Charging bucket capable of preventing steam pollution during cleaning

Abstract

The utility model relates to the technical field of charging buckets, in particular to a charging bucket capable of preventing steam pollution during cleaning. Comprising a tank body, a lifting mechanism, a breathing cap arranged at the top of the tank body and an exhaust pipeline covering the breathing cap. The exhaust pipeline comprises a movable pipeline and a fixed pipeline, and the movable pipeline is communicated between the breathing cap and the fixed pipeline; the lifting mechanism is used for driving the movable pipeline to move so that the movable pipeline can be communicated with or disconnected from the breathing cap and the fixed pipeline. The movable pipeline can be driven to ascend and descend through ascending and descending of the lifting mechanism, so that the movable pipeline is far away from or abuts against the breathing cap and the fixed pipeline, and different use scenes of daily raw material ventilation of the charging bucket and high-temperature acid-base cleaning liquid spraying for cleaning can be rapidly and conveniently switched.

Description

Technical Field

[0001] This utility model relates to the field of material tank technology, specifically to a material tank that can prevent water vapor contamination during cleaning. Background Technology

[0002] Most existing raw material tanks are equipped with breathing caps for balancing air pressure and venting. After some raw material tanks are filled, they need to be cleaned with high-temperature alkaline / acidic solutions. This causes water vapor inside the tank to easily escape from the breathing caps, adhering to the outer wall of the tank and even the ground. This cycle repeatedly causes stains to form on the outer wall of the tank, especially when the tank is large, such as 7-8 meters high, making it difficult to clean the outer wall. It also easily causes the ground to become wet and form stains, affecting the working environment and hindering the normal passage of personnel below during the tank cleaning process.

[0003] Chinese utility model patent CN212916916U discloses a vapor-liquid discharge and suction device for an alkali tank in a CIP system, including a CIP station cleaning solution alkali preparation tank, a centrifugal pump, etc. The top of the CIP station cleaning solution alkali preparation tank is connected to a breathing exhaust pipe, the lower end of which extends into a tube-in-tube cooling heat exchanger. The lower end of the tube-in-tube cooling heat exchanger is connected to a zero-pressure discharge pipe. The zero-pressure discharge pipe is equipped with a U-shaped water trap. While this utility model's exhaust receiving device can effectively collect the steam and small amount of solution ejected from the heating cleaning agent solution, greatly reducing the amount of cleaning agent vapor in the air and thus avoiding damage to wall panels, equipment, and personnel, its exhaust pipe is too long and cannot be disassembled, making it inconvenient to meet the daily ventilation needs of the raw materials inside the tank. Furthermore, the raw material tank needs to be weighed during use, and the connected pipe can easily affect the weighing, leading to inaccurate measurement.

[0004] Chinese utility model patent CN220005170U discloses an exhaust and venting device for a cleaning tank exhaust port. The device includes an exhaust pipe connected to the exhaust port of the cleaning tank and a venting component located at the top of the exhaust pipe. The exhaust pipe is connected to the exhaust port of the cleaning tank via a clamp. The venting component includes a vent cap and a receiving tray at the bottom of the vent cap. The receiving tray has an opening at its center that communicates with the exhaust pipe. A filter screen covering the opening is installed on the receiving tray, and a drain port is provided on the receiving tray, connected to a drain pipe. Although this device is detachable and can be removed to meet the daily ventilation needs of the raw materials inside the tank, its operation is cumbersome. The clamps connecting the pipe and the tank exhaust port must be opened to remove the entire exhaust and venting device, and then the pipe and exhaust port must be reconnected via clamps for the next cleaning cycle. Utility Model Content

[0005] The present invention aims to provide a material tank that can prevent water vapor contamination during cleaning, so as to solve the problem that the existing technology is not convenient to switch between two usage scenarios: daily ventilation of the material tank and the need to discharge and collect the steam generated by the high-temperature acid and alkali cleaning solution when cleaning the material tank.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A material tank that can prevent water vapor contamination during cleaning includes a tank body, a lifting mechanism, a breather cap disposed on the top of the tank body, and an exhaust pipe covering the breather cap; the exhaust pipe includes a movable pipe and a fixed pipe, the movable pipe being connected between the breather cap and the fixed pipe; the lifting mechanism is used to drive the movable pipe to move, so that it is connected to or disconnected from the breather cap and the fixed pipe.

[0008] Beneficial effects:

[0009] 1. The exhaust pipe is divided into a movable pipe and a fixed pipe. Compared with lifting the entire exhaust pipe, the lifting mechanism only needs to lift the movable pipe, which requires less force, saves more energy, and makes the lifting more stable.

[0010] 2. The lifting mechanism can drive the movable pipeline to rise and fall, thereby keeping the movable pipeline away from or in contact with the breathing cap and fixed pipeline. It can quickly and conveniently switch between different usage scenarios, such as daily raw material ventilation in the tank and cleaning with high-temperature acid and alkali cleaning solution.

[0011] 3. By raising the movable pipeline, the impact of the exhaust pipeline on the weighing of the material tank can be reduced, making the measurement more accurate.

[0012] Preferably, as an improvement, the movable tubing is an inverted U-shaped movable bend; one end of the movable bend is used to connect with the breathing cap, and the other end is used to connect with the fixed tubing.

[0013] Beneficial effects:

[0014] 1. The movable bend adopts an inverted U-shape, and its two ends can directly contact the exhaust hood and fixed pipeline vertically, which not only facilitates the installation of the drive component below, but also saves more connecting pipelines.

[0015] 2. The movable bend adopts an inverted U-shape, with an overall arched shape. This can also prevent steam from accumulating and liquefying at the bend, which would make it difficult to clean, impossible to discharge, and affect the weighing results of the tank.

[0016] Preferably, as an improvement, the movable bend and the fixed pipe are connected by a cover or a flexible connection; when it is a cover-type contact connection, either the movable bend or the fixed pipe is provided with a flared connection cover at one end of the movable bend and the fixed pipe, and the other end is connected with an annular outer edge, with the flared connection cover covering the annular outer edge.

[0017] Beneficial effects:

[0018] 1. The method of connecting the movable bend and the fixed pipeline with the flared connecting cover and the outer edge of the ring is better than the direct connection of the two pipelines, which has a better sealing effect.

[0019] 2. The flexible connection between the movable bend and the fixed pipe is a whole, which is better than the contact butt connection of the cover. The movable bend and the fixed pipe are integrated, resulting in better sealing, tighter connection and better reduction of steam leakage.

[0020] Preferably, as an improvement, the lifting mechanism includes a support part, a mounting plate disposed on the support part, and a drive part disposed on the mounting plate for driving the lifting of the movable bend, wherein the power output end of the drive part is fixedly connected to the straight section of the movable bend.

[0021] Beneficial effects:

[0022] 1. The power output end of the drive unit is fixedly connected to the straight section of the movable bend pipe. Compared with connecting it to the bend section, the drive is more stable.

[0023] 2. Since the movable bend is inverted U-shaped, its straight section is the highest point of the movable bend, which is a certain height from the tank / ground. Therefore, the support part can make up for the height difference, making the transmission of the drive shaft to the movable bend more stable.

[0024] 3. By placing the support rod on the tank body, the length of the support rod can be minimized, thereby saving materials and improving space utilization.

[0025] 4. Placing the support rod on the ground can better reduce the impact of the exhaust pipe on the weighing of the material tank, making the measurement more accurate.

[0026] Preferably, as an improvement, the breathing cap includes a stepped exhaust hood and a connecting pipe located in the middle of the exhaust hood, the lower end of the connecting pipe communicating with the inside of the tank; the upper end of the connecting pipe extending into the exhaust hood; the end of the movable pipe is flared and can be tightly fitted against the exhaust hood.

[0027] Beneficial effects:

[0028] 1. The stepped design of the exhaust hood facilitates the tight fit between the movable pipe and the exhaust hood, serving to connect the movable pipe and the connecting pipe.

[0029] 2. The connection end of the movable pipe to the exhaust hood is flared rather than straight because the diameter of the exhaust hood is larger. If the movable pipe were directly connected to the step of the exhaust hood in a straight shape, the diameter of the movable pipe would need to be slightly smaller than the diameter of the exhaust hood, which would make the diameter of the movable pipe larger and consume more materials.

[0030] Preferably, as an improvement, one end of the connecting pipe extending into the exhaust hood is covered with an exhaust cap, and a gap is left between the exhaust cap and the top and outer wall of the connecting pipe.

[0031] Beneficial effects:

[0032] 1. The exhaust cap can provide better ventilation for raw materials after the movable pipeline is lifted. Specifically, high-temperature steam is discharged to the exhaust cap through the exhaust port, rises to the top of the exhaust cap and then sinks until it is discharged through the gap between the exhaust cap and the outer wall of the connecting pipe. It can meet the ventilation needs of tanks containing high-temperature raw materials, which cause unstable air pressure.

[0033] 2. Installing an exhaust cap on the exhaust port can prevent the raw materials inside the tank from directly contacting the air, reducing the possibility of contamination.

[0034] Preferably, as an improvement, it also includes a condensation structure disposed on a fixed pipeline, the condensation structure including a circulating water cooling pipeline connected to the fixed pipeline.

[0035] Beneficial effects:

[0036] 1. The condenser structure cools the high-temperature steam transported by the exhaust pipe, turning it into liquid that flows into the workshop drain. This prevents the volatilization of high-temperature acid and alkali vapors, which could re-contaminate equipment and walls, or even harm workers in the workshop.

[0037] 2. The installation of circulating water cooling pipelines allows chilled water to circulate repeatedly to cool the fixed pipelines, resulting in better cooling effect.

[0038] Preferably, as an improvement, the condensation structure includes a cooling sleeve fitted outside the middle of the fixed pipeline, with both ends of the cooling sleeve sealed, so that an interlayer is formed between it and the outer wall of the middle of the fixed pipeline; the cooling sleeve is provided with an inlet and an outlet, which are connected to the circulating water cooling pipeline.

[0039] Beneficial effects: The cooling sleeve is directly installed outside the fixed pipeline, and the chilled water of the circulating water cooling pipeline flows directly through the jacket to cool the fixed pipeline, thereby condensing the high-temperature steam passing through the fixed pipeline, resulting in a better condensation effect.

[0040] Preferably, as an improvement, the fixed pipeline has a segmented structure, with adjacent segments connected by flanges. A cooling section is provided, with two through holes. The circulating water cooling pipeline enters the cooling section through one through hole and exits through the other through hole.

[0041] Beneficial effects: The circulating water cooling pipeline is directly installed in the cooling section, which can directly condense the high-temperature steam passing through the fixed pipeline, resulting in better condensation effect.

[0042] Preferably, as an improvement, a collector is provided at the end of the fixed pipeline, and the collector is connected to the workshop trench; the inner diameter of the collector is larger than the outer diameter of the fixed pipeline.

[0043] Beneficial effects: The liquefied acid and alkali cleaning solution flows into the collector and is then discharged into the workshop ditch, which can prevent the acid and alkali cleaning solution from flowing onto the workshop floor and causing pollution. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model.

[0045] Figure 2 for Figure 1 A magnified schematic diagram of the condensation structure at point A.

[0046] Figure 3 for Figure 2 A schematic diagram of the alternative condensation structure.

[0047] Figure 4 This is a structural diagram of the production state (daily ventilation of the material tank) of Embodiment 1 of this utility model.

[0048] Figure 5 This is a schematic diagram of the structure of the CIP state (cleaning the tank with high-temperature acid and alkali solutions) in Embodiment 1 of this utility model.

[0049] Figure 6 This is a schematic diagram of the flexible connection between the movable bend and the fixed pipeline in Embodiment 2 of this utility model.

[0050] Figure 7 This is a schematic diagram of the support rod of the lifting mechanism in Embodiment 3 of this utility model being installed on the ground. Detailed Implementation

[0051] The following detailed description illustrates the specific implementation method:

[0052] The reference numerals in the accompanying drawings include: 1. Tank body; 2. Lifting mechanism; 21. Support part; 22. Mounting plate; 23. Drive part; 3. Breathing cap; 31. Exhaust hood; 32. Connecting pipe; 33. Exhaust cap; 4. Exhaust pipeline; 41. Movable bend; 42. Fixed pipeline; 5. Flared connecting cover; 6. Annular outer edge; 7. Condensation structure; 71. Circulating water cooling pipeline; 72. Cooling sleeve; 73. Cooling section; 8. Collector; 9. Sealing gasket; 10. Bellows.

[0053] like Figures 1 to 7 As shown:

[0054] Example 1

[0055] A type of tank that prevents water vapor contamination during cleaning, such as Figure 1, Figure 4 , Figure 5 As shown, it includes a tank body 1, a breathing cap 3 mounted on top of the tank body 1, and an exhaust pipe 4 covering the breathing cap 3. Figure 4 , Figure 5 As shown, the breathing cap 3 includes a stepped exhaust hood 31 and a connecting pipe 32. The exhaust hood 31 has a two-stage stepped structure with a decreasing diameter from top to bottom. The connecting pipe 32 is inserted and fixed at the bottom center of the exhaust hood 31, and the lower end of the connecting pipe 32 is connected to the inside of the tank. The upper end of the connecting pipe 32 extends into the exhaust hood 31, and an exhaust cap 33 is provided at this end. There is a gap between the exhaust cap 33 and the top and outer wall of the connecting pipe 32.

[0056] The exhaust pipe 4 includes a movable pipe and a fixed pipe 42. The movable pipe is an inverted U-shaped movable bend 41. One end of the movable bend 41 is used to connect with the exhaust hood 31, and the other end is used to connect with the fixed pipe 42. The end of the movable bend 41 that connects with the exhaust hood 31 is flared, and this flared end can abut against the second step of the exhaust hood 31. In this embodiment, the movable bend 41 and the fixed pipe 42 are connected by a cover-type contact connection. Specifically, at the end of the movable bend 41 that connects with the fixed pipe 42, either the movable bend 41 or the fixed pipe 42 is provided with a flared connecting cover 5, and the other is connected with an annular outer edge 6. The flared connecting cover 5 covers the annular outer edge 6. In this embodiment, the movable bend 41 is connected with an annular outer edge 6, and the fixed pipe 42 is provided with a flared connecting cover 5. To achieve better sealing, acid and alkali resistant sealing gaskets 9 can be provided between the movable bend 41 and the exhaust hood 31, and between the movable bend 41 and the fixed pipe 42. In this embodiment, the sealing gasket 9 is located at the second step of the exhaust hood 31 and at the bottom wall of the flared connecting cover 5 to prevent the sealing gasket 9 from falling out of the exhaust hood 31 / flared connecting cover 5 when the movable bend 41 is lifted. The fixed pipeline 42 is fixedly connected to the tank body 1 by multiple clamps.

[0057] The movable bend 41 is connected to a lifting mechanism 2 for driving its lifting and lowering, such as... Figure 1 As shown, the lifting mechanism 2 includes a support part 21 (in this embodiment, two spaced support rods) welded and fixed to the tank body 1, a mounting plate 22 mounted on the support rods, and a drive part 23 fixed to the mounting plate 22. In this embodiment, the drive part 23 is a three-axis cylinder. The power output shafts of the three-axis cylinder are evenly spaced, which makes the transmission of the cylinder's power output shaft to the movable bend 41 more stable. A connecting plate is welded and fixed to the power output shaft of the three-axis cylinder. Connecting ears are provided at both ends of the connecting plate. The top of the connecting ear is arc-shaped and welded and fixed to the bottom of the straight section of the movable bend 41. The connecting ear is located near the vertical section of the movable bend 41, thereby realizing stable support and lifting of the movable bend 41.

[0058] To facilitate the cooling of high-temperature steam flowing through the fixed pipeline 42, a condensation structure 7 is installed on the fixed pipeline 42. For example... Figure 2 As shown, the condensation structure 7 is a sandwich type, including a cooling sleeve 72 sleeved outside the middle of the fixed pipe 42. The cooling sleeve 72 is sealed at both ends, forming a sandwich between it and the outer wall of the middle part of the fixed pipe 42. The cooling sleeve 72 is provided with an inlet and an outlet, which are connected to the circulating water cooling pipe 71. The circulating water cooling pipe 71 is used to pass chilled water into the sandwich between the cooling sleeve 72 and the fixed pipe 42 for heat exchange.

[0059] In other embodiments besides this one, such as Figure 3 As shown, the fixed pipeline 42 has a segmented structure. In this embodiment, it is preferably a three-section structure (upper, middle, and lower), with adjacent sections connected by flanges. The middle section is a cooling section 73, and the condensation structure 7 is a circulating water-cooled pipeline 71. The middle cooling section 73 of the fixed pipeline 42 has two through holes. The water-cooled pipeline enters the middle section of the fixed pipeline 42 through one through hole, forming a spiral water-cooled section within the fixed pipeline 42. It then exits through the other through hole, forming the circulating water-cooled pipeline 71, thus achieving steam cooling and condensation. The spiral water-cooled section within the fixed pipeline 42 facilitates full contact with the passing steam.

[0060] Meanwhile, a collector 8 is provided at the end of the fixed pipe 42, such as Figure 1 As shown, collector 8 is connected to the workshop trench; the inner diameter of collector 8 is larger than the outer diameter of fixed pipe 42. The liquefied acid and alkali cleaning liquid flows into collector 8 and is then discharged into the workshop trench.

[0061] The specific working principle is as follows:

[0062] 1. When the material tank is in normal production and daily ventilation of the raw materials inside the tank is required, such as... Figure 1 , Figure 4 As shown, the three power output axes of the triaxial cylinder extend upwards, raising the movable bend 41 away from the exhaust hood 31 and the fixed pipe 42. At this point, it can be used as a normal breathing cap 3. The specific gas flow path is as follows: the gas discharged from the connecting pipe 32 rises to the upper end of the breathing cap 3 and then sinks, until it is discharged along the gap between the breathing cap 3 and the outer wall of the connecting pipe 32. This can meet the breathing and ventilation needs of the tank 1, which contains high-temperature raw materials and causes unstable air pressure, and also avoids direct contact between the raw materials inside the tank and the air, reducing the possibility of contamination. Furthermore, raising the movable bend 41 reduces the impact of the exhaust pipe 42 on the weighing of the tank, making the measurement more accurate.

[0063] 2. When cleaning the tank, the vapor generated by the high-temperature acid and alkali cleaning solution needs to be discharged and collected, such as... Figure 1 , Figure 5As shown, the power output of the three cylinders of the three-axis cylinder descends axially, causing the flared end of the movable bend 41 to press against the sealing gasket 9 at the second step of the exhaust hood 31, and the other end to press against the sealing gasket 9 on the bottom wall of the flared connecting cover 5 of the fixed pipe 42, thus connecting the connecting pipe 32, the movable bend 41, and the fixed pipe 42. At this time, the gas discharged from the connecting pipe 32 rises to the upper end of the breathing cap 3 and then sinks until it is discharged into the movable bend 41 through the gap between the breathing cap 3 and the outer wall of the connecting pipe 32, and then descends to the fixed pipe 42. After being cooled by the condensing structure 7 on the fixed pipe 42, it condenses into liquid and flows to the collector 8, where it is centrally discharged into the workshop ditch. This can prevent acid and alkali cleaning liquid from flowing onto the workshop floor and causing pollution.

[0064] Example 2

[0065] like Figure 6 As shown, the improvement of this embodiment compared to Embodiment 1 is that the movable bend 41 and the fixed pipe 42 are connected by an acid and alkali resistant corrugated pipe 10, and the corrugated pipe 10 is fixed to the movable bend 41 and the fixed pipe 42 using clamps. Its working principle is the same as in Embodiment 1, the only difference being that as the power output shafts of the three-axis cylinders rise and fall, the corrugated pipe 10 between the movable bend 41 and the fixed pipe 42 expands and contracts accordingly. Compared to the connection method in Embodiment 1, this provides a better sealing effect and a tighter connection.

[0066] Example 3

[0067] like Figure 7 As shown, the improvement of this embodiment compared to Embodiment 1 is that the support rod of the lifting mechanism 2 is fixed to the ground. Its working principle is the same as in Embodiment 1. Compared to Embodiment 1, where the support rod is fixed to the tank body 1, this better reduces the impact of the exhaust pipe 4 on the weighing of the tank, resulting in more accurate measurement. In other embodiments besides this one, the lifting mechanism 2 can also be fixed to a frame next to the tank body 1.

[0068] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A material tank that prevents water vapor contamination during cleaning, characterized in that: It includes a tank (1), a lifting mechanism (2), a breathing cap (3) set on the top of the tank (1), and an exhaust pipe (4) covering the breathing cap (3); the exhaust pipe (4) includes a movable pipe and a fixed pipe (42), the movable pipe being connected between the breathing cap (3) and the fixed pipe (42); the lifting mechanism (2) is used to drive the movable pipe to move, so that it is connected to or disconnected from the breathing cap (3) and the fixed pipe (42).

2. The material tank according to claim 1, which prevents water vapor contamination during cleaning, is characterized in that: The movable tubing is an inverted U-shaped movable bend (41); one end of the movable bend (41) is used to connect with the breathing cap (3), and the other end is used to connect with the fixed tubing (42).

3. The material tank according to claim 2, which can prevent water vapor contamination during cleaning, is characterized in that: The movable bend (41) and the fixed pipe (42) are connected by a cover or a flexible connection. When they are connected by a cover, either the movable bend (41) or the fixed pipe (42) is provided with a flared connecting cover (5) at one end of the movable bend (41) and the fixed pipe (42), and the other is connected with an annular outer edge (6). The flared connecting cover (5) is placed on the annular outer edge (6).

4. A material tank according to claim 2 that prevents water vapor contamination during cleaning, characterized in that: The lifting mechanism (2) includes a support part (21), a mounting plate (22) disposed on the support part (21), and a drive part (23) disposed on the mounting plate (22) for driving the movable bend (41) to lift. The power output end of the drive part (23) is fixedly connected to the straight section of the movable bend (41).

5. A material tank according to claim 1 that prevents water vapor contamination during cleaning, characterized in that: The breathing cap (3) includes a stepped exhaust hood (31) and a connecting pipe (32) located in the middle of the exhaust hood (31). The lower end of the connecting pipe (32) is connected to the inside of the tank. The upper end of the connecting pipe (32) extends into the exhaust hood (31). The end of the movable pipe is flared and can be tightly fitted onto the exhaust hood (31).

6. A material tank according to claim 5 that prevents water vapor contamination during cleaning, characterized in that: The end of the connecting pipe (32) extending into the exhaust hood (31) is covered with an exhaust cap (33), and there is a gap between the exhaust cap (33) and the top and outer wall of the connecting pipe (32).

7. A material tank according to claim 1 that prevents water vapor contamination during cleaning, characterized in that: It also includes a condensation structure (7) installed on a fixed pipeline (42), the condensation structure (7) including a circulating water cooling pipeline (71) connected to the fixed pipeline (42).

8. A material tank according to claim 7 that prevents water vapor contamination during cleaning, characterized in that: The condensation structure (7) includes a cooling sleeve (72) sleeved outside the middle of the fixed pipeline (42). The cooling sleeve (72) is sealed at both ends, so that it forms an interlayer with the outer wall of the middle of the fixed pipeline (42). The cooling sleeve (72) is provided with an inlet and an outlet, which are connected to the circulating water cooling pipeline (71).

9. A material tank according to claim 7 that prevents water vapor contamination during cleaning, characterized in that: The fixed pipeline (42) has a segmented structure, with adjacent segments connected by flanges. A cooling section (73) is provided, and two through holes are provided on the cooling section (73). The circulating water cooling pipeline (71) enters the cooling section (73) through one through hole and exits through the other through hole.

10. A material tank according to claim 1 that prevents water vapor contamination during cleaning, characterized in that: The fixed pipeline (42) is provided with a collector (8) at its end, and the collector (8) is connected to the workshop trench; the inner diameter of the collector (8) is larger than the outer diameter of the fixed pipeline (42).

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