How to improve the life of belt conveyor?

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There are many ways that affect the service life of the belt conveyor, and the most important thing is to do the following:

1. Adjust the direction of material flow in a timely and accurate manner.

The direction of material flow has an important impact on the service life of the conveyor belt, and the material flow should run in the same direction as the conveyor belt, which can greatly improve the service life of the equipment.

2. The claw pulley at the transition of the conveyor and the concave. Practice has proved that the transverse strength of the steel rope conveyor belt is insufficient, and when starting, the repulsion pulley causes the local force of the conveyor belt to be too large, resulting in tearing of the conveyor belt, and the umbrella part of the falling pulley is changed to the falling pulley, which can completely solve this problem.

1] Formula.

The first k is the no-load operation power coefficient, the second k is the horizontal full load coefficient, and the third k is the additional power coefficient. l is the horizontal projection length of the conveyor. q is the conveying capacity t hConvey upwards to take the plus sign and take the negative sign downward.

In the simple formula, p-motor drum shaft power (kw).

f-coefficient of resistance of the idler, f=

c-The resistance coefficient of the conveyor belt, bearing, etc., the value can be found in Table 1;

l- Horizontal projection (m) of the center of the motorized drum and the reversing drum

GM - the weight of rotating parts such as conveyor belts, idlers, and reversing rollers, the values can be found in Table 2;

Burning beam v-belt speed (m s);

qt - conveying volume (t h), qt = iv * density of conveyed materials, the relevant values can be found in Table 3;

iv - conveying capacity, the values can be found in Table 4;

h-conveying height(m);

b-Bandwidth (mm).

2] Belt conveyor.

How to choose the right motor power.

The motor power should be selected according to the required power, and the motor should be operated under the rated load as much as possible.

1. If the power of the belt conveyor motor is too small, there will be a phenomenon of "small horse-drawn cart", resulting in long-term overload of the motor.

2. If the power of the belt conveyor motor is too large. There will be a phenomenon of "big horse-drawn cart", and its output mechanical power can not be fully utilized, resulting in a waste of electric energy.

3. In general, it is calculated according to the belt bandwidth, conveying distance, inclination angle, conveying volume, as well as the characteristics of materials and humidity.

<> belt conveyor, also known as belt conveyor and belt conveyor, is a very widely used conveying equipment, and can be seen in the conveyor line of almost all industries. The working principle of the belt conveyor is the continuous conveying of materials through friction. The belt conveyor that can be used for the transportation of various types of materials plays a transitional role in the transportation of materials in various industries, and is a vital auxiliary equipment in the production line, so it is crucial for the selection of belt conveyor

Practical selection tips for belt conveyors.

1. When selecting the belt conveyor, it is necessary to clarify the technical parameters of the belt conveyor industry, the material of the conveyor belt, the bandwidth and other aspects. Under normal circumstances, the rubber belt is suitable for the working environment temperature between -15 and 40 °C, and the temperature of the conveyed material should not exceed 50; Plastic tape has the characteristics of oil resistance, acid and alkali resistance, but it is difficult to adapt to climate changes, easy to slip and age.

2. It is necessary to correctly select the belt speed of the belt conveyor. For horizontal conveyors with longer lengths, higher belt speeds can be selected; The greater the inclination angle of the conveyor, the shorter the conveying distance, and the lower the belt speed. For example:

In the case of large conveying capacity and wide conveyor belt, a belt conveyor with higher belt speed can be selected; When it is used for the conveying of materials that are easy to roll, have large particles, strong adhesion and are easy to dust or have high requirements for environmental sanitation conditions, the belt conveyor with low belt speed is selected; If it needs to be used in conjunction with the unloading truck, the belt speed needs to be controlled, and when the conveyor conveys fine crushed or relatively small material conveying, the allowable belt speed is as is; When it is used for feeding or conveying materials with a large amount of dust, the belt speed can be selected, or it can be determined according to the characteristics of the material and the process requirements.

The belt conveyor can not only convey a variety of materials, but also has the advantages of economic applicability, large conveying capacity, good continuity, stable work, etc., according to the specific needs of users, a single unit can be used for conveying work, and can also transmit materials for long distances in a rugged and complex environment, so as to realize automated and integrated production operations; In the fields of mining, coal, electric power, etc., belt conveyor equipment is widely used, which is an ideal choice for long-distance, large-volume, and continuous transportation.

1.According to its own transportation volume to select the corresponding belt width, the machine in the process of transporting materials, to keep the belt conveyor continuous in its load range.

2.Usually do a good job in the maintenance of the belt, do a good job in the maintenance of the belt conveyor, and improve the operation efficiency of the belt conveyor. The overhaul and maintenance of the belt conveyor is mainly carried out for the belt conveyor cleaner, the belt itself, the power unit and the electrical protection device.

1) The belt conveyor cleaner should be checked and cleaned regularly, pay attention to whether there are any materials left around when transporting goods, and at the same time, the cleaner presses too tightly on the surface of the belt or roller or the gap is too large, which can easily cause belt damage or reduce the cleaning effect.

2) For the belt itself in the transportation of the material uniformly, properly placed on the belt, uneven placement will lead to the belt in the process of operation deviation, thus wear to the belt, belt deviation and abnormal wear is the main reason for the shortening of the belt life, so the use effect is not good.

3) The maintenance of the power unit requires the mechanical and electrical maintenance personnel to frequently observe the grease lubrication and heating of these parts, and find that these equipment have oil leakage or lubricating oil penetration in the observation, and check the cause in time, and replenish the grease to the parts of oil leakage and penetration; For equipment with abnormal heating, it is necessary to stop the machine for maintenance and check the cause in time to avoid accidents.

4) Protect electrical equipment to prevent accidental damage.

At the same time, it is also necessary to improve the business quality of the operator, after all, the machine needs to be operated manually, so the operator plays a vital step.

1. The device can automatically sprinkle water for over-temperature and fire accidents, which can effectively prevent the occurrence and development of accidents.

2. The comprehensive protection of the belt conveyor is equipped with intelligent or ordinary multiple deviation sensors, and the deviation of the belt conveyor is monitored, when the belt of the belt conveyor is misaligned, after 20 40s delay, the monitoring device cuts off the power supply of the belt conveyor to achieve deviation protection, and the deviation sensor is not limited according to the number of installations.

3. The device monitors the coal level of the coal bunker or funnel of the belt conveyor by connecting the intelligent or ordinary switch-type coal stacking sensor, and in the case of coal stacking, the angle of the coal level sensor is offset, the contact is closed, and the monitoring device cuts off the power supply of the belt conveyor.

4. By connecting the intelligent or ordinary switch smoke sensor, Shandong Zhongmei can monitor the fire and the gas condition of the surrounding environment caused by friction and other reasons of the belt conveyor, and cut off the power supply of the belt conveyor in the case of smoke and fire, so as to achieve smoke protection.

5. The belt conveyor is connected to the belt conveyor with an intelligent temperature sensor, and the temperature can be set through the man-machine interface; When the switch type temperature sensor is connected, the roller and bearing of the belt conveyor or the ambient temperature are monitored, and the temperature setting value is divided into three gears, and when the monitoring point temperature is higher than the setting value, the monitoring device can automatically cut off the power supply of the belt conveyor ali11, and realize over-temperature protection.

Transport. The belt is a high consumable part, very susceptible to the wear and tear of the material, the belt bearing frame cuts, the formation of damage, and the entire transportation system, the cost of the belt accounts for more than half of the overall, therefore, how to repair the belt damage of the belt conveyor, how to extend the service life of the belt, is the problem that the conveyor use enterprises can not avoid.

The belt damage of the belt conveyor is roughly divided into local rubber layer shedding, local structural damage, large-scale rubber damage or structural damage, puncture of foreign bodies in slow rent, horizontal deep scratches and fractures, longitudinal long-distance tears and scratches, etc. Enterprises need to consider the cost of repair materials, time-consuming, repair effect and other aspects when repairing belts. For different conveyor belt breakage, the repair plan needs to take into account all factors.

There are two main ways to repair belt damage: hot vulcanization bonding repair and cold vulcanization bonding repair. The repair effect of hot vulcanization is better than that of cold vulcanization bonding, and the integrity of the belt is better, and the strength is higher than that of cold vulcanization. Cold vulcanization repair, on the other hand, is easier to handle, the material is simple, the bonding speed is fast, and the repair can be completed quickly and returned to use.

Conveyor belt longitudinal tear, scratch repair operation method.

Step 1: Sand the damaged surface.

Label the contour of the wound so that the mark is larger than the broken area, and then use an angle grinder.

L1202 is equipped with a 125mmK23 tungsten steel grinding disc to polish the wound site until the surface of the injured part presents a certain arc and there is no protrusion.

Step 2: Clean the damaged surface Clean the grinding surface with a cleaning brush, use a cleaning agent to deeply clean the grinding surface, and wait for it to dry.

Step 3: Apply the adhesive.

The damaged surface is coated with the first cold vulcanized adhesive SK313 and allowed to dry completely. The damaged surface is coated with SK313 cold vulcanization bonding for the second time, and the semi-vulcanized layer of the repair strip is also coated with cold vulcanization adhesive SK313 at the same time.

Step 4: Attach the patch strip.

The adhesive surface of the repair strip is laminated along the damaged surface, and the air is not disturbed as much as possible during the lamination process. After lamination, the compaction roller is used to roll from the inside and outside to exhaust and compact the air from the repaired surface.

If the conveyor belt conveyor wants to avoid wear, it is necessary to adjust the balance of the rollers, only when the rollers reach a comprehensive balance and the conveyor runs smoothly and early, can the elevator reduce wear and improve the operation efficiency.

If you want to prevent the wear and tear of the belt of the conveyor belt, you can design the groove of the tooth wheel in a trapezoidal shape, which is wide on the outside and small on the inside, so that the wear will be reduced.

1.Risk of accumulation and blockage: When transporting materials, the conveyor belt conveyor may accumulate or block due to factors such as the viscosity of the material, the humidity and other factors, resulting in the shutdown of the belt conveyor or the leakage of the material.

2.Risk of material loss: During the transportation of the conveyor belt conveyor, the material may fall off or scatter from the conveyor belt, resulting in material loss and environmental pollution.

3.Belt wear and fracture risk: During the long-term operation of the conveyor belt conveyor, the belt may break due to wear or aging, resulting in conveying stoppage and material leakage.

4.Electrical failure and fire risk: The conveyor belt conveyor needs to be driven by electrical equipment, and if the electrical equipment fails or the circuit is short-circuited, it may lead to fire and safety accidents.

5.Risk of mechanical failure: The various components of the conveyor belt conveyor need to operate for a long time, which can lead to mechanical failure and downtime if not maintained and serviced in a timely manner.

6.Environmental pollution risk: During the transportation process, the conveyor belt conveyor may cause environmental pollution due to the scattering and leakage of materials.

<> belt conveyor, also known as belt conveyor, works according to the principle of friction and is mainly used for continuous conveying of materials. In the production process of various industries, the belt conveyor plays a transitional role in the past and the future, and is also an important auxiliary equipment in the production line. Therefore, how to choose the right belt conveyor is also crucial.

First of all, it is necessary to clarify the industry targeted by the belt conveyor, the material of the conveyor belt, the technical parameters of the bandwidth and other factors. For example, the rubber belt is suitable for the working environment temperature between -15 and 40 °C, and the material temperature does not exceed 50 °C; Plastic tape has the advantages of oil resistance, acid, alkali and so on, but it has poor adaptability to the climate and is easy to slip and age. Belt conveyor can be widely used in modern mining, metallurgy, chemical and other industrial enterprises, with large conveying capacity, simple structure and very convenient use.

Secondly, it is necessary to correctly match the belt speed of the belt conveyor and select the spike. For longer horizontal conveyors, higher belt speeds should be selected; The larger the inclination angle of the conveyor and the shorter the conveying distance, the lower the belt speed. For example, when the conveying volume is large and the conveyor belt is wide, a higher belt speed should be selected; Materials that are easy to roll, have large particle size, strong abrasiveness, or are easy to dust and have high requirements for environmental sanitation conditions should be selected with a lower belt speed; When using the unloading vehicle, the belt speed should not be exceeded, when conveying fine crushed materials or small pieces of materials, the allowable belt speed is; When it is used for feeding or conveying materials with large dust amounts, the belt speed is desirable, and it can also be determined according to the characteristics of the material and the process requirements;

The belt conveyor produced by Shanghai Xiazhou Heavy Industry can convey all kinds of materials, and has the advantages of economic application, large volume, good continuity, stable work, etc., which can be used according to the customer's conveying process requirements. It can also transmit materials over long distances in rugged and complex environments to achieve automated and integrated production operations; At present, it has been widely used in the fields of mine Peibu Mountain, coal, electric power, etc., and has become the most ideal equipment for long-distance, large-volume and continuous transportation.