Double-cone drying machine for preparing benzophenone hydrazone diester

Abstract

The double-cone drying machine comprises a machine frame and a tank body which are arranged in a concave shape, the tank body is installed in the machine frame, a transversely-arranged lifting plate is arranged over the machine frame, the front side and the rear side of the tank body are each provided with a vertically-arranged protection plate, and the front side and the rear side of the tank body are each provided with a vertically-arranged protection plate. The upper end of the protection plate is fixedly connected with the lower end of the lifting plate, the front side and the rear side of the rack are each fixedly connected with a pair of vertically-arranged electric push rods, the lower ends of the electric push rods are fixedly connected with supporting blocks, and the upper ends of the electric push rods are fixedly connected with the lower end of the lifting plate. Effective safety protection is provided for the drying machine, feeding and discharging are convenient, and operation convenience and safety are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of drying technology, and in particular to a double cone dryer for the preparation of benzophenone hydrazone diester. Background Technology

[0002] A double cone dryer is a rotating tank with two cones. Under vacuum conditions, steam or hot water is introduced into the jacket for heating. The heat comes into contact with the wet material through the inner wall of the tank. The water vapor evaporated after the wet material absorbs heat is drawn away by a vacuum pump through a vacuum exhaust pipe. Because the tank is under vacuum and the rotation of the tank causes the material to move 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. In the preparation of benzophenone hydrazone diester, a double cone dryer is often required for drying operations.

[0003] The preparation of benzophenone hydrazone diester uses a double-cone dryer with a double-cone rotating tank. During operation, the cones rotate 360 ​​degrees, which can easily cause injury to personnel if not properly protected. Currently, conventional methods generally involve painting safety warning lines on the ground to remind personnel not to approach the danger zone, or setting up fences. The former still carries the risk of injury, while the latter requires the fence to be moved every time materials are loaded or unloaded, and both convenience and safety need to be improved. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to provide a double cone dryer for the preparation of benzophenone hydrazone diester.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A double-cone dryer for preparing benzophenone hydrazone diester includes a U-shaped frame and a tank. The tank is installed inside the frame. A horizontally arranged lifting plate is provided on the top of the frame. Vertically arranged protective plates are provided on both the front and rear sides of the tank. The upper end of the protective plate is fixedly connected to the lower end of the lifting plate. A pair of vertically arranged electric push rods are fixedly connected to both the front and rear sides of the frame. The lower end of the electric push rod is fixedly connected to a support block, and the upper end of the electric push rod is fixedly connected to the lower end of the lifting plate.

[0007] Preferably, the protective plate has an observation port, and an acrylic plate made of transparent material is fixedly embedded in the observation port.

[0008] Preferably, a warning sticker is fixedly connected to the side of the protective plate away from the tank.

[0009] Preferably, a first fixing ring is fixedly sleeved on the electric push rod, and the outer side wall of the first fixing ring is fixedly connected to the outer side wall of the frame.

[0010] Preferably, a second fixing ring is fixedly sleeved on the upper end of the electric push rod, and the upper end of the second fixing ring is fixedly connected to the lower end of the lifting plate.

[0011] Preferably, a fixing sleeve is fixedly sleeved at the lower end of the electric push rod, and the lower end of the fixing sleeve is fixedly connected to the upper end of the support block.

[0012] Preferably, connecting blocks are fixedly connected to both sides of the protective plate, and the upper end of the connecting block is fixedly connected to the lower end of the lifting plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model adopts a combined design of electric push rod, lifting plate and protective plate to provide external protection for the dryer, effectively avoiding safety hazards caused by accidental worker approach. While ensuring safety, it also facilitates loading and unloading operations, achieving a dual improvement in convenience and safety. By setting support blocks, fixing cylinders and first and second fixing rings, this utility model enhances the stability of the electric push rod and improves reliability during use. This utility model not only provides effective safety protection for the dryer, but also makes loading and unloading more convenient, significantly improving the convenience and safety of operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a double cone dryer for the preparation of benzophenone hydrazone diester proposed in this utility model;

[0016] Figure 2 This is a front view schematic diagram of a double cone dryer for the preparation of benzophenone hydrazone diester proposed in this utility model;

[0017] Figure 3 This is a partial overhead cross-sectional view of a double cone dryer for preparing benzophenone hydrazone diester proposed in this utility model.

[0018] In the diagram: 1-Frame, 2-Tank, 3-Electric push rod, 4-Support block, 5-Fixing cylinder, 6-First fixing ring, 7-Lifting plate, 8-Protective plate, 9-Second fixing ring, 10-Acrylic plate, 11-Connecting block, 12-Warning sticker. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-3A double cone dryer for preparing benzophenone hydrazone diester includes a U-shaped frame 1 and a tank 2. The tank 2 is installed inside the frame 1 (the frame 1 and the tank 2 form a double cone dryer, which is existing technology and will not be described in detail here). A horizontally arranged lifting plate 7 is provided on the top of the frame 1 to drive the protective plate 8 to rise and fall. Vertically arranged protective plates 8 are provided on both the front and rear sides of the tank 2 for safety protection. The distance between the two protective plates 8 is greater than the overall length of the tank 2 to avoid affecting the rotation of the tank 2. The upper end of the protective plate 8 is fixedly connected to the lower end of the lifting plate 7.

[0021] In this embodiment, the protective plate 8 is provided with an observation port, and a transparent acrylic plate 10 is fixedly embedded in the observation port to facilitate the user's observation of the tank 2. A warning sticker 12 is fixedly connected to the side of the protective plate 8 away from the tank 2 to serve as a safety warning. Connecting blocks 11 are fixedly connected to both sides of the protective plate 8 to support the protective plate 8. The upper end of the connecting block 11 is fixedly connected to the lower end of the lifting plate 7.

[0022] In this embodiment, a pair of vertically arranged electric push rods 3 are fixedly connected to both the front and rear sides of the frame 1, which are used to drive the lifting plate 7 to rise and fall. The lower end of the electric push rod 3 is fixedly connected to a support block 4 for supporting the electric push rod 3. The upper end of the electric push rod 3 is fixedly connected to the lower end of the lifting plate 7.

[0023] In this embodiment, a first fixing ring 6 is fixedly sleeved on the electric push rod 3 to improve the firmness between the electric push rod 3 and the frame 1. The outer side wall of the first fixing ring 6 is fixedly connected to the outer side wall of the frame 1. A second fixing ring 9 is fixedly sleeved on the upper end of the electric push rod 3 to improve the firmness between the electric push rod 3 and the lifting plate 7. The upper end of the second fixing ring 9 is fixedly connected to the lower end of the lifting plate 7. A fixing cylinder 5 is fixedly sleeved on the lower end of the electric push rod 3 to improve the firmness between the electric push rod 3 and the support block 4. The lower end of the fixing cylinder 5 is fixedly connected to the upper end of the support block 4.

[0024] In this embodiment, firstly, the electric push rod 3 is activated to drive the lifting plate 7 to descend, which in turn drives the protective plate 8 to descend synchronously. The main function of the protective plate 8 is to prevent the user from accidentally approaching the tank 2 and getting injured. It is lowered to about two-thirds of the height of the tank 2. This ensures safety and avoids completely obscuring the tank 2, ensuring that the discharge port at the lower end is clearly visible, which is convenient for the user to unload materials. Conversely, when loading materials, the electric push rod 3 is operated again to raise the lifting plate 7 and the protective plate 8, thereby exposing the feed port of the tank 2, which is convenient for the user to complete the loading operation smoothly.

[0025] As described above, the base, tank, and electric push rod are existing mature technologies, and their working principles and internal structures are known to those skilled in the art. This application only utilizes their functions and does not improve their internal structures; therefore, it will not be described in detail.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double cone dryer for preparing benzophenone hydrazone diester, comprising a concave-shaped arranged frame (1) and a tank body (2), characterized in that: The tank body (2) is installed in the rack (1), the upper side of the rack (1) is provided with the transversely arranged lifting plate (7), the front and rear sides of the tank body (2) are both provided with the vertically arranged protection plate (8), the upper end of the protection plate (8) is fixedly connected with the lower end of the lifting plate (7), the front and rear sides of the rack (1) are both fixedly connected with a pair of vertically arranged electric push rods (3), the lower end of the electric push rod (3) is fixedly connected with the supporting block (4), and the upper end of the electric push rod (3) is fixedly connected with the lower end of the lifting plate (7).

2. A double cone dryer for the preparation of benzophenone hydrazone diesters according to claim 1, characterized in that: The protection plate (8) is provided with an observation hole, and the observation hole is fixedly embedded with the acrylic plate (10) made of transparent material.

3. A double cone dryer for the preparation of benzophenone hydrazone diesters according to claim 1, characterized in that: The side, away from the tank body (2), of the protection plate (8) is fixedly connected with the warning sticker (12).

4. A double cone dryer for the preparation of benzophenone hydrazone diesters according to claim 1, characterized in that: The electric push rod (3) is fixedly sleeved with the first fixing ring (6), and the outer side wall of the first fixing ring (6) is fixedly connected with the outer side wall of the rack (1).

5. A double cone dryer for the preparation of benzophenone hydrazone diesters according to claim 1, characterized in that: The upper end of the electric push rod (3) is fixedly sleeved with the second fixing ring (9), and the upper end of the second fixing ring (9) is fixedly connected with the lower end of the lifting plate (7).

6. A double cone dryer for the preparation of benzophenone hydrazone diesters according to claim 1, characterized in that: The lower end of the electric push rod (3) is fixedly sleeved with the fixing cylinder (5), and the lower end of the fixing cylinder (5) is fixedly connected with the upper end of the supporting block (4).

7. A double cone dryer for the preparation of benzophenone hydrazone diesters according to claim 1, characterized in that: The two sides of the protection plate (8) are both fixedly connected with the connecting block (11), and the upper end of the connecting block (11) is fixedly connected with the lower end of the lifting plate (7).

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