachinery.com

How to select conveyor cover?

Application and Working Principle：
YD Conveyor Covers is well known as conveyor belt hood and used to protect transported material and conveyor belting, idlers and structure. Effectively they improve personnel safety; reduce loss of material to wind and stop grime and rain from damaging the idlers and belt.
YD Conveyor Covers is mostly used in power plant, cement factory, iron and steel factory, chemical factory, coal, port, jetty, mining and other enterprise. Our company provides fixed-closed type and open type. The color of the rain covers are mainly in blue, grey and white, and red (depend on client’s need).

Selection guidelines
1). Please tell us your belt conveyor’s width____mm and length____mm;
2). If possible, please indicate the opening width____mm of the conveyor cover;
3). Please indicate the thickness of the cover you required____mm;
4). Every piece conveyor cover’s length is 970mm, except overlap installation, the effective length is 900mm.
5). The material is colorized galvanized steel plate, the thickness are 0.5mm, 0.6mm, 0.8mm, 1.0mm.
6). Coud you tell us will you need fixed type conveyor cover or open-close type conveyor cover?

 

 

Part open-close type（generally for large belt conveyor width） 

 

Whole open-close type

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.

What is your Spring Festival wishes?

5 Ways to Solve Bucket Elevator Ash Leakage

(1) Whole Casing flange gasket of bucket elevator damages or no flange gasket, please change new gasket, glue with the sealing glue, retighten the flange bolts.
(2) If material leaks from the head section and bottom base gap, please add a gasket or sealant.
(3) If altitude difference is too large, it will increase material feeding pressure, please change the material feeding method, add a feeding buffer device.
(4) Drive chain occurs idle rotation, please adjust the chain length. 

(5) Casing installation is not straight, please adjust perpendicularity of the casing length. 

 

What is the Role of Auxiliary Transmission Motor?

Generally speaking, main motor of bucket elevator is used in normal operation,while auxiliary transmission motor is generally used in the repair time.
When the main motor breaks down,starts, or during the repair process, users can use the auxiliary transmission motor to help the main motor start up, ordrive the main motor at low-running speed. The connection structure of auxiliary transmission motor and the main motor is simple,the operation is reliable.

 

What are the Comparative Edges?
1. When the main motor occurs troublesand cannot operate normally, at first please stop feedingmaterials.In order to protect the bucket traction pieces and hoppers from damage, operators need to clean up the materials which are hung in the air, then operators can start up the auxiliary transmission motor to clean the residual materials inside the hoppercompletely .
2. Compared with main motor, the power of auxiliary transmission motor is much smaller, so with the help of auxiliary transmission, bucket elevator slows down. According to this characteristic, it’s easy to overhaul bucket elevator, clean up hoppers and traction pieces through bucket elevator observation window.

Linear vibrating screen used for sesame classification and impurity removal

Previously, farmers always drythe sesame shell, then sesame seeds will come out by itself, in order to improve the separation efficiency, we recommend customers to choose linear vibrating screen, linear vibrating screen is mainly to solve granular materials screening problem , it canseparate the sesame shell and sesame seeds well.
Material fed from the feeder evenly into linear vibrating screen material inlet, a number of specifications of materials will be produced through multi sieve meshed, over size material and under size material will be discharged respectively from the outlets. The structure has the advantages of low energy consumption, high yield, easy maintenance, simple and fully closed structure, no dust overflow, automatic discharge, and it is more suitable for production line operation. Maximum 400 mesh screen mesh can sieve 7 kinds of materials in different particle size.

 

Cross-border Business of XinXiang Held 2016 Spring Festival Celebration

On January 19th, 2016, dozens of foreign trade enterprises took part in the Spring Festival Celebration actively which was sponsored by cross-border business of Xinxiang. The whole activity has took 5 hours with happiness and joy atmosphere as well as achieved great success.

 

At the beginning, the hosts announced the opening of Spring Festival Celebration, and then Mr. Zhao who is the association president of cross-border business of Xinxiang gave a speech. After that, all of involved enterprises performed programs to make a very exciting and enthusiastic moment. What’s more, during this activity, it is also set some games and prize presentation to make it more interesting and colorful. Near the end of this activity, we also selected three excellent programs and awarded prizes. At last, all of us took a group photo to mark this memorable occasion.

 

Moreover, PK Machinery also energetically joined this celebration and showed our spirit outlook well. We do believe we can achieve great performance and this goal will come true in the new year.

 

Bucket Elevator Casing Embossing Process

Embossing is commonly seen in the bend place. Generally speaking, according to the force requirements of bucket elevator middle casing, steel plate will be folded into geometric shapes (such as rectangle, etc.) or grooved shape in order to ensure and strengthen the intensity and stiffness of casing side. Through this kind of technology, it can enhance bucket elevator rigidity so that to prevent its deformation caused by uneven force. Meanwhile, material consumption and investment costs could be saved as well as to ensure the aesthetic appearance.
1. Stiffness Properties Advanced
Stiffness refers to the ability of material or structure to resist elastically deformable. The steel plate intensity and rigidity of bucket elevator casing can be enhanced by embossing process. Therefore it will reduce the casing deformation.
2. Improve Strength Properties
Strength refers to the ability of metallic materials to resist permanent deformation and fracture under the external force. Making a flute in the proper position of bucket elevator casing can increase its local intensity and reduce component breakage costs.
3. Reduce Costs
Ensuring the same intensity and rigidity, it can save steel plate dosage and reduce production costs by embossing process.

How to become a professional buyer for Circular Vibration Screen?

How to receive the circular vibrating screen quotation in a short time?
You need to offer following parameters if you want to buy a circular vibrating screen:
1.Material Parameters:
(1)Material name:________.If possible,please provide material photos.
(2)Handling capacity:_________ton per hour(t/h)
(3)Density of material:________ton per stere(t/m³)
(4)Material size:______mm.
(5)Water content:________%.
Equipment Parameters:
(1)Layer number:________layer. for example,If you want to get 3 kinds size range material,the layer number should be 2 layers.other situations and so on.
(2)Mesh size of each layer:________ mm. For example,if material size is from 5mm to 20mm,you want to divide into 3 kind size range material.they are 5mm~12mm,12~16mm,16mm~20mm,so the top layer mesh size should be 16mm,and the bottom layer mesh size should be 12mm.
(3)Material size distribution:_________%.for example,if you want to get above three kinds material(5mm~12mm,12~16mm,16mm~20mm,)you need to tell us their size distribution:5mm~12mm____%,12~16mm____%,16mm~20mm____%.
(4)Driven device parameters:
Brand requires:________ABB/SEW/Siemens/Domestic
Voltage:3 phase______V_____Hz.
(5)Other
What’s the upstream equipment above screen inlet?_______we need to know the loading method.
What’s the downstream equipment under screen outlet?_______we need to know the discharge method.
If you can offer above information,you will receive a accurate quotation in a short time.

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.

 

How to Choose the Scraper and Chain of Buried Scraper Conveyor? (II)

1. Selection of  Scraper Conveyors Chain
On the basis of meeting the adaptability to material, the chain should be selected reasonably according to maximum working load.
1) Bush roller chain should not be used for dust conveying, and should be first selected to transport the material which is easy to float chain. But in general, die forging chain is used as the first choose.
2) Base on the assurance of maximum chain working load, in order to maximize its carrying capacity,
it is best to use the chains which allowable load is close to maximum working load.
3) On the condition of meeting strength requirement, it should be try to reduce chain weight.
4) Different kinds of chains are used for different arrangement form.
MS / MC / MG buried scraper conveyors: three types of chains can be used, bush roller chain, die forging chain and double chain.
MZ / MP buried scraper conveyors: die forging chain
MK / ML buried scraper conveyors: die forging chain and double chain

 

2. Selection of Chain Pitch
The selection principle is to minimize the maximum dynamical load and up & down movement speed of chains. If the chain shake is too big, it will destroy normal material transportation, especially vertical conveying. And big dynamical load will lead to the increase of chain weight or decrease of its service life. 
3. Selection of Scraper Pitch
The scraper pitch can be determined according to the conveyor trough width, but it must be adaptable to chain pitch. If the scraper pitch is too big, it can lead to relative slippage between various material layers in conveyor trough, so as to increase energy consumption and even destroy normal material transportation. On the contrary, too small scraper pitch will increase the traction weight and energy consumption. 
The scraper pitch generally equals to chain pitch. When the load is small, the scraper pitch can be chosen the twice of chain pitch. Meanwhile the material features should be taken into consideration, for example, when conveying viscous material, the manufacturer can install a special form scraper, to remove the sticking of material inside conveyor trough, and prevent most viscous material bonded on the inner wall of conveyor trough.

Do you know difference of TD75, DTII and DTIIA series belt conveyor?

Specifications of TD75, DTIIA, DTII series belt conveyors are the national standard of China belt machine, which represent three types of conveyors.During the model selection,the standard should be noticed. How to choose a proper type to save client’s cost? The following is the characteristics of the three types of conveyors:
TD75 series conveyor is the first standard belt conveyor, it can be used to convey small lump, granular, powder material, due to simple structure, low cost, easy maintenance, convenient maintenance, and large transport capacity,TD75 series belt conveyor becomes a common machine,it can be single or multi sets running to form a horizontal or inclined conveyor system.
DTII series belt conveyor is designed according to the components. The designers can design and assemble the conveyor according to the requirements of transportation, different terrain and working conditions,it has a wider use compared with TD75 type.
DTIIA series belt conveyor a heavy duty machine is mainly used to transport large density, large transport capacity and long transmission distance, conveyor selection is determined according to many parameters.

 

Long life chain trough scraper conveyor

1. Scraper chain conveyor should be no-load running for a certain time when start the equipment every time, Then feed the material after the equipment working normally. We should keep feeding the material evenly, sudden feeding or over-load running is not allowed.
2. Should not stop the machine with load if there is no special condition.
Generally,we should stop the equipment when the material in the trough were discharged completely after we stop feeding the material.
3. If the whole production line is consist of sets of conveyor, we should
start the last set first when start the whole system, then start the others one by one . The order will be opposite when stops.

 

4. Operators should check the spare parts of the conveyor timely, especially the conveyor chain and driven device.
5. During operating, we should protect the conveyor from the iron, large hard objects and impurities to avoid damage the equipment.
6. Should keep all the bearing and driven device lubricated well. However, should not lubricate the conveyor chain, support guide rail, head wheel and tail wheel etc.
7. In general, the buried scraper conveyor should be minor repair every half year, medium repair every year and overhaul every three years. For overhaul the buried scraper conveyor, we should remove and clean all the spare part, replace all the wear part. For the motor and reducer, should be maintained and repaired according to their technical requirement.

2015 Winter Games was Held at PK Machinery

Last week, for the purpose of arousing the staff’s enthusiasm effectively and enriching their lives, PK Machineryhas carried out winter games. Meanwhile, this winter games have achieved great success.

 

In the beginning, the leader of our PK Machinery gave a speech to present the spirit of our company and explain activity rules, after that we started games competition. This winter games include 6 items which were tug-of-war contests, rope skipping, set shot, hold the ball race, across the “river” by touching the bricks and ride a bicycle slowly. All of us were involved in the winter games and the atmosphere during the games kept warm and high all the time. In the end of the winter games, we selected the winners of each game and awarded prizes for them. Through this winter games, we became a more united and stronger team.

 

During our working time, we also have many activities like this. PK Machinery has done better and better to enrich our life and promote our company to develop better.

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.

 

  How to solve bucket elevator plugging problem ?

Bucket elevator plugging may occur during the operation of bucket elevator,according to long time experience and analysis of bucket elevator technical personnel , we can add a vibrating screen to solve the plugging problem due to large blocks enter into the pipeline,rubber belt slip problem can be avoided by increasing the tension force to increase the lifting height of bucket elevator.However, more than 90% of the plugging problem is caused by the bucket scraper system connecting pipe plugging problem due to the unreasonable design. Here PK Machinery will introduce two solutions as follows:
The first method:Increase the angle of the connecting pipe to increase the rough and fine material flow rate in the pipe,reduce the possibility of plugging,but this solution need to raise the height of scraping conveyor.
The second method:Add a vibrator the connecting pipe side add vibrator to achieve the material being conveyed smoothly ,interlock the vibrator and material scraping system to make it vibrate intermittently,the vibration time,frequency and interval period should be set up as per bucket elevator working condition to realize automatic operation.The solution can completely solve the connecting pipe plugging.

How to debug linear vibration sieve?

1. Linear vibrating screen generally adopts three-phase alternating current. Please ensure correct power supply connection ,no conductive material, specialized alternating current socket.
2. The base must be fixed firmly by bolt to guarantee a same height difference front and back supporting seat , the feeding end and discharge end in a horizontal plane, otherwise screening effect will not reach the requirements of qualified products.
3. Check the flatness of screen mesh, ensure screen mesh is installed on the frame correctly, keep the screen mesh in the same horizontal plane to prevent screen tilt, and screening materials not up to the ideal state.
4. Check the each component of linear vibrating screen to ensure they’re firm and reliable, all the bolts must be tightened without looseness.
5. Ensure there is 30-50mmgap between linear vibrating screen and the surrounding fixtures, and check whether screw is locked well or not.
6. Take off the transportation support before starting up the linear vibrating screen, and add the support again until the vibrating screen operation becomes normal.
7. Pay attention to observe the material trajectory after starting up, adjust the screening state according to the material screening trajectory. 

Bucket elevator conveyor system equipment

Bucket elevator is one of the most commonly used lifting equipment with the advantages of high throughput, high lift height and smooth running.When using bucket elevator,the cooperation methods between bucket elevator and upstream equipment should be noticed,please see it as follows:
a.Hand feeding: the material in the bag can be fed into the conveying equipment through the feeding port.
Advantage:The lifting machine can run normally without material blockage.
Disadvantage: Hand feeding required higher physical strength.

 

b. Feeding through Bin connected with chute: the feeding method saves human cost. Loading machine and vibration hopper are allowed under available working condition, hopper can store material and also brings buffer function, which will avoid overload problem because of too much material.

c. Common feeding and conveying equipment: belt conveyor, screw conveyor, scraper conveyor and so on.
In addition,if you do not know what equipment is suitable to cooperate with the bucket elevator,please feel free to contact our engineer,we will give you a best solution: http://www.pkmachinery.com/