Separated spraying dust removal tower

Abstract

The utility model discloses a separated spray dust removal tower which comprises a tower body, a plurality of groups of spray pipes and spray heads, a sedimentation tank arranged at the bottom of the tower body, a spray pump communicated with the spray pipes, and spray isolation components arranged between the adjacent spray pipes. The spraying isolation assembly comprises an annular water collection tank, a water baffle arranged above the through hole, a water drainage pipe communicated with the water collection tank and a plurality of supporting pieces, the water collection tank is used for collecting spraying liquid on the upper layer, the water baffle is arranged above the through hole in a suspended mode and prevents the spraying liquid from directly dripping to the lower layer, and the water drainage pipe introduces the collected liquid into the sedimentation tank. By means of the structure, liquid physical isolation of different spraying intervals is achieved, meanwhile, vertical and smooth flowing of flue gas is kept, the dust removal efficiency is improved, interlayer interference is avoided, and the device has the advantages of being simple in structure, high in adaptability, stable in operation and the like and is suitable for various industrial flue gas treatment scenes.

Description

Technical Field

[0001] This utility model relates to the field of spray dust removal tower technology, and in particular to a partitioned spray dust removal tower. Background Technology

[0002] A spray dust collector is a wet dust collection device based on the principle of gas-liquid mass transfer, widely used in industrial flue gas treatment. Its working principle involves multiple sets of spray pipes installed inside the tower to spray high-pressure water mist into the dust-laden flue gas. Through sufficient contact between the water mist and the flue gas, dust is captured and settled. Existing spray dust collectors typically have 3 to 4 sets of spray pipes arranged along the height of the tower, equipped with several spray heads. Water is pressurized and delivered to the spray pipes by a spray pump, thereby achieving dust removal.

[0003] However, in actual operation, due to the vertical structure of the tower, the water mist from the upper spray layer easily drips downwards under gravity, creating water droplet turbulence. This phenomenon adversely affects the lower spray area. Especially in the lower area near the flue gas inlet, which should have high dust removal efficiency, the interference from the upper water droplets leads to uneven spraying and reduced dust removal efficiency. Furthermore, the existing structure makes it difficult to precisely control the spray parameters (such as flow rate and chemical agent concentration) of different spray layers, thus limiting the device's ability to operate under complex conditions. Utility Model Content

[0004] The purpose of this invention is to provide a partitioned spray dust removal tower to effectively block liquid transfer and mutual interference between spray layers.

[0005] This utility model is achieved using the following technical solution: a partitioned spray dust removal tower, characterized in that: the tower body has an airflow channel running vertically through it; multiple sets of spray pipes and spray heads are disposed within the tower body; a sedimentation tank is disposed at the bottom of the tower body; a spray pump is connected to the spray pipes; and a spray isolation assembly is disposed between adjacent spray pipes to prevent spray liquid from seeping down and interfering with the lower area. The spray isolation assembly includes: a ring-shaped water collection tank with a through hole in the middle for flue gas to pass through, the outer ring wall of the water collection tank being sealed to the inner wall of the tower body; a baffle plate disposed above the through hole and connected to the water collection tank through multiple supporting members, the baffle plate being suspended to block the through hole and prevent spray liquid from passing through the through hole; and a drain pipe, one end of which is connected to the water collection tank to discharge the liquid collected in the water collection tank into the sedimentation tank. This structure achieves physical isolation of the liquid in the spray zone without affecting the vertical airflow, thereby improving dust removal efficiency and device stability.

[0006] Furthermore, the baffle plate has a double-arc structure, with the upper surface being an upward-convex arc and the lower surface being a downward-convex arc, designed to guide water droplet flow and reduce airflow resistance. This design helps improve liquid drainage efficiency, optimizes airflow channels, enhances the mixing effect of flue gas and water mist, and improves dust removal efficiency.

[0007] Furthermore, the baffle plate has a hollow circular disc structure to reduce its weight and improve structural stability. This structural form not only enhances overall stability but also extends the service life of the component, making it particularly suitable for extreme operating conditions such as high temperature and high humidity.

[0008] Furthermore, the baffle plate and the water collection tank are radially overlapped by multiple support members, with an overlap length of 2-5 cm. This structure effectively prevents liquid from splashing or leaking at the edges, while enhancing the baffle plate's fixing strength and anti-disturbance capability, providing good vibration and impact resistance during system operation.

[0009] Furthermore, the inner ring wall of the water collection tank is inclined towards the through hole at an angle of 40° to 60°. This design allows the liquid guided by the baffle plate to concentrate more quickly at the bottom of the tank, preventing liquid stagnation and improving liquid collection efficiency.

[0010] Furthermore, the top opening of the water collection tank is at the same horizontal plane, and its depth gradually decreases along the direction leading to the drain pipe. This asymmetrical design ensures that the liquid naturally converges to the drain outlet, preventing local water accumulation or blockage in the water collection tank and maintaining efficient drainage and clean operation of the system.

[0011] Furthermore, the sedimentation tank includes a primary sedimentation tank, a secondary sedimentation tank, and a tertiary sedimentation tank, with each sedimentation tank connected via an overflow outlet. The inlet of the spray pump is connected to the tertiary sedimentation tank, and the outlet is connected to each set of spray pipes. This structure improves the purity of the spray solution, extends the system's service life, reduces operating costs, and enhances the device's green and environmentally friendly characteristics.

[0012] The beneficial effects of the partitioned spray dust removal tower described in this utility model include:

[0013] The spray isolation component effectively blocks the interference of upper water droplets on the lower spray zone, ensuring the independence of each spray chamber and improving spray efficiency. This component can be directly installed on the existing tower structure, requiring minimal modification space and inexpensive implementation. Multiple spray pumps and independent pipelines allow for separate control of the spray flow rate and chemical concentration (e.g., NaOH solution concentration) for each group, achieving multi-layer spray zone control. A graded sedimentation tank structure enables multi-stage settling and reuse of dust removal water, improving environmental performance and extending system lifespan. The use of upper and lower double-arc or hollow baffle plates improves flue gas conduction capacity while reducing structural load, adapting to long-term stable operation under complex conditions. The inclined flow-guiding water collection tank structure and asymmetrical drainage design ensure clean and efficient drainage within the system, reducing maintenance frequency and costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a spray dust removal tower in the prior art;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the spray isolation component;

[0018] Figure 4 for Figure 2 Schematic diagram of the cross section along the AA direction;

[0019] Figure 5 This is a schematic diagram showing the flow direction of flue gas and dust-laden water droplets during the use of this utility model.

[0020] In the diagram, 1-tower body; 2-sedimentation tank; 3-spray pipe; 4-spray isolation component; 5-water collection tank; 6-water baffle; 7-support component; 8-drainage pipe; 9-spray pump; 10-smoke inlet pipe; 11-smoke outlet pipe; 12-spray head; 201-main body of protective plate; 202-mounting hole; 203-screening hole. Detailed Implementation

[0021] 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Example 1

[0023] like Figure 2-4 As shown, a partitioned spray dust removal tower includes a tower body 1, multiple sets of spray pipes 3 disposed within the tower body 1, several spray heads 12 disposed on the spray pipes 3, a sedimentation tank 2 disposed at the bottom of the tower body 1, a spray pump 9 connected to the spray pipes 3, and a spray isolation assembly 4 disposed between adjacent spray pipes 3.

[0024] The spray isolation component 4 includes a drain pipe 8, a water collection tank 5, a baffle plate 6, and multiple support members 7. The water collection tank 5 is an annular tank structure with a through hole in the center. The through hole is used to allow flue gas to pass through from bottom to top without affecting the normal upward flow of flue gas in the tower body 1.

[0025] The baffle plate 6 is located directly above the central through hole of the water collection tank 5. It is connected to the inner ring wall of the water collection tank 5 through multiple support members 7, so that the baffle plate 6 is suspended above the central hole of the water collection tank 5 to prevent the sprayed liquid from dripping directly through the central hole.

[0026] The outer ring wall of the water collection tank 5 is sealed to the inner wall of the tower body 1, which can effectively prevent liquid leakage. The inner ring wall of the water collection tank 5 is fixedly connected to the baffle plate 6 by multiple support members 7. After dust-laden water droplets are formed in the tower body, some fall directly into the water collection tank 5, while others first fall on the baffle plate 6 and flow along its surface into the water collection tank 5, and finally are discharged into the sedimentation tank 2 through the drain pipe 8.

[0027] The above structure effectively prevents liquid interaction between the spray chambers, avoids spray water from dripping directly into the lower chambers and causing dust removal interference, and achieves separation and control of the spray area without obstructing the flue gas rising channel, thereby improving the dust removal effect. It has good structural rationality and practicality. Example 2

[0028] This embodiment is a further optimization based on Embodiment 1, providing a partitioned spray dust removal tower, including a tower body 1, multiple sets of spray pipes 3 disposed within the tower body 1, several spray heads 12 disposed on the spray pipes 3, a sedimentation tank 2 disposed at the bottom of the tower body 1, a spray pump 9 connected to the spray pipes 3, and a spray isolation assembly 4 disposed between adjacent spray pipes 3. The spray isolation assembly 4 includes a drain pipe 8, a water collection tank 5, a baffle plate 6, and multiple support members 7.

[0029] In this embodiment, the sedimentation tank 2 includes a primary sedimentation tank 201, a secondary sedimentation tank 202, and a tertiary sedimentation tank 203. Adjacent sedimentation tanks are connected through an overflow port 204. The bottom of the tower body 1 and the outlet of the drain pipe 8 are both connected to the primary sedimentation tank 201. The inlet of the spray pump 9 is connected to the tertiary sedimentation tank 203, and the outlet is connected to multiple sets of spray pipes 3, thereby realizing multi-stage purification and recycling of dust removal water.

[0030] Specifically, by setting up a graded sedimentation tank structure, dust-laden water droplets enter the primary sedimentation tank 201 through the water collection tank 5 and the drainage pipe 8 for preliminary sedimentation, and then overflow to the secondary sedimentation tank 202 and the tertiary sedimentation tank 203 in sequence, gradually settling dust impurities in the water, improving water purity, which is conducive to extending the service life of the spray system and improving the dust removal effect.

[0031] In addition, by connecting the spray pump 9 to the spray pipe 3 respectively, it is convenient to independently adjust the spray flow rate and spray liquid concentration (such as NaOH solution concentration) of each group of spray pipes 3 according to the dust removal intensity required by different chambers, thereby further improving the accuracy of zoning control and meeting the needs of flue gas treatment in multiple scenarios.

[0032] This embodiment has the advantages of high dust removal efficiency, energy saving and environmental protection, and stable operation, and is particularly suitable for industrial working environments with complex flue gas composition or large changes in dust concentration. Example 3

[0033] This embodiment is a further optimization based on embodiment two, providing a partitioned spray dust removal tower, the overall structure of which includes a tower body 1, a spray pipe 3, a spray head 12, a sedimentation tank 2, a spray pump 9, and a spray isolation component 4.

[0034] The spray isolation assembly 4 includes a drain pipe 8, a water collection tank 5, a baffle plate 6, and multiple support members 7. The water collection tank 5 is an annular tank structure with a through hole in the center. A baffle plate 6 is installed above the through hole to prevent the spray liquid from passing directly through the through hole. The baffle plate 6 is fixedly connected to the inner annular wall of the water collection tank 5 through the support members 7 to form a suspended shield structure.

[0035] In this embodiment, the upper surface of the water baffle 6 is an upward-convex arc surface, and the lower surface is a downward-convex arc surface, forming an upper and lower hyperboloid structure, which is beneficial for the diversion of water droplets and the conduction of airflow.

[0036] Specifically, the upper convex arc surface allows the spray liquid to quickly accumulate on the surface of the baffle plate and be guided to the edge to flow into the water collection tank 5, avoiding excessive liquid accumulation; the lower convex arc surface can reduce the resistance of the baffle plate to the rising flue gas, keep the flue gas flowing smoothly upward, improve the mixing efficiency of flue gas and water mist, and thus enhance the overall dust removal effect.

[0037] In addition, the double-arc structure effectively reduces the overall weight of the baffle plate 6, reduces the burden on the support component 7, and improves the structural stability and durability, making it particularly suitable for long-term operation under complex conditions such as high temperature and high humidity.

[0038] This embodiment maintains the system's liquid-gas separation effect while further optimizing airflow organization and structural load, enhancing system reliability, and is suitable for industrial emission control scenarios with higher dust removal efficiency requirements. Example 4

[0039] This embodiment is a further optimization based on Embodiment 3, specifically:

[0040] The water baffle 6 is a circular disc-shaped structure with an internal cavity formed by the upper and lower arc surfaces. The overall shape is hollow, balancing structural strength and weight reduction. This structure can effectively reduce weight while ensuring load-bearing strength, thereby reducing the load pressure on the support component 7 and improving the stability and service life of the entire spray isolation assembly 4.

[0041] In addition, the baffle plate 6 and the water collection tank 5 are arranged coaxially, that is, the center of the baffle plate 6 is aligned with the annular center hole of the water collection tank 5, which ensures that the droplets are naturally guided into the water collection tank 5 from the edge of the baffle plate 6, and there will be no overflow or deviation.

[0042] Furthermore, a radial overlap structure is formed between the baffle plate 6 and the water collection trough 5, with an overlap length of 2-5 cm, effectively preventing water droplets from splashing or leaking at the edges. This overlap not only enhances the water droplet collection efficiency but also further stabilizes the position of the baffle plate, improving its resistance to flue gas disturbance.

[0043] Through the structural optimization of this embodiment, not only are the mechanical properties of the baffle plate improved, but the integrity and stability of water droplet collection are also enhanced, making the isolation of the spray liquid between each spray layer more thorough, eliminating the problem of liquid backflow or dripping to the lower layer, and significantly improving the control accuracy and performance of the entire tower dust removal system. Example 5

[0044] This embodiment is a further optimization based on Embodiment 4, specifically:

[0045] The inner ring wall of the water collection tank 5 is inclined inward at an angle of 40° to 60°, forming a flow guide structure that gradually narrows towards the center. This helps to quickly concentrate and guide the liquid guided down by the baffle plate 6 to the bottom of the tank. This inclined design not only enhances the water collection effect but also reduces splashing caused by water droplets rebounding due to gravity or airflow disturbance, improving the integrity and efficiency of water mist collection.

[0046] Furthermore, the top opening of the water collection tank 5 is at the same horizontal plane, but its depth gradually decreases along the drainage direction, that is, it gradually becomes shallower from the side away from the drain pipe 8 to the side closer to the drain pipe. The lowest point is provided with a drain hole and connected to the drain pipe 8 to form a natural gravity drainage channel.

[0047] This asymmetrical depth design effectively avoids localized water accumulation in the collection tank, ensuring that all incoming water droplets can flow to the lowest point and be discharged, effectively preventing the growth of odors or the accumulation of pollutants inside the tank, and ensuring the long-term clean operation of the system.

[0048] Through meticulous design of the gradually varying tilt angle and depth of the water collection tank, integrated control of water droplet collection, concentration, and discharge in the spray isolation component 4 is achieved, further improving the operating efficiency and maintenance convenience of the dust removal system. This optimized solution has a simple structure and is flexible in modification, making it suitable for small-scale upgrades of existing tower structures.

[0049] The above embodiments describe the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Modifications and variations made by those skilled in the art without departing from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A partitioned spray dust removal tower, characterized in that, The tower body (1) has an airflow channel running vertically through it; multiple sets of spray pipes (3) and spray heads (12) are installed inside the tower body (1); a sedimentation tank (2) is installed at the bottom of the tower body (1); a spray pump (9) is connected to the spray pipes (3); and a spray isolation assembly (4) is installed between adjacent spray pipes (3) to prevent the spray liquid from seeping down and interfering with the lower layer area. The spray isolation assembly (4) includes: a ring-shaped water collection tank (5) with a through hole in the middle for flue gas to pass through, and the outer ring of the water collection tank (5) The tank wall is sealed to the inner wall of the tower body (1); the baffle plate (6) is set above the through hole and connected to the water collection tank (5) through multiple support members (7). The baffle plate (6) blocks the through hole in a suspended form to prevent the spray liquid from passing through the through hole; the drain pipe (8) is connected at one end to the water collection tank (5) to discharge the liquid collected in the water collection tank (5) into the sedimentation tank (2). The structure realizes the physical isolation of the liquid in the spraying area, while not affecting the vertical passage of the airflow, thereby improving the dust removal efficiency and device stability.

2. The partitioned spray dust removal tower according to claim 1, characterized in that, The water baffle (6) has a double arc surface structure, with the upper surface being an upward-convex arc surface and the lower surface being a downward-convex arc surface, which is used to guide the flow of water droplets and reduce airflow resistance.

3. A partitioned spray dust removal tower according to claim 2, characterized in that, The water baffle (6) is a hollow circular disc structure to reduce its weight and improve structural stability.

4. A partitioned spray dust removal tower according to claim 1, characterized in that, The water baffle (6) and the water collection tank (5) are connected radially by multiple support members (7), with an overlap length of 2 to 5 cm.

5. A partitioned spray dust removal tower according to claim 1, characterized in that, The inner ring wall of the water collection tank (5) is inclined toward the through hole, with an inclination angle of 40° to 60°.

6. A partitioned spray dust removal tower according to claim 1, characterized in that, The top opening of the water collection tank (5) is at the same horizontal plane, and its depth gradually decreases along the direction leading to the drain pipe (8).

7. A partitioned spray dust removal tower according to claim 1, characterized in that, The sedimentation tank (2) includes a primary sedimentation tank (201), a secondary sedimentation tank (202) and a tertiary sedimentation tank (203). Each sedimentation tank is connected through an overflow port (204). The inlet of the spray pump (9) is connected to the tertiary sedimentation tank (203), and the outlet is connected to each set of spray pipes (3).

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