Cyclone separation device

Abstract

The utility model provides a cyclone separation device, and relates to the technical field of gas-solid phase separation, the cyclone separation device comprises a shell, a flow guide chamber and a separation chamber which are communicated with each other are arranged in the shell from left to right, the connection part of the flow guide chamber and the separation chamber is narrower at first and then wider, and a gas inlet pipeline communicated with the flow guide chamber is arranged on the shell; a cyclone flow guide assembly enabling gas-phase materials to move forwards in a spiral mode is arranged in the flow guide chamber, a gas outlet pipeline communicated with the separation chamber is arranged on the side, opposite to the gas inlet pipeline, of the shell, a collecting assembly is arranged at the bottom of the shell, and the collecting assembly is connected with a discharging pipe. The axial movement speed is increased by utilizing the Venturi effect, impurities settle to the collecting assembly due to centrifugal force and are discharged through the discharging pipe, and light-molecular-weight gas-phase materials enter next equipment through the gas outlet pipeline, so that the gas-phase impurities are effectively separated, accumulation of the impurities in subsequent liquid nitrogen production is reduced, and the quality of liquid chlorine is improved.

Description

Technical Field

[0001] This application relates to the field of gas-solid phase separation technology, and more specifically, to a cyclone separator. Background Technology

[0002] The chlor-alkali industry mainly produces caustic soda, chlorine, and hydrogen. As a basic chemical raw material, chlorine has a wide range of applications and a large demand. Facing the ever-increasing chemical needs, producing high-quality chlorine is an important task. In the wet electrolysis of sodium chloride solution to produce caustic soda, the generated chlorine contains a certain amount of moisture, which needs to be dried with concentrated sulfuric acid. The existing process mainly involves washing, cooling, water mist collection, primary drying, secondary drying, final drying, and acid mist collection of the wet chlorine from the ion-exchange membrane electrolyzer before it enters a turbine for compression. The concentrated sulfuric acid collected in the acid mist collector enters the final dryer. Newly added concentrated sulfuric acid overflows from the final dryer sequentially into the secondary dryer and then the primary dryer. A sulfuric acid circulation pump on the primary dryer sends the dilute acid solution to a dilute sulfuric acid tank for storage.

[0003] Generally, concentrated sulfuric acid is transported and stored in carbon steel containers, which over time produces "acid sludge," primarily composed of ferric sulfate. When using concentrated sulfuric acid containing this "acid sludge" to dry chlorine, a certain amount of solid impurities accumulates. Adding concentrated sulfuric acid to the final dryer easily leads to the accumulation of "acid sludge" impurities in the dryer. In actual production, the concentrated sulfuric acid collected by the acid mist collector contains a significant amount of "acid sludge" impurities, and the acid liquid appears turbid in the sight glass. The original process directly discharged the concentrated sulfuric acid from the acid mist collector into the final dryer, exacerbating the accumulation of acid sludge in the dryer. Over time, the acid sludge in the final dryer cannot be discharged and continues to accumulate, creating a vicious cycle. Ultimately, the acid sludge particles will pass through the acid mist collector and remain in the production pipelines and even in the finished liquid chlorine, affecting product quality.

[0004] To remove or reduce the content of "acid sludge" in chlorine pipelines or finished liquid chlorine, the traditional approach is to add basket filters to the production pipeline. Large particles can be filtered out by adjusting the filter pore size. However, the separation effect is poor for small-diameter impurities that can penetrate acid mist collectors. This part of "acid sludge" is very easy to accumulate in subsequent pipelines, ultimately affecting the quality of finished liquid chlorine. Summary of the Invention

[0005] The purpose of this application is to provide a cyclone separator that can reduce the accumulation of impurities in subsequent liquid nitrogen production pipelines and equipment, thereby improving the quality of the liquid chlorine product.

[0006] This application provides a cyclone separator, including a housing. Inside the housing, from left to right, are interconnected guide chambers and separation chambers. The connection between the guide chambers and the separation chambers is narrower at the beginning and wider at the end. An air inlet pipe communicating with the guide chambers is provided on the housing. A cyclone guide assembly is provided inside the guide chambers to cause the gaseous material to advance in a spiral manner. An air outlet pipe communicating with the separation chambers is provided on the side of the housing opposite to the air inlet pipes. A collection assembly is provided at the bottom of the housing to collect impurities separated from the gaseous material in the separation chambers. The collection assembly is connected to a discharge pipe.

[0007] Furthermore, the cyclone guide assembly includes a circular hoop, an impeller, and a spherical guide shroud. The impeller is fixed to the guide chamber by the circular hoop, and the spherical guide shroud is fixed to the middle of the impeller and located in front of the impeller.

[0008] Furthermore, the bottom of the housing is provided with a funnel portion that communicates with the separation chamber, and the collecting assembly is located at the bottom of the funnel portion.

[0009] Furthermore, the collection assembly includes a collection pipe, a first valve, and a second valve. The upper end of the collection pipe is connected to the funnel section through the first valve, and the lower end of the collection pipe is connected to the discharge pipe through the second valve.

[0010] Furthermore, two flange sight glasses are disposed opposite each other at the upper part of the collection pipe.

[0011] Furthermore, the collection pipe is equipped with two spray pipes, the spray ends of which correspond one-to-one with the flange sight glass, and the inlet ends of the spray pipes extend to the outside of the collection pipe.

[0012] Furthermore, the separation chamber is provided with at least one flushing assembly, which includes a flushing pipe and a shower head. The shower head is located at the water outlet of the flushing pipe, and the water outlet of the shower head points towards the inner wall of the housing. The water inlet of the flushing pipe extends to the outside of the housing.

[0013] Furthermore, a mounting bracket is fixedly provided at the bottom of the housing.

[0014] The beneficial effects of this utility model are:

[0015] This invention uses a cyclone guide assembly to rotate the gaseous material entering the guide chamber from the inlet pipe at a certain speed and propel it forward. The material enters the separation chamber in a spiral manner. The connection between the guide chamber and the separation chamber is narrow at first and then widens. The Venturi effect is used to accelerate the axial movement rate of the gaseous material. The gaseous material carries solid impurities and moves forward spirally in the shell. Due to centrifugal force, the impurities adhere tightly to the inner wall of the shell and rotate forward before settling to the collection assembly at the bottom of the shell. Finally, they are discharged through the discharge pipe. The lighter gaseous material enters the next processing equipment through the outlet pipe. This effectively separates impurities in the gas phase, reduces the accumulation of impurities in subsequent liquid nitrogen production pipelines and equipment, and improves the quality of the liquid chlorine product. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 These are schematic diagrams of structures in some embodiments of this application;

[0018] Figure 2 This is a left view in some embodiments of this application;

[0019] Figure 3 This is a schematic diagram of the structure of the cyclone guide assembly in some embodiments of this application;

[0020] The reference numerals in the attached figures are as follows:

[0021] 1. Shell; 11. Flow guide chamber; 12. Separation chamber; 13. Funnel section; 2. Air inlet pipe; 3. Cyclone flow guide assembly; 31. Circular hoop; 32. Impeller; 33. Spherical flow guide shroud; 4. Air outlet pipe; 5. Collection assembly; 51. Collection pipe; 52. First valve; 53. Second valve; 6. Discharge pipe; 7. Flange sight glass; 8. Spray pipe; 9. Flushing assembly; 91. Flushing pipe; 92. Shower head; 10. Mounting bracket. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Specific implementation examples:

[0029] like Figure 1As shown, this application provides a cyclone separator, including a housing 1. Inside the housing 1, from left to right, are interconnected guide chambers 11 and separation chambers 12. The connection between the guide chambers 11 and separation chambers 12 is narrower at the beginning and wider at the end. An inlet pipe 2 communicating with the guide chambers 11 is provided on the housing 1. A cyclone guide assembly 3 is provided inside the guide chambers 11 to cause the gaseous material to advance in a spiral manner. An outlet pipe 4 communicating with the separation chambers 12 is provided on the side of the housing 1 opposite to the inlet pipe 2. A collection assembly 5 is provided at the bottom of the housing 1. The collection assembly 5 is used to collect impurities separated from the gaseous material in the separation chambers 12. The collection assembly 5 is connected to a discharge pipe 6. The cyclone guide assembly 3 allows the impurities from the inlet material to be discharged in a spiral manner. The gaseous material entering the guide chamber 11 through pipe 2 rotates at a certain speed and propels forward, spiraling into the separation chamber 12. The connection between the guide chamber 11 and the separation chamber 12 is narrow at first and then widens, utilizing the Venturi effect to accelerate the axial movement of the gaseous material. The gaseous material, carrying solid impurities, spirals forward within the shell 1. Due to centrifugal force, the impurities adhere tightly to the inner wall of the shell 1, rotate forward, and settle to the collection component 5 at the bottom of the shell 1. Finally, they are discharged through the discharge pipe 6. The lighter gaseous material enters the next processing equipment through the gas outlet pipe 4, effectively separating impurities from the gas phase, reducing the accumulation of impurities in subsequent liquid nitrogen production pipelines and equipment, and improving the quality of the liquid chlorine product.

[0030] like Figure 1 and Figure 3 As shown, the cyclone guide assembly 3 includes a circular hoop 31, an impeller 32, and a spherical guide shroud 33. The impeller 32 is fixed inside the guide chamber 11 by the circular hoop 31. Specifically, the impeller 32 is fixed inside the circular hoop 31, and the outside of the circular hoop 31 is fixedly connected to the inner wall of the housing 1. The spherical guide shroud 33 is fixed in the middle of the impeller 32 and located in front of the impeller 32. When gaseous material enters the guide chamber 11 from the inlet pipe 2, the impeller 32 can guide the airflow to rotate at a certain speed. The curved shape of the spherical guide shroud 33 can reduce the airflow resistance, reduce the loss of kinetic energy of the flowing gas phase, and reduce the accumulation of solid impurities.

[0031] like Figure 1 and Figure 2 As shown, the bottom of the shell 1 is provided with a funnel section 13 that communicates with the separation chamber 12. The collection component 5 is located at the bottom of the funnel section 13, which makes it easier for the separated impurities to converge to the bottom of the shell 1 under the action of gravity. When the gaseous material is separated in the separation chamber 12, the impurities rotate forward close to the inner wall of the shell 1 due to centrifugal force. The funnel section 13 provides a concentrated flow channel for the impurities, guiding the impurities to settle smoothly into the collection component 5.

[0032] like Figure 1 and Figure 2As shown, the collection component 5 includes a collection pipe 51, a first valve 52, and a second valve 53. The upper end of the collection pipe 51 is connected to the funnel section 13 through the first valve 52, and the lower end of the collection pipe 51 is connected to the discharge pipe 6 through the second valve 53. By controlling the opening and closing states of the first valve 52 and the second valve 52, the collection and discharge process of impurities can be flexibly controlled. When it is necessary to collect impurities, the first valve 52 can be opened to allow impurities to enter the collection pipe 51 from the funnel section 13. When the impurities in the collection pipe 51 accumulate to a certain level and need to be discharged, the first valve 52 can be closed and the second valve 53 can be opened to discharge the impurities through the discharge pipe 6.

[0033] like Figure 1 and Figure 2 As shown, two flange sight glasses 7 are installed opposite each other on the upper part of the collection pipe 51. Through the flange sight glasses 7, the operator can clearly see the degree of accumulation of impurities in the collection pipe 51, the flow state, and whether there are any blockages or other problems, so as to take corresponding measures to deal with them.

[0034] like Figure 1 and Figure 2 As shown, the collection pipe 51 is equipped with two spray pipes 8. The spray end of the spray pipe 8 corresponds to the flange sight glass 7 one by one. The water inlet end of the spray pipe 8 extends to the outside of the collection pipe 51. When impurities adhere to the flange sight glass 7 and make the flange sight glass 7 blurry, affecting the observation effect, pulse cleaning fluid is introduced into the spray pipe 8 to rinse the flange sight glass 7 and ensure that the flange sight glass 7 always remains clear.

[0035] like Figure 1 and Figure 2As shown, at least one flushing assembly 9 is provided in the separation chamber 12. The flushing assembly 9 includes a flushing pipe 91 and a shower head 92. The shower head 92 is located at the outlet end of the flushing pipe 91, and the water outlet direction of the shower head 92 points towards the inner wall of the housing 1. The inlet end of the flushing pipe 91 extends to the outside of the housing 1. In this embodiment, there are three flushing assemblies 9, which are arranged in a ring. Under normal circumstances, the second valve 53 is closed and the first valve 52 is open. Solid impurities from the separation chamber 12 accumulate in the collection pipe 51. The pulse flushing fluid is passed through the flushing pipe 91 and then sprayed out through the shower head 92 to clean the solid phase adhering to the inner wall of the housing 1. Impurities are flushed to reduce the amount of solid impurities adhering to the inner wall of the shell 1, reduce the corrosion of the inner wall of the shell 1 by impurities, and improve the service life of the equipment. When the amount of solid impurities in the collection pipe 51 reaches a certain amount, that is, when it reaches the flange sight glass 7, the impurities in the collection pipe 51 are discharged. During discharge, the first valve 52 is closed and the second valve 53 is opened. Then, pulse cleaning fluid is introduced into the spray pipe 8 until the flange sight glass 7 is cleaned and the impurities are discharged through the discharge. After cleaning is completed, the second valve 53 is closed and the first valve 52 is opened. Pulse flushing fluid is introduced into the flushing pipe 91 to clean the impurities that have accumulated on the inner wall of the shell 1 during the time when the impurities in the collection pipe 51 are discharged.

[0036] like Figure 1 The bottom of the housing 1 is fixed with a mounting bracket 10, which provides stable support for the entire cyclone separator.

[0037] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cyclone separator, characterized in that: The device includes a housing, within which, from left to right, are interconnected guide chambers and separation chambers. The connection between the guide chambers and the separation chambers is narrower at the beginning and wider at the end. The housing is provided with an air inlet pipe communicating with the guide chambers. The guide chambers are provided with a cyclone guide assembly that causes the gaseous material to advance in a spiral manner. On the side of the housing opposite to the air inlet pipe, there is an air outlet pipe communicating with the separation chambers. The bottom of the housing is provided with a collection assembly for collecting impurities separated from the gaseous material in the separation chambers. The collection assembly is connected to a discharge pipe.

2. The cyclone separator according to claim 1, characterized in that: The cyclone guide assembly includes a circular hoop, an impeller, and a spherical guide shroud. The impeller is fixed to the guide chamber by the circular hoop, and the spherical guide shroud is fixed to the middle of the impeller and located in front of the impeller.

3. The cyclone separator according to claim 1, characterized in that: The bottom of the housing is provided with a funnel section that communicates with the separation chamber, and the collection component is located at the bottom of the funnel section.

4. The cyclone separator according to claim 3, characterized in that: The collection assembly includes a collection pipe, a first valve, and a second valve. The upper end of the collection pipe is connected to the funnel section through the first valve, and the lower end of the collection pipe is connected to the discharge pipe through the second valve.

5. A cyclone separator according to claim 4, characterized in that: Two flange sight glasses are installed opposite each other at the top of the collection pipe.

6. A cyclone separator according to claim 5, characterized in that: The collection pipe is equipped with two spray pipes, the spray ends of which correspond one-to-one with the flange sight glass, and the inlet ends of the spray pipes extend to the outside of the collection pipe.

7. A cyclone separator according to claim 1, characterized in that: The separation chamber is equipped with at least one flushing component, which includes a flushing pipe and a shower head. The shower head is located at the outlet of the flushing pipe, and the water outlet of the shower head points towards the inner wall of the housing. The inlet of the flushing pipe extends to the outside of the housing.

8. A cyclone separator according to claim 7, characterized in that: A mounting bracket is fixedly provided at the bottom of the housing.

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