Screw the rules Introduction

Screw conveyor is commonly used in transportation equipment, rational use of screw conveyor can greatly reduce our production costs , including its use before the job , the job

, the job , the following January 1.
Screw conveyor safety procedures are:
First, the operator must ensure that sufficient classes before the break , to ensure energetic ; posts before to Wear flexible conveyor protective equipment.
Second, all the staff are not allowed to cross the conveyor screw conveyor during operation , are not allowed to open the cover , are not allowed into his body , or other debris

inside the screw conveyor .
Third, the torque converter Telescopic belt conveyor should be required to use the specified oil to maintain proper oil level , and add a protective cover.
Fourth, non- duty personnel on duty are not allowed to operate conveyors, non-native workers allowed to enter the conveyor corridor .
Fifth, strong overload conveyor screw conveyor is strictly prohibited .
Six , before operation
1 Press the technical operating requirements check the mechanical parts and no-load running test to confirm compliance with the requirements. Check the communication device

system, confirm contact signal clear and accurate.
(2) The inspection trials met the conditions of use , to confirm the control for safety and good safety records to confirm the time and confirm the name, archived for future

reference .
Seven , job
1 strictly in accordance with the control signal instructions for mechanical operation.
(2) Check the operation prohibited wear gloves mechanical parts .
3 on-site manual operation, the material to be self- terminus tail sequence starting after the front and rear ; spiral head from front to back loading terminus sequence

downtime.
4 in strict accordance with the material requirements of steering control output conveyor throughput , prevent material overflow warehouse, tank overflow tank or cause strong

squeeze .
5 are not allowed to open a variety of protective cover and tank cover shall not carry the machine repair, maintenance and dismantling .
6 To stop the job before unloading conveyor material inside , so that the machinery is in idle state ready for shutdown processing .
Eight , job
1 mechanical thorough cleaning , maintenance , lubrication and rust , machinery require water spray , shall close the electrical part cover to prevent water washout damp.
(2) on the transport corridor and the control of electrical machines for dust removal , dehumidification process , the liquidation shall be required to restore them closed

Screw the rules Introduction

Screw conveyor is commonly used in transportation equipment, rational use of screw conveyor can greatly reduce our production costs , including its use before the job , the job

, the job , the following January 1.
Screw conveyor safety procedures are:
First, the operator must ensure that sufficient classes before the break , to ensure energetic ; posts before to Wear flexible conveyor protective equipment.
Second, all the staff are not allowed to cross the conveyor screw conveyor during operation , are not allowed to open the cover , are not allowed into his body , or other debris

inside the screw conveyor .
Third, the torque converter Telescopic belt conveyor should be required to use the specified oil to maintain proper oil level , and add a protective cover.
Fourth, non- duty personnel on duty are not allowed to operate conveyors, non-native workers allowed to enter the conveyor corridor .
Fifth, strong overload conveyor screw conveyor is strictly prohibited .
Six , before operation
1 Press the technical operating requirements check the mechanical parts and no-load running test to confirm compliance with the requirements. Check the communication device

system, confirm contact signal clear and accurate.
(2) The inspection trials met the conditions of use , to confirm the control for safety and good safety records to confirm the time and confirm the name, archived for future

reference .
Seven , job
1 strictly in accordance with the control signal instructions for mechanical operation.
(2) Check the operation prohibited wear gloves mechanical parts .
3 on-site manual operation, the material to be self- terminus tail sequence starting after the front and rear ; spiral head from front to back loading terminus sequence

downtime.
4 in strict accordance with the material requirements of steering control output conveyor throughput , prevent material overflow warehouse, tank overflow tank or cause strong

squeeze .
5 are not allowed to open a variety of protective cover and tank cover shall not carry the machine repair, maintenance and dismantling .
6 To stop the job before unloading conveyor material inside , so that the machinery is in idle state ready for shutdown processing .
Eight , job
1 mechanical thorough cleaning , maintenance , lubrication and rust , machinery require water spray , shall close the electrical part cover to prevent water washout damp.
(2) on the transport corridor and the control of electrical machines for dust removal , dehumidification process , the liquidation shall be required to restore them closed

Stainless steel mesh belt and analysis of prospects for the development

In the international market , the stainless steel mesh belt products have been widely spread and applied , while the domestic current situation is that although some medium-

sized enterprises to start using Flexible Roller Conveyor stainless steel mesh belt assembly line production operations , but most enterprises are still the original artificial hand operation mode of

production

Style . This is China stainless steel mesh belt industry provides a vast potential market and prospects. Believes that the future of domestic stainless steel mesh belt market

prospects as follows:
One in product quality
But also on the yield and quality Power Roller Conveyor icing on the cake , to create a sophisticated , high-quality products , quality must be stable to be solid, not only to meet the exact process

requests , to ensure that the chain mesh belt mesh chain processing quality , while severely grasp enterprise manufacturing norms, every success goes to

Step progress abrasive tooling and manufacturing equipment, the use of chain life and stability robustness .
Two in the product categories
In stainless steel mesh belt on product categories have increased from time to time , not only to carry out horizontally , but also vertically launched , progressive product

breadth and depth to bedrock in the original extended from time to time extensions , and more important to Network access, trying to complete the development of large size

should strive

Network chain belt chain assembly machines.
Three on the number of products
In the mesh belt to be effective on a number of products increased and extended , not only to meet domestic mesh belt, mesh chain , chain enterprises growing consumer demand ,

but also to adapt to foreign consumption chain mesh belt mesh chain launched the latest situation and actively expand exports amount of active network chain belt for foreign

Chain enterprises to provide the needs of their network chain belt chain equipment .
Four in the manufacturing chain technology
In the manufacturing chain, either technically when developing new products and innovations will have a way out, not only to carry out domestic firm with existing equipment, a

variety of advanced research results chain , trying to reduce equipment with international advanced chain gap between more going to learn, digest international advanced

technology

Bedrock on the industry, academia , research new product development phase separation thoughts , to carry out sophisticated , efficient , pipeline, professional, automated

system linked the latest technology, invented with Chinese independent intellectual property rights of the modern advanced technology and manufacturing chain with chain .
Five in the implementation of applications
In implementing applications to speed up the implementation efforts, advanced technology and manufacturing chain with chain not only within the industry in the manufacturing

chain of large Chinese enterprises in the main rapid and timely application , but also to increase investment in the improvement of the whole industry chain system

implementation efforts, this will facilitate the opening of the chain equipment market

Show, further progress of the industry's overall level of the chain and manufacturing chain competitiveness of the enterprise center positive and important role.

The origin of roller conveyor

Roller conveyors in the History : Ancient Chinese high drum water overturned cars and mentioning , is the modern scraper bucket elevators and conveyors prototype ; 17th century

, began to apply ropeway transport Turn conveyor bulk materials ; 19th century , a variety of modern structural conveyor has emerged.
1868 , in the UK there has been belt ; 1887 , in the United States appeared screw conveyor ; 1905 , appeared in Switzerland steel belt conveyor ; 1906 , in the United Kingdom

and Germany appeared inertia 90 degree turn conveyor. Thereafter , conveyors manufactured by mechanical , electrical , chemical and metallurgical industries impact of technological advances ,

and constantly improve gradually from the inside to complete the delivery of the workshop , developed to accomplish within the enterprise , between enterprises and even between

cities material handling, become material mechanization and automation of handling systems indispensable component.

Do security work to ensure stable operation of the conveyor

Improve operational stability conveyors , conveyor domestic industries and enterprises need to solve the primary problem. Domestic conveyor equipment manufacturing enterprises

in the design and production process to Incline Belt conveyor increase investment, accelerate innovation, and strive to improve the braking performance of the conveyor motor to ensure that the

conveyor can quickly secure braking . In addition , the installation of the conveyor laying process , the domestic conveyor equipment companies work to be ready for installation

, considering the overall length of the Belt conveyor , height, and the specific load and the conveying speed , according to the work environment , to determine the components of the

conveyor quality and maximum sizes to ensure safe and efficient operation of the conveyor . Conveyors in the production process has played a significant role in a wide range of

applications, an important transport production equipment. In recent years , as China 's rapid economic development , chemical metallurgy, coal ports and other industries

growing demand for belt conveyors , belt conveyors transporting materials through , can shorten the production cycle, reduce engineering , shorten haul , save money, generate

significant economic benefits.

Roller conveyor can be selected based on carrying capacity

   Roller conveyor machinery and equipment is an important accessory , roller conveyor roller body production should mainly by the early cars, early school statically balanced

shaft interference fit welding , precision balancing school and other process group , widely used in a variety of packaging, transfer , and sorting heavy duty conveyor equipment . Roll

forming, the

To rust and corrosion , support , wear needs , the need to send or coated on the surface outside the grounds , such as painting, Jue plastic , chrome and oxidation processes.
   Roll quality directly affect the normal operation of the conveyor and operating costs . Roller according to different uses can be divided into ordinary and special roller

bearing roller . Common roller bearing in the normal section of the upper branch and lower branch roll , their role is to support the conveyor and materials ; special

The role of the Power Roller Conveyor of the transition guide , preventing side running belt and buffering . Groups of rollers are mounted on the conveyor . The basic requirements

roller group are: the use of reliable , rotary drag coefficient is small , low cost , with sufficient carrying capacity. Roll

Spacing should satisfy conveyor roller bearing capacity and sag two conditions . Due to excessive force required to encrypt roll , according to the actual needs identified by

the designer roller spacing.
   According roller belt speed and carrying capacity limits to choose . Conveyor roller set is an important component in the conveyor according to the role of the drive rollers

can be divided and redirecting rollers roll two categories. The role of the drive roller drive means is transmitted to the torque provided on the conveyor belt

; Redirecting roller comprises a conveyor belt at the end of the bend , increasing wrap angle of the drive roller guide rollers , tension rollers and the tensioning device for

the guide rollers. In general, the drive roller surface is covered with rubber or ceramic tube and the drive roller to increase the friction between the conveyor belt

Factor . Belt conveyor drive roller bearing capacity divided according to light, medium and heavy-duty three kinds , all of the roller surface adhesive surface . Redirecting

roller bearing capacity is also divided according to light, medium and heavy-duty three kinds , roller structure with the same bandwidth and with the same diameter of the drive

roller .

Transportation equipment classification and the classification of the introduction

Transportation equipment is in a certain line of material handling machinery continuous transport of materials , also known as pipelining . Transmission lines can be horizontal,

inclined and Incline Belt conveyor can also be composed space transmission lines , transmission lines are generally fixed. Conveyor conveying capacity , long distance

, Also in the transportation process while completing a number of process operations, so widely used.
Plate chain line : the chain plate towing plane transport workpieces to do sports, to achieve the purpose of the production process . A modular assembly line model, according to

the median worker process requirements set . Station is equipped with an electrical outlet , toolbox, feed box , so that the whole process to achieve delivery, there

Sequence .
Plug the pipeline : the chain drag Heat Exchanger tooling trolley , horizontal loop operation , the workpiece assembly .
Differential chain pipeline : the use of special aluminum alloy for rail , towing tooling plate with chain growth as the transmission medium . A modular assembly line model,

according to the median worker process requirements set . Station is equipped with foot switch, power outlet , station stopper , craft drawing board

, Lighting , etc., provided on line body lifting pan machine , lifting rotary table , so that the whole process to achieve automatic operation.

Conveyor how to improve the

Walking wheel unilateral chew on track - driven by the chain wheel mounted tilt too much tension screw tensioning device two uneven , uneven feeding occurs unilateral feeding

etc. caused .
Plate Extendable conveyor is the existence of many maintenance problems, large and very complicated, conveying slow chain speed V = 0.6m / s.
Chain drive very intense vibration , noise is also great, the side chain plate mill serious - is not coplanar sprockets , sprocket runout serious chain sag is inappropriate ,

chains serious distortions , and poor lubrication produce .
Wearing parts are there : sleeve , short axis , long axis , rollers, card board, outer chain plates, inner chain plate , bearings, door , etc., often have a certain number of

stocks can be security for .
In the improved production practices will demonstrate that the effect is very good, but also improve the transmission capacity , transmission capacity 35-80t / h, conveying 200

degrees around the firing material , which also is to reduce the rate of breakdown maintenance of equipment , for the annual production of 205,000 tons of active lime and high

Magnesium lime provides an important guarantee .
The existing plate screw conveyor are all removed, with B = 1000mm heat resistant belt conveyor to replace, with speed up to V = 3.0m / s. Head and tail sprocket center distance

15040mm, capstan motor power 9.5kw electric drum by a long strip of material is received at the trough, the belt

Machine is to use the entire length of the sealing cover, and set four dust point, so that we can achieve the effect of dust seals , but also to the production site to create a

very good working environment.

Conveyor classification and Future Trends

Conveyor The conveyor having a traction member generally include traction, bearing components, drive means, tensioning means for redirecting means and the support parts. Tractor

parts used to pass traction, can be used Extendable conveyor, drag chain or rope; Holds material bearing member to have the hopper, bracket, or

Spreader, etc.; drive to the conveyor to power, generally consists of motor, reducer and brake (stopper) and other components; tensioning devices generally have two kinds of

screw and a hammer, can maintain a certain tension pulling element and sag in order to ensure the normal operation of the screw conveyor; support for supporting the retractor

Cited documents or carrying member, can be idlers, rollers, etc.
A conveyor having a traction member structure is characterized by: the material to be transported to the traction member mounted on the bearing member are joined together, or in

directly mounted on the pulling element (such as belt), the pulling element or chain around both of the rollers connected to form load transportation of materials, including

branches and not transported

The material being a non load branch closed loop, continuous motion using the traction member conveying materials.

Such a wide range of conveyors, the main belt conveyors, slat conveyors, trolley conveyors, escalators, moving walkways, scraper conveyor, buried scraper conveyor, bucket

conveyor, bucket elevator , overhead conveyors and overhead lifts and so on.

Conveyor without pulling element different structure and composition, working member for transporting the material is not the same. Their structure is characterized by: the use

of rotational movement of the work member or reciprocating motion, or by the medium flowing in a pipe conveying the material forward. For example, the roller

Conveyor working member of a series of rollers, the roller rotates to transport materials; screw conveyor working member of the spiral, spiral chute rotates in order to push the

material along the trough; vibrating conveyor working member of material groove, trough reciprocated to convey placed

The materials.

Conveyor will be toward the future large-scale development, to expand the scope, automatic sorting of materials, reduce energy consumption, reduce pollution and other aspects of

development.

Large transmission capacity, including large-scale, large single length and large transmission angle and other aspects. The length of the hydraulic conveyor belt has reached

more than 440 km length of nearly 15 km of single, and has appeared composed by a number of Taiwan Contact B two places "belt conveyor path." Not

Few countries are exploring long-distance, large capacity continuous transport of materials better conveyor structure. Expand the use of the conveyor, is developing in high

temperature, low temperature conditions, corrosive, radioactive, flammable substances in the work environment, as well as capable of delivering fiery, explosive

, Easy to agglomerate viscous material conveyor

The development trend of the conveyor

① continue to large-scale development. Large transmission capacity, including large-scale, large single length and large transmission angle and other aspects. Hydraulic

conveyor length reached 440 km or more. Belt conveyor length of nearly 15 km single, and has appeared composed by a number of Taiwan Contact AB

Two of the "conveyor belt road." Many countries are exploring long-distance, large-capacity transport of materials better continuous conveyor structure.

② to expand the use of the conveyor. Developments in high temperature, low temperature, corrosive, radioactive, flammable substances in the work environment, as well as capable

of delivering fiery, explosive, Pellet, sticky material conveyor.

③ the conveyor structure to meet the automated material handling system to control stand-alone asked for. As used in automated sorting post office parcel trolley conveyor

sorting operation should meet the requirements.

④ reduce energy consumption in order to save energy, the field of conveyor technology has become an important aspect of research. Has one ton material handling energy consumed

by one kilometer conveyor selection as one important indicator.

⑤ reduce all kinds of conveyors in operation generated dust, noise and emissions.

Screw conveyor conveying principle and structure characteristics

Commonly known as auger screw conveyor is suitable for granular or powdered materials horizontal conveyor, inclined roller chain conveyor, vertical transportation and other forms.

Transmission distance varies according to deformity, usually from two meters to seventy meters.
Features: Screw rotating shaft is welded spiral blades, blade face delivery of materials based on a solid surface different type, belt type face, leaves and other types of face.

Screw conveyor screw axis in the direction of movement of the material with a terminal thrust bearing to the accompanying material to the helix axis

Reaction force, the captain longer, should be added to intermediate hanger bearings.
Conveying principle: rotating spiral blade for Gravity roller conveyor passage of the material transported. So that the material does not rotate together with the screw conveyor blades

is the material force of its own weight and the frictional resistance of the material conveyor chassis.

Conveyor Control Circuit

From conveyor control system hardware control panel, door and check the signal, programmable controller, inverter speed control system, the control system architecture as shown

1.Chart speed inverter to complete the function, and logic control part is completed by the PLC.PLC responsible for the various signals

Send to a logic processing from the stop signal transduction responsible, while frequency converter will be their transport to the PLC operating state, forming a two-way

relationship.System also with the car is equipped with coaxial connection with rotary encoder and PG card, complete

Into a speed test and feedback form a closed loop speed and position loop.In addition, the system must also be equipped with a braking resistor, when the elevator is running

slow, the motor is in the national renewable energy generation, electricity back to the sensor, the pressure is increased with elevator lifts four-story office building designed

for AC

DC.The suppression through the analysis, the input signal shows the system including protection, selection of operating conditions, the on / off control 26, the position

detection, call ladder control.Output speed signal 21, including on / off, up, down, control signal converter, alarm, lighting

Such as Mitsubishi FX2's - 64MR PLC.Yaskawa use 616G5 inverter CIMR selected above on.Based - G5A 4022 Universal  Telescopic belt conveyor, technical features are: asynchronous motor direct

control current to maintain high output motor torque; suitable for various applications, at low and very

Surgically smooth start; This is the automatic adjustment feature can achieve a variety of high-performance motor control; its U / F control, vector control, closed loop ü / F

control, closed loop vector control melt into four control modes, including closed-loop the most suitable elevator control vector control

requirements.Rotary main motor encoder and a coaxial connector, through Pike Ka (also called encoder interconnect) for motor speed and position feedback elevator.Use Omron 's

light pulse pulse incremental rotary encoder.Coaxial 1024 rotary encoder with car

Connections, resulting in the A, B, A two-phase pulse phase pulse.When 90 degrees ahead of the B-phase pulse, the motor rotates country; when A-phase pulse lags behind the 90-

degree phase B pulse, that is, in reverse state.According motor A, B phase pulse phase sequence, you can determine the motor shift.According

To A, B pulse frequency (or period) can be measured motor speed.If A, B phase pulse edge before or after the counting pulses generated can be formed on behalf of the forward and

reverse displacement displacement flexible conveyor table pulse.Rotary encoder pulses This card output to Pique, Pike Ka adjustments will make this calculation

The feedback signal converter.

Vibrating conveyor trough structure

Vibrating conveyor trough generally made of steel plates, with its width and height to the required transmission capacity to adapt its length is based on the requirements of the

material transported in the distance. Tank with a spring or chain link with hinged support or suspension, by the driving means to produce vibrations.
(1) vibrating conveyor trough cross-section
Straight sidewalls flat tank from a single piece of steel from repression, for general transportation; oblique sidewall flat tank. When conveying hot materials can be material

on the side to minimize friction and deformation; slotted wall tank. Tank body stiffness and have a replacement flat; semicircular or elliptical

Tank. For conveying relatively thin, circular sheet materials (such as food, can lid, caps, etc.); straight walls with flat lid flat tank. Dust-proof and water proof, to make

the material being transported does not hit the top cover, so to limit the thickness of the material in the tank; tubular tank. Use for

Conveying or feeding seals required. The majority of the material being transported, the adoption of such a tank must not be above the centerline of materials; tank with an

arched roof, flat roof tank with the same, but its more rigid; V-shaped trough. Transmission capacity is very low for the occasion, you can continuously

Places to concentrate, were thin remove particulate material stream.
(2) vibrating conveyor trough material selection
For overloaded conveyor trough to obtain strong solid. The tank can be low carbon steel, wear-resistant steel, stainless steel or other special alloy steel, according to

requirements in a wide range of materials can be selected. Tank lining these materials may also be used, may also rubber, plastic

Or ceramic.
Tank lining material according to the performance of the material being transported and economic factors to select, size 25 or 50mm for less highly abrasive materials, high-

density alumina porcelain lined, bonded with epoxy resin The flat on the tank, this ceramic lining has been successfully used to

Transport rolling mill coke and other materials. There are also polyurethane plastic lining, this lining has been used to transport wet, thin, abrasive materials.
Other commonly used in the lining material is 304 stainless steel, it is particularly suitable for conveying corrosive and abrasive materials. Material in the feeder or conveyor

sliding action on the stainless steel worn very smooth, you can prevent the accumulation of material, but also thereby extending its life. When the need to

Vibrating conveyor to control the noise level within the allowable range in the standard, and sometimes the body located in the groove in addition to the lining, but also to

adjust the conveyor speed, inclination and length of stroke.
(3) vibrating conveyor trough structure
Vibrating conveyor trough is generally forming or pressure plate welded structure, depending on the load conditions, the groove width, transportation of materials

characteristics, expected degree of wear of the tank and replacement requirements to choose. Power Roller Conveyor trough body frame designed with beams, beams fixed on the solid

side

The longitudinal groove in order to ensure that the various operating conditions of the size and shape of the tank constant.
Pressure molded tank with a single piece of extruded steel bottom and two sides, which ensures that the powder material does not leak. This tank lining, especially the use of

thin stainless steel plate forming the lining, can be used in flat bottom ensures easy replacement.
Plate welded tank from the bottom and side panels three steel plates. The maximum width of the tank can be spliced ​​to 3650mm. Between the sides and bottom with a continuous weld

seams. This construction can be equipped with flat lining, the lining can be quickly and easily replaced.