A device for cleaning floating beads in a clarification tank
By designing a clearing tank floating bead cleaning device, using the combination of a floating bead guide and a collection network, the problem of floating bead enrichment during coal gasification is solved, the stability and capture efficiency of the device are improved, and the production cost is reduced.
Patent Information
- Application Number
- CN202421380831.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The floating beads produced during coal gasification are less than water and are difficult to settle, resulting in enrichment in the gasification device, affecting the stable operation of the device.
A clear groove floating bead cleaning device is designed, including a clear groove, a floating bead collector and a floating bead guide. By setting up a floating bead guide, the floating beads are guided to the floating bead collection area, and the collection net is used to collect the floating beads.
It effectively improves the capture rate of floating beads, avoids the enrichment of floating beads in the gasification device, extends the service life of the device, and improves the stable operation of the device. At the same time, the drift bead collection process is simplified, the number of equipment and floor area is reduced, and the production cost is reduced.
Smart Images
Figure CN222694068U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of chemical technology, and in particular to a device for cleaning floating beads in a clarification tank. Background Art
[0002] In the field of coal gasification, floating beads are often produced during the quenching and washing process, floating on the surface of the sedimentation tank. Floating beads are hollow balls of fly ash that can float on the water surface. The chemical composition is mainly silicon dioxide and aluminum trioxide. The formation mechanism is that the coal powder is burned at a temperature above 1300℃, and the silicon, aluminum and other non-combustible substances in the coal powder melt at high temperature to form micro droplets. The combustion produces gas that enters into the droplets, forming hollow glass beads under the action of surface tension. In the subsequent process, after cooling and surface hardening, hollow small balls that can float on the water surface are finally formed.
[0003] From the formation mechanism, the formation of floating beads is related to the combustion temperature of coal powder. In order to achieve a better conversion efficiency of coal powder, the current mainstream coal gasification technology - entrained flow coal gasification technology, generally uses pure oxygen as the medium, with a high operating temperature, which is more likely to produce floating beads. Because the density of floating beads is lower than that of water, they mostly float on the water surface. The agents used to precipitate suspended matter in water have very limited effect on the sedimentation of floating beads, causing the floating beads to accumulate in the gasification device, leading to the deterioration of the gasification system, accelerating the wear of the equipment in the gasification device, and seriously affecting the stable operation of the device. Utility Model Content
[0004] The purpose of the present application is to provide a device for cleaning floating beads in a clarification tank, which can effectively collect and capture floating beads, avoid the enrichment of floating beads in a gasification device, and improve the stable operation of the device.
[0005] The technical solution of the present application provides a floating bead cleaning device for a clarification tank, comprising: a clarification tank, wherein an overflow weir is arranged in the clarification tank, an overflow space is defined between the overflow weir and the outer wall of the clarification tank, a floating bead collecting area is arranged in the overflow space; a floating bead collector is arranged in the floating bead collecting area, the floating bead collector comprises a collecting net, and the collecting net is used to collect the floating beads moved to the floating bead collector; a floating bead guide, the floating bead guide comprises a guide port for discharging guide water, the guide port is located inside the overflow weir, the guide port is at least partially located above the liquid level in the overflow weir, and the guide port faces the floating bead collection area.
[0006] Optionally, two isolation plates are arranged circumferentially in the overflow space, and the two isolation plates separate the overflow space into an overflow area and the floating bead collection area.
[0007] Optionally, the clarification tank floating bead cleaning device also includes a gray water tank, and the portion of the outer wall of the clarification tank located in the overflow area is connected to the gray water tank through a first overflow pipe, and the gray water tank is connected to the floating bead guide through a water pipe, and the water pipe is provided with a driving pump and a water valve.
[0008] Optionally, a portion of the outer wall of the clarification tank located in the floating bead collection area is connected to the gray water tank through a second overflow pipe, and a control valve is installed on the second overflow pipe.
[0009] Optionally, the number of the guide openings is at least three, and any of the guide openings is arranged on a water guide branch pipe, and the water guide branch pipe is connected to the water guide pipe.
[0010] Optionally, the number of the floating bead collectors is at least two, and at least two of the floating bead collectors are arranged along the circumference of the floating bead collection area.
[0011] Optionally, the floating bead collector further comprises a net wall located on the outside of the collecting net, and a mounting piece is provided on the net wall, and the mounting piece is used to detachably mount the floating bead collector in the overflow space.
[0012] Optionally, the mounting member includes a hooking portion, and the hooking portion is used to hook on at least one of the overflow weir and the outer wall of the clarification tank.
[0013] Optionally, a positioning piece is provided on the outer periphery of the collecting net, and the positioning piece is detachably overlapped on the net wall.
[0014] Optionally, a take-and-place groove is provided on the side of the mesh wall.
[0015] The above technical solution has the following beneficial effects:
[0016] The clarification tank floating bead cleaning device provided by the present application, by utilizing the characteristic of floating beads floating on the water surface, is provided with a floating bead guide to guide the floating beads in the clarification tank to the floating bead collection area, and the floating beads are collected in the floating bead collection area by the collection net of the floating bead collector, thereby improving the capture rate of floating beads, avoiding the enrichment of floating beads in the gasification device, and improving the stable operation of the device. In addition, there is no need to set up a separate floating bead collection tank, which simplifies the floating bead collection process, reduces the number of device equipment, and the device footprint, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of a clarification tank floating bead cleaning device in one embodiment of the present application.
[0018] Figure 2 It is a schematic diagram of the structure of a clarification tank in one embodiment of the present application.
[0019] Figure 3 This is a top view of a floating bead collector in one embodiment of the present application.
[0020] Figure 4 It is a side view of a floating bead collector in one embodiment of the present application.
[0021] Reference Numbers
[0022] 1-clarification tank, 10-overflow weir, 11-floating beads collection area, 12-overflow area, 13-isolation plate, 14-overflow port.
[0023] 2- floating bead collector, 20- collecting net, 200- periphery, 201- positioning piece, 21- net wall, 210- mounting piece, 211- taking and placing slot.
[0024] 3- floating bead guide, 30- guide port, 31- water guide branch pipe.
[0025] 4-grey water tank, 41-first overflow pipe, 42-water guide pipe, 420-driving pump, 421-water guide valve, 43-second overflow pipe, 430-control valve.
[0026] 5-Gasification device. DETAILED DESCRIPTION
[0027] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.
[0028] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a variety of structural modes and implementation modes can be replaced by those skilled in the art. Therefore, the following specific implementation methods and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction on the technical solution of the utility model.
[0029] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.
[0030] The present application provides a clarification tank floating bead cleaning device, comprising: a clarification tank 1, a floating bead collector 2 and a floating bead guide 3.
[0031] The clarification tank 1 is provided with an overflow weir 10 which is enclosed (closed loop connection from end to end), and an overflow space is defined between the overflow weir 10 and the outer wall of the clarification tank 1, and a floating bead collection area 11 is provided in the overflow space. The floating bead collector 2 is located in the floating bead collection area 11, and the floating bead collector 2 includes a collection net 20, and the collection net 20 is used to collect the floating beads moved to the floating bead collector 2. The floating bead guide 3 includes a guide port 30 for discharging guide water, and the guide port 30 is located inside the overflow weir 10, and the guide port 30 is at least partially located above the liquid level in the overflow weir 10, and the guide port 30 faces the floating bead collection area 11.
[0032] As an optional embodiment of the overflow weir 10, Figure 2 As shown, the overflow weir 10 is set to be annular, and the overflow space is an annular space. In addition, the overflow weir 10 can also be set to other polygonal closed structures such as quadrilaterals, which can be specifically set according to the needs of floating beads cleaning.
[0033] As an optional implementation, Figure 2 As shown, the floating bead collection area 11 is located opposite the guide port 30. When the guide water is discharged from the guide port 30, the guide water pushes the floating beads inside the overflow weir 10 to move toward the floating bead collection area 11, and when they move to the top of the floating bead collection area 11, they are captured and collected by the collection net 20.
[0034] As an optional setting mode of the overflow space, the linear distance between the overflow weir 10 and the outer wall of the clarification tank 1 is between 0.5m and 1.0m, and the specific distance is determined according to the load of the device.
[0035] The mesh size of the collection net 20 is controlled between 50-100 meshes, which allows the water to flow smoothly while preventing the floating beads from escaping from the meshes. The filtration performance is good, and the change in the size of the floating beads during operation can be effectively coped with, the capture rate of the floating beads can be increased, and the floating beads can be effectively prevented from entering the gasification device 5. The mesh size of the collection net 20 can also be appropriately adjusted according to the size of the floating beads.
[0036] The floating beads cleaning device for the clarification tank provided in the embodiment of the present application, by utilizing the characteristic of floating beads floating on the water surface, is provided with a floating bead guide 3 to guide the floating beads in the clarification tank 1 to the floating bead collection area 11, and the floating beads are collected in the floating bead collection area 11 by the collection net 20 of the floating bead collector 2, thereby improving the capture rate of floating beads, avoiding the enrichment of floating beads in the gasification device, and improving the stable operation of the device. In addition, there is no need to set up a separate floating bead collection tank, simplifying the floating bead collection process, reducing the number of device equipment and the device footprint, and reducing production costs.
[0037] As an optional implementation, Figure 2As shown, two isolation plates 13 are arranged circumferentially in the overflow space, and the two isolation plates 13 divide the overflow space into an overflow area 12 and the floating bead collection area 11. The two isolation plates 13 divide the overflow space, and combined with the guiding effect of the floating bead guide 3, the floating beads are caused to gather in the floating bead collection area 11 and collected by the collection net 20, which is easy to operate, stable and reliable.
[0038] As an optional implementation, Figure 1 and Figure 2 As shown, the clarification tank floating bead cleaning device also includes a gray water tank 4, and an overflow port 14 is provided on the outer wall of the clarification tank 1 at the position of the overflow area 12. The overflow port 14 is connected to the gray water tank 4 through a first overflow pipe 41, and the gray water tank 4 is connected to the floating bead guide 3 through a water guide pipe 42. The water guide pipe 42 is provided with a driving pump 420 and a water guide valve 421. The driving pump 420 can be a pump such as a water pump that can drive a liquid. The floating bead guide 3 uses the low-pressure gray water inside the system as a medium to form a self-circulation inside the system, without the need to introduce a new guide medium, reducing the use of external media of the device and reducing system operation consumption.
[0039] As an optional embodiment, an overflow port 14 is provided on the outer wall of the clarification tank 1 at the position of the floating bead collection area 11, and the overflow port 14 is connected to the gray water tank 4 through a second overflow pipe 43, and a control valve 430 is installed on the second overflow pipe 43. The second overflow pipe 43 is connected to the overflow port 14 on the floating bead collection area 11. The floating beads in the collection net 20 are stably captured in the collection net 20 under the trend of the water flow in the floating bead collection area 11 flowing downward and outward toward the overflow port 14.
[0040] In an optional embodiment, if Figure 1 and Figure 2As shown, the floating beads in the clarification tank 1 are cleaned by the following steps. The water guide valve 421 is opened, and the pump 420 is driven to send low-pressure gray water to the floating bead guide 3 through the water guide pipe 42. After the floating bead guide 3 runs for 10s-25s, the control valve 430 on the second overflow pipe 43 is closed. The specific closing time of the control valve 430 is determined according to the size of the clarification tank 1. The function of closing the control valve 430 is to prevent the floating beads in the floating bead collection area 11 from flowing into the gray water tank 4 through the second overflow pipe 43 under the drive of the water flow, and being sent into the gasification device 5 by the driving pump 420. While closing the control valve 430 on the second overflow pipe 43, the floating bead collector 2 is taken out, and the cleaning work of the floating beads in the clarification tank 1 can be quickly completed. According to the number of floating beads to be collected, the removal time of the floating bead collector 2 is between 1min and 2min. After the floating bead collector 2 is taken out, the water guide valve 421 and the floating bead guide 3 are closed, the control valve 430 on the second overflow pipe 43 is opened, and the clarification tank 1 is put into normal use. At the same time, the spare floating bead collector 2 is pre-set in the floating bead collection area 11, waiting for the next floating bead cleaning. The above process can be automatically completed by program control, with a high degree of automation, reducing possible misoperation and improving the reliability of the device. The frequency of floating bead cleaning is adjusted accordingly according to the floating bead situation in the clarification tank 1.
[0041] As an optional implementation, Figure 2 As shown, the number of the guide openings 30 is at least three, and any guide opening 30 is disposed on a water guide branch 31 , and the water guide branch 31 is connected to the water guide pipe 42 . Figure 2 The number of 10 water guide branches 31 shown in the figure is an optional implementation. The number of water guide branches 31 can also be set to 3, 4, 5, 6, 7, 8, 9, etc., which is specifically set according to the size of the clarification tank 1 and the number of floating beads to be cleaned. The water outlet flow rate of the guide port 30 is controlled at about 1m / s. The impact force generated by the water outlet of the guide port 30 temporarily directs the water flow direction on the inner surface of the clarification tank 1 to the floating bead collection area 11, and then pushes the floating beads floating on the water surface into the floating bead collection area 11. The water guide branch 31 is connected to the water guide pipe 42. The water outlet of the guide port 30 uses low-pressure gray water from the gray water tank 4, achieving the effect of internal circulation of the guided water.
[0042] As an optional embodiment, the number of the floating bead collectors 2 is at least two, and at least two of the floating bead collectors 2 are arranged along the circumference of the floating bead collection area 11. Generally, N (N≥2) floating bead collectors 2 are arranged in the floating bead collection area 11, and are arranged along the circumference of the floating bead collection area 11 to effectively collect the floating beads. Figure 2 The seven floating bead collectors 2 shown are an optional embodiment, and the size and specific number of the floating bead collectors 2 are determined according to the size of the floating bead collection area 11.
[0043] As an optional embodiment, the floating bead collector 2 further includes a mesh wall 21 located outside the collection net 20, and a mounting member 210 is provided on the mesh wall 21, and the mounting member 210 is used to detachably mount the floating bead collector 2 in the overflow space. The mesh wall 21 is located at the periphery 200 of the collection net 20, and plays a role in mounting and positioning the collection net 20. The mounting member 210 can be positioned in the floating bead collection area 11 by means of snap connection, overlap connection or hanging connection.
[0044] As an optional embodiment of the mounting member 210, the mounting member 210 includes a hooking portion, and the hooking portion is used to hook on at least one of the overflow weir 10 and the outer wall of the clarification tank 1. The hooking portion is provided with a hook structure, and the hooking portion can be provided only on one side of the mesh wall 21, and is used to be hooked on the overflow weir 10 or the outer wall of the clarification tank 1; the hooking portion can also be provided on both sides of the mesh wall 21, and the hooking portions on both sides of the mesh wall 21 are respectively hooked on the outer wall of the overflow weir 10 and the clarification tank 1, which is stable and reliable.
[0045] As an optional embodiment, a positioning member 201 is provided on the outer periphery 200 of the collecting net 20, and the positioning member 201 is detachably mounted on the net wall 21. Figure 3 As shown, the outer periphery 200 of the collection net 20 is set as a rigid frame, and the rigid frame is provided with positioning members 201 around the periphery. The positioning members 201 can be a sheet-shaped or rod-shaped component overlapped on the net wall 21, or a clamping structure. When the floating bead collector 2 completes a working cycle, the rigid frame is separated from the net wall 21 and taken out, and a new collection net 20 is replaced to quickly put it into use again.
[0046] As an optional embodiment, a take-and-place slot 211 is provided on the side of the mesh wall 21. Figure 4 As shown, the picking and placing groove 211 provides a space for taking and placing the floating bead collector 2. When the floating bead collector 2 needs to be taken out or put back into the floating bead collection area 11, the operator holds his hand in the picking and placing groove 211 or inserts the taking-out device (for example, an L-shaped component) into the taking-out slot through the automatic actuator and lifts it up to take out the floating bead collection device, which is easy to operate.
[0047] As needed, the above technical solutions can be combined to achieve the best technical effect.
[0048] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principles of the present invention, several other modifications can be made, which should also be considered as the protection scope of the present invention.
Claims
1. A clarification tank floating bead cleaning device, characterized in that: include: A clarification tank, wherein an overflow weir is provided in the clarification tank, an overflow space is defined between the overflow weir and the outer wall of the clarification tank, and a floating bead collection area is provided in the overflow space; A floating bead collector is provided in the floating bead collection area, and the floating bead collector includes a collecting net, and the collecting net is used to collect the floating beads moved to the floating bead collector; A floating bead guide, the floating bead guide comprising a guide port for discharging guide water, the guide port being located inside the overflow weir, the guide port being at least partially located above the liquid level in the overflow weir, and the guide port being directed toward the floating bead collection area.
2. The clarification tank floating bead cleaning device according to claim 1, characterized in that: Two isolation plates are arranged circumferentially in the overflow space, and the two isolation plates divide the overflow space into an overflow area and the floating bead collection area.
3. The clarification tank floating bead cleaning device according to claim 2, characterized in that: The clarification tank floating bead cleaning device also includes a gray water tank. The portion of the outer wall of the clarification tank located in the overflow area is connected to the gray water tank through a first overflow pipe. The gray water tank is connected to the floating bead guide through a water pipe. A driving pump and a water valve are provided on the water pipe.
4. The clarification tank floating bead cleaning device according to claim 3, characterized in that: The portion of the outer wall of the clarification tank located in the floating bead collection area is connected to the gray water tank through a second overflow pipe, and a control valve is installed on the second overflow pipe.
5. The clarification tank floating bead cleaning device according to claim 3, characterized in that: The number of the guide openings is at least three, and any of the guide openings is arranged on a water guide branch pipe, and the water guide branch pipe is connected to the water guide pipe.
6. The clarification tank floating bead cleaning device according to claim 4, characterized in that: The number of the floating bead collectors is at least two, and at least two of the floating bead collectors are arranged along the circumference of the floating bead collection area.
7. The clarification tank floating bead cleaning device according to any one of claims 1 to 6, characterized in that: The floating bead collector also includes a net wall located outside the collection net, and a mounting piece is provided on the net wall. The mounting piece is used to detachably mount the floating bead collector in the overflow space.
8. The clarification tank floating bead cleaning device according to claim 7, characterized in that: The mounting member includes a hooking portion for hooking on at least one of the overflow weir and an outer wall of the clarification tank.
9. The clarification tank floating bead cleaning device according to claim 7, characterized in that: A positioning piece is arranged on the outer periphery of the collecting net, and the positioning piece is detachably overlapped on the net wall.
10. The floating bead cleaning device for a clarification tank according to claim 7, characterized in that: The side surface of the net wall is provided with a taking and placing groove.