A device for quick replacement of washing column packing

Abstract

The utility model discloses a device for quick replacement washing tower packing, include: polypropylene pipe, vertical installation is in the washing tower inner wall, and the through multiple packing layer, in the packing support board's top of every packing layer, the corresponding polypropylene pipe department, set up the movable window, the elbow pipe, its upper end is connected with the lower end of polypropylene pipe, and the lower end of elbow pipe is outwardly protruding through the opening set up in the lateral edge of washing tower, liquid baffle, block in the outlet of elbow pipe, when the waste packing is discharged, and the liquid baffle is extracted, the collection frame is set up below the outlet of elbow pipe. This embodiment provides a device for quick replacement packing in washing tower, reduces the manual work when cleaning washing tower, shortens the cleaning time, reduces the harm of the acid and alkaline environment in the tower to the body, and the packing of waste gas is collected uniformly. The whole replacement washing tower packing device structure is simple, stable and reliable, and the packing in the washing tower can be replaced quickly and effectively.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization washing technology, specifically to a device for quickly replacing the packing of a washing tower. Background Technology

[0002] Since the vigorous development of domestic industry in the 1980s, the scrubbing tower industry has gradually grown stronger, primarily through the application of desulfurization technology. Currently, various types of waste gas are generated in the production and processing stages of PCB, semiconductor, electronics and optoelectronics, metallurgical plants, plastics, pickling and electroplating plants, chemicals, pharmaceuticals, deodorization, and other water-soluble air pollutants. The composition of waste gas varies among different industries. Ineffective control of waste gas has far-reaching consequences, leading to increasingly complex environmental pollution and a growing number of treatment methods. As an indispensable pretreatment stage in environmental protection projects, scrubbing towers play a significant role in the overall environmental protection project. Currently, various countries and regions face the challenge of treating polluting gases emitted during production and processing. Furthermore, waste gas generation involves various stages; if the consequences of direct discharge of waste gas are not addressed, irreversible air pollution will occur, and inhaling these untreated waste gases will pose significant health problems.

[0003] A scrubbing tower is a gas purification device. In the early stages of the coal chemical industry, it was used for dust removal and dehumidification. Currently, to meet the initial treatment needs of polluted gases, it is widely used in the treatment of industrial waste gas and organic waste gas, showing good results in the early stages of comprehensive waste gas treatment. The earliest scrubbing tower model was very simple: water was effectively sprayed through the tower using related equipment. The purpose of spraying was to direct the water in a specific direction, forming a spray surface within the tower, combining with the waste gas or other forms of multiphase gases, and guiding the waste gas through primary treatment under the guidance of gravity. This method was very inefficient. Therefore, packing layers or other plate structures are often added to the tower to increase the specific surface area of ​​contact between the liquid and waste gas, improve mass transfer efficiency, and enhance the uniformity of contact between the gas and liquid phases as they pass through the packing layer. However, many problems have also been exposed during the long-term use of the scrubbing tower. For example, the scrubbing tower has a lot of packing layers and contains a lot of Pall rings (Raschig rings). Due to the special nature of these packings, it is difficult to clean them directly. In addition, there are acidic and alkaline solutions in the tower, which requires workers to wear protective clothing and operate inside the tower for a long time. This not only has a serious impact on the health of workers, but also cannot meet the daily production efficiency of enterprises, causing many indirect economic losses. Utility Model Content

[0004] In view of this, the present invention provides a device for quickly replacing the packing of a washing tower, so as to solve the problem of low production efficiency in the existing washing tower packing replacement method.

[0005] This utility model provides a device for quickly replacing the packing material in a scrubbing tower, comprising:

[0006] Polypropylene pipes are installed vertically on the inner wall of the washing tower, running through multiple packing layers; an operable window is provided at the corresponding polypropylene pipe above the packing support plate of each packing layer.

[0007] The upper end of the bend is connected to the lower end of the polypropylene pipe, and the lower end of the bend extends outward through an opening on the side of the washing tower.

[0008] A baffle plate is placed at the outlet of the bend in the pipe and is pulled out when the waste packing is discharged.

[0009] The collection box is located below the outlet of the bend pipe.

[0010] Optionally, the bend is a 45° elbow.

[0011] Optionally, several small holes are made at the lower end of the bend inside the scrubbing tower; the diameter of the holes is smaller than the diameter of the waste packing.

[0012] Optionally, the movable window is a lift-up window, with the lifting rope located outside the scrubbing tower.

[0013] Optionally, the liquid baffle is made of acrylic sheet.

[0014] Optionally, it also includes:

[0015] A flow sensor, located at the bottom of the bend opening, is used to monitor whether the liquid in the waste packing has completely drained.

[0016] The display screen is electrically connected to the flow sensor; the display screen is located on the outside of the scrubbing tower.

[0017] Optionally, it also includes:

[0018] The feeding mechanism consists of a control lever and a feeding plate; one end of the control lever extends outward through a side opening of the washing tower opposite to the polypropylene pipe, and the other end of the control lever is connected to the feeding plate.

[0019] Optionally, the control lever and the side opening of the scrubbing tower are connected by a flexible sealing material.

[0020] The beneficial effects of this utility model are:

[0021] This embodiment provides a device for quickly replacing the packing material inside a scrubbing tower. This reduces manual labor during tower cleaning, shortens cleaning time, minimizes the harm to the body from the acidic or alkaline environment inside the tower, and centrally collects the waste gas from the packing material. The entire device for replacing the scrubbing tower packing material is simple in structure, stable and reliable, and can quickly and effectively replace the packing material inside the scrubbing tower. Attached Figure Description

[0022] The features and advantages of this utility model will be more clearly understood by referring to the accompanying drawings. The drawings are schematic and should not be construed as limiting the utility model in any way. In the drawings:

[0023] Figure 1 A structural diagram of a device for quickly replacing the packing material of a washing tower is shown in an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the waste packing discharge process of a device for quickly replacing the packing of a washing tower, according to an embodiment of the present invention, is shown.

[0025] Figure 3 A schematic diagram showing the installation position of the PP pipe in a device for quickly replacing the packing of a washing tower according to an embodiment of the present invention is shown.

[0026] Figure 4 A schematic diagram of a washing tower structure according to an embodiment of the present invention is shown. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] This utility model provides a device for quickly replacing the packing material in a scrubbing tower, such as... Figure 1 and Figure 3 As shown, the system includes a polypropylene pipe (PP pipe) 1, a movable window 3, a bend 4, a baffle plate 5, and a collection frame 6. The polypropylene pipe 1 is vertically installed on the inner wall of the scrubbing tower, penetrating multiple packing layers. The movable window 3 is located above the packing support plate 2 of each packing layer at the corresponding location on the polypropylene pipe 1. The upper end of the bend 4 is connected to the lower end of the polypropylene pipe 1, and the lower end of the bend 4 extends outward through an opening on the side of the scrubbing tower. The baffle plate 5 seals the outlet of the bend 4 and is pulled out when waste packing is discharged. The collection frame 6 is located below the outlet of the bend 4.

[0029] This embodiment provides a device for quickly replacing the packing material inside a scrubbing tower. A PP pipe is inserted tightly along the right side of the scrubbing tower, with a hole drilled in the pipe wall, which is sealed with a movable window. An elbow is made at a height of 1.4 meters above the ground, exiting the scrubbing tower, and is sealed externally with an acrylic sheet. A small hole is made at the lower part of the elbow inside the scrubbing tower to allow liquid from the PP pipe to flow into the tower. A packing material collection device is placed below the elbow. Considering the acidic or alkaline environment inside the scrubbing tower, a single, continuous PP pipe is used for the packing layer, providing good corrosion resistance.

[0030] As an optional implementation, bend 4 is a 45° bend.

[0031] As an optional implementation, several small holes are made at the lower end of the bend 4 located inside the scrubbing tower; the diameter of the holes is smaller than the diameter of the waste packing.

[0032] In this embodiment, the bend 4 is a corrugated pipe, with small holes opened in the protruding part of the corrugated pipe. The corrugated structure of the pipe accelerates the downward flow of the waste liquid. In a specific embodiment, a flow sensor is provided at the bottom outer side of the opening in the bend 4 to monitor whether the liquid in the waste packing has completely flowed out, and the monitoring results are displayed on an external display screen.

[0033] As an optional implementation, the movable window 3 is a vertically sliding window, with the lifting rope placed outside the washing tower.

[0034] In this embodiment, the lifting window is pulled upward by pulling the lifting rope. After the window is opened, the lifting rope is wrapped around the fixed stake. After the waste filling material is discharged, the lifting rope is released, the lifting window falls back, and the movable window is closed.

[0035] As an optional implementation, the liquid baffle 5 is an acrylic plate.

[0036] As an optional implementation, a pushing mechanism consisting of a joystick and a pusher plate is also included. One end of the joystick extends outward through a side opening of the washing tower on the side opposite to the polypropylene pipe 1, and the other end of the joystick is connected to the pusher plate.

[0037] In this embodiment, a flexible sealing material is provided between the control lever and the side opening of the washing tower to ensure that polluted gas can escape during the feeding process.

[0038] The following describes the operation of a device for quickly replacing the packing material of a scrubbing tower provided in this embodiment:

[0039] When the scrubbing tower is operating normally, the movable window on the side wall of the PP pipe is closed, preventing exhaust gas from escaping from the tower and the packing. When it is necessary to replace the Pall rings (Raschig rings) packing inside the tower, such as... Figure 2As shown, simply open the movable window and push the Pall ring to the opening. The Pall ring will then travel along the PP pipe to the elbow. The liquid entrained in the packing will flow out from the small hole at the bottom of the elbow. After the liquid has flowed out, you only need to manually remove the acrylic plate at the elbow, and the packing will automatically enter the collection box, completing the cleaning of the packing inside the tower.

[0040] The basic principle of industrial waste gas scrubbing towers is to utilize the contact between gas and liquid to transfer pollutants from the gas to the liquid. Packed spray absorption towers are manufactured primarily with PP (polypropylene) as the material. The packing material consists of Pall rings or hollow spheres made of PP. Based on the principle that the gas absorption process occurs at the gas-liquid interface, and the transfer rate is proportional to the interface area, the packing is used to increase the contact area between the two phases, ensuring sufficient dispersion. Then, the clean gas is separated from the contaminated liquid, achieving the purpose of purifying the air. In vertical scrubbing towers, gas flows upward through the bed, while the liquid drips downward through the packing under gravity. The packing is typically composed of small plastic or metal objects. The liquid wets the surface of the packing, which is designed to provide a large surface area for gas-liquid contact. A liquid distribution manifold located above the packing evenly distributes the scrubbing solution to the top of the packing. The recirculated scrubbing liquid typically contains alkaline, acidic, or oxidizing detergents to achieve the desired effluent discharge. Figure 4 As shown, the scrubbing tower consists of a lower cylindrical body 8 and an upper reducing pipe 13, which are connected by flanges. A manual ball valve 9 and a ball valve connector 10 are located at the lower end of the cylindrical body 8. Inside the scrubbing tower, there is an inlet pipe 12 and several spray heads 11. The inlet pipe 12 is located at the upper end of the cylindrical body 8 and extends into the scrubbing tower through a side opening. Multiple layers of packing are distributed inside the scrubbing tower. The inlet pipe is divided into two sections, fixedly connected by flanges 14. The inlet pipe 15 outside the scrubbing tower is connected to a motor 18, which is fixedly installed via a motor bracket 19. The spray liquid is pumped upwards by a motor pump. An inspection port 17 and a valve 16 are located in the middle of the scrubbing tower cylindrical body 8. The lower end of the cylindrical body 8 (the area below the packing layer) is an air chamber. The spray liquid mixes with the exhaust gas, and after being adsorbed by the intermediate packing, the resulting waste liquid and circulating liquid collect at the bottom of the air chamber and are then discharged through the ball valve connector 10. Alternatively, the circulating liquid can be further treated and reconnected to the inlet system for recycling. The exhaust gas is forced into the pressure equalization chamber of the purification tower by the fan. It first enters the bubbling section for bubbling treatment, and then passes through multi-stage packing, spraying, and misting treatment to ensure that the gas and liquid phases fully contact in opposite directions to undergo neutralization and absorption reactions. It then flows upward to the packing layer to contact and react with the spray liquid. Depending on the gas purification situation and other indicators, a third-stage packing and spraying device can be added. After entering the deliquer for deliquification treatment, it is discharged into the atmosphere. The treated gas meets the national emission standards.

[0041] Taking a certain enterprise as an example, its flue gas contained a large amount of soot and sulfur dioxide, seriously affecting the air quality of the surrounding environment. To reduce pollutant emissions, the enterprise installed a scrubbing tower, which dissolved the soot and sulfur dioxide through spraying scrubbing liquid, thus purifying the flue gas. After a period of operation, the scrubbing tower's purification effect was significant, with a soot removal rate exceeding 99% and a sulfur dioxide removal rate exceeding 90%, greatly improving the surrounding environment. However, after a long period of operation, the internal packing material of the scrubbing tower reached the standard for replacement. Workers used a lever to push the waste packing material into a PP pipe, which then flowed into a collection device. The enterprise then replenished the scrubbing tower with new packing material, quickly completing the packing replacement and saving the enterprise considerable costs and time, while improving production efficiency.

[0042] This embodiment provides a novel device for quickly replacing the packing material inside a scrubbing tower. This reduces manual labor during tower cleaning, shortens cleaning time, minimizes the harm to health from the acidic or alkaline environment inside the tower, and centrally collects the waste gas from the packing material. The entire device is simple in structure, stable and reliable, and can quickly and effectively replace the packing material inside the scrubbing tower.

[0043] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A device for quickly replacing the packing material in a scrubbing tower, characterized in that, include: A polypropylene pipe (1) is vertically installed on the inner wall of the washing tower, penetrating multiple packing layers; an movable window (3) is provided above the packing support plate (2) of each packing layer at the position corresponding to the polypropylene pipe (1); The upper end of the bend (4) is connected to the lower end of the polypropylene pipe (1), and the lower end of the bend (4) extends outward through an opening on the side of the washing tower. A baffle plate (5) is used to seal the outlet of the bend (4). The baffle plate (5) is pulled out when the waste packing is discharged. A collection box (6) is located below the outlet of the bend (4).

2. The apparatus for quickly replacing the packing material of a scrubbing tower according to claim 1, characterized in that, The bend (4) is a 45° bend.

3. The apparatus for quickly replacing the packing material of a scrubbing tower according to claim 1, characterized in that, Several small holes are made at the lower end of the bend (4) located inside the washing tower; the diameter of the small holes is smaller than the diameter of the waste packing.

4. The apparatus for quickly replacing the packing material of a scrubbing tower according to claim 1, characterized in that, The movable window (3) is a vertically pull-up window, and the pull rope is placed outside the washing tower.

5. The apparatus for quickly replacing the packing material of a scrubbing tower according to claim 3, characterized in that, The liquid baffle (5) is an acrylic plate.

6. The apparatus for quickly replacing the packing material of a scrubbing tower according to claim 3, characterized in that, Also includes: A flow sensor is installed at the bottom of the opening of the bend (4) to monitor whether the liquid in the waste packing has flowed out completely. The display screen is electrically connected to the flow sensor; The display screen is located on the outside of the washing tower.

7. The apparatus for quickly replacing the packing material of a scrubbing tower according to claim 1, characterized in that, Also includes: The feeding mechanism consists of a control lever and a feeding plate; wherein one end of the control lever extends outward through a side opening of the washing tower on the side opposite to the polypropylene pipe (1), and the other end of the control lever is connected to the feeding plate.

8. The apparatus for quickly replacing the packing material of a scrubbing tower according to claim 7, characterized in that, The control lever and the side opening of the washing tower are connected by a flexible sealing material.

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