I. Roller
The biggest role of the roller is to effectively support the conveyor belt and the materials carried on the belt. The outer diameter of the rollers is divided into several types according to the diameter: Φ89, Φ108, Φ133, Φ159, Φ194, Φ219 and so on. The roller shaft is equipped with labyrinth sealing bearings and labyrinth seals.
The roller sets can be basically divided into two categories: load bearing roller sets and return roller sets.
The load bearing roller group includes: groove roller group, buffer roller group, transition roller group, centering roller group;
The return bearing roller group includes: parallel return roller group, V-shaped return roller group, anti-V-shaped roller group, V-shaped centering roller group, cleaning roller group.
Two, roller
Transmission, reversing roller is an important part of the bulk material conveying system, the use of reasonably designed roller can reduce the entire conveying system failure, reduce maintenance costs, extend the service life of the conveying system.
The company was established in 1988 and has accumulated rich experience in the design and manufacture of rollers. In view of the fact that the domestic standard roller is prone to debonding, breaking, inconvenient installation and maintenance, and bad sealing performance of the bearing seat in actual operation, we combined with foreign advanced technology to reform the structure of the roller, which has a skeleton oil seal and labyrinth double-channel sealing, to ensure that the bearing seat has good sealing performance, and the roller receiver can be used for the whole conveyor system, and the roller can be used for the whole conveyor system. The drum catch plate can be two kinds of ordinary plate welding and disk structure.
Three, sweeping equipment
1, rotary sweeper placed under the conveyor return conveyor belt, driven by the motor cylindrical nylon brush, brush tip and belt surface slight contact, nylon brush rotation direction and return conveyor belt running in the opposite direction, so as to stick in the belt surface of the particulate material brushed down, and fall into the funnel.
2, weighted sweeper
3, empty section sweeper
Four, scraping dust removal equipment
1, ports, power plants, steel mills, mines and other open-air use of the belt conveyor, such as rainy days, and the conveyor is in a state of shutdown, the grooved tape surface will have a lot of water. In order to ensure that the belt conveyor can work normally, as well as conveying the material moisture content does not exceed the specified requirements, the use of GS type tape wiper can effectively solve this problem.
The working principle of GS type belt water scraper is that in a local area of open belt conveyor, through the work of water scraper, the groove-shaped tape surface of the regional section becomes inverted groove, so that most of the water on the tape surface can be eliminated, and then as long as the start of the conveyor, the V-type scraper of water scraper will be eliminated from the remaining water on the surface of the rubber, and the effect of water drainage is quite ideal.
2, ZC type trestle washer is water as the medium, suitable for power plants, wharves, mines, chemical industry and other bulk material transportation system trestle, transfer station, crushing and screening building and dusty places of the ground washing clean, is a civilized production of the necessary appliances. It has the advantages of simple structure, safe and convenient operation, no power supply, etc. It adopts mechanical manual contraction.
3, LFS-B type double-layer single-filter bag filter designed by the Ministry of Machinery Industry Eighth Design and Research Institute, on the basis of LFS-A type, made further improvements to make the structure of the product more reasonable, the filtration area of 35-200 per square meter, the handling air volume reaches 2016-36288 per cubic meter, the product is widely used in the power plant, metallurgy, foundry, sand blasting, sandblasting, dust removal and cleaning. , metallurgy, casting, sandblasting, chemical industry, cement, building materials, machining, refractory materials, carbon materials, grain, asbestos products, mining extraction and other non-fibrous dusty gas purification. The dust catcher adopts rectangular box and upper flower plate structure, which is composed of upper box, middle box and ash discharge hopper with spiral, and the ash cleaning system is composed of horizontal chain drive, double-layer linkage valve and double-layer air duct.
Fifth, electric actuator
1, BSDb type electric actuator is a large-scale heavy-duty electric actuator, can replace the hydraulic cylinder, cylinder, which can provide thrust up to 2000KG ~ 30,000KG. it is realized through the use of high-efficiency ball screw and high-strength reduction gears; in addition to the use of a unique thrust limiter connected to the heavy-duty disc springs. directly transferring the load; the limiter switch allows the electric actuator to stop at any position under the rated load when running either forward or reverse.
2, XDT-type electric actuator
3, DT-type electric actuator
Six, feeding equipment
Bulk material receiving and unloading process of uniform feeding and distribution of materials to different conveyor belts to the destination of the material is an important part of the process of material transfer. Typical ways are: the funnel in the material through the vibrating feeder, conveyed by the belt conveyor to the forked funnel, the forked funnel and then send the material to the different two belts. The material here has a few falls, after several conversions, any one of the details of the deviation will cause the logistics is not smooth, the lesser will be blocked, the heavier will cause downtime.
The company absorbed many domestic and foreign research, design, manufacturing experience in this important link, developed a characteristic "slow belt conveyor unloading, material separation system", which can make different materials according to the requirements of the purpose of conveying very convenient to be unloading and material separation. It has the advantages of simple structure, reasonable transfer, reliable use and convenient maintenance. This system mainly consists of the upper receiving hopper and short-range low-speed belt feeder and the lower receiving hopper and hopper output port.
Seven, unloading equipment
XLX type unloading trolley
eight, guide trough
According to the requirements of Guodian Company on the dust management of the coal transportation system, i.e., the permissible concentration of dust in the air around the monitoring and testing points of the coal transportation system is less than 10mg/m3. Coal dust generated by the coal combustion of the plant in the crushing and transferring process when the coal is falling down from high place through the coal fall pipe makes the air around the fall point contain dust of more than 10mg/m3, and the dust content in the air around the coal fall point is more than 10mg/m3. The dust content of the air around the drop point is often greater than 10mg/m3. The general method used is to extract dust in the upper opening of the guide chute, and adjust 1~2 rubber dust curtains at the exit of the guide chute to prevent the dusty airflow from escaping. Usually used dust extraction devices are: bag type dust collector (more units), electrical dust collector, spiral dust collector, impact hydraulic dust collector (also known as water bath dust collector). The use of air extraction dust removal device has two main functions: one is the guide trough space into a micro-vacuum, reducing the dust from the guide trough to escape; the second is the dust in the dust-containing gas separation, so that the dust content of the discharged air in line with the emission standards.
Among the above dust collectors, the worm-rotating dust collector has low dust removal efficiency. Impact hydraulic dust collector resistance loss is large, and need to discharge a large number of dusty sewage, bag-type dust collector to adapt to changes in media conditions of poor ability (the specific resistance coefficient of the bag RP is mainly determined by the characteristics of dust) and the usual maintenance workload, maintenance costs are high; the current market supply of the product pumping volume of more than 7,000m3 / h, and B = 1200 belt conveyor guide chute to maintain a micro-vacuum in the space, pumping volume needs 12,000m3 / h The amount of 12000m3/h or more, even if each guide trough arrangement of two bag filter, to always maintain the negative pressure of the guide trough also has a certain degree of difficulty, because with the increase in the accumulation of dust on the bag in addition to the dust collector's own resistance to increase the circulation, the air volume is reduced, and thus the current use of remittance bag type dust collector is not much single case. Electrical type dust collector resistance loss is small, handling dusty gas quantity is small, can maintain the negative pressure required by the guide trough, the medium working condition is stable dusty gas dust removal efficiency is high, but its investment cost is large, covers an area of large, to be equipped with the corresponding ash device, the system is relatively complex, usually adjust the maintenance workload is large, not many manufacturers use on the coal transmission system.
After the above comprehensive analysis and consideration, if each belt conveyor configuration of a set of dust removal equipment, and in terms of electric precipitator is each transfer station should be equipped with the corresponding dust removal equipment, not only the number of equipment, high investment costs, and usually the operation, management workload is also large, the maintenance of labor and high cost. Even with the use of the various dust collectors may not be able to achieve the desired results. The multifunctional guide chute is to use blocking, pressure relief, dust suppression and other measures to prevent coal dust from the belt machine head, side, interface, tail flying out, so as to ensure that the dust content of the air inside the transfer station to meet the requirements of environmental protection.