Cyclone spray tower

Abstract

The utility model relates to a technical field of spray tower, especially cyclone spray tower, it includes: tower body, tower body includes air inlet, gas outlet and discharge gate, spray device, spray device sets up in the upper portion inside tower body, negative pressure fan, sets up in the position of air inlet close to tower body, liquid storage pool, sets up below discharge gate, wherein, spray device includes: spray pipe frame, fixedly set up in tower body, spray pipeline, spray pipeline rotation sets up on spray pipe frame, and the top of spray pipeline is equipped with liquid inlet, liquid inlet pipeline, liquid inlet pipeline one end lies in the tower body outside, one end rotation is connected in liquid inlet, drive arrangement no.

Description

Technical Field

[0001] This utility model relates to the technical field of spray towers, and more particularly to a cyclone spray tower. Background Technology

[0002] With the rapid development of industrial manufacturing, industries such as chemical, metallurgical, spraying, and building materials generate large amounts of industrial waste gas containing dust, organic pollutants, or acidic and alkaline substances during production. Direct emission of such waste gas not only severely pollutes the atmospheric environment but also harms human health. Therefore, waste gas treatment that meets environmental standards has become a crucial aspect of industrial production. Currently, in the field of industrial waste gas treatment, spray towers have become one of the most widely used devices due to their relatively simple structure, low cost, and ability to achieve gas-liquid contact purification. A traditional spray tower typically includes a tower body, spray pipes fixed within the tower body, a storage tank, and a fan. Its working principle involves spraying an absorbent liquid (such as acid-base neutralizing liquid or organic waste gas absorbent) into the tower body through spray holes on the spray pipes. This allows the absorbent liquid to contact the rising waste gas, removing pollutants through physical dissolution or chemical reaction. The treated gas is discharged from the top of the tower, while the absorbent liquid falls into the storage tank for recycling or is treated before being discharged. However, existing spray towers still have many technical shortcomings in practical applications, making it difficult to meet the requirements for efficient and stable waste gas purification: Insufficient gas-liquid contact leads to low purification efficiency: Traditional spray towers mostly have fixed spray pipes with fixed spray direction and coverage, which can easily create spray dead zones inside the tower. This results in the absorption liquid and waste gas not being able to make full contact. Especially for waste gases with high concentrations or complex compositions, the purification efficiency is often difficult to meet the standards, and some unreacted pollutants are discharged with the gas, still posing environmental risks. High energy consumption and operating costs: To compensate for insufficient spray coverage, existing technologies often increase the contact probability by increasing the amount of absorbent, increasing the spray pressure, or expanding the tower volume. This not only increases the energy consumption of the circulating water pump, but also leads to an increase in the capacity requirement of the storage tank, a significant increase in reagent consumption and equipment footprint, and a heavier burden on the company's operating costs. In summary, existing spray towers suffer from defects in structural design, such as incomplete spray coverage, low gas-liquid contact efficiency, high energy consumption costs, and poor system compatibility. These shortcomings make it difficult to meet the current industrial waste gas treatment requirements for high efficiency, energy saving, and stable operation. Therefore, developing a cyclone spray tower that can achieve spray coverage without dead angles and full gas-liquid contact has become an urgent technical problem to be solved in this field. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned technical problems by providing a cyclone spray tower that achieves the technical effect of spraying without dead angles.

[0004] In view of this, the present invention provides a cyclone spray tower, comprising: The tower body includes an air inlet, an air outlet, and a material outlet; A spraying device is installed in the upper part of the tower body; The negative pressure fan is installed on the tower body near the air inlet; A liquid storage tank is located below the discharge port; The spraying device includes: The spray pipe rack is fixedly installed inside the tower. The spray pipe is rotatably mounted on the spray pipe rack, and the top of the spray pipe is equipped with a liquid inlet; The liquid inlet pipe has one end placed outside the tower body and the other end rotatably connected to the liquid inlet. Drive unit one is fixedly mounted on the spray pipe frame and is used to drive the spray pipe to rotate.

[0005] Furthermore, the spray pipes include: A longitudinal tube, with an inlet at the top; Horizontal tubes are evenly distributed around the circumference of the longitudinal tubes. The circumferential pipe is connected at the outermost end of the transverse pipe. Spray hole one is located at the bottom of the horizontal pipe and the circumferential pipe.

[0006] Furthermore, the air intake direction of the air inlet is tangent to the rotation direction of the negative pressure fan.

[0007] Furthermore, four air intakes are evenly distributed around the circumference.

[0008] Furthermore, at least two transverse pipes and two circumferential pipes are provided along the longitudinal pipe.

[0009] Furthermore, the second spray hole is located on the outer periphery of the circumferential pipe.

[0010] The beneficial effects of this utility model are: 1. This utility model rotates the spray pipe 8 so that the liquid sprayed from the spray hole covers the entire interior of the tower body 1, allowing the liquid and gas to come into full contact, thus improving the purification effect.

[0011] 2. This invention forms a liquid curtain when rotating, and a spiral liquid curtain when rotating, which makes the liquid coverage area larger and the contact between gas and liquid more complete. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the air inlet direction of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a bottom view of the spray pipe of this utility model.

[0013] The markings in the diagram are as follows: 1. Tower body; 2. Air inlet; 3. Air outlet; 4. Material outlet; 5. Spraying device; 6. Spraying pipe frame; 7. Negative pressure fan; 8. Spraying pipe; 9. Liquid inlet; 10. Drive device one; 11. Liquid inlet pipe; 12. Longitudinal pipe; 13. Transverse pipe; 14. Circumferential pipe; 15. Spray hole one; 16. Spray hole two. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0015] Example 1: This embodiment provides a cyclone spray tower, including: Tower body 1, which includes an air inlet 2, an air outlet 3, and a material outlet 4; Spraying device 5, which is installed in the upper part of the tower body 1; Negative pressure fan 7 is installed on tower body 1 near air inlet 2; A liquid storage tank is located below the discharge port 4; The spray device 5 includes: The spray pipe support 6 is fixedly installed inside the tower body 1; Spray pipe 8 is rotatably mounted on spray pipe frame 6, and the top of spray pipe 8 is provided with liquid inlet 9; Liquid inlet pipe 11, one end of which is placed outside the tower body 1, and the other end is rotatably connected to the liquid inlet 9; The drive unit 10 is fixedly mounted on the spray pipe frame 6 and is used to drive the spray pipe 8 to rotate.

[0016] A cyclone spray tower is a high-efficiency waste gas purification device that combines cyclone centrifugal separation with spray washing. It is widely used in the treatment of industrial waste gases (such as dust, organic waste gases, acid and alkali waste gases, etc.). By enhancing the contact efficiency of the airflow through rotation, the purification effect is improved. The tower body 1 is usually a cylindrical (with a conical bottom) sealed container. The specific material of the tower body 1 is selected according to the characteristics of the treated medium, such as PP material, fiberglass, or corrosion-resistant carbon steel. The cylindrical structure reduces airflow resistance and ensures stable cyclone formation. Inlet 2 is located in the lower middle part of tower body 1, and outlet 3 is located at the top of tower body 1. Both inlet 2 and outlet 3 can be connected to the inlet and outlet pipes via flanges. The negative pressure fan 7 can operate on the principle of an induced draft fan, with the impeller installed inside tower body 1 near the inlet. The impeller generates an internal cyclone. The impeller structure is similar to existing cyclone spray towers; specific details are omitted. A discharge port 4 is located at the lower end of tower body 1. Discharge port 4 can be open or sealed. Below discharge port 4 is a storage tank that collects the sprayed liquid and can be pumped back to the spraying device 5 for reuse via a circulating water pump. A dosing port is located on the upper channel of the storage tank (adding reagents according to the type of pollutant, such as adding NaOH for treating acidic waste gas). Solution for treating organic waste gas with absorbent); slag discharge port (to periodically discharge settled dust or waste residue); level gauge and overflow port (to control the liquid level and prevent liquid overflow).

[0017] A demister can be added above the spray device 5 to remove fine droplets carried in the purified gas (to prevent water mist from causing secondary pollution or equipment corrosion). Common types include baffle demisters and wire mesh demisters, which use the principle of airflow impact or inertial separation to capture droplets.

[0018] The spray device 5 includes: A spray pipe support 6 is fixedly installed inside the tower body 1. At least two spray pipe supports 6 are provided, one positioned at the upper middle of the spray pipe 8 and the other at the lower end of the spray pipe 8. Each spray pipe support 6 has at least three support rods connected to the pipe wall of the tower body 1, and a connecting part is provided at the intersection of the three support rods. A hole for installing the spray pipe 8 is provided in the middle of the connecting part. The spray pipe 8 is installed on the connecting part via a bushing and bearing. An inlet 9 is provided at the rotation center of the top of the spray pipe 8. An inlet pipe 11 penetrates the tower body 1 and is welded and fixed to the tower body 1. One end of the inlet pipe 11 is located outside the tower body 1, and the other end is rotatably connected to the inlet 9. The connection can be made using a socket joint, and a sealing ring can be provided between the inlet pipe 11 and the spray pipe 8. A drive device 10 is installed on the lower spray pipe support 6. The drive device 10 uses a waterproof and radiation-proof drive motor. The wires can be installed on the support rods or through channels within the support rods.

[0019] The spray pipe 8 can be horizontal or vertical, and spray holes are provided around the perimeter of the spray pipe 8.

[0020] The above structure allows the spray pipe 8 to rotate, causing the liquid sprayed from the spray holes to cover the entire interior of the tower body 1, ensuring full contact between the liquid and gas and resulting in better purification.

[0021] Example 2: This embodiment provides a cyclone spray tower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0022] Sprinkler pipe 8 includes: The longitudinal tube 12 has an inlet 9 at its top; A transverse tube 13 is evenly distributed around the periphery of the longitudinal tube 12. The circumferential pipe 14 is connected to the outermost end of the transverse pipe 13; Spray hole 15 is located at the bottom of horizontal pipe 13 and circumferential pipe 14.

[0023] The spray pipe 8 includes a longitudinal pipe 12 without spray holes. Six horizontally arranged transverse pipes 13 are evenly distributed around the periphery of the longitudinal pipe 12. A circumferential pipe 14 is provided on the outermost side of the transverse pipes 13. The circumferential pipe 14 is connected to the outermost end of the transverse pipes 13. The longitudinal pipe 12, transverse pipes 13 and reversing pipes are all connected. Spray holes 15 for spraying are provided at the bottom of the transverse pipes 13 and the circumferential pipe 14. They are evenly distributed and equidistant. When rotating, they form a liquid curtain and a spiral liquid curtain, which makes the liquid coverage area larger and the contact between gas and liquid more complete.

[0024] The air intake direction of the air inlet 2 is tangent to the rotation direction of the negative pressure fan 7.

[0025] This makes it easier for exhaust gas to enter the fan impeller, reducing the energy consumption of the negative pressure fan.

[0026] There are four air inlets evenly distributed around the circumference of the air intake 2.

[0027] During use, several air inlets 2 are used for air intake according to the actual situation. Multiple air inlets 2 (usually distributed tangentially along the circumference of the tower body 1) can allow the exhaust gas to enter the tower from different directions, avoiding the "airflow deviation" caused by a single air inlet 2 - that is, a single air intake may cause uneven airflow distribution in the tower, with local flow velocities that are too high or too low, disrupting the symmetry of the cyclone; multiple tangential air inlets 2 can make the airflow rotate evenly along the tower wall, enhancing the stability and rotation intensity of the cyclone (more uniform centrifugal force), ensuring that pollutants such as dust and droplets are effectively thrown towards the tower wall, improving separation efficiency; the atomized droplets sprayed by the spray device 5 form a "gas-liquid contact zone" in the tower, and multiple air inlets 2 can allow the exhaust gas to enter this zone from different positions, resulting in more sufficient contact with the droplets.

[0028] Multiple air inlets 2 can be independently controlled by valves to open or close or adjust their opening degree. When the air volume is high, all air inlets 2 are open to meet the demand for large processing capacity. When the air volume is low, some air inlets 2 are closed to avoid the airflow speed being too low, which would weaken the cyclone (insufficient centrifugal force), or the flow rate being too high, which would cause energy waste.

[0029] This adaptability makes the system more adaptable to dynamic loads and reduces operating costs.

[0030] Example 3: This embodiment provides a cyclone spray tower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0031] At least two transverse pipes 13 and circumferential pipes 14 are provided along the longitudinal pipe 12.

[0032] It can increase the spray density.

[0033] Spray hole 2 16 is located on the outer periphery of the circumferential pipe 14.

[0034] Spray hole 2 16 is located on the outer periphery of the circumferential pipe 14 to wash away solid impurities that are thrown onto the inner wall surface of the tower body 1 by centrifugal force.

[0035] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms fall within the scope of protection of this application.

Claims

1. A cyclone spray tower, characterized in that, include: The tower body (1) includes an air inlet (2), an air outlet (3) and a material outlet (4); Spraying device (5) is installed in the upper part of the tower body (1); A negative pressure fan (7) is installed on the tower body (1) near the air inlet (2); The liquid storage tank is located below the discharge port (4); The spray device (5) includes: The spray pipe rack (6) is fixedly installed inside the tower body (1); Spray pipe (8) is rotatably mounted on spray pipe rack (6), and the top of spray pipe (8) is provided with liquid inlet (9). The liquid inlet pipe (11) has one end placed outside the tower body (1) and the other end rotated to be connected inside the liquid inlet (9); Drive device 1 (10) is fixedly installed on the spray pipe frame (6) and is used to drive the spray pipe (8) to rotate.

2. The cyclone spray tower according to claim 1, characterized in that, The sprinkler pipe (8) includes: A longitudinal tube (12) is provided with an inlet (9) at the top of the longitudinal tube (12); A transverse tube (13) is evenly distributed around the periphery of the longitudinal tube (12); A circumferential pipe (14) is connected to the outermost end of the transverse pipe (13); Spray hole 1 (15) is located at the bottom of the horizontal pipe (13) and the circumferential pipe (14).

3. The cyclone spray tower according to claim 1, characterized in that, The air intake direction of the air inlet (2) is tangent to the rotation direction of the negative pressure fan (7).

4. A cyclone spray tower according to claim 3, characterized in that, The air inlet (2) has four inlets evenly distributed around its circumference.

5. A cyclone spray tower according to claim 2, characterized in that, At least two transverse pipes (13) and circumferential pipes (14) are provided along the longitudinal pipe (12).

6. A cyclone spray tower according to claim 2, characterized in that, Spray hole 2 (16) is located on the outer periphery of the circumferential pipe (14).

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