What are the classification of chemical agitator
Chemical mixers are divided into forced mixers, concrete mixers, vertical mixers, new mixers.
1, forced mixer
The machine includes planetary stirring mechanism, eddy current stirring mechanism, mixing drum, discharging mechanism, mixing frame and bottom frame, etc., the central position of the mixing drum is provided with eddy current mixer, two planetary mixers are symmetrically arranged on both sides of the eddy current mixer frame, two planetary mixers for relative rotation, eddy current mixer and mixing drum reverse rotation, the machine mixing force is large. Solve problems such as the solidarity warehouse.
The utility model relates to a forced mixer suitable for the production of lime sand brick mixing mixture, which comprises a planetary mixing mechanism, a vortex mixing mechanism, a mixing drum, a mixing frame, a discharging mechanism and a bottom frame, etc., characterized in that the mixing drum is located on the bearing seat of a large tooth ring on the bottom frame, and a vortex mixer is arranged in the center of the mixing drum. Symmetrical arrangement with two planetary mixers.
2, concrete mixer
The concrete mixer comprises a power mechanism connected with a transmission mechanism through a shaft and a drum driven by the transmission mechanism, a tooth ring arranged around the drum body is arranged on the drum body, and a gear meshing with the tooth ring is arranged on the drive shaft. The utility model has simple and reasonable structure, and can effectively overcome the slipping phenomenon between the support wheel and the mixer drum when the gear and the tooth ring are engaged. The transmission mechanism can further ensure the elimination of slippage between the support wheel and the mixer drum.
The mixer can also be divided into: star mixer, protective mixer, vertical mixer, concrete mixer, double shaft mixer, single shaft mixer, non-slip concrete mixer.
3, vertical mixer
The mixer comprises a motor, a stirring cylinder, a transmission shaft and a stirring blade, wherein a reverse stirring blade is also loosely set on the transmission shaft. The shaft sleeve of the reverse stirring blade is connected with the sprocket at the upper end of the intermediate shaft on one side of the transmission shaft through a chain, and the passive gear with the sprocket coaxial is engaged with the driving gear fixed at the lower end of the transmission shaft. The two stirring blades of the utility model rotate in the opposite direction, so that the raw materials can form convection between the two stirring blades during the stirring process, thus completely solving the problem of the traditional mixer stirring the raw materials without mixing.
4. New mixer
The new mixer is a replacement product, which is the irreplaceable product of the mixing equipment in the chemical and building materials industry, and realizes the advent of the correct "mixing and mixing", so as to eliminate the heavy responsibility of other mixing equipment. It fills the international gap with its extraordinary idea and elite technical content, reasonable design level. It is widely used in paint, paint, dye, leather, medicine, beverages, adhesives, food, washing products, cosmetics and all kinds of solid objects. There is inexhaustible wealth. The mixing effect of object dispersion, emulsification, homogenization, and color adjustment is more ideal and intuitive than that of traditional mixers, which is a revolution in the mixing industry.
Chemical agitator common fault analysis
Chemical mixers often encounter some faults during use, the most typical of which is abnormal sound. When such a failure occurs, the equipment emits a larger sound, which can be heard at more than ten meters, the inspection current is within the normal range, and a simple inspection is difficult to find the problem. The whole equipment of the chemical mixer can be divided into three parts, namely, the mechanical seal assembly, the gear box and the motor, for separate inspection and analysis.
1, mechanical seal assembly inspection
The most prone to failure of the chemical mixer is the mechanical seal part, which often fails to make the mechanical seal due to wear and tear, and the sealing cavity is filled with water. First of all, the mechanical seal assembly is decomposed, including two sets of mechanical seals, skeleton oil seal, output shaft, bearing, housing and end cover and other parts are cleaned and checked, and the relevant size of the mechanical mixer bearing seat and output shaft is checked, if no problem is found, it indicates that the mechanical seal part is intact, excluding the possibility of failure.
2. Analysis and inspection of gear box
Some stirrer equipment gearbox processing accuracy is high, good heat treatment, the gearbox is thoroughly cleaned, carefully check each gear, gear shaft, bearing. It is found that the tooth surface is smooth, no pitting, intersection phenomenon, gear meshing backlash is normal, no obvious wear of tooth profile; The radial and axial clearance of each bearing is normal, and there is no spot etching on the surface of the inner and outer rings and rollers, and the overall quality is good. The axial clearance of each shaft is reasonable, the hand disc output shaft, free movement, no jamming phenomenon, no abnormal sound. Then, the fault of the gearbox can be eliminated.
3, motor fault inspection, analysis and treatment
Chemical mixer motor failure performance: Before decomposes the motor, carry out empty operation to find out the problem. For example, the motor of the mechanical agitator makes an abnormal sound and has great vibration; The shaft sleeve of the motor shaft of the mechanical agitator makes a sizzling sound, and the shaft extension temperature of the motor reaches tens of degrees in less than 2 minutes of empty operation. The inner ring of the inner bearing of the mechanical agitator produces pear-skin pitting area due to pitting. The surface is rough, dull and dull, and pitting holes can be obviously seen. Skeleton oil seal inner ring is damaged; The bearing inner ring and shaft sleeve of the mechanical agitator have dark spots formed by "running ring" with the corresponding journal.
Due to the pitting of the inner ring of the bearing of the chemical mixer forming a pear-skin pitting area, the bearing roller passes through, there is an obvious stuck phenomenon and a sound occurs. This may be the root cause of the abnormal sound of the motor inside the chemical mixer, then the problem can be solved by replacing the bearing in the mixer.
4. Problems that need to be explained
1) The motor rotor shaft in the chemical mixer is the reference part of the pusher, the maintenance of the pusher, in addition to repairing the reference part, but also need to decompose the inspection of each part, replace the damaged part, so that the performance of the equipment has been restored.
2) The overhaul time of the diving equipment inside the chemical machinery mixer is generally 5-6 years;
3) The common treatment method for the small journal in the chemical mixer is to increase the part method, that is, the diameter of the section in the mixer is turned, a shaft sleeve is added, the inner hole is matched with the shaft by interference fit, and the outer surface meets the required size. Or replace the motor rotor shaft inside the mixer to completely solve the problem.