CN220454121U - Roller dryer - Google Patents

Abstract

The utility model discloses a roller dryer which comprises a roller body and a supporting structure, wherein the roller body is arranged on the supporting structure, one end of the roller body is a feeding end, the other end of the roller body is a discharging end, a heating device is arranged in the roller body and used for providing a heat source for the roller body, the heating device comprises a circulating pipeline and an air inlet assembly, the air inlet assembly is connected with the circulating pipeline and used for supplying heating air, the air inlet assembly is arranged at the discharging end of the roller body, and the circulating pipeline is arranged on the inner side wall of the roller body. The gas for heating enters the circulating pipeline through the gas inlet component to supply heat to the cylinder body, so that the drying of materials is realized.

Description

Roller dryer

Technical Field

The utility model belongs to the technical field of dryers, and particularly relates to a roller dryer.

Background

The open hot air fluidization drying adopted by the conventional rotary drum dryer has the defects that part of hot air is discharged by tail gas and cannot be utilized on drying moisture, so that the heat efficiency of the dryer is low, the heat efficiency of the conventional rotary drum dryer is about 50%, and in addition, a large amount of hot air is required to be used as a drying medium for fluidization drying, and the hot air brings a part of dried materials out of a kiln body to pollute the environment.

For example, in a heat pump type low-temperature drum dryer for municipal sludge drying, with publication number CN218238143U, sludge is injected into a drum body through a feed inlet, a transmission device is started to drive the drum body to rotate so as to drive the sludge inside to roll, then wet air with dust inside the drum body is led out from an air outlet under the action of a fan, the wet air is transmitted into a cyclone dust collector to carry out dust removal treatment on the air, the treated air then enters a heat pump system to carry out thermalization treatment, the treated hot air enters the drum body through an air inlet to carry out drying treatment on the sludge, and then the dried sludge after the drying treatment is discharged from a discharge port through the pushing of a sludge scraper. The drying is carried out through hot air, dust removal, water removal and thermalization are carried out on the air before the drying, so that the energy consumption is further improved, and the air exhausted from the cylinder body is treated, so that the working flow and the energy consumption of the dryer are increased.

Aiming at the problems, a roller dryer is provided to solve the problems of low hot air fluidization drying efficiency and pollution caused by taking hot air as a drying medium to take out materials.

Disclosure of Invention

In order to solve the problems, the utility model provides a roller dryer which aims at solving the problems that the hot air fluidization drying efficiency is low and the hot air is taken out as a drying medium to bring about pollution.

The embodiment of the utility model is realized by the following technical scheme:

the utility model provides a cylinder drier, includes barrel and bearing structure, the barrel is installed on bearing structure, and barrel one end is the feed end, and the other end is the discharge end, is provided with heating device in the barrel for provide the heat source for the barrel, heating device includes circulation pipeline and air inlet unit, and air inlet unit is connected with circulation pipeline, is used for supplying with the gas that heats usefulness, air inlet unit installs the discharge end at the barrel, circulation pipeline installs on the inside wall of barrel.

In an embodiment of the utility model, the circulation pipeline comprises a plurality of collecting pipes, an air inlet pipe and a return pipe, wherein the collecting pipes comprise an air inlet collecting pipe, a return collecting pipe and a circulation collecting pipe, the collecting pipes are bent to be of a round structure which is communicated end to end, the collecting pipes are arranged on the inner side wall of the cylinder and are coaxially arranged with the cylinder, the air inlet collecting pipe and the return collecting pipe are arranged at the discharge end of the cylinder, the circulation collecting pipe is arranged at the feed end, the air inlet pipe and the return pipe are arranged on the inner side wall of the cylinder, one end of the air inlet pipe is communicated with the air inlet collecting pipe, the other end of the air inlet pipe is communicated with the return collecting pipe, one end of the return pipe is communicated with the air outlet collecting pipe, and the other end of the return pipe is communicated with the return collecting pipe.

In one embodiment of the utility model, the number of the air inlet pipes and the reflux pipes is the same, the air inlet pipes and the reflux pipes are arranged at intervals and uniformly arranged on the inner side wall of the cylinder along the circumference of the cylinder, and the circulation manifold is provided with a drain port for draining the liquid in the circulation manifold.

In an embodiment of the utility model, the inlet pipe and the return pipe are both offset in the same direction by 1-3 °.

In an embodiment of the utility model, the air inlet assembly comprises a central tube, a bidirectional rotary joint, a connecting tube and a diversion cavity, wherein the central tube is arranged on the end face of the discharge end of the cylinder body, the central tube penetrates through the end face of the discharge end of the cylinder body, the bidirectional rotary joint is connected with one end of the central tube, which is positioned outside the cylinder body, the diversion cavity is connected with one end of the central tube, which is positioned in the cylinder body, one end of the connecting tube is connected with the diversion cavity, and the other end of the connecting tube is connected with the air inlet collecting pipe and the backflow collecting pipe.

In an embodiment of the utility model, the supporting structure comprises a riding wheel, a driving motor, a driving gear and a bracket, wherein the riding wheel and the driving gear are rotationally connected with the bracket, the driving motor is arranged on a cushion block, the output end of the driving motor is connected with the driving gear, a rolling ring and a gear ring are arranged on the outer wall of the cylinder body, the rolling ring is placed on the riding wheel, the riding wheel supports the rolling ring to support the cylinder body, and the driving gear is meshed with the gear ring.

In an embodiment of the utility model, the central tube comprises an inner tube and an outer tube, the inner tube is positioned in the outer tube, and the bidirectional rotary joint is provided with two interfaces: the inner pipe is connected with the air inlet, and the outer pipe is connected with one air outlet.

In one embodiment of the present utility model, the split chamber is divided into two chambers: the air inlet chamber and the air outlet chamber are not communicated with each other, the inner tube is communicated with the air inlet chamber, the outer tube is communicated with the air outlet chamber, two groups of connecting pipes are arranged, one group of connecting pipes are used for connecting an air inlet collecting pipe and the air inlet chamber, the other group of connecting pipes are used for connecting a reflux collecting pipe and the air outlet chamber, and the connecting pipes are provided with a plurality of connecting pipes and are uniformly arranged along the circumference.

In an embodiment of the utility model, the discharge end of the cylinder is provided with a plurality of connectors, the connectors are uniformly arranged along the circumference, and the connectors penetrate through the cylinder.

In an embodiment of the utility model, a sealing cover is arranged on the outer wall of the cylinder body, the sealing cover covers the connecting port completely, so that the connecting port is communicated with the sealing cover, a gap is reserved between the sealing cover and the outer wall piece of the cylinder body, and a discharge hole and a dust collection exhaust port are arranged on the sealing cover.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

according to the embodiment of the utility model, the air inlet pipe and the return pipe are arranged in the cylinder body, high-temperature gas is used as a heat source, high-temperature steam or smoke generated by the boiler can be used as a heat source, air is not required to be directly heated, waste heat of other equipment can be utilized for drying, waste heat utilization is realized, and energy consumption is reduced; the heat of the high-temperature gas is radiated into the cylinder body, so that the drying effect is achieved, a large amount of hot air is not needed to be used as a drying carrier in the seed drying mode, the amount of hot air discharged by tail gas is small, and the heat efficiency of the dryer is high; because the hot air quantity is small, the dust of the dried materials carried out by the hot air is relatively reduced greatly, and the hidden trouble of pollution to the ambient air is greatly reduced; compared with the prior drying equipment, the energy consumption is greatly reduced, and the working environment is greatly improved; the circulation of high-temperature gas is realized through the circulation pipeline, and the inclination of the air inlet pipe and the return pipe is set so that materials can move from the feeding end to the discharging end, and the discharging of the materials is realized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic front view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the structure of the air intake assembly;

FIG. 4 is a schematic cross-sectional view of A-A in FIG. 3;

FIG. 5 is a schematic cross-sectional view of B-B in FIG. 4;

FIG. 6 is a schematic structural view of a seal cap

FIG. 7 is a schematic view of the layout of circulation pipes on the inside wall after the cylindrical shell is unfolded into a plane.

Icon: the device comprises a 1-barrel, a 2-feeding end, a 3-rolling ring, a 4-gear ring, a 5-riding wheel, a 6-cushion block, a 7-driving motor, an 8-driving gear, a 9-bracket, a 10-bidirectional rotary joint, an 11-central pipe, a 12-air inlet collecting pipe, a 13-reflux collecting pipe, a 14-circulation collecting pipe, a 15-air inlet pipe, a 16-reflux pipe, a 17-diversion cavity, a 18-discharge port, a 19-connecting port, a 20-dust collection exhaust port, a 21-sealing cover, a 22-cleaning port, a 23-supporting plate, a 24-feeding port, a 26-discharge end, a 27-connecting pipe, a 28-inner pipe, a 29-outer pipe, a 30-air inlet, a 31-air outlet, a 32-air inlet chamber and a 33-air outlet chamber.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the azimuth or positional relationship indicated by the terms "inner", "outer", etc. appears to be based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "configured," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-7, the present embodiment provides a drum dryer.

In this embodiment, the drum dryer comprises a drum 1 and a support structure. The cylinder 1 is mounted on a support structure. One end of the cylinder 1 is a feeding end 2, and the other end is a discharging end 26. The heating device is arranged in the cylinder 1 and used for providing a heat source for the cylinder 1, and comprises a circulating pipeline and an air inlet assembly, wherein the air inlet assembly is arranged at a discharge end 26 of the cylinder 1, and the circulating pipeline is arranged on the inner side wall of the cylinder 1. Steam or other high-temperature gas for heating enters the circulating pipeline from the air inlet component to provide heat for the cylinder 1, so that the drying of materials is realized.

In this embodiment, the supporting structure includes a riding wheel 5, a cushion block 6, a driving motor 7, a driving gear 8, and a bracket 9. The cushion block 6 is arranged on the floor, the support 9 is arranged on the cushion block 6, the riding wheel 5 and the driving gear 8 are rotationally connected with the support 9, the driving motor 7 is arranged on the cushion block 6, and the output end of the driving motor 7 is connected with the driving gear 8. Two rolling rings 3 and a gear ring 4 are arranged on the outer wall of the cylinder body 1, the rolling rings 3 are placed on a riding wheel 5, and the riding wheel 5 is used for supporting the rolling rings 3, so that the cylinder body 1 is supported. The driving gear 8 is meshed with the gear ring 4, and the rotation of the cylinder 1 is realized under the driving of the driving motor 7.

In this embodiment the circulation line comprises several headers, an inlet pipe 15 and a return pipe 16, which headers comprise an inlet header 12, a return header 13 and a circulation header 14. Wherein the manifold is bent into a round structure with a head-to-tail connection, the manifold is arranged on the inner side wall of the cylinder body 1 and is arranged coaxially with the cylinder body 1, the air inlet manifold 12 and the reflux manifold 13 are arranged at the discharge end 26 of the cylinder body 1, the circulating manifold 14 is arranged at the feed end 2, the air inlet pipe 15 and the reflux pipe 16 are arranged on the inner side wall of the cylinder body 1 along the length direction of the cylinder body 1, one end of the air inlet pipe 15 is communicated with the air inlet manifold 12, the other end is communicated with the reflux manifold 13, one end of the reflux pipe 16 is communicated with the air outlet manifold, and the other end is communicated with the reflux manifold 13. The inlet manifold 12 and the return manifold 13 are connected to an inlet assembly, and the heated gas enters the inlet manifold 12 from the inlet assembly and is distributed to the respective inlet pipes 15 via the inlet manifold 12, and flows along the inlet pipes 15 from the discharge end 26 of the cylinder 1 to the feed end 2 of the cylinder 1 and into the circulation manifold 14. After flowing into the circulation header 14, the gas enters the return pipe 16 and flows along the return pipe 16 from the feed end 2 of the bowl 1 to the discharge end 26 of the bowl 1, and the gas in the return pipe 16 is collected in the return header 13 and finally flows out through the gas inlet assembly. The return manifold 13 is provided with a purge port 22 for discharging liquid condensed from the gas, avoiding liquid accumulation in the circulation line.

As shown in the figure, in the present embodiment, the number of the intake pipe 15 and the return pipe 16 is the same, the intake pipe 15 and the return pipe 16 are arranged at intervals, and the intake pipe 15 and the return pipe 16 are uniformly arranged circumferentially, thereby ensuring uniformity of heating. In order to enable the material in the cylinder 1 to move from the feeding end 2 of the cylinder 1 to the discharging end 26 of the cylinder 1 while the cylinder 1 rotates, the air inlet pipe 15 and the return pipe 16 are offset by 1-3 degrees in the same direction. In the present embodiment, the intake pipe 15 and the return pipe 16 are offset by an angle of 2 °. By arranging the air inlet pipe 15 and the return pipe 16 obliquely, the material can automatically move from the feeding end 2 to the discharging end 26 under the rotation of the cylinder 1.

In this embodiment, the air intake assembly comprises a central tube 11, a bi-directional swivel 10, a connecting tube 27 and a shunt chamber 17. The central tube 11 includes an inner tube 28 and an outer tube 29, the inner tube 28 being located within the outer tube 29, and the inner tube 28 and the outer tube 29 not being in communication, the flow within the inner tube 28 and the flow within the outer tube 29 not being mutually affected. The bi-directional swivel 10 is provided with two interfaces: the bidirectional rotary joint 10 is internally provided with independent double pipeline channels, and the air inlet 30 and the air outlet 31 are respectively connected with one pipeline channel, so that the air inlet 30 and the air outlet 31 are not mutually influenced. The inner tube 28 of the central tube 11 is connected to the air inlet 30, and the outer tube 29 is connected to the air outlet 31. The split flow chamber 17 is divided into two chambers: the air inlet chamber 32 and the air outlet chamber 33 are not communicated with each other, the inner tube 28 is communicated with the air inlet chamber 32, and the outer tube 29 is communicated with the air outlet chamber 33. The connection pipes 27 are provided with two groups, one group of connection pipes 27 for communicating the intake manifold 12 with the intake chamber 32. Another set of connecting tubes 27 is used to communicate the return header 13 with the outlet chamber 33. Through the above design, the gas for heating enters the inner tube 28 through the gas inlet 30, flows into the gas inlet chamber 32, flows from the gas inlet chamber 32 to the gas inlet manifold 12 through the connecting tube 27, and flows from the gas outlet end 26 of the cylinder 1 to the gas inlet end 2 of the cylinder 1 through the gas inlet tube 15, and flows into the circulation manifold 14. After flowing into the circulation header 14, the gas enters the return pipe 16, flows along the return pipe 16 from the feed end 2 of the cylinder 1 to the discharge end 26 of the cylinder 1, and the gas in the return pipe 16 is collected in the return header 13, flows from the return pipe 16 to the gas outlet chamber 33, and flows from the gas outlet chamber 33 through the return pipe 16 and the gas outlet 31. The flow and circulation pipeline of the heating gas is formed by the components and the design. The heat source for drying the materials and the heating uniformity are ensured.

In this embodiment, a plurality of support plates 23 are disposed in the cylinder 1 at the discharge end 26, the support plates 23 form a cone structure, the connecting tube 27 and the split-flow chamber 17 are disposed in the cone structure formed by the support plates 23, so as to improve the stability of the structure, and the inclined support plates 23 can prevent materials from remaining between the backflow header 13 and the air inlet header 12.

In this embodiment, the connection pipes 27 are provided four in each group and are uniformly distributed along the circumference. The number of the air inlet pipe 15 and the return pipe 16 is 16, and the number of the connecting pipe 27, the air inlet pipe 15 and the return pipe 16 is required to be set according to actual production requirements. Meanwhile, in this embodiment, the air inlet pipe 15, the return pipe 16, the air inlet manifold 12, the return manifold 13 and the circulation manifold 14 are all half pipes, so that the installation is convenient, and meanwhile, the material is prevented from being clamped between the outer wall of the pipeline and the inner side wall of the cylinder 1, and the cleaning of the cylinder 1 is inconvenient.

In this embodiment, a plurality of connection ports 19 are provided at the discharge end 26 of the cylinder 1, and the connection ports 19 are located at one side of the intake manifold 12 near the feed end 2. The connection ports 19 penetrate the cylinder 1 and are uniformly arranged along the circumference. The dried material is discharged through connection port 19. A sealing cover 21 is mounted on the outer wall of the cylinder 1, the sealing cover 21 is of an annular structure and covers all the connecting ports 19, and a discharge port 18 and a dust collection exhaust port 20 are arranged on the sealing cover 21. The discharging hole 18 and the dust collection exhaust hole 20 are respectively provided with a connector capable of being opened and closed, so that the opening and closing of the discharging hole 18 and the dust collection exhaust hole 20 can be realized. When the joint of the discharge port 18 is opened, the dried material can enter the sealing cover 21 through the connecting port 19 and be discharged through the discharge port 18. When the pressure in the cylinder body 1 is large and the sealing cover 21 needs to be cleaned, the dust in the sealing cover 21 can be sucked away and the gas can be discharged through the dust suction and exhaust port 20. A cavity is reserved between the sealing cover 21 and the outer wall of the cylinder body 1, namely, all connecting ports 19 are communicated with the sealing cover 21. The sealing cap 21 comprises two semicircular structures, which can be bolted together into a circular whole.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a cylinder drier, includes barrel and bearing structure, the barrel is installed on bearing structure, and barrel one end is the feed end, and the other end is the discharge end, its characterized in that is provided with heating device in the barrel for provide the heat source for the barrel, heating device includes circulation pipeline and air inlet component, and air inlet component is connected with circulation pipeline for supply the gas that heats usefulness, air inlet component installs the discharge end at the barrel, circulation pipeline installs on the inside wall of barrel.

2. The drum dryer as claimed in claim 1, characterized in that,

the utility model discloses a circulation pipeline, including the circulation pipeline, circulation pipeline includes a plurality of catchments, intake pipe and back flow, the catchments includes intake catchments, backward flow catchments and circulation catchments, the catchments is crooked circular structure of head and the tail switch-on, and the catchments is installed on the inside wall of barrel, and with the coaxial heart setting of barrel, intake catchments and backward flow catchments are installed at the discharge end of barrel, circulation catchments are installed at the feed end, intake pipe and back flow are installed on the inside wall of barrel, the one end and the intake catchments intercommunication of intake pipe, the intake pipe other end and backward flow catchments intercommunication, back flow one end and give vent to anger the catchment intercommunication, the back flow other end and backward flow catchments intercommunication.

3. A drum dryer as claimed in claim 2, characterized in that,

the quantity of intake pipe and back flow is the same, and intake pipe and back flow interval set up, install on the inside wall of barrel along the circumference of barrel evenly, circulation manifold configuration has the exhaust port for the liquid in the discharge circulation manifold.

4. A drum dryer as claimed in claim 3, characterized in that,

the air inlet pipe and the return pipe are offset by 1-3 degrees along the same direction.

5. The drum dryer of claim 4, wherein the drum dryer further comprises a drum dryer,

the air inlet assembly comprises a central tube, a bidirectional rotary joint, a connecting tube and a shunt cavity, wherein the central tube is arranged on the end face of the discharge end of the cylinder body, the central tube penetrates through the end face of the discharge end of the cylinder body, the bidirectional rotary joint is connected with one end, located outside the cylinder body, of the central tube, the shunt cavity is connected with one end, located in the cylinder body, of the central tube, one end of the connecting tube is connected with the shunt cavity, and the other end of the connecting tube is connected with an air inlet collecting pipe and a reflux collecting pipe.

6. The drum dryer as claimed in claim 1, characterized in that,

the supporting structure comprises a riding wheel, a driving motor, a driving gear and a support, wherein the riding wheel and the driving gear are rotationally connected with the support, the driving motor is installed on a cushion block, the output end of the driving motor is connected with the driving gear, a rolling ring and a gear ring are arranged on the outer wall of the cylinder body, the rolling ring is placed on the riding wheel, the riding wheel supports the rolling ring, the support of the cylinder body is achieved, and the driving gear is meshed with the gear ring.

7. The drum dryer as claimed in claim 5, characterized in that,

the center tube comprises an inner tube and an outer tube, the inner tube is positioned in the outer tube, and the bidirectional rotary joint is provided with two interfaces: the inner pipe is connected with the air inlet, and the outer pipe is connected with one air outlet.

8. The drum dryer as claimed in claim 7, characterized in that,

the split flow cavity is divided into two chambers: the air inlet chamber and the air outlet chamber are not communicated with each other, the inner tube is communicated with the air inlet chamber, the outer tube is communicated with the air outlet chamber, two groups of connecting pipes are arranged, one group of connecting pipes are used for connecting an air inlet collecting pipe and the air inlet chamber, the other group of connecting pipes are used for connecting a reflux collecting pipe and the air outlet chamber, and the connecting pipes are provided with a plurality of connecting pipes and are uniformly arranged along the circumference.

9. The drum dryer as claimed in claim 1, characterized in that

The discharge end of the cylinder body is provided with a plurality of connectors, the connectors are uniformly arranged along the circumference, and the connectors penetrate through the cylinder body.

10. The drum dryer as claimed in claim 9, characterized in that

The sealing cover is arranged on the outer wall of the cylinder body, and covers the connecting ports completely, so that the connecting ports are communicated with the sealing cover, and the sealing cover is provided with a discharge port and a dust collection exhaust port.