CN219713865U - Bipyramid gyration vacuum drying system - Google Patents

Abstract

The utility model discloses a double-cone rotary vacuum drying system, which includes a rotary tank. A jacket is provided on the outside of the rotary tank. A main feed port is provided on the top of the rotary tank, and a main discharge port is provided on the bottom of the rotary tank. , an active hollow shaft is fixedly connected to one side of the rotary tank, and a driven hollow shaft is fixed to the other side of the rotating tank. A feed pipe that rotates synchronously with the active hollow shaft is threaded inside, and the driven hollow shaft is threaded inside. There is a discharge pipe that rotates synchronously with it. The opposite inner ends of the active hollow shaft and the discharge pipe are connected to the tee; the inner end of the discharge pipe is provided with a flared portion, and the flared portion is connected to one side of the tee. The ports are fixedly connected, the other side port of the tee is blocked, and the bottom port of the tee is connected to the conduit. The utility model can supply liquid materials to the rotary tank and export dry materials under normal pressure or vacuum conditions, thereby improving the application range and the drying efficiency of materials.

Description

A double cone rotary vacuum drying system

Technical field

The utility model relates to a double-cone rotary vacuum drying system, which belongs to the technical field of vacuum drying.

Background technique

The double-cone rotary vacuum dryer is a double-cone rotary tank. When the tank is in a vacuum state, steam or hot water is introduced into the jacket for heating. The heat contacts the wet material through the inner wall of the tank, and the wet material absorbs heat and evaporates. The water vapor is pumped away through the vacuum exhaust pipe through the vacuum pump. Since the tank is in a vacuum state and the rotation of the tank causes the material to continuously turn up and down and inside and out, the drying speed of the material is accelerated, the drying efficiency is improved, and the purpose of uniform drying is achieved. .

There are various double-cone rotary vacuum dryers in the prior art, such as patent number CN201110055103.4, a disclosed double-cone rotary vacuum drying system, and patent number CN201520097554.8, a disclosed new double-cone rotary equipment. The existing double cone rotary vacuum dryer can basically meet the needs of use, but there are still shortcomings during use:

During the process of materials entering and exiting the rotary tank, the inside of the rotary tank can only be in a normal pressure state, which reduces the application scope of the double cone rotary vacuum dryer; for each batch of materials to be dried, the inner cavity of the rotary tank must be evacuated again, so that Relatively speaking, it requires longer drying time, which affects the drying efficiency of the material.

In summary, it can be seen that the existing technology obviously has inconveniences and defects in actual use, so it is necessary to improve it.

Utility model content

In view of the deficiencies in the background technology, the utility model provides a double-cone rotary vacuum drying system, which can supply liquid materials to the rotary tank and export dry materials under normal pressure or vacuum conditions, thereby improving the scope of application. And the drying efficiency of materials.

In order to solve the above technical problems, this utility model adopts the following technical solutions:

A double-cone rotary vacuum drying system includes a rotary tank, a jacket is provided on the outside of the rotary tank, a main feed port is provided at the top of the rotary tank, and a main discharge port is provided at the bottom of the rotary tank. An active hollow shaft is fixedly connected to one side of the body, and a driven hollow shaft is fixed to the other side of the rotary tank. A feeding tube that rotates synchronously with the active hollow shaft is threaded inside, and a driven hollow shaft is threaded with it inside. The synchronously rotating discharge pipe, the active hollow shaft and the opposite inner ends of the discharge pipe are connected to the tee;

The inner end of the discharge pipe is provided with a flared portion, the flared portion is fixedly connected to one side port of the tee, the other side port of the tee is blocked, and the bottom port of the tee is connected to the conduit.

In an optimized solution, the inner end of the active hollow shaft is provided with an elbow part, and the elbow part passes through the tee and is connected to the vacuum filter.

Preferably, the outer end of the active hollow shaft is provided with a suction rotary joint, and the suction rotary joint is connected to the vacuum pump.

Preferably, there is an air circulation gap between the outer wall of the feed pipe and the inner wall of the active hollow shaft. The inner end of the feed pipe is provided with an elbow part. The elbow part passes through the axis wall of the active hollow shaft and is located in the inner cavity of the rotary tank. .

Preferably, the outer end of the feed pipe is provided with a feed rotary joint.

Preferably, the inner end of the driven hollow shaft is connected with the jacket outside the rotary tank, and the outer end of the driven hollow shaft is provided with an air inlet rotary joint.

Preferably, the outer end of the discharge pipe is provided with a discharge rotary joint, and the discharge rotary joint is connected to the negative pressure suction device.

Preferably, an electromagnetic switch valve is provided on the end of the conduit away from the tee.

Preferably, the active hollow shaft is connected to the drive device.

After adopting the above technical solution, the utility model has the following advantages compared with the existing technology:

There are two ways of entering and exiting the material in this utility model. One way is that the material enters and exits the inner cavity of the rotary tank under normal pressure. The other way is that the material is pumped to the rotary tank through the feed rotary joint and the feed pipe. In the body cavity, after the material is dried, it is exported through the conduit, tee and discharge pipe under negative pressure. The second method of material in and out can realize the function of supplying liquid material to the rotary tank and exporting dry material under vacuum. It solves the problem of re-vacuuming each batch of materials, improves the drying efficiency of materials, and increases the application scope of the double-cone rotary vacuum drying system.

The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model;

Figure 2 is an enlarged view of the structure at A in Figure 1;

Figure 3 is an enlarged view of the structure at B in Figure 1;

Figure 4 is an enlarged view of the structure at C in Figure 1.

In the picture, 1-rotary tank, 2-main inlet, 3-main outlet, 4-active hollow shaft, 5-driven hollow shaft, 6-tee, 7-vacuum filter, 8-inlet Material pipe, 9-suction rotary joint, 10-feed rotary joint, 11-inlet rotary joint, 12-discharge pipe, 13-discharge rotary joint, 14-conduit, 15-electromagnetic switch valve.

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention will now be described with reference to the accompanying drawings.

As shown in Figures 1 to 4 together, the utility model provides a double-cone rotary vacuum drying system, which includes a rotary tank 1. A jacket is provided on the outside of the rotary tank 1, and a main feed is provided on the top of the rotary tank 1. Port 2, the bottom end of the rotary tank 1 is provided with a main discharge port 3.

An active hollow shaft 4 is fixedly connected to one side of the rotary tank 1, and a driven hollow shaft 5 is fixed to the other side of the rotary tank 1. A feed pipe 8 is threaded inside the active hollow shaft 4 and rotates synchronously with it. A discharging pipe 12 that rotates synchronously with the moving hollow shaft 5 is penetrated inside. The opposite inner ends of the driving hollow shaft 4 and the discharging pipe 12 are connected to the tee 6 .

The active hollow shaft 4 is connected with the driving device, and the driving device provides power for the rotary motion of the rotary tank 1.

The inner end of the active hollow shaft 4 is provided with an elbow part, which passes through the tee 6 and is connected to the vacuum filter 7. The outer end of the active hollow shaft 4 is provided with a suction rotary joint 9, and the suction rotary joint 9 Connected to a vacuum pump, the vacuum pump extracts the water vapor evaporated from the material from the rotary tank 1 through the active hollow shaft 4.

There is an air circulation gap between the outer wall of the feed pipe 8 and the inner wall of the active hollow shaft 4. The inner end of the feed pipe 8 is provided with an elbow part. The elbow part passes through the axis wall of the active hollow shaft 4 and is located in the rotary tank 1. In the inner cavity, a feeding rotary joint 10 is provided at the outer end of the feeding pipe 8 . Materials can enter the inner cavity of the rotary tank 1 from the feed rotary joint 10 through the feed pipe 8 .

The inner end of the driven hollow shaft 5 is connected with the jacket outside the rotary tank 1 , and the outer end of the driven hollow shaft 5 is provided with an air inlet rotary joint 11 . Steam can enter the jacket of the rotary tank 1 through the air inlet rotary joint 11 and the driven hollow shaft 5 to provide a heat source for drying the materials.

The inner end of the discharge pipe 12 is provided with a flared portion. The flared portion is fixedly connected to one side port of the tee 6. The other side port of the tee 6 is blocked, and the bottom port of the tee 6 is blocked. Connected to conduit 14.

The outer end of the discharge pipe 12 is provided with a discharge rotary joint 13. The discharge rotary joint 13 can be connected to a negative pressure suction device. The negative pressure suction device passes the dried material in the inner cavity through the conduit 14 and tee 6. And it is exported at 12 points of the discharge pipe.

The end of the conduit 14 away from the tee 6 is provided with an electromagnetic switch valve 15. During the drying process of the material, the electromagnetic switch valve 15 is in a closed state. After the material is dried, the electromagnetic switch valve 15 is in an open state.

The specific working principle of this utility model:

The steam of this utility model enters the jacket of the rotary tank 1 through the air inlet rotary joint 11 and the driven hollow shaft 5, providing a heat source for drying the materials in the inner cavity of the rotary tank 1; there are two ways of entering and exiting the materials in this utility model. , one way is that the material enters the inner cavity of the rotary tank 1 from the main feed port 2 under normal pressure, and is exported from the main outlet 3 after drying. The other way is that the material is discharged from the feed rotary joint 10, The feed pipe 8 is pumped to the inner cavity of the rotary tank 1. After drying, the material is led out through the conduit 14, the tee 6 and the discharge pipe 12 under the action of negative pressure. The second material entry and exit method can realize the functions of supplying liquid materials to the rotary tank 1 and exporting dry materials in a vacuum state.

The above are examples of the best embodiments of the present invention, and the parts not described in detail are common knowledge to those of ordinary skill in the art. The protection scope of the present utility model is subject to the content of the claims. Any equivalent transformation based on the technical inspiration of the present utility model is also within the protection scope of the present utility model.

Claims (9)

1. A double-cone rotary vacuum drying system, including a rotary tank (1). A jacket is provided on the outside of the rotary tank (1). A main feed port (2) is provided on the top of the rotary tank (1). The bottom end of the tank (1) is provided with a main discharge port (3), which is characterized in that: one side of the rotating tank (1) is fixedly connected with an active hollow shaft (4), and the other side of the rotating tank (1) A driven hollow shaft (5) is fixedly connected to the side, a feed pipe (8) that rotates synchronously with the active hollow shaft (4) is penetrated inside, and a discharge pipe that rotates synchronously with the driven hollow shaft (5) is penetrated with it. The opposite inner ends of the pipe (12), the active hollow shaft (4) and the discharge pipe (12) are all connected to the tee (6); The inner end of the discharge pipe (12) is provided with a flared portion. The flared portion is fixedly connected to one side port of the tee (6). The other side port of the tee (6) is blocked. The tee The bottom port of (6) is connected to the conduit (14). 2. A double-cone rotary vacuum drying system as claimed in claim 1, characterized in that: the inner end of the active hollow shaft (4) is provided with an elbow part, and the elbow part passes through the tee (6) and is connected to the vacuum Filter (7) is connected. 3. A double-cone rotary vacuum drying system as claimed in claim 2, characterized in that: the outer end of the active hollow shaft (4) is provided with a suction rotary joint (9), and the suction rotary joint (9) is connected to the vacuum pump. connected. 4. A double-cone rotary vacuum drying system as claimed in claim 1, characterized in that: there is an air circulation gap between the outer wall of the feed pipe (8) and the inner wall of the active hollow shaft (4), and the feed pipe (8) ) is provided with an elbow portion at its inner end, and the elbow portion passes through the shaft wall of the active hollow shaft (4) and is located in the inner cavity of the rotary tank (1). 5. A double-cone rotary vacuum drying system as claimed in claim 4, characterized in that: the outer end of the feed pipe (8) is provided with a feed rotary joint (10). 6. A double-cone rotary vacuum drying system as claimed in claim 1, characterized in that: the inner end of the driven hollow shaft (5) is connected with the outer jacket of the rotary tank (1), and the driven hollow shaft The outer end of (5) is provided with an air inlet rotary joint (11). 7. A double-cone rotary vacuum drying system as claimed in claim 1, characterized in that: the outer end of the discharge pipe (12) is provided with a discharge rotary joint (13), and the discharge rotary joint (13) is connected with the negative The pressure suction device is connected. 8. A double-cone rotary vacuum drying system according to claim 1, characterized in that an electromagnetic switch valve (15) is provided on the end of the conduit (14) away from the tee (6). 9. A double cone rotary vacuum drying system according to claim 1, characterized in that: the active hollow shaft (4) is connected to the driving device.