CN2814284Y

CN2814284Y - Three-drum dryer

Info

Publication number: CN2814284Y
Application number: CN 200520075244
Authority: CN
Inventors: 张保民
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-01
Filing date: 2005-09-01
Publication date: 2006-09-06
Anticipated expiration: 2015-09-01

Abstract

A novel three-drum dryer belongs to mechanical drying devices. A main body of the drying device is formed by three circular drum bodies of different diameters in a concentric sleeve joint way, and the inner surfaces of the three drums are respectively provided with spiral material flying plates of different angles and different distances. The outer surfaces of an inner drum and a middle drum are provided with radial material flying plates of different distances. When the drum bodies are rotated, the materials can enter the inner drum under the action of a spiral guide plate on the feeding end of the inner drum. Besides, the materials can simultaneously make longitudinal motion toward the discharge end when the materials are lifted under the action of the spiral material flying plate with an inclined angle. Meanwhile, the materials and the hot air current from a hot wind furnace can realize heat exchange. When the materials reach the other end of the inner drum, the materials fall into the middle drum. Under the action of a baffling guide plate of the middle drum, the materials can turn back to move toward the direction opposite to the direction of the inner drum. When the materials reach the other end of the middle drum, the materials can fall into an outer drum under the action of gravity. The materials can be also lifted to a high position under the action of the material flying plate on the end part of the outer drum, and then, the materials can be discharged out of the dryer. The novel three-drum dryer has the advantages of small size and high thermal efficiency.

Description

Three-cylinder drier

Technical field

The utility model relates to the drying unit in a kind of building material machinery.

Background technology

Be generally the monotubular rotary drying machine at the most popular drying plant of building equipment drying field at present, or bitubular dryer, belonging to high-energy equipment, the thermal efficiency is low, generally have only about 34%, and the drum surface radiation loss is big, and the heat exchange area in the tube is less, and wind-tunnel often appears in the cross section in the tube, thereby the unit volume evaporation intensity of cylindrical shell is low, cylindrical shell is oversize, and floor space and space are bigger, and construction investment increases.

Summary of the invention

The purpose of this utility model is the shortcoming that overcomes prior art, and a kind of three-cylinder drier is provided, and makes the floor space of cylindrical shell little, and noise is little, thermal efficiency height.

The utility model is achieved by the following technical solution: a kind of three-cylinder drier, its cylindrical shell by three from big to small the concentric suit of outer cylinder body, middle cylinder body, inner barrel of different-diameter form, it is characterized in that on the inwall of outer cylinder body, middle cylinder body, inner barrel, being respectively equipped with the helical form lifting blade of different spacing different angle; Outer surface at inner core and middle tube is equipped with radially lifting blade, is provided with the baffling guide plate that makes material change the direction of motion at the two ends of middle tube, an end material baffling place of urceolus, and the discharge end of urceolus is provided with lifting blade not with angle.Material is by the revolution of cylindrical shell, and the interior lifting blade of urceolus discharge end gives rise to eminence to material, and deadweight falls by material, draws off outside the machine by the awl tube guide plate that is located at middle tube end.

The utlity model has following advantage.

1, owing to adopted three core structures, inner core and middle tube are surrounded by urceolus and have formed a self-insulation construction, total area of dissipation of cylindrical shell significantly reduces, and the area of dissipation of urceolus is in low-temperature space, and heat exchange area has increased greatly, so the unit volume evaporation intensity of cylindrical shell improves greatly, simultaneously owing to adopted three core structures, improved the degree of scatter of material in tube greatly, more accorded with the drying mechanism of compound material, heat is fully used, waste gas and dry material temperature have been reduced, thereby improved the thermal efficiency, reduced energy consumption, improved output.

2, owing to adopted three core structures, the length of cylindrical shell is shortened greatly, thereby reduced floor space, reduced the construction investment expense.

3, because identical with traditional monotubular dryer technological process, think that the technological transformation of old factory monotubular rotary drying machine and the update of equipment created condition.

4, simplified transmission system, removed big pinion, reducing motor directly drives support roller and wheel band, thereby has reduced cost, has improved transmission efficiency, has reduced noise.

5, owing to adopted three core structures, reduced the drop of material in tube, thereby reduced the wearing and tearing of noise and cylindrical shell.

Description of drawings

Elaborate below in conjunction with drawings and Examples.

Fig. 1 is the utility model structure chart;

Fig. 2 is the A-A cutaway view of Fig. 1;

Among the figure: 1, combustion chamber heat wind furnace, 2, feed pipe, 3, sealing device, 4, guiding spiral plate, 5, inclination spiral formula lifting blade, 6, the inner core cylindrical shell, 7, middle tube cylindrical shell, 8, the urceolus cylindrical shell, 9, lifting blade, 10, wheel band, 11, dust cover, 12, support roller, 13, the body bearing, 14, reducing motor, 15, the baffling guide plate.

The specific embodiment

In Fig. 1, Fig. 2, novel three-cylinder dryer is the cylindrical shell that is formed three-cylinder drier by three different cylindric outer cylinder body 8, middle cylinder body 7 and inner barrel 6 concentric suits of diameter; Cylindrical shell lies in a horizontal plane on the support roller 12 and body bearing 13 at two ends with 10 by the wheel at two ends; In order to prevent that the wheel band is to the two ends axial float; Inboard at two support rollers radially is provided with flange, the feeding end of cylindrical shell is provided with combustion chamber heat wind furnace 1, delivery end is provided with dust cover 11, the feeding end of cylindrical shell and combustion chamber heat wind furnace junction, and cylindrical shell delivery end and dust cover junction be provided with sealing device 3, outer, in, be equipped with spiral lifting blade 5 with angle in interior three cylindrical shells; Inner core is equipped with the inclination angle lifting blade 9 consistent with the material direction of advance with the outer surface of middle tube, the baffling of cylindrical shell two ends material partly is provided with baffling guide plate 15, cylindrical shell is with 10 around its center rotation by decelerator 14, support roller 12, the wheel of transmission system, the wet stock of being dried is through feeding equipment, feed pipe 2 feeding inner cores 6, wet stock is pushed spiral lifting blade 5 with angle rapidly to by guiding spiral plate 4; Because this special-shaped lifting blade has inclination angle and spiral camber, constantly roll when causing material and shed and travel longitudinally to discharge end by lifting, thus meanwhile from the thermal current of combustion chamber heat wind furnace 1 enter successively interior,, carry out the purpose that heat exchange reaches the oven dry material with material in the urceolus.From novel three-cylinder formula drying machine structure as can be seen, the outer surface institute dispersed heat of inner core and middle tube has obtained utilizing once more, thereby the area of dissipation of cylindrical shell significantly reduces, and heat exchange area has increased nearly twice.When thermal current reached urceolus, temperature reduced simultaneously, so, the radiation loss of urceolus drum surface can reduce greatly, and material is in the cooling and drying stage at this moment, from above-mentioned reason as can be seen, because the increase of heat exchange area, the minimizing of area of dissipation, cause the unit volume evaporation intensity of dryer to improve greatly, thereby improved the heat energy utilization rate, reduced energy consumption, improve the thermal efficiency, also just improved the unit-hour output of dryer simultaneously.

Claims

1, a kind of three-cylinder drier, its cylindrical shell by three from big to small the concentric suit of outer cylinder body, middle cylinder body, inner barrel of different-diameter form, it is characterized in that on the inwall of outer cylinder body, middle cylinder body, inner barrel, being respectively equipped with the helical form lifting blade of different spacing different angle; Outer surface at inner core and middle tube is equipped with radially lifting blade, is provided with the baffling guide plate that makes material change the direction of motion at the two ends of middle tube, an end material baffling place of urceolus, and the discharge end of urceolus is provided with lifting blade not with angle.