CN208720776U - Drying roller sealing device - Google Patents

Abstract

The utility model relates to a kind of drying roller sealing devices, including drying roller, feed box, feed box is equipped with discharge port, feed box is equipped with first flange, first flange is covered in drying roller end, second flange is connected in first flange, first flange includes first flange cylinder, first flange plate, first flange hole is circumferentially on first flange plate, lateral edge first flange cylinder is circumferentially with ring baffle in first flange cylinder, second flange includes second flange cylinder, second flange plate, elastic sealed body is equipped between second flange cylinder end and the ring baffle, first flange is bolted with second flange, there is axially spaced-apart between first flange plate and second flange plate.Elastic sealed body elastic expansion under pressure and drying roller outer wall, which are realized, to be sealed, and sealing effect is good, and is installed simple.

Description

Drying roller sealing device

Technical field

The utility model relates to dryer fields, and in particular to a kind of drying roller sealing device.

Background technique

Roller drying machine and other dryers are structurally all similar, mainly include drying roller, transmission device, discharging Case, feeding device.Drying roller and horizontal direction are slightly at heeling condition, and material is added from higher one end, high-temperature flue gas and object Material cocurrent enters roller tube, with the rotation of roller tube, material movement to lower one end.Material and high-temperature gas connect Touching, reaction, achievees the purpose that drying.Drying roller end is equipped with feed opening, and material is discharged from feed box.The neck of dryer application Domain has very much, for example, fertilizer industry, wherein the process flow of coating potassium sulfate slow-release potassium fertilizer is by potassium sulfate powder by making The processes such as grain, screening, Drying and cooling and coating complete the process.In process of production, particle is dried using drying roller, Drying roller end part seal is not tight, and heat flow is be easy to cause to be lost, and influences drying efficiency.

To solve the problems, such as heat losses, as shown in Figure 1, for a kind of sealing device used in the prior art, feed box is set There is the roller end with drying roller cooperation, the flange 3 of roller end is equipped with band 2 made of stainless steel plate, band 2 There is certain elasticity, band 2 is attached on the outer wall of drying roller 1.This sealing device haves the shortcomings that as follows, (1) sealing Not tight, stainless steel band and cylinder outer wall can not be connected closely, and there are gaps between adjacent stainless steel plate；(2) pacify Dress is inconvenient, as soon as week needs tens or even a band up to a hundred of drying roller and roller end, this needs to install many spiral shells Bolt is fixed；(3) reliability is low, and band once has 1 abrasion to fall off, and will result in serious gas leakage even material leakage.

Utility model content

The purpose of the utility model is to provide a kind of drying roller sealing devices, to improve sealing effect.

To achieve the above object, the utility model drying roller sealing device adopts the following technical scheme that drying roller is close Seal apparatus, including drying roller, feed box, drying roller, feed box are arranged along drying roller axis direction, and feed box is equipped with Material mouth, feed box are equipped with first flange, and first flange is covered in drying roller end, there is annular between first flange and drying roller Interval, drying roller are equipped with feed opening, and feed opening is located in feed box, and second flange, first flange are connected in first flange Including first flange cylinder, first flange plate, first flange hole is circumferentially on first flange plate, lateral edge first in first flange cylinder Flange cylinder is circumferentially with ring baffle, and second flange includes second flange cylinder, second flange plate, and second flange cylinder outer diameter is less than One flange cylinder internal diameter, second flange cylinder are inserted into first flange cylinder, are equipped between second flange cylinder end and the ring baffle Elastic sealed body, first flange are bolted with second flange, have between axial direction between first flange plate and second flange plate Every elastic sealed body elastic expansion under pressure and drying roller outer wall are realized and sealed.

Further, the elastic sealed body is graphite packing.

Further, the periphery in the middle part of the drying roller is equipped with transmission gear ring, and driving cog snare is located at drying roller On, transmission gear ring and driving gear drive, driving gear are driven by motor.

Further, the drying roller sealing device further includes support roller device, and support roller device has two groups, two groups of branch Support roller arrangement is located at the two sides of transmission gear ring, and support roller device is used to support drying roller, and support roller device includes pedestal And two support rollers, support roller are equipped with rib, are additionally provided with rolling ring on drying roller, rolling ring is set on drying roller and with drying Roller rotation, two support rollers of the same support roller device and rolling ring, which roll, to be cooperated.

Further, shovelling plate is equipped in the drying roller, take up the material direction shed and the material of shovelling plate are drying Direction of travel in dry drum on the contrary, shovelling plate it is axially extending along drying roller, the tilt angle of shovelling plate is 10~15 °.

The utility model has the beneficial effects that the drying roller sealing device of the utility model, is provided in first flange Second flange, first flange include first flange cylinder, first flange plate, and lateral edge first flange cylinder is circumferentially in first flange cylinder Ring baffle, second flange include second flange cylinder, second flange plate, and bullet is equipped between second flange cylinder end and ring baffle Property seal, elastic sealed body elastic expansion under pressure and drying roller outer wall, which are realized, to be sealed.The sealing device have with Lower feature, (1) sealed reliable come into full contact with drying roller outer wall after elastic sealed body expansion, can accomplish strictly to seal； (2) installation is simple, and elastic sealed body was a component, after elastic sealed body is packed into, it is only necessary to by flange one week several spiral shells Bolt fastening, pressure when elastic sealed body is tightened by bolt between two flanges realize expansion；(3) adjusting is easy to maintenance, Adjusting or detachable maintaining are either compressed, all only needs to twist several bolts.

Detailed description of the invention

Fig. 1 is a kind of sealing device (partial structure diagram) in the prior art；

Fig. 2 is the structural schematic diagram (partial sectional view) of the utility model drying roller sealing device；

Fig. 3 be drying roller with support roller device cooperate schematic diagram；

Fig. 4 is the transmission gear ring and driving gear drive schematic diagram of drying roller.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to In the range of the utility model protection.

The embodiment of the utility model drying roller sealing device: as shown in figs 2-4, drying roller sealing device, packet Drying roller 1, feed box are included, drying roller, feed box are arranged along drying roller axis direction.Feed box is equipped with discharge port, out Hopper is equipped with first flange 3, and 3 sets of first flange in drying roller end.Have between annular between first flange 3 and drying roller 1 Every.Drying roller 1 is equipped with feed opening, and feed opening is located in feed box, and when drying roller rotates, feed box is motionless. For the sealing effect for guaranteeing junction, specific design is as follows, as shown in Fig. 2, Fig. 2 is illustrated only since cylinder sizes are larger A part.It is connected with second flange 2 in first flange 3, first flange 3 includes first flange cylinder 31, first flange plate 32, and first First flange hole is circumferentially on flanged plate 32.Lateral edge first flange cylinder is circumferentially with ring baffle 33 in first flange cylinder 31. Second flange 2 includes second flange cylinder 21, second flange plate 22, and 21 outer diameter of second flange cylinder is less than 31 internal diameter of first flange cylinder, Second flange cylinder 2 is inserted into first flange cylinder 3.Elastic sealed body 4 is equipped between second flange cylinder end and ring baffle 33.The Two flanged plates 22 are equipped with multiple second flange holes, and second flange hole is correspondingly arranged with first flange hole, first flange and the second method Orchid is connected by bolt 5.There is axially spaced-apart between first flange plate and second flange plate, in order to squeeze by tightening bolt Elastic sealed body 4.The elastic expansion under pressure of elastic sealed body 4 contacts with drying roller outer wall and realizes sealing, not shadow Ring the rotation of drying roller.

Specifically, elastic sealed body 4 is graphite packing.It is come into full contact with after the expansion of graphite packing with drying roller outer wall, it can To accomplish strictly to seal.Moreover, graphite packing wearability is good, it is ensured that sealing is permanently effective.After being put into graphite packing, it is only necessary to Flange one week several bolt fastenings can be completed, installation is simple.Adjusting or detachable maintaining are either compressed, is all only needed Several bolts of tightening or dismantle just can be carried out, easily.

The periphery at 1 middle part of drying roller is equipped with transmission gear ring 8, and the transmission fixation of gear ring 8 is set on drying roller, is driven Gear ring 8 and driving gear 9 are driven, and driving gear 9 is driven by motor.Drying roller sealing device further includes support roller device, branch Support roller arrangement has two groups, and two groups of support roller devices are located at the two sides of transmission gear ring.Support roller device 7 is used to support drying rolling Cylinder 1, support roller device 7 include pedestal and two support rollers 71, and support roller is equipped with rib.Rolling ring 6 is additionally provided on drying roller 1, Rolling ring 6 is set on drying roller and rotates with drying roller, two support rollers 71 and rolling ring 6 of the same support roller device 7 Roll cooperation.Support roller is loose roll, and the rib in support roller can limit rolling ring.

Shovelling plate is equipped in drying roller, material is taken up the traveling of the direction shed and material in drying roller by shovelling plate It is contrary, shovelling plate it is axially extending along drying roller, the tilt angle of shovelling plate is 10~15 °.Shovelling plate has in drying roller It is circumferentially spaced several.Material to while the advance of discharge end in roller, shed backward by the material that shovelling plate raises, So the travel speed of material has just been slowed down, extended residence time of the material in roller is not lengthening drum length In the case of, improve drying effect.

Claims (5)

1. drying roller sealing device, it is characterised in that: including drying roller, feed box, drying roller, feed box are along drying rolling Cylinder axis direction setting, feed box are equipped with discharge port, and feed box is equipped with first flange, and first flange is covered in drying roller end, There is annular space between first flange and drying roller, drying roller is equipped with feed opening, and feed opening is located in feed box, the first method Second flange is connected on orchid, first flange includes first flange cylinder, first flange plate, is circumferentially with first on first flange plate Flange hole, lateral edge first flange cylinder is circumferentially with ring baffle in first flange cylinder, and second flange includes second flange cylinder, second Flanged plate, second flange cylinder outer diameter are less than first flange cylinder internal diameter, and second flange cylinder is inserted into first flange cylinder, second flange cylinder Elastic sealed body is equipped between end and the ring baffle, first flange is bolted with second flange, first flange There is axially spaced-apart between plate and second flange plate, elastic sealed body elastic expansion under pressure and drying roller outer wall are realized Sealing.

2. drying roller sealing device according to claim 1, it is characterised in that: the elastic sealed body is graphite plate Root.

3. drying roller sealing device according to claim 1, it is characterised in that: on the periphery in the middle part of the drying roller Equipped with transmission gear ring, driving cog snare is located on drying roller, and transmission gear ring and driving gear drive, driving gear are driven by motor It is dynamic.

4. drying roller sealing device according to claim 3, it is characterised in that: the drying roller sealing device also wraps Support roller device is included, support roller device there are two groups, and two groups of support roller devices are located at the two sides of transmission gear ring, support roller device It is used to support drying roller, support roller device includes pedestal and two support rollers, and support roller is equipped with rib, also sets on drying roller There is rolling ring, rolling ring is set on drying roller and rotates with drying roller, two support rollers and rolling of the same support roller device Circle rolls cooperation.

5. drying roller sealing device according to any one of claims 1 to 4, it is characterised in that: in the drying roller Equipped with shovelling plate, shovelling plate material is taken up to direction of travel in drying roller of the direction shed and material on the contrary, shovelling plate edge Drying roller is axially extending, and the tilt angle of shovelling plate is 10~15 °.