Acetic anhydride residue drying kettle easy for continuous operation
By setting up conveying components on the feed pipe of the drying kettle, and using structures such as spiral blades and telescopic rod push blocks driven by the motor, the closed transport of acetic anhydride residue is achieved, which solves the problem of heat loss in the drying kettle and improves the continuous operation efficiency.
Patent Information
- Application Number
- CN202421658108.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-07-15
AI Technical Summary
During the continuous operation of acetic anhydride residue in the existing drying kettle, the heat loss is severe, which affects the drying efficiency and the feeding method is complicated.
The conveying components include motor-driven spiral blades, telescopic rod push blocks, rotating rotary plate parts and sliding gate plates, and other structures are adopted to control the sealed delivery of acetic anhydride residue in the feed pipe to reduce heat loss.
Continuous drying of acetic anhydride residue is realized, which reduces heat loss and improves drying efficiency and continuous operation ability.
Smart Images
Figure CN223243257U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical equipment, in particular to an acetic anhydride residue drying kettle which is easy to operate continuously. Background Art
[0002] Acetic anhydride, as an important chemical raw material, is widely used in numerous fields. However, the production process of acetic anhydride inevitably produces residues. While these residues contain a certain amount of useful substances, the acetic anhydride residues also contain a certain amount of moisture during production, which increases the risks during storage and transportation. Therefore, the acetic anhydride residues must be dried, often using a drying kettle. Drying kettles can remove moisture from the acetic anhydride residues, preventing further decomposition. Drying kettles also help improve their thermal stability and reduce risks during storage and transportation.
[0003] However, when using a drying kettle to dry acetic anhydride residue, a sealed door is generally provided at the feed port. When feeding the material into the drying kettle, the sealed door is opened to pour the acetic anhydride residue into the drying kettle, and then the sealed door is closed after the drying is completed. However, this operation method is relatively cumbersome. Sometimes, in order to facilitate continuous operation, the interior of the drying kettle is generally connected to the silo through a connecting pipe. When it is necessary to feed the material into the drying kettle, the valve is opened to allow the external acetic anhydride residue to enter the drying kettle through the pipe. However, this feeding method will cause There is a certain amount of heat loss inside the drying kettle. When the feed pipe is directly connected to the external conveying equipment, the acetic anhydride residue is a solid and in most cases it is transported by gravity. Therefore, during transportation, a gap will inevitably be generated between the acetic anhydride residue and the feed pipe. The size of the gap is uncontrollable. When the gap is large, the heat inside the drying kettle body will flow to the outside through the gap, thereby causing the heat inside the drying kettle to decrease and affecting the drying efficiency of the acetic anhydride residue, which is not conducive to the continuous operation of the acetic anhydride residue. Utility Model Content
[0004] The embodiment of the utility model provides an acetic anhydride residue drying kettle which is easy to operate continuously, so as to solve the above-mentioned technical problems.
[0005] The embodiment of the utility model adopts the following technical solution: comprising a drying kettle body, the drying kettle body is used to dry the acetic anhydride residue;
[0006] A feed pipe, which can control whether the interior of the drying kettle body is connected to the outside world;
[0007] A conveying component is arranged on the feed pipe and is used for sealingly conveying the acetic anhydride residue entering the feed pipe.
[0008] Furthermore, the conveying assembly includes a motor fixedly connected to the upper end of the drying kettle body and a spiral blade member rotatably connected to the inside of the feed pipe, and the output end of the motor is connected to one end of the spiral blade member.
[0009] Furthermore, the conveying assembly includes a telescopic rod fixedly connected to the drying kettle body, one end of the telescopic rod extends into the inside of the feed pipe and is fixedly connected to a push block, and the push block is sealingly and slidably connected to the feed pipe.
[0010] Furthermore, the conveying assembly includes a feeding bin arranged on the feeding pipe and a rotating plate rotatably connected to the inside of the feeding bin. A motor is installed on the upper end of the sealed drying kettle body, and the output end of the motor is connected to the rotating plate.
[0011] Furthermore, the conveying assembly includes a sliding bin arranged on the feed pipe, a gate plate slidingly connected inside the sliding bin to isolate the feed pipe, a telescopic rod is installed on the sliding bin, and a movable end of the telescopic rod is connected to the gate plate.
[0012] Furthermore, a one-way valve is provided on the feed pipe.
[0013] Furthermore, the drying kettle body is provided with a controller for controlling the operation of the conveying component.
[0014] At least one of the above technical solutions adopted in the embodiment of the present utility model can achieve the following beneficial effects:
[0015] In the utility model, a feeding assembly is provided on the feed pipe on the drying kettle body, and the feeding assembly controls whether the acetic anhydride residue can be transported in the feed pipe, thereby causing the acetic anhydride residue inside the feed pipe to accumulate first. Then, under the control of the controller to operate the feeding assembly, the acetic anhydride residue that has accumulated for a period of time is moved to the output end position of the feed pipe and then falls into the drying kettle body. In this process, the gap between the acetic anhydride residue and the feed pipe is reduced, thereby reducing the heat reduction inside the drying kettle and reducing the influence on the drying treatment of the acetic anhydride residue, making the drying kettle body more conducive to the continuous drying treatment operation of the acetic anhydride residue. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
[0017] Figure 1 This is a schematic structural diagram of the first embodiment of the conveying assembly of the present utility model;
[0018] Figure 2For the utility model Figure 1 Schematic diagram of the isometric section of the middle structure;
[0019] Figure 3 This is a structural schematic diagram of a second embodiment of the conveying assembly of the present utility model;
[0020] Figure 4 For the utility model Figure 3 Schematic diagram of the isometric section of the middle structure;
[0021] Figure 5 This is a schematic structural diagram of a third embodiment of the conveying assembly of the present utility model;
[0022] Figure 6 For the utility model Figure 5 Schematic diagram of the isometric section of the middle structure;
[0023] Figure 7 This is a schematic structural diagram of a fourth embodiment of the conveying assembly of the present utility model;
[0024] Figure 8 For the utility model Figure 7 Schematic diagram of the isometric section of the central structure.
[0025] Reference numerals:
[0026] Drying kettle body 1, feed pipe 2, motor 3, spiral blade part 4, telescopic rod 5, push block 6, feeding bin 7, rotating plate part 8, sliding bin 9, gate 10, one-way valve 11, controller 12. DETAILED DESCRIPTION
[0027] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.
[0028] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0029] The embodiment of the utility model provides an acetic anhydride residue drying kettle which is easy to operate continuously, comprising:
[0030] The drying kettle body 1 is used to dry the acetic anhydride residue. The drying kettle body 1 is provided with a controller 12 for controlling the operation of the conveying component;
[0031] The feed pipe 2 connects the interior of the drying kettle body 1 with the outside world. A one-way valve 11 is provided on the feed pipe 2. The one-way valve 11 is arranged at the output end of the feed pipe 2. The one-way valve 11 moves toward the interior of the drying kettle body 1. The purpose is to prevent the heat inside the drying kettle body 1 from flowing along the output end of the feed pipe 2 toward the input end when the feed pipe 2 is not conveying acetic anhydride residue.
[0032] The conveying component is arranged on the feed pipe 2 and is used to carry out closed conveying of the acetic anhydride residue entering the feed pipe 2. When the acetic anhydride residue enters the feed pipe 2, it will first accumulate in front of the conveying component due to the obstruction of the conveying component. Then the conveying component is operated, and the conveying component will convey the accumulated acetic anhydride residue into the interior of the drying kettle body 1. At this time, because the acetic anhydride residue is accumulated together, the gap between the acetic anhydride residue and the inner wall of the feed pipe 2 will become smaller, and the overall density of the acetic anhydride residue will increase, so that when the acetic anhydride residue is conveyed from the feed pipe 2 to the interior of the drying kettle body 1, the heat inside the drying kettle will not flow out through the gap between the acetic anhydride residue and the feed pipe 2. With the cooperation of the conveying component structure, the sealed conveying of the acetic anhydride residue is achieved.
[0033] like Figure 1-2 As shown, the first embodiment of the conveying assembly of the present invention is that the conveying assembly includes a motor 3 fixedly connected to the upper end of the drying kettle body 1 and a spiral blade member 4 rotatably connected to the inside of the feed pipe 2, the output end of the motor 3 is connected to one end of the spiral blade member 4, when the feed pipe 2 receives external acetic anhydride residue, the acetic anhydride residue enters from the input end of the feed pipe 2, and then accumulates on the spiral blade member 4, and then the controller 12 controls the motor 3 to start, thereby driving the spiral blade member 4 to rotate, and while it rotates, it continuously pushes the acetic anhydride residue located on the spiral blade member 4. The acetic anhydride residue above the sheet member 4 is transported from the input end position of the feed pipe 2 to the output end position. When transported to the position of the one-way valve 11, as the acetic anhydride residue continues to increase, the acetic anhydride residue will squeeze the one-way valve 11 and fall into the interior of the drying kettle body 1. When the spiral blade member 4 is used to transport the acetic anhydride residue, the heat dissipation caused by the acetic anhydride residue directly entering the interior of the drying kettle through the feed pipe 2 is avoided. In addition, when transporting the acetic anhydride residue, the spiral blade member 4 will reduce the heat flowing from the interior of the drying kettle body 1 through the feed pipe 2 to the outside.
[0034] like Figure 3-4As shown, the second embodiment of the conveying assembly of the present invention is that the conveying assembly includes a telescopic rod 5 fixedly connected to the drying kettle body 1, one end of the telescopic rod 5 extends to the inside of the feed pipe 2 and is fixedly connected to a push block 6, and the push block 6 is sealed and slidably connected to the feed pipe 2. When the acetic anhydride residue in the feed pipe 2 is conveyed, the acetic anhydride residue is first accumulated above the push block 6. After accumulating for a certain period of time, the telescopic rod 5 is started by the controller 12, and the push block 6 moves toward the inside of the drying kettle body 1 under the drive of the telescopic rod 5. When the push block 6 moves, the push block 6 is located at the push block 6. The acetic anhydride residue accumulated above 6 will move along with it. When the push block 6 pushes open the one-way valve 11, the upper part of the push block 6 is no longer blocked by the inner wall of the feed pipe 2. The acetic anhydride residue above the push block 6 will slide down the slopes on both sides of the push block 6 into the interior of the drying kettle body 1. After staying for a period of time, the push block 6 will move in the direction it came from. When the push block 6 moves to the initial position, it will stay for a period of time under the control of the controller 12 to control the telescopic rod 5, and then repeat the above steps. This cycle is repeated to transport the acetic anhydride residue in the feed pipe 2.
[0035] When the pushing block 6 transports the acetic anhydride residue, the acetic anhydride residue will first accumulate above the pushing block 6. When the acetic anhydride residue accumulates, the gap between the acetic anhydride residue as a whole and the inner wall of the feed pipe 2 will gradually decrease under the action of mutual squeezing, thereby causing the acetic anhydride residue to be in a relatively crowded state when falling into the drying kettle body 1. As a result, when the acetic anhydride residue falls into the drying kettle body 1, the heat inside the drying kettle body 1 will not easily flow from the output end position of the feed pipe 2 to its input end position, thereby reducing the heat loss inside the drying kettle body 1 and being more conducive to the continuous operation of the acetic anhydride residue drying process.
[0036] like Figure 5-6As shown, the third embodiment of the conveying assembly of the present invention is that the conveying assembly includes a feeding bin 7 arranged on the feeding pipe 2 and a rotating plate 8 rotatably connected to the inside of the feeding bin 7, and there are several rotating plates 8, and the several rotating plates 8 divide the feeding bin 7 into several chambers, and except for some chambers that are connected with the feeding pipe 2, the other chambers are in a closed state, and a motor 3 is installed on the upper end of the sealed drying kettle body 1, and the output end of the motor 3 is connected to the rotating plate 8. When the feeding pipe 2 is in use, the acetic anhydride residue is first accumulated at the connection between the input end of the feeding bin 7 and the feeding pipe 2, and then Then, the controller 12 is used to start the motor 3, and the motor 3 drives the rotating plate 8 to rotate. When the rotating member rotates, its cavity is connected with the feed pipe 2, and the acetic anhydride residue accumulated in the feed pipe 2 is carried and transported. When it rotates to the output end of the feeding bin 7, the acetic anhydride residue in the cavity will fall back into the feed pipe 2, and then fall into the interior of the drying kettle body 1 along the feed pipe 2. Compared with the first embodiment of the conveying component, the sealing performance of the acetic anhydride residue when conveying is better, and even without the use of the one-way valve 11, it still has a good sealing and conveying function.
[0037] like Figure 7-8 As shown, the fourth embodiment of the conveying assembly of the present invention is that the conveying assembly includes a sliding bin 9 arranged on the feed pipe 2, a gate 10 that is slidably connected in the sliding bin 9 to isolate the feed pipe 2, a telescopic rod 5 is installed on the sliding bin 9, and the movable end of the telescopic rod 5 is connected to the gate 10. At this time, the one-way valve 11 located at the output end of the feed pipe 2 can be in an open state, the purpose of which is to make the acetic anhydride residue fall into the interior of the drying kettle body 1 more quickly. When the feed pipe 2 receives the acetic anhydride residue, it will first accumulate on the closed gate 10, and then the controller 12 is used to control the operation of the telescopic rod 5. The telescopic rod 5 with the gate 10 moves away from the axial direction of the feed pipe 2. During the movement, the feed pipe 2 outputs The end and the input end are gradually connected, and at the same time, the acetic anhydride residue will fall into the interior of the drying kettle body 1 through the connected feed pipe 2. After the accumulated acetic anhydride residue has fallen for a period of time, the telescopic rod 5 will drive the gate plate 10 to return to its initial position. At this time, the acetic anhydride residue will stop being transported to the interior of the drying kettle body 1, and will be re-accumulated above the gate plate 10, waiting for the next connection of the feed pipe 2. Then, under the setting of the controller 12, the above steps will be repeated. Compared with the first three implementation methods of the conveying component, this implementation method has better sealing performance, reduces the heat loss inside the drying kettle body 1 to a greater extent, and is conducive to the continuous operation of the acetic anhydride residue drying process.
[0038] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.
Claims
1. An acetic anhydride residue drying kettle which is easy to operate continuously, characterized in that: include; A drying kettle body (1), wherein the drying kettle body (1) is used for drying acetic anhydride residue; A feed pipe (2), wherein the feed pipe (2) can control whether the interior of the drying kettle body (1) is connected to the outside world; A conveying assembly, the conveying assembly being arranged on the feed pipe (2) and being used for carrying out closed conveying of the acetic anhydride residue entering the feed pipe (2); The conveying assembly comprises a telescopic rod (5) fixedly connected to the drying kettle body (1), one end of the telescopic rod (5) extends into the interior of the feed pipe (2) and is fixedly connected to a push block (6), and the push block (6) is sealingly slidably connected to the feed pipe (2).