Gypsum cyclone with throttling mechanism

Abstract

The utility model discloses a gypsum swirler with a throttle mechanism, which relates to the technical field of power plant wastewater treatment, and comprises a swirling shell, a leading-out tank body and a branch overflow pipe, a sealing cover is arranged right above the swirling shell, one side of the swirling shell is connected with a feeding pipe fitting in a penetrating manner, and the other side of the swirling shell is connected with a discharging pipe fitting in a penetrating manner. The bottom end of the rotational flow shell is connected with the top end of a sand setting pipe fitting in a penetrating manner, the leading-out tank body is arranged right above the rotational flow shell, a flow control mechanism is arranged right above the rotational flow shell, and the flow control mechanism is used for controlling the led-out flow, so that the problem that the liquid level is frequently increased due to the fact that a large amount of wastewater completely enters a filtrate pool is avoided; the filtrate pump is frequently started and stopped, and the service life of the water pump is shortened. After transformation and optimization, the gypsum swirler is normally put into operation, the top flow slurry storage cylinder does not overflow due to throttling, the top flow and bottom flow of the wastewater swirler are normal, the flow to the triple box returns to normal, and the dosing system can be normally put into operation.

Description

Technical Field

[0001] This utility model relates to the technical field of power plant wastewater treatment, specifically to a gypsum hydrocyclone with a throttling mechanism. Background Technology

[0002] In a flue gas desulfurization system, the gypsum hydrocyclone is positioned between the absorption tower and the vacuum dewatering conveyor belt. The gypsum hydrocyclone is responsible for the initial separation of various byproducts discharged from the absorption tower. The concentrated solid-liquid mixture after separation is then transported to the vacuum belt dewatering machine for secondary dewatering.

[0003] During operation of the gypsum hydrocyclone, the top flow rate of the wastewater hydrocyclone is too small, and all of it flows to the filtrate pool through the bottom flow. This results in almost no flow at the inlet of the triplet tank, making it impossible to do chemical treatment, which does not meet environmental protection requirements. A large amount of wastewater goes to the filtrate pool, causing the liquid level to rise frequently, and the filtrate pump to start and stop frequently, reducing the service life of the pump. Summary of the Invention

[0004] The purpose of this invention is to provide a gypsum hydrocyclone with a throttling mechanism to solve the above-mentioned defects caused by the prior art.

[0005] A gypsum hydrocyclone with a throttling mechanism includes a hydrocyclone shell, an outlet tank, and an overflow pipe. A sealing cover is provided on the top of the hydrocyclone shell. A feed pipe is connected through one side of the hydrocyclone shell. The top of a sand settling pipe is connected through the bottom of the hydrocyclone shell. The outlet tank is located on the top of the hydrocyclone shell. A flow control mechanism is provided on the top of the hydrocyclone shell to control the outflow rate, preventing a large amount of wastewater from going to the filtrate pool, which would cause the liquid level to rise frequently and the filtrate pump to start and stop frequently, reducing the pump's service life. A filtration mechanism is provided inside the hydrocyclone shell to further filter the liquid after hydrocyclone separation, thereby preventing debris from clogging the bottom of the overflow pipe.

[0006] Preferably, the flow control mechanism includes an overflow pipe, an outlet tank, a flow-blocking panel, a shaft positioning plate, a slot, and a block. The overflow pipe is arranged in a ring on the top of the sealing cover. The outlet tank is connected to the other side of the overflow pipe. The outlet tank has a slot inside for buffering. A block is connected to the outside of the slot. The block is arranged in a ring on the outside of the shaft positioning plate. The flow-blocking panel is axially connected to both the upper and lower sides of the shaft positioning plate.

[0007] Preferably, the vortex housing is connected to the flow-blocking panel via an internally configured shaft positioning plate as a bearing.

[0008] Preferably, a main overflow pipe is connected through the top of the outlet tank.

[0009] Preferably, the filtration mechanism includes a sealing cover, a purification screen, an internally threaded tube, and a threaded rod. The bottom end of the sealing cover is connected to the threaded rod, the outside of the threaded rod is connected to the internally threaded tube, and the purification screen is connected directly below the internally threaded tube.

[0010] Preferably, the internally threaded tube is connected to the bottom end of the overflow pipe via a purification mesh connected below.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. After the modification and optimization, the gypsum hydrocyclone is operating normally. The cylinder storing the slurry at the top flow does not overflow due to throttling. The top and bottom flow rates of the wastewater hydrocyclone are normal, the flow rate to the triple tank has returned to normal, and the dosing system can be put into normal operation. The flow rate of the liquid is controlled by rotating the flow-blocking panel on the outside of the shaft positioning plate, so as to avoid affecting the efficiency of the next treatment due to excessive flow. This modification ensures the normal operation of the wastewater treatment system of the plant's four units, and the cost is extremely low, saving our plant a lot of modification costs.

[0013] 2. During the swirling process, the internally threaded tube is rotated, causing it to rotate outside the threaded rod. This adjusts the height of the purification screen, allowing it to filter the bottom of multiple overflow pipes. This further reduces the amount of liquid impurities entering the overflow pipes and prevents blockage caused by excessive numbers or sizes of impurities. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a top-section structural diagram of the export tank in this utility model.

[0016] Figure 3 This is a partial cross-sectional view of the vortex shell structure in this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the shaft positioning disk in this utility model.

[0018] in:

[0019] 1. Swirl shell; 2. Feed pipe fitting; 3. Sand settling pipe fitting; 4. Sealing cover; 5. Overflow pipe; 6. Outlet tank; 7. Main overflow pipe; 8. Flow control mechanism; 9. Filtration mechanism; 10. Purification screen; 11. Internally threaded pipe; 12. Threaded rod; 13. Flow-blocking panel; 14. Shaft positioning plate; 15. Slot; 16. Locking block. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1 to 4 As shown, a gypsum hydrocyclone with a throttling mechanism includes a hydrocyclone shell 1, an outlet tank 6, and an overflow pipe 5. A sealing cover 4 is provided on the top of the hydrocyclone shell 1. A feed pipe 2 is connected through one side of the hydrocyclone shell 1. The top of a sand settling pipe 3 is connected through the bottom of the hydrocyclone shell 1. The outlet tank 6 is located on the top of the hydrocyclone shell 1. A flow control mechanism 8 is provided on the top of the hydrocyclone shell 1. The flow control mechanism 8 controls the outflow rate to prevent a large amount of wastewater from going to the filtrate pool, which would cause the liquid level to rise frequently and the filtrate pump to start and stop frequently, reducing the service life of the pump. A filtration mechanism 9 is provided inside the hydrocyclone shell 1 to further filter the liquid after hydrocyclone separation, thereby preventing debris from clogging the bottom of the overflow pipe 5.

[0022] In this embodiment, the flow control mechanism 8 includes an overflow pipe 5, an outlet tank 6, a flow-blocking panel 13, a shaft positioning plate 14, a slot 15, and a locking block 16. The overflow pipe 5 is arranged in a ring at the top of the sealing cover 4. The outlet tank 6 is connected to the other side of the overflow pipe 5. The slot 15 is provided inside the outlet tank 6. The locking block 16 is connected to the outside of the slot 15. The locking block 16 is arranged in a ring on the outside of the shaft positioning plate 14. The flow-blocking panel 13 is axially connected to both the upper and lower sides of the shaft positioning plate 14. The flow-blocking panel 13 controls the flow rate of the liquid to prevent excessive liquid flow from damaging the equipment.

[0023] In this embodiment, the vortex housing 1 is connected to the flow-blocking panel 13 by a bearing through an internally arranged shaft positioning disk 14. The flow rate of the liquid is controlled by the rotation of the vortex housing 1 on the outside of the shaft positioning disk 14 via the flow-blocking panel 13.

[0024] In this embodiment, the top of the outlet tank 6 is connected to a main overflow pipe 7, through which the liquid is diverted and introduced into the liquid collection and then discharged directly.

[0025] In this embodiment, the filtration mechanism 9 includes a sealing cover 4, a purification screen 10, an internally threaded tube 11, and a threaded rod 12. The bottom end of the sealing cover 4 is connected to the threaded rod 12, the outer side of the threaded rod 12 is connected to the internally threaded tube 11, and the purification screen 10 is connected directly below the internally threaded tube 11. The top end of the purification screen 10 is positioned by the threaded rod 12, which facilitates the disassembly and cleaning of the purification screen 10.

[0026] In this embodiment, the internally threaded pipe 11 is connected to the bottom end of the purification screen 10 and the overflow pipe 5. The internally threaded pipe 11 drives the purification screen 10 to move up and down, which facilitates the cleaning and disassembly of the purification screen 10.

[0027] In practical applications, this type of gypsum hydrocyclone with a throttling mechanism includes the following operations:

[0028] Step 1: When the pressurized slurry enters the vortex chamber through the feed pipe 2 of the vortex shell 1, it will generate high-speed rotational motion. Due to the restriction of the inner and outer cylinders and the sealing cap 4, the slurry forms a downward external vortex. During the vortex process, the denser particles are thrown towards the inner wall of the vortex shell 1 by centrifugal force, lose energy, slide down the wall, and are discharged from the bottom sand settling pipe 3; while the less dense particles move in the axial direction, forming an upward internal vortex, and are discharged from the overflow pipe 5.

[0029] Step 2: Before filtration, the operator connects the bottom end of the internal threaded tube 11 to the top end of the corresponding width of the purification screen 10 according to the processing capacity of the equipment, so that the internal threaded tube 11 rotates outside the threaded rod 12, and according to the bottom height of the overflow pipe 5, the top end of the purification screen 10 and the bottom end of the overflow pipe 5 are blocked, so that the filtered liquid is injected into the interior of the outlet tank 6 again after being filtered by the purification screen 10, and the liquid is further treated by sedimentation in the outlet tank 6.

[0030] Step 3: At the same time, the operator can pull the flow-blocking panel 13 according to the flow control requirements, so that the flow-blocking panel 13 rotates on the outside of the shaft positioning plate 14, thereby controlling the discharge flow rate. At the same time, the bolts are used to lock the rotating contact surface between the flow-blocking panel 13 and the shaft positioning plate 14, and then the liquid is directly discharged through the main overflow pipe 7, and then injected into the interior of the sedimentation tank.

[0031] Step 4: After the flow-blocking panel 13 and the shaft positioning plate 14 need to be adjusted, the operator can connect the outer side of the locking block 16 of the shaft positioning plate 14 to the outer side of the slot 15, and then connect the shaft positioning plate 14 to the slot 15 inside the outlet tank 6. Then connect the outlet tank 6 to the main overflow pipe 7 to directly discharge the liquid inside the outlet tank 6.

[0032] Therefore, the above-disclosed embodiments are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A gypsum hydrocyclone with a throttling mechanism, characterized in that: The device includes a cyclone shell (1), an outlet tank (6), and an overflow pipe (5). A sealing cover (4) is provided on the top of the cyclone shell (1). An inlet pipe (2) is connected through one side of the cyclone shell (1). A sand settling pipe (3) is connected through the top of the bottom of the cyclone shell (1). The outlet tank (6) is located on the top of the cyclone shell (1). A flow control mechanism (8) is provided on the top of the cyclone shell (1). The flow control mechanism (8) controls the outflow rate to prevent a large amount of wastewater from going to the filtrate pool, which would cause the liquid level to rise frequently and the filtrate pump to start and stop frequently, reducing the service life of the pump. A filtration mechanism (9) is provided inside the cyclone shell (1) to further filter the liquid after cyclone separation, thereby preventing debris from clogging the bottom of the overflow pipe (5).

2. A gypsum hydrocyclone with a throttling mechanism according to claim 1, characterized in that: The flow control mechanism (8) includes an overflow pipe (5), an outlet tank (6), a flow-blocking panel (13), a shaft positioning plate (14), a slot (15), and a block (16). The overflow pipe (5) is arranged in a ring at the top of the sealing cover (4). The outlet tank (6) is connected to the other side of the overflow pipe (5). The outlet tank (6) has a slot (15) inside for buffering. The block (16) is connected to the outside of the slot (15). The block (16) is arranged in a ring on the outside of the shaft positioning plate (14). The flow-blocking panel (13) is axially connected to both the upper and lower sides of the shaft positioning plate (14).

3. A gypsum hydrocyclone with a throttling mechanism according to claim 2, characterized in that: The swirling housing (1) is connected to the flow-blocking panel (13) via an internally arranged shaft positioning plate (14) as a bearing.

4. A gypsum hydrocyclone with a throttling mechanism according to claim 1, characterized in that: The top of the outlet tank (6) is connected to the main overflow pipe (7).

5. A gypsum hydrocyclone with a throttling mechanism according to claim 1, characterized in that: The filtration mechanism (9) includes a sealing cover (4), a purification screen (10), an internal threaded tube (11), and a threaded rod (12). The bottom end of the sealing cover (4) is connected to the threaded rod (12), the outside of the threaded rod (12) is connected to the internal threaded tube (11), and the purification screen (10) is connected directly below the internal threaded tube (11).

6. A gypsum hydrocyclone with a throttling mechanism according to claim 5, characterized in that: The internally threaded pipe (11) is connected to the bottom end of the overflow pipe (5) via a purification mesh (10) connected below.

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