Our company is a professional manufacturer for producing toothed roll unloader for pelletizing shaft furnace, the core component of this product, toothed roll, has the advantages of long service life, good quality and high cost performance.
Specification of unloader: 3-10m
Unloader transmission form: linkage, single-acting type, static-acting combined type
Third, the unloader tooth roller characteristics:
Toothed roller is detachable, its structure is divided into roller shaft and tooth sleeve, roller shaft is forging, tooth sleeve for my company's research and development of heat-resistant, abrasion-resistant, corrosion-resistant alloy steel, wells using a unique casting process, machining process, heat treatment process, the service life of the original
The service life has been increased by more than 2.5 times.
The structure of the rollers is reasonable, solving the defects of cracking, leakage and broken rollers caused by casting. After one cycle of use, the rollers can be used by repairing and replacing the tooth sleeve, which can save 20-30% of the cost. At the same time, to avoid the economic losses caused by frequent stopping the furnace for maintenance and replacement of tooth rollers.
Advantages and disadvantages of split type and whole type
Split type tooth roll intermediate shaft adopts 45# steel forging, the whole type tooth roll shaft two axle head adopts 42CrMo casting, the weight of the forging shaft than the casting shaft overweight about 2 times, the casting shaft intermediate hole machining process adopts the deep hole boring machine processing, machining length of more than 4 meters long, the whole type of tooth roll shaft does not need to wrap the holes, the split type tooth roll shaft and the tooth sleeve with the hexagonal fit, on the intermediate shaft item than the casting cost increase of 20,000 yuan, and the casting shaft compared to high strength, no water leakage, long service life, etc. Advantages. Compared with the casting shaft has high strength, no water leakage, long service time and other advantages. But the most obvious advantage of the general parts of the shaft is: in the return to repair can be used again to save costs.
Split tooth sleeve adopts one-time molding technology, the tooth surface part does not need to be processed. Shaft and tooth sleeve hexagonal set into the type, tooth sleeve ends and hexagonal holes need to be processed, in order to ensure that the tooth sleeve and the intermediate shaft of the close fit, tooth sleeve hexagonal holes using wire cutting processing, the whole type does not have a tooth sleeve, so the split type on the hexagonal shaft and hexagonal tooth sleeve processing costs increase a lot.
Integral tooth roller with 42CrMo material casting as a whole, split tooth sleeve using my company's own development of heat-resistant wear-resistant steel alloy casting, the material at high temperatures, high strength, wear resistance is good, do not deform, do not crack, do not fall off the block. The price difference between the two materials is more than 4-5 times, but the use of alloy tooth set than the overall service life of the rollers is relatively increased by 2-4 times. This reduces the downtime for maintenance, reduces the labor intensity of employees, and greatly improves the operation rate.