A polyferric sulfate production filtering device and filtering method

Abstract

The present invention discloses a polyferric sulfate production filtering device and filtering method, comprising a filter box, a filter seat fixed between the inner walls of the filter box, a filter cavity provided on one side of the top of the filter seat, a plurality of filter holes provided through the bottom of the filter seat, and a foam puncturing and static electricity removal mechanism provided on the filter box. The present invention relates to the field of polyferric sulfate production technology. The polyferric sulfate production filtering device and filtering method, through the provision of a foam puncturing and static electricity removal mechanism, utilizes the movement of an L-shaped rod to drive the thorn to move and puncture the foam generated by the stirred polyferric sulfate solution. When the foam bursts, the positive and negative charges on the surface of the liquid film will separate, and the charge will be transferred to the bottom wall of the filter seat. Then, through the rolling of the static electricity elimination roller, an external high-voltage power supply is used to make the static electricity elimination roller generate a charge opposite to that of the filter seat and the polyferric sulfate colloidal particles, neutralize the static electricity between the two, weaken the electrostatic adsorption force, and greatly improve the filtering efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of polyferric sulfate production, in particular to a polyferric sulfate production filtering device and a filtering method. Background Art

[0002] Polyferric sulfate (PFS) is a highly effective inorganic polymer flocculant widely used in water treatment and other fields. Filtration is a crucial step in the production of PFS, as it removes impurities generated during the production process to improve the purity and quality of the PFS product.

[0003] The following technical problems exist in the production and filtration of polyferric sulfate:

[0004] (1) Polyferric sulfate colloidal particles carry a certain charge, and the filter material will also generate static electricity due to factors such as friction during the filtration process. When the charges of the two are opposite, a strong electrostatic adsorption effect will be generated, causing the colloidal particles to firmly adhere to the filter surface, increasing the filtration resistance, and difficult to effectively remove by conventional backwashing. Traditional filtration devices do not consider the impact of electrostatic factors on filtration and lack effective means to eliminate electrostatic adsorption;

[0005] (2) After the polyferric sulfate solution is stirred, air is drawn into the liquid to form foam. When the foam bursts, the positive and negative charges on the surface of the liquid film will separate. Specifically, the colloidal particles (positively charged polyferric sulfate ions) in the foam liquid film will gather at the bubble interface. When it bursts, some particles will disperse with the gas phase, and the remaining particles will form a charge enrichment layer on the liquid surface. If the filter is made of metal (such as stainless steel) or polymer material (such as PP), the splashing droplets will collide with the filter surface after the foam bursts, which will further aggravate the charge transfer through friction, resulting in static electricity accumulation on the filter surface.

[0006] (3) Due to hydrogen bonding, the hydroxyl complex in the polyferric sulfate solution easily forms an adsorption layer on the metal surface of the inclined plate. When the liquid film flow rate is slow, the adsorption layer gradually thickens and forms a gel-like deposit on the inclined plate.

[0007] To solve the above problems, we propose a polyferric sulfate production filtration device and filtration method. Summary of the Invention

[0008] In view of the shortcomings of the prior art, the present invention provides a polyferric sulfate production filtration device and a filtration method, which solve the problems raised in the background technology.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: a polyferric sulfate production filtration device, comprising a filter box, a filter seat fixed between the inner walls of the filter box, a filter cavity formed on one side of the top of the filter seat, a plurality of filter holes formed through the bottom of the filter seat, and a foam puncture and static electricity removal mechanism provided on the filter box, the foam puncture and static electricity removal mechanism being used to accelerate the puncture of foam and remove static electricity from the bottom wall of the filter seat;

[0010] The foam puncture static electricity removal mechanism includes a slide groove that passes through the top of the filter box, an L-shaped rod is slidably connected to the inner surface of the slide groove, a U-shaped frame is fixed to the bottom end of the L-shaped rod, and a static electricity elimination roller is rotatably connected between the opposite sides of the inner wall of the U-shaped frame. A side plate is fixed to one side of the L-shaped rod, and a spur is fixed to one side of the side plate. The L-shaped rod is driven by the U-shaped track moving component on the top of the filter box to move along the U-shaped track.

[0011] Preferably, the U-shaped track moving assembly includes a vertical plate fixed on the top of the filter box, a square plate is provided above the filter box, U-shaped bars are fixed on both sides of the square plate, the inner surfaces of the two U-shaped bars are slidably connected to sliders, one side of the two sliders is fixed with a limit clamp, the outer surface of the L-shaped rod is slidably connected to the inner surfaces of the two limit clamps, the vertical plate is fixed to one side of one of the U-shaped bars, one side of the square plate is rotatably connected to a rotating plate through a pin shaft, a moving groove is penetrated on the rotating plate, and a circular plate is fixed on one side of the L-shaped rod.

[0012] Preferably, a boss is fixed on one side of the circular plate, a U-shaped groove is penetrated on one side of the square plate, one end of the boss penetrates the movable groove and the U-shaped groove and extends to one side of the square plate, the outer surface of the boss is slidably connected to the inner surface of the movable groove and the U-shaped groove, a horizontal plate is fixed on one side of the vertical plate, a motor is fixed on one side of the horizontal plate, a rotating arm is fixed on the output end of the motor, one end of the rotating arm is rotatably connected to rack 1 through a pin shaft, a gear 1 is fixed on the pin shaft of the rotating plate, and the pin shaft of the rotating plate is also rotatably connected to a limiting claw, the rack 1 is meshed with gear 1, and the rack 1 slides inside the limiting claw.

[0013] Preferably, a foam blowing down assembly is provided on one side of the L-shaped rod, and the foam blowing down assembly includes a connecting plate fixed on one side of the L-shaped rod, a U-shaped plate is fixed on one side of the connecting plate, a rotating rod is rotatably connected between opposite sides of the inner wall of the U-shaped plate, a fixed plate is fixed between opposite sides of the inner wall of the U-shaped plate, and a plurality of first bevel gears are fixed on the rotating rod.

[0014] Preferably, a plurality of fan blades are rotatably connected to the fixed plate through a driving rod, a second bevel gear is fixed to the top end of the driving rod, the first bevel gear is meshed with the second bevel gear, one end of the rotating rod passes through the U-shaped plate and extends to the outside of the U-shaped frame, gear 2 is fixed to one end of the rotating rod, rack 2 is fixed to one side of the inner wall of the filter box, and gear 2 is meshed with rack 2.

[0015] Preferably, an impact flow acceleration component is provided on the L-shaped rod and the filter seat, and the impact flow acceleration component is used to intermittently impact the inclined bottom wall of the filter box to accelerate the flow discharge of the polyferric sulfate solution. The impact flow acceleration component includes a cross bar fixed on one side of the L-shaped rod, and a U-shaped seat is fixed at one end of the cross bar. A movable arm is rotatably connected between the opposite sides of the U-shaped seat through a pin shaft, and a movable plate is fixed on one side of the movable arm. A limiting plate is fixed at the bottom of the cross bar, and a limiting column is fixed at the top of the limiting plate.

[0016] Preferably, the top end of the limiting column is in contact and extrusion with the bottom of the movable plate, the inner surface of the filter seat is slidably connected with a vertical rod, the top end of the vertical rod is fixed with a top plate, the top of the movable plate is in contact and extrusion with the bottom of the top plate, the outer surface of the vertical rod is sleeved with a spring, the top end of the spring is fixed to the bottom of the top plate, the bottom end of the spring is fixed to the top of the filter seat, the bottom end of the vertical rod is fixed with an impact plate, the bottom of the impact plate is fixed with multiple impact rods, and the bottom end of the impact rod is in contact and extrusion with the inclined bottom wall of the filter box.

[0017] Preferably, a liquid hopper is fixed to one side of the filter box, four support rods are fixed to the bottom of the filter box, and a liquid outlet pipe is connected to one side of the filter box.

[0018] The present invention also discloses a method for producing and filtering polyferric sulfate, which specifically comprises the following steps:

[0019] Step 1: Pour the stirred polyferric sulfate stock solution into the liquid bucket. The stirred polyferric sulfate stock solution will produce a certain amount of foam. The polyferric sulfate stock solution flows into the filter box, and further flows into the filter cavity. Impurities are filtered through the filter holes. The motor is started. The motor drives the rotating plate to rotate forward and reverse intermittently, so that the L-shaped rod moves along the track of the U-shaped groove. When the L-shaped rod moves to the left at the bottom, the static elimination roller is synchronously driven to roll on the bottom wall of the filter cavity, and the foam is punctured by the puncture. The static adsorption force is weakened by the rolling of the static elimination roller.

[0020] Step 2: When the L-shaped rod moves upward and then to the left, gear 2 contacts and meshes with rack 2. As the L-shaped rod moves to the left, gear 2 is driven to rotate, and gear 2 drives the rotating rod to rotate, and the rotating rod drives the first bevel gear and the second bevel gear to rotate, which in turn drives the fan blades to rotate. After the fan blades are started, the accumulated higher foam is blown down quickly, so that all the foam is pressed into the filter seat. At the same time, the wind blown by the fan blades also increases the surface pressure of the foam, which can be punctured more quickly, thereby accelerating the efficiency of static elimination.

[0021] Step 3. After filtration, the polyferric sulfate stock solution flows to the slope of the bottom wall of the filter box. During the upward movement of the L-shaped rod, the movable plate is used to squeeze and lift the top plate, and then the top plate drives the vertical rod, impact plate and impact rod to move upward, and stretches the spring to store force. When the L-shaped rod moves to the left, the movable plate separates from the top plate. At this time, the spring in a stretched state is reset, driving the impact rod to impact the slope of the bottom wall of the filter box downward, creating vibration to allow the polyferric sulfate stock solution to flow down the slope faster, and finally open the valve to be discharged through the liquid outlet pipe.

[0022] Beneficial effects

[0023] The present invention provides a polyferric sulfate production filtration device and filtration method. Compared with the prior art, it has the following advantages:

[0024] (1) Through the setting of the foam puncture static removal mechanism, the movement of the L-shaped rod is used to drive the thorn to move and puncture the foam generated by the stirred polyferric sulfate solution. When the foam bursts, the positive and negative charges on the surface of the liquid film will separate, and the charge will be transferred to the bottom wall of the filter seat. Then, through the rolling of the static elimination roller, the static elimination roller will generate a charge opposite to that of the filter seat and the polyferric sulfate colloidal particles through an external high-voltage power supply, neutralizing the static electricity between the two, weakening the electrostatic adsorption force, and greatly improving the filtration efficiency.

[0025] (2) Through the setting of the foam blowing down assembly, when the L-shaped rod moves to the left after moving up, it can synchronously drive the foam blowing down assembly to work, so that the L-shaped rod drives multiple fan blades to work simultaneously during the movement. After the fan blades blow air downward, the foam with a high accumulation height will be completely blown into the filter seat. The wind pressure can increase the surface pressure of the foam, which can be punctured more quickly, thereby accelerating the efficiency of static elimination.

[0026] (3) By setting up the impact acceleration flow component, when the L-shaped rod moves upward, the movable plate is used to squeeze and lift the top plate, so that the spring accumulates force. When the L-shaped rod moves to the left, the movable plate is separated from the top plate. At this time, the spring resets and drives the impact rod to quickly impact the slope of the bottom wall of the filter box, creating vibration to accelerate the flow of the filtered polyferric sulfate solution, improve the discharge efficiency of the polyferric sulfate solution, reduce the thickness of the adsorption layer of the polyferric sulfate solution on the slope, and avoid the formation of gel-like deposits on the slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of the external structure of the present invention;

[0028] Figure 2 This is a three-dimensional diagram of the internal structure of the filter box of the present invention;

[0029] Figure 3 It is a partial structural stereogram of the present invention;

[0030] Figure 4 A three-dimensional diagram of the foam-puncturing static electricity removal mechanism of the present invention;

[0031] Figure 5 The U-shaped track moving component of the present invention is three-dimensional Figure 1 ;

[0032] Figure 6 The U-shaped track moving component of the present invention is three-dimensional Figure 2 ;

[0033] Figure 7 A perspective view of a foam downblowing assembly according to the present invention;

[0034] Figure 8 A perspective view of the impact acceleration flow assembly of the present invention;

[0035] Figure 9 For the present invention Figure 8 A partial enlarged view of point A in the middle.

[0036] In the figure: 1. filter box; 2. filter seat; 3. filter cavity; 4. filter hole; 5. foam puncture static removal mechanism; 6. foam blowing assembly; 7. impact acceleration flow assembly; 8. liquid bucket; 9. support rod; 10. liquid outlet pipe; 51. chute; 52. L-shaped rod; 53. U-shaped frame; 54. static elimination roller; 55. side plate; 56. U-shaped track moving assembly; 57. spur; 561. vertical plate; 562. square plate; 563. U-shaped bar; 564. slider; 565. limit clamp; 566. rotating plate; 567. moving groove; 568. round plate; 569. boss; 5610. U-shaped Slot; 5611, horizontal plate; 5612, motor; 5613, rotating arm; 5614, rack one; 5615, gear one; 5616, limiting claw; 61, connecting plate; 62, rotating rod; 63, fixing plate; 64, first bevel gear; 65, driving rod; 66, fan blade; 67, second bevel gear; 68, gear two; 69, rack two; 610, U-shaped plate; 71, horizontal bar; 72, U-shaped seat; 73, movable arm; 74, movable plate; 75, limiting plate; 76, limiting column; 77, vertical pole; 78, top plate; 79, spring; 710, impact plate; 711, impact rod. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] The present invention provides three technical solutions, including the following embodiments:

[0039] Example 1

[0040] See also Figures 1-6 The filter bag 2 has two sides, and two ends are provided with the filter bag 3, and the filter bag 3 has two ends. The filter bag 3 has two ends. The filter bag 3 has two ends. The filter bag 3 has two ends. The filter bag 3 has two ends. The filter bag 3 has two ends.

[0041] The foam puncturing and static electricity removal mechanism 5 includes a chute 51 that passes through the top of the filter box 1. The chute 51 is set to reserve space for the movement of the L-shaped rod 52. The inner surface of the chute 51 is slidably connected to the L-shaped rod 52. The bottom end of the L-shaped rod 52 is fixed with a U-shaped frame 53. The static electricity elimination roller 54 is rotatably connected between the opposite sides of the inner wall of the U-shaped frame 53. The static electricity elimination roller 54 is electrically connected to the external high-voltage power supply through a wire. The external high-voltage power supply is used to make the static electricity elimination roller 54 generate an opposite charge to the filter seat 2 and the polyferric sulfate colloidal particles, neutralize the static electricity between the two, and weaken the electrostatic adsorption force. A side plate 55 is fixed to one side of the L-shaped rod 52, and a thorn 57 is fixed to one side of the side plate 55. The setting of the thorn 57 can puncture the foam. The L-shaped rod 52 is driven by the U-shaped track moving component 56 on the top of the filter box 1 to move along the U-shaped track.

[0042] The U-shaped track moving assembly 56 includes a vertical plate 561 fixed to the top of the filter box 1, and a square plate 562 is provided above the filter box 1. U-shaped bars 563 are fixed on both sides of the square plate 562. The inner surfaces of the two U-shaped bars 563 are slidably connected to sliders 564. One side of the two sliders 564 is fixed with a limit clamp 565. The setting of the limit clamp 565 ensures the stability of the L-shaped rod 52 during movement. The outer surface of the L-shaped rod 52 is slidably connected to the inner surfaces of the two limit clamps 565. The vertical plate 561 is fixed to one side of one of the U-shaped bars 563. One side of the square plate 562 is rotatably connected to a rotating plate 566 through a pin shaft. A moving groove 567 is opened on the rotating plate 566, and a circular plate 568 is fixed to one side of the L-shaped rod 52.

[0043] A boss 569 is fixed to one side of the circular plate 568, and a U-shaped groove 5610 is formed through one side of the square plate 562. One end of the boss 569 passes through the movable groove 567 and the U-shaped groove 5610 and extends to one side of the square plate 562. The boss 569 is adapted to the size of the movable groove 567 and the U-shaped groove 5610. The outer surface of the boss 569 is slidably connected to the inner surface of the movable groove 567 and the U-shaped groove 5610. A horizontal plate 5611 is fixed to one side of the vertical plate 561, and a motor 5612 is fixed to one side of the horizontal plate 5611. The motor 5612 is controlled by an external switch, and Electrically connected to an external power supply, a rotating arm 5613 is fixed to the output end of the motor 5612, one end of the rotating arm 5613 is rotatably connected to a rack 1 5614 through a pin shaft, a gear 1 5615 is fixed to the pin shaft of the rotating plate 566, and the pin shaft of the rotating plate 566 is also rotatably connected to a limiting claw 5616. The setting of the limiting claw 5616 limits the rack 1 5614 to prevent the rack 1 5614 from being separated from the gear 1 5615 during movement. The rack 1 5614 is engaged with the gear 1 5615, and the rack 1 5614 slides inside the limiting claw 5616.

[0044] By setting up the foam puncturing static electricity removal mechanism 5 and utilizing the movement of the L-shaped rod 52, the thorn 57 is driven to move and puncture the foam generated by the stirred polyferric sulfate solution. When the foam bursts, the positive and negative charges on the surface of the liquid film will separate, and the charges will be transferred to the bottom wall of the filter seat 2. Then, by the rolling of the static electricity elimination roller 54, an external high-voltage power supply is used to make the static electricity elimination roller 54 generate a charge opposite to that of the filter seat 2 and the polyferric sulfate colloidal particles, neutralizing the static electricity between the two, weakening the electrostatic adsorption force, and greatly improving the filtration efficiency.

[0045] Example 2

[0046] Based on Example 1, see Figure 6-Figure 9As shown, a foam blowing down assembly 6 is provided on one side of the L-shaped rod 52, and the foam blowing down assembly 6 includes a connecting plate 61 fixed on one side of the L-shaped rod 52, a U-shaped plate 610 is fixed on one side of the connecting plate 61, a rotating rod 62 is rotatably connected between opposite sides of the inner wall of the U-shaped plate 610, a fixed plate 63 is fixed between opposite sides of the inner wall of the U-shaped plate 610, and a plurality of first bevel gears 64 are fixed on the rotating rod 62.

[0047] A plurality of fan blades 66 are rotatably connected to the fixed plate 63 through a driving rod 65. When the fan blades 66 rotate, they can blow air downward, and the foam is blown downward by the blown wind, which makes it convenient to pierce the foam by the thorns 57. A second bevel gear 67 is fixed to the top of the driving rod 65, and the first bevel gear 64 is meshed with the second bevel gear 67. One end of the rotating rod 62 passes through the U-shaped plate 610 and extends to the outside of the U-shaped frame 53. A gear 2 68 is fixed to one end of the rotating rod 62, and a rack 2 69 is fixed to one side of the inner wall of the filter box 1. The gear 2 68 is meshed with the rack 2 69. Specifically, when the gear 2 68 rises to the highest point, it meshes with the rack 2 69.

[0048] Through the setting of the foam blowing down component 6, when the L-shaped rod 52 moves to the left after moving up, it can synchronously drive the foam blowing down component to work, so that the L-shaped rod 52 drives multiple fan blades 66 to work simultaneously during the movement. After the fan blades 66 blow air downward, the foam with a higher accumulation height is completely blown into the filter seat 2. The wind pressure can increase the surface pressure of the foam, which can be punctured by the thorns 57 more quickly, thereby accelerating the efficiency of static elimination.

[0049] An impact acceleration flow component 7 is provided on the L-shaped rod 52 and the filter seat 2. The impact acceleration flow component 7 is used to intermittently impact the inclined bottom wall of the filter box 1 to accelerate the flow and discharge of the polyferric sulfate solution. The impact acceleration flow component 7 includes a cross bar 71 fixed on one side of the L-shaped rod 52, and a U-shaped seat 72 is fixed at one end of the cross bar 71. A movable arm 73 is rotatably connected between the opposite sides of the U-shaped seat 72 by a pin shaft. A movable plate 74 is fixed on one side of the movable arm 73. A limiting plate 75 is fixed to the bottom of the cross bar 71, and a limiting column 76 is fixed to the top of the limiting plate 75. The setting of the limiting plate 75 and the limiting column 76 can lock the movable plate 74 when the movable plate 74 moves upward, and the top plate 78 is lifted by the movable plate 74. After the movable plate 74 moves downward and contacts the top plate 78, the movable plate 74 rotates normally.

[0050] The top of the limiting column 76 is in contact and squeezed with the bottom of the movable plate 74, and the inner surface of the filter seat 2 is slidably connected with a vertical rod 77. The top of the vertical rod 77 is fixed with a top plate 78. The top of the movable plate 74 is in contact and squeezed with the bottom of the top plate 78. The outer surface of the vertical rod 77 is sleeved with a spring 79. The top of the spring 79 is fixed to the bottom of the top plate 78, and the bottom end of the spring 79 is fixed to the top of the filter seat 2. The bottom end of the vertical rod 77 is fixed with an impact plate 710, and the bottom of the impact plate 710 is fixed with multiple impact rods 711. The bottom end of the impact rod 711 is in contact and squeezed with the inclined bottom wall of the filter box 1.

[0051] By setting the impact acceleration flow component 7, when the L-shaped rod 52 moves upward, the movable plate 74 is used to squeeze and lift the top plate 78, so that the spring 79 accumulates force. When the L-shaped rod 52 moves to the left, the movable plate 74 is separated from the top plate 78. At this time, the spring 79 is reset and drives the impact rod 711 to quickly impact the slope of the bottom wall of the filter box 1, creating vibration to accelerate the flow of the filtered polyferric sulfate solution, improve the discharge efficiency of the polyferric sulfate solution, reduce the thickness of the adsorption layer of the polyferric sulfate solution on the slope, and avoid the formation of gel-like deposits on the slope.

[0052] Example 3

[0053] Based on Example 2, see Figures 1-9 As shown, the present invention also discloses a method for producing and filtering polyferric sulfate, which specifically comprises the following steps:

[0054] Step 1: Pour the stirred PFS stock solution into the liquid hopper 8. The stirred PFS stock solution will produce a certain amount of foam. During the PFS production process, when ferrous sulfate reacts with sulfuric acid and oxidants, gases are generated due to the complexity of the chemical reaction and the interaction of the materials. These gases form foam in the liquid. In addition, stirring and aeration operations also cause air to mix into the liquid, promoting the formation of foam. At the same time, the polyferric sulfate product itself has a certain surface activity, which will increase the stability of the foam and make the foam less likely to break, thereby affecting the filtration and other links in the production process. The polyferric sulfate stock solution flows into the filter box 1, and further the polyferric sulfate stock solution flows into the filter cavity 3, and impurities are filtered through the filter hole 4. Since the polyferric sulfate colloidal particles carry a certain charge, and the filter seat 2 will also generate static electricity due to factors such as friction during the filtration process, a strong electrostatic adsorption effect will be generated, so that the colloidal particles are firmly attached to the filter seat 2, increasing the filtration resistance, and starting the motor 5612. The motor 5612 drives the rotating arm 5613 and the rack 5614 to rotate, and then the rack 5614 drives the gear 5615 The gear 1 5615 drives the rotating plate 566 to rotate intermittently in forward and reverse directions, causing the protruding column 569 to slide on the inner surface of the moving groove 567 and the U-shaped groove 5610, thereby driving the L-shaped rod 52 to move along the trajectory of the U-shaped groove 5610. When the L-shaped rod 52 moves to the left at the bottom, it synchronously drives the static elimination roller 54 to roll on the bottom wall of the filter chamber 3. At the same time, the thorn 57 pierces the foam. When the foam bursts, the positive and negative charges on the surface of the liquid film will separate and the charges will be transferred to the filter seat 2. Then, through the rolling of the static elimination roller 54, the external high-voltage power supply causes the static elimination roller 54 to generate a charge opposite to that of the filter seat 2 and the polyferric sulfate colloidal particles, neutralizing the static electricity between the two and weakening the electrostatic adsorption force;

[0055] Step 2: When the L-shaped rod 52 moves upward and then to the left, the second gear 68 contacts and meshes with the second rack 69. As the L-shaped rod 52 moves to the left, the second gear 68 is driven to rotate, and then the second gear 68 drives the rotating rod 62 to rotate, and the rotating rod 62 drives the first bevel gear 64 and the second bevel gear 67 to rotate, and then drives the fan blade 66 to rotate. After the fan blade 66 is started, the higher accumulated foam is blown down quickly, so that all the foam is pressed into the filter seat 2. At the same time, the wind blown by the fan blade 66 also increases the surface pressure of the foam, which can be punctured more quickly by the thorn 57, thereby accelerating the efficiency of static elimination.

[0056] Step 3: After filtration, the polyferric sulfate stock solution flows to the slope of the bottom wall of the filter box 1. During the upward movement of the L-shaped rod 52, the movable plate 74 is used to squeeze and lift the top plate 78, and then the top plate 78 drives the vertical rod 77, the impact plate 710 and the impact rod 711 to move upward, and stretches the spring 79 to store force. When the L-shaped rod 52 moves to the left, the movable plate 74 is separated from the top plate 78. At this time, the spring 79 in the stretched state is reset, driving the impact rod 711 to impact the slope of the bottom wall of the filter box 1 downward, creating vibration to allow the polyferric sulfate stock solution to flow down the slope faster, and finally open the valve to be discharged through the liquid outlet pipe 10.

[0057] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0058] The above embodiments of the invention are described in detail, but the contents are only preferred embodiments of the invention and should not be considered to limit the scope of the invention. All equivalent changes and improvements made within the scope of the invention should still fall within the scope of the invention.

Claims

1. A polyferric sulfate production filtration device, comprising a filter box (1), characterized in that: A filter seat (2) is fixed between the inner walls of the filter box (1), a filter cavity (3) is provided on one side of the top of the filter seat (2), a plurality of filter holes (4) are provided through the bottom of the filter seat (2), and a foam puncturing and static electricity removal mechanism (5) is provided on the filter box (1), and the foam puncturing and static electricity removal mechanism (5) is used to accelerate the puncturing of foam and remove static electricity from the bottom wall of the filter seat (2); The foam puncture static electricity removal mechanism (5) includes a chute (51) extending through the top of the filter box (1), an L-shaped rod (52) being slidably connected to the inner surface of the chute (51), a U-shaped frame (53) being fixed to the bottom end of the L-shaped rod (52), a static electricity elimination roller (54) being rotatably connected between opposite sides of the inner wall of the U-shaped frame (53), a side plate (55) being fixed to one side of the L-shaped rod (52), a spur (57) being fixed to one side of the side plate (55), and the L-shaped rod (52) being driven by a U-shaped track moving assembly (56) on the top of the filter box (1) to move along a U-shaped track; A foam blowing down assembly (6) is provided on one side of the L-shaped rod (52), and the foam blowing down assembly (6) comprises a connecting plate (61) fixed to one side of the L-shaped rod (52), a U-shaped plate (610) is fixed to one side of the connecting plate (61), a rotating rod (62) is rotatably connected between opposite sides of the inner wall of the U-shaped plate (610), a fixing plate (63) is fixed between opposite sides of the inner wall of the U-shaped plate (610), a plurality of first bevel gears (64) are fixed on the rotating rod (62), and the fixing plate (63) is fixed to the opposite sides of the inner wall of the U-shaped plate (610). ) is connected to a plurality of fan blades (66) by a driving rod (65) for rotation, a second bevel gear (67) is fixed to the top end of the driving rod (65), the first bevel gear (64) is meshed with the second bevel gear (67), one end of the rotating rod (62) passes through the U-shaped plate (610) and extends to the outside of the U-shaped frame (53), one end of the rotating rod (62) is fixed with a gear 2 (68), and a rack 2 (69) is fixed to one side of the inner wall of the filter box (1), and the gear 2 (68) is meshed with the rack 2 (69).

2. A polyferric sulfate production filtering device according to claim 1, characterized in that: The U-shaped track moving assembly (56) comprises a vertical plate (561) fixed to the top of the filter box (1); a square plate (562) is provided above the filter box (1); U-shaped bars (563) are fixed on both sides of the square plate (562); the inner surfaces of the two U-shaped bars (563) are slidably connected to sliders (564); one side of the two sliders (564) is fixed with a limit clamp (565); the outer surface of the L-shaped rod (52) is slidably connected to the inner surfaces of the two limit clamps (565); the vertical plate (561) is fixed to one side of one of the U-shaped bars (563); one side of the square plate (562) is rotatably connected to a rotating plate (566) via a pin; a moving groove (567) is provided through the rotating plate (566); and a circular plate (568) is fixed to one side of the L-shaped rod (52).

3. A polyferric sulfate production filtering device according to claim 2, characterized in that: A boss (569) is fixed on one side of the circular plate (568), a U-shaped groove (5610) is formed through one side of the square plate (562), one end of the boss (569) passes through the movable groove (567) and the U-shaped groove (5610) and extends to one side of the square plate (562), the outer surface of the boss (569) is slidably connected to the inner surface of the movable groove (567) and the U-shaped groove (5610), and one end of the vertical plate (561) is fixed on one side of the circular plate (568), and a U-shaped groove (5610) is formed through one end of the boss (569) and the U-shaped groove (5610). A horizontal plate (5611) is fixed on one side of the horizontal plate (5611), a motor (5612) is fixed on one side of the horizontal plate (5611), a rotating arm (5613) is fixed to the output end of the motor (5612), one end of the rotating arm (5613) is rotatably connected to a rack (5614) via a pin shaft, a gear (5615) is fixed on the pin shaft of the rotating plate (566), and the pin shaft of the rotating plate (566) is also rotatably connected to a limiting claw (5616).

4. A polyferric sulfate production filtering device according to claim 3, characterized in that: The rack 1 (5614) is meshed with the gear 1 (5615), and the rack 1 (5614) slides inside the limiting claw (5616). An impact acceleration flow component (7) is provided on the L-shaped rod (52) and the filter seat (2). The impact acceleration flow component (7) is used to intermittently impact the inclined bottom wall of the filter box (1) to accelerate the flow discharge of the polyferric sulfate solution. The impact acceleration flow component (7) includes a cross bar (71) fixed to one side of the L-shaped rod (52), one end of the cross bar (71) is fixed with a U-shaped seat (72), and the opposite sides of the U-shaped seat (72) are connected to a movable arm (73) through a pin shaft. A movable plate (74) is fixed to one side of the movable arm (73), and a limiting plate (75) is fixed to the bottom of the cross bar (71), and a limiting column (76) is fixed to the top of the limiting plate (75).

5. A polyferric sulfate production filtering device according to claim 4, characterized in that: The top end of the limiting column (76) contacts and squeezes the bottom end of the movable plate (74), the inner surface of the filter seat (2) is slidably connected with a vertical rod (77), the top end of the vertical rod (77) is fixed with a top plate (78), the top end of the movable plate (74) contacts and squeezes the bottom end of the top plate (78), the outer surface of the vertical rod (77) is sleeved with a spring (79), the top end of the spring (79) is fixed with the bottom end of the top plate (78), the bottom end of the spring (79) is fixed with the top end of the filter seat (2), and the bottom end of the vertical rod (77) is fixed with an impact plate (710).

6. A polyferric sulfate production filtration device according to claim 5, characterized in that: A plurality of impact rods (711) are fixed to the bottom of the impact plate (710), the bottom ends of the impact rods (711) are in contact with and squeeze the inclined bottom wall of the filter box (1), a liquid hopper (8) is fixed to one side of the filter box (1), four support rods (9) are fixed to the bottom of the filter box (1), and a liquid outlet pipe (10) is connected to one side of the filter box (1).

7. The filtering method for a polyferric sulfate production filtering device according to claim 6, characterized in that: The specific steps include: Step 1: Pour the stirred polyferric sulfate stock solution into the liquid bucket (8). The stirred polyferric sulfate stock solution will produce a certain amount of foam. The polyferric sulfate stock solution flows into the filter box (1). The polyferric sulfate stock solution further flows into the filter cavity (3) and filters impurities through the filter hole (4). The motor (5612) is started. The motor (5612) drives the rotating plate (566) to rotate forward and reverse intermittently, so that the L-shaped rod (52) moves along the trajectory of the U-shaped groove (5610). When the L-shaped rod (52) moves to the left at the bottom, it synchronously drives the static elimination roller (54) to roll on the bottom wall of the filter cavity (3). At the same time, the thorn (57) punctures the foam, and the static adsorption force is weakened by the rolling of the static elimination roller (54); Step 2: When the L-shaped rod (52) moves upward and then moves to the left, the gear 2 (68) contacts and meshes with the rack 2 (69). As the L-shaped rod (52) moves to the left, the gear 2 (68) is driven to rotate, and then the gear 2 (68) drives the rotating rod (62) to rotate, and the rotating rod (62) drives the first bevel gear (64) and the second bevel gear (67) to rotate, and then drives the fan blade (66) to rotate. After the fan blade (66) is started, the higher accumulated foam is blown down quickly, so that all the foam is pressed into the filter seat (2). At the same time, the wind blown by the fan blade (66) also increases the surface pressure of the foam, which can be punctured more quickly by the thorn (57), thereby accelerating the efficiency of static elimination. Step 3: After the polyferric sulfate stock solution is filtered, it flows to the slope of the bottom wall of the filter box (1). During the upward movement of the L-shaped rod (52), the movable plate (74) is used to squeeze and lift the top plate (78), and then the top plate (78) drives the vertical rod (77), the impact plate (710) and the impact rod (711) to move upward, and stretches the spring (79), so that the spring (79) accumulates force. When the L-shaped rod (52) moves to the left, the movable plate (74) is separated from the top plate (78). At this time, the spring (79) in the stretched state is reset, driving the impact rod (711) to impact the slope of the bottom wall of the filter box (1) downward, creating vibration to accelerate the flow of the polyferric sulfate stock solution down the slope, and finally opening the valve to be discharged through the liquid outlet pipe (10).

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