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How to install three drum dryer?
Three drum dryer is widely used in dry mixed mortar, yellow sand, slag, clay, coal gangue, mixture, fly ash, gypsum, iron powder and other raw materials drying, widely used in building materials, chemical industry, casting and other industries. So how to install the three drum dryer?
Before installation, check the parts, standard parts and accompanying documents according to the equipment packing list provided by the dryer manufacturer, and make sure there are no errors, missing parts, deformation and damage, and make records. The overall dimension and basic coordinate position of the dryer shall be required to be less than 20 mm for the vertical and horizontal axis error, less than 20 mm for the elevation error of different planes, and only negative but not positive error is allowed, the total length of inclination error shall be less than 20 mm, negative error is allowed for discharge and positive error is allowed, the non flatness of upper plane shall be less than 5 mm / m, and the total length shall be less than 10 mm.
Before installation, the coating protection layer, dust, oil stain, rust, etc. of the dryer packaging shall be removed, and the parts shall be inspected for damage or deformation during transportation. In order to avoid rework in the installation work, the parts and key parts are pre tested and pre assembled, so that after the formal installation, the installation progress and installation quality can be ensured.
Installation process includes basic installation procedure, installation process method and safety technical requirements, which should be well understood.
When installing the dryer, in order to prevent the uneven force on the base plate, the layout of the base plate should be reasonable. It should be noted that the base plate should be as close to the anchor bolt as possible and placed on the center of gravity of the load. The number of base plates in each group shall not exceed 5. The thicker base plates shall be placed up and down, and the thinner ones shall be placed in the middle. They shall be placed neatly and in good contact. If the adjustment can not completely coincide, the contact area shall not be less than 80%. The bottom base plate and foundation should have enough contact accuracy, so that the foundation contact can be dense, the placement can not appear the phenomenon of empty angle shaking, and the placement can be stable. Finally, it can ensure that the vertical slope of the base plate is the same as that of the foundation, and the horizontal direction can be in the horizontal position.
Use optical theodolite, laser collimator or poor precision wire drawing method to horizontally level and align the supporting roller base, and repeat the longitudinal inclination for several times until the coordinate position, horizontal and longitudinal inclination meet the requirements, and mark the three drum dryer base. The hoisting should ensure that the cylinder device can smoothly fall on the front and rear supporting wheels. If the cylinder is long and heavy, if the overall hoisting is difficult, the hoisting should be carried out in sections according to the actual situation. In order to ensure safety, the specific method and the required auxiliary support frame, tools and other safety measures should be formulated.
When the inlet and outlet device of the dryer is installed, the forward discharge box should be installed first, and then the rear discharge box. In order to ensure that the error of the peripheral clearance when the cylinder rotates is less than 10 mm, the inclined flange on the inlet and outlet box and the peripheral clearance at both ends of the cylinder should be kept uniform.
After the installation of the dryer, in order to ensure the normal operation of the equipment, it is necessary to carry out debugging. When debugging, remember to test the dryer according to the operation manual. If there is any abnormality, stop the machine in time for inspection.