Bypass device for cleaning gypsum cyclone
By installing a bypass filtration system at the hydrocyclone inlet, fine particulate matter is intercepted and cleaned online using a filter screen, which solves the problem of hydrocyclone clogging and enables stable operation and efficient production of the equipment.
Patent Information
- Application Number
- CN202422942675.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Hydrocyclones are prone to clogging, which affects equipment stability and operating efficiency, increases maintenance costs, and the causes of clogging are varied and difficult to predict and handle.
An integrated filtration device is installed at the feed inlet of the hydrocyclone to filter the slurry through a bypass system. Fine particles are intercepted by the filter screen, and the filter screen is cleaned without stopping the machine to reduce the risk of clogging.
It effectively reduces the risk of hydrocyclone clogging, ensures continuous operation, improves production efficiency, extends equipment life, simplifies the cleaning process, and reduces maintenance costs.
Smart Images
Figure CN223556231U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hydrocyclone equipment technical field, concretely relates to a bypass device for cleaning gypsum hydrocyclone. BACKGROUND
[0002] In the power station desulfurization system, the gypsum hydrocyclone and the waste water hydrocyclone are mainly responsible for processing the complex fluid produced in the desulfurization process, ensuring the stable operation of the system and the achievement of the environmental protection emission standard. These hydrocyclones effectively separate the solid particles and the liquid in the fluid through the centrifugal force, which is of great significance to maintain the desulfurization efficiency, reduce the equipment wear and protect the environment.
[0003] However, in the actual application process of the hydrocyclone, the hydrocyclone often occurs the problem of hydrocyclone blockage, and the high-frequency occurrence of the blockage phenomenon not only seriously affects the continuous operation ability of the desulfurization system, but also increases the maintenance cost and the operation difficulty, and affects the stable operation of the equipment. The causes of the hydrocyclone blockage are various, including but not limited to the mixing of hard foreign matters such as silicon carbide fragments and plastic fragments, the accumulation of fine sand particles, gypsum clumping, the falling of rubber particles and other sundries. Because the causes of the blockage are various, the problem of the hydrocyclone blockage is difficult to be effectively treated, thereby affecting the operation continuity and reducing the operation efficiency.
[0004] Therefore, in order to solve the problem that the existing hydrocyclone is easy to block, the operation continuity ability is reduced, and the maintenance cost is increased, it is necessary to provide a bypass device for cleaning gypsum hydrocyclone. CONTENT OF THE UTILITY MODEL
[0005] The utility model intends to provide a bypass device for cleaning gypsum hydrocyclone, so as to solve the problem that the existing hydrocyclone is easy to block in production, affects the stability of the equipment, reduces the operation efficiency and increases the maintenance cost.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0007] The utility model provides a bypass device for cleaning gypsum hydrocyclone, which effectively intercepts fine particles by setting an overall filtering device at the inlet of the hydrocyclone, so as to reduce the risk of hydrocyclone blockage, ensure the operation continuity and improve the operation efficiency. Specifically, a bypass device for cleaning gypsum hydrocyclone is provided, which comprises a main pipeline and a branch pipeline in communication with a feed pipeline, the discharge outlets of the main pipeline and the branch pipeline are combined and connected to the feed end of the hydrocyclone; the main pipeline comprises a filtering structure, the filtering structure comprises a cylinder, a feed valve port in communication with the feed pipeline is arranged below the cylinder, a discharge valve port is arranged above the cylinder, the discharge valve port is in communication with the feed end; a filter screen is arranged on the inner wall above the cylinder, the discharge valve port is arranged opposite to the filter screen; a flushing port is arranged at the top of the cylinder, and a blowdown port is arranged at the bottom of the cylinder.
[0008] The principle and advantages of the present scheme are:
[0009] In the production process of the gypsum cyclone, the reasons for causing the blockage of the cyclone are various, so that the blockage of the cyclone frequently occurs, and cleaning and maintenance need to be performed frequently. In the cleaning process, the cyclone must be stopped to work, which affects the continuity of production, reduces the production efficiency, and also reduces the stability of the equipment and shortens the service life of the equipment. At present, the post-cleaning method is often used to deal with the blockage, but it is difficult to predict the specific reason for the blockage before the blockage occurs, so it is difficult to effectively eliminate and deal with it, which makes it difficult to deal with the blockage.
[0010] The present scheme breaks out of the thinking mode of dealing with the blockage, and directly sets a bypass system at the feed inlet of the cyclone, which filters the fine particles in the slurry in an overall filtering manner, thereby reducing the impurities or blockage factors entering the interior of the cyclone. For the added bypass system, the filtering is performed through the filter screen, and even if the filter screen is blocked, the cleaning can be performed without stopping the machine, thereby ensuring the normal and stable operation of the cyclone. At the same time, when the bypass device is cleaned, the slurry is transported through the branch pipe, and since the filter screen does not need to be disassembled for cleaning, the cleaning is directly completed online, and the impurities are directly discharged from the blowdown port, so the time consumed is very short. During this period, the slurry transportation is completed through the branch pipe, and in a small amount, the cyclone will not be excessively blocked, thereby realizing cleaning without stopping the machine. The present scheme has a simple structure, can effectively intercept fine particles, greatly reduces the blockage risk of the cyclone, ensures the continuity of operation, improves the production efficiency, and prolongs the service life of the cyclone.
[0011] Further, the filter screen has an annular structure with open upper and lower ends, the height of the filter screen is 400-600 mm, and the pore size is 5-7 mm. The filter screen ensures effective filtration of fine particles, reduces the blockage risk of the cyclone, and ensures the stability of the equipment operation.
[0012] Further, a first control butterfly valve and a first pressure gauge are arranged at the feed valve port, and a second control butterfly valve and a second pressure gauge are arranged at the discharge valve port. The flow state of the slurry can be controlled in real time through the control butterfly valve, and the pressure gauge is used for real-time monitoring, thereby ensuring the stable transportation of the slurry, meeting the production efficiency requirement, and ensuring the production safety.
[0013] Further, a blowdown valve is arranged at the blowdown port. The blowdown valve is used to flexibly control the opening and closing state of the blowdown port, realizes online real-time blowdown treatment, and ensures the continuity of production.
[0014] Further, the feeding valve port is centrally located at a distance of 300-350 mm from the bottom of the cylinder. A certain space is left for the blowdown port to avoid mixing of the feeding valve port with the bottom, reduce secondary mixing of slurry impurities, and ensure that the slurry flows into the filter screen at a set flow rate, thereby achieving the effect of filtration and delivery.
[0015] Further, the branch pipe is a U-shaped pipe and is arranged on one side of the filter structure; the feeding side of the branch pipe is in communication with the feeding valve port, and the discharging side of the branch pipe is in communication with the discharging valve port.
[0016] Further, a third control butterfly valve is arranged on the branch pipe, which facilitates flexible control of the flow of the branch pipe and realizes online switching.
[0017] Further, the diameter of the cylinder is 500-600 mm, which ensures the flow rate of the slurry and the filtration effect and avoids congestion in the cylinder.
[0018] Further, the diameters of the feeding valve port and the discharging valve port are consistent and are 150-160 mm, which ensures the flow pressure and flow impact force of the slurry, meets the filtration requirement, improves the flow amount of the filtered slurry, and ensures safe operation while improving the operation efficiency.
[0019] Further, a flange is arranged on the top of the filter screen, and the filter screen is arranged on the inner wall of the cylinder through the flange. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 Fig. 1 is a structural schematic view of a bypass device for cleaning a gypsum cyclone in the utility model;
[0021] Figure 2 Fig. 2 is a structural schematic view of a main pipe in the bypass device for cleaning the gypsum cyclone in the utility model;
[0022] Figure 3 Fig. 3 is a structural schematic view of a filter screen in the bypass device for cleaning the gypsum cyclone in the utility model. DETAILED DESCRIPTION
[0023] The following will be further described in detail through specific embodiments:
[0024] The reference signs in the drawings of the specification include: a feeding pipe 1, a main pipe 2, a branch pipe 3, a feeding end 4, a filter structure 5, a cylinder 6, a feeding valve port 7, a first control butterfly valve 8, a first pressure gauge 9, a discharging valve port 10, a flow pipe 11, a second control butterfly valve 12, a second pressure gauge 13, a filter screen 14, a flushing port 15, a blowdown port 16, a blowdown valve 17, a feeding side 18, a discharging side 19, and a third control butterfly valve 20.
[0025] Example 1
[0026] The embodiment is basically as shown in the accompanying drawings Figure 1 The bypass device for cleaning the gypsum cyclone is installed on the slurry inlet of the cyclone. The slurry to be fed into the cyclone is first filtered to remove fine particles, and then fed into the cyclone, thereby discharging possible blockages in advance and reducing the risk of cyclone blockage. Figure 1 As shown in the accompanying drawings, the bypass device for cleaning the gypsum cyclone is installed on the slurry inlet of the cyclone. The slurry to be fed into the cyclone is first filtered to remove fine particles, and then fed into the cyclone, thereby discharging possible blockages in advance and reducing the risk of cyclone blockage.
[0027] As shown in the accompanying drawings, the bypass device for cleaning the gypsum cyclone is installed on the slurry inlet of the cyclone. The slurry to be fed into the cyclone is first filtered to remove fine particles, and then fed into the cyclone, thereby discharging possible blockages in advance and reducing the risk of cyclone blockage. Figure 2 As shown in the accompanying drawings, the bypass device for cleaning the gypsum cyclone is installed on the slurry inlet of the cyclone. The slurry to be fed into the cyclone is first filtered to remove fine particles, and then fed into the cyclone, thereby discharging possible blockages in advance and reducing the risk of cyclone blockage.
[0028] A feed valve port 7 is provided below the cylinder 6 and communicates with the feed pipe 1. In this embodiment, the center of the feed valve port 7 is located 300-350 mm from the bottom of the cylinder to ensure normal flow of the slurry while not affecting the discharge of the filtered material. A first control butterfly valve 8 and a first pressure gauge 9 are also installed at the feed valve port 7 to monitor the flow pressure and speed of the slurry in the feed valve port 7 in real time, and to adjust the flow online through the first control butterfly valve 8 to ensure the stability and safety of the equipment operation. A discharge valve port 10 is provided above the cylinder 6 and communicates with the feed end 4 of the cyclone through a flow passage 11 to feed the filtered slurry into the cyclone at a certain flow rate and flow rate. A second control butterfly valve 12 and a second pressure gauge 13 are also installed at the discharge valve port 10 to control the flow state and flow pressure of the slurry in real time to ensure stability and safety. In this embodiment, the diameters of the feed valve port 7 and the discharge valve port 10 are the same, both being 150-160 mm, and can be set to 160 mm to meet the docking efficiency of the adapted cyclone and the flow requirements of the slurry.
[0029] A filter screen 14 is installed on the inner side wall above the cylinder 6. In this embodiment, the filter screen 14 is installed on the inner side wall of the cylinder 6 by installing a flange on the top of the filter screen 14, and the flange can be made of 2205 duplex stainless steel, which is simple, beautiful, corrosion-resistant and has a long service life. The filter screen 14 is made of duplex stainless steel by laser cutting to improve the durability and stability of the filter screen 14. The discharge valve port 10 is arranged opposite to the filter screen 14, i.e. the discharge valve port 10 is installed on the upper middle part of the filter screen 14 to ensure that the slurry can flow directly into the discharge valve port 10 after passing through the filter screen 14 and enter the cyclone through the flow passage 11. Figure 3As shown, in the embodiment, the filter screen 14 is an annular structure with both upper and lower ends open, the height of the filter screen 14 is set to 400-600mm, and specifically set to 500mm, and the filter aperture is 5-7mm. To ensure that the slurry entering the cyclone can achieve a filtering effect and can effectively filter the fine particles in the slurry, reducing the risk of cyclone blockage.
[0030] A flushing port 15 is arranged at the top of the cylinder body 6, in the embodiment, the flushing port 15 is controlled by opening and closing the flange cover, when it is necessary to clean the inside of the cylinder body 6, the filter screen 14 can be directly cleaned by opening the flushing port 15, without the need to disassemble the filter screen 14, to ensure the continuity of the equipment operation, and realize the effect of online pollution cleaning.
[0031] A pollution discharge port 16 is arranged at the bottom of the cylinder body 6, in the embodiment, a pollution discharge valve 17 is installed at the pollution discharge port 16, when it is necessary to discharge cleaning sewage or impurities, the pollution discharge valve 17 can be directly opened to realize online pollution treatment through the pollution discharge port 16, to improve production efficiency and ensure the stability of the equipment.
[0032] In the embodiment, as shown in the accompanying drawings Figure 1 The branch pipe 3 is a U-shaped pipe structure as a whole, and is installed on one side of the filter structure 5. Among them, the inlet side 18 of the branch pipe 3 is in communication with the inlet valve port 7, and the outlet side 19 of the branch pipe 3 is in communication with the outlet valve port 10. In the embodiment, the pipe diameter of the branch pipe 3 is set to 150-160mm to ensure smooth flow of the slurry. At the same time, a third control butterfly valve 20 is also installed on the branch pipe 3 to control the flow state of the branch pipe 3 in real time, improve the operation flexibility and controllability.
[0033] The specific implementation process is as follows:
[0034] As shown in the accompanying drawings Figure 1 to Figure 3 When the slurry needs to be transported to the cyclone, first open the control butterfly valve of the main pipe 2 and close the control butterfly valve of the branch pipe 3. The slurry enters the filter structure 5 through the inlet valve port 7 through the inlet pipe 1, and flows from bottom to top to the outlet valve port 10 under the action of centrifugal force inside the cylinder body 6, at this time the impurities in the slurry will be filtered by the filter screen 14, and part of the impurities will fall into the pollution discharge port 16 under the action of gravity. The filtered slurry is sent into the cyclone through the outlet valve port 10 through the flow pipe 11 to filter out the fine particles in the slurry and reduce the risk of cyclone blockage.
[0035] When the filter screen 14 in the barrel 6 needs to be cleaned, the control butterfly valve of the main pipe 2 is closed, and the control butterfly valve of the branch pipe 3 is opened. At this time, the slurry will temporarily flow from the branch pipe 3 into the flow pipe 11 and into the cyclone. Then, without stopping, the flushing port 15 can be directly opened to flush the internal filter screen 14, and the waste water and waste residue after cleaning can be directly discharged through the blowdown port 16, realizing on-line blowdown treatment without stopping to ensure the stable operation of the cyclone system, the continuity of the desulfurization system, and the production efficiency.
[0036] In the operation process of the gypsum cyclone in the embodiment, the cyclone frequently encounters various blockage reasons, resulting in the need for frequent cleaning and maintenance operations. This process requires the cyclone to be temporarily stopped, which not only destroys the continuity of production, reduces efficiency, but also weakens the stability of the equipment and shortens its service life. At present, due to the difficulty in predicting the specific reasons before blockage, it is difficult to take effective preventive measures and targeted solutions, making the blockage treatment difficult, so the current main way to deal with it is to clean up afterwards.
[0037] The scheme discards the traditional idea of treating blockages, and innovatively sets up a bypass system at the inlet of the cyclone, effectively filtering out fine particles in the slurry through overall filtration, reducing impurities and potential blockage factors entering the cyclone from the source. The bypass system uses a filter screen for filtration, so even if the filter screen is blocked, it can be cleaned without stopping to ensure the continuous and stable operation of the cyclone. And when cleaning the bypass device, the slurry can be continuously transported through the branch pipe without disassembling the filter screen, so the cleaning process is completed online, and impurities are directly discharged from the blowdown port, so the cleaning time is very short. During the cleaning period, a small amount of slurry is transported through the branch pipe, which does not significantly increase the risk of blockage of the cyclone. This scheme not only has a simple design, but also effectively intercepts fine particles, greatly reduces the possibility of blockage of the cyclone, ensures the continuity of production, improves production efficiency, and prolongs the service life of the cyclone.
[0038] The above is only an embodiment of the present application, and well-known specific technical solutions and / or characteristics in the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.
Claims
1. A bypass device for cleaning a gypsum cyclone, characterised in that: The device comprises a main pipe and a branch pipe which are communicated with a feeding pipe, and the outlet of the main pipe and the branch pipe are connected to the feeding end of a cyclone; the main pipe comprises a filter structure which comprises a cylinder, a feeding valve port is arranged below the cylinder and communicated with the feeding pipe, a discharging valve port is arranged above the cylinder and communicated with the feeding end, a filter screen is arranged on the inner wall of the cylinder above, the discharging valve port is arranged opposite to the filter screen, a flushing port is arranged on the top of the cylinder, and a blowdown port is arranged on the bottom of the cylinder.
2. A bypass device for cleaning a gypsum cyclone according to claim 1, characterised in that: The filter screen is an annular structure with open upper and lower ends, the height of the filter screen is 400-600 mm, and the aperture is 5-7 mm.
3. The bypass device for cleaning a gypsum cyclone of claim 1, wherein: A first control butterfly valve and a first pressure gauge are arranged at the feeding valve port, and a second control butterfly valve and a second pressure gauge are arranged at the discharging valve port.
4. The bypass device for cleaning a gypsum cyclone of claim 1, wherein: A blowdown valve is arranged at the blowdown port.
5. The bypass device for cleaning a gypsum cyclone of claim 1, wherein: The center of the feeding valve port is arranged at a distance of 300-350 mm from the bottom of the cylinder.
6. The bypass device for cleaning a gypsum cyclone of claim 1, wherein: The branch pipe is a U-shaped pipe and arranged on one side of the filter structure; the feeding side of the branch pipe is communicated with the feeding valve port, and the discharging side of the branch pipe is communicated with the discharging valve port.
7. The bypass device for cleaning a gypsum cyclone of claim 1, wherein: A third control butterfly valve is arranged on the branch pipe.
8. The bypass device for cleaning a gypsum cyclone of claim 1, wherein: The diameter of the cylinder is 500-600 mm.
9. The bypass device for cleaning a gypsum cyclone of claim 1, wherein: The diameters of the feeding valve port and the discharging valve port are consistent and are 150-160 mm.
10. The bypass device for cleaning a gypsum cyclone of claim 1, wherein: A flange is arranged on the top of the filter screen, and the filter screen is arranged on the inner wall of the cylinder through the flange.