Screw conveyor

SeriesScrew Conveyor is widely used in a food transportation equipment, chemicals, building materials and other sectors, mainly for conveying powder, granular, small block material.
Shandong Dengfeng Flour Machinery Co., Ltd. is a professional production of screw conveyor manufacturers, in "good quality" business philosophy, for the screw conveyor prices and sincere service for our customers with the best products of the screw conveyor, I hope to grow with our customers. The company's main products are all kinds of small grinding machine, flour machine, clean food and other best-selling products, praised by users.

The determination of highly-socialized conveyor speed

Product put the in the process of operation has been a process of operating section, running speed is formed by dropping the running distance and throughput was to determine, or determined by the requirement of technological process, main is to slow the process time is needed to frequently change the chain, and adopts frequency conversion governor to adjust the chain running speed.

For object conveying line segment, the speed of running is according to the discretion of the ctgrain Screw Conveyor, selection within 8-15 m/min is very appropriate, high speed, conveyor to produce larger vibration and noise; Speed is too low, but also can make the car group accumulation does not reach the designated position.

The application of the conveyor is not only reflected in the mining industry, industry as we know, every day we have been able to access the food industry production is also inseparable from the conveyor equipment, in modern in modern food production enterprises, are everywhere to see belt conveyor, belt turning machine, hoisting machine, bottle conveyor, roller conveyor, mesh/scraper chain conveyor, chain conveyor screw conveyor, conveying equipment, and the use of the conveyor equipment, is widely used in various industries to the national economic production.

Practical installation techniques and use of belt conveyor

Belt Conveyor at the end of the standard in order to ensure the conveyor belt is always at the center of the roller and the roller run online, installing a roller, frame and rollers, must meet the following requirements:

Set hang hang a conveyor belt conveyor belt, conveyor belt first article spread on no-load period of roller, wai after driving drum, apply on the roller of overloading section again. Hung a ribbon can use 0.5 1.5 t hand winch. In article taut band connection, the tension device of the drum should be moved to the limit position, on the car and spiral tension device to pull to move in the direction of transmission device; And pick up device to make the vertical roller moved to the top. Before the taut conveyor belt, should be installed reducer and motor, good braking device with tilting conveying confidential. Belt conveyor after installation, the need for idling of commissioning.

Support structure must be in a straight line, and keep the horizontal level. To this end, after driving drum and roller rack installation, should be the center line and level of conveyor final alignment. Then frame fixed in the base or on the floor. After fixed belt conveyor, can furnish the feeding and discharging device.

With the rapid development of science and technology, conveyor has spread to every corner of the human life and areas, use is also more and more widely. Save a lot of time for mankind, labor, People's Daily life is becoming more and more inseparable from the conveyor. Conveying machinery according to the operating mode is divided into: 1:2: belt conveyor screw conveyor 3: bucket elevator 4: roller conveyor 5: measuring conveyor 6:7: plate chain conveyor mesh belt conveyor, focus today about the installation of belt conveyor.

Installation engineering of belt conveyor, belt conveyor frame installation is from the frame, then install sections progressive middle frame, finally furnish tail stock. Before installing the rack, the center line of the first to pull on the length of the conveyor, keep the conveyor centerline in line is the important condition of normal operation of conveyor belt, so when installing sections frame, must aim at the centerline, leveling, as well as which frame to the centerline of the margin of error, the captain per meter is + / - 0.1 mm. But on the conveyor length error must not exceed 35 mm to the center of the frame. When all the single section setting and alignment, can connect every single day.

Install the roller in the frame, transmission device and tension device installed, can be installed up and down roller roller frame, make the conveyor belt has slowly to the curved and ways of the roller spacing for 1/2 ~ 1/3 of the normal roller spacing. Roller is installed, should make its rotary flexible light.

Driver installation drive, must pay attention to make the belt conveyor and belt conveyor drive shaft centerline vertical, make the middle of the width of the driving drum with the centerline of the conveyor, the axis of the gear reducer and parallel transmission axis. At the same time, all shaft and cylinder should be leveling. Axis horizontal error, according to the conveyor width, allowed in the range of 0.5 1.5 mm. In the installation drive at the same time, can install tail wheel tensioning device, such as tension device of drum axis, should be perpendicular to the center line of belt conveyor.

Screw common classification and uses

Screw Conveyor is widely used , be sure to use the screw conveyor for routine care and maintenance to prolong the life of screw machine . So how do you conduct routine maintenance and management of the screw conveyor ? Here we briefly introduced .
         Screw conveyor transport of materials from the perspective of the direction of displacement divided into horizontal screw conveyor screw conveyor screw conveyor and vertical two types , mainly used for all kinds of powder , granular and small block, such as loose material horizontal transport and vertical lift , the aircraft is suitable for delivery of perishable, viscous , easy caking or high temperature , afraid of pressure , there is greater corrosive special materials . Press the conveyor made ??of high strength plastic , also known as food conveyor screw conveyor , spiral elevator, mainly applied to transport bulky products . Such as cardboard boxes , crates , bottled water.
        Screw machine is widely used in various industries , such as building materials , chemical industry, electric power, metallurgy, coal charcoal, food and other industries , for horizontal or inclined conveying powder, granular and small bulk materials , such as coal, ash, slag , cement, grain etc. , the material temperature is less than 200 ℃. Screw machine suitable for transporting perishable , viscous , easy caking materials . In concrete mixing station , screw conveyor role has been the greatest manifestation . Chain plate conveyor is widely used in food, beverage, chemical and other industries. Used to achieve improved transfer of products , and other types of hoist conveyor compared with the conservation area , continuous conveyor and so on.
        Rotating spiral blade for screw conveyor passage of the material transported , so that the material does not rotate together with the screw conveyor blade force is the material of its own weight and the frictional resistance of the material conveyor chassis . Rotating shaft screw conveyor spiral welded 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 the thrust bearing to the terminal with the material to spiral axial reaction force , the captain longer, should be added to intermediate hanger bearings.
        Screw in use , must pay attention to the daily maintenance , this will maximize the good fit with sand dryer , ensure the production capacity and efficiency, but also extend the life of the equipment .
1, should be timed to the bearings, gears and chains and other transmission parts lubricated .
2 , box delivery machine after disabling spiral blade should be checked for wear , wear serious welding .
3 , screw conveyor throughput can not be overloaded, otherwise no row materials , causing the screw shaft bending and box up bad .
4 , the transmission medium ju higher , you should pay attention to whether changes in the cabinet expansion card with a place without freedom , if urgently address .
5 , screw conveyor in operation , the noise piercing should be playing cover inspection , troubleshooting.

Some affect the efficiency of the screw conveyor conveying the main factors

Several impact Screw Conveyor transport efficiency main factors:
1 material viscosity , easy caking. Viscous material , the material is easy to stick to the screw conveyor blades and the inner wall , making the material handling process resistance increases directly affect production efficiency.
2 spiral diameter . Screw diameter also affects the size of the transport efficiency . Under the same conditions , diameter larger than the diameter conveyors efficient small throughput and transmission efficiency is high .
3 inclination of the screw conveyor and transmission distance.
4 . Material size , temperature, moisture , abrasive and corrosive . Specific parameters can refer to: Screw technical parameters and throughput formula.
5 screw conveyor speed . Related to the conveying motor power size. Screw conveyor operating speed on the characteristics of the material are closely related , high- speed conveyor assembly demanding the production of , and better balance . The following table has four kinds of speed choice, in fact, more conservative, especially in large, medium size , speed is low , resulting in greater waste. Recommended in the selection table to take a higher speed, better transportation efficiency .
Screw conveyor is a more extensive use of transportation equipment , usually used for small pieces of powder or granular materials transportation . For different materials , the choice of model is not the same . General requirements for the food industry are mostly stainless steel screw conveyor , the more stringent requirements of the material for other industries according to need. For some materials with twining , more choice of shaftless screw conveyor , this type of conveyor can effectively reduce the material wound on the spindle case , greater throughput .

Screw conveyor transportation of materials, cautions

Screw Conveyor transportation of materials, cautions :
1 Begin feeding should gradually increase the feed , the feed should be uniform , do not look at the amount of added equipment rated , or will cause congestion, drive overload , the life of the device also has a certain impact.
(2) There shall be no rigid material large bulk materials , otherwise it will get stuck spiral , spiral machine damage .
3 Do not start feeding , such as starting, and then carried to the material, to do no load starting conveyor.
4 To stop feeding before stopping , until the machine finished material handling equipment then stop running .
5 To regularly frequent inspection equipment components such as fasteners are not loose , tighten if loose a timely manner , to do early prevention .
6 undesirable conveyor in operation under cover to avoid causing bodily harm , but also requires frequent moving parts add oil.
More extensive use screw conveyor for conveying relatively wide range of materials that can transport powder, granular and small block materials , the use of the screw conveyor dust environment is generally larger occasions , conveyor bearing long-term dust will aggravate the wear and tear it to periodically lubricate the mechanical maintenance , allowing the conveyor to better carry out the job .
Screw conveyor can be inserted into a variety of organs mining reclaimer , the vast majority can reduce the amount of clean-up , there is a continuous conveyor also has the function of having a clean , stable power will be able to start close to the rated capacity of productivity , productivity can reach the rated 55% -70 % while other transportation equipment, the average efficiency of only 40% -50% of this balance nature of the work to the rear conveyor system is important to match ; various mechanical energy than continuous conveyor conveying equipment small grab .
General can achieve custody transfer , conveyor can easily be closed within the discharge point , reducing the loading point to take the height , or take other measures to eliminate dust can greatly reduce dust pollution of the environment , to achieve continuous conveyor operation , because it is a continuous operation Therefore, small vibration , low noise .
Dynamic load reduction due to the quality of the structure decreases, extends service life and reduce worker fatigue mechanical ; operation is simple , easy to implement automatic control ; due to continuous operation , the average efficiency is relatively high , the quality of productivity than the same type of screw conveyor LS confidential small .

What is the use of screw conveyor taboos

What is the use of screw conveyor taboo :
Screw Conveyor can be inserted into a variety of organs mining reclaimer , the vast majority can reduce the amount of clean-up , there is a continuous conveyor also has the function of having a clean , stable power will be able to start close to the rated capacity of productivity , productivity can reach the rated 55% -70 % while other transportation equipment, the average efficiency of only 40% -50% of this balance nature of the work to the rear conveyor system is important to match ; various mechanical energy than continuous conveyor conveying equipment small grab .
1 , in operation if there is tape deviation phenomenon should make timely adjustments parking , do not use force in order to avoid friction increases .
2, the working environment or material temperature is below -10 degrees above 50 degrees do not work
3, do not transport acidity or materials containing organic ingredients .
4 , the conveyor belt or by people not pedestrians to avoid personal injury.
5 , conveyance conveyor insulation problems arise to do stop processing , the motor must be grounded to avoid leakage .
6, the belt slipping a hand to lift the prohibition zone, so as to avoid injury.
These are the need to pay attention when using screw conveyor taboo issue .
General can achieve custody transfer , conveyor can easily be closed within the discharge point , reducing the loading point to take the height , or take other measures to eliminate dust can greatly reduce dust pollution of the environment , to achieve continuous conveyor operation , because it is a continuous operation Therefore, small vibration , low noise . Dynamic load reduction due to the quality of the structure decreases, extends service life and reduce worker fatigue mechanical ; operation is simple , easy to implement automatic control ; due to continuous operation , the average efficiency is relatively high , the quality of productivity than the same type of screw conveyor LS confidential small .