Methyl ethyl ketone dry column reflux tank

Abstract

The utility model discloses a methyl ethyl ketone drying tank backflow tank relates to backflow tank technical field, the utility model discloses a motor drives connecting axle, connecting sleeve and rotary rod rotation, and the rotary rod rotates and will drive support rod and scraper rotation, and the scraper rotation will scrape the impurity that the tank body bottom deposits ceaselessly, and this solves the problem that the impurity deposits, and simultaneously, support rod rotates, and will drive a plurality of stirring vane rotation, and this is fully stirred to the backflow liquid in the tank body, and further avoids the impurity deposition phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of reflux tank technology, specifically to a reflux tank for a methyl ethyl ketone (MEK) drying tower. Background Technology

[0002] A container used in a fixed location for the primary purpose of storing media, while also serving purposes such as buffering, metering, mixing, and separation, is called a storage tank. A reflux tank is not a storage tank. A reflux tank is used in the operation of a methyl ethyl ketone (MEK) drying tower. The gaseous material that has been evaporated by steam is received at the top of the tower, condensed by the heat exchanger at the top of the tower, and then enters the reflux tank.

[0003] Chinese utility model patent CN220090608U discloses a reflux tank for a methyl ethyl ketone (MEK) drying tower, comprising a tank body and a dual-shaft motor. An input pipe is fixedly connected to the outer side of the tank body, and a filter plate is disposed inside the input pipe. A limiting plate is fixedly connected to the outer side of the tank body, with a rotating ring at the top of the limiting plate and a guide rail adapted to the limiting plate at the bottom. A gear is fixedly connected to one end of the dual-shaft motor, and multiple gear teeth meshing with the gear are fixedly connected to the outer side of the rotating ring. In this patent, the dual-shaft motor drives the gear to rotate, which in turn drives the rotating ring, connecting rod, and rotating rod to rotate via multiple gear teeth. The rotating rod, through a positioning rod, drives multiple cleaning rods to rotate, cleaning the surface of the filter plate to prevent clogging and performing preliminary filtration of impurities, thus reducing the amount of impurities in the reflux liquid.

[0004] However, in practical applications, the structural design of the aforementioned reflux tank cannot adequately agitate the reflux liquid, resulting in the continued precipitation of impurities. Furthermore, the mechanical components within the reflux tank are difficult to replace or maintain. Methyl ethyl ketone (MEK), as a strong solvent, is corrosive; when these mechanical components are used for extended periods without maintenance, they are easily corroded by the MEK reflux liquid, affecting their agitation effect. Therefore, this design presents certain limitations. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a reflux tank for a methyl ethyl ketone (MEK) drying tower. By starting a motor, the connecting shaft, connecting sleeve and rotating rod are driven to rotate. When the rotating rod rotates, it drives the support rod and scraper to rotate. The rotating scraper continuously scrapes up the impurities settled at the bottom of the tank, thereby solving the problem of impurity sedimentation. At the same time, when the support rod rotates, it drives several stirring blades to rotate, thereby fully stirring the reflux liquid in the tank and further avoiding the phenomenon of impurity sedimentation.

[0006] The technical solution of this utility model is as follows: The reflux tank of the methyl ethyl ketone (MEK) drying tower includes a tank body with an inlet pipe at the top and an outlet pipe at the bottom. A filter plate is installed inside the inlet pipe. One end of the tank body is open and detachably connected to a tank cover. A rotating rod is horizontally installed inside the tank body, passing through the tank cover and extending into the tank body. The rotating rod is driven by a motor. Several support rods are vertically installed on the rotating rod. A scraper is installed at the end of the support rod away from the rotating rod, and the scraper contacts the inner wall of the tank body. Several stirring blades are installed on the support rod. An anti-clogging component is installed above the filter plate to prevent the filter plate from clogging.

[0007] Preferably, the motor is installed at the center of the can lid, and the output end of the motor is connected to a connecting shaft. The connecting shaft is rotatably connected to the can lid and is detachably connected to the rotating rod through a connecting sleeve.

[0008] Preferably, the anti-clogging component includes a rotating shaft disposed inside the inlet pipe and located above the filter plate. The rotating shaft is driven to rotate by a linkage component. A mounting rod is connected to the bottom of the rotating shaft, and a plurality of anti-clogging rods adapted to the filter plate are provided at the bottom of the mounting rod.

[0009] Preferably, a first bevel gear is provided at the top of the rotating shaft, and the linkage assembly includes a support frame provided at the top of the tank, a linkage rod is horizontally rotatably connected inside the support frame, a second bevel gear is provided at one end of the linkage rod and meshes with the first bevel gear, a first pulley is provided at the other end, a second pulley is provided on the connecting shaft, and a transmission belt is connected between the first pulley and the second pulley.

[0010] Preferably, a protective box is provided on the inner wall of the liquid inlet pipe above the filter plate, and the top of the rotating shaft and one end of the linkage rod both extend into the protective box.

[0011] Preferably, the connecting shaft is rotatably connected to the can lid via a sealed bearing.

[0012] Preferably, the tank body is provided with a fixing ring that matches the tank cover, and a plurality of fastening bolts arranged in a circular array are passed between the tank cover and the fixing ring. The tank cover is detachably connected to the tank body through the cooperation of the fixing ring and the fastening bolts.

[0013] Preferably, a sealing ring adapted to the open end of the can body is provided on the inner side of the can lid.

[0014] Preferably, a support socket adapted to the rotating rod is provided at the center of the inner side wall of the tank, and one end of the rotating rod is movably inserted into the support socket.

[0015] Compared with the prior art, this utility model has the following advantages: 1. This utility model utilizes the combined use of a motor, connecting shaft, connecting sleeve, rotating rod, support rod, scraper, and stirring blades. When stirring the reflux liquid in the tank, starting the motor drives the connecting shaft, connecting sleeve, and rotating rod to rotate. The rotation of the rotating rod drives the support rod and scraper to rotate. The rotating scraper continuously scrapes up the impurities settled at the bottom of the tank, thus solving the problem of impurity sedimentation. At the same time, when the support rod rotates, it drives several stirring blades to rotate, thereby fully stirring the reflux liquid in the tank and further preventing impurity sedimentation.

[0016] 2. This utility model utilizes a detachable tank lid and connecting sleeve. After shutdown, the tank lid can be removed, allowing the rotating rod, support rod, scraper, and stirring blades inside the tank to be taken out for maintenance. This removes methyl ethyl ketone (MEK) residue adhering to the surfaces of the rotating rod, support rod, scraper, and stirring blades, preventing long-term contact with MEK reflux liquid that could cause material swelling or chemical corrosion. Then, the connections between the components are inspected for cracks and aging, facilitating replacement as needed. The rotating rod and connecting sleeve are detachable; during replacement, the rotating rod can be directly removed from the connecting sleeve to replace the rotating rod, support rod, scraper, and stirring blades. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the reflux tank of the methyl ethyl ketone drying tower of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the reflux tank of the methyl ethyl ketone drying tower of this utility model.

[0019] Figure 3 yes Figure 2 A magnified view of a portion at point A.

[0020] Figure 4 yes Figure 2 A magnified view of a section at point B.

[0021] In the diagram, 1. Tank body; 2. Tank cover; 3. Inlet pipe; 4. Outlet pipe; 5. Motor; 6. Connecting shaft; 7. Rotating rod; 8. Support rod; 9. Scraper; 10. Stirring blade; 11. Anti-clogging component; 1101. Protective box; 1102. Rotating shaft; 1103. First bevel gear; 1104. Mounting rod; 1105. Anti-clogging rod; 12. Linkage component; 1201. Support frame; 1202. Linkage rod; 1203. Second bevel gear; 1204. First pulley; 1205. Second pulley; 1206. Transmission belt; 13. Fixing ring; 14. Fastening bolt; 15. Sealing ring; 16. Sealing bearing; 17. Support socket. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model.

[0023] Example 1 like Figure 1-3 As shown, this embodiment provides a reflux tank for a methyl ethyl ketone (MEK) drying tower, including a tank body 1. An inlet pipe 3 is connected to the top of the tank body 1, and an outlet pipe 4 is connected to the bottom. A filter plate is installed inside the inlet pipe 3, and an anti-clogging component 11 is installed above the filter plate to prevent clogging. One end of the tank body 1 is open and detachably connected to a tank cover 2. A sealing ring 15, adapted to the open end of the tank body 1, is provided inside the tank cover 2. Specifically, the detachable connection of the tank cover 2 to the tank body 1 is as follows: Figure 1 As shown, a retaining ring 13 adapted to the tank cover 2 is fixedly installed on the outside of the tank body 1. Several fastening bolts 14 arranged in a circular array pass through the tank cover 2 and the retaining ring 13. The tank cover 2 is detachably connected to the tank body 1 through the cooperation of the retaining ring 13 and the fastening bolts 14. When it is necessary to remove the tank cover 2 to maintain or replace the components inside the tank body 1, it is only necessary to remove the fastening bolts 14 to remove the tank cover 2 from the open end of the tank body 1.

[0024] like Figure 1-4 As shown, a rotating rod 7 is horizontally arranged inside the tank body 1. The rotating rod 7 passes through the tank cover 2 and extends into the tank body 1. A support socket 17 adapted to the rotating rod 7 is provided at the center of the inner side wall of the tank body 1. One end of the rotating rod 7 is movably inserted into the support socket 17. A motor 5 is installed at the center of the outer side of the tank cover 2. The output end of the motor 5 is connected to a connecting shaft 6. The connecting shaft 6 is rotatably connected to the tank cover 2 through a sealed bearing 16 and is detachably connected to the rotating rod 7 through a connecting sleeve. Several support rods 8 are vertically fixedly connected to the rotating rod 7. A scraper 9 is fixedly connected to the end of the support rods 8 away from the rotating rod 7. The scraper 9 contacts the inner wall of the tank body 1. Several stirring blades 10 are fixedly connected to the support rods 8.

[0025] In this embodiment, a sealing ring 15 is provided to seal the gap between the can lid 2 and the open end of the can body 1. A sealing bearing 16 is provided to seal the rotatable connection between the connecting shaft 6 and the can lid 2 without affecting the rotation of the connecting shaft 6. By setting the above structure, leakage of backflow liquid in the can body 1 can be avoided. In addition, the support socket 17 is provided to support one end of the rotating rod 7, making the rotating rod 7 more stable when rotating. Because the rotating rod 7 is a round rod, it can rotate within the support socket 17 while being inserted into it.

[0026] Working principle: In this embodiment, the motor 5, connecting shaft 6, connecting sleeve, rotating rod 7, support rod 8, scraper 9, and stirring blade 10 work together to stir the reflux liquid in tank 1. Starting the motor 5 drives the connecting shaft 6, connecting sleeve, and rotating rod 7 to rotate. The rotation of the rotating rod 7 drives the support rod 8 and scraper 9 to rotate. The rotating scraper 9 continuously scrapes up the impurities settled at the bottom of tank 1, thus solving the problem of impurity sedimentation. Simultaneously, the rotation of the support rod 8 drives the stirring blade 10 to rotate, thereby fully stirring the reflux liquid in tank 1 and further preventing impurity sedimentation.

[0027] In addition, this embodiment utilizes the detachable tank cover 2 in conjunction with the connecting sleeve. After shutdown, the tank cover 2 can be removed, and the rotating rod 7, support rod 8, scraper 9, and stirring blade 10 inside the tank body 1 can be taken out for maintenance or replacement. This removes methyl ethyl ketone (MEK) residue adhering to the surfaces of the rotating rod 7, support rod 8, scraper 9, and stirring blade 10, preventing long-term contact with MEK reflux liquid that could cause material swelling or chemical corrosion. Then, check whether the connections between the above components are cracked or whether the components are aged, so that replacement can be made according to the actual situation. The rotating rod 7 and the connecting sleeve are detachable; during replacement, the rotating rod 7 can be directly removed from the connecting sleeve, allowing for the simultaneous replacement of the rotating rod 7, support rod 8, scraper 9, and stirring blade 10.

[0028] Example 2 Based on Example 1, such as Figure 3 As shown, the anti-clogging component 11 specifically includes a protective box 1101 fixedly installed on the inner wall of the inlet pipe 3 and located above the filter plate. A rotating shaft 1102 is rotatably connected to the bottom of the protective box 1101. The top of the rotating shaft 1102 extends into the protective box 1101 and is driven to rotate by the linkage component 12. A mounting rod 1104 is connected to the bottom of the rotating shaft 1102, and several anti-clogging rods 1105 adapted to the filter plate are provided at the bottom of the mounting rod 1104. A first bevel gear 1103 is fixedly connected to the top of the rotating shaft 1102. Figure 1-4 As shown, the linkage assembly 12 includes a support frame 1201 fixed to the top of the tank 1. A linkage rod 1202 is horizontally rotatably connected inside the support frame 1201. One end of the linkage rod 1202 extends into the protective box 1101 and is fixedly connected to a second bevel gear 1203 that meshes with the first bevel gear 1103. The other end is fixedly connected to a first pulley 1204. A second pulley 1205 is fixedly connected to the connecting shaft 6. A transmission belt 1206 is drivingly connected between the first pulley 1204 and the second pulley 1205.

[0029] When the motor 5 drives the connecting shaft 6 to rotate, the second pulley 1205 on the connecting shaft 6 will rotate together. Through the cooperation of the transmission belt 1206, the second pulley 1205 will rotate synchronously, thereby driving the linkage rod 1202 and the second bevel gear 1203 to rotate. The rotation of the second bevel gear 1203 will drive the first bevel gear 1103 to rotate, thereby driving the rotating shaft 1102, the mounting rod 1104 and the anti-clogging rod 1105 to rotate. The anti-clogging rod 1105 cleans the surface of the filter plate and prevents the surface of the filter plate from becoming clogged.

[0030] In addition, the protective box 1101 is used to protect the internal mechanical components and prevent the backflow fluid from affecting them. The rotating connection between the shaft 1102 and the protective box 1101 is sealed, for example with dynamic and static rings, to prevent the backflow fluid from seeping into the protective box 1101. Furthermore, the linkage rod 1202 first passes through the inlet pipe 3 and then extends into the protective box 1101. The connection between the linkage rod 1202 and the inlet pipe 3 and the protective box 1101 is a rotating connection, and all rotating connections are sealed, for example with dynamic and static rings.

Claims

1. A reflux tank for a methyl ethyl ketone (MEK) drying tower, comprising a tank body (1), an inlet pipe (3) at the top of the tank body (1), an outlet pipe (4) at the bottom, a filter plate inside the inlet pipe (3), and a tank cover (2) detachably connected to one end of the tank body (1); characterized in that, A rotating rod (7) is horizontally arranged inside the tank body (1). The rotating rod (7) passes through the tank cover (2) and extends into the tank body (1). The rotating rod (7) is driven to rotate by a motor (5). Several support rods (8) are vertically arranged on the rotating rod (7). A scraper (9) is arranged at the end of the support rod (8) away from the rotating rod (7). The scraper (9) contacts the inner wall of the tank body (1). Several stirring blades (10) are arranged on the support rods (8). An anti-clogging component (11) is arranged above the filter plate to prevent the filter plate from clogging. The motor (5) is installed on the tank cover (2). 2) At the center, the output end of the motor (5) is connected to a connecting shaft (6), which is rotatably connected to the can cover (2) and detachably connected to the rotating rod (7) through a connecting sleeve; the anti-clogging component (11) includes a rotating shaft (1102) located inside the liquid inlet pipe (3) and above the filter plate. The rotating shaft (1102) is driven to rotate by the linkage component (12). The bottom of the rotating shaft (1102) is connected to an installation rod (1104), and the bottom of the installation rod (1104) is provided with several anti-clogging rods (1105) that are adapted to the filter plate.

2. The reflux tank of the methyl ethyl ketone drying tower as described in claim 1, characterized in that, The top of the rotating shaft (1102) is provided with a first bevel gear (1103). The linkage assembly (12) includes a support frame (1201) provided on the top of the tank body (1). A linkage rod (1202) is horizontally rotatably connected inside the support frame (1201). One end of the linkage rod (1202) is provided with a second bevel gear (1203) that meshes with the first bevel gear (1103), and the other end is provided with a first pulley (1204). A second pulley (1205) is provided on the connecting shaft (6). A transmission belt (1206) is connected between the first pulley (1204) and the second pulley (1205).

3. The reflux tank of the methyl ethyl ketone drying tower as described in claim 2, characterized in that, A protective box (1101) is provided on the inner wall of the liquid inlet pipe (3) and above the filter plate. The top of the rotating shaft (1102) and one end of the linkage rod (1202) both extend into the protective box (1101).

4. The reflux tank of the methyl ethyl ketone drying tower as described in claim 1, characterized in that, The connecting shaft (6) is rotatably connected to the can lid (2) via a sealed bearing (16).

5. The reflux tank of the methyl ethyl ketone drying tower as described in claim 1, characterized in that, The tank body (1) is provided with a fixing ring (13) that is compatible with the tank cover (2). A number of fastening bolts (14) arranged in a ring array are passed between the tank cover (2) and the fixing ring (13). The tank cover (2) is detachably connected to the tank body (1) through the cooperation of the fixing ring (13) and the fastening bolts (14).

6. The reflux tank of the methyl ethyl ketone drying tower as described in claim 1, characterized in that, The inner side of the can lid (2) is provided with a sealing ring (15) that is compatible with the open end of the can body (1).

7. The reflux tank of the methyl ethyl ketone drying tower as described in claim 1, characterized in that, The inner wall of the tank (1) is provided with a support socket (17) that is compatible with the rotating rod (7), and one end of the rotating rod (7) is movably inserted into the support socket (17).

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