Polymer colloid particle purification device

Abstract

The invention discloses a polymer colloid particle purification device, and relates to the technical field of water pollution softening water process control systems. A liquid outlet is formed in the upper portion of the softening tank, a liquid inlet is formed in the lower portion of the softening tank, the liquid inlet of the softening tank is connected with a liquid inlet pipe, the liquid inlet pipe is connected with an outlet of a liquid inlet pump, a one-way valve is arranged on the liquid inlet pipe, a bypass pipe is connected to the position, between the one-way valve and the liquid inlet, of the liquid inlet pipe, the bypass pipe is connected with an energy accumulator, and an electromagnetic valve is arranged on the bypass pipe. The invention has the following beneficial effects: the kinetic energy of the energy accumulator and the kinetic energy of the liquid inlet pump are utilized to increase the flow rate of water in the softening tank, and the high-speed water flow enables the blades to rotate and the upper filter plate to rise, so that enough cleaning space is formed among resin particles, the backwashing is thorough and clean, and the problems that the resin particles in the existing softening tank cannot be cleaned thoroughly and the cleaning efficiency is low are solved. And the adsorption ion energy is reduced.

Description

Technical Field

[0001] This invention relates to the field of water pollution softening process control system technology, and more particularly to a polymer colloidal particle purification device. Background Technology

[0002] In the process of water pollution treatment, ion exchange water softeners are a commonly used device. Ion exchange water softeners use high molecular weight resin colloidal particles as an ion exchange bed to remove hardness ions such as calcium and magnesium from the water through ion exchange technology, thereby reducing the hardness of the water. Currently, ion exchange water softeners are usually divided into the following steps when working: water supply, backwashing, salt inlet regeneration, rinsing, and salt tank water supply, which respectively achieve the softening of raw water, the reduction of high molecular weight resin colloidal particles, and the discharge of internal impurities and regeneration waste. During water supply and salt regeneration, the polymer resin colloidal particles may stick together due to prolonged pressure. Impurities in the water adhere to the surface of the polymer resin colloidal particles, reducing their ion adsorption effect. The contact area between the raw water, brine, and polymer resin colloidal particles tends to decrease. Although there is a backwashing step to relax the polymer resin colloidal particles, the effect is not good enough. Therefore, it affects the softening effect of the raw water and the regeneration effect of the polymer resin colloidal particles, resulting in poor softening effect during continuous operation of the equipment. How to control the softening and regeneration of polymer resin colloidal particles to the optimal state is a current challenge for water softening process control systems. Summary of the Invention

[0003] To address the problem of poor softening and regeneration effects of ion exchange water softeners in current water pollution treatment processes, this invention provides a polymer colloidal particle purification device.

[0004] The technical solution provided by this invention is: a polymer colloidal particle purification device, including a softening tank, an outlet at the top of the softening tank, an inlet at the bottom of the softening tank, an inlet pipe connected to the inlet of the softening tank, an outlet pipe connected to the outlet of an inlet pump, a one-way valve on the inlet pipe, a bypass pipe connected between the one-way valve and the inlet of the inlet pipe, an accumulator connected to the bypass pipe, and a solenoid valve on the bypass pipe; The softening tank includes a tank body with an inlet at the bottom and a cover at the top connected by flanges, sealing rings, and bolts. The cover has an outlet. A lower filter plate is fixedly connected to the bottom of the tank body, covering the entire cross-section of the tank body. A support base is fixedly connected to the lower filter plate, located at the center of the tank body. The support base is rotatably connected to a stirring shaft via a bearing. The stirring shaft has a stepped seat on the inner ring of the bearing. A lead screw is machined on the upper part of the stirring shaft. An upper filter plate is provided at the top of the tank body, with a threaded hole machined in the center. The lead screw is threadedly connected to the upper filter plate, which is slidably connected to the inner wall of the tank body. A limiting rod is fixedly connected to the bottom of the cover, not at the center of the tank body. The upper filter plate has a through hole running vertically through it, and the limiting rod passes downward through the through hole of the upper filter plate. The stirring shaft is equipped with blades, which are twisted at a 45° angle to the axis of the stirring shaft. The blades are connected to the stirring shaft via ear plates and pins. The ear plates consist of a U-shaped structure composed of a back plate, a lower support plate, and an upper support plate. The upper and lower support plates have coaxial positioning holes, and the blades have through holes. The pins pass through the upper support plate and the blades and extend out of the lower support plate. A cotter pin is transversely inserted through the pin on the lower side of the lower support plate. The ear plates are welded to the stirring shaft. The welding direction of the ear plates is such that the lower and upper support plates are in a horizontal direction. The back plate has a limiting block on one side of the blades.

[0005] The upper part of the stirring shaft is machined with a lead screw. Instead, the upper part of the stirring shaft is connected to the lead screw through a coaxial reducer. The input shaft of the coaxial reducer is connected to the stirring shaft by bolts, and the output shaft of the coaxial reducer is fixedly connected to the lead screw. The speed ratio of the coaxial reducer is 20 to 30.

[0006] The weight of the upper filter plate and the water resistance during filtration are determined by the following: when the inlet pump is working normally, the upper filter plate falls to the bottom of the lead screw.

[0007] The mounting direction of the back plate of the ear plate and the twisting direction of the blade are as follows: when the liquid rises, the blade is driven to rotate towards the back plate.

[0008] The support base has flow holes around its perimeter.

[0009] The beneficial effects of this invention are as follows: By utilizing the kinetic energy of the inlet pump, a portion of the kinetic energy is charged into the accumulator while softening the contaminated water. Inside the softening tank, a stirring shaft and impeller are installed that can be driven to rotate by high-speed water flow, while remaining stationary during low-speed water flow. An upper filter plate, driven by a screw on the upper part of the stirring shaft, can rise and fall. This allows resin particles to accumulate together during normal softening and regeneration, with low-flow-rate water and brine exchanging ions with the resin particles, extending the reaction time and improving softening and regeneration efficiency. During backwashing, the kinetic energy of the accumulator and the inlet pump is used to increase the water flow rate within the softening tank. The high-speed water flow causes the stirring shaft and impeller to rotate, and the impeller agitates and cleans the resin particles. Simultaneously, the upper filter plate rises, providing sufficient cleaning space between the resin particles, resulting in thorough and clean backwashing. This solves the problem of incomplete cleaning of resin particles and reduced adsorption ion energy in current softening tanks. No additional power is required to maintain the ion adsorption capacity of the resin particles during water softening, improving softening and regeneration effects and extending the lifespan of the resin particles. Attached Figure Description

[0010] Appendix Figure 1 This is a schematic diagram of the structure of the present invention; Appendix Figure 2 This is a schematic diagram of the structure of the softening tank of the present invention; Appendix Figure 3 It is attached Figure 2 AA cross-section view; Appendix Figure 4 It is attached Figure 2 Enlarged view of point B; Appendix Figure 5 This is a schematic diagram of the support base in this invention; Appendix Figure 6 A schematic diagram of the ear plate in this invention.

[0011] In the diagram: 1-Softening tank, 2-Inlet pump, 3-Check valve, 4-Solenoid valve, 5-Accumulator, 6-Outlet, 7-Inlet, 8-Tank body, 9-Top cover, 10-Upper filter plate, 11-Agitator shaft, 12-Lead screw, 13-Coaxial reducer, 14-Impeller, 15-Limit rod, 16-Bearing, 17-Support seat, 1701-Flow hole, 18-Lower filter plate, 19-Pin, 20-Ear plate, 2001-Back plate, 2002-Lower support plate, 2003-Upper support plate, 2004-Limit block, 2005-Positioning hole, 21-Cotter pin, 22-Inlet pipe, 23-Bypass pipe. Detailed Implementation

[0012] like Figures 1-6As shown, the polymer colloidal particle purification device includes a softening tank 1, an outlet 6 at the top of the softening tank 1, an inlet 7 at the bottom of the softening tank 1, an inlet pipe 22 connected to the inlet pipe 22 connected to the outlet of the inlet pump 2, a one-way valve 3 on the inlet pipe 22, a bypass pipe 23 connected between the one-way valve 3 and the inlet 7, an accumulator 5 connected to the bypass pipe 23, and a solenoid valve 4 on the bypass pipe 23. The softening tank 1 includes a tank body 8, with a liquid inlet 7 at the bottom. A top cover 9 is connected to the top of the tank body 8 via a flange, sealing ring, and bolts. The top cover 9 has a liquid outlet 6. A lower filter plate 18 is fixedly connected to the bottom of the tank body 8, covering the entire cross-section of the tank body 8. A support base 17 is fixedly connected to the lower filter plate 18, located at the center of the tank body 8. The support base 17 is rotatably connected to a stirring shaft 11 via a bearing 16. The stirring shaft 11 has a stepped seat within the inner ring of the bearing 16. Above, a lead screw 12 is machined on the upper part of the stirring shaft 11, and an upper filter plate 10 is provided on the upper part of the tank body 8. A threaded hole is machined in the center of the upper filter plate 10. The lead screw 12 is threadedly connected to the upper filter plate 10. The upper filter plate 10 is slidably connected to the inner wall of the tank body 8. A limiting rod 15 is fixedly connected to the bottom of the upper cover 9. The limiting rod 15 is not in the center of the tank body 8. The upper filter plate 10 has a through hole that runs vertically through it. The limiting rod 15 passes downward through the through hole of the upper filter plate 10. The limiting rod 15 prevents the upper filter plate 10 from rotating. The stirring shaft 11 is equipped with a blade 14, which is twisted at a 45° angle to the axis of the stirring shaft 11. The blade 14 is connected to the stirring shaft 11 through a lug plate 20 and a pin 19. The lug plate 20 includes a U-shaped structure composed of a back plate 2001, a lower support plate 2002, and an upper support plate 2003. The upper support plate 2003 and the lower support plate 2002 have coaxial positioning holes 2005. The blade 14 has a through hole. The pin 19 passes through the upper support plate 2003 and the blade 14 and extends out of the lower support plate 2002. The pin 19 has a cotter pin 21 that passes laterally through the lower support plate 2002. The lug plate 20 is welded to the stirring shaft 11. The welding direction of the lug plate 20 is such that the lower support plate 2002 and the upper support plate 2003 are in a horizontal direction. The back plate 2001 has a limiting block 2004 on one side of the blade 14.

[0013] The upper part of the stirring shaft 11 is machined with a lead screw 12. Instead, the upper part of the stirring shaft 11 is connected to the lead screw 12 through a coaxial reducer 13. The input shaft of the coaxial reducer 13 is connected to the stirring shaft 11 by bolts, and the output shaft of the coaxial reducer 13 is fixedly connected to the lead screw 12. The speed ratio of the coaxial reducer 13 is 20 to 30. The coaxial reducer 13 can make the rotation speed of the lead screw 12 less than that of the stirring shaft 11, that is, the speed at which the upper filter plate 10 rises decreases, thereby prolonging the rotation time of the stirring shaft 11 each time the resin particles are cleaned, and extending the cleaning time.

[0014] The weight of the upper filter plate 10 and the water resistance during filtration are as follows: when the inlet pump 2 is working normally, the upper filter plate 10 falls to the bottom of the lead screw 12.

[0015] The mounting direction of the back plate 2001 of the ear plate 20 and the torsion direction of the blade 14 are as follows: when the liquid rises, the blade 14 is driven to rotate in the direction of the back plate 2001.

[0016] The support base 17 has flow holes 1701 around its perimeter.

[0017] The structure of the coaxial reducer 13 is described in the invention patent "Double Helix Non-destructive Mud Lifting Pump" (Announcement No.: CN118148928B).

[0018] During normal softening, the pressure and flow rate of the inlet pump 2 are insufficient to drive the impeller 14 to rotate. Solenoid valve 4 is opened. When the accumulator 5 is saturated, solenoid valve 4 is closed. At this time, the upper filter plate 10 presses against the resin particles, causing the resin particles to accumulate together, thus performing a filtering function while softening. When the resin particles are saturated with calcium and magnesium ions, the external process pipeline is switched to the backwash process. Solenoid valve 4 is then opened. The liquid in the accumulator 5 and the liquid from the inlet pump 2 increase the upward flow velocity of the liquid in the softening tank 1, driving the impeller 14 to rotate. The rotation of the impeller 14 drives... The resin particles in the softening tank 1 rotate, while the stirring shaft 11 drives the lead screw 12 to rotate. The lead screw 12 drives the upper filter plate 10 to rise, making room for the resin particles and allowing them to loosen and be cleaned through collisions. When the energy of the accumulator 5 is exhausted, the liquid flow rate in the softening tank 1 decreases and can no longer drive the blades 14 to rotate. The upper filter plate 10 descends under its own weight, driving the lead screw 12 to rotate in the opposite direction. Due to the action of the ear plate 20, when the stirring shaft 11 rotates in the opposite direction, the blades 14 retract towards the center under the resistance of the water flow, reducing the disturbance to the water flow.

[0019] Repeat the above process several times until the resin particles are cleaned. Then, inject brine into softening tank 1 to regenerate the resin particles.

[0020] By utilizing the kinetic energy of the inlet pump 2, a portion of the kinetic energy is charged into the accumulator 5 during softening. Inside the softening tank 1, a stirring shaft 11 and impeller 14 are installed that can be rotated by high-speed water flow, while remaining stationary during low-speed water flow. An upper filter plate 10, driven by a lead screw 12 on the upper part of the stirring shaft 11, can rise and fall. This allows resin particles to accumulate together during normal softening and regeneration, with low-flow-rate water and brine exchanging ions with the resin particles, extending the reaction time and improving softening and regeneration efficiency. During backwashing, the kinetic energy of the accumulator 5 and the inlet pump 2 is used to increase the water flow rate inside the softening tank 1. The high-speed water flow causes the stirring shaft 11 and impeller 14 to rotate, with the impeller agitating and cleaning the resin particles. Simultaneously, the upper filter plate 10 rises, providing sufficient cleaning space between the resin particles, resulting in thorough and clean backwashing. This solves the problem of incomplete cleaning of resin particles and reduced adsorption ion energy in current softening tanks, without requiring additional power.

Claims

1. A polymer colloidal particle purification device, comprising a softening tank (1), characterized in that: The softening tank (1) has an outlet (6) at the top and an inlet (7) at the bottom. The inlet (7) of the softening tank (1) is connected to the inlet pipe (22). The inlet pipe (22) is connected to the outlet of the inlet pump (2). The inlet pipe (22) is equipped with a check valve (3). A bypass pipe (23) is connected between the check valve (3) and the inlet (7). The bypass pipe (23) is connected to the accumulator (5). The bypass pipe (23) is equipped with a solenoid valve (4). The softening tank (1) includes a tank body (8), with an inlet (7) at the bottom and a cover (9) connected to the top of the tank body (8) via a flange, sealing ring, and bolts. An outlet (6) is provided on the cover (9). A lower filter plate (18) is fixedly connected to the bottom of the tank body (8), covering the entire cross-section of the tank body (8). A support base (17) is fixedly connected to the lower filter plate (18), located at the center of the tank body (8). The support base (17) is rotatably connected to a stirring shaft (11) via a bearing (16). A stepped seat is located on the inner ring of the bearing (16). A lead screw (12) is machined on the upper part of the stirring shaft (11). An upper filter plate (10) is provided on the upper part of the tank (8). A threaded hole is machined in the center of the upper filter plate (10). The lead screw (12) is threadedly connected to the upper filter plate (10). The upper filter plate (10) is slidably connected to the inner wall of the tank (8). A limiting rod (15) is fixedly connected to the bottom of the upper cover (9). The limiting rod (15) is not in the center of the tank (8). The upper filter plate (10) has a through hole that runs vertically through it. The limiting rod (15) passes through the through hole of the upper filter plate (10) downwards. A blade (14) is provided on the stirring shaft (11). The blade (14) is twisted at a 45° angle to the axis of the stirring shaft (11). The blade (14) is connected to the stirring shaft (11) through a lug plate (20) and a pin (19). The lug plate (20) includes a U-shaped structure composed of a back plate (2001), a lower support plate (2002), and an upper support plate (2003). The upper support plate (2003) and the lower support plate (2002) have coaxial positioning holes (2005). The blade (14) The upper part has a through hole, and the pin (19) passes through the upper support plate (2003) and the blade (14) and extends out of the lower support plate (2002). The pin (19) has a cotter pin (21) passing through the lower support plate (2002) laterally. The ear plate (20) is welded to the stirring shaft (11). The welding direction of the ear plate (20) is: the lower support plate (2002) and the upper support plate (2003) are in the horizontal direction. The back plate (2001) has a limiting block (2004) on one side of the blade (14).

2. The polymer colloidal particle purification device according to claim 1, characterized in that: The upper part of the stirring shaft (11) is machined with a lead screw (12), which is replaced by: the upper part of the stirring shaft (11) is connected to the lead screw (12) through a coaxial reducer (13), the input shaft of the coaxial reducer (13) is connected to the stirring shaft (11) by bolts, the output shaft of the coaxial reducer (13) is fixedly connected to the lead screw (12), and the speed ratio of the coaxial reducer (13) is 20 to 30.

3. The polymer colloidal particle purification device according to claim 1, characterized in that: The weight of the upper filter plate (10) and the water resistance during filtration are as follows: when the inlet pump (2) is working normally, the upper filter plate (10) falls to the bottom of the lead screw (12).

4. The polymer colloidal particle purification device according to claim 1, characterized in that: The mounting direction of the back plate (2001) of the ear plate (20) and the torsion direction of the blade (14) are as follows: when the liquid rises, the blade (14) is driven to rotate in the direction of the back plate (2001).

5. The polymer colloidal particle purification device according to claim 1, characterized in that: The support base (17) has flow holes (1701) around its perimeter.

Images