The metal detector ZM roller conveyor used in the food industry

In the food industry to detect the metal impurities mainly use metal detector, metal detector for food is divided into two kinds: belt type and pipe type. Belt conveyor is a conveyor belt, put the food ZM rubber belt conveyor in the belt through the probe if metal containing impurities will alarm shutdown or exclude. Pipeline type is mainly free floor type, food free fall, after the probe will alarm and then discharged.
At present, the food with a metal detector, the best number of Germany, in the Chinese foreign products are made in japan. Requirements for metal Japanese food is very strict, they put forward at the China food processing standards, most of the domestic products are not up to the requirements, some special food even German products are not up to the ZM drag chain conveyorrequirements, such as: meat, salted vegetables, canned. Some make the product qualified domestic practices belong to the business secret, is not convenient to disclose. (metal detector is the electromagnetic principle, very susceptible to interference. The test block standard in general by the manufacturers to set)

ZM check weighers Pipe type metal detector

The whole production process of metal detectors are generally unable to complete monitoring fluid products, such as ham sausage meat, chewing gum, oral liquid, real-time online elimination of metal ZM belt conveyor manufacturerimpurities, ensure the safety of products transported to the next process. In general these products are made of metal packaging into finished products after, generally unable to use metal detectors to detect. In addition, liquid or viscous ZM roller chain conveyor substances detected in canned or packaged, can effectively improve the accuracy of detection.

Technology is a measure of the standard carbon steel roller conveyors

With modern advances in the development of market economy and technology , steel roller conveyors have followed the development of the entire transportation industry has brought tremendous impetus and economic value , particularly in the steel roller conveyor is widely used when , it was tech support and help , to the present, the content of science and technology has become a standard level of production delivery , whether the problem can be quickly transported material , but also users are most Chain conveyor  about , a manufacturer can produce What kind of steel roller conveyors , the key is to master the high degree of technology , with high-tech level and innovation capability, the user needs can be produced machinery and equipment . Science and technology can not be ignored for the purposes of the manufacturer , when the superior technology used in steel roller conveyors, will better reflect his value. There are many different transportation industry manufacturers , including the use of transportation equipment customers know that the difference between roller conveyor is able to bring the benefits of enterprise customers are very different , different manufacturers, their grasp skill levels are the same, which also resulted in no difference in performance there is uneven on the market , the current overall situation of the domestic steel roller conveyors are also not very good , high-quality products in short supply, while the carbon sub- points steel drum has already spread, sales to customers Telescopic conveyor in the factory is also a serious damage , a direct result of the decline in productivity , affecting the development of the entire production of the enterprise. To create a brand with significant influence , we must start from a technical , from the perspective of the user experience to view, create , what kind of steel roller conveyors customers will have more help, well worth every a manufacturer's in-depth study , of course , not only the content of component production technology level of the best standards to measure the performance of a steel roller conveyors , but also become the development of good steel roller conveyor support , good technical skills in order to have better not

Roller Conveyor

Science and technology can not be ignored for the purposes of the manufacturer , when the superior technology used in steel roller heavy duty conveyor, will better reflect his value. There are many different transportation industry manufacturers , including the use of transportation equipment customers know that the difference between roller plastic chain conveyor is able to bring the benefits of enterprise customers are very different , different manufacturers, their grasp skill levels are the same, which also resulted in no difference in performance there is uneven on the market , the current overall situation of the domestic steel roller conveyors are also not very good , high-quality products in short supply, while the carbon sub- points steel drum has already spread, sales to customers in the factory is also a serious damage , a direct result of the decline in productivity , affecting the development of the entire production of the enterprise. To create a brand with significant influence , we must start from a technical , from the perspective of the user experience to view, create , what kind of steel roller conveyors customers will have more help, well worth every a manufacturer's in-depth study , of course , not only the content of component production technology level of the best standards to measure the performance of a steel roller conveyors , but also become the development of good steel roller conveyor support , good technical skills in order to have a better future

Rubber belt conveyor works

Mainly by the two endpoints cylinders and closed on its sleeve belt components. Driven conveyor rollers rotating drum called a drive (drive roller); Another is to change only the direction of movement of the Telescopic belt conveyor drum called a bend pulley. Driven by a motor through reducer drive rollers, conveyor and plastic chain conveyor drive roller rely on friction between the drag. Usually the drive rollers are mounted at the discharge end, to increase traction conducive drag. Material from the feed end of the feed, the rotating conveyor fall, relying friction drive conveyor transported to the discharge end of unloading.

A belt conveyor is widely used in the coal industry

Conveyor coal industry widely used in a belt conveyor for conveying bulk, long distance in powder, granular, or finished mine conveyors  material delivery device. Widely in metallurgy, mining, coal, power plants, chemical plants, building materials, ports and other industries. According to the different transport processes can be check weigher  stand-alone, multi-level multi-machine Relay transport. Depending on the installation location can be arranged horizontally, tilted arrangement, plus tilt the level layout and other forms.

Plus rotary sieve grain conveyors can be used not only in the kiln workshop

Before the screw conveyor grain plus rotary kiln screen not only can be used in the workshop , finished workshop can also be used to prevent cement debris into the packaging

machine packing machine cause damage , Belt conveyor does not work . Kiln rotary screw conveyor installation screen , pre-wet mixer blades should be replaced every month from 1 to 2 times

After each replacement blades need emergency repair work two , stop the kiln 2 ~ 3h. According to incomplete statistics , the annual replacement of mixing leaves this one direct

loss of nearly 10,000 yuan , 30,000 yuan belt conveyor design more indirect losses plus rotary screen .1994 due to damage to equipment containing debris reasons phenomenon did not happen, thereby

increasing the operating rate ,

Calcining kiln to ensure the normal station to further improve and yield when we applied the screw conveyor rotary screen , with a diameter of 500mm, length 450mm. Rotary screen

available raw mill old rotary screen or welded steel punching volume , should be based on the length and diameter inlet and hoist

Screw shell width to determine . Sift Heads with four thick 3mm, width 50mm, length 196mm bearing iron skeleton , with the tail end cap sieve support . Spiral axis welding on

the inner rear cover open a hole Φ50mm , the rotary screen when working from the raw material to the discharge port spiral leaf goes into

Into a rotary screen , through the sieve into the hoist and then sent to the inlet shaft kiln via a transfer device. Rotates with the rotary screen , the screen on the debris

chute fall Yang Angle formed in the rear end cap , axis along the spiral trough waste fell from the hole . because the former rotary screen , the back-end are welded spiral

shaft.

Sealing food conveyor idlers

Grain conveyor idlers seal : roller often work in dusty premise load roller slime water sometimes still running, on both sides of the outdoor groove roller conveyor also because

of rain along the shaft gap penetration, roller chain conveyor cause bearing dust cover and cage rust, grease deterioration. Improved dense

Seal structure is an effective measure progress roller life . With automatic tensioning device with the use of self-moving tail , can be achieved in the context of the conveyor

downtime , for mobile plastic chain conveyor and telescopic belt conveyor tail , and greatly improve the transport efficiency of the conveyor . Automatic tensioning device winch

By the pressure sensor automatically controlled tensioning size , fluid pressure in the hydraulic tensioning device produced by the hydraulic cylinders on the conveyor belt by a

tensile force required tight belt conveyor operating conditions , operating conditions can be based on the tape machine need to adjust the tension of size.

Grain conveyor bearings: bearing failure is mainly due to moisture, dust or foreign invasion, bearing corrosion, deterioration caused by grease . Increase the diameter of the

ball , using the open -sided nylon cage, increasing the axial clearance of roller bearings can effectively prevent bearing seizure .

Its life is more than five times the ordinary bearings , power consumption can be reduced by about 18%.

Food conveyor outer cylinder : the salt spray corrosion resistance material such places severe corrosion of the outer cylinder surface , the surface of the conveyor will

accelerate corrosion and wear , is to solve this problem , the development of anti -static 160mm reinforced nylon outer tube is prevent corrosion of the outer cylinder to break

a new path. Hand roller conveyor

Grease , roller should use lithium grease , its high dropping point , fat loss is not easy , but also non-perishable caking extend roller life, reduce friction drag.

Works rib belt conveyor resolved

Corrugated sidewall conveyor belt conveyor , also known as the edge , which is in the plane of the conveyor belt vulcanizing a princess with both sides of the bulkhead and can

shrink the corrugated ribs excel at one,rubber belt conveyor  like a bucket-shaped cross-section , the machine English to FLexowell, meaning flexible bucket . When turning the corner on the drum

, Wall corrugated tape can stretch their sides , and in the straight run time and still intact.
The machine works the Incline Belt conveyor same as bucket elevators , that the force balance by internal friction angle equal to the angle between the horizontal plane and the material
Thus , the material surface force balance position is a fixed position , the material surface in this position , often referred to limit the material surface , in the promotion,

limit the material over the surface of materials affected by the decline in G , and below the surface of the material in this relatively still fighting , the material together

with corrugated ribs on the belt

Duplexes roller conveyor

Duplexes roller conveyor bottom is suitable for transporting flat articles , the main part of the oil roller ,Weight Sorter  frame , frame, legs , and the drive unit of the drive means . With

throughput , running light, high efficiency , to achieve a variety of line shunt transport , suitable for the

Heavy goods transport . Roller conveyor can be divided indeed acting and plot- two.
From the structure is divided into :  hot water heat exchanger linear conveyor, turning conveyor, lifting transfer machine , road fork points, merging conveyors and other forms.
Divided from the roll material : metal roller , steel roller and so on. Thus can be applied to a variety of different materials and goods transport environments.
From the frame material is divided into : carbon paint, carbon steel , stainless steel profiles, aluminum profiles , etc.

Knowledge of mechanical transport silicone cloth Product Introduction

Silica cloth series
Silicone rubber coated fiberglass cloth is high temperature, corrosion , high strength glass fiber cloth, impregnated with silicone rubber calendar or made ??, is a high

performance , multi-composite 90 degree turn conveyor materials and new products. Has been widely used in aerospace , chemical, oil , large-scale power generation equipment, machinery, metallurgy ,

electrical insulation and construction.
Silicone rubber fiberglass cloth main performance characteristics:
1 for cryogenic temperature between -70 ℃ to 280 ℃. Good insulation properties .
2 . Resistance to ozone , oxygen, light and weathering , excellent weatherability field use , life up to 10 years
3 has a high insulation properties, dielectric constant 3-3.2 , breakdown voltage 20-50KV/MM
4 good chemical resistance : 90 degree conveyor resistance to oil, water [ scrub ]
5 High intensity: both soft and malleable, cut processing
Main purpose :
1 Electrical Insulation : Silicone fabric has a high level of electrical insulation and can withstand high voltage load , can be made of insulating cloth , casing and other

products.
2 Non-metallic compensator : silica cloth can be used for flexible pipe connected devices, which can solve the thermal expansion and contraction of pipe damage , silica cloth

with high temperature resistance , corrosion resistance, aging resistance , good elasticity and flexibility It can be widely used in petroleum , chemical, cement , energy and

other fields.
3 corrosion aspects: Silicone rubber coated fiberglass cloth can be used as pipes, savings and external corrosion layer , excellent corrosion resistance , high strength, is an

ideal anti-corrosion materials .
Four other areas : Silicone rubber coated fiberglass membrane materials can be used as sealing materials, high temperature corrosion resistant conveyor belt, packing materials.
Color: silver , gray, red, black , white, transparent color , orange and so on.
Coating: Single or double-sided coating

Conveyor belt temperature Protection Act introduced

Roller and belt conveyor belt friction , its temperature measuring instrument , proximity detection roller mounted devices ( transmitters ) issued over-temperature signal , the

received signal is received by heat exchange manufacturers the three -second delay as part of the implementation of the action , cutting off the motor power supply, automatic conveyor stop switch , played a Thermal protection.
Head and mining conveyor coal level protection . If a conveyor operation or an accident can not be blocked or coal bunker is full , parking lots or other reasons , the head of

the pile of coal , coal- contact position sensor corresponding position DL and coal , coal bit to take immediate action to protect the circuit, so that biography

Conveyor belt stops immediately . Then air to water heat exchanger continue to the coal face , the back end of the heap of coal transported by the station in the rotation after the occurrence of an

appropriate stop until the loader automatically stop running .
Each type of conveyor should be in the right place , multi- belt will easily break . At this time, we should pay attention to maintenance .
Mine belt conveyor belt , if it fails, for example, the motor burned, damaged mechanical transmission parts , belt or chain broke , belt slippage , the belt is installed on the

unexpected magnetic switch passive components can not be turned off or the Secretary is not closed, then the normal speed

Control .

Belt conveyor applications and features

    Belt conveyor is a continuous conveying equipment in the most efficient, most commonly used as a model . As a simple structure, less noise during operation , widely used in

mining , metallurgy, hydropower construction sites , ports and industrial enterprises within the assembly line . In China loading and unloading of bulk cargo ports collection ,

the belt has become Crushing equipment a necessary device in the handling and transportation of coal , bulk grain , ore and other professional pier used a lot of long distance, high production

efficiency, fixed belt conveyor , as well as belt conveyor machine as the main ship loaders , unloaders , reclaimers and stacker machines.
    Comparison with the intermittent operation of the crane , belt conveyor has the following advantages :
    1 ) belt conveyor roller chain conveyor can be kept in the same direction for the transport of materials , loading and unloading without stopping , can be transported at high speed , with high

productivity. And this high productivity is far from intermittent crane can be compared. For this reason , the weight and cost of the device are the same, much less than the

productivity of the crane belt machine productivity .
    2 ) As the feed belt uniform , while its speed and relatively stable , and therefore , in the course of which the power consumption is not changed ; the intermittent

operation of the crane of the wide variations in power consumption . Therefore, the calculation of power and belt conveyor drives in terms of weight and cost less than most of

the intermittent work cranes.
    3 ) For the same reason, the maximum load of the conveyor belt and the difference between average loading cranes generally small and the load difference is very significant.

Screw conveyor trends

Screw future trends will mainly the following aspects:
    1 , large capacity , high speed, long life.
    2 , environmentally conscious design , reduce pollution and achieve green design goals.
    3, the space can be curved Gravity roller conveyor conveyor . Horizontal and vertical screw conveyor lines are limited intelligent transport of materials , in recent years there has been flexible

screw conveyor , conveyor and other spring .
    4, the intelligent development . Future use of computers in close contact screw machine , suitable for process control, intelligent operation . Material handling,

installation and maintenance of the machine should be able to achieve intelligent management.
    5, low energy skate roller conveyor consumption and reduce energy consumption . The vast majority of screw machine energy consumption on the friction losses . Thus reducing the energy consumption

is the study and design of screw machine urgent problem and direction of development .
    6 , the combination of composite conveyor toward the large-scale development . Use screw conveyor , combined with a variety of continuous conveyor machinery, to complete the

complicated material handling. Including large-scale large transmission capacity . Single length and large transmission angle and other aspects.

Belt conveyor maintenance and repair

Belt conveyor belt conveyor is also called, is the ideal continuous and efficient coal transportation equipment, and other transport equipment (such as locomotive class),

compared with the long distance 90 degree conveyor, large volume, continuous conveyor, etc., and reliable operation, easy to automate and centralize control,

Especially for high-yield and efficient mine, coal mining belt has become mechatronics technology and equipment of key equipment.
Caesar conveyor belt material is a common problem, the reasons are multi-faceted. Smart Electrical remind you focus is to strengthen the daily care and maintenance.
1 reprint reprint scattering material at the point of the point spread mainly in the fall feed hopper, guide trough, etc.. If severe overload Turn conveyor, belt conveyors

guide trough backgauge rubber apron damaged steel guide trough at design time far away from the belt so that the material is relatively long rubber apron out of guide trough

. The situation can be transported in the control capacity, enhance maintenance be resolved.
(2) when the concave section of the belt material spreading vacant belt concave segment interval when the radius of curvature smaller concave segment will generate vacant belt,

then the belt into a trough situation changes, because the belt has left the trough idlers, generally groove angle becomes small, so that part of the material spread out.

Therefore, in the design

Stage should be possible to use a larger radius of curvature of the concave section to avoid this from happening. If the mobile mechanical ship loader, stacker-reclaimer device

in order to shorten the trailer and the concave section designed here no arc transition interval, when the belt width smaller redundancy selection easier Caesar

Material.
3 when the scattering material deviation belt deviation scattering material is because when the belt is running two edge height changes, while high, while the other side is low,

the low side of the material from spreading out, processing method is to adjust belt deviation.

Plastic drum kits do not wear what factors

Causing plastic drum kits do not wear the following two main factors : 1, the rubber material rubber material is resistant to ensure plastic drum kits are an important factor

affecting the performance parameters of Power Roller Conveyor rubber plastic bag is good or bad , and its market plastic bag into the main import and domestic rubber coated, general

Sexual selection of domestic rubber mostly mining conditions and mining conditions for the case of the majority of poor selection of imported high wear-resistant plastic sheet .

2 , the adhesive strength is spiral conveyor insufficient during use of the drum , often receives friction and centripetal force for a long time , if the choice of the adhesive is not

Sticky and effectively , it will cause the drum in advance unglued , causing system downtime .

Roller conveyor production of materials is what
Roller conveyors , depending on racks and drum two parts , the general roll into carbon steel, stainless steel , including plastic , polyurethane , etc.
Frame is divided into , stainless steel, aluminum and so on .

How to improve the performance of idlers

Idler roller conveyors as a key component in the material transport 90 degree conveyor belt to withstand the resistance of more than 70% , as the utilization of large , large frequency of

replacement parts , in the selection, use , and maintenance are required in consider some aspects to improve the performance of idlers . Next

Side effects , I will introduce the main reason for the use of performance roller what .
First, the sealing effect is not good :
Sealing roller is used within the axial non-contact labyrinth seal , which is characterized by the inner and outer seal member is formed between the gap to achieve a small

tortuous sealing against dust is better, but the waterproof effect is poor, and mine vertical conveyor production conditions are dusty , and dust with water ,

So used roller seal must be dust-proof , waterproof effect. If the water will corrode the inner roller bearings, into the dust will damage the bearings , and ultimately affect

the service life of the roller .
Second , roller shaft concentricity difference:
Drawing roller shaft axis , which is characterized by a surface roughness and dimensional accuracy can be achieved without processing requirements of the drawings , with up
Convenient, saving labor . However, due to the optical axis of the production drawing tire tool wear due to factors such as dimensional accuracy is unstable, often have exceeded

the phenomenon , coupled with the transport process could easily lead to bend , so that the roller shaft concentricity deviation , roller shaft two side installation of the

bearing clearance can not be guaranteed ,

Thereby rotating roller resistance increases , affecting the life of the roller .
Third , bearing concentricity difference:
Roller bearing is used for stamping , and tube skin with the Department without processing , bearing sleeve welded directly on the skin . Stamping bearing skin is not round or

barrel at the end with the inequalities are easy to cause skin after welding ends of the cylinder bearing different axes , resulting in reduced bearing clearance , rotation

Resistance increases, the rotation is not flexible.
Idlers we all understand the importance of , and that the choice for idlers need to seriously consider seriously. The above three points that need to refer to when selecting

roller aspects , but also in the use and maintenance of rollers that need focused attention on three points .

Conveyor protection device selection and installation

Conveyor protection device for the current selection and installation of lack of uniform industry standards, using the actual effect is often less than ideal situation , this

paper based on actual experience in engineering applications , one by one rope switch, deviation switch, slip switches, tear switches, material flow switch ,

Blocking material switches and level switches and level meter, Airport conveyorsystem protection device selection and installation of the main principles and precautions for a

detailed exposition. This helps in practice fully conveyor protection device security protection.
In thermal power plant coal handling system , conveyor ( also known belt ) the operational status of the production process is directly related to the safety of equipment and

personnel . So , how to make Metal detector for food protection device stable and reliable operation in the production of full security protection , with

Very important practical significance. In fact, the conveyor protection device in the actual application process is often a lot of problems , the use of the effect is often

unsatisfactory. The reason, in addition to on-site installation environment is complex, factors such as the device itself is not perfect , the selection and installation

Unreasonable scientific often the most important factor .
Conveyor protection device brands, in various forms, of varying quality, how scientific selection, proper installation , always make designers , users, and construction and

installation personnel are difficult issues . This paper mainly thermal power plant coal handling system conveyor protection device

Example, a detailed discussion of a variety of conveyor protection device selection and installation.
Various conveyor protection device selection and installation
Conveyor protection device mainly refers to the rope switch, deviation switch, slip switches, tear switch , material flow switches, blocking material switches and level switches

and level meter , etc. They are mainly used for belt conveyor system equipment running status detection alarm , emergency stop and

The control joint .
Rope Switch Selection and installation
Rope conveyor emergency stop switch is used as a site operator protection. The widely used rope switch is generally passive mechanical rope-way switch . Rope switch at regular

intervals ( approximately 40m) fixedly mounted on both sides of the bracket belt conveyor , each of

Rope tied between . Case of an emergency , you can pull the rope at any position along the belt conveyor , rope switch trigger action to achieve emergency shutdown .
Selection principles and precautions:
Under field conditions and operating conditions selected automatic reset or manual reset products. If the on-site inspection fewer personnel and longer belt , you can choose to

automatically reset the product ; automatically reset when selecting products , the best in the control system can achieve motion capture memory function,

Action in order to determine the specific location of the switch , and the switch from the control logic to prevent automatic restart immediately after automatic reset device .

Some products can be set during installation to automatically reset or manual reset , if the conditions best choice for remote operation with product instructions and remote

reset

Sidewall Conveyor Belt optimization improvements

To make the body sidewall conveyor belt carrying capacity is increased, sidewall conveyor belt body lateral bending load after minimal sidewall conveyor belt body that enhance

lateral rigidity is to reduce the lateral load deformation increases with body belt body carrying capacity of key . Lateral sidewall gravity conveyor body rigidity value refers

With a transverse vertical cross section of the body, with the body of free support on both sides of the edge, because sidewall conveyor belt body weight caused by band bending

under the weight of the body with body width value ratio. High lateral stiffness of the lateral rigidity sidewall gravity skatewheel conveyor technical standards is not greater than 0.05, the

right ribs lose

Belt structure with optimized and improved, additional lateral stiffness to enhance the lateral stiffness detector layer is 0.036, with a reduced lateral deformation after

carrying body, can increase the bearing capacity of 15% to 20%. Improved lateral stiffness large heavy sidewall conveyor belt is an effective measure to the body of the multi-

level baseband

Canvas interlaminar tensile body set up by special mixing and calendering dedicated polyester staple fiber composite layer, ie within a layer of polyester staple fibers in one

direction along the lateral arrangement with body buried layer. This has the sidewall conveyor belt body lateral bending capacity enhancement of the use of special composite

layer

The belt body lateral rigidity than conventional construction increased 2.5 times sidewall conveyor belt, even if its value is determined by lateral rigidity increased to 0.036

0.09.

Metal Conveyor Product Applications

The metal Flat belt conveyor is a belt type  now on the market are many types of conveyor belts different material properties and use of the product is not the same place

mainly on the application of the metal conveyor belt  :
1, the food network with biscuit industry cooling injection machine belt bending machine belt  chocolate coating machine B-shaped belt. While the production of eggs,

biscuits machinery spraying machine B B Elevator conveyor and meat imported machinery slim belt saving mesh belt. 2, instant noodles and rice industry; steamed

Belt fried boxes, hanging drying boxes, shredded knife, knife blade surface comb face comb, pivot, forming boxes. 3, a variety of frozen food, dehydrated vegetables,

topped with stainless steel pipeline equipment chain conveyor chain. Conveyor chain, belt, support shaft. 4, glass mesh belt furnace, decorating

Furnace mesh belt, bottle machine belt, mosaic mesh belt  specifications crank type, straight shaft, diamond, double helix model. Materials are A3 low carbon steel, DCY13

heat-resistant steel, ICY18N19Ti steel, oor18Ni14Moo2Cu2 acid resistant steel. Furnace conveyor belt commonly used material

Quality as the 310S, 314  high temperature of above 1100 ℃.