High-efficiency low-resistance industrial waste gas multi-stage purification tower

Abstract

The utility model relates to the technical field of industrial waste gas purification, in particular to a high-efficiency low-resistance industrial waste gas multi-stage purification tower. The purification tower comprises a purification tower body and a liquid medicine tank, the arc surface of the purification tower body is communicated and connected with a water pipe, one end of the water pipe is communicated and connected with the liquid medicine tank, the arc surface of the purification tower body is provided with an air inlet, the upper surface of the purification tower body is provided with an air outlet, and the inner wall of the air inlet is provided with a filtering device. The filtering device comprises a circular ring frame, the circular ring frame is fixedly connected with the inner wall of the air inlet, the surface of the circular ring frame is slidably connected with a filtering plate, and a plurality of filtering holes are formed in the surface of the filtering plate. The problems that after pollutants such as large-particle impurities and dust in industrial waste gas enter core purification units such as a filler layer and an adsorption layer in a purification tower, blockage is formed, waste gas circulation resistance is increased, equipment energy consumption is increased, and precise parts such as a spraying device and a demister in the tower are abraded are solved.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste gas purification technology, and in particular to a high-efficiency, low-resistance multi-stage purification tower for industrial waste gas. Background Technology

[0002] High-efficiency, low-resistance multi-stage industrial waste gas purification towers are devices designed for the efficient purification of waste gas emitted during industrial production processes. Through a combination of multiple purification units operating on different principles, they achieve high purification efficiency while minimizing the resistance (pressure loss) of waste gas as it passes through the equipment, thereby reducing energy consumption and operating costs. With the acceleration of industrialization, the pollution caused by industrial waste gas emissions is becoming increasingly severe. However, traditional multi-stage industrial waste gas purification towers suffer from numerous problems in practical applications. Due to the lack of effective pre-filtration measures, large particulate impurities and dust pollutants in industrial waste gas directly enter the core purification units such as the packing layer and adsorption layer inside the tower. On the one hand, these pollutants easily accumulate in the packing and adsorption layers, causing blockages and significantly increasing the resistance to waste gas flow. To ensure smooth passage of waste gas through the tower, the equipment needs to consume more energy to drive the fan, leading to a substantial increase in energy consumption. On the other hand, large particulate pollutants flowing inside the tower cause wear and tear on precision components such as spray devices and demisters, shortening equipment lifespan and increasing maintenance costs.

[0003] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: industrial waste gas contains large particulate impurities, dust and other pollutants, which, after entering the core purification units such as the packing layer and adsorption layer inside the purification tower, will cause blockage, resulting in increased waste gas flow resistance, increased equipment energy consumption, and wear and tear on precision components such as spray devices and demisters inside the tower; therefore, in order to address the above problems, a high-efficiency, low-resistance multi-stage purification tower for industrial waste gas is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where large particulate impurities and dust pollutants in industrial waste gas can cause blockages in the core purification units such as the packing layer and adsorption layer inside the purification tower, leading to increased resistance to waste gas flow, higher energy consumption, and wear and tear on precision components such as spray devices and demisters inside the tower. Therefore, this invention proposes a high-efficiency, low-resistance multi-stage purification tower for industrial waste gas.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency, low-resistance multi-stage purification tower for industrial waste gas, comprising a purification tower body and a chemical tank. A water pipe is connected to the arc surface of the purification tower body, and one end of the water pipe is connected to the chemical tank. An air inlet is provided on the arc surface of the purification tower body, and an exhaust outlet is provided on the upper surface of the purification tower body. A filter device is provided on the inner wall of the air inlet. The filter device includes a circular frame, which is fixedly connected to the inner wall of the air inlet. A filter plate is slidably connected to the surface of the circular frame. Several filter holes are provided on the surface of the filter plate. Two threaded rods are inserted into the threaded surface of the arc surface of the air inlet. Two circular grooves are provided on the arc surface of the filter plate. The inner wall of the circular grooves of the filter plate is connected to the threaded rods. A circular plate is rotatably connected to one end of the threaded rod.

[0006] The aforementioned components achieve the following effects: by setting up a filtration device, the industrial waste gas entering the purification tower can be pre-filtered, effectively intercepting large particulate impurities, dust and other pollutants in the waste gas, ensuring the efficient and stable operation of subsequent multi-stage purification processes, and preventing them from entering the core purification units such as the packing layer and adsorption layer inside the purification tower, causing blockages, increasing the resistance to waste gas flow, increasing equipment energy consumption, and causing wear and tear on precision components such as the spray device and demister inside the tower.

[0007] Preferably, the circular plate has a plurality of anti-slip grooves on its arc surface, and the plurality of anti-slip grooves are evenly distributed on the circular plate in a circumferential array.

[0008] The effect achieved by the above-mentioned components is that by setting anti-slip grooves, the friction between the hand and the surface of the circular plate is increased, which provides convenience for operators when disassembling and installing the filter plate.

[0009] Preferably, the inner wall of the air inlet has two limiting grooves, and the arc surface of the filter plate is fixedly connected to two limiting blocks, with the inner wall of the limiting grooves slidably connected to the limiting blocks.

[0010] The aforementioned components achieve the following effect: they provide precise guidance for the filter plate, enabling it to be quickly and accurately positioned in the preset location within the air inlet, thus avoiding installation deviations and greatly improving installation efficiency.

[0011] Preferably, a long rod is fixedly connected to the surface of the filter plate, and a handle is fixedly connected to one end of the long rod.

[0012] The effect achieved by the above-mentioned components is that, by setting up the grip plate, when disassembling or installing the filter plate, the operator can directly hold the grip plate and push or pull the filter plate between the ring frame and the limiting groove more easily through the lever arm provided by the long rod. Compared with directly applying force to the filter plate, the operation difficulty is greatly reduced.

[0013] Preferably, a volume control device is provided on one side of the medicine pool. The volume control device includes a hollow tube that is connected to one side of the medicine pool. A volume control cup is fixedly connected to one end of the hollow tube. A through hole is opened on the bottom surface of the volume control cup. One end of the hollow tube is connected to the through hole of the volume control cup. A fixing plate is fixedly connected to the surface of the volume control cup. A rotating rod is slidably inserted into the fixing plate. A baffle is fixedly connected to one end of the rotating rod. The size of the baffle is larger than the size of the through hole of the volume control cup. A fixing rod is slidably inserted into the fixing plate. An insertion hole is opened on the arc surface of the rotating rod. The inner wall of the insertion hole of the rotating rod is slidably connected to the fixing rod. A pull plate is fixedly connected to one end of the fixing rod.

[0014] The effect achieved by the above components is that, by setting up a flow control device, the amount of chemical solution added can be precisely controlled according to the composition, concentration and purification requirements of industrial waste gas. This avoids the waste of resources and increased cost of subsequent waste liquid treatment caused by excessive chemical solution addition, or the problem of reduced purification efficiency and incomplete removal of pollutants caused by insufficient chemical solution addition.

[0015] Preferably, the arc surface of the fixing rod is fitted with a spring, and the two ends of the spring are fixedly connected to the fixing plate and the pull plate, respectively.

[0016] The effect achieved by the above components is that, under the action of the spring, the fixing rod automatically springs back and inserts into the insertion hole of the rotating rod, and the fixing rod fits tightly with the insertion hole, thereby enhancing the stability of the device.

[0017] Preferably, a sealing gasket is fixedly connected to the lower surface of the baffle, and the size of the sealing gasket is larger than the size of the perforation of the measuring cup.

[0018] The effect achieved by the above components is as follows: by setting a sealing gasket, the sealing gasket can compensate for the small gap between the baffle and the measuring cup, preventing the medicine from leaking out of the perforation gap, avoiding waste and pollution caused by medicine dripping, and ensuring the accuracy of the medicine volume in the measuring cup.

[0019] 1. In this utility model, by setting up a filtration device, the industrial waste gas entering the purification tower can be pre-filtered, effectively intercepting large particulate impurities, dust and other pollutants in the waste gas, ensuring the efficient and stable operation of subsequent multi-stage purification processes, and preventing them from entering the core purification units such as the packing layer and adsorption layer inside the purification tower, forming blockages, which would increase the resistance to waste gas flow, increase equipment energy consumption, and cause wear and tear on precision components such as the spray device and demister inside the tower.

[0020] 2. In this utility model, by setting a quantity control device, the amount of chemical solution added can be precisely controlled according to the composition, concentration and purification requirements of industrial waste gas. This avoids the waste of resources and increased subsequent waste liquid treatment costs caused by excessive chemical solution addition, or the problems of reduced purification efficiency and incomplete removal of pollutants caused by insufficient chemical solution addition. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the circular ring frame in this utility model;

[0023] Figure 3 This is a schematic diagram of the filtration device in this utility model;

[0024] Figure 4 This is a schematic diagram of the central control device of this utility model;

[0025] Figure 5 In this utility model Figure 4 Enlarged view of point A;

[0026] Figure 6 This is a partial structural schematic diagram of the central control device of this utility model.

[0027] Legend: 1. Purification tower body; 2. Chemical tank; 3. Water pipe; 4. Air inlet; 5. Exhaust outlet; 6. Filtration device; 601. Circular ring frame; 602. Filter plate; 603. Filter hole; 604. Threaded rod; 605. Circular plate; 606. Anti-slip groove; 607. Limiting groove; 608. Limiting block; 609. Long rod; 610. Grip plate; 7. Measuring device; 71. Hollow tube; 72. Measuring cup; 73. Fixing plate; 74. Rotating rod; 75. Baffle; 76. Fixing rod; 77. Pull plate; 78. Spring; 79. Sealing gasket. Detailed Implementation

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this utility model provides a technical solution: a high-efficiency, low-resistance multi-stage industrial waste gas purification tower, including a purification tower body 1 and a chemical tank 2. A water pipe 3 is connected to the arc-shaped surface of the purification tower body 1, with one end of the water pipe 3 connected to the chemical tank 2. An air inlet 4 is provided on the arc-shaped surface of the purification tower body 1, and an exhaust port 5 is provided on the upper surface of the purification tower body 1. A filter device 6 is provided on the inner wall of the air inlet 4. By setting the filter device 6, the industrial waste gas entering the purification tower can be pre-filtered, effectively intercepting large particulate impurities, dust, and other pollutants in the waste gas, ensuring the smooth operation of subsequent multi-stage purification processes. To ensure efficient and stable operation and prevent blockages in the core purification units such as the packing layer and adsorption layer inside the purification tower, which would increase the resistance to waste gas flow, increase equipment energy consumption, and cause wear and tear on precision components such as the spraying device and demister inside the tower, a flow control device 7 is installed on one side of the chemical tank 2. By setting the flow control device 7, the amount of chemical solution added can be precisely controlled according to the composition, concentration and purification requirements of the industrial waste gas. This avoids the waste of resources and increased subsequent waste liquid treatment costs caused by excessive chemical solution addition, or the problem of reduced purification efficiency and incomplete pollutant removal caused by insufficient chemical solution addition.

[0029] The following section will describe the specific setup and function of its filter device 6 and flow control device 7.

[0030] Reference Figure 2 and Figure 3As shown in this embodiment: the filter device 6 includes a circular frame 601, which is fixedly connected to the inner wall of the air inlet 4. A filter plate 602 is slidably connected to the surface of the circular frame 601. The surface of the filter plate 602 has several filter holes 603. Two threaded rods 604 are inserted into the arc-shaped threaded surface of the air inlet 4. Two circular grooves are formed on the arc-shaped surface of the filter plate 602. The inner wall of the circular grooves of the filter plate 602 is connected to the threaded rods 604. One end of the threaded rods 604 is rotatably connected to a circular plate 605. The arc-shaped surface of the circular plate 605 has several anti-slip grooves 606, which are evenly distributed in a circumferential array on the circular plate 605. By setting the anti-slip grooves 606, the friction between the hand and the surface of the circular plate 605 is increased, providing convenience for the operator to disassemble and install the filter plate 602. Two limiting grooves 607 are provided on the inner wall of the filter plate 602. Two limiting blocks 608 are fixedly connected to the arc surface of the filter plate 602. The inner wall of the limiting groove 607 is slidably connected to the limiting block 608, which achieves the effect of providing precise guidance for the filter plate 602, so that the filter plate 602 can be quickly and accurately positioned in the preset position in the air inlet 4, avoiding installation deviation and greatly improving installation efficiency. A long rod 609 is fixedly connected to the surface of the filter plate 602. A grip plate 610 is fixedly connected to one end of the long rod 609. By setting the grip plate 610, when disassembling or installing the filter plate 602, the operator can directly hold the grip plate 610 and push or pull the filter plate 602 between the ring frame 601 and the limiting groove 607 more easily through the leverage arm provided by the long rod 609. Compared with directly applying force to the filter plate 602, the operation difficulty is greatly reduced.

[0031] Reference Figure 4 , Figure 5 and Figure 6As shown, specifically, the volume control device 7 includes a hollow tube 71, which is connected to one side of the medicine tank 2. A volume control cup 72 is fixedly connected to one end of the hollow tube 71. A through hole is opened on the bottom surface of the volume control cup 72. One end of the hollow tube 71 is connected to the through hole of the volume control cup 72. A fixing plate 73 is fixedly connected to the surface of the volume control cup 72. A rotating rod 74 is slidably inserted into the fixing plate 73. A baffle 75 is fixedly connected to one end of the rotating rod 74. The size of the baffle 75 is larger than the size of the through hole of the volume control cup 72. A fixing rod 76 is slidably inserted into the fixing plate 73. An insertion hole is opened on the arc surface of the rotating rod 74. The inner wall of the insertion hole of the rotating rod 74 is slidably connected to the fixing rod 76. A pull plate 77 is fixedly connected to one end of the fixing rod 76. A spring 78 is fitted onto the arc surface of the fixed rod 76. The two ends of the spring 78 are fixedly connected to the fixed plate 73 and the pull plate 77, respectively. Under the force of the spring 78, the fixed rod 76 is automatically rebounded and inserted into the insertion hole of the rotating rod 74, and the fixed rod 76 is tightly fitted with the insertion hole, which enhances the stability of the device. A sealing gasket 79 is fixedly connected to the lower surface of the baffle 75. The size of the sealing gasket 79 is larger than the size of the through hole of the measuring cup 72. By setting the sealing gasket 79, the sealing gasket 79 can compensate for the small gap between the baffle 75 and the measuring cup 72, preventing the medicine from leaking from the through hole, avoiding waste and pollution caused by the leakage of medicine, and ensuring the accuracy of the amount of medicine in the measuring cup 72.

[0032] Working principle: When pre-filtration of industrial waste gas is required, the waste gas enters through the inlet 4 of the purification tower body 1 and first contacts the filter device 6 on the inner wall of the inlet 4. The circular frame 601 is fixed to the inner wall of the inlet 4, providing an installation base for the filter plate 602. The filter holes 603 on the surface of the filter plate 602 form the first interception barrier. When the waste gas passes through, large particles, dust, and other pollutants are blocked by the filter holes 603, achieving pre-filtration of the waste gas and reducing the processing load of subsequent purification stages. The filter plate 602 and the circular frame 601 are slidably connected. At the same time, the limiting groove 607 on the inner wall of the inlet 4 and the limiting block 608 on the arc surface of the filter plate 602 slide together. This dual structure ensures that the filter plate 602 is accurately positioned and stably installed in the inlet 4. During installation, the limiting block 608 slides along the limiting groove 607, guiding the filter plate 602 to quickly reach the preset position and preventing installation deviation. When it is necessary to disassemble, clean, or replace the filter plate 602, the staff... Holding the grip plate 610 at one end of the long rod 609 on the surface of the filter plate 602, the lever provided by the long rod 609 makes operation easier. Rotating the circular plate 605, the anti-slip groove 606 on the arc surface of the circular plate 605 increases the friction of the hand, and easily turning the threaded rod 604 connected to the circular groove of the filter plate 602 to release the fixation of the filter plate 602. Then, by holding the grip plate 610, the filter plate 602 is pulled and slid out of the air inlet 4 along the ring frame 601 and the limiting groove 607 to complete the disassembly. The whole process is convenient to operate and easy to maintain. By setting up the filter device 6, the industrial waste gas entering the purification tower can be pre-filtered, effectively intercepting large particulate impurities, dust and other pollutants in the waste gas, ensuring the efficient and stable operation of the subsequent multi-stage purification process, and preventing them from entering the core purification units such as the packing layer and adsorption layer inside the purification tower, forming blockages, which would increase the resistance to waste gas flow, increase equipment energy consumption, and wear and tear on precision components such as the spray device and demister inside the tower.

[0033] Working principle: When the purification tower needs to be replenished with chemical solution, pour the appropriate amount of chemical solution into the measuring cup 72 and observe the scale on the measuring cup 72 until the amount of chemical solution and the exhaust gas form a suitable ratio. Then stop and pull the pull plate 77. The pull plate 77 drives the fixing rod 76 to overcome the elastic force of the spring 78 and pull it out of the insertion hole of the rotating rod 74, releasing the fixing restriction on the rotating rod 74. At this time, rotate the rotating rod 74, which drives the baffle 75 at one end to rotate. When the baffle 75 rotates to the point where it is misaligned with the perforation on the bottom surface of the measuring cup 72, the perforation opens, and the chemical solution in the measuring cup 72 flows into the chemical solution tank 2 through the perforation and hollow tube 71 under the action of gravity. Then it enters the purification tower body 1 through the water pipe 3, realizing the addition of chemical solution. When the required chemical solution flow rate is reached, release the pull plate 77, and the spring 78 will release the elastic force. The restoring force pushes the pull plate 77 and the fixing rod 76, causing the fixing rod 76 to re-insert into the insertion hole of the rotating rod 74, firmly fixing the rotating rod 74, and thus locking the position of the baffle 75. In addition, when the baffle 75 covers the perforation, the sealing gasket 79 on the lower surface of the baffle 75, due to its own elasticity and large size, tightly fits the bottom surface of the measuring cup 72, forming a good sealing effect, preventing the liquid from leaking, ensuring the accuracy of the volume control, and reducing the waste of liquid and the risk of pollution. By setting the volume control device 7, the effect of accurately controlling the amount of liquid added according to the composition, concentration and purification requirements of industrial waste gas is achieved, avoiding the waste of resources and the increase in subsequent waste liquid treatment costs caused by excessive liquid addition, or the problem of reduced purification efficiency and incomplete removal of pollutants caused by insufficient liquid addition.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A high-efficiency low-resistance industrial waste gas multi-stage purification tower, comprising a purification tower body (1) and a chemical pool (2), characterized in that: A water pipe (3) is connected to the arc surface of the purification tower body (1). One end of the water pipe (3) is connected to the medicine tank (2). An air inlet (4) is provided on the arc surface of the purification tower body (1). An exhaust port (5) is provided on the upper surface of the purification tower body (1). A filter device (6) is provided on the inner wall of the air inlet (4). The filter device (6) includes a circular frame (601). The circular frame (601) is fixedly connected to the inner wall of the air inlet (4). A filter plate (602) is slidably connected to the surface of the ring frame (601). The surface of the filter plate (602) has several filter holes (603). Two threaded rods (604) are inserted into the arc-shaped threaded surface of the air inlet (4). Two circular grooves are opened on the arc-shaped surface of the filter plate (602). The inner wall of the circular groove of the filter plate (602) is connected to the threaded rod (604). One end of the threaded rod (604) is rotatably connected to a circular plate (605).

2. The high-efficiency and low-resistance industrial waste gas multistage purification tower according to claim 1, characterized in that: The circular plate (605) has a plurality of anti-slip grooves (606) on its arc surface, and the plurality of anti-slip grooves (606) are evenly distributed in a circumferential array on the circular plate (605).

3. The high-efficiency, low-resistance multi-stage industrial waste gas purification tower according to claim 1, characterized in that: The inner wall of the air inlet (4) has two limiting grooves (607), and the arc surface of the filter plate (602) is fixedly connected to two limiting blocks (608). The inner wall of the limiting groove (607) is slidably connected to the limiting block (608).

4. The high-efficiency, low-resistance multi-stage industrial waste gas purification tower according to claim 1, characterized in that: A long rod (609) is fixedly connected to the surface of the filter plate (602), and a grip plate (610) is fixedly connected to one end of the long rod (609).

5. The high-efficiency, low-resistance multi-stage industrial waste gas purification tower according to claim 1, characterized in that: A volume control device (7) is provided on one side of the medicine pool (2). The volume control device (7) includes a hollow tube (71), which is connected to one side of the medicine pool (2). A volume control cup (72) is fixedly connected to one end of the hollow tube (71). A perforation is opened on the bottom surface of the volume control cup (72). One end of the hollow tube (71) is connected to the perforation of the volume control cup (72). A fixing plate (73) is fixedly connected to the surface of the volume control cup (72). A rotating rod (74) is slidably inserted into a fixed plate (73). A baffle (75) is fixedly connected to one end of the rotating rod (74). The size of the baffle (75) is larger than the size of the through hole of the measuring cup (72). A fixed rod (76) is slidably inserted into the fixed plate (73). An insertion hole is opened on the arc surface of the rotating rod (74). The inner wall of the insertion hole of the rotating rod (74) is slidably connected to the fixed rod (76). A pull plate (77) is fixedly connected to one end of the fixed rod (76).

6. The high-efficiency, low-resistance multi-stage industrial waste gas purification tower according to claim 5, characterized in that: The arc surface of the fixing rod (76) is fitted with a spring (78), and the two ends of the spring (78) are fixedly connected to the fixing plate (73) and the pull plate (77) respectively.

7. The high-efficiency, low-resistance multi-stage industrial waste gas purification tower according to claim 5, characterized in that: A sealing gasket (79) is fixedly connected to the lower surface of the baffle (75), and the size of the sealing gasket (79) is larger than the size of the perforation of the measuring cup (72).

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