Break up the type revolving drum drier
(1) technical field
The utility model relates to the equipment that is used for the revolving drum drying, belongs to the drying machine technical field.
(2) background technology
Revolving drum drier is a big class of traditional drying equipment, is widely used in fields such as mine, metallurgy, chemical industry, building materials.The more revolving drum drier of present domestic employing is made up of revolving drum and tumbler thereof, the internal face of revolving drum is provided with elevate a turnable ladder formula or distribute type flight device, when revolving drum rotates, the flight device also rotates with revolving drum, and the material to be dried in the drying machine is lifted.Along with the further rotation of revolving drum, material to be dried breaks away from the flight device and is thrown down under the gravity effect of self, drops down onto the bottom of revolving drum.Afterwards, along with the rotation of revolving drum, be picked up once more, promote, throw down, in dropping process repeatedly, material to be dried contacts with the hot blast that enters drying machine, carries out the caloic exchange, reaches the purpose that dehydrates.The revolving drum drier of this structure is at the granular bulk material of xeraphium, and when requiring dried product and initial material difference is little on granularity, obvious drying effect.But at dry bulk, paste, material of sticky shape that particle is bigger, during as distillers grains and dregs, mud class material, there is following shortcoming in the drying machine of this kind structure: in the dry run, caking is arranged, the phenomenon of chopping the chop, cause product granularity, moisture inhomogeneous; Because material is bulk or paste, so and heat carrier to carry out the heat transfer coefficient of heat exchange low, the thermal efficiency of drying machine is low; Because phenomenons such as luming, scab causes dry operating mode to worsen, and makes material cross thermal denaturation, for organic materials the burnt phenomenon of sticking with paste, catching fire often appears also.
(3) summary of the invention
The utility model provides a kind of for bulk, paste and the bigger good type of the breaing up revolving drum drier of material of sticky shape drying effect of particle at the deficiencies in the prior art.
The technical solution adopted in the utility model is:
The type revolving drum drier of breaing up comprises revolving drum, revolving drum tumbler and is located at the interior flight device of revolving drum, also is provided with in the revolving drum and breaks up device.
Breaing up device is made up of rotating shaft and tumbler thereof, rotating shaft is arranged on the revolving drum drum shaft upwards and run through whole cylindrical shell, be provided with many groups on the rotating shaft at a certain distance and break up tooth, and each group to break up tooth uniform on the rotating shaft circumferencial direction, tumbler is installed in rotating shaft one end.
The axis runout revolving drum axis of rotating shaft.In the process of drying machine running, the device of breaing up of rotation produces stronger turbulent flow in drying machine at a high speed, and thermal medium is fully contacted with material to be dried like this, and the heat and mass transfer enhancement process improves the thermal efficiency of drying machine greatly;
The tumbler of breaing up device and revolving drum is all stepless adjustable in certain range of speeds.Can be at different viscosities, material of different nature is selected suitable rotating speed, obtains satisfactory dry products.
In dry run, when paste to be dried or lump material are risen to by flight in the process that the revolving drum top falls, touch with the toe joint of breaing up of rotating shaft, utilize the tooth of breaing up of rotation at a high speed constantly to impact material, it is broken into granule, its specific area is constantly increased, and contact with hot blast and to carry out drying, after be broken into tiny particle, meeting the requirements of moisture, discharge drying machine.
The utility model is broken up device by being provided with in revolving drum, in conjunction with the flight device on the revolving drum wall, when dry bulk, paste and oarse-grained material of sticky shape, good pulverization is arranged, and can drying go out qualified product; Energy heat and mass transfer enhancement process improves dry heat efficient simultaneously.
(4) description of drawings
Fig. 1 is that the utility model is broken up type revolving drum drier internal structure schematic diagram.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the right view of Fig. 1.
Fig. 4 is along A-A line cutaway view among Fig. 1.
Wherein: 1, break up the device electromagnetic adjustable speed motor, 2, small belt pulley, 3, belt, 4, big belt pulley, 5, rotating shaft, 6, break up tooth, 7, flight device, 8, revolving drum, 9, hinge wheel, 10, chain, 11, minor sprocket, 12, revolving drum electromagnetic adjustable speed motor, 13, charge door, 14, the hot blast import
(5) specific embodiment
Fig. 1 has provided the structural representation that the utility model is broken up the type revolving drum drier.Compare with existing revolving drum drier, the revolving drum tumbler of forming except that revolving drum 8, by electromagnetic adjustable speed motor 12, minor sprocket 11, hinge wheel 9 and chain 10 and being located at the flight device 7 in the revolving drum, the utility model also is provided with in revolving drum and breaks up device.This is broken up device and is made up of rotating shaft 5 and tumbler thereof, rotating shaft 5 is arranged on revolving drum 8 drum shaft upwards and run through whole cylindrical shell, be provided with many groups on it at a certain distance and break up tooth 6, and it is uniform in a circumferential direction that each group is broken up tooth, tumbler is installed in rotating shaft 5 one ends, is made up of electromagnetic adjustable speed motor 1, small belt pulley 2, belt 3 and big belt pulley 4.Axis runout revolving drum 8 axis of rotating shaft 5.This is broken up device and is driven by electromagnetic adjustable speed motor 1, after small belt pulley 2, big belt pulley 4 slow down, obtains suitable rotating speed, is driven by belt 3 and rotates.Revolving drum 8 is driven by electromagnetic adjustable speed motor 12, after minor sprocket 11, hinge wheel 9 slow down, obtains suitable rotating speed, is driven by chain 10 and rotates (referring to Fig. 3).Break up the rotating speed of device and revolving drum and all can in certain speed range, realize step-less adjustment, satisfy the dry requirement of different viscosities, heterogeneity material by adjusting electromagnetic adjustable speed motor 1 and 12.
As shown in Figure 2, rotating shaft 5 and hot blast import 14 are separately positioned on the both sides of the axis of rotation of revolving drum 8, a distance of departing from axis of rotation.In the process of drying machine running, the breaing up device and can make the hot blast in the drying machine produce stronger turbulent flow of rotation makes hot blast fully contact with material to be dried at a high speed, and the heat and mass transfer enhancement process improves the thermal efficiency of drying machine greatly.Charge door 13 is arranged on the top of rotating shaft 5, makes in the natural dropping process of material to be dried after adding drying machine, just can contact with breaing up device, plays the effect of effective fragmentation.
As shown in Figure 4, breaing up tooth 6 is that unit is arranged on the rotating shaft 5 at a certain distance with one group, each group is broken up tooth 6 and is evenly arranged with certain angle [alpha] on the circumferencial direction of rotating shaft 5, make material to be dried in drying machine, be lifted in the process under the throwing by flight device 7, contact evenly with breaing up tooth 6, play good crushing effect.The hot blast turbulent flow that produces in drying machine simultaneously is also more even, thereby can obtain comparatively ideal drying effect.