CN212006557U - Hollow paddle dryer - Google Patents

Abstract

The utility model relates to the technical field of dryers, in particular to a hollow blade dryer, comprising an inner pipe body, an outer pipe body, a conveying pipe, a guide plate and a hollow blade, wherein the inner pipe body is arranged on the outer side of the outer pipe body. In the inner cavity, the hollow paddle is arranged on the outer peripheral wall of the outer tube body, one end of the conveying tube is communicated with the inner cavity of the inner tube body, and the other end of the conveying tube passes through the inner tube body, the outer tube body and is connected to the inner tube body. It is communicated with the inner cavity of the hollow paddle, and a first through hole communicating with each other is opened between the hollow paddle and the outer tube body. At both ends, when the hollow blade dryer of the present invention is in use, the angle between the inner side wall and the outer side wall of the hollow blade is set to be an obtuse angle, so that the condensed water will follow the rotation direction and the inner side wall of the hollow blade. Under the action of diversion, it enters the first through hole, so that condensed water will not accumulate in a corner of the hollow blade.

Description

Hollow paddle dryer

technical field

The utility model relates to the technical field of dryers, in particular to a hollow blade dryer.

Background technique

The hollow paddle dryer is a continuous, high-efficiency, low-speed stirring drying equipment. It is suitable for drying powdery, granular or viscous materials such as chemicals, synthetic resins, minerals, medicines, feeds, dyes and food. The working principle of the hollow blade dryer is to indirectly heat the material through the cylinder and the hollow blade shaft, and use the propelling action of the blade to achieve continuous drying production; the hollow blade of the dryer is the main heat transfer component, and the hollow blade is the main heat transfer component. The heat transfer efficiency of the leaves directly determines the processing capacity of the equipment. The heat source used by the hollow blade dryer can be steam, hot water, heat transfer oil, etc.; steam is the most efficient and most suitable heat source for hollow blade heat transfer. The key measure to ensure the efficient heat transfer of steam is to enable the condensed water after the heat transfer of the steam in the hollow blade to be discharged in a timely and smooth manner. Therefore, the discharge efficiency of condensed water in the hollow blade is one of the key factors that determine the processing capacity of the hollow blade dryer. Since the hollow blade rotates continuously with the main shaft, the angle between the side wall of the existing hollow blade on the drain side and the direction of rotation is an acute angle, which can easily lead to the accumulation of condensed water in the corners, thus affecting the hollow blade. The heat transfer of the blades reduces the work efficiency and increases the energy consumption.

Utility model content

The technical problem to be solved by the utility model is: in order to solve the problem that the angle between the side wall of the existing hollow blade on the drainage side and the rotation direction is an acute angle, and this easily causes the condensation water to accumulate in the corner, thereby affecting the To the heat transfer performance of the hollow blade, the work efficiency is reduced, and the problem of energy consumption is also increased. Now a hollow blade dryer is provided.

The technical solution adopted by the utility model to solve the technical problem is: a hollow blade dryer, comprising an inner pipe body, an outer pipe body, a conveying pipe, a guide plate and a hollow blade, and the inner pipe body is arranged on the outer pipe In the inner cavity of the body, the hollow paddle is arranged on the outer peripheral wall of the outer tube body, one end of the conveying tube is communicated with the inner cavity of the inner tube body, and the other end of the conveying tube passes through the inner tube body and the outer tube. and communicate with the inner cavity of the hollow paddle, the hollow paddle and the outer tube body are provided with a first through hole that communicates with each other, and the conveying pipe and the first through hole are respectively arranged in the hollow paddle along the rotation direction. At both ends of the blade, the baffles are arranged in the inner cavity of the hollow blade, the baffles are located on the side of the hollow blade away from the conveying pipe, and the baffles are located between the conveying roller and the first through hole the guide plate is inclined along the rotation direction, and the included angle between the inner side wall of the hollow paddle on one side of the first through hole and the outer side wall of the hollow paddle is an obtuse angle. By setting the angle between the inner side wall and the outer side wall of the hollow blade to be an obtuse angle, the condensed water will enter the first through hole with the direction of rotation and under the guiding action of the inner side wall of the hollow blade, so that no Condensation appears to collect in one corner of the hollow blade.

Further, the deflector has an arc-shaped structure, and the inner concave surface of the deflector is located on the side close to the conveying pipe.

Further, a second through hole is formed on the baffle plate, and the second through hole penetrates through both side walls of the baffle plate along the rotation direction of the hollow blade. The second through hole can make one side of the deflector communicate with the other side, so that a part of the heating medium can reach the back of the deflector, so that the interior of the hollow blade can conduct heat evenly.

In order to prevent the condensed water from returning to the conveying pipe, further, the hollow paddle is provided with a baffle plate on one side of the conveying pipe, and the baffle is located between the conveying pipe and the first through hole. By arranging a baffle plate between the conveying pipe and the first through hole, the overflowing condensed water can be blocked and returned to the first through hole.

In order to prevent the condensed water in the inner cavity of the outer tube from being thrown out into the inner cavity of the hollow blade, further, a partition is provided on the inner peripheral wall of the outer tube, and the partition is located between the conveying pipe and the first through hole. In between, the baffle plate is inclined along the rotation direction, and the baffle plate is located above the first through hole and is disposed correspondingly to it. By arranging a baffle plate in the inner peripheral wall of the outer pipe body, and the baffle plate is located above the first through hole, it is possible to enter the outer pipe body.

The beneficial effects of the utility model are: when the hollow paddle dryer of the present utility model is in use, the angle between the inner side wall and the outer side wall of the hollow paddle is set to be an obtuse angle, so that the condensed water will follow the rotation direction and spread in the hollow blade. Under the guiding action of the inner side wall of the blade, it enters the first through hole, so that the condensed water will not gather in a corner of the hollow blade, and the existing hollow blade is located in the hollow blade due to the continuous rotation of the main shaft. The angle between the side wall on the drain side and the direction of rotation is an acute angle, which can easily lead to the accumulation of condensed water in the corner, which affects the heat transfer performance of the hollow blade, which reduces the work efficiency and increases the the issue of energy consumption.

Description of drawings

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Figure 1 is a front view of the present invention.

In the figure: 1. Inner pipe body, 2. Outer pipe body, 3. Conveying pipe, 4. Baffle plate, 5. Hollow paddle, 6. First through hole, 7. Second through hole, 8. Baffle plate , 9, the partition.

Detailed ways

The present utility model will now be described in further detail in conjunction with the accompanying drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

As shown in FIG. 1, a hollow blade dryer includes an inner pipe body 1, an outer pipe body 2, a conveying pipe 3, a deflector 4 and a hollow blade 5, and the inner pipe body 1 is arranged on the outer pipe body 2. In the inner cavity of the outer tube body 2, the hollow paddle 5 is arranged on the outer peripheral wall of the outer tube body 2, one end of the conveying tube 3 is communicated with the inner cavity of the inner tube body 1, and the other end of the conveying tube 3 passes through the inner tube The body 1, the outer tube body 2 and the inner cavity of the hollow paddle 5 are connected. The through holes 6 are respectively arranged at both ends of the hollow paddle 5 along the rotation direction, that is, the conveying pipe 3 is arranged in front of the first through hole 6 along the rotation direction, and the deflector 4 is arranged inside the hollow paddle 5 . In the cavity, the baffle 4 is located on the side of the hollow paddle 5 away from the conveying pipe 3, that is, the baffle 4 and the conveying pipe 3 are arranged opposite to each other, and the baffle 4 is located between the conveying roller and the first through hole 6. In between, the deflector 4 is inclined along the rotation direction, and the included angle between the inner side wall of the hollow paddle 5 on one side of the first through hole 6 and the outer wall of the hollow paddle 5 is an obtuse angle.

The deflector 4 has an arc-shaped structure, and the inner concave surface of the deflector 4 is located on the side close to the conveying pipe 3 .

The guide plate 4 is provided with a second through hole 7 , and the second through hole 7 penetrates both side walls of the guide plate 4 along the rotation direction of the hollow paddle 5 .

The hollow blade 5 is provided with a baffle 8 on one side of the conveying pipe 3 , and the baffle 8 is located between the conveying pipe 3 and the first through hole 6 .

A partition 9 is provided on the inner peripheral wall of the outer pipe body 2, the partition 9 is located between the conveying pipe 3 and the first through hole 6, the partition 9 is inclined along the rotation direction, and the partition 9 It is located above and corresponding to the first through hole 6 .

When the above-mentioned hollow blade 5 dryer is in use, the steam is input from the inner pipe body 1 and enters the hollow blade 5 through the conveying pipe 3. The lower baffle 8 is displaced in the direction, and a part of the steam will reach the other side of the deflector 4 through the second through hole 7. The baffle 8 and the deflector 4 increase the path for the steam to pass, so that the hollow blade 5 can Better contact with the steam, so that the steam can conduct heat to the hollow blade 5, and at the same time the steam enters the inner cavity of the outer tube body 2 through the first through hole 6, and condensed water will appear when the steam conducts heat, As the condensed water increases and gathers together, the condensed water enters the first through hole 6 under the guiding action of the inner side wall on one side of the first through hole 6, and at the same time, the condensed water is prevented from entering the first through hole 6 under the action of the partition plate 9. Under the action of centrifugal force, it enters the hollow blade 5 again.

The above ideal embodiment according to the present invention is enlightenment. Through the above description, the relevant staff can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present utility model is not limited to the content in the description, and its technical scope must be determined according to the scope of the claims.

Claims (5)

1. A hollow blade dryer, characterized in that: it comprises an inner pipe body (1), an outer pipe body (2), a conveying pipe (3), a deflector (4) and a hollow blade (5), The inner pipe body (1) is arranged in the inner cavity of the outer pipe body (2), the hollow paddle (5) is arranged on the outer peripheral wall of the outer pipe body (2), and one end of the conveying pipe (3) is connected to the inner cavity of the outer pipe body (2). The inner cavity of the pipe body (1) is communicated, and the other end of the conveying pipe (3) passes through the inner pipe body (1) and the outer pipe body (2) and communicates with the inner cavity of the hollow blade (5). A first through hole (6) that communicates with each other is opened between the hollow blade (5) and the outer pipe body (2), and the conveying pipe (3) and the first through hole (6) are respectively arranged in the rotation direction in sequence. Both ends of the hollow paddle (5), the deflector (4) is arranged in the inner cavity of the hollow paddle (5), and the deflector (4) is located at the hollow paddle (5) away from the conveying pipe ( 3) one side, the deflector (4) is located between the conveying roller and the first through hole (6), the deflector (4) is inclined along the rotation direction, the hollow paddle (5) The included angle between the inner side wall on one side of the first through hole (6) and the outer side wall of the hollow blade (5) is an obtuse angle. 2. The hollow blade dryer according to claim 1, characterized in that: the deflector (4) is an arc-shaped structure, and the inner concave surface of the deflector (4) is located close to the conveying pipe (3) side. 3. The hollow paddle dryer according to claim 1, characterized in that: a second through hole (7) is formed on the deflector (4), and the second through hole (7) is along the hollow paddle. The rotation direction of the vane (5) penetrates the two side walls of the deflector (4). 4. The hollow blade dryer according to claim 1, characterized in that: the hollow blade (5) is provided with a baffle plate (8) on one side of the conveying pipe (3), and the baffle plate (8) It is located between the conveying pipe (3) and the first through hole (6). 5. The hollow blade dryer according to claim 1, characterized in that: a partition plate (9) is provided on the inner peripheral wall of the outer pipe body (2), and the partition plate (9) is located in the conveying pipe ( 3) and the first through hole (6), the baffle plate (9) is inclined along the rotation direction, and the baffle plate (9) is located above the first through hole (6) and is disposed correspondingly to it.

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