Filtering device and filtering method for production of polymeric ferric sulfate

Abstract

The invention discloses a polymeric ferric sulfate production filtering device and filtering method.The polymeric ferric sulfate production filtering device comprises a filtering box, a filtering base is fixed between the inner walls of the filtering box, a filtering cavity is formed in one side of the top of the filtering base, a plurality of filtering holes are formed in the bottom of the filtering base in a penetrating mode, and a foam puncturing static electricity removing mechanism is arranged on the filtering box; the invention relates to the technical field of polyferric sulfate production. According to the polymeric ferric sulfate production filtering device and filtering method, through the arrangement of the foam puncturing static electricity removing mechanism, the movement of the L-shaped rod is utilized to drive the stabs to move and puncture foams generated by a stirred polymeric ferric sulfate solution, positive and negative charges on the surface of a liquid film can be separated when the foams are broken, and the charges are transferred to the bottom wall of the filtering seat; through rolling of the static electricity eliminating roller, the static electricity eliminating roller generates charges opposite to the filter seat and the polymeric ferric sulfate colloid particles through an external high-voltage power supply, static electricity between the filter seat and the polymeric ferric sulfate colloid particles is neutralized, the static electricity adsorption force is weakened, and the filtering efficiency is greatly improved.

Description

Technical Field

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

[0002] Polyferric sulfate is an efficient inorganic polymer flocculant and has wide applications in the fields such as water treatment. In the production process of polyferric sulfate, filtration is an important link, and its purpose is to remove the impurities generated in the production process to improve the purity and quality of the polyferric sulfate product.

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

[0004] (1) The colloidal particles of polyferric sulfate carry a certain charge, and the filter screen 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 occur, causing the colloidal particles to firmly adhere to the surface of the filter screen, increasing the filtration resistance, and it is difficult to effectively remove by conventional backwashing. The traditional filtering device does not consider the influence of static electricity on filtration and lacks effective means to eliminate electrostatic adsorption;

[0005] (2) After the polyferric sulfate solution is stirred, air is involved in the liquid to form foam. When the foam breaks, the positive and negative charges on the liquid film surface will be separated. Specifically, the colloidal particles (positively charged polyferric sulfate ions) in the foam liquid film will gather towards the bubble interface. When it breaks, some particles are dispersed with the gas phase, and the remaining particles form a charge enrichment layer on the liquid phase surface. If the filter screen material is metal (such as stainless steel) or polymer material (such as PP), when the splashing liquid droplets after the foam breaks collide with the surface of the filter screen, the charge transfer will be further aggravated through friction, resulting in static electricity accumulation on the surface of the filter screen;

[0006] (3) The hydroxy complexes in the polyferric sulfate solution are prone to form an adsorption layer on the surface of the inclined plate metal due to hydrogen bond action. When the liquid film flow rate is slow, the adsorption layer gradually thickens and forms a gel-like accumulation on the inclined plate;

[0007] For this, we propose a filtering device and a filtering method for polyferric sulfate production to solve the above problems. Summary of the Invention

[0008] Aiming at the deficiencies of the prior art, the present invention provides a filtering device and a filtering method for polyferric sulfate production, which solve the problems put forward in the background art.

[0009] To achieve the above object, the present invention is realized through the following technical solutions: A filtration device for the production of polymeric ferric sulfate, comprising a filter box. A filter seat is fixed between the inner walls of the filter box. A filter cavity is provided on one side of the top of the filter seat. A plurality of filter holes are penetrated and opened at the bottom of the filter seat. A foam piercing electrostatic removal mechanism is arranged on the filter box, and the foam piercing electrostatic removal mechanism is used to accelerate the piercing of foam and remove static electricity from the bottom wall of the filter seat.

[0010] The foam piercing electrostatic removal mechanism includes a chute penetrated and opened at the top of the filter box. An L-shaped rod is slidably connected to the inner surface of the chute. A U-shaped frame is fixed to the bottom end of the L-shaped rod. An electrostatic 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. A thorn is fixed to one side of the side plate. The L-shaped rod is driven by a U-shaped track moving component at the top of the filter box to move along a U-shaped track.

[0011] Preferably, the U-shaped track moving component includes a vertical plate fixed to the top of the filter box. A square plate is arranged above the filter box. U-shaped strips are fixed to both sides of the square plate. Sliders are slidably connected to the inner surfaces of the two U-shaped strips. A limiting clip is fixed to one side of each of the two sliders. The outer surface of the L-shaped rod is slidably connected to the inner surfaces of the two limiting clips. The vertical plate is fixed to one side of one of the U-shaped strips. One side of the square plate is rotatably connected by a pin shaft to a rotating plate. A moving groove is penetrated and opened on the rotating plate. A circular plate is fixed to one side of the L-shaped rod.

[0012] Preferably, a convex column is fixed to one side of the circular plate. A U-shaped groove is penetrated and opened on one side of the square plate. One end of the convex column penetrates through the moving groove and the U-shaped groove and extends to one side of the square plate. The outer surface of the convex column is slidably connected to the inner surfaces of the moving groove and the U-shaped groove. A cross plate is fixed to one side of the vertical plate. A motor is fixed to one side of the cross plate. A rotating arm is fixed to the output end of the motor. One end of the rotating arm is rotatably connected by a pin shaft to a first rack. A first gear is fixed to the pin shaft of the rotating plate. A limiting claw is also rotatably connected to the pin shaft of the rotating plate. The first rack is engaged with the first gear, and the first rack slides inside the limiting claw.

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

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

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

[0016] Preferably, the top end of the limiting column contacts and presses against the bottom of the movable plate. A vertical rod is slidably connected to the inner surface of the filter base. A top plate is fixed to the top end of the vertical rod. The top of the movable plate contacts and presses against the bottom of the top plate. A spring is sleeved on the outer surface of the vertical rod. 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 base. An impact plate is fixed to the bottom end of the vertical rod. A plurality of impact rods are fixed to the bottom of the impact plate. The bottom ends of the impact rods contact and press against 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. A liquid outlet pipe is communicated with one side of the filter box.

[0018] The present invention also discloses a polyferric sulfate production filtration method, which specifically includes the following steps:

[0019] Step 1: Pour the stirred polyferric sulfate stock solution into the liquid hopper. A certain amount of foam will be generated in the stirred polyferric sulfate stock solution. The polyferric sulfate stock solution flows into the filter box, and further the polyferric sulfate stock solution flows into the filter cavity, and impurities are filtered through the filter holes. Start the motor, and the motor drives the rotating plate to rotate intermittently forward and backward, so that the L-shaped rod moves along the track of the U-shaped groove. When the L-shaped rod moves leftward at the bottom, it synchronously drives the static eliminator roller to roll on the bottom wall of the filter cavity, and at the same time the spikes pierce the foam. Through the rolling of the static eliminator roller, the static adsorption force is weakened;

[0020] Step 2: When the L-shaped rod moves upward and then leftward, at this time, the second gear contacts and meshes with the second rack. As the L-shaped rod moves leftward, it drives the second gear to rotate. Then, the second gear drives the rotating rod to rotate, and the rotating rod drives the first bevel gear and the second bevel gear to rotate, thereby driving the fan blade to rotate and work. After the fan blade starts, it quickly blows down the piled-up higher foam, so that all the foam is pressed into the filter base. At the same time, the wind blown by the fan blade also increases the surface pressure of the foam, which can be pierced by the barbs more quickly, accelerating the efficiency of static electricity elimination;

[0021] Step 3: After the raw solution of polyferric sulfate is filtered, it flows onto the slope of the bottom wall of the filter tank. During the upward movement of the L-shaped rod, the movable plate is used to squeeze and lift the top plate. Then, the top plate drives the vertical rod, the impact plate and the impact rod to move upward, and stretches the spring, causing the spring to store energy. When the L-shaped rod moves leftward, the movable plate separates from the top plate. At this time, the stretched spring resets, driving the impact rod to impact the slope of the bottom wall of the filter tank downward, creating vibrations to accelerate the flow of the raw solution of polyferric sulfate on the slope. Finally, the valve is opened and discharged through the liquid outlet pipe.

[0022] Beneficial effects

[0023] The present invention provides a polyferric sulfate production filtration device and a filtration method. Compared with the prior art, the following beneficial effects are achieved:

[0024] (1) Through the setting of the foam piercing static electricity removal mechanism, by the movement of the L-shaped rod, the barbs are driven to move and pierce the foam generated by the stirred polyferric sulfate solution. When the foam breaks, the positive and negative charges on the liquid film surface will separate, and the charges are transferred to the bottom wall of the filter base. 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 charges opposite to those of the filter base and the polyferric sulfate colloid particles, neutralizing the static electricity between the two and weakening the static adsorption force, greatly improving the filtration efficiency.

[0025] (2) Through the setting of the foam blowing-down assembly, when the L-shaped rod moves leftward after moving upward, 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 downward, the piled-up higher foam is completely blown into the filter base. The wind pressure can increase the surface pressure of the foam, which can be pierced by the barbs more quickly, accelerating the efficiency of static electricity elimination.

[0026] (3) Through the setting of the impact accelerating flow assembly, during the upward movement of the L-shaped rod, the movable plate is used to squeeze and lift the top plate, causing the spring to store energy. When the L-shaped rod moves leftward, the movable plate separates 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 tank, creating vibrations to accelerate the flow of the filtered polyferric sulfate solution, improving the discharge efficiency of the polyferric sulfate solution, reducing the thickness of the adsorption layer of the polyferric sulfate solution on the slope, and avoiding the formation of gel-like deposits on the slope. Description of the drawings

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

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

[0029] Figure 3 is the three-dimensional partial structure diagram of the present invention;

[0030] Figure 4 is the three-dimensional diagram of the foam piercing electrostatic removal mechanism of the present invention;

[0031] Figure 5 is the three-dimensional Figure 1 ;

[0032] Figure 6 is the three-dimensional Figure 2 ;

[0033] Figure 7 is the three-dimensional diagram of the foam down-blowing component of the present invention;

[0034] Figure 8 is the three-dimensional diagram of the impact acceleration flow component of the present invention;

[0035] Figure 9 of the present invention Figure 8 is the enlarged partial view at position A.

[0036] In the figure: 1, filter box; 2, filter base; 3, filter cavity; 4, filter hole; 5, foam piercing electrostatic removal mechanism; 6, foam down-blowing component; 7, impact acceleration flow component; 8, liquid hopper; 9, support rod; 10, liquid outlet pipe; 51, chute; 52, L-shaped rod; 53, U-shaped frame; 54, static eliminator roller; 55, side plate; 56, U-shaped track moving component; 57, thorn; 561, vertical plate; 562, square plate; 563, U-shaped strip; 564, slider; 565, limit clip; 566, rotating plate; 567, moving groove; 568, circular plate; 569, convex column; 5610, U-shaped groove; 5611, horizontal plate; 5612, motor; 5613, rotating arm; 5614, rack one; 5615, gear one; 5616, limit 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, cross bar; 72, U-shaped seat; 73, movable arm; 74, movable plate; 75, limit plate; 76, limit column; 77, vertical rod; 78, top plate; 79, spring; 710, impact plate; 711, impact rod. Detailed implementation manners

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] The embodiments of the present invention provide three technical solutions, which specifically include the following embodiments:

[0039] Embodiment 1

[0040] Please refer to Figures 1 - 6 , a filtration device for the production of polyferric sulfate, which includes a filter box 1. The bottom wall of the filter box 1 is inclined, which is convenient for the filtered polyferric sulfate solution to flow out quickly along the inclined slope. A rotatable box door is provided on the back of the filter box 1. After opening the box door, the filter seat 2 can be taken out to clean impurities. A filter seat 2 is fixed between the inner walls of the filter box 1. A filter cavity 3 is opened on one side of the top of the filter seat 2. A plurality of filter holes 4 are penetrated through the bottom of the filter seat 2. The polyferric sulfate solution flows into the filter cavity 3 to filter impurities through the filter holes 4. A liquid hopper 8 is fixed on one side of the filter box 1. The liquid hopper 8 is communicated with the filter box 1 through a liquid inlet pipe. Four support rods 9 are fixed at the bottom of the filter box 1. An outlet pipe 10 is communicated with one side of the filter box 1. The outlet pipe 10 is used to discharge the filtered polyferric sulfate solution. A valve is installed on the outlet pipe 10. A foam piercing electrostatic removal mechanism 5 is provided on the filter box 1. The foam piercing electrostatic removal mechanism 5 is used to accelerate the piercing of foam and remove static electricity from the bottom wall of the filter seat 2;

[0041] The foam piercing electrostatic removal mechanism 5 includes a chute 51 penetrated through the top of the filter box 1. The setting of the chute 51 reserves space for the movement of the L-shaped rod 52. The inner surface of the chute 51 is slidably connected with the L-shaped rod 52. The bottom end of the L-shaped rod 52 is fixed with a U-shaped frame 53. An electrostatic elimination roller 54 is rotatably connected between the opposite sides of the inner wall of the U-shaped frame 53. The electrostatic elimination roller 54 is electrically connected to an external high-voltage power supply through a wire. By using the external high-voltage power supply, the electrostatic elimination roller 54 generates charges opposite to those of the filter seat 2 and the polyferric sulfate colloidal particles, neutralizing the static electricity between the two, and weakening the static adsorption force. A side plate 55 is fixed on one side of the L-shaped rod 52. A thorn 57 is fixed on one side of the side plate 55. The setting of the thorn 57 can pierce the foam. The L-shaped rod 52 is driven by a 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. A square plate 562 is arranged above the filter box 1. U-shaped bars 563 are fixed on both sides of the square plate 562. Sliders 564 are slidably connected to the inner surfaces of the two U-shaped bars 563. Limit clips 565 are fixed to one side of the two sliders 564. The setting of the limit clips 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 clips 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 penetrated through the rotating plate 566. A circular plate 568 is fixed to one side of the L-shaped rod 52.

[0043] A convex column 569 is fixed to one side of the circular plate 568. A U-shaped groove 5610 is penetrated through one side of the square plate 562. One end of the convex column 569 penetrates through the moving groove 567 and the U-shaped groove 5610 and extends to one side of the square plate 562. The convex column 569 is adapted to the sizes of the moving groove 567 and the U-shaped groove 5610. The outer surface of the convex column 569 is slidably connected to the inner surfaces of the moving groove 567 and the U-shaped groove 5610. A cross plate 5611 is fixed to one side of the vertical plate 561. A motor 5612 is fixed to one side of the cross plate 5611. The motor 5612 is controlled by an external switch and is 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 first rack 5614 through a pin shaft. A first gear 5615 is fixed to the pin shaft of the rotating plate 566. A limit claw 5616 is also rotatably connected to the pin shaft of the rotating plate 566. The setting of the limit claw 5616 limits the first rack 5614 to prevent the first rack 5614 from disengaging from the first gear 5615 during movement. The first rack 5614 meshes with the first gear 5615, and the first rack 5614 slides inside the limit claw 5616.

[0044] Through the setting of the foam piercing electrostatic removal mechanism 5, by the movement of the L-shaped rod 52, the thorns 57 are driven to move and pierce the foam generated by the stirred polyferric sulfate solution. When the foam breaks, the positive and negative charges on the liquid film surface will be separated, and the charges are transferred to the bottom wall of the filter base 2. Then, through the rolling of the electrostatic elimination roller 54, an external high-voltage power supply is used to make the electrostatic elimination roller 54 generate charges opposite to those of the filter base 2 and the polyferric sulfate colloid particles, neutralize the static electricity between the two, weaken the static adsorption force, and greatly improve the filtration efficiency.

[0045] Example 2

[0046] On the basis of Example 1, see Figures 6 - 9As shown, a foam down-blowing assembly 6 is provided on one side of the L-shaped rod 52. The foam down-blowing assembly 6 includes 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.

[0047] A plurality of fan blades 66 are rotatably connected to the fixing plate 63 through a driving rod 65. When the fan blades 66 rotate, they can blow air downward. The blown air is used to blow the foam downward, which facilitates the foam to be pierced by the spines 57. The top end of the driving rod 65 is fixed with a second bevel gear 67. The first bevel gear 64 meshes 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 second gear 68. A second rack 69 is fixed to one side of the inner wall of the filter box 1. The second gear 68 meshes with the second rack 69. Specifically, the second gear 68 meshes with the second rack 69 when it rises to the highest position.

[0048] Through the setting of the foam down-blowing assembly 6, when the L-shaped rod 52 moves leftward after moving upward, it can drive the foam down-blowing assembly to work synchronously, so that the L-shaped rod 52 drives a plurality of fan blades 66 to work simultaneously during the movement. After the fan blades 66 blow air downward, the foam with a higher stacking height is completely blown into the filter base 2. The wind pressure can increase the surface pressure of the foam, which can be pierced by the spines 57 more quickly, and the efficiency of static electricity elimination is accelerated.

[0049] An impact acceleration flow assembly 7 is provided on the L-shaped rod 52 and the filter base 2. The impact acceleration flow assembly 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 assembly 7 includes a cross bar 71 fixed to one side of the L-shaped rod 52. A U-shaped seat 72 is fixed to one end of the cross bar 71. A movable arm 73 is rotatably connected between opposite sides of the U-shaped seat 72 through a pin shaft. A movable plate 74 is fixed to one side of the movable arm 73. A limiting plate 75 is fixed to the bottom of the cross bar 71. 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. When the movable plate 74 moves downward and contacts the top plate 78, the movable plate 74 rotates normally.

[0050] The top end of the limit post 76 contacts and presses against the bottom of the movable plate 74. A vertical rod 77 is slidably connected to the inner surface of the filter base 2. The top end of the vertical rod 77 is fixed with a top plate 78. The top of the movable plate 74 contacts and presses against the bottom of the top plate 78. A spring 79 is sleeved on the outer surface of the vertical rod 77. The top end 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 base 2. The bottom end of the vertical rod 77 is fixed with an impact plate 710, and a plurality of impact rods 711 are fixed to the bottom of the impact plate 710. The bottom ends of the impact rods 711 contact and press against the inclined bottom wall of the filter tank 1.

[0051] Through the setting of the impact acceleration flow component 7, during the upward movement of the L-shaped rod 52, the movable plate 74 is used to squeeze and lift the top plate 78, so that the spring 79 stores energy. When the L-shaped rod 52 moves leftward, the movable plate 74 is separated from the top plate 78. At this time, the spring 79 resets and drives the impact rod 711 to quickly impact the slope of the bottom wall of the filter tank 1, creating vibration to accelerate the flow of the filtered polyferric sulfate solution, improving the discharge efficiency of the polyferric sulfate solution, reducing the thickness of the adsorption layer on the slope, and preventing the formation of gel-like deposits on the slope.

[0052] Embodiment 3

[0053] Based on Embodiment 2, as shown in Figures 1 - 9 This invention also discloses a polyferric sulfate production filtration method, which specifically includes the following steps:

[0054] Step 1: Pour the stirred polyferric sulfate stock solution into the liquid hopper 8. A certain amount of foam will be generated in the stirred polyferric sulfate stock solution. During the production process of polyferric sulfate, when ferrous sulfate reacts with sulfuric acid, oxidants, etc., due to the complexity of chemical reactions and the interaction of materials, gases will be generated, and these gases will form foam in the liquid. In addition, operations such as stirring and aeration will also mix air into the liquid, promoting foam formation. At the same time, the polyferric sulfate product itself has a certain surface activity, which will also increase the stability of the foam, making the foam not easy to break, thus affecting processes such as filtration during production. The polyferric sulfate stock solution flows into the filter tank 1, and further the polyferric sulfate stock solution flows into the filter chamber 3, and impurities are filtered through the filter holes 4. Since the polyferric sulfate colloidal particles carry a certain charge, and the filter base 2 will also generate static electricity due to factors such as friction during the filtration process, a strong electrostatic adsorption effect will be generated, making the colloidal particles firmly adhere to the inside of the filter base 2, increasing the filtration resistance. Start the motor 5612, the motor 5612 drives the rotating arm 5613 and the first rack 5614 to rotate, and then the first rack 5614 drives the first gear 5615 to rotate intermittently forward and backward. The first gear 5615 drives the rotating plate 566 to rotate intermittently forward and backward, so that the convex column 569 slides on the inner surface of the moving groove 567 and the U-shaped groove 5610, and then drives 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 electricity 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 breaks, the positive and negative charges on the liquid film surface will be separated, and the charges will transfer into the filter base 2. Then, through 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 charges opposite to those of the filter base 2 and the polyferric sulfate colloidal particles, neutralize the static electricity between the two, and weaken the electrostatic adsorption force;

[0055] Step 2: When the L-shaped rod 52 moves upward and then to the left, at this time, the second gear 68 contacts and meshes with the second rack 69. As the L-shaped rod 52 moves to the left, it drives the second gear 68 to rotate, and then the second gear 68 drives the rotating rod 62 to rotate. 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 and work. After the fan blade 66 is started, it quickly blows down the piled-up higher foam, pressing all the foam into the filter base 2. At the same time, the wind blown by the fan blade 66 also increases the surface pressure of the foam, making it easier to be pierced by the thorn 57 and accelerating the efficiency of static electricity elimination;

[0056] Step 3: The raw solution of polyferric sulfate flows to the slope on the bottom wall of the filter tank 1 after filtration. During the upward movement of the L-shaped rod 52, the movable plate 74 is used to squeeze and lift the top plate 78. Then, the top plate 78 drives the vertical rod 77, the impact plate 710, and the impact rod 711 to move upward, and the spring 79 is stretched to store energy. When the L-shaped rod 52 moves leftward, the movable plate 74 separates from the top plate 78. At this time, the spring 79 in the stretched state resets, driving the impact rod 711 to impact downward on the slope of the bottom wall of the filter tank 1 to create vibration, causing the raw solution of polyferric sulfate to flow down the slope at an accelerated speed, and finally opening the valve to discharge through the liquid outlet pipe 10.

[0057] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0058] The above has described the embodiments of the invention in detail, but the described content is only the preferred embodiments of the present invention and cannot be considered as limiting the scope of implementation of the present invention. Any equivalent changes and improvements made within the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. A production filtration device for polyferric sulfate, comprising a filter tank (1), characterized in that: A filter base (2) is fixed between the inner walls of the filter box (1). A filter cavity (3) is formed on one side of the top of the filter base (2). A plurality of filter holes (4) are formed through the bottom of the filter base (2). A foam puncturing and static electricity removing mechanism (5) is arranged on the filter box (1). The foam puncturing and static electricity removing mechanism (5) is used to accelerate the puncturing of foam and remove static electricity from the bottom wall of the filter base (2). The foam puncturing and static electricity removing mechanism (5) includes a chute (51) formed through the top of the filter box (1). An L-shaped rod (52) is slidably connected to the inner surface of the chute (51). A U-shaped frame (53) is fixed to the bottom end of the L-shaped rod (52). An electrostatic elimination roller (54) is rotatably connected between the opposite sides of the inner wall of the U-shaped frame (53). A side plate (55) is fixed to one side of the L-shaped rod (52). A thorn (57) is fixed to one side of the side plate (55). The L-shaped rod (52) is driven by a U-shaped track moving assembly (56) on the top of the filter box (1) to move along a U-shaped track.

2. The production filtration device for polyferric sulfate according to claim 1, characterized in that: The U-shaped track moving assembly (56) includes a vertical plate (561) fixed to the top of the filter box (1). A square plate (562) is arranged above the filter box (1). U-shaped strips (563) are fixed to both sides of the square plate (562). Sliders (564) are slidably connected to the inner surfaces of the two U-shaped strips (563). A limit clip (565) is fixed to one side of each of the two sliders (564). The outer surface of the L-shaped rod (52) is slidably connected to the inner surfaces of the two limit clips (565). The vertical plate (561) is fixed to one side of one of the U-shaped strips (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 formed through the rotating plate (566). A circular plate (568) is fixed to one side of the L-shaped rod (52).

3. The polyferric sulfate production filtration device according to claim 2, characterized in that: A convex column (569) is fixed to 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 convex column (569) passes through the moving groove (567) and the U-shaped groove (5610) and extends to one side of the square plate (562). The outer surface of the convex column (569) is slidably connected to the inner surfaces of the moving groove (567) and the U-shaped groove (5610). A cross plate (5611) is fixed to one side of the vertical plate (561). A motor (5612) is fixed to one side of the cross 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 first rack (5614) through a pin shaft. A first gear (5615) is fixed to the pin shaft of the rotating plate (566). A limit claw (5616) is also rotatably connected to the pin shaft of the rotating plate (566). The first rack (5614) meshes with the first gear (5615), and the first rack (5614) slides inside the limit claw (5616).

4. The polyferric sulfate production filtration device according to claim 1, wherein: One side of the L-shaped rod (52) is provided with a foam down-blowing assembly (6). The foam down-blowing assembly (6) includes a connecting plate (61) fixed to one side of the L-shaped rod (52). One side of the connecting plate (61) is fixed with a U-shaped plate (610). A rotating rod (62) is rotatably connected between the opposite sides of the inner wall of the U-shaped plate (610). A fixing plate (63) is fixed between the 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).

5. The polyferric sulfate production filtration device according to claim 4, characterized in that: A plurality of fan blades (66) are rotatably connected to the fixing plate (63) through a driving rod (65). A second bevel gear (67) is fixed to the top end of the driving rod (65). The first bevel gear (64) meshes with the second bevel gear (67). One end of the rotating rod (62) penetrates through the U-shaped plate (610) and extends to the outside of the U-shaped frame (53). A second gear (68) is fixed to one end of the rotating rod (62). A second rack (69) is fixed to one side of the inner wall of the filter box (1). The second gear (68) meshes with the second rack (69).

6. A polyferric sulfate production filtering device according to claim 1, characterized in that: An impact acceleration flow assembly (7) is provided on the L-shaped rod (52) and the filter base (2). The impact acceleration flow assembly (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 assembly (7) includes a cross bar (71) fixed to one side of the L-shaped rod (52). A U-shaped seat (72) is fixed to one end of the cross bar (71). A movable arm (73) is rotatably connected between the opposite sides of the U-shaped seat (72) through a pin shaft. A movable plate (74) is fixed to one side of the movable arm (73). A limiting plate (75) is fixed to the bottom of the cross bar (71). A limiting column (76) is fixed to the top of the limiting plate (75).

7. A polyferric sulfate production filtration device according to claim 6, characterized in that: The top end of the limiting column (76) contacts and presses against the bottom of the movable plate (74). A vertical rod (77) is slidably connected to the inner surface of the filter base (2). A top plate (78) is fixed to the top end of the vertical rod (77). The top of the movable plate (74) contacts and presses against the bottom of the top plate (78). A spring (79) is sleeved on the outer surface of the vertical rod (77). The top end of the spring (79) is fixed to the bottom of the top plate (78). The bottom end of the spring (79) is fixed to the top of the filter base (2). An impact plate (710) is fixed to the bottom end of the vertical rod (77). A plurality of impact rods (711) are fixed to the bottom of the impact plate (710). The bottom ends of the impact rods (711) contact and press against the inclined bottom wall of the filter box (1).

8. A polyferric sulfate production filtration device according to claim 1, characterized in that: 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). A liquid outlet pipe (10) is communicated with one side of the filter box (1).

9. A method for filtering the production of polymeric ferric sulfate, characterized in that: Specifically, it includes the following steps: Step 1: Pour the stirred polyferric sulfate stock solution into the liquid hopper (8). A certain amount of foam will be generated in the stirred polyferric sulfate stock solution. The polyferric sulfate stock solution flows into the filter box (1), and further into the filter cavity (3), where impurities are filtered through the filter holes (4). Start the motor (5612), and the motor (5612) drives the rotating plate (566) to rotate intermittently forward and backward, causing 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 eliminator roller (54) to roll on the bottom wall of the filter cavity (3). At the same time, the spikes (57) pierce the foam, and through the rolling of the static eliminator roller (54), the static adsorption force is weakened. Step 2: When the L-shaped rod (52) moves upward and then to the left, at this time, the second gear (68) contacts and meshes with the second rack (69). As the L-shaped rod (52) moves to the left, it drives the second gear (68) to rotate. Further, 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, thereby driving the fan blade (66) to rotate and work. After the fan blade (66) is started, the relatively high-piled foam is quickly blown down, causing all the foam to be pressed into the filter base (2). At the same time, the wind blown by the fan blade (66) also increases the surface pressure of the foam, enabling it to be pierced by the spikes (57) more quickly and accelerating the efficiency of static elimination. Step 3: After the polyferric sulfate stock solution is filtered, it flows onto 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). Further, 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), causing the spring (79) to store energy. When the L-shaped rod (52) moves to the left, the movable plate (74) separates from the top plate (78). At this time, the spring (79) in the stretched state returns to its original position, driving the impact rod (711) to strike downward on the slope of the bottom wall of the filter box (1), creating vibrations to accelerate the flow of the polyferric sulfate stock solution on the slope. Finally, the valve is opened and it is discharged through the liquid outlet pipe (10).

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