Alkali-liquor-free washing tower
By installing a cleaning mechanism inside the alkali-free scrubbing tower, the nozzles are cleaned using the water flow vibration of the electrically controlled push rod and spray nozzles, thus solving the nozzle clogging problem and ensuring the waste gas treatment effect and equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-10
AI Technical Summary
The nozzles of existing alkali-free scrubbing towers are prone to clogging after prolonged use, affecting the waste gas treatment effect.
A cleaning mechanism is installed inside the scrubbing tower, including a support frame, a flexible telescopic rod, a hemispherical tank, and an inclined plate. The hemispherical tank is moved to the bottom of the spray nozzles by an electrically controlled push rod for immersion washing. Combined with the water flow vibration of the spray nozzles, the cleaning process is prevented from clogging.
It effectively prevents nozzle clogging, ensures the effect of exhaust gas treatment, and allows for timely detection and cleaning of water spray problems through the observation window, thus extending the service life of the equipment.
Smart Images

Figure CN223980322U_ABST
Abstract
Description
Technical Field
[0001] This patent relates to the field of waste gas treatment, specifically an alkali-free scrubbing tower. Background Technology
[0002] In waste gas treatment, the alkali-free scrubbing tower is a new type of gas purification equipment. Its principle is to use the solubility of water for certain pollutants to dissolve the pollutants in the waste gas into the water, thereby achieving the purpose of purifying the waste gas. For example, gases that are easily soluble in water, such as hydrogen chloride and ammonia, can be removed by water absorption.
[0003] This alkali-free scrubbing tower avoids the safety risks during alkali storage, transportation and use, as well as the environmental pollution that may be caused by alkali leakage. At the same time, it also reduces equipment corrosion problems caused by alkali residue and extends the service life of the equipment.
[0004] However, the nozzles used in existing alkali-free scrubbing towers are prone to clogging after a period of use due to prolonged contact with exhaust gas, which affects the exhaust gas treatment effect of the scrubbing tower. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this patent is to provide an alkali-free scrubbing tower.
[0006] The technical solution adopted by this patent to solve its technical problem is: an alkali-free washing tower, including a washing tower and a spray pipe, wherein a smoke inlet pipe is inserted and installed in the side wall of the washing tower, the spray pipe is installed in the inner wall of the washing tower, and a water inlet pipe is installed through the side wall of the washing tower at the end of the spray pipe.
[0007] A spray nozzle is inserted into the lower wall of the spray pipe, and a cleaning mechanism is installed on the side wall of the spray pipe. The cleaning mechanism includes a bracket, an elastic telescopic rod, a hemispherical trough, a clearance groove, and an inclined plate. The bracket is set in the inner cavity of the washing tower. One end of the elastic telescopic rod is installed on the upper wall of the bracket, and the other end of the elastic telescopic rod is installed on the hemispherical trough. The side wall of the hemispherical trough has a clearance groove, through which the spray nozzle can be inserted into the hemispherical trough. Inclined plates are installed on both the left and right side walls of the clearance groove, and the inclined plates can fit against the lower wall of the spray nozzle.
[0008] Furthermore, an electrically controlled push rod is installed on the side wall of the washing tower. The electrically controlled push rod is electrically connected to an external power source, and the output end of the electrically controlled push rod passes through the side wall of the washing tower and is connected to the support.
[0009] Furthermore, the elastic telescopic rod includes a main cylinder, a secondary cylinder, and a spring. The main cylinder is installed on the upper wall of the support. The secondary cylinder is slidably installed in the inner cavity of the main cylinder. The hemispherical groove is installed on the upper wall of the secondary cylinder. One end of the spring is installed on the lower wall of the secondary cylinder, and the other end of the spring is installed on the inner wall of the main cylinder.
[0010] Furthermore, it also includes a fan, which is electrically connected to an external power source. The output end of the fan is inserted into and installed on the side wall of the scrubbing tower, and the flue gas inlet pipe is installed at the input end of the fan.
[0011] Furthermore, a flue pipe is installed at the upper end of the scrubbing tower, and the flue pipe is connected to an external chimney.
[0012] Furthermore, the side wall of the washing tower is provided with an observation window, and a transparent glass plate is installed inside the observation window.
[0013] The beneficial effects of this patent are:
[0014] This device incorporates a cleaning mechanism within its scrubbing tower. When the hemispherical tank within the cleaning mechanism moves below the spray nozzles, it can immerse and clean the spray nozzles, thereby preventing clogging and ensuring the device's effectiveness in treating waste gas.
[0015] In addition, the device is equipped with an observation window on the side wall of the scrubbing tower, so that the staff can see the status of the spray nozzles directly and clean them in time when the water volume decreases or the water flow is not smooth. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this patent.
[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the washing tower in this patent.
[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the cleaning mechanism of this patent.
[0019] Explanation of reference numerals in the attached drawings: 1. Scrubber tower; 2. Spray pipe; 3. Smoke inlet pipe; 4. Water inlet pipe; 5. Spray nozzle; 6. Cleaning mechanism; 61. Support; 62. Elastic telescopic rod; 63. Hemispherical tank; 64. Clearance trough; 65. Inclined plate; 7. Electrically controlled push rod; 8. Fan; 9. Smoke exhaust pipe; 10. Observation window; 11. Transparent glass plate; 621. Main cylinder; 622. Secondary cylinder; 623. Spring. Detailed Implementation
[0020] The present patent is further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the patent. Furthermore, it should be understood that after reading the teachings of this patent, those skilled in the art can make various alterations or modifications to this patent, and these equivalent forms also fall within the scope defined by the appended claims.
[0021] See Figure 1 , Figure 2 , Figure 3 This is a schematic diagram of the structure of this patent. An alkali-free washing tower includes a washing tower 1 and a spray pipe 2. A smoke inlet pipe 3 is inserted into the side wall of the washing tower 1. The spray pipe 2 is installed on the inner wall of the washing tower 1. A water inlet pipe 4 is installed at the end of the spray pipe 2 through the side wall of the washing tower 1.
[0022] Its alkali-free scrubbing tower uses the solubility of water for certain pollutants to dissolve the pollutants in the waste gas, thereby achieving the purpose of purifying the waste gas. In this device, water is pumped into the water inlet pipe 4 by an external water pump, and then sprayed out through the spray nozzle 5 below the spray pipe 2, so that it comes into contact with the flue gas in the scrubbing tower 1 and adsorbs and dissolves the pollutants inside.
[0023] A spray nozzle 5 is inserted into the lower wall of the spray pipe 2. A cleaning mechanism 6 is installed on the side wall of the spray pipe 2. The cleaning mechanism 6 includes a bracket 61, an elastic telescopic rod 62, a hemispherical trough 63, a clearance groove 64, and an inclined plate 65. The bracket 61 is set in the inner cavity of the washing tower 1. One end of the elastic telescopic rod 62 is installed on the upper wall of the bracket 61. The other end of the elastic telescopic rod 62 is installed on the hemispherical trough 63. The side wall of the hemispherical trough 63 is provided with a clearance groove 64. The spray nozzle 5 can be inserted into the hemispherical trough 63 through the clearance groove 64. Inclined plates 65 are installed on both the left and right side walls of the clearance groove 64. The inclined plates 65 can fit against the lower wall of the spray nozzle 5.
[0024] To prevent the spray nozzles 5 from becoming clogged due to the adhesion of particles in the flue gas, this device is equipped with a cleaning mechanism 6 inside its scrubbing tower 1. When the staff finds that the water spray volume of the spray nozzles 5 has decreased or the water spray is not smooth, they can push the bracket 61 through the electric control push rod 7 to move the hemispherical tank 63 below the spray nozzles 5. At this time, the spray nozzles 5 will spray water into the hemispherical tank 63 to immerse the spray nozzles 5. At the same time, the water flow sprayed from the spray nozzles 5 will also cause the water in the hemispherical tank 63 to vibrate, thereby effectively improving the cleaning effect of the spray nozzles 5.
[0025] The inclined plate 65 allows the spray nozzle 5 to pass smoothly through the clearance groove 64 into the hemispherical groove 63.
[0026] An electrically controlled push rod 7 is installed on the side wall of the washing tower 1. The electrically controlled push rod 7 is electrically connected to an external power source. The output end of the electrically controlled push rod 7 passes through the side wall of the washing tower 1 and is connected to the bracket 61.
[0027] The elastic telescopic rod 62 includes a main cylinder 621, a secondary cylinder 622, and a spring 623. The main cylinder 621 is mounted on the upper wall of the bracket 61. The secondary cylinder 622 is slidably mounted in the inner cavity of the main cylinder 621. A hemispherical groove 63 is mounted on the upper wall of the secondary cylinder 622. One end of the spring 623 is mounted on the lower wall of the secondary cylinder 622. The other end of the spring 623 is mounted on the inner wall of the main cylinder 621.
[0028] To ensure that the spray nozzle 5 can be immersed in the water, the water level in the hemispherical tank 63 needs to be maintained. Therefore, the height of the clearance groove 64 must be higher than the lower wall of the spray nozzle 5. To allow the spray nozzle 5 to smoothly enter the hemispherical tank 63, the device positions the hemispherical tank 63 above the elastic telescopic rod 62. When the bracket 61 moves the hemispherical tank 63 and the inclined plate 65 contacts the spray nozzle 5, it will press the hemispherical tank 63 downward. At this time, the elastic telescopic rod 62 retracts. After the spray nozzle 5 moves into the hemispherical tank 63, the elastic telescopic rod 62 returns to its original position, so that the height of the clearance groove 64 is higher than the lower wall of the spray nozzle 5, ensuring that the spray nozzle 5 can be immersed in the water.
[0029] It also includes a fan 8, which is electrically connected to an external power source. The output end of the fan 8 is inserted into the side wall of the scrubbing tower 1, and the flue gas inlet pipe 3 is installed at the input end of the fan 8.
[0030] The upper end of the scrubbing tower 1 is equipped with a flue pipe 9, which is connected to an external chimney.
[0031] The side wall of the scrubbing tower 1 is provided with an observation window 10, and a transparent glass plate 11 is installed inside the observation window 10;
[0032] The observation window 10 allows staff to see the status of the spray nozzles 5 directly, enabling them to clean the spray nozzles 5 promptly when the water volume decreases or the water flow becomes uneven.
[0033] In this paper, the output end of the electric control push rod 7, the output end of the fan 8, and the connection between the spray pipe 2 and the scrubbing tower 1 are all equipped with sealing structures to prevent the leakage of flue gas in the scrubbing tower 1.
[0034] When this patent is working, the waste gas to be treated enters the scrubbing tower 1 through the inlet pipe 3 and the fan 8. Then, water is pumped into the inlet pipe 4 by an external water pump and sprayed out through the spray nozzle 5 below the spray pipe 2, so that it comes into contact with the flue gas in the scrubbing tower 1 and adsorbs and dissolves the pollutants inside. The treated flue gas will be discharged through the exhaust pipe 9 above the scrubbing tower 1.
[0035] When staff find that the water flow from the spray nozzle 5 is reduced or the water spray is not smooth, they can use the electric control push rod 7 to push the bracket 61, which will move the hemispherical tank 63 below the spray nozzle 5. At this time, the spray nozzle 5 will spray water into the hemispherical tank 63 to immerse the spray nozzle 5. At the same time, the water flow from the spray nozzle 5 will also cause the water in the hemispherical tank 63 to vibrate, thereby effectively improving the cleaning effect of the spray nozzle 5.
[0036] It will be apparent to those skilled in the art that this patent is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this patent. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this patent is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this patent. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A caustic-free scrubbing tower comprising a scrubbing tower (1) and a spray pipe (2), characterized in that: The side wall of the washing tower (1) is provided with a smoke inlet pipe (3), the inner wall of the washing tower (1) is provided with a spray pipe (2), and the end of the spray pipe (2) is provided with a water inlet pipe (4) penetrating through the side wall of the washing tower (1). The lower wall of the spray pipe (2) is provided with a spray nozzle (5), and the side wall of the spray pipe (2) is provided with a cleaning mechanism (6). The cleaning mechanism (6) comprises a support (61), an elastic telescopic rod (62), a hemispherical groove body (63), a gap slot (64) and an inclined plate (65). The support (61) is arranged in the inner cavity of the washing tower (1), one end of the elastic telescopic rod (62) is arranged on the upper wall of the support (61), the other end of the elastic telescopic rod (62) is provided with the hemispherical groove body (63), the side wall of the hemispherical groove body (63) is provided with the gap slot (64), the spray nozzle (5) can be inserted into the hemispherical groove body (63) through the gap slot (64), and the left and right side walls of the gap slot (64) are provided with the inclined plate (65). The inclined plate (65) can be attached to the lower wall of the spray nozzle (5).
2. A caustic wash tower according to claim 1, wherein: The side wall of the washing tower (1) is provided with an electric control push rod (7), the electric control push rod (7) is electrically connected with an external power supply, and the output end of the electric control push rod (7) penetrates through the side wall of the washing tower (1) and is connected with the support (61).
3. A caustic-free scrubbing tower according to claim 1, characterized in that: The elastic telescopic rod (62) comprises a main cylinder (621), a secondary cylinder (622) and a spring (623). The main cylinder (621) is arranged on the upper wall of the support (61), the secondary cylinder (622) is slidably arranged in the inner cavity of the main cylinder (621), the hemispherical groove body (63) is arranged on the upper wall of the secondary cylinder (622), one end of the spring (623) is arranged on the lower wall of the secondary cylinder (622), and the other end of the spring (623) is arranged on the inner wall of the main cylinder (621).
4. The caustic-free scrubbing tower of claim 1, wherein: A fan (8) is further arranged, the fan (8) is electrically connected with an external power supply, and the output end of the fan (8) is arranged in the side wall of the washing tower (1).
5. A caustic wash tower according to claim 1 wherein: The upper end of the washing tower (1) is provided with a smoke exhaust pipe (9), and the smoke exhaust pipe (9) is connected with an external chimney.
6. A caustic wash tower according to claim 1 wherein: The side wall of the washing tower (1) is provided with an observation window (10), and the observation window (10) is provided with a transparent glass plate (11).