Quenching tower for flue gas and dust separation
By designing a three-stage tower structure and cooling components, the clogging problem of cyclone separators in the treatment of high-temperature and high-humidity flue gas was solved, achieving efficient dust separation and cooling effects and ensuring stable equipment operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-03-20
AI Technical Summary
When cyclone separators process high-temperature, high-humidity, and high-viscosity flue gas, the flue gas absorbs water vapor, which adheres to the pipes and dust collector chambers, causing blockages, affecting the dust removal effect, and reducing the separation efficiency.
The tower body is designed as a three-stage structure, including a first-stage, second-stage, and third-stage tower body. The cooling components are located in the first-stage tower body. High-temperature flue gas is cooled by atomized water, and the flue gas flow rate and heat transfer process are controlled by multiple diameter changes. Combined with guide vanes, dust settling and separation are achieved.
This effectively prevents equipment blockage, improves the cooling efficiency of high-temperature flue gas and the dust separation effect, and ensures the stable operation of the equipment.
Smart Images
Figure CN224009304U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flue gas dust separation, specifically to a quench tower for flue gas dust separation. Background Technology
[0002] With the acceleration of industrialization, the amount of flue gas generated by industries such as metallurgy, thermal power generation, and waste incineration is increasing daily. This flue gas contains large amounts of dust, as well as harmful substances such as sulfur dioxide, nitrogen oxides, and heavy metals. In order to reduce the harm of these pollutants to the environment and human health, countries around the world have formulated strict environmental emission standards, requiring effective purification and treatment of flue gas.
[0003] Currently, cyclone separators are commonly used to separate flue gas and dust mixtures. A cyclone separator contains a cylindrical container with an inlet pipe connected to the top or side. When the dust-laden flue gas enters the cyclone separator at a certain speed, the design of the inlet pipe ensures that the flue gas enters the cylinder tangentially, creating a high-speed rotating airflow inside the separator. This generates rotational motion, and the gas moves in a circular motion within the cylinder. Due to their larger mass, the dust particles are subjected to a centrifugal force pointing towards the cylinder wall during the rotation, thus achieving the separation of flue gas and dust.
[0004] However, when cyclone separators handle high-temperature, high-humidity, and high-viscosity flue gas, the flue gas absorbs water vapor, which adheres to the pipes and dust collector chambers, causing blockages, affecting the dust removal effect, and resulting in reduced separation efficiency and equipment blockage problems. Utility Model Content
[0005] Based on this, the purpose of this utility model is to provide a quench tower for flue gas dust separation, which aims to solve the problem that when the current cyclone separator processes high-temperature, high-humidity, and high-viscosity flue gas, the flue gas absorbs water vapor and adheres to the pipes and dust collector cavity, causing blockage, affecting the dust removal effect, and resulting in reduced separation efficiency and equipment blockage.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a quench tower for flue gas dust separation, the quench tower for flue gas dust separation includes a tower body, a cooling component disposed on the tower body, and a collection component disposed at the end of the tower body away from the cooling component;
[0007] The tower body includes a first-stage tower body, a second-stage tower body, and a third-stage tower body arranged sequentially, with the cooling assembly disposed on the first-stage tower body;
[0008] The cooling assembly is fixed to the primary tower body and extends into the primary tower body;
[0009] The first-stage tower body is provided with a high-temperature flue gas inlet, the diameter of the high-temperature flue gas inlet is smaller than the diameter of the first-stage tower body, and the diameters of the first-stage tower body, the second-stage tower body and the third-stage tower body are different, so that the high-temperature flue gas is cooled by the cooling assembly, and the dust is separated from the flue gas, and the dust is collected in the collecting assembly at the end of the third-stage tower body away from the second-stage tower body.
[0010] In conclusion, the instant cooling tower for separating flue gas dust has the advantages that the diameter of the first-stage tower body is larger than the diameter of the high-temperature flue gas inlet, the cooling assembly is arranged in the first-stage tower body, the high-temperature flue gas needs to contact the atomized water sprayed by the cooling assembly after entering the first-stage tower body to achieve the cooling purpose, the speed of the flue gas is reduced instantly after the diameter is changed, and the transverse and longitudinal mass transfer and heat transfer reaction time of the high-temperature flue gas and the atomized water is increased.
[0011] According to an aspect of the above technical solution, the cooling assembly comprises a first fixing member connected to the first-stage tower body, and a spraying member movably connected to the first fixing member, one end of the spraying member penetrates through the first fixing member and is arranged in the first-stage tower body.
[0012] According to an aspect of the above technical solution, the spraying member is provided with a mounting edge in the radial direction, and the spraying member is movably connected to the fixing member through the mounting edge.
[0013] According to an aspect of the above technical solution, the spraying member is arranged in the radial direction of the first-stage tower body.
[0014] According to an aspect of the above technical solution, the diameter of the second-stage tower body is smaller than the diameter of the first-stage tower body, and the two ends of the second-stage tower body are respectively provided with a first transition section for connecting with the first-stage tower body and a second transition section for connecting with the third-stage tower body.
[0015] According to an aspect of the above technical solution, the diameters of the first transition section and the second transition section are both larger than the diameter of the second-stage tower body.
[0016] According to an aspect of the above technical solution, the inner wall of the third-stage tower body is provided with a plurality of guide vanes, and the outer wall of the third-stage tower body is provided with a high-temperature flue gas outlet.
[0017] According to an aspect of the above technical solution, the diameter of the main body part of the third-stage tower body is smaller than the diameter of the second-stage tower body.
[0018] According to an aspect of the above technical solution, the collecting assembly comprises a second fixing member arranged at an end of the third tower body away from the second tower body, and a collecting member movably connected with the second fixing member, the collecting member facing the port of the third tower body for collecting dust.
[0019] The additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0020] Fig. 1 FIG. 1 is a structural schematic diagram of a quench tower for separating flue dust according to an embodiment of the present application;
[0021] Fig. 2 FIG. 2 is a structural schematic diagram of a cooling assembly according to an embodiment of the present application.
[0022] Explanation of symbols of components in drawings:
[0023] Tower body 100, primary tower body 110, high-temperature flue gas inlet 111, secondary tower body 120, first transition section 121, second transition section 122, tertiary tower body 130, high-temperature flue gas outlet 131, guide vane 132, cooling assembly 200, first fixing member 210, spraying member 220, mounting edge 221, collecting assembly 300, second fixing member 310, collecting member 320. DETAILED DESCRIPTION
[0024] In order to make the purpose, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. The drawings show several embodiments of the present application. However, the present application can be realized 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.
[0025] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", "upper", "lower", and similar expressions as used herein are only intended to illustrate the purpose and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application.
[0026] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through intermediate medium, can be two element inside communication. For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances. The term "and / or" used in this paper includes any and all combinations of one or more related listed items.
[0027] Please refer to Figs. 1-2 , it is the structure schematic diagram of a kind of smoke dust separation quenching tower provided in an embodiment of the utility model, the smoke dust separation quenching tower includes tower body 100, cooling assembly 200 being located on the tower body 100, and collection assembly 300 being located at the end of the tower body 100 away from the cooling assembly 200, wherein:
[0028] In order to overcome the equipment blockage problem existing when separating smoke and dust mixed gas using cyclone separator at present, the tower body 100 is used instead of cylindrical container in the application. In the embodiment, the tower body 100 includes first-stage tower body 110, second-stage tower body 120 and third-stage tower body 130 connected in sequence and arranged vertically, the first-stage tower body 110 is arranged at the uppermost, and the third-stage tower body 130 is arranged at the lowermost.
[0029] In order to facilitate high-temperature smoke to enter, high-temperature smoke inlet 111 is arranged at the top of the first-stage tower body 110, and the diameter of the high-temperature smoke inlet 111 is smaller than the diameter of the first-stage tower body 110, so that when the high-temperature smoke enters, it is transitioned from the high-temperature smoke inlet 111 with smaller diameter to the first-stage tower body 110 with larger diameter, the diffusion rate of the high-temperature smoke is reduced, and thus the time for the high-temperature smoke to be cooled by the cooling assembly 200 is increased, avoiding insufficient cooling of the high-temperature smoke and the atomized water existing in the form of water in the flue gas and being discharged from the system without being vaporized.
[0030] Further, in order to cool the high-temperature smoke just entering the first-stage tower body 110, a plurality of cooling assemblies 200 are arranged on the first-stage tower body 110, the cooling assemblies 200 are fixed on the first-stage tower body 110 and penetrate into the first-stage tower body 110, to spray atomized water to the high-temperature smoke for contact with the high-temperature smoke to achieve the purpose of cooling. Using atomized water to cool down increases the contact area with the high-temperature smoke on one hand, and on the other hand, the atomized water floats for a longer time, increasing the contact time with the high-temperature smoke, and thus improving the cooling effect.
[0031] The cooling assembly 200 comprises a first fixing member 210 connected to the primary tower body 110 and a spraying member 220 movably connected to the first fixing member 210. One end of the spraying member 220 penetrates into the primary tower body 110 and is arranged radially along the primary tower body 110. The spraying member 220 is provided with a mounting edge 221 radially, and the spraying member 220 is movably connected to the first fixing member 210 through the mounting edge 221. The mounting edge 221 can be movably connected to the first fixing member 210 through a fastener. In order to enhance the cooling effect, a plurality of cooling assemblies 200 can be arranged axially along the primary tower body 110 to ensure that the high-temperature flue gas is fully cooled.
[0032] The arrangement of the cooling assembly 200 increases the transverse and longitudinal mass transfer and heat transfer reaction time of the high-temperature flue gas and the atomized water. The high-temperature flue gas is rapidly cooled, and the atomized water is not in the form of water in the flue gas and discharged from the system due to insufficient contact time and insufficient reduction of the flue gas temperature. At the same time, the atomized water sprayed by the cooling assembly 200 after the diameter change will not contact the tower wall during the transverse movement without contacting the flue gas, avoiding the formation of liquid water before contacting the high-temperature flue gas, which leads to the phenomenon that the water flows along the pipe wall and cannot achieve the expected cooling effect.
[0033] Further, the diameter of the secondary tower body 120 is smaller than that of the primary tower body 110. The two ends of the secondary tower body 120 are respectively provided with a first transition section 121 for connecting to the primary tower body 110 and a second transition section 122 for connecting to the tertiary tower body 130. The diameters of the first transition section 121 and the second transition section 122 are greater than that of the secondary tower body 120. During the process of entering the secondary tower body 120 from the primary tower body 110, the high-temperature flue gas and the atomized water fully transfer mass and heat. The vaporized water, flue gas, and particulate matter exist in the flue gas. The tower diameter is reduced again, which increases the flue gas flow rate and continues to transfer mass and heat to meet the time requirement and cooling requirement of the flue gas passing through the quenching tower.
[0034] According to one aspect of the above technical solution, the main body of the tertiary tower body 130 has a diameter smaller than that of the secondary tower body 120. The inner wall of the tertiary tower body 130 is provided with a plurality of guide vanes 132, and the outer wall is provided with a high-temperature flue gas outlet 131. During the process of the high-temperature flue gas entering the tertiary tower body 130 from the secondary tower body 120, the tower diameter is increased again to reduce the instantaneous wind speed of the flue gas discharged from the tower body 100, increase the dust settling time in the flue gas, and increase the longitudinal guide vanes 132 to capture the solid particulate matter when it contacts the tower wall, thereby achieving dust settling and separation in the flue gas. In this embodiment, the guide vanes 132 can be arranged in an S shape, which increases the dust settling area and efficiently captures the solid particulate matter, thereby improving the dust collection capacity.
[0035] The settled dust is collected by a collecting assembly 300 arranged at the bottom of the third tower body 130, the collecting assembly 300 comprising a second fixing member 310 arranged at the end of the third tower body 130 away from the second tower body 120, and a collecting member 320 movably connected with the second fixing member 310, the collecting member 320 and the second fixing member 310 can also be movably connected by fasteners, and the collecting member 320 is opposite to the port of the third tower body 130 for collecting the dust. The bottom of the collecting member 320 is also provided with a dust outlet for guiding the collected dust out of the system for treatment.
[0036] In summary, the quenching tower for separating flue gas dust according to the present application has the advantages that the diameter of the first tower body is greater than that of the high-temperature flue gas inlet, and the cooling assembly is arranged in the first tower body. After the high-temperature flue gas enters the first tower body, it needs to contact the atomized water sprayed by the cooling assembly to achieve the purpose of cooling. By increasing the diameter, the speed of the flue gas can be reduced instantly, and the transverse and longitudinal mass transfer and heat transfer reaction time of the high-temperature flue gas and the atomized water can be increased. The high-temperature flue gas can be rapidly cooled, and at the same time, the atomized water is not vaporized and exists in the flue gas in the form of water to be discharged from the system due to insufficient contact time and insufficient reduction of the flue gas temperature. At the same time, the atomized water sprayed by the cooling assembly after increasing the diameter will not contact the tower wall during transverse movement without contacting the flue gas, avoiding the formation of liquid water before contacting the high-temperature flue gas, which leads to the phenomenon that the water flows along the pipe wall and cannot achieve the expected cooling effect. By continuously changing the diameter three times, the dispersion rate of the high-temperature flue gas is controlled, and at the same time, the high-temperature flue gas can be sufficiently cooled to achieve a better dust settling and separating effect.
[0037] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0038] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims
1. A quench tower for flue gas dust separation, characterized in that, The flue gas dust separation quench tower includes a tower body, a cooling assembly disposed on the tower body, and a collection assembly disposed at the end of the tower body away from the cooling assembly; The tower body includes a first-stage tower body, a second-stage tower body, and a third-stage tower body arranged sequentially, with the cooling assembly disposed on the first-stage tower body; The cooling assembly is fixed to the primary tower body and extends into the primary tower body; The first-stage tower body is equipped with a high-temperature flue gas inlet, the diameter of which is smaller than that of the first-stage tower body. The diameters of the first-stage tower body, the second-stage tower body, and the third-stage tower body are different, so that the high-temperature flue gas can be cooled by a cooling component. The different diameters are designed to achieve flue gas dust separation, and the dust is collected in a collection component at the end of the third-stage tower body away from the second-stage tower body.
2. The quench tower for flue gas dust separation according to claim 1, characterized in that, The cooling assembly includes a first fixing member connected to the primary tower body and a spray member movably connected to the first fixing frame. One end of the spray member passes through the first fixing member and is installed in the primary tower body.
3. The quench tower for flue gas dust separation according to claim 2, characterized in that, The spraying component has a mounting edge along the radial direction, and the spraying component is movably connected to the fixing component through the mounting edge.
4. The quench tower for flue gas dust separation according to claim 3, characterized in that, The spray element is arranged radially along the primary tower body.
5. The quench tower for flue gas dust separation according to claim 1, characterized in that, The diameter of the secondary tower body is smaller than that of the primary tower body, and its two ends are respectively provided with a first transition section for connecting with the primary tower body and a second transition section for connecting with the tertiary tower body.
6. The quench tower for flue gas dust separation according to claim 5, characterized in that, The diameters of the first transition section and the second transition section are both larger than the diameter of the secondary tower body.
7. The quench tower for flue gas dust separation according to claim 1, characterized in that, The inner wall of the three-stage tower is provided with several guide vanes, and its outer wall is also provided with a high-temperature flue gas outlet.
8. The quench tower for flue gas dust separation according to claim 7, characterized in that, The diameter of the main body of the third-level tower is smaller than the diameter of the second-level tower.
9. The quench tower for flue gas dust separation according to claim 1, characterized in that, The collection component includes a second fixing member located at one end of the third-stage tower body away from the second-stage tower body, and a collection member movably connected to the second fixing member. The collection member faces the port of the third-stage tower body for collecting dust.