Anti-settling device for a binder production

Abstract

The utility model discloses a kind of anti-solidification devices of binder production, it is related to binder production technical field, including base, the top of base is fixedly installed with support frame, the rear side of base is fixedly installed with suspension mechanism.The utility model adopts the above structure, the design of the stirring mechanism in the device tank body, can effectively solve the problem that traditional anti-solidification device motor maintenance is difficult, easy to circuit failure, the second motor of stirring mechanism is fixed in the top of sealing cover, not directly contacted with binder, avoid the cleaning problem caused by binder sticking, and without complex waterproof structure, reduce the risk of circuit failure, at the same time, by driving auger drive fluid to flow downward, cooperate with the reverse flow pipe to form up and down convection, solve the defect that traditional device binder flows low, easy to local solidification, improve mixing uniformity and anti-solidification effect, meet efficient production demand.

Description

Technical Field

[0001] This utility model belongs to the field of adhesive production technology, and specifically relates to an anti-coagulation device for adhesive production. Background Technology

[0002] In the production and processing of tile adhesives, anti-solidification devices are crucial equipment for ensuring product quality. They continuously stir and mix the raw materials to prevent the tile adhesive from solidifying due to stagnation or poor flow, thus ensuring the uniformity and workability of the adhesive. However, existing anti-solidification devices have many defects and shortcomings in practical applications. Traditional devices lack convenient sampling facilities; workers must open the bottom cover to take samples. This operation results in a large amount of tile adhesive flowing out with the opening of the bottom cover, causing serious waste of raw materials. Furthermore, the sampling process is cumbersome and greatly affects work efficiency. To improve the sampling problem, certain improvements have emerged in related technical fields. For example, the anti-solidification device for tile adhesive production disclosed in Chinese Patent No. CN218871916U improves sampling convenience by incorporating an openable round cover and a retractable sampling structure.

[0003] However, the above-mentioned device still has significant limitations in practical applications: a separate motor needs to be installed at the bottom of the tank to drive the stirring, and the motor is in direct contact with the adhesive inside the tank. After long-term use, the adhesive is prone to sticking to the outer surface of the motor, making it difficult to clean and maintain. At the same time, the motor and related wires are located inside the tank, requiring a complex waterproof circuit structure. The corrosive effect of the adhesive and the humid environment will continuously affect the circuit system, which can easily cause short circuits, leakage and other faults, posing safety hazards. In addition, the tank of the device cannot be opened quickly, which is inconvenient for internal inspection and cleaning. Moreover, the adhesive cannot be quickly transferred up and down during the stirring process, making it difficult for the adhesive to form an efficient flow state. Local solidification is likely to occur, affecting the overall anti-solidification effect and making it difficult to meet the needs of industrial production. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an anti-coagulation device for adhesive production, so as to solve the problems raised in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An anti-coagulation device for adhesive production includes a base, a support frame fixedly installed on the top of the base, a lifting mechanism fixedly installed on the rear side of the base, a removable cover fixedly installed on the bottom of the lifting mechanism, a stirring mechanism fixedly installed in the middle of the removable cover, a tank fixedly installed in the middle of the support frame, the removable cover covering the top of the tank, a discharge valve fixedly connected to the lower front end of the bottom of the tank, a discharge pipe fixedly installed at the output end of the discharge valve, and the main body of the stirring mechanism extending into the interior of the tank.

[0007] The detachable cover includes a sealing cover that covers the top of the tank. A feeding valve is fixedly installed on the front top of the sealing cover. A feeding hopper is fixedly installed on the top of the feeding valve. The output end of the feeding valve passes through the detachable cover and is connected to the inside of the tank.

[0008] As a preferred technical solution, both ends of the sealing cover are fixedly installed with fixing plates, and both upper ends of the tank body are fixedly installed with mounting seats. The fixing plates are inserted into the mounting seats, and the lower end of the fixing plates is threadedly connected with mounting screws. The end of the mounting screws passes through the fixing plates and is threadedly connected to the tank body.

[0009] As a preferred technical solution, the mounting base has a mounting hole inside, and the end of the mounting screw is inserted into the mounting hole. The mounting screw is a hand-tightening screw.

[0010] As a preferred technical solution, the lifting mechanism includes a lifting arm, which is fixedly installed at the middle of the top rear side of the base. A lifting plate is fixedly installed at the upper end of the lifting arm, and a winding assembly is fixedly installed at the front end of the lifting plate. The bottom of the winding assembly is fixedly connected to the top of the sealing cover.

[0011] As a preferred technical solution, the winding assembly includes a square frame, which is fixedly installed at the front end of the hanging plate. A first motor is fixedly installed on one side of the square frame. A winding roller is rotatably connected inside the square frame. A lifting rope is wound around the outer surface of the winding roller. A fixing arm is fixedly installed at the bottom of the lifting rope. The bottom of the fixing arm is fixedly connected to the top of the sealing cover.

[0012] As a preferred technical solution, the top rear ends of the support frame are fixedly installed with support guide rods, and the back ends of the sealing cover are fixedly installed with guide sleeves, which are slidably connected to the outer surface of the support guide rods.

[0013] As a preferred technical solution, the stirring mechanism includes a second motor and a reflux pipe. The second motor is fixedly installed in the middle of the top of the sealing cover. The output end of the second motor is fixedly installed with a rotating shaft through the sealing cover. Stirring plates are fixedly installed at equal intervals on the outer surface of the rotating shaft. A drive auger is fixedly installed at the lower end of the rotating shaft. The reflux pipe is fixedly installed on the back of the tank. A reflux valve is provided at the input end of the reflux pipe. The input end of the reflux pipe is connected to the bottom of the tank. The top of the reflux pipe is connected to the top of the tank.

[0014] In summary, the present invention has the following main advantages:

[0015] First, the design of the internal stirring mechanism of this device can effectively solve the problems of difficult motor maintenance and easy circuit failure in traditional anti-coagulation devices. The second motor of the stirring mechanism is fixed on the top of the sealing cover and does not come into direct contact with the adhesive, thus avoiding the cleaning problems caused by adhesive adhesion. It also eliminates the need for complex waterproof structures, reducing the risk of circuit failure. At the same time, the fluid is driven downward by the auger, which, together with the counterflow pipe, forms an upward and downward convection, solving the defects of low adhesive flow efficiency and easy local coagulation in traditional devices. This improves the mixing uniformity and anti-coagulation effect, meeting the needs of high-efficiency production.

[0016] Secondly, this device optimizes the sampling and discharge operations, solving the problems of cumbersome sampling and material waste in traditional devices. The setting of the discharge valve and discharge pipe, combined with the operation of closing the backflow valve during sampling, can accurately control the sampling amount and avoid a large amount of material loss. After production is completed, closing the backflow valve before discharge can concentrate the fluid pressure and improve the discharge efficiency. In addition, the detachable cover can be quickly raised and lowered through the lifting mechanism, and the quick disassembly and assembly with the installation screw solves the problems of difficult tank opening and inconvenient cleaning and maintenance, greatly improving the ease of operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a bottom view structural diagram of this utility model;

[0019] Figure 3 This is a front view structural diagram of the detachable cover of this utility model in its disassembled state;

[0020] Figure 4 This is a schematic diagram of the detachable cover of this utility model in a disassembled state.

[0021] Reference numerals: 1. Base; 2. Support frame; 3. Lifting mechanism; 31. Lifting arm; 32. Lifting plate; 33. Winding assembly; 331. Square frame; 332. First motor; 333. Winding roller; 334. Lifting rope; 335. Fixed arm; 34. Supporting guide rod; 35. Guide sleeve; 4. Removable cover; 41. Sealing cover; 42. Feeding valve; 43. Feeding hopper; 44. Fixing plate; 45. Mounting base; 46. Mounting screw; 47. Mounting hole; 5. Tank body; 6. Stirring mechanism; 61. Second motor; 62. Backflow pipe; 63. Rotating shaft; 64. Stirring plate; 65. Drive auger; 66. Backflow valve; 7. Discharge valve; 8. Discharge pipe. Detailed Implementation

[0022] Example

[0023] refer to Figures 1 to 4 This embodiment of an anti-coagulation device for adhesive production includes a base 1, a support frame 2 fixedly installed on the top of the base 1, a lifting mechanism 3 fixedly installed on the rear side of the base 1, a detachable cover 4 fixedly installed on the bottom of the lifting mechanism 3, a stirring mechanism 6 fixedly installed in the middle of the detachable cover 4, a tank 5 fixedly installed in the middle of the support frame 2, the detachable cover 4 covering the top of the tank 5, a discharge valve 7 fixedly connected to the lower front end of the bottom of the tank 5, a discharge pipe 8 fixedly installed at the output end of the discharge valve 7, and the main body of the stirring mechanism 6 extending into the interior of the tank 5.

[0024] The removable cover 4 includes a sealing cover 41, which covers the top of the tank 5. A feeding valve 42 is fixedly installed on the front top of the sealing cover 41, and a feeding hopper 43 is fixedly installed on the top of the feeding valve 42. The output end of the feeding valve 42 passes through the removable cover 4 and is connected to the inside of the tank 5. During the application of this device, its base 1 is fixed to the tank 5 by the top support frame 2, providing a stable foundation for the entire device. The lifting mechanism 3 on the rear side of the base 1 is used to suspend and control the lifting and lowering of the removable cover 4, so that the removable cover 4 can accurately cover or detach from the top of the tank 5, realizing the sealing and opening of the tank 5. The sealing cover 41 of the removable cover 4 covers the top of the tank 5. The top feeding valve 42 and feeding hopper 43 work together to control the timing and amount of raw materials entering the tank 5, and the feeding valve 42 prevents the binder from splashing out during the stirring process. The main body of the stirring mechanism 6 extends into the tank 5 to stir and mix the binder in the tank 5 to prevent it from solidifying. The tank 5 serves as the container for the binder. The bottom discharge valve 7 and discharge pipe 8 work together to control the discharge of the binder and meet the needs of sampling and production discharge. Through the synergistic effect of the various structures, the entire system realizes a series of operations such as raw material addition, stirring to prevent solidification, sealing and storage and discharge in the binder production process, ensuring the orderly progress of production.

[0025] refer to Figures 3-4 The stirring mechanism 6 includes a second motor 61 and a backflow pipe 62. The second motor 61 is fixedly installed in the middle of the top of the sealing cover 41. The output end of the second motor 61 passes through the sealing cover 41 and is fixedly installed with a rotating shaft 63. Stirring plates 64 are fixedly installed at equal intervals on the outer surface of the rotating shaft 63. A drive auger 65 is fixedly installed at the lower end of the rotating shaft 63. The backflow pipe 62 is fixedly installed on the back of the tank 5. A backflow valve 66 is provided at the input end of the backflow pipe 62. The input end of the backflow pipe 62 is connected to the bottom of the tank 5, and the top of the backflow pipe 62 is connected to the top of the tank 5. During the application of this device, the second motor 61 is fixed to the top of the sealing cover 41, and its output end drives the rotating shaft 63 passing through the sealing cover 41 to rotate. The stirring plates 64 on the outer surface of the rotating shaft 63 rotate synchronously with the rotating shaft 63, thus stirring the adhesive in the tank 5. The mixing process involves horizontal stirring. Simultaneously, the drive auger 65 at the lower end of the rotating shaft 63 rotates, driving the binder in the tank 5 to flow downwards. When the backflow valve 66 at the input end of the backflow pipe 62 is opened, the downward-flowing binder enters the backflow pipe 62 through the backflow valve 66, flowing from the bottom to the top of the tank 5 through the backflow pipe 62, forming vertical convection. Specifically, the horizontal stirring of the stirring plate 64 ensures uniform mixing of the raw materials, and the vertical convection formed by the drive auger 65 and the backflow pipe 62 enables the binder to flow efficiently in the tank 5, avoiding local solidification. The backflow valve 66 controls the opening and closing of the backflow pipe 62, opening during stirring to enhance the convection effect and closing during discharge or sampling to ensure concentrated discharge of materials. The second motor 61 provides power for the entire stirring process. The overall structure improves the mixing efficiency and anti-solidification effect of the binder.

[0026] refer to Figures 1-2The lifting mechanism 3 includes a lifting arm 31, which is fixedly installed at the middle of the rear top of the base 1. A lifting plate 32 is fixedly installed at the upper end of the lifting arm 31, and a winding assembly 33 is fixedly installed at the front end of the lifting plate 32. The bottom of the winding assembly 33 is fixedly connected to the top of the sealing cover 41. The winding assembly 33 includes a square frame 331, which is fixedly installed at the front end of the lifting plate 32. A first motor 332 is fixedly installed on one side of the square frame 331. An internal rotating winding roller 333 is connected to the device. A lifting rope 334 is wound around the outer surface of the winding roller 333. A fixing arm 335 is fixedly installed at the bottom of the lifting rope 334. The bottom of the fixing arm 335 is fixedly connected to the top of the sealing cover 41. Supporting guide rods 34 are fixedly installed at both ends of the top rear side of the support frame 2. Guide sleeves 35 are fixedly installed at both ends of the back side of the sealing cover 41. The guide sleeves 35 are slidably connected to the outer surface of the supporting guide rods 34. During the application of this device, the lifting mechanism 3 operates... The operating principle is as follows: the lifting arm 31 is fixed to the rear side of the base 1, and the upper end of the lifting plate 32 supports the winding assembly 33. The first motor 332 of the winding assembly 33 drives the winding roller 333 inside the square frame 331 to rotate, so that the lifting rope 334 is wound or released, and then the sealing cover 41 is raised and lowered through the fixed arm 335. At the same time, the guide sleeve 35 on the back of the sealing cover 41 slides along the support guide rod 34 at the top of the support frame 2 to ensure that the lifting process is smooth. Specifically, the lifting arm 31 and the lifting plate 32 provide stable support for the winding assembly 33. The winding assembly 33 realizes the winding and releasing of the lifting rope 334 through the motor drive, thereby controlling the rise and fall of the sealing cover 41 to meet the opening and closing needs of the tank 5. The cooperation between the guide sleeve 35 and the support guide rod 34 restricts the movement trajectory of the sealing cover 41, prevents it from deviating during lifting, and ensures that the sealing cover 41 can accurately cover the top of the tank 5. It provides power and guidance for the flexible operation of the detachable cover 4, and improves the automation level and operational safety of the device.

[0027] refer to Figures 1-4Both ends of the sealing cap 41 are fixedly mounted with fixing plates 44, and both upper sides of the tank body 5 are fixedly mounted with mounting seats 45. The fixing plates 44 are inserted into the mounting seats 45, and the lower end of the fixing plates 44 is threadedly connected with a mounting screw 46. The end of the mounting screw 46 passes through the fixing plate 44 and is threadedly connected to the tank body 5. The mounting seat 45 has a mounting hole 47 inside, and the end of the mounting screw 46 is inserted into the mounting hole 47. The mounting screw 46 is a hand-tightening screw. During the application of this device, the fixing plates 44 at both ends of the sealing cap 41 are inserted into the mounting seats 45 on both upper sides of the tank body 5 to form a preliminary position. By rotating the hand-tightening mounting screw 46, its end passes through the fixing plate 44 and is inserted into the mounting hole of the mounting seat 45. Inside 47, it is threadedly connected to the tank body 5, thereby fastening the fixing plate 44 and the mounting base 45, and fixing the sealing cover 41 to the tank body 5. Its working principle is to use the threaded connection characteristics of the screw, and the squeezing force generated by manually tightening the mounting screw 46 enhances the tightness of the fit between the sealing cover 41 and the top of the tank body 5, and improves the overall sealing performance. Specifically, the hand-tightening screw design makes it easy for operators to operate quickly, and the installation and removal of the sealing cover 41 can be completed without additional tools. The mounting hole 47 plays a limiting role at the end of the screw, ensuring accurate and stable connection, and preventing the sealing cover 41 from shifting during stirring or movement. At the same time, it provides a structural basis for the quick opening and closing of the detachable cover 4, taking into account both sealing reliability and ease of operation.

[0028] Operating principle and advantages: During the application of this device, before use, the base 1 fixes the tank 5 through the support frame 2 to ensure the stability of the tank 5. The lifting arm 31 of the lifting mechanism 3 is fixed to the rear side of the base 1. The winding assembly 33 at the front end of the lifting plate 32 is connected to the sealing cover 41 of the detachable cover 4 through the lifting rope 334 and the fixing arm 335. The sealing cover 41 covers the top of the tank 5. The fixing plates 44 at both ends are inserted into the mounting seats 45 on both sides of the tank 5. The sealing cover 41 is fixed and sealed to the tank 5 by the hand-tightening mounting screw 46 through the fixing plate 44. The guide sleeve 35 slides along the support guide rod 34 to assist the precise positioning of the sealing cover 41.

[0029] When raw materials need to be added, the feeding valve 42 is opened, and the raw materials enter the tank 5 through the feeding hopper 43 and the feeding valve 42. After completion, the feeding valve 42 is closed, and the second motor 61 of the stirring mechanism 6 is started. Its output end drives the rotating shaft 63 to rotate, and the stirring plate 64 on the outer surface of the rotating shaft 63 rotates synchronously with the rotating shaft 63 to stir the binder in the tank 5 laterally, ensuring that the raw materials are mixed evenly. At the same time, the drive auger 65 at the lower end of the rotating shaft 63 rotates, driving the fluid in the tank 5 to flow downward. The backflow valve 66 at the input end of the backflow pipe 62 is opened, and part of the downward flowing fluid enters the backflow pipe 62 through the backflow valve 66. Through the backflow pipe 62, it flows from the bottom to the top of the tank 5, forming an upward and downward convection, so that the binder is in a state of efficient flow in the tank 5, improving the mixing effect and avoiding local solidification. If sampling is required, the backflow valve 66 is closed, and the discharge valve 7 is opened, and the binder in the tank 5 is discharged. A small amount of adhesive is discharged from pipe 8 for testing. After sampling, the discharge valve 7 is closed. After production is completed, the backflow valve 66 is closed and the discharge valve 7 is opened. The adhesive is discharged through the discharge pipe 8 to the subsequent process. When it is necessary to clean or maintain the inside of the tank 5, the mounting screw 46 is unscrewed to separate the fixing plate 44 from the mounting base 45. The first motor 332 of the winding assembly 33 is started, and its output end drives the winding roller 333 to rotate, winding the lifting rope 334. The lifting rope 334 pulls the sealing cover 41 upward through the fixing arm 335. The guide sleeve 35 slides along the support guide rod 34 to ensure that the sealing cover 41 rises smoothly and detaches from the top of the tank 5. At this time, the top of the tank 5 is completely open, which is convenient for cleaning or maintenance inside. After the operation is completed, the first motor 332 is started in reverse to release the lifting rope 334. The sealing cover 41 covers the top of the tank 5 again and is then fixed by the mounting screw 46.

[0030] During the application of this device, its base 1 has a length of 1200-1500mm, a width of 800-1000mm, and a thickness of 80-100mm; the support frame 2 has a height of 1000-1200mm and a square cross-section with sides of 100-120mm; the tank 5 has a diameter of 600-800mm, a height of 800-1000mm, and a wall thickness of 10-15mm; the sealing cover 41 has a diameter 50-80mm larger than the tank 5 and a thickness of 20-30mm; the feeding hopper 43 has a volume of 50-100L, and the feeding valve 42 has a diameter of 80-100mm; the discharge valve 7 and the discharge... The diameter of pipe 8 is 50-80mm; the height of lifting arm 31 is 1200-1500mm, and the cross-section is 80×80-100×100mm; the square frame 331 of winding assembly 33 has dimensions of 300×200×200-400×300×300mm, the diameter of lifting rope 334 is 10-15mm, and the length of fixed arm 335 is 300-400mm; the diameter of support guide rod 34 is 30-40mm, and the length is 800-1000mm; the second motor 61 of stirring mechanism 6 is a three-phase asynchronous motor of model Y2-132M-4 with a rated power of 7. The unit has a rated power of 5kW and a rated speed of 1440r / min. The shaft 63 has a diameter of 50-60mm and a length of 700-900mm. The stirring plate 64 has a length of 250-350mm, a width of 100-150mm, and a thickness of 10-15mm. The drive auger 65 has a diameter of 200-300mm and a length of 300-400mm. The reflux pipe 62 has a diameter of 100-150mm and a length adapted to the height of the tank body 5. The reflux valve 66 has the same diameter as the reflux pipe 62. The first motor 332 is a three-phase asynchronous motor of model Y2-90S-4 with a rated power of 1.1kW. The constant speed is 1400 r / min. The power supply for the electronic components is as follows: the first motor 332 and the second motor 61 are both connected to an external 380V three-phase AC power supply via wires. The backflow valve 66 and the discharge valve 7 are electric ball valves of model Q941F-16 with a rated voltage of 220V. They are connected to the controller via wires. The controller is a programmable logic controller of model PLCS7-1200, which is installed on the rear side of the top of the base 1 near the lifting arm 31. It is connected to the first motor 332, the second motor 61, the backflow valve 66 and the discharge valve 7 via wires to realize the linkage control of each component.

Claims

1. An anti-coagulation device for adhesive production, characterized in that: Includes a base (1), a support frame (2) fixedly installed on the top of the base (1), a lifting mechanism (3) fixedly installed on the rear side of the base (1), a detachable cover (4) fixedly installed on the bottom of the lifting mechanism (3), a stirring mechanism (6) fixedly installed in the middle of the detachable cover (4), a tank (5) fixedly installed in the middle of the support frame (2), the detachable cover (4) covering the top of the tank (5), a discharge valve (7) fixedly connected to the lower front side of the bottom of the tank (5), a discharge pipe (8) fixedly installed at the output end of the discharge valve (7), and the main body of the stirring mechanism (6) extending into the interior of the tank (5). The detachable cover (4) includes a sealing cover (41), which covers the top of the tank (5). A feeding valve (42) is fixedly installed on the front side of the top of the sealing cover (41). A feeding hopper (43) is fixedly installed on the top of the feeding valve (42). The output end of the feeding valve (42) passes through the detachable cover (4) and is connected to the tank (5).

2. The anti-coagulation device for adhesive production according to claim 1, characterized in that: Both ends of the sealing cap (41) are fixedly installed with fixing plates (44), and both upper ends of the tank body (5) are fixedly installed with mounting bases (45). The fixing plates (44) are inserted into the mounting bases (45). The lower end of the fixing plates (44) is threadedly connected with mounting screws (46). The end of the mounting screws (46) passes through the fixing plates (44) and is threadedly connected to the tank body (5).

3. The anti-coagulation device for adhesive production according to claim 2, characterized in that: The mounting base (45) has a mounting hole (47) inside, and the end of the mounting screw (46) is inserted into the mounting hole (47). The mounting screw (46) is a hand-tightening screw.

4. The anti-coagulation device for adhesive production according to claim 1, characterized in that: The lifting mechanism (3) includes a lifting arm (31), which is fixedly installed in the middle of the top rear side of the base (1). A lifting plate (32) is fixedly installed at the upper end of the lifting arm (31), and a winding assembly (33) is fixedly installed at the front end of the lifting plate (32). The bottom of the winding assembly (33) is fixedly connected to the top of the sealing cover (41).

5. The anti-coagulation device for adhesive production according to claim 4, characterized in that: The winding assembly (33) includes a square frame (331), which is fixedly installed at the front end of the hanging plate (32). A first motor (332) is fixedly installed on one side of the square frame (331). A winding roller (333) is rotatably connected inside the square frame (331). A lifting rope (334) is wound around the outer surface of the winding roller (333). A fixing arm (335) is fixedly installed at the bottom of the lifting rope (334). The bottom of the fixing arm (335) is fixedly connected to the top of the sealing cover (41).

6. The anti-coagulation device for adhesive production according to claim 5, characterized in that: The support frame (2) has a fixed support rod (34) at both ends of the top rear side, and the sealing cover (41) has a fixed guide sleeve (35) at both ends of the back side, and the guide sleeve (35) is slidably connected to the outer surface of the support rod (34).

7. The anti-coagulation device for adhesive production according to claim 1, characterized in that: The stirring mechanism (6) includes a second motor (61) and a reflux pipe (62). The second motor (61) is fixedly installed in the middle of the top of the sealing cover (41). The output end of the second motor (61) is fixedly installed with a rotating shaft (63) through the sealing cover (41). Stirring plates (64) are fixedly installed at equal intervals on the outer surface of the rotating shaft (63). A drive auger (65) is fixedly installed at the lower end of the rotating shaft (63). The reflux pipe (62) is fixedly installed on the back of the tank (5). A reflux valve (66) is provided at the input end of the reflux pipe (62). The input end of the reflux pipe (62) is connected to the bottom of the tank (5). The top of the reflux pipe (62) is connected to the top of the tank (5).

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