Wastewater purification treatment device and method

Abstract

The present invention relates to the technical field of sewage purification, and in particular to a sewage purification treatment device and method. It comprises an oxidation unit, wherein the output end of the oxidation unit is connected to a flocculation unit, wherein the flocculation unit comprises a plurality of flocculation boxes arranged at equal intervals, wherein the top of the flocculation box is provided with an opening; a rotating rod is rotatably connected to the central axis of the flocculation box; a plurality of torsion springs are distributed in an annular array on the side wall of the rotating rod, wherein a filtrate plate is hinged on the torsion spring, and a floc scraping component is provided just above the opening; the floc scraping component comprises a mounting top plate; a torsion strip is provided at the bottom of the mounting top plate, and a slope is provided at one end of the torsion strip. The present invention can not only realize repeated circulation cleaning of floc impurities in sewage in a limited space, thereby making the flocculation reaction more thorough, but also realize automatic cleaning of the filtrate plate to ensure smooth operation.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage purification, and in particular relates to sewage purification treatment equipment and method. Background Art

[0002] Nowadays, there are many methods for sewage purification, such as flocculation, oxidation, etc. However, a single method can only treat a certain impurity in the sewage. Therefore, when facing industrial sewage, which contains a variety of pollutants and impurities, a comprehensive sewage purification system is required.

[0003] After searching, the cited announcement number is CN114163039B, and the announcement date is April 26, 2022. It is a patent document entitled "A wastewater purification device for concentrated new energy aluminum battery production and its purification method." It includes an oxidation unit and a flocculation unit. The shell of the oxidation unit is a cylindrical structure. The oxidation unit is used to oxidize the wastewater, thereby neutralizing the pH of the wastewater. One end of the shell of the flocculation unit is located directly below the shell of the oxidation unit, and the feed end of the flocculation unit is connected to the discharge end of the oxidation unit. The flocculation unit is used to flocculate harmful substances in the wastewater. The above embodiment avoids the residual flocculent material in the flocculation conveying pipe by spiral conveying, which not only improves the work efficiency, but also reduces the difficulty of subsequent cleaning and maintenance of the flocculation conveying pipe.

[0004] However, the above embodiment still has the following defects:

[0005] The flocculation reaction takes place in a flocculation transport pipe with limited space, and the movement direction of the wastewater and flocculant is unidirectional, which results in limited flocculation reaction time and space, and the inability to proceed reciprocally, resulting in an incomplete reaction and a decline in the quality of purification work. Summary of the invention

[0006] In view of the above problems, the present invention provides a sewage purification treatment device, comprising an oxidation unit, wherein the output end of the oxidation unit is connected to a flocculation unit, wherein the flocculation unit comprises a plurality of flocculation boxes arranged at equal intervals, wherein the top of the flocculation box is provided with an opening; and a rotating rod is rotatably connected to the central axis of the flocculation box;

[0007] A plurality of torsion springs are arranged in a circular array on the side wall of the rotating rod, a filter plate is hinged on the torsion spring, and a scraping component is arranged just above the opening;

[0008] The scraping component comprises a mounting top plate; a twisting strip is provided at the bottom of the mounting top plate, and a slope is provided at one end of the twisting strip; the filtrate plate is slidably fitted with the slope and the side wall of the twisting strip; two sets of first scraping mechanisms are symmetrically provided on both sides of the mounting top plate, and a second scraping mechanism is provided on the side of the first scraping mechanism away from the slope;

[0009] The rotating rod drives each group of filtrate plates to rotate, so that the filtrate plates bring out the flocs in the flocculation box, and then the first scraping mechanism and the second scraping mechanism successively scrape off the flocs of different volumes on the surface of the filtrate plates, ensuring that the filtrate plates will never be blocked while ensuring the flocculation time.

[0010] Furthermore, the oxidation unit includes a mixing box; a fixed ring is arranged directly above the mixing box, the fixed ring is a horizontally arranged circular ring structure, and a reciprocating motor is installed on the fixed ring; an oxidation ball is arranged at the center of the fixed ring, and two groups of ball swing mechanisms are symmetrically arranged on both sides of the oxidation ball, one group of the ball swing mechanisms is transmission-connected to the output end of the reciprocating motor; a water inlet is opened on the outer wall of the oxidation ball.

[0011] Furthermore, a spherical water-absorbing ball is provided at the center of the oxidation ball cavity, and a plurality of groups of oxidation adsorption mechanisms are evenly distributed on the outer wall of the water-absorbing ball, and the other ends of the plurality of groups of oxidation adsorption mechanisms are installed on the inner wall of the oxidation ball.

[0012] Furthermore, a water outlet pipe is provided at the bottom of the water absorbent ball, the output end of the water outlet pipe extends to the outside of the oxidation ball and is connected to a pleated tube, the output end of the pleated tube is connected to the input end of the mixing box; the output end of each group of the oxidation adsorption mechanism is connected to the water outlet pipe; a negative electrode plate is provided on the outer wall of the water absorbent ball; a plurality of groups of positive electrode plates are evenly distributed on the inner wall of the oxidation ball, and each group of the positive electrode plates is located between two adjacent groups of ball swing mechanisms.

[0013] Furthermore, the ball swing mechanism includes a crescent slide and a swing block; the crescent slide is a vertically arranged fan-shaped ring structure, one side of the swing block is installed on the outer wall of the oxide ball, and the other side is slidably connected in the crescent slide, and two groups of hydraulic springs are symmetrically installed at the upper and lower ends of the swing block, and the other ends of the two groups of hydraulic springs are respectively installed on the upper and lower inner walls of the crescent slide.

[0014] Furthermore, a crescent tooth bar of a fan-shaped ring structure is installed on one side wall of the swing block away from the oxide ball; a transmission gear is connected to the output end of the reciprocating motor, and the transmission gear is meshed with the crescent tooth bar.

[0015] Furthermore, the oxidation adsorption mechanism includes a water absorption rod; the two ends of the water absorption rod are respectively installed on the inner wall of the oxidation ball and the outer wall of the water absorption ball; a plurality of groups of arc grooves are distributed in a circular array on the outer wall of the water absorption rod, a water inlet is opened at the center of the arc groove, and the output end of the water inlet is connected to the input end of the water outlet pipe.

[0016] Furthermore, two groups of side plates are symmetrically arranged on both sides of the water inlet, and several groups of catalyst boxes are evenly distributed on the side plates along the length direction. The catalyst boxes are evenly distributed with flow grooves with open structures at both ends, and catalytic holes are opened on the inner walls of the flow grooves.

[0017] Furthermore, the first scraping mechanism includes a fluff collecting box; a fluff inlet is provided on a side wall of the fluff collecting box away from the fan ring plate, an extension plate is obliquely provided at the opening of the fluff inlet along its length direction, and the extension plate extends from the fluff inlet to the side close to the inclined surface.

[0018] A treatment method for sewage purification equipment, the treatment method comprising:

[0019] The sewage is injected into the oxidation unit cavity, and after oxidation treatment, the strongly acidic harmful substances in the sewage undergo catalytic oxidation decomposition, coagulation, adsorption, complexation and replacement reactions, thereby reducing the pH value of the sewage, and after completion, the first semi-finished purified water is obtained;

[0020] Add flocculant in proportion to the first semi-finished product purified water;

[0021] When there is no reaction, the sewage is evenly injected into each group of flocculation boxes for sedimentation treatment for 10-15 minutes;

[0022] After the sedimentation is completed, the corresponding groups of filtrate plates are controlled to rotate clockwise at a uniform speed to remove the impurities that have coagulated into floccules in the sewage, and scrape off the floccules that have been deposited and adsorbed on the inner wall of the flocculant box;

[0023] Repeat the above steps to obtain finished purified water.

[0024] The beneficial effects of the present invention are:

[0025] 1. The rotating rod drives each group of filtrate plates to rotate, and uses the sliding fit with the inner wall of the flocculation box to remove the flocculent impurities in the flocculation box from the sewage. Then the filtrate plates contact the teeth on the first scraping mechanism and the second scraping mechanism in turn, and the large and small flocculent impurities remaining on the two sides of the filtrate plate are scraped off in turn and collected separately. The cleanliness of the filtrate plate surface is ensured. Then, as the rotating rod continues to rotate, the filtrate plate returns to the sewage again. The filtrate holes are prevented from being blocked by flocculent impurities without manual operation. Not only can the repeated circulation cleaning of flocculent impurities in sewage be realized in a limited space, making the flocculation reaction more thorough, but also the automatic classification and collection of flocculent impurities can be realized, thereby reducing labor intensity.

[0026] 2. The oxidation ball is a spherical structure. Each group of water absorption rods is distributed radially, and each group of positive electrode plates and each group of negative electrode plates are located in the gap between two adjacent groups of water absorption rods. Therefore, a grid-like electric field composed of countless ions is formed in the oxidation ball. Then the reciprocating motor drives the transmission gear to rotate forward and reverse at a uniform speed, and the meshing relationship between the transmission gear and the crescent tooth bar allows the swing block to drive the oxidation ball to swing at a uniform speed in the vertical direction. The harmful substances in the sewage will not precipitate. The activated catalyst can be evenly distributed in the oxidation ball, thereby improving the sewage oxidation effect.

[0027] 3. The oxidized harmful substances are intercepted by the screen, while the sewage enters the cavity of the water absorption rod through the water inlet and contacts the pH test sensor. When the pH test sensor detects that the pH of the sewage is less than 6.5, the solenoid valve automatically opens to discharge the sewage. If it is still greater than 6.5, the solenoid valve remains closed, allowing the sewage to return to the oxidation ball cavity and continue to react with the catalyst, ensuring the pH of the discharged sewage. This not only improves the automation of the device, but also avoids the residue of strong acid substances.

[0028] 4. As the filtrate plate rotates, a small amount of sewage will be taken away from the flocculation box and fall into the overflow prevention tank below. Then the sewage overflowing from the overflow prevention tank will be re-input into each group of flocculation boxes through the liquid pump, which not only ensures a clean environment, but also avoids the problem of incomplete sewage reaction.

[0029] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic structural diagram of a purification treatment device according to an embodiment of the present invention is shown.

[0032] Figure 2 A schematic structural diagram of an oxidation unit according to an embodiment of the present invention is shown.

[0033] Figure 3 The figure shows an exploded schematic diagram of an oxidation ball, an oxidation adsorption mechanism and a water-absorbing ball according to an embodiment of the present invention.

[0034] Figure 4 A cross-sectional schematic diagram of a ball swing mechanism according to an embodiment of the present invention is shown.

[0035] Figure 5 A schematic structural diagram of an oxidation adsorption mechanism according to an embodiment of the present invention is shown.

[0036] Figure 6 A schematic structural diagram of a flocculation unit according to an embodiment of the present invention is shown.

[0037] Figure 7 A schematic diagram showing the connection between a permeation box and a flocculation box according to an embodiment of the present invention is shown.

[0038] Figure 8 A schematic diagram of the connection between the rotating rod and the filtrate plate according to an embodiment of the present invention is shown.

[0039] Fig. 9 A schematic exploded view of a scraping component according to an embodiment of the present invention is shown.

[0040] Fig.10 A schematic structural diagram of a first scraping mechanism according to an embodiment of the present invention is shown.

[0041] In the figure: 100, oxidation unit; 110, mixing box; 111, pleated tube; 120, fixing ring; 121, pillar; 130, reciprocating motor; 140, oxidation ball; 141, positive electrode plate; 142, water absorption ball; 143, water outlet pipe; 150, ball swing mechanism; 151, crescent slide; 152, swing block; 153, crescent tooth bar; 154, transmission gear; 155, hydraulic spring; 160, oxidation adsorption mechanism; 161, water absorption rod; 162, arc groove; 163, water inlet; 164, side plate; 165, catalyst box; 200, intermediate tube; 300, flocculation unit; 310, anti-overflow tank; 311, servo motor; 320, infiltration box; 330, flocculation box; 331, opening; 332, rotating rod; 333, sealing bearing; 340, filtrate plate; 341, filtrate hole; 342, filter plate connecting rod; 343, torsion spring; 350, mounting top plate; 360, torsion plate strip; 361, inclined plane; 370, fan ring plate; 380, first scraping mechanism; 381, flocculation box; 382, ​​flocculation inlet; 383, extension plate; 384, teeth; 385, seepage hole; 390, second scraping mechanism; 400, clean water tank. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0043] The embodiment of the present invention provides a sewage purification device, including an oxidation unit 100. For example, Figure 1 As shown, the output end of the oxidation unit 100 is connected to an intermediate pipe 200. The oxidation unit 100 is used to remove strong acid substances in sewage.

[0044] The output end of the intermediate pipe 200 is connected to a flocculation unit 300. The flocculation unit 300 is used to flocculate the remaining harmful substances in the sewage.

[0045] The output end of the flocculation unit 300 is connected to a clean water tank 400. The clean water tank 400 is used to collect the treated clean water.

[0046] The oxidation unit 100 includes a mixing box 110. For example, Figure 2 and Figure 3As shown, the output end of the mixing box 110 is connected to the input end of the intermediate pipe 200. A fixing ring 120 is arranged directly above the mixing box 110. The fixing ring 120 is a horizontally arranged circular ring structure, and the central axis of the fixing ring 120 coincides with the central axis of the mixing box 110. A reciprocating motor 130 is installed on the fixing ring 120. A support 121 is installed between the fixing ring 120 and the mixing box 110. An oxidation ball 140 is arranged at the center of the fixing ring 120. The oxidation ball 140 is a spherical structure. Two groups of ball swing mechanisms 150 are symmetrically arranged on both sides of the oxidation ball 140, and one group of the ball swing mechanisms 150 is transmission-connected to the output end of the reciprocating motor 130. A water inlet is opened on the outer wall of the oxidation ball 140. A spherical water-absorbing ball 142 is provided at the center of the cavity of the oxidation ball 140. Several groups of oxidation adsorption mechanisms 160 are evenly distributed on the outer wall of the water-absorbing ball 142. The main bodies of several groups of oxidation adsorption mechanisms 160 are radially distributed, and the other ends are installed on the inner wall of the oxidation ball 140. A water outlet pipe 143 is provided at the bottom of the water-absorbing ball 142. The output end of the water outlet pipe 143 extends to the outside of the oxidation ball 140 and is connected to a pleated tube 111. The output end of the pleated tube 111 is connected to the input end of the mixing box 110. The output end of each group of oxidation adsorption mechanisms 160 is connected to the water outlet pipe 143. A negative electrode plate is provided on the outer wall of the water-absorbing ball 142. Several groups of positive electrode plates 141 are evenly distributed on the inner wall of the oxidation ball 140. Each group of positive electrode plates 141 is located between two adjacent groups of ball swing mechanisms 150.

[0047] The ball swing mechanism 150 includes a crescent slide 151 and a swing block 152. Figure 4 As shown, the crescent slide 151 is a vertically arranged fan-shaped ring structure, one side of the swing block 152 is installed on the outer wall of the oxide ball 140, and the other side is slidably connected in the crescent slide 151, and two groups of hydraulic springs 155 are symmetrically installed at the upper and lower ends of the swing block 152, and the other ends of the two groups of hydraulic springs 155 are respectively installed on the upper and lower inner walls of the crescent slide 151. A crescent tooth bar 153 of a fan-shaped ring structure is installed on the side wall of the swing block 152 away from the oxide ball 140. A transmission gear 154 is transmission-connected to the output end of the reciprocating motor 130, and the transmission gear 154 is meshed and connected with the crescent tooth bar 153.

[0048] The oxidation adsorption mechanism 160 includes a water absorbing rod 161. For example, Figure 5As shown, the two ends of the water absorption rod 161 are respectively installed on the inner wall of the oxidation ball 140 and the outer wall of the water absorption ball 142. There are several groups of arc grooves 162 distributed in a circular array on the outer wall of the water absorption rod 161, and a water inlet 163 is opened at the center of the arc groove 162. The output end of the water inlet 163 is connected to the input end of the water outlet pipe 143, and a solenoid valve is provided at the junction. A pH test sensor is provided on the inner wall of the water absorption rod 161, and the model of the pH test sensor is JC-PH1B. A screen is provided on the water inlet 163. Two groups of side plates 164 are symmetrically arranged on both sides of the water inlet 163, and several groups of catalyst boxes 165 are evenly spaced along the length direction of the side plates 164. The catalyst boxes 165 are evenly spaced with flow grooves with open structures at both ends, and catalytic holes are opened on the inner wall of the flow groove.

[0049] First, the sewage is injected into the oxidation ball 140, and each group of positive electrode plates 141 and each group of negative electrode plates are turned on, so that each group of positive electrode plates 141 is electrically connected with each group of negative electrode plates. Because each group of positive electrode plates 141 and each group of negative electrode plates are located in the gap between two adjacent groups of water absorption rods 161, a grid-like electric field composed of countless ions is formed in the oxidation ball 140. Because each group of water absorption rods 161 is radially distributed, the grid-like electric field can react with the catalyst box 165 on each group of water absorption rods 161 and activate the catalyst in the catalyst box 165. Then, the reciprocating motor 130 drives the transmission gear 154 to rotate forward and reverse at a uniform speed, and the meshing relationship between the transmission gear 154 and the crescent tooth bar 153 allows the swing block 152 to drive the oxidation ball 140 to swing at a uniform speed in the vertical direction. Thereby, the harmful substances in the sewage will not be precipitated. Then the sewage contacts each group of arc grooves 162 during the flow, and moves along the path of the arc grooves 162 toward the water inlet 163 at the center thereof, and passes through the flow trough during the movement. Then the catalyst seeping out of the catalytic holes reacts with the heavy metal ions, emulsified oil, benzene, toluene and other strongly acidic harmful substances in the sewage to undergo catalytic oxidation decomposition, coagulation, adsorption, complexation and replacement reactions, thereby reducing the pH value of the sewage.

[0050] Harmful substances are intercepted by the screen, while sewage enters the cavity of the water absorption rod 161 through the water inlet 163 and contacts the pH test sensor. When the pH test sensor detects that the pH of the sewage is less than 6.5, the solenoid valve automatically opens to discharge the sewage. If it is still greater than 6.5, the solenoid valve remains closed, allowing the sewage to return to the cavity of the oxidation ball 140 and continue to react with the catalyst until the pH is less than 6.5.

[0051] The flocculation unit 300 includes an overflow prevention tank 310. For example, Figure 6 , Figure 7 and Figure 8 As shown, a servo motor 311 is provided on one side of the overflow prevention pool 310. Several groups of permeate boxes 320 are evenly spaced along the length direction of the overflow prevention pool 310, and the output end of the permeate box 320 is connected to the clean water tank 400. A flocculation box 330 is provided at the top opening of the permeate box 320. The flocculation box 330 is a horizontally arranged cylindrical structure. The input end of the flocculation box 330 is connected to the intermediate pipe 200, and the output end of the flocculation box 330 is connected to the cavity of the permeate box 320. An opening 331 is provided on the top of the flocculation box 330, and a rotating rod 332 is rotatably connected to the central axis of the flocculation box 330. A sealing bearing 333 is provided at the joint between the rotating rod 332 and the inner wall of the flocculation box 330. Several groups of the rotating rods 332 are connected in sequence, and are all transmission-connected to the output end of the servo motor 311. A plurality of filter plate connecting rods 342 are arranged in a circular array on the side wall of the rotating rod 332, and a torsion spring 343 is arranged at the other end of the filter plate connecting rod 342. A filtrate plate 340 is hinged on the torsion spring 343, and a plurality of filtrate holes 341 are evenly distributed on the filtrate plate 340. The end of the filtrate plate 340 away from the torsion spring 343 and the two side walls perpendicular to the torsion spring 343 are slidably fitted with the inner wall of the flocculation box 330. A flocculation scraping component is arranged just above the opening 331.

[0052] The scraping component includes a mounting top plate 350. For example, Fig. 9 As shown, the side cross-section of the mounting top plate 350 is a fan-shaped ring structure. The mounting top plate 350 is mounted just above the opening. A twisting strip 360 is provided at the bottom of the mounting top plate 350. A slope 361 is provided at one end of the twisting strip 360. The filtrate plate 340 is slidably fitted with the slope 361 and the side wall of the twisting strip 360. Two groups of fan ring plates 370 are symmetrically provided on both sides of the mounting top plate 350. A group of first scraping mechanisms 380 are respectively provided on the opposite side walls of the two groups of fan ring plates 370. A second scraping mechanism 390 is provided on the side of the first scraping mechanism 380 away from the slope.

[0053] The first scraping mechanism 380 includes a collecting box 381. Fig.10 As shown, a flocculus inlet 382 is provided on a side wall of the flocculus collecting box 381 away from the fan ring plate 370, and an extension plate 383 is obliquely provided at the opening of the flocculus inlet 382 along its length direction, and the extension plate 383 extends from the flocculus inlet 382 to the side close to the inclined surface 361. A plurality of groups of teeth 384 are evenly spaced on a side wall of the extension plate 383 away from the flocculus inlet 382. A water seepage hole 385 is provided at the bottom of the flocculus collecting box 381.

[0054] Specifically, the fluff collecting box 381, fluff inlet 382, ​​extension plate 383 and water seepage hole 385 of the second fluff scraping mechanism 390 are the same as those of the first fluff scraping mechanism 380, the width of the teeth 384 of the second fluff scraping mechanism 390 is smaller than the width of the teeth of the first fluff scraping mechanism 380, and the distance between two adjacent groups of teeth 384 on the second fluff scraping mechanism 390 is smaller than the distance between two adjacent groups of teeth 384 on the first fluff scraping mechanism 380.

[0055] After the sewage is oxidized, it enters the mixing box 110 through the pleated tube 111, and then the flocculant is put into the mixing box 110 in proportion. When the sewage has not yet reacted, the sewage is uniformly injected into each group of flocculant boxes 330 through the intermediate tube 200. After 10-15 minutes of sedimentation, the servo motor 311 is started, and the servo motor 311 drives each group of rotating rods 332 to rotate, and at the same time as the rotation of each group of rotating rods 332, the corresponding groups of filtrate plates 340 are driven to rotate clockwise at a uniform speed. Since the filtrate plate 340 is away from the end of the torsion spring 343 and the two side walls perpendicular to the torsion spring 343 are slidably fitted with the inner wall of the flocculant box 330, the filtrate plate 340 can not only remove the impurities that have been condensed into flocs in the sewage while rotating, but also scrape off the flocculent impurities precipitated and adsorbed on the inner wall of the flocculant box 330, and the sewage will fall back into the flocculant box 330 through the filtrate hole 341.

[0056] As the filtrate plate 340 continues to move, its surface slides and fits with the inclined surface 361, and under the action of the torsion spring 343, the filtrate plate 340 rotates 90 degrees in the horizontal direction, and under the limiting action of the torsion strip 360, it moves parallel to the length direction path of the mounting top plate 350. In addition, during the movement, the outer walls on both sides of the filtrate plate 340 first slide and fit with the groups of teeth 384 on the two groups of first scraping mechanisms 380, and the larger flocculent impurities are scraped off by these teeth 384, and then as the rotating rod 332 drives the filtrate plate 340 to continue to rotate, the outer walls on both sides of the filtrate plate 340 slide and fit with the groups of teeth 384 of the second scraping mechanism 390, and the smaller flocculent impurities are scraped off by these teeth 384 with narrow width, and then the flocculent impurities enter the floc collecting box 381 through the floc inlet 382 along the inclined path of the extension plate 383. The filtrate plate 340 after the surface is cleaned is separated from the torsion plate 360 ​​as the rotating rod 332 rotates, and is reset under the action of the torsion spring 343 and returns to the sewage, thereby achieving repeated cleaning of flocculent impurities in the sewage.

[0057] Furthermore, a liquid pump is provided at the bottom of the anti-overflow pool 310 , and a liquid pumping pipe is provided at the output end of the liquid pump, and the output end of the liquid pumping pipe is connected to the cavity of each group of flocculation boxes 330 .

[0058] As the filtrate plate 340 rotates, a small amount of sewage will be taken away from the flocculation box 330 and fall into the overflow prevention tank 310 below. The sewage overflowing from the overflow prevention tank 310 is then re-input into each group of flocculation boxes 330 through a pump, which not only ensures a clean environment but also avoids the problem of incomplete sewage reaction.

[0059] The above embodiments have the following beneficial effects:

[0060] 1. The rotating rod 332 drives each group of filtrate plates 340 to rotate, and utilizes the sliding fit relationship between the rotating rod 332 and the inner wall of the flocculation box 330 to remove the flocculent impurities in the flocculation box 330 from the sewage. Then, the filtrate plates 340 successively contact the teeth 384 on the first scraping mechanism 380 and the second scraping mechanism 390, and thereby successively scrape off the large and small flocculent impurities remaining on the two side walls of the filtrate plates 340, and collect them separately. The cleanliness of the surface of the filtrate plates 340 is ensured. Then, as the rotating rod 332 continues to rotate, the filtrate plates 340 return to the sewage again. The clogging of the filtrate holes 341 by flocculent impurities is avoided without manual operation. Not only can the repeated circulation cleaning of flocculent impurities in sewage be realized in a limited space, making the flocculation reaction more thorough, but also the classification and automatic collection of flocculent impurities can be realized, thereby reducing the labor intensity.

[0061] 2. The oxidation ball 140 is a spherical structure, and each group of water absorption rods 161 is radially distributed, and each group of positive electrode plates 141 and each group of negative electrode plates are located in the gap between two adjacent groups of water absorption rods 161. Therefore, a grid-like electric field composed of countless ions is formed in the oxidation ball 140. Then the reciprocating motor 130 drives the transmission gear 154 to rotate forward and reverse at a uniform speed, and then the meshing relationship between the transmission gear 154 and the crescent tooth bar 153 allows the swing block 152 to drive the oxidation ball 140 to swing at a uniform speed in the vertical direction. The harmful substances in the sewage will not precipitate. The activated catalyst can be evenly distributed in the oxidation ball 140, thereby improving the sewage oxidation effect.

[0062] 3. The oxidized harmful substances are intercepted by the screen, while the sewage enters the cavity of the water absorption rod 161 through the water inlet 163 and contacts the pH test sensor. When the pH test sensor detects that the pH of the sewage is less than 6.5, the solenoid valve automatically opens to discharge the sewage. If it is still greater than 6.5, the solenoid valve remains closed, so that the sewage returns to the cavity of the oxidation ball 140 and continues to react with the catalyst, ensuring the pH of the discharged sewage. This not only improves the automation of the device, but also avoids the residue of strong acid substances.

[0063] 4. As the filtrate plate 340 rotates, a small amount of sewage will be taken away from the flocculation box 330 and fall into the overflow prevention tank 310 below. Then, the sewage overflowing from the overflow prevention tank 310 is re-input into each group of flocculation boxes 330 through a liquid pump, which not only ensures a clean environment, but also avoids the problem of incomplete sewage reaction.

[0064] Based on the above-mentioned sewage purification treatment equipment, the embodiment of the present invention further proposes a treatment method for the treatment equipment. Exemplarily, the treatment method includes:

[0065] Sewage is injected into the oxidation ball, and each group of positive electrode plates and each group of negative electrode plates are turned on, so that a grid-like electric field composed of countless ions is formed in the oxidation ball;

[0066] The grid-shaped electric field reacts with the catalytic boxes in each group of radially distributed water-absorbing rods to activate the catalyst in the catalytic box;

[0067] Start the reciprocating motor to drive the transmission gear to rotate forward and reverse at a constant speed, so that the swing block drives the oxidation ball to swing at a constant speed in the vertical direction;

[0068] The sewage flows through the flow tank and reacts with the catalyst, causing the strong acidic harmful substances in the sewage to undergo catalytic oxidation decomposition, coagulation, adsorption, complexation and replacement reactions, thereby reducing the pH of the sewage. After completion, the first semi-finished purified water is obtained;

[0069] The first semi-finished purified water enters the mixing box and is put into the flocculant in proportion;

[0070] When there is no reaction, the sewage is evenly injected into each group of flocculation boxes for sedimentation treatment for 10-15 minutes;

[0071] After the sedimentation is completed, the corresponding groups of filtrate plates are controlled to rotate clockwise at a uniform speed to remove the impurities that have coagulated into floccules in the sewage, and scrape off the floccules that have been deposited and adsorbed on the inner wall of the flocculant box;

[0072] Repeat the above steps to obtain finished purified water.

[0073] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sewage purification treatment device, comprising an oxidation unit (100), wherein the output end of the oxidation unit (100) is connected to a flocculation unit (300), characterized in that: The flocculation unit (300) comprises a plurality of groups of flocculation boxes (330) arranged at equal intervals, and an opening (331) is provided at the top of the flocculation box (330); a rotating rod (332) is rotatably connected to the central axis of the flocculation box (330); A plurality of groups of torsion springs (343) are distributed in an annular array on the side wall of the rotating rod (332); a filtrate plate (340) is hingedly connected to the torsion spring (343); and a scraping component is provided directly above the opening (331); The scraping component comprises a mounting top plate (350); a twisting strip (360) is provided at the bottom of the mounting top plate (350), and a slope (361) is provided at one end of the twisting strip (360); the filtrate plate (340) is slidably fitted with the slope (361) and the side wall of the twisting strip (360); two groups of first scraping mechanisms (380) are symmetrically provided on both sides of the mounting top plate (350), and a second scraping mechanism (390) is provided on the side of the first scraping mechanism (380) away from the slope; The rotating rod (332) drives each group of filtrate plates (340) to rotate, so that the filtrate plates (340) bring out the flocs in the flocculant box (330), and then the first floc scraping mechanism (380) and the second floc scraping mechanism (390) successively scrape off the flocs of different volumes on the surface of the filtrate plates (340), thereby ensuring that the filtrate plates (340) will never be blocked while ensuring the flocculant time.

2. A sewage purification treatment equipment according to claim 1, characterized in that: The oxidation unit (100) comprises a mixing box (110); a fixing ring (120) is arranged directly above the mixing box (110); the fixing ring (120) is a horizontally arranged circular ring structure, and a reciprocating motor (130) is installed on the fixing ring (120); an oxidation ball (140) is arranged at the center of the fixing ring (120), and two groups of ball swing mechanisms (150) are symmetrically arranged on both sides of the oxidation ball (140), one group of the ball swing mechanisms (150) is drivingly connected to the output end of the reciprocating motor (130); and a water inlet is opened on the outer wall of the oxidation ball (140).

3. A sewage purification treatment equipment according to claim 2, characterized in that: A water-absorbing ball (142) with a spherical structure is provided at the center of the cavity of the oxidation ball (140), and a plurality of groups of oxidation adsorption mechanisms (160) are evenly distributed on the outer wall of the water-absorbing ball (142), and the other ends of the plurality of groups of oxidation adsorption mechanisms (160) are mounted on the inner wall of the oxidation ball (140).

4. A sewage purification treatment equipment according to claim 3, characterized in that: A water outlet pipe (143) is provided at the bottom of the water absorbing ball (142), the output end of the water outlet pipe (143) extends to the outside of the oxidation ball (140) and is connected to a pleated tube (111), the output end of the pleated tube (111) is connected to the input end of the mixing box (110); the output end of each group of the oxidation adsorption mechanism (160) is connected to the water outlet pipe (143); a negative electrode plate is provided on the outer wall of the water absorbing ball (142); a plurality of groups of positive electrode plates (141) are evenly distributed on the inner wall of the oxidation ball (140), and each group of the positive electrode plates (141) is located between two adjacent groups of ball swing mechanisms (150).

5. A sewage purification treatment equipment according to claim 2, characterized in that: The ball swing mechanism (150) comprises a crescent slide (151) and a swing block (152); the crescent slide (151) is a vertically arranged fan-shaped structure; one side of the swing block (152) is mounted on the outer wall of the oxidized ball (140), and the other side is slidably connected in the crescent slide (151); two groups of hydraulic springs (155) are symmetrically mounted at the upper and lower ends of the swing block (152); the other ends of the two groups of hydraulic springs (155) are respectively mounted on the upper and lower inner walls of the crescent slide (151).

6. A sewage purification treatment equipment according to claim 5, characterized in that: A crescent tooth bar (153) of a fan-shaped ring structure is installed on a side wall of the swing block (152) away from the oxide ball (140); a transmission gear (154) is transmission-connected to the output end of the reciprocating motor (130), and the transmission gear (154) is meshingly connected to the crescent tooth bar (153).

7. The sewage purification equipment according to claim 3, characterized in that: The oxidation adsorption mechanism (160) comprises a water absorption rod (161); two ends of the water absorption rod (161) are respectively mounted on the inner wall of the oxidation ball (140) and the outer wall of the water absorption ball (142); a plurality of groups of arc grooves (162) are distributed in a circular array on the outer wall of the water absorption rod (161); a water inlet (163) is provided at the center of the arc groove (162); and the output end of the water inlet (163) is connected to the input end of the water outlet pipe (143).

8. A sewage purification treatment equipment according to claim 7, characterized in that: Two groups of side plates (164) are symmetrically arranged on both sides of the water inlet (163); a plurality of groups of catalyst boxes (165) are evenly spaced along the length direction of the side plates (164); liquid flow grooves with open structures at both ends are evenly spaced on the catalyst boxes (165); and catalytic holes are opened on the inner walls of the liquid flow grooves.

9. The sewage purification equipment according to claim 1, characterized in that: The first fluff scraping mechanism (380) comprises a fluff collecting box (381); a fluff inlet (382) is provided on a side wall of the fluff collecting box (381) away from the fan ring plate (370); an extension plate (383) is obliquely provided at the opening of the fluff inlet (382) along its length direction; the extension plate (383) extends from the fluff inlet (382) to a side close to the inclined surface (361).

10. A treatment method applied to the sewage purification treatment equipment according to any one of claims 1 to 9, characterized in that: The processing method comprises: The sewage is injected into the oxidation unit cavity, and after oxidation treatment, the strongly acidic harmful substances in the sewage undergo catalytic oxidation decomposition, coagulation, adsorption, complexation and replacement reactions, thereby reducing the pH value of the sewage, and after completion, the first semi-finished purified water is obtained; Add flocculant in proportion to the first semi-finished product purified water; When there is no reaction, the sewage is evenly injected into each group of flocculation boxes for sedimentation treatment for 10-15 minutes; After the sedimentation is completed, the corresponding groups of filtrate plates are controlled to rotate clockwise at a uniform speed to remove the impurities that have coagulated into floccules in the sewage, and scrape off the floccules that have been deposited and adsorbed on the inner wall of the flocculant box; Repeat the above steps to obtain finished purified water.

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