CN216080753U

CN216080753U - Novel rotary dryer with scattering mechanism

Info

Publication number: CN216080753U
Application number: CN202121846566.8U
Authority: CN
Inventors: 刘峰; 吴静; 葛庆刚; 尹凤交; 杜滨; 金澎; 朱秀伟
Original assignee: Shandong Tianli Energy Co ltd
Current assignee: Shandong Tianli Energy Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-03-18
Anticipated expiration: 2031-08-09

Abstract

The utility model provides a novel rotary dryer with a scattering mechanism, which comprises a feeding cover, a rotatable barrel, a discharging cover, a riding wheel device and a transmission device, wherein the scattering device for scattering materials is arranged on the barrel wall, a protective pipeline is arranged in the discharging cover, one end of the protective pipeline extends to the outer side of the discharging cover, a copper ring surrounding the protective pipeline is arranged on the end part, and an electric brush is arranged in a manner of being matched with the copper ring. The utility model has the following beneficial effects: the large-sized high-humidity high-viscosity sludge and dreg materials can be quickly scattered, the contact area of hot flue gas and the materials is increased, the materials are fully contacted with hot air, the heat efficiency is improved, and the materials are effectively prevented from being adhered to walls and being agglomerated; the scattering device is small in size, short in length and flexible in arrangement, can not only play a role in crushing materials and preventing from being stuck to walls, but also can solve the problems of high requirements on machining and mounting precision, high manufacturing cost, high power consumption and the like of the existing long shaft scattering structure.

Description

Novel rotary dryer with scattering mechanism

Technical Field

The utility model belongs to the field of drying devices, and particularly relates to scattering rotary drying equipment.

Background

The rotary dryer is a rotary drying device which takes hot flue gas as a heat source and conducts heat by direct convection, and is suitable for drying dregs and sludge materials in the industries of metallurgy, environmental protection, chemical engineering, building materials and the like. Such as: municipal sludge, chemical sludge, steelmaking sludge, various vinasse, fermentation sludge, pharmaceutical factory sludge and papermaking sludge. The conventional rotary dryer is simple in structural form, materials with high moisture content and poor dispersibility enter the rotary cylinder body, the materials are mainly rolled and beaten to be crushed and dispersed by means of rotation of the cylinder body, small particles are difficult to form, the specific surface area of wet bulk materials is small, the contact area of the wet bulk materials with hot smoke is small, the moisture migration speed inside the bulk materials is low, and the heat and mass transfer efficiency in the drying process is low. Meanwhile, because the surface drying speed of the sticky massive materials is low, the sticky massive materials are very easy to adhere to the surface of the cylinder, so that the inner wall of the cylinder is scarred, the materials are stacked, the operation condition in the dryer is further worsened, and the application of the rotary equipment in the field of drying high-humidity high-viscosity materials is restricted.

The conventional rotary dryer has ideal drying effect on loose materials (such as quartz sand and the like), but has the problems of low thermal efficiency, serious heat waste, unstable operation working condition and the like when the materials with high moisture and large viscosity (such as municipal sludge, medicine residues and the like) are dried.

ZL2019220735668 has disclosed a break up rotary dryer, the structure is shown in figure 1, figure 2 schematically, the structure of breaking up that adopts is for running through the axle of breaking up of one or many high-speed rotations of barrel, breaks up epaxial the fin that breaks up that has a plurality of equipartitions, breaks up the axle and supports through the bearing at both ends, then carries out high-speed rotation through the drive of motor, lifts the material that falls down with the shoveling plate, increases the contact specific surface area of hot-blast and material, improves drying strength. The applicable material range comprises high-humidity high-viscosity sludge materials, such as municipal sludge, papermaking sludge, various medical and chemical sludge and the like. However, the scattering mechanism has the problems of high cost, large vibration and the like, and the reason of high cost is that the scattering shaft penetrates through the whole cylinder body, is too long, and has large requirements on the diameter and the wall thickness of the scattering shaft to meet the rigidity requirement of the scattering mechanism, so that the manufacturing cost is high; and because the length is longer, the adjustment precision requirement on the static balance and the dynamic balance of the supporting parts at the two ends is very high, and the machining or mounting precision is slightly poor, the scattered shaft can generate larger vibration, so that the equipment is unstable in operation, and the service life of the equipment is influenced.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a novel rotary dryer with a scattering mechanism, which is characterized in that a scattering device arranged on a rotary shell is used for quickly scattering massive high-humidity high-viscosity sludge and dregs, so that the contact area between hot smoke and materials is increased, the materials are fully contacted with hot air, the heat efficiency is improved, and the materials are effectively prevented from being adhered to walls and being agglomerated. The scattering device provided by the utility model has the advantages of small volume, short length and flexible arrangement, can play a role in crushing materials and preventing wall adhesion, and can solve the problems of high requirements on processing and mounting precision, high manufacturing cost, high power consumption and the like of the conventional long shaft scattering structure.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a novel rotary dryer with a scattering mechanism comprises a feeding cover 1, a rotatable barrel 2, a discharging cover 13, riding wheel devices 3-1 and a transmission device 9-1, wherein the outer barrel wall of the barrel 2 is provided with a front rolling ring 3 and a rear rolling ring 10, the barrel 2 is supported on the two sets of riding wheel devices 3-1 by the front rolling ring 3 and the rear rolling ring 10, the outer barrel wall of the barrel 2 is also provided with a gear ring 9, the transmission device 9-1 is in transmission fit with the gear ring 9 and drives the barrel 2 to rotate, and the novel rotary dryer is characterized in that the scattering device 4 for scattering materials is arranged on the barrel wall of the barrel 2, a protective pipeline 11 concentric with the rotating axis of the barrel 2 is arranged in the discharging cover 13, one end of the protective pipeline 11 extends to the outer side of the discharging cover 13, the end is provided with a copper ring 11-1 surrounding the protective pipeline, and an electric brush 12 matched with the copper ring 11-1 is arranged, the other end of the protection pipeline 11 is connected with the cable protection pipeline 8-1, the cable protection pipeline 8-1 extends to the position close to the scattering device 4, the cable 8 is arranged inside the protection pipeline 11 and inside the cable protection pipeline 8-1, and the cable 8 is electrically connected with the copper ring 11-1 and the scattering device 4.

Furthermore, according to the novel rotary dryer with the scattering mechanism, the other end of the protection pipeline 11 extends into the cylinder 2 and is communicated with the cable protection pipeline 8-1, the cable protection pipeline 8-1 is connected and penetrates through the cylinder wall of the cylinder 2, and the end part of the cable protection pipeline is communicated with the outside of the cylinder.

Further, in the novel rotary dryer with the scattering mechanism, the electric brush 12 is tightly pressed against the copper ring 11-1 through the spring base 12-1 arranged on the frame.

Furthermore, as above, in the novel rotary dryer with the scattering mechanism, the scattering devices 4 are arranged on the wall of the cylinder 2 along the circumferential direction and the radial direction, and each scattering device 4 is provided with a cable protection pipeline 8-1 communicated with the protection pipeline 11.

Further, as above, the novel rotary dryer with the scattering mechanism breaks up the device 4 including the motor 5, the speed reducer 6 and the teeth 7, the teeth 7 are arranged inside the cylinder 2, and the motor 5 and the speed reducer 6 are arranged outside the cylinder 2.

Furthermore, the novel rotary dryer with the scattering mechanism further comprises a shoveling plate 14, and the shoveling plate 14 is arranged on the inner side of the cylinder wall of the cylinder 2 along the circumferential direction of the scattering teeth 7.

Furthermore, as above, the novel rotary dryer with the scattering mechanism, the scattering teeth 7 include a main shaft extending in the direction of the rotation axis of the cylinder 2, and a plurality of scattering blades are arranged on the main shaft.

Furthermore, according to the novel rotary dryer with the scattering mechanism, the scattering blades are bent and tilted spiral blades.

Further, according to the novel rotary dryer with the scattering mechanism, the position, close to the cylinder wall, of the shoveling plate 14 is provided with a material baffle plate 14-1 for preventing large materials from impacting the scattering device 4.

The utility model has the beneficial effects that:

according to the dryer, the plurality of scattering devices are arranged on the wall surface of the cylinder body and are reasonably distributed, the scattering shaft of each scattering device extends into the inner side of the cylinder body, large-block high-humidity high-viscosity sludge and dreg materials are scattered and crushed through high-speed rotation to be in a small block shape, and the contact surface of hot smoke and the materials is enlarged, so that the heat exchange efficiency is improved; a special shoveling plate is arranged near the scattering device on the inner side wall surface of the cylinder body, so that materials can be collected near the scattering device, and the scattering range and time of the materials are enlarged; the special electric brush is arranged at one end of the central protection pipeline extending out of the discharging cover, the electric brush is arranged on the outer side of the central protection pipeline and is electrified, the cable is arranged in the central protection pipeline, and electricity is transmitted to each special scattering device through the cable, so that the transmission between a fixed and static power supply and a scattering device motor rotating along with the cylinder is realized, and the power supply is transmitted to the motor of the scattering device.

Drawings

FIG. 1 is a schematic view of a prior art break-up rotary dryer;

FIG. 2 is a cross-sectional view of a break-up device of the prior art break-up rotary dryer of FIG. 1;

FIG. 3 is a schematic structural view of the novel rotary dryer with a scattering mechanism according to the present invention;

FIG. 4 is a cross-sectional view of the barrel of FIG. 3;

FIG. 5 is a top view of the inner portion of the barrel of the breakup device of FIG. 3.

The feeding device comprises a feeding cover 1, a cylinder 2, a front rolling ring 3, a riding wheel device 3-1, a scattering device 4, a scattering motor 5, a scattering speed reducer 6, scattering teeth 7, a cable 8, a cable protection pipeline 8-1, a gear ring 9, a transmission device 9-1, a rear rolling ring 10, a protection pipeline 11, a copper ring 11-1, an electric brush 12, a spring base 12-1, a discharging cover 13, a shoveling plate 14 and a striker plate 14-1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 3, 4 and 5, the novel rotary dryer with a scattering mechanism provided by the utility model comprises a feeding cover 1, a rotatable cylinder 2, a discharging cover 13, idler wheel devices 3-1 and a transmission device 9-1, wherein a front rolling ring 3 and a rear rolling ring 10 are arranged on the outer cylinder wall of the cylinder 2, the cylinder 2 is supported on the two sets of idler wheel devices 3-1 by the front rolling ring 3 and the rear rolling ring 10, a gear ring 9 is further arranged on the outer cylinder wall of the cylinder 2, and the transmission device 9-1 is in transmission fit with the gear ring 9 and drives the cylinder 2 to rotate.

The barrel wall shell of the barrel body 2 is provided with a plurality of scattering devices 4, the scattering devices 4 are connected to the shell of the barrel body 2 through a supporting device, each scattering device 4 comprises a scattering motor 5, a scattering speed reducer 6 and a scattering tooth 7, the scattering tooth 7 is arranged inside the shell of the barrel body 2, the scattering motor 5 and the scattering speed reducer 6 are arranged outside the shell of the barrel body 2, the scattering tooth 7 is provided with a main shaft, the fixed end of the main shaft is connected to the scattering speed reducer 6 in a transmission mode, the free end of the main shaft extends to the rotating axis of the barrel body 2, a plurality of scattering blades are arranged on the main shaft, and the preferred scattering blades are bent and tilted spiral blades. The breaking teeth 7 are driven by the breaking motor 5 and the breaking speed reducer 6 to rotate rapidly. The supporting device comprises a connecting piece for connecting and fixing the scattering device 4 on the shell of the barrel body 2, and a sealing piece and a heat insulation piece for sealing and insulating the inside of the shell of the barrel body 2 from the outside of the shell.

A straight protection pipeline 11 is arranged in the discharge cover 13, the axis of the protection pipeline 11 is concentric with the rotation axis of the cylinder 2, one end of the protection pipeline 11 extends to the outer side of the discharge cover 13, the other end of the protection pipeline extends to the central position in the cavity of the cylinder 2 and is communicated with a cable protection pipeline 8-1 in the cavity of the cylinder 2, the end part of the cable protection pipeline 8-1 is connected to the shell of the cylinder 2 and is communicated with the outside, and the cable 8 penetrates through the shell of the cylinder 2 and is connected with the scattering motor 5; the protective pipe 11 extends to one end of the outer side of the discharging cover 13, a copper ring 11-1 which surrounds the central protective pipe 11 in a circle is arranged on the end, and the number of the copper rings 11-1 can be determined according to the number of power supply phases of the scattering motor 5. And an electric brush 12 is arranged to be matched with the copper ring 11-1, the electric brush 12 is connected with an external power supply, and the electric brush 12 is in close contact with the rotating copper ring 11-1 to realize power transmission. Preferably, the brush 12 is in abutting contact with the copper ring 11-1 through a spring mount 12-1 mounted to the frame.

The cable 8 is arranged in the inner cavity of the protection pipeline 11 and the cable protection pipeline 8-1 and is sent to the outside of the barrel 2 through the cable protection pipeline 8-1, one end of the cable 8 is electrically connected with the copper ring 11-1, and the other end of the cable 8 is electrically connected with the scattering motor 5, so that the safe power supply of the scattering motor 5 is realized.

As described above, the motor 5 and the speed reducer 6 are provided on the outer wall of the casing of the cylinder 2, the scattering teeth 7 are driven by the motor 5 and the speed reducer 6, the scattering teeth 7 rotate at a high speed inside the cylinder 2 to scatter the nearby material, and the shoveling plate 14 is provided on the inner wall surface of the casing of the cylinder 2 along the circumferential direction of the scattering device 4 to scoop and collect the material, and send the material to the scattering device 4 for scattering. Preferably, the shoveling plate 14 is provided with a material baffle 14-1 which can prevent large materials from impacting the motor 5 and the speed reducer 6 of the scattering device 4.

The drying process of the drying material in the rotary dryer with the scattering mechanism is as follows: external hot flue gas enters the cylinder body 2 from a channel at the upper part of the discharge cover 13 and is led out of the cylinder body 2 from a channel at the upper part of the feed cover 1; treat during the dry material enters into rotatory barrel 2 from feeding cover 1, because the feed end of rotary dryer is higher than the discharge end, along with the rotation of barrel 2, treat that the dry material moves to ejection of compact cover 13 one end from feeding cover 1 one end, treat that the dry material is picked up and is concentrated near scattering device 4 by flight board 14 of installing at barrel 2 shells inner wall, by scattering tooth 7 and break up the dry material through high-speed rotation, the material after breaking up fully contacts with hot cigarette wind, the area of contact of material with hot cigarette wind has been increaseed, reach drying effect, the material after the drying gets into ejection of compact cover 13, discharge from the bottom bin outlet.

According to the dryer, the plurality of scattering devices are arranged on the shell of the cylinder body and are reasonably distributed, the scattering shaft of each scattering device extends into the inner side of the cylinder body, large-block high-humidity high-viscosity sludge and dreg materials are scattered and crushed by high-speed rotation to be in a small block shape, and the contact surface of hot smoke and the materials is enlarged, so that the heat exchange efficiency is improved; a special shoveling plate is arranged near the scattering device on the inner side wall surface of the cylinder body, so that materials can be collected near the scattering device, and the scattering range and time of the materials are enlarged; the electric brush is arranged at one end of the central protection pipeline extending out of the discharging cover, the copper ring is arranged on the outer side of the protection pipeline and is electrified with the electric brush, the cable is arranged in the protection pipeline, and electricity is transmitted to each special scattering device through the cable, so that the power transmission between a fixed and static power supply and a scattering device motor rotating along with the cylinder is realized, and an external power supply is transmitted to the scattering device motor.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.

Claims

1. A novel rotary dryer with a scattering mechanism comprises a feeding cover (1), a rotatable barrel (2), a discharging cover (13), riding wheel devices (3-1) and a transmission device (9-1), wherein a front rolling ring (3) and a rear rolling ring (10) are arranged on the outer barrel wall of the barrel (2), the barrel (2) is supported on the two groups of riding wheel devices (3-1) through the front rolling ring (3) and the rear rolling ring (10), a gear ring (9) is further arranged on the outer barrel wall of the barrel (2), the transmission device (9-1) is in transmission fit with the gear ring (9) and drives the barrel (2) to rotate, the novel rotary dryer is characterized in that the scattering device (4) for scattering materials is arranged on the barrel wall of the barrel (2), a protection pipeline (11) concentric with the rotating axis of the barrel (2) is arranged in the discharging cover (13), and one end of the protection pipeline (11) extends to the outer side of the discharging cover (13), the end part is provided with a copper ring (11-1) surrounding the protection pipeline, an electric brush (12) is arranged on the end part and matched with the copper ring (11-1), the other end of the protection pipeline (11) is connected with a cable protection pipeline (8-1), the cable protection pipeline (8-1) extends to the position near the scattering device (4), and the cable (8) is arranged in the protection pipeline (11) and the cable protection pipeline (8-1) and is electrically connected with the copper ring (11-1) and the scattering device (4).

2. The novel rotary dryer with a scattering mechanism as claimed in claim 1, wherein the other end of the protection pipe (11) extends into the drum (2) and is connected with a cable protection pipeline (8-1), and the cable protection pipeline (8-1) is connected with and penetrates through the drum wall of the drum (2).

3. The novel rotary dryer with a scattering mechanism as claimed in claim 1, wherein the electric brush (12) is tightly pressed against the copper ring (11-1) through a spring base (12-1) mounted on the frame.

4. The novel rotary dryer with a scattering mechanism as claimed in claim 2, characterized in that the brush (12) is tightly supported with the copper ring (11-1) through a spring base (12-1) mounted on the frame.

5. The novel rotary dryer with a breaking-up mechanism according to any one of claims 1 to 4, characterized in that the breaking-up devices (4) are arranged on the wall of the cylinder (2) along the circumferential direction and the radial direction, and each breaking-up device (4) is provided with a cable protection pipeline (8-1) communicated with the protection pipeline (11).

6. The novel rotary dryer with the scattering mechanism as claimed in any one of claims 1 to 4, wherein the scattering device (4) comprises a scattering motor (5), a scattering speed reducer (6) and scattering teeth (7), the scattering teeth (7) are arranged inside the cylinder (2), and the scattering motor (5) and the scattering speed reducer (6) are arranged outside the cylinder (2).

7. The novel rotary dryer with the scattering mechanism as claimed in claim 6, further comprising a shovelling plate (14), wherein the shovelling plate (14) is arranged inside the wall of the cylinder (2) along the circumferential direction of the scattering teeth (7).

8. The novel rotary dryer with a scattering mechanism as claimed in claim 7, wherein the scattering teeth (7) comprise a main shaft extending in the direction of the rotation axis of the drum (2), and a plurality of scattering blades are arranged on the main shaft.

9. The novel rotary dryer with a breaker mechanism as claimed in claim 8, wherein the breaker blades are curved, tilted, spiral blades.

10. The novel rotary dryer with a scattering mechanism as claimed in claim 8, wherein a material baffle plate (14-1) for preventing large materials from impacting the scattering device (4) is arranged on the shoveling plate (14) near the cylinder wall.