Desulfurizing tower with cooling structure

Abstract

The utility model relates to a desulfurizing tower with a cooling structure, which comprises a tower body, the bottom of the tower body is conical, a plurality of flues are vertically arranged on the top surface of the tower body, a temperature control box is further mounted on one side of the flues, the top surface of the temperature control box is respectively communicated with the inside of each flue through a pipeline, and a spraying component is further arranged in the temperature control box; an existing desulfurization tower is modified, the smooth inner wall of the flue is changed into a spiral structure, so that internal flue gas forms a spiral conveying shape, the conveying speed of the flue gas is increased, negative pressure can be formed in the temperature control box communicated with the flue, and then the suction effect is automatically formed; therefore, when the flue gas is conveyed, water mist is automatically conveyed along with air, an additional power source is not needed, meanwhile, the spraying structure is an external device, contact between the flue gas and the spraying holes can be effectively avoided, blocking cannot be caused, and the cooling effect of the device on the flue gas is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization towers, in particular to a desulfurization tower with a cooling structure. Background Art

[0002] Dioxin, also known as dioxin, is a colorless, odorless, highly toxic, fat-soluble substance. Dioxin is actually an abbreviation for dioxins. It does not refer to a single substance, but two major categories of organic compounds with similar structures and properties that contain many congeners or isomers. Dioxins include 210 compounds. This type of substance is very stable, has a high melting point, is extremely difficult to dissolve in water, and can be dissolved in most organic solvents. It is a colorless, odorless, fat-soluble substance, so it is very easy to accumulate in the body and is seriously harmful to the human body.

[0003] In actual use, especially in the treatment of cremator flue gas, desulfurization is an indispensable step. The flue gas is desulfurized through a desulfurization tower. In order to effectively prevent the high-temperature cremator flue gas from easily synthesizing dioxins in the desulfurization tower, which is not conducive to the subsequent treatment of the flue gas, the existing desulfurization tower is generally equipped with an additional cooling device.

[0004] The existing method generally uses spraying to quickly cool down, that is, the nozzle is installed inside the flue, and during the transportation of high-temperature flue gas, atomized water is input into the flue gas. The atomized water evaporates quickly to absorb the temperature of the flue gas to achieve a cooling effect. However, in actual use, the flue gas contains a large amount of impurities, so it is very easy to adhere to the vicinity of the spray hole and cause blockage, resulting in the structure requiring frequent maintenance and being very inconvenient to use. Utility Model Content

[0005] Based on the above description, the utility model provides a desulfurization tower with a cooling structure to solve the shortcomings of the existing desulfurization tower for cooling the flue gas, which is very easy to be blocked by particulate impurities in the flue gas and requires frequent maintenance.

[0006] The utility model is realized by the following technical solutions:

[0007] A desulfurization tower with a cooling structure comprises a tower body, the bottom of the tower body is conical and a plurality of flues are vertically arranged on the top surface, a temperature control box is installed on one side of the plurality of flues, the top surface of the temperature control box is connected to the interior of each flue through a pipeline, and a spray assembly is also provided inside the temperature control box.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, each of the flues is a vertically arranged metal pipe, and a spiral guide groove is provided on the inner side wall of the flue.

[0010] Furthermore, an air inlet pipe is provided on the side wall of the flue, one end of the air inlet pipe extends inwardly and its port is connected to the guide groove, and the other end of the air inlet pipe extends obliquely downward to the outside of the flue and is provided with a connecting flange at the port.

[0011] Furthermore, the temperature control box is provided with openings on the top and four sides, wherein a pipe is provided at the opening on the top of the temperature control box, the ends of the pipe are sealed and connected through the connecting flanges at the ends of the air inlet pipe, and filter nets are provided on the openings on the four sides.

[0012] Furthermore, the spray assembly includes a spray pipe arranged transversely inside the temperature control box, and a plurality of ultrasonic atomizing nozzles are arranged at intervals on the spray pipe.

[0013] Furthermore, multiple flues are provided with water pipes, which are spirally coiled on the outer wall of the flue. Both ends of the temperature control box are provided with joints, and the ends of multiple water pipes are respectively gathered at two joint ends and connected, and the other ends of the two joints extend toward the inside of the temperature control box and are connected with both ends of the spray pipe.

[0014] Furthermore, each of the air inlet pipes is provided with a valve and a flow meter.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] 1. The present application is based on the modification of the existing desulfurization tower, and the smooth inner wall of the flue is changed into a spiral structure, so that the internal flue gas forms a spiral conveying shape, thereby enhancing the conveying speed of the flue gas. This rapid upward conveying method can form a negative pressure inside the temperature control box connected to the flue, thereby automatically forming a suction effect, and the spray assembly in the temperature control box generates a large amount of water mist. Therefore, when the flue gas is being transported, the water mist is automatically transported along with the air without the need for an additional power source. At the same time, the spray structure is an external device, which can not only effectively avoid the contact between the flue gas and the spray hole and will not cause blockage, but also the water pipe is coiled around the outer wall of the flue to form a secondary cooling effect, which greatly improves the cooling effect of the present application on the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a partial structural schematic diagram of the tower body in this embodiment;

[0018] Figure 2 Schematic diagram of the structure of the flue and the temperature control box in this embodiment;

[0019] Figure 3Schematic diagram of the front structure of the temperature control box in this embodiment;

[0020] Figure 4 Schematic diagram of the internal structure of the flue in this embodiment;

[0021] Among them: 1. tower body; 2. flue; 21. air inlet pipe; 22. valve; 3. temperature control box; 31. opening; 32. filter screen; 33. joint; 4. spray assembly; 41. spray pipe; 42. ultrasonic atomizing nozzle; 5. water pipe. DETAILED DESCRIPTION

[0022] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0024] Combination Figure 1-4 As shown, a desulfurization tower with a cooling structure includes:

[0025] The tower body 1 is the main body of the desulfurization tower, which is cylindrical in shape and has a conical top;

[0026] The flue 2 is vertically arranged at the top of the desulfurization tower and communicated with the inside of the tower body 1, and is used to transport the high-temperature flue gas inside the tower body 1, so as to cooperate with other equipment to separate and treat the flue gas and then discharge it;

[0027] The temperature control box 3 is a rectangular box structure, which is arranged on the top of the tower body 1 and close to the flue 2. It has a built-in spray component 4 and uses atomized water to cool the high-temperature flue gas to avoid secondary synthesis of dioxins in the desulfurization tower due to excessive temperature, which affects subsequent treatment.

[0028] Specifically, the flue 2 is a vertically arranged metal pipe body, and the pipe wall should be set to be thinner to facilitate the flue gas to diffuse heat to the surface. At the same time, a spiral guide groove is provided on the inner wall, and the groove wall is electroplated to enhance its anti-adhesion and anti-corrosion effects and extend its service life.

[0029] An air inlet pipe 21 is also provided on the side wall of the flue 2, one end of the air inlet pipe 21 extends inwardly into the flue 2, and its port is flush with the inner wall of the guide groove, and the other end of the air inlet pipe 21 extends obliquely downward to the outside of the flue 2, and a connecting flange is provided at the port so that an external pipe can be sealed and assembled therewith.

[0030] The temperature control box 3 is a rectangular metal box with openings 31 on the top and four sides. A pipe is provided on the opening 31 on the top. The pipe can be set as a corresponding multi-interface pipe according to the number of flues 2 actually used, and connected one-to-one with the air inlet pipe 21 on the flue 2 and sealed by a connecting flange. In addition, the openings 31 on the four sides are provided with filter screens 32 to filter particulate impurities and dust in the outside air to prevent scaling inside the pipe.

[0031] The spray assembly 4 consists of a spray pipe 41 arranged horizontally inside the temperature control box 3 and a plurality of ultrasonic atomizing nozzles 42 arranged at intervals on the spray pipe 41. The ultrasonic atomizing nozzles 42 can not only ensure that the particle size of the atomized water is extremely fine and can be easily transported to the inside of the flue 2 due to air circulation, but also require a relatively small water pressure, which is very convenient to use in conjunction with cooling.

[0032] A spiral water pipe 5 is wound around the outer wall of the flue 2 at the top of the tower body 1. The water pipe 5 can be made of aluminum pipe or other metal materials with good heat conduction effect, so that the flue 2 can be initially cooled by external contact during transportation. Joints 33 are also provided on both sides of the temperature control box 3. The ends of all the water pipes 5 are connected to the two joints 33 respectively, and the other ends of the two joints 33 extend toward the inside of the box and are connected to the two ends of the spray pipe 41.

[0033] In addition, in order to facilitate the temperature control of the flue 2, a valve 22 should be set at its air inlet pipe 21, and the flow rate of the atomized water can be controlled by opening and closing the valve 22. At the same time, a flow meter is set here to record the usage of the atomized water.

[0034] In this embodiment, the flue gas is accelerated by the conical structure at the top, and the circulation space gradually becomes smaller. At the same time, the spiral guide groove is used to accelerate the flow rate of the high-temperature flue gas, and the high-temperature flue gas is automatically stirred and mixed during the circulation process. The air that flows upward rapidly will pull the air inside the temperature control box 3 that circulates with the flue 2, so that a negative pressure state is formed inside the temperature control box 3, thereby forming a suction traction force. The outside air enters the temperature control box 3 and carries a large amount of atomized water into the flue 2. The atomized water evaporates quickly and absorbs the surrounding heat, and finally forms a cooling effect on the flue gas. Moreover, since the high-temperature flue gas is automatically stirred and mixed during the rising process, there is no need to worry about factors such as uneven spraying of atomized water. This structure not only effectively avoids the blocking problem caused by direct contact between the spray structure and the flue gas, enabling it to operate efficiently for a long time and reducing the number of maintenance times, but also the cooling structure does not require an additional power source, and the modified structure is also extremely simple, which effectively reduces the modification cost.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the technical solution of the embodiments of the utility model.

Claims

1. A desulfurization tower with a cooling structure, characterized in that: The tower body (1) comprises a tower body (1), the bottom of the tower body (1) is conical and a plurality of flues (2) are vertically arranged on the top surface, a temperature control box (3) is also installed on one side of the plurality of flues (2), the top surface of the temperature control box (3) is connected to the inside of each flue (2) through a pipeline, and a spray assembly (4) is also arranged inside the temperature control box (3); Each of the flues (2) is a vertically arranged metal pipe, and a spiral guide groove is also provided on the inner side wall of the flue (2); An air intake pipe (21) is provided on the side wall of the flue (2), one end of the air intake pipe (21) extends inwardly and has its port connected to the guide groove, while the other end of the air intake pipe (21) extends obliquely downward to the outside of the flue (2) and is provided with a connecting flange at the port.

2. According to the desulfurization tower with a cooling structure as described in claim 1, it is characterized in that: The temperature control box (3) is provided with openings (31) at the top and four sides, wherein a pipe is provided at the opening (31) at the top of the temperature control box (3), the end of the pipe is sealedly connected via a connecting flange at the end of the air inlet pipe (21), and filter screens (32) are provided on the openings (31) at the four sides.

3. According to the desulfurization tower with a cooling structure as described in claim 1, it is characterized in that: The spray assembly (4) comprises a spray pipe (41) arranged transversely inside the temperature control box (3), and a plurality of ultrasonic atomizing nozzles (42) are arranged at intervals on the spray pipe (41).

4. A desulfurization tower with a cooling structure according to claim 3, characterized in that: A plurality of the flues (2) are each provided with a water pipe (5), the water pipe (5) being spirally wound on the outer wall of the flue (2), the two ends of the temperature control box (3) being respectively provided with joints (33), the ends of the plurality of water pipes (5) being respectively gathered at the ends of two joints (33) and being connected, and the other ends of the two joints (33) extending toward the interior of the temperature control box (3) and being connected to the two ends of the spray pipe (41).

5. The desulfurization tower with a cooling structure according to claim 1, characterized in that: Each of the air inlet pipes (21) is also provided with a valve (22) and a flow meter.

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