Constant-temperature rotary dryer

Abstract

The utility model discloses a constant-temperature rotary dryer, which belongs to the technical direction of dryers and comprises a constant-temperature rotary dryer, three groups of concentric cylinders with different diameters, namely an outer cylinder, a middle cylinder and an inner cylinder, are embedded and combined in the constant-temperature rotary dryer, and a supporting seat is fixedly mounted at the bottom of the constant-temperature rotary dryer. Two sets of wheel belts are fixedly installed at the two ends of the outer cylinder correspondingly, two sets of speed reducing motors are fixedly installed on the supporting base, and two sets of riding wheels are fixedly installed on the two sets of speed reducing motors and located on one sides of the two sets of wheel belts correspondingly. According to the constant-temperature rotary dryer, materials and hot air flow from a hot air furnace are subjected to strong heat exchange, the drying efficiency can be effectively improved, the materials are dried more thoroughly, the two sets of auxiliary wheels are used, the constant-temperature rotary dryer can be subjected to auxiliary rotation when starting to rotate, and the two sets of speed reduction motors are prevented from being burnt out due to too large rotation torque.

Description

Technical Field

[0001] The utility model belongs to the technical direction of drying machines, and specifically relates to a constant temperature rotary drying machine. Background Art

[0002] Rotary dryer is an industrial equipment used in fertilizer, metallurgy, chemical industry and other industries. After transformation, rotary dryer (also known as rotary dryer) can greatly increase hourly output and reduce energy consumption. Rotary dryer has made substantial breakthroughs and innovations on the basis of the traditional single-drum rotary dryer structure. From the drying mechanism point of view, the exchange between materials and hot air flow is more sufficient, more scientific and reasonable, and various thermal indicators have reached the leading level. It is suitable for the drying of various raw materials such as clay, gypsum, coal, slag, coal gangue, mixture, dry mixed mortar, yellow sand, iron powder, etc. It is also suitable for the drying of raw materials in the production of phosphate fertilizer and compound fertilizer and various bulk materials in metallurgy, chemical industry and other industries.

[0003] The existing device occupies a large area during the drying process, which is easy to affect the production of other equipment. During the drying process, due to the large size of the cylinder, the motor is prone to burn out due to excessive torque, which has a certain impact on the factory's production cost. In addition, the drying effect is not good, and some materials are prone to not being dried thoroughly. Utility Model Content

[0004] The utility model aims to provide a constant temperature rotary drying machine for existing devices to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a constant temperature rotary dryer, comprising a constant temperature rotary dryer, wherein the interior of the constant temperature rotary dryer is embedded with three groups of concentric cylinders of different diameters, namely an outer cylinder, a middle cylinder and an inner cylinder, a support seat is fixedly installed at the bottom of the constant temperature rotary dryer, two groups of wheel belts are fixedly installed at both ends of the outer cylinder, two groups of reduction motors are fixedly installed on the support seat, respectively located on one side of the two groups of wheel belts, two groups of supporting wheels are fixedly installed on the two groups of reduction motors, and the positions of the two groups of supporting wheels correspond to the positions of the two groups of wheel belts and cooperate with the two groups of wheel belts.

[0006] The utility model further illustrates that an auxiliary wheel belt is fixedly installed at one end of the outer cylinder and is located on one side of the wheel belt.

[0007] The utility model further describes that two sets of auxiliary wheels are fixedly installed at one end of the support seat, namely a first auxiliary wheel and a second auxiliary wheel. The first auxiliary wheel is longitudinally installed on the support seat and corresponds to the belt surface of the auxiliary wheel belt. The second auxiliary wheel is transversely installed on the support seat and corresponds to both sides of the belt body of the auxiliary wheel belt.

[0008] The utility model further illustrates that the inner tube and the middle tube are both provided with a plurality of groups of spiral material lifting plates, and the inner front ends of the inner tube and the middle tube are both provided with a plurality of spiral guide plates.

[0009] The utility model further illustrates that the constant temperature rotary drying machine is placed on the floor of a production workshop.

[0010] The utility model further illustrates that the constant temperature rotary dryer has a compact structure and occupies a small area, which is only half of the area occupied by a single-drum dryer with the same output.

[0011] Compared with the prior art, the utility model has the following beneficial effects: in the utility model, through the rotation of the constant temperature rotary dryer, the material is lifted by the spiral lifting plates in the three groups of cylinders, and is constantly rolled, thrown, and moves longitudinally toward the discharge end. At the same time, the hot air flow from the hot air furnace successively enters the inner cylinder, the middle cylinder, and the outer cylinder to conduct strong heat exchange with the material. Since the metal steel plate conducts heat faster than the material to be dried, the steel plates and the lifting plates of the three groups of cylinders are heated first, and then the heat is transferred to the material in the form of conduction and radiation. After the material is heated, the temperature rises until the water evaporates and is separated from the material;

[0012] By using two sets of auxiliary wheels and auxiliary wheel belts together, the constant temperature rotary dryer can be assisted in its rotation when it starts to rotate. The two sets of auxiliary wheels can follow the constant temperature rotary dryer longitudinally and transversely through the auxiliary wheel belts when the constant temperature rotary dryer rotates, which reduces the workload of the two sets of reduction motors, prevents the two sets of reduction motors from burning out due to excessive rotation torque, and reduces the maintenance cost of the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 The utility model Figure 1 Schematic diagram of the interior of area A.

[0016] In the figure: 1. Constant temperature rotary dryer; 11. Outer cylinder; 2. Middle cylinder; 3. Inner cylinder; 4. Wheel belt; 5. Supporting wheel; 6. Speed ​​reduction motor; 7. Support seat; 8. First auxiliary wheel; 81. Second auxiliary wheel; 9. Auxiliary wheel belt. DETAILED DESCRIPTION

[0017] The following is a further non-limiting detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2 The utility model provides a technical solution: a constant temperature rotary dryer, including a constant temperature rotary dryer 1, which is placed on the floor of a production workshop. The constant temperature rotary dryer 1 has a compact structure and occupies a small area, which is only half the area occupied by a single-drum dryer with the same output. The internal inlay combination of the constant temperature rotary dryer 1 is provided with three groups of concentric cylinders of different diameters, namely an outer cylinder 11, a middle cylinder 2, and an inner cylinder 3. The size of the outer cylinder 11 is Φ2.2×14m. A support seat 7 is fixedly installed at the bottom of the constant temperature rotary dryer 1. Two groups of wheel belts 4 are fixedly installed at both ends of the outer cylinder 11. Two groups of reduction motors 6 are fixedly installed on the support seat 7, which are respectively located on one side of the two groups of wheel belts 4. Two groups of supporting wheels 5 are fixedly installed on the two groups of reduction motors 6. The positions of the two groups of supporting wheels 5 correspond to the positions of the two groups of wheel belts 4, and cooperate with the two groups of wheel belts 4.

[0019] An auxiliary wheel belt 9 is fixedly installed at one end of the outer cylinder 11, located on one side of the wheel belt 4, and is used to cooperate with the rotation of the constant temperature rotary dryer 1. Two sets of auxiliary wheels are fixedly installed at one end of the support seat 7, namely, a first auxiliary wheel 8 and a second auxiliary wheel 81. The first auxiliary wheel 8 is longitudinally installed on the support seat 7, corresponding to the belt surface of the auxiliary wheel belt 9, and the second auxiliary wheel 81 is transversely installed on the support seat 7, corresponding to both sides of the belt body of the auxiliary wheel belt 9. The two sets of auxiliary wheels are used to cooperate with the rotation of the outer cylinder 11;

[0020] Several groups of spiral material lifting plates are arranged inside the inner cylinder 3 and the middle cylinder 2, and several groups of spiral guide plates are arranged at the front end of the inner cylinder 3 and the middle cylinder 2 for conveying materials;

[0021] The feeding end of the constant temperature rotary dryer 1 is externally connected to a hot air furnace device such as fuel oil, gas, or coal, and the unloading end is provided with a dust cover and an automatic unloading device, and the dust cover is connected to the dust collector through a pipeline;

[0022] The constant temperature rotary drying machine 1 is driven by electric power provided by an external power supply.

[0023] In this embodiment:

[0024] When the staff needs to perform constant temperature rotary drying operation on the material, the staff first starts the external power supply, the two groups of reduction motors 6 start and drive the two groups of supporting wheels 5 to rotate. At this time, the two groups of wheel belts 4 on the constant temperature rotary dryer 1 mesh with the two groups of supporting wheels 5 and start to rotate. The material to be dried is fed into the inner cylinder 3 from the feeding end, and the material enters the inner cylinder 3 through the spiral guide plate of the inner cylinder 3. There are many spiral lifting plates inside the inner cylinder 3. The material is continuously lifted up and moves longitudinally by the lifting plates through the rotation of the inner cylinder 3. The material reaches the left end of the inner cylinder 3 and falls into the middle cylinder 2 due to its own weight. Through the spiral guide plate at the front end of the middle cylinder 2, the material is pushed back to the middle cylinder 2 under the rotation of the constant temperature rotary dryer 1. Under the action of the lifting plate in the middle cylinder 2, the material moves to the right until it reaches the right end of the middle cylinder 2. The material falls into the outer cylinder 11 under the action of its own weight, and then the material turns back and moves to the left under the action of the spiral lifting plate of the outer cylinder 11 until it falls downward into the external discharge cylinder body;

[0025] Through the rotation of the constant temperature rotary dryer 1, the material is lifted by the spiral lifting plates in the three groups of cylinders, and is constantly tumbling, throwing, and moving longitudinally toward the discharge end. At the same time, the hot air flow from the hot air furnace enters the inner cylinder 3, the middle cylinder 2, and the outer cylinder 11 successively to exchange intense heat with the material. Since the metal steel plate conducts heat faster than the material to be dried, the steel plates and lifting plates of the three groups of cylinders are heated first, and then transfer the heat to the material by conduction and radiation. After being heated, the temperature of the material rises until the water evaporates and is separated from the material;

[0026] By using two sets of auxiliary wheels in conjunction with the auxiliary wheel belt 9, the constant temperature rotary dryer 1 can be assisted in its rotation when it starts to rotate. When the constant temperature rotary dryer 1 rotates, the two sets of auxiliary wheels follow the auxiliary wheel belt 9 in the longitudinal and transverse directions, thereby reducing the workload of the two sets of reduction motors 6, preventing the two sets of reduction motors 6 from burning out due to excessive rotational torque, and reducing the maintenance cost of the factory.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A constant temperature rotary dryer, comprising a constant temperature rotary dryer (1), characterized in that: The constant temperature rotary dryer (1) is internally provided with three groups of concentric cylinders of different diameters, which are respectively an outer cylinder (11), a middle cylinder (2) and an inner cylinder (3). A support seat (7) is fixedly installed at the bottom of the constant temperature rotary dryer (1). Two groups of wheel belts (4) are fixedly installed at both ends of the outer cylinder (11). Two groups of reduction motors (6) are fixedly installed on the support seat (7), which are respectively located on one side of the two groups of wheel belts (4). Two groups of supporting wheels (5) are fixedly installed on the two groups of reduction motors (6). The positions of the two groups of supporting wheels (5) correspond to the positions of the two groups of wheel belts (4) and cooperate with the two groups of wheel belts (4). An auxiliary wheel belt (9) is fixedly mounted on one end of the outer cylinder (11) and is located on one side of the wheel belt (4). Two sets of auxiliary wheels are fixedly mounted on one end of the support seat (7), namely a first auxiliary wheel (8) and a second auxiliary wheel (81). The first auxiliary wheel (8) is longitudinally mounted on the support seat (7) and corresponds to the belt surface of the auxiliary wheel belt (9). The second auxiliary wheel (81) is transversely mounted on the support seat (7) and corresponds to both sides of the belt body of the auxiliary wheel belt (9). A plurality of sets of spiral material lifting plates are arranged inside the inner cylinder (3) and the middle cylinder (2). A plurality of sets of spiral guide plates are arranged at the front ends of the inner cylinder (3) and the middle cylinder (2).

2. A constant temperature rotary drying machine according to claim 1, characterized in that: The constant temperature rotary drying machine (1) is placed on the floor of a production workshop.

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