A vertical flow multi-stage reaction precipitator

Abstract

The present invention relates to a reaction precipitator, and in particular to a vertical flow multi-stage reaction precipitator. In the prior art, the reaction and precipitation time is too long and the work efficiency is low. The technical scheme is: a vertical flow multi-stage reaction precipitator, including an outer cylinder, an inner cylinder and a middle cylinder, etc.; the inner cylinder is fixedly connected to the inner cylinder, and a water injection port is arranged at the lower part of the inner cylinder; the middle cylinder is fixedly connected to the inner cylinder, and the middle cylinder is located outside the inner cylinder. After the water flow overflows from the upper part of the inner cylinder, it flows downward in a "Z" shape along the conical guide ring, the inner wall of the middle cylinder, the circular ring, the interception ring and the inner wall of the inner cylinder in sequence. The water flow flows smoothly as a whole, and there will be no straight fall phenomenon. At the same time, the fourth cavity is separated by the conical cover, so that the fourth cavity is separated into two upper and lower precipitation areas. The water flow output from the one-way valve will only flow in the lower precipitation area, and will not affect the precipitation of the upper precipitation area. In this way, the problem of too long reaction and precipitation time and low work efficiency in the prior art is solved.

Description

Technical Field

[0001] The invention relates to a reaction precipitator, in particular to a vertical flow multi-stage reaction precipitator. Background Art

[0002] Due to the continuous input of sewage into the existing vertical flow reaction sedimentation tank, the sedimentation effect inside the sedimentation tank will be affected, and the suspended matter and flocculants in the sewage will be easily stirred. The water flow needs to reach a greater depth to achieve a better sedimentation effect. The reaction and sedimentation time is too long and the work efficiency is low.

[0003] Furthermore, since the existing vertical flow reaction sedimentation tank needs to be kept in working state at all times, the reaction and sedimentation work cannot be carried out simultaneously when the sewage inside the sedimentation tank is discharged. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, that is, the reaction and precipitation time is too long, the working efficiency is low, and the reaction and precipitation work cannot be carried out synchronously when the sewage inside the precipitator is discharged, the present invention provides a vertical flow multi-stage reaction precipitator.

[0005] The technical implementation scheme of the present invention is: a vertical flow multi-stage reaction precipitator, comprising an outer cylinder, an inner cylinder and a middle cylinder; the inner cylinder is fixedly connected to the inside of the outer cylinder, and a water injection port is arranged at the lower part of the inner cylinder; the middle cylinder is fixedly connected to the inside of the outer cylinder, and the middle cylinder is located on the outside of the inner cylinder; a water extraction port is arranged at the upper part of the outer cylinder; it also includes a conical guide ring, an interception ring, a circular ring, a mounting plate and a one-way valve; a conical guide ring is arranged at the upper part of the inner cylinder, and the upper surface of the conical guide ring is flush with the upper surface of the inner cylinder; the inner cylinder is arranged with an interception ring; the interception ring is arranged with a first contraction part, and a plurality of gaps are formed between the first contraction part and the inner cylinder; the inner wall of the middle cylinder and the outer side of the interception ring are connected with a circular ring; the mounting plate is fixedly connected to the bottom of the middle cylinder; the mounting plate is arranged with a plurality of one-way valves; a first cavity is formed between the conical guide ring and the circular ring; a second cavity is formed between the circular ring and the mounting plate; a third cavity is formed between the conical cover and the inner bottom of the outer cylinder.

[0006] Furthermore, it also includes a cone cover; the cone cover is fixedly connected to the lower part of the outer surface of the middle cylinder, and the lower part of the cone cover is close to the inner wall of the outer cylinder.

[0007] Furthermore, it also includes an electric push rod and a connecting ring; the first contraction portion of the interception ring is slidably connected to the outer wall of the inner tube; the interception ring and the circular ring are movably connected; a number of electric push rods are installed on the inner wall of the middle tube; the telescopic portions of all the electric push rods are commonly fixedly connected to a connecting ring, and the connecting ring is fixedly connected to the lower surface of the interception ring.

[0008] Furthermore, the intercepting ring and the circular ring are connected in a snap-fitting manner; the circular ring is configured to be made of a deformable material, and the deformation state is fixed.

[0009] Furthermore, the first contraction portion on the interception ring is made of an airbag material, which can shrink or expand to make the gap larger or smaller; the circular ring is provided with a plurality of air outlets distributed in a circular array; the circular ring is provided with a first air pipe, and the first air pipe passes through the middle tube and the outer tube in sequence and is connected to a pump; the interception ring is provided with a plurality of air inlet holes distributed in a circular array, and when the interception ring and the circular ring are engaged, the air inlet holes are connected to the air outlet holes.

[0010] Furthermore, it also includes an opening and closing airbag and a sewage extraction pipe; an opening and closing airbag is fixedly connected to the inner wall of the middle tube, and the opening and closing airbag is annular, and the inner annular surface of the opening and closing airbag is in contact connection with the outer wall of the inner tube; a fourth cavity is formed between the circular ring and the opening and closing airbag; the opening and closing airbag is provided with a second air supply pipe, and the second air supply pipe passes through the middle tube and the outer tube in sequence and is connected to an external air pump; the opening and closing airbag drives the inner annular surface to be provided with a second contraction portion, and the second contraction portion is in contact connection with the outer wall of the inner tube.

[0011] Furthermore, it also includes a dirt removal mechanism, which includes an annular guide rail, a moving block, a connecting rod, a baffle, a scraper and a scraper block; the upper part of the middle cylinder is fixedly connected to the annular guide rail; the annular guide rail is slidably connected to the moving block; the moving block is fixedly connected to the connecting rod; the connecting rod is fixedly connected to the baffle; the baffle is fixedly connected to the scraper, and the scraper is in contact with the outer surface of the conical guide ring; the scraper is fixedly connected to the scraper block, and the scraper block is in contact with the outer surface of the conical guide ring.

[0012] Furthermore, it also includes a receiving strip, the scraper block is fixedly connected with the receiving strip, and the lower surface of the receiving strip is flush with the lower surface of the conical guide ring, and the receiving strip is in contact with the outer wall of the conical guide ring, and the receiving strip is in contact with the inner wall of the middle tube.

[0013] Furthermore, the baffle is configured as an arc-shaped structure, and the curvature of the baffle is consistent with the circular curvature of the inner cylinder.

[0014] Furthermore, the inner cylinder is rotatably connected to the conical guide ring, and the conical guide ring is provided with a driving motor.

[0015] The present invention has the following advantages: after overflowing from the upper part of the inner cylinder, the water flows downward in a "Z" shape along the conical guide ring, the inner wall of the middle cylinder, the circular ring, the interception ring and the inner wall of the inner cylinder in sequence. The water flows smoothly as a whole and there is no phenomenon of water falling straight down. At the same time, the fourth cavity is separated by the conical cover so that the fourth cavity is separated into two upper and lower sedimentation areas. The water output from the one-way valve will only flow in the lower sedimentation area and will not affect the sedimentation in the upper sedimentation area. In this way, the problem in the prior art that the continuous input of sewage will affect the sedimentation effect inside the sedimentator, easily causing the suspended matter and flocculants in the sewage to be stirred, requiring the water flow to reach a greater depth to achieve a better sedimentation effect, and the reaction and sedimentation time is too long, resulting in low working efficiency is solved.

[0016] The present invention expands the second contraction part of the opening and closing airbag toward the inner tube, so that the second contraction part is close to the outer wall of the inner tube, and a fourth cavity is formed between the circular ring and the opening and closing airbag. The dirt flowing down from the top is intercepted and collected by the fourth cavity to prevent the dirt from flowing into the second cavity and affecting the cleanliness of the second cavity. In this way, when the fourth cavity is discharged, it will not affect the water flow output from the second cavity to the third cavity. In this way, the discharge work and the reaction and precipitation work are carried out simultaneously, which solves the problem in the prior art that when the sewage is discharged from the inside of the precipitator, the reaction and precipitation work cannot be carried out simultaneously.

[0017] The present invention blows air flow toward the outer wall of the inner cylinder through the air outlet, and the air flow impacts the flocculants adhered to the outer wall of the inner cylinder, so that they can smoothly fall downward into the fourth cavity, thereby achieving a cleaning effect on the flocculants adhered to the outer wall of the inner cylinder; at the same time, since the circular ring is in a cone shape with a larger upper part and a smaller lower part, the water flow passing through the circular ring will be more turbulent and have a greater impact force, so that the intercepting ring, the circular ring and its connecting parts can be washed by the water flow of this part, and the flocculants adhered to the outer wall of the inner cylinder can also be flushed. In this way, through the multiple impacts of the air flow and the water flow, the flocculants adhered to the outer wall of the inner cylinder can be better removed.

[0018] The present invention rotates the conical guide ring clockwise from top to bottom, so that the water overflowing from the inner cylinder can be thrown directly onto the inner wall of the middle cylinder along the outer surface of the conical guide ring. Therefore, even if more floccules appear in some areas of the outer surface of the conical guide ring, the water can be thrown out in a dispersed state without forming a strand of water flow, thereby avoiding the problem of increased impact force of the water flow, which impacts the floccules below and affects the water purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure disclosed by the vertical flow multi-stage reaction precipitator of the present invention;

[0020] Figure 2 A structural cross-sectional view of the first type of vertical flow multi-stage reaction precipitator disclosed in the present invention;

[0021] Figure 3 A structural cross-sectional view of the second type of vertical flow multi-stage reaction precipitator disclosed in the present invention;

[0022] Figure 4 A structural cross-sectional view of the third type of vertical flow multi-stage reaction precipitator disclosed in the present invention;

[0023] Figure 5 An exploded view of an interception ring and a circular ring disclosed in the vertical flow multi-stage reaction precipitator of the present invention;

[0024] Figure 6It is a schematic structural diagram of the inner cylinder and the circular ring disclosed in the vertical flow multi-stage reaction precipitator of the present invention;

[0025] Figure 7 It is a structural separation state diagram of the inner cylinder, interception ring and circular ring disclosed in the vertical flow multi-stage reaction precipitator of the present invention;

[0026] Figure 8 It is a structural separation state diagram of the interception ring and the circular ring disclosed in the vertical flow multi-stage reaction precipitator of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the opening and closing air bag, the sewage extraction pipe, the mounting plate and the one-way valve disclosed in the vertical flow multi-stage reaction precipitator of the present invention;

[0028] Fig.10 It is a schematic structural diagram of the inner cylinder and the opening and closing air bag disclosed in the vertical flow multi-stage reaction precipitator of the present invention;

[0029] Fig.11 The present invention is a schematic structural diagram of a dirt removal mechanism disclosed in the vertical flow multi-stage reaction precipitator.

[0030] The meaning of the reference numerals in the figure: 1-outer cylinder, 2-inner cylinder, 3-middle cylinder, 4-conical guide ring, 5-interception ring, 6-circular ring, 7-opening and closing air bag, 8-sewage suction pipe, 9-mounting plate, 10-one-way valve, 101-electric push rod, 102-connecting ring, 201-conical cover, 301-annular guide rail, 302-moving block, 303-connecting rod, 304-blocking bar, 305-scraper, 306-scraper block, 307-supporting bar, 1a-water suction port, 5a-air inlet, 5b-first contraction part, 5c-gap, 6b-air outlet, 6c-first air supply pipe, 7a-second air supply pipe, 7b-second contraction part, 100-first cavity, 200-second cavity, 300-third cavity, 400-fourth cavity. DETAILED DESCRIPTION

[0031] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] Example 1

[0033] A vertical flow multi-stage reaction precipitator, such as Figure 1-11As shown, it includes an outer tube 1, an inner tube 2 and a middle tube 3; the inner tube 2 is connected to the outer tube 1 by bolts, and a water injection port is arranged at the lower part of the inner tube 2; the inner tube 1 is connected to the middle tube 3 by bolts, and the middle tube 3 is located outside the inner tube 2; a water extraction port 1a is arranged at the upper part of the outer tube 1, and the upper clear liquid in the outer tube 1 is extracted through the water extraction port 1a;

[0034] It also includes a conical guide ring 4, an interception ring 5, a circular ring 6, a mounting plate 9 and a one-way valve 10; a conical guide ring 4 is arranged on the upper part of the inner cylinder 2, and the upper surface of the conical guide ring 4 is flush with the upper surface of the inner cylinder 2; the inner cylinder 2 is provided with an interception ring 5; the interception ring 5 is provided with a first contraction part 5b, and a plurality of gaps 5c are formed between the first contraction part 5b and the inner cylinder 2; the inner wall of the middle cylinder 3 and the outer side of the interception ring 5 are connected with a circular ring 6, and the water flow is guided by the position coordination of the middle cylinder 3, the conical guide ring 4, the interception ring 5 and the circular ring 6, so that it is affected by the conical guide ring 4. After being guided, it flows downward along the inner wall of the middle tube 3, and is then guided by the ring 6 to pass through the gap 5c, and then flows downward along the outer wall of the inner tube 2, so that the water flow flows in a "Z" shape, and the water flow is turned back many times to reduce the impact force of the water flow; the bottom of the middle tube 3 is bolted with a mounting plate 9; the mounting plate 9 is provided with a plurality of one-way valves 10; a first cavity 100 is formed between the conical guide ring 4 and the ring 6; a second cavity 200 is formed between the ring 6 and the mounting plate 9; a third cavity 300 is formed between the conical cover 201 and the inner bottom of the outer tube 1.

[0035] It also includes a conical cover 201; the conical cover 201 is bolted to the lower part of the outer surface of the middle cylinder 3, and the lower part of the conical cover 201 is close to the inner wall of the outer cylinder 1; the water flow output from the one-way valve 10 is blocked by the conical cover 201, so that after the water flow is output from the one-way valve 10, it can only flow upward through the gap 5c between the conical cover 201 and the inner wall of the outer cylinder 1, preventing it from stirring the clear liquid located on the upper part of the conical cover 201.

[0036] The anti-agitation work of the present invention is specifically as follows:

[0037] First, water to be purified is injected into the inner tube 2 through the water injection port at the lower part of the inner tube 2, so that the water to be purified slowly overflows in the inner tube 2, and a coagulant is added into the inner tube 2, so that the coagulant is mixed with the water to be purified in the inner tube 2 and reacts;

[0038] Subsequently, the water is allowed to continue to overflow, and the water mixed with the coagulant overflows from the upper opening of the inner tube 2, and flows along the inclined surface of the conical guide ring 4 to the inner wall of the middle tube 3, and the water mixed with the coagulant flows downward along the inner wall of the middle tube 3. When it flows to the first cavity 100 and contacts the circular ring 6 and the interception ring 5, it flows into the gap 5c along the guidance of the circular ring 6 and the interception ring 5, and flows downward along the gap 5c and the outer wall of the inner tube 2 to the second cavity 200 between the circular ring 6 and the mounting plate 9. This process In the process, the water flows in a "Z" shape, and then the water slowly accumulates in the second cavity 200. When the water in the second cavity 200 accumulates close to the lower surface of the ring 6, the one-way valve 10 on the mounting plate 9 is controlled to transport the water in the second cavity 200 to the third cavity 300 below the mounting plate 9, so that the water reaches the outer cylinder 1, and slowly settles and overflows in the outer cylinder 1, so that the clear liquid and the flocculants are layered. When the clear liquid overflows to the height of the pumping port 1a, the upper clear liquid can be pumped out through the pumping port 1a.

[0039] When the one-way valve 10 transfers the water in the second cavity 200 to the third cavity 300 below the mounting plate 9, the water flow output from the one-way valve 10 is blocked by the conical cover 201, so that the water flow can only flow upward through the gap 5c between the conical cover 201 and the inner wall of the outer cylinder 1 after being output from the one-way valve 10, thereby preventing the water flow from stirring the clear liquid located on the upper part of the conical cover 201;

[0040] In this way, after overflowing from the upper part of the inner tube 2, the water flows downward in a "Z" shape along the conical guide ring 4, the inner wall of the middle tube 3, the circular ring 6, the intercepting ring 5 and the inner wall of the inner tube 2 in sequence. The water flows smoothly as a whole, and there is no straight-falling phenomenon. At the same time, the fourth cavity 400 is separated by the conical cover 201, so that the fourth cavity 400 is separated into two upper and lower sedimentation areas. The water output from the one-way valve 10 will only flow in the lower sedimentation area and will not affect the sedimentation in the upper sedimentation area. In this way, the problem in the prior art that the continuous input of sewage will affect the sedimentation effect inside the sedimentator, easily causing the suspended matter and flocculants in the sewage to be stirred, requiring the water flow to reach a greater depth to achieve a better sedimentation effect, and the reaction and sedimentation time is too long, resulting in low working efficiency is solved.

[0041] It should be noted that, in the process of "Z"-shaped flow, when the water flows through the gap 5c, since the coagulant and the water to be purified have begun to mix and react in the inner cylinder 2, there must be some clumping flocs in the water overflowing from the inner cylinder 2, and the clumping flocs are limited by the gap 5c and cannot flow downward smoothly through the gap 5c. They are intercepted in the first cavity 100 by the gap 5c, reducing the output of the flocs to the second cavity 200 and the third cavity 300 below, thereby reducing the floc content in the second cavity 200 and the third cavity 300 and improving the water purification effect.

[0042] Example 2

[0043] On the basis of Example 1, Figure 4-5 As shown, it also includes an electric push rod 101 and a connecting ring 102; the first contraction portion 5b of the interception ring 5 is slidably connected to the outer wall of the inner tube 2; the interception ring 5 and the circular ring 6 are movably connected; at least two electric push rods 101 are installed on the inner wall of the middle tube 3; the telescopic portions of all the electric push rods 101 are commonly fixedly connected to a connecting ring 102, and the connecting ring 102 is fixedly connected to the lower surface of the interception ring 5, and the connecting ring 102 and the interception ring 5 are driven downward by the telescopic portion of the electric push rod 101, so that a flow space appears between the interception ring 5 and the circular ring 6.

[0044] The interception ring 5 and the circular ring 6 are connected by snap-fitting; the circular ring 6 is set to be a deformable material, and the deformation state is fixed; the circular ring 6 is driven downward by the interception ring 5 to deform the circular ring 6 from a ring shape to a cone shape.

[0045] The first contraction portion 5b on the interception ring 5 is set to be an airbag material, which can shrink or expand to make the gap 5c larger or smaller; the circular ring 6 is provided with at least four air outlet holes 6b distributed in a circular array; the circular ring 6 is provided with a first air supply pipe 6c, and the first air supply pipe 6c passes through the middle tube 3 and the outer tube 1 in turn and is connected to a pump; the interception ring 5 is provided with at least four air inlet holes 5a distributed in a circular array, and when the interception ring 5 and the circular ring 6 are engaged, the air inlet hole 5a is connected with the air outlet hole 6b, and gas is injected into the interception ring 5 through the air outlet hole 6b and the air inlet hole 5a in turn, so that the first contraction portion 5b expands inward.

[0046] The invention also includes an opening and closing airbag 7 and a sewage extraction pipe 8; the inner wall of the middle tube 3 is fixedly connected with the opening and closing airbag 7, and the opening and closing airbag 7 is annular, and the inner annular surface of the opening and closing airbag 7 is in contact with the outer wall of the inner tube 2; the ring 6 and the opening and closing airbag 7 together form a fourth cavity 400; the opening and closing airbag 7 is provided with a second air delivery pipe 7a, and the second air delivery pipe 7a passes through the middle tube 3 and the outer tube 1 in sequence and is connected to an external air pump; the opening and closing airbag 7 drives the inner annular surface to be provided with a second contraction part 7b, and the second contraction part 7 b is in contact with the outer wall of the inner tube 2, and gas is pumped into the opening and closing airbag 7 through the second air pipe 7a, so that the second contraction part 7b on the opening and closing airbag 7 expands inward to get close to the outer wall of the inner tube 2. Conversely, the gas in the opening and closing airbag 7 can be extracted through the second air pipe 7a, so that the second contraction part 7b on the opening and closing airbag 7 shrinks and moves away from the outer wall of the inner tube 2. In this way, the opening and closing between the second cavity 200 and the fourth cavity 400 can be controlled by the opening and closing airbag 7.

[0047] The present invention specifically works as follows:

[0048] When the clumping flocs on the gap 5c and the first cavity 100 accumulate to a certain amount, if they are not discharged, the gap 5c will be blocked, making it impossible for water to pass smoothly through the gap 5c to reach the second cavity 200, affecting the efficiency of sewage purification. At this time, the flocs on the gap 5c and the first cavity 100 need to be removed.

[0049] When it is necessary to remove the flocculants, first control the second contraction portion 7b of the opening and closing airbag 7 to expand toward the inner tube 2, so that the second contraction portion 7b is close to the outer wall of the inner tube 2, so that the fourth cavity 400 is formed between the ring 6 and the opening and closing airbag 7, and the dirt flowing down from the top is intercepted and collected through the fourth cavity 400 to prevent the dirt from flowing into the second cavity 200 and affecting the cleanliness of the second cavity 200. In this way, when the fourth cavity 400 is discharged, it will not affect the water flow output from the second cavity 200 to the third cavity 300. In this way, the discharge work and the reaction and sedimentation work are carried out simultaneously, which solves the problem in the prior art that when the sewage is discharged from the inside of the sedimentator, the reaction and sedimentation work cannot be carried out simultaneously.

[0050] Subsequently, the telescopic portion of the electric push rod 101 is controlled to drive the connecting ring 102 to move downward, so that the connecting ring 102 drives the interception ring 5 to move downward, and the interception ring 5 drives the inner ring portion of the circular ring 6 to move downward, so that the circular ring 6 is Figure 4 The ring shown transforms into Figure 7 When the maximum stretching value of the ring 6 is reached, the interception ring 5 is still moving downward. Since the interception ring 5 and the ring 6 are snap-fitted, as the interception ring 5 continues to move downward, the interception ring 5 and the ring 6 are separated. At this time, the position of the interception ring 5 and the ring 6 is as shown in FIG. Figure 7 As shown, a gap appears between the interception ring 5 and the circular ring 6, and the first cavity 100 is connected to the fourth cavity 400, so that the water flow and flocculants can quickly pass through the gap into the fourth cavity 400.

[0051] At the same time, due to the separation of the intercepting ring 5 and the circular ring 6, the air inlet 5a and the air outlet 6b are no longer connected, and at this time, the air inlet 5a is exposed, so that the internal gas of the intercepting ring 5 leaks out from the air inlet 5a, and the first contraction part 5b contracts rapidly, so that the gap 5c between the first contraction part 5b and the outer wall of the inner tube 2 becomes larger; so that the clumping flocs stuck between the first contraction part 5b and the outer wall of the inner tube 2 can smoothly fall down into the fourth cavity 400.

[0052] Since the flocculants have a certain degree of adhesion, some of the flocculants stuck in the gap 5c are bound to adhere to the outer wall of the inner tube 2. If they are not cleaned, more and more flocculants will inevitably adhere to the outer wall of the inner tube 2. Even if the intercepting ring 5 and the circular ring 6 are separated and then restored, blockage will quickly occur; at this time, due to the exposure of the air outlet 6b, the air outlet 6b is inclined toward the outer wall of the inner tube 2, and air is blown toward the outer wall of the inner tube 2 through the air outlet 6b. The airflow impacts the flocculants adhering to the outer wall of the inner tube 2, so that they can smoothly fall down into the fourth cavity 400, thereby achieving the cleaning effect of the flocculants adhering to the outer wall of the inner tube 2.

[0053] At the same time, due to the ring 6 is Figure 7 As shown in the tapered shape with a larger top and a smaller bottom, the water flow passing through the ring 6 will be more turbulent and have a greater impact force, so that the interception ring 5, the ring 6 and its connecting parts can be washed by the water flow in this part, and the flocculants adhering to the outer wall of the inner tube 2 can also be washed. In this way, through the multiple impacts of air flow and water flow, the flocculants adhering to the outer wall of the inner tube 2 can be better removed;

[0054] After the floccules on the outer wall of the inner tube 2, the interception ring 5, the circular ring 6 and the connecting parts thereof have all entered the fourth cavity 400, the telescopic portion of the electric push rod 101 is first controlled to drive the connecting ring 102 and the interception ring 5 to move upward, so that they can be engaged between the circular ring 6 again, so that the air inlet 5a and the air outlet 6b are restored to a connected state, and gas is continuously injected into the interception ring 5 through the air outlet 6b and the air inlet 5a, so that the first contraction portion 5b can expand toward the outer wall of the inner tube 2 and restore to the state of the first contraction portion 5b. Figure 6 As the interception ring 5 continues to move upward, and drives the ring 6 to move upward, the interception ring 5 and the ring 6 are Figure 7 The status shown is restored to Figure 4 In the status shown, the interception work continues;

[0055] Subsequently, the sewage extraction pipe 8 is controlled to extract the water flow and flocculants in the fourth cavity 400, so that all the clustered flocculants are removed, reducing the flocculant content in the third cavity 300, thereby improving the water purification effect.

[0056] Example 3

[0057] On the basis of Example 2, Figure 1-3 and Fig.11As shown, it also includes a dirt removal mechanism, which includes an annular guide rail 301, a moving block 302, a connecting rod 303, a baffle 304, a scraper 305 and a scraper block 306; the upper part of the middle cylinder 3 is bolted with the annular guide rail 301; the annular guide rail 301 is slidably connected with the moving block 302; the moving block 302 is bolted with the connecting rod 303; the connecting rod 303 is bolted with the baffle 304; the baffle 304 is bolted with the scraper 305, and the scraper 305 is in contact with the outer surface of the conical guide ring 4; the scraper 305 is bolted with the scraper block 306, and the scraper block 306 is in contact with the outer surface of the conical guide ring 4, the connecting rod 303 and its connecting parts are driven by the moving block 302 to move in an annular manner on the annular guide rail 301, and the flocculants adhered to the outer wall of the conical guide ring 4 and the inner wall of the middle cylinder 3 are scraped by the scraper 305 and the scraper block 306.

[0058] It also includes a receiving strip 307, the scraper block 306 is fixedly connected with the receiving strip 307, and the lower surface of the receiving strip 307 is flush with the lower surface of the conical guide ring 4, and the receiving strip 307 is in contact with the outer wall of the conical guide ring 4, and the receiving strip 307 is in contact with the inner wall of the middle tube 3; the flocs scraped off by the scraper 305 and the scraper block 306 are received by the receiving strip 307 to prevent the flocs from falling downwards.

[0059] The baffle 304 is configured as an arc-shaped structure, and the curvature of the baffle 304 is consistent with the circular curvature of the inner tube 2 . The baffle 304 blocks the water flow overflowing from the inner tube 2 , thereby avoiding impact on the flocculants on the receiving bar 307 .

[0060] The inner cylinder 2 is rotatably connected to the conical guide ring 4, and the conical guide ring 4 is provided with a driving motor; the driving motor drives the conical guide ring 4 to rotate clockwise from a top-down perspective, so that the water overflowing from the inner cylinder 2 can be evenly thrown away along the outer surface of the conical guide ring 4, avoiding the water from flowing down in strands.

[0061] The dirt removal work of the conical guide ring 4 of the present invention is as follows:

[0062] After a long period of diversion work, a large amount of floccules will inevitably adhere to the outer surface of the conical guide ring 4. More floccules appear in some areas of the upper surface of the conical guide ring 4, which prevents the water flow from flowing smoothly and can only flow along other areas, resulting in the water flow being unable to disperse and forming a strand-like water flow. In this way, the impact force of the water flow will increase again, impacting the floccules below and affecting the water purification effect. Therefore, it is necessary to remove the floccules adhered to the outer surface of the conical guide ring 4;

[0063] First, the connecting rod 303 and its connecting parts are driven by the moving block 302 to move counterclockwise from top to bottom on the annular guide rail 301, and the flocculants adhering to the outer wall of the conical guide ring 4 and the inner wall of the middle cylinder 3 are scraped by the scraper 305 and the scraper block 306, and accumulated on the receiving bar 307, and then discharged by the external cleaning equipment;

[0064] At the same time, the water flow overflowing from the inner cylinder 2 is blocked by the blocking bar 304 to prevent the water flow from impacting the floccules accumulated on the receiving bar 307, causing the floccules to flow downward, increasing the floccules content in the first cavity 100 and the second cavity 200, and affecting the water purification effect;

[0065] At the same time, the conical guide ring 4 is controlled to rotate clockwise from a top-down perspective, so that the water overflowing from the inner tube 2 can follow the outer surface of the conical guide ring 4 and be directly thrown onto the inner wall of the middle tube 3. Therefore, even if there are more floccules in some areas of the outer surface of the conical guide ring 4, the water flow can be thrown out in a dispersed state and will not form a strand of water flow, thereby avoiding the problem that the impact force of the water flow increases, causing impact on the floccules below and affecting the water purification effect.

[0066] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical flow multi-stage reaction precipitator, comprising an outer cylinder (1), an inner cylinder (2) and a middle cylinder (3); the inner cylinder (2) is fixedly connected to the inner part of the outer cylinder (1), and a water injection port is arranged at the lower part of the inner cylinder (2); the middle cylinder (3) is fixedly connected to the inner part of the outer cylinder (1), and the middle cylinder (3) is located outside the inner cylinder (2); a water extraction port (1a) is arranged at the upper part of the outer cylinder (1); the characteristics are: It also comprises a conical flow guide ring (4), an interception ring (5), a circular ring (6), a mounting plate (9) and a one-way valve (10); the conical flow guide ring (4) is arranged on the upper part of the inner cylinder (2), and the upper surface of the conical flow guide ring (4) is flush with the upper surface of the inner cylinder (2); the inner cylinder (2) is provided with an interception ring (5); the interception ring (5) is provided with a first contraction portion (5b), and a plurality of gaps (5c) are formed between the first contraction portion (5b) and the inner cylinder (2); the inner wall of the middle cylinder (3) and the outer side of the interception ring (5) are connected to a circular ring (6); the bottom of the middle cylinder (3) is fixedly connected to a mounting plate (9); the mounting plate (9) is provided with a plurality of one-way valves (10); a first cavity (100) is formed between the conical flow guide ring (4) and the circular ring (6); a second cavity (200) is formed between the circular ring (6) and the mounting plate (9); It also includes a conical cover (201); the conical cover (201) is fixedly connected to the lower portion of the outer surface of the middle cylinder (3), and the lower portion of the conical cover (201) is close to the inner wall of the outer cylinder (1); a third cavity (300) is formed between the conical cover (201) and the inner bottom of the outer cylinder (1); It also includes an electric push rod (101) and a connecting ring (102); the first contraction portion (5b) of the interception ring (5) is slidably connected to the outer wall of the inner tube (2); the interception ring (5) and the circular ring (6) are movably connected; a plurality of electric push rods (101) are installed on the inner wall of the middle tube (3); the telescopic portions of all the electric push rods (101) are fixedly connected to a connecting ring (102), and the connecting ring (102) is fixedly connected to the lower surface of the interception ring (5); The interception ring (5) and the circular ring (6) are connected in a snap-fitting manner; the circular ring (6) is made of a deformable material, and the deformation state is fixed; The first contraction portion (5b) on the interception ring (5) is made of an airbag material and can shrink or expand to enlarge or reduce the gap (5c); the circular ring (6) is provided with a plurality of air outlet holes (6b) distributed in a circular array; the circular ring (6) is provided with a first air delivery pipe (6c), and the first air delivery pipe (6c) passes through the middle tube (3) and the outer tube (1) in sequence and is externally connected to a pump; the interception ring (5) is provided with a plurality of air inlet holes (5a) distributed in a circular array, and when the interception ring (5) and the circular ring (6) are engaged, the air inlet hole (5a) is connected to the air outlet hole (6b); It also includes an opening and closing airbag (7) and a sewage extraction pipe (8); the opening and closing airbag (7) is fixedly connected to the inner wall of the middle tube (3), and the opening and closing airbag (7) is annular, and the inner annular surface of the opening and closing airbag (7) is in contact connection with the outer wall of the inner tube (2); a fourth cavity (400) is formed between the circular ring (6) and the opening and closing airbag (7); the opening and closing airbag (7) is provided with a second air delivery pipe (7a), and the second air delivery pipe (7a) passes through the middle tube (3) and the outer tube (1) in sequence and is externally connected to an air pump; the opening and closing airbag (7) drives the inner annular surface to be provided with a second contraction portion (7b), and the second contraction portion (7b) is in contact connection with the outer wall of the inner tube (2); The fourth cavity (400) is divided by the conical cover (201) so that the fourth cavity (400) is divided into two upper and lower sedimentation areas, and the water flow output from the one-way valve (10) will only flow in the lower sedimentation area and will not affect the sedimentation in the upper sedimentation area.

2. A vertical flow multi-stage reaction precipitator according to claim 1, characterized in that: The utility model also comprises a dirt removal mechanism, which comprises an annular guide rail (301), a moving block (302), a connecting rod (303), a blocking bar (304), a scraper (305) and a scraper block (306); the upper part of the middle cylinder (3) is fixedly connected with the annular guide rail (301); the annular guide rail (301) is slidably connected with the moving block (302); the moving block (302) is fixedly connected with the connecting rod (303); the connecting rod (303) is fixedly connected with the blocking bar (304); the blocking bar (304) is fixedly connected with the scraper (305), and the scraper (305) is in contact with the outer surface of the conical guide ring (4); the scraper (305) is fixedly connected with the scraper block (306), and the scraper block (306) is in contact with the outer surface of the conical guide ring (4).

3. A vertical flow multi-stage reaction precipitator according to claim 2, characterized in that: It also includes a receiving strip (307), the scraper block (306) is fixedly connected to the receiving strip (307), the lower surface of the receiving strip (307) is flush with the lower surface of the conical guide ring (4), the receiving strip (307) is in contact with the outer wall of the conical guide ring (4), and the receiving strip (307) is in contact with the inner wall of the middle tube (3).

4. A vertical flow multi-stage reaction precipitator according to claim 3, characterized in that: The baffle (304) is configured as an arc-shaped structure, and the curvature of the baffle (304) is consistent with the circular curvature of the inner cylinder (2).

5. A vertical flow multi-stage reaction precipitator according to claim 4, characterized in that: The inner cylinder (2) is rotatably connected to the conical guide ring (4), and the conical guide ring (4) is provided with a driving motor.

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