CN107032462B - Treatment device for purifying beneficiation wastewater by using efficient neutral flocculant - Google Patents
Treatment device for purifying beneficiation wastewater by using efficient neutral flocculant Download PDFInfo
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- CN107032462B CN107032462B CN201611011850.7A CN201611011850A CN107032462B CN 107032462 B CN107032462 B CN 107032462B CN 201611011850 A CN201611011850 A CN 201611011850A CN 107032462 B CN107032462 B CN 107032462B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The invention discloses a treatment device for purifying beneficiation wastewater by using a high-efficiency neutral flocculant, which comprises a stirring tank and a sedimentation tank which are communicated with each other; the stirring pool is divided into a primary stirring pool and a secondary stirring pool; the sedimentation tank is divided into a primary sedimentation tank and a secondary sedimentation tank; the primary stirring tank, the primary sedimentation tank, the secondary stirring tank and the secondary sedimentation tank are communicated in sequence; the sewage inlet pipe is communicated with the primary stirring pool through a water inlet pool, and the drug feeder is arranged above the water inlet pool; the water purifying outlet is arranged in the secondary sedimentation tank, and the sewage discharging device provided with the blockage removing device is arranged at the bottom of the secondary sedimentation tank; the secondary stirring tank and the secondary sedimentation tank are separated by a round platform cylinder, a cylinder and a cone cylinder; the space enclosed by the inner wall of the circular truncated cone and the inner wall of the lower part of the conical cylinder is a secondary stirring tank, and the space enclosed by the inner wall of the cylinder, the outer wall of the circular truncated cone and the inner wall of the upper part of the conical cylinder is a secondary sedimentation tank. The structure is more compact, the processing quality and efficiency are higher, and the reliability is higher.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, relates to a sewage treatment device for mineral separation industry, and in particular relates to a treatment device for purifying mineral separation sewage by using a high-efficiency neutral flocculant.
Background
There are various sewage treatment processes for mineral separation production, wherein the use of a high-efficiency neutral flocculant for purifying mineral separation sewage is one of the process methods for purifying mineral separation sewage which have been developed in recent years, and the process method adds the flocculant into sewage according to a set value in the sewage treatment process, and the high-efficiency neutral flocculant is a wastewater purification treatment agent which is better popularized and used in recent years. The method has the advantages of cleanness, environmental protection, no secondary pollution, high speed and high efficiency, and can finish the purification process in a small space.
In order to fully utilize the purification effect of the high-efficiency neutral flocculant, the requirement of the flocculant on the growth of the flocculate after the flocculant contacts with impurities in water needs to be met as much as possible, and therefore water treatment equipment capable of providing the requirement of the environment for the growth of the flocculate is needed. The efficient neutral flocculant is a tiny particle with positive charges, which is added into mineral separation sewage with negative charges, and is rapidly stirred to neutralize the charges, so that agglutination is generated, smaller floccules are formed, the small floccules are slowly stirred again after standing, the small floccules are mutually combined, the floccules continuously grow, and the pollution source particles in the water are adsorbed on the floccules to be separated from the water body. The growth of the flocs needs to be fully stirred to continuously combine small flocs and make them larger so that the added flocculant can be fully utilized, and the larger the flocs are, the easier the flocs are to settle and the easier the flocs with dirt adsorbed are to be separated from the water body; but at the same time, the larger the flocculate is, the more unstable the physical structure connection of the flocculate is, and the larger the stirring strength is, the more easily broken and dispersed, so that the softer the stirring is required. Thus, the action of an ideal highly efficient neutral flocculant requires four processes: strong stirring after adding the medicament, standing for proper time, slow and gentle secondary stirring, and secondary standing for separating flocculate from water. The process requirements can be well met in a sewage treatment plant, but the occupied area is large, and in order to realize the process on the premise of small occupied area, a plurality of single sewage treatment devices based on a compact combined structure of two stirring tanks and two standing tanks are developed to realize the process.
For example: the patent with the publication number of CN201124045 discloses a sewage treatment machine, which comprises a sewage treatment host machine, wherein the host machine comprises a stirring chamber and a sedimentation chamber which are mutually communicated, a sewage water inlet is arranged on the stirring chamber, and a water outlet for discharging clean water after treatment is arranged on the sedimentation chamber. The stirring chamber is divided into a first stirring chamber and a second stirring chamber, the first stirring chamber and the second stirring chamber are communicated with each other, a stirrer is arranged in each stirring chamber, and a medicine feeding machine is arranged on the first stirring chamber; the sedimentation chamber is divided into a first sedimentation chamber and a second sedimentation chamber, the first sedimentation chamber and the second sedimentation chamber are mutually communicated, a slow flow plate is arranged at each communicated position, a sludge groove is arranged at the bottoms of the first sedimentation chamber and the second sedimentation chamber, and the sludge groove is communicated with a sewage sludge outlet. Has the advantages of simple and compact structure, strong mobility, small occupied area, small investment, high automation degree, simple operation and stronger sewage treatment capability.
The treatment device of beneficiation sewage adopting the technology can be used, has compact equipment structural design, completes the flow combination of four procedures, realizes the purpose of completing sewage purification in a small space, but has the following defects:
A. the process is sequentially carried out according to the primary stirring tank, the secondary stirring tank, the primary sedimentation tank and the secondary sedimentation tank, although the process can also be used, the process is not fully in accordance with the requirements of an ideal flocculation process, the process is not reasonable enough, the growth environment of flocculates is not good enough, the individual after flocculation growth is relatively small, the small flocculates are easy to suspend in water, the separation of water and the flocculates is insufficient, and the treatment quality is not high enough.
B. Because the flocculate is settled at the bottom of the standing box, the bottom of the device is funnel-shaped, and the flocculate is only intermittently discharged through the pipe, which easily causes partial discharge and partial retention of the flocculate in the pipe, and finally blocks the pipeline until the flocculate cannot be discharged. The reliability of the device is not yet high enough.
C. Because its four main part devices of once stirring pond, secondary stirring pond, primary sedimentation tank, secondary sedimentation tank are simple box, structural design is compact optimization still not enough, and processing quality and efficiency are not high enough yet.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the treatment device for purifying the beneficiation wastewater by using the high-efficiency neutral flocculant, which has the advantages of more compact and reasonable structure, more optimization in design, higher treatment quality and efficiency and higher reliability.
The technical scheme adopted by the invention for achieving the technical purpose is as follows: a treatment device for purifying beneficiation sewage by using a high-efficiency neutral flocculant comprises a sewage treatment host machine, wherein a stirring tank and a sedimentation tank which are mutually communicated are arranged on the host machine; a drug feeder is arranged above the stirring pool; a stirring device is arranged in the stirring pool; the stirring pool is connected with a sewage inlet pipe; the sedimentation tank is connected with a purified water outlet; a sewage disposal device is arranged at the bottom of the sedimentation tank; the stirring pool is divided into a primary stirring pool and a secondary stirring pool; the sedimentation tank is divided into a primary sedimentation tank and a secondary sedimentation tank; the primary stirring tank, the primary sedimentation tank, the secondary stirring tank and the secondary sedimentation tank are communicated in sequence; the sewage inlet pipe is communicated with the primary stirring pool through a water inlet pool arranged above the primary stirring pool, and the medicine feeder is arranged above the water inlet pool; the clean water outlet is arranged in the secondary sedimentation tank, the sewage disposal device is arranged at the bottom of the secondary sedimentation tank, and the sewage disposal device is also provided with a blockage cleaning device; the whole of the secondary stirring tank and the secondary sedimentation tank comprises a round platform cylinder, a cylinder and a cone cylinder; the round platform cylinder with the small upper part and the big lower part is arranged in the cylinder; the funnel-shaped cone is connected with the bottom of the cylinder; a gap is reserved between the periphery of the bottom of the circular truncated cone and the surface of the cone in a way of approaching; the space surrounded by the inner wall of the cylinder, the outer wall of the circular truncated cone and the inner wall of the upper part of the cone is a secondary sedimentation tank; the space enclosed by the inner wall of the circular truncated cone and the inner wall of the lower part of the cone is a secondary stirring pool.
The upper opening of the primary stirring tank is connected with a water distribution tank through an overflow opening, the bottom surface of the water distribution tank is provided with a water distribution hole communicated with the top surface of the primary sedimentation tank, and a valve capable of adjusting flow is arranged on a water distribution hole channel; a partition plate with a gap is inserted into the primary sedimentation tank with the gradient on the bottom surface to divide the primary sedimentation tank into two spaces, the space filtered by the partition plate is a sedimentation area of the primary sedimentation tank, a sedimentation area water outlet is formed in the bottommost part of the sedimentation area, and the sedimentation area water outlet is communicated with the upper opening part of the secondary stirring tank through a pipeline with a water pump.
The stirring device comprises a submersible stirrer arranged in the primary stirring tank and a stirrer arranged in the secondary stirring tank; the mixer that sets up in the secondary stirring pond be equipped with the motor above the round platform section of thick bamboo, the motor is connected with the bottom plate that stretches down to funnel-shaped cone section of thick bamboo bottom through the transmission shaft through the speed reducer, establishes the revolving plate on the bottom plate, is equipped with out the batting hole on the revolving plate, be equipped with on the batting hole with its looks adaptation wash the hole wheel.
The funnel hole at the bottom of the funnel-shaped cone is connected with an electromagnetic valve; the bottom of the cone is provided with a sensor capable of identifying the turbidity of the water body, the output end of the sensor is in signal connection with the input end of the controller, and the output end of the controller is in signal connection with the input end of the electromagnetic valve.
The water outlet of the sewage inlet pipe is arranged at one side surface of the water inlet tank.
The water inlet pool is communicated with the primary stirring pool, and the bottom of the water inlet pool is communicated with one side surface of the lower part of the primary stirring pool through a water feeding pipe.
The upper end surface of the cylinder is provided with a circular overflow groove near the periphery, and one part of the peripheral surface of the outer ring of the overflow groove is provided with a purified water outlet; a triangular toothed plate is arranged between the upper end of the cylinder and the overflow groove.
The top surface of the circular truncated cone and the speed reducer are provided with a circle of guide vanes which are distributed according to the circular truncated cone-shaped cover surface and can generate vortex, and the bottom surface of the circular truncated cone-shaped cover body covers the top surface of the circular truncated cone.
The rotary plate is a circular plate body, and the flocculation outlet is an arc-shaped hole formed in the circular plate body; the hole washing wheel is a rotating wheel which is pressed on the circumference line where the distribution arc line of the arc-shaped holes is located and fixed on the bottom of the funnel by a hinge, the cross section of the rotating wheel along the axial direction is olive-shaped, the diameter of the circular cross section of the two small ends of the olive shape is smaller than the width of the hole for discharging the cotton fibers, the diameter of the circular cross section of the waist of the olive shape is larger than the width of the hole for discharging the cotton fibers, and when the hole for discharging the cotton fibers rotates to the position of the hole washing wheel under the driving of the rotating plate, the wheel body of the hole washing wheel sinks and stretches into the hole for discharging the cotton fibers.
The space enclosed by the bottom surface of the round platform cylinder and the inner wall of the lower part of the conical cylinder is a flocculation collecting area; a plurality of inclined fan blade type guide plates are annularly distributed on the inner wall of the upper part of the cone cylinder according to a circular table; the lower ends of the guide plates penetrate through gaps reserved between the bottom edge of the circular truncated cone and the conical barrel surface to stretch into the flocculation collecting area, the stretching-in lengths of the lower ends of the guide plates stretching into the flocculation collecting area are arranged in a manner of being in long-abutting-against-short distribution, and deflection angles of the guide plates with long lengths are larger than those of the guide plates with short lengths.
The beneficial effects of the invention are as follows: because the primary stirring tank, the primary sedimentation tank, the secondary stirring tank and the secondary sedimentation tank are communicated in sequence; the sewage inlet pipe is communicated with the primary stirring pool through a water inlet pool arranged above the primary stirring pool, and the medicine feeder is arranged above the water inlet pool; the clean water outlet is arranged in the secondary sedimentation tank, the sewage disposal device is arranged at the bottom of the secondary sedimentation tank, and the sewage disposal device is also provided with a blockage cleaning device; the whole of the secondary stirring tank and the secondary sedimentation tank comprises a round platform cylinder, a cylinder and a cone cylinder; the round platform cylinder with the small upper part and the big lower part is arranged in the cylinder; the funnel-shaped cone is connected with the bottom of the cylinder; a gap is reserved between the periphery of the bottom of the circular truncated cone and the surface of the cone in a way of approaching; the space surrounded by the inner wall of the cylinder, the outer wall of the circular truncated cone and the inner wall of the upper part of the cone is a secondary sedimentation tank; the space enclosed by the inner wall of the circular truncated cone and the inner wall of the lower part of the cone is a secondary stirring pool.
A. The design that the round platform barrel is buckled into the cylinder is skillfully utilized, the space gradual expansion characteristic of the round platform barrel is utilized, two sections of gradual expansion spaces are formed, the stirring environment requirement gradually becoming gentle when flocs grow and the sedimentation environment requirement gradually slowing the water flow speed are met, the whole machine structure is compact and reasonable, and the treatment quality is high.
B. The space with different pressure differences is formed by skillfully utilizing the combination of the guide plates, so that the cyclic screening of flocculates is realized in two areas, the flocculation is more sufficient, and the treatment quality is higher.
C. Because the flocculation outlet is provided with the hole washing wheel which is matched with the flocculation outlet, the flocculation outlet is not easy to be blocked, the failure rate is greatly reduced, and the equipment reliability is higher.
D. Because the primary stirring tank, the primary sedimentation tank, the secondary stirring tank and the secondary sedimentation tank are communicated in sequence, the method completely meets the ideal flocculation process requirement, and has more reasonable flow and higher treatment quality and efficiency.
In conclusion, the invention has the advantages of compact and reasonable structure, higher treatment quality and efficiency, higher reliability and more ideal use effect.
Drawings
The invention is further described below with reference to the drawings and examples. Wherein:
FIG. 1 is a schematic view of the primary view of the present invention;
FIG. 2 is a left-hand schematic view of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic view in the A-A direction of FIG. 1;
FIG. 5 is a schematic view of the C-C view of FIG. 3;
fig. 6 is a schematic view of the view B-B of fig. 5.
The reference numbers in the drawings are illustrated as follows: the sewage inlet pipe 1, the water inlet tank 2, the water feeding pipe 3, the medicine feeder 4, the primary stirring tank 5, the submersible stirrer 6, the overflow port 7, the water distribution tank 8, the water distribution hole 9, the primary sedimentation tank 10, the partition plate 11, the sedimentation area 12, the sedimentation area water outlet 13, the water pump 14, the stirring cavity 15, the guide vane 16, the round platform barrel 17, the conical barrel 18, the cylinder 19, the guide plate 20, the flocculation collecting area 21, the bottom plate 22, the rotating plate 23, the flocculation outlet 24, the hole washing wheel 25, the electromagnetic valve 26, the transmission shaft 27, the motor 28, the speed reducer 29, the overflow tank 30 and the purified water outlet 31
Detailed Description
The embodiment of the invention is shown in fig. 1 to 6, and the treatment device for purifying beneficiation wastewater by using the high-efficiency neutral flocculant comprises a wastewater treatment host machine, wherein a stirring tank and a sedimentation tank which are mutually communicated are arranged on the host machine; a drug feeder 4 is arranged above the stirring pool; a stirring device is arranged in the stirring pool; the stirring pool is connected with a sewage inlet pipe 1; the sedimentation tank is connected with a purified water outlet 31; a sewage disposal device is arranged at the bottom of the sedimentation tank; the stirring tank is divided into a primary stirring tank 5 and a secondary stirring tank; the sedimentation tank is divided into a primary sedimentation tank 10 and a secondary sedimentation tank; the primary stirring tank 5, the primary sedimentation tank 10, the secondary stirring tank and the secondary sedimentation tank are communicated in sequence; the sewage inlet pipe 1 is communicated with the primary stirring pool 5 through a water inlet pool 2 arranged above the primary stirring pool 5, and the drug feeder 4 is arranged above the water inlet pool 2; the water purifying water outlet 31 is arranged in the secondary sedimentation tank, the sewage disposal device is arranged at the bottom of the secondary sedimentation tank, and the sewage disposal device is also provided with a blockage cleaning device; the whole of the secondary stirring tank and the secondary sedimentation tank comprises a round platform barrel 17, a cylinder 19 and a cone barrel 18; the round platform barrel 17 with a small upper part and a large lower part is arranged in the cylinder 19; the funnel-shaped cone 18 is connected with the bottom of the cylinder 19; a gap is arranged between the bottom peripheral edge of the round platform barrel 17 and the surface of the conical barrel 18 in a way of approaching; the space surrounded by the inner wall of the cylinder 19, the outer wall of the round platform cylinder 17 and the inner wall of the upper part of the cone cylinder 18 is a secondary sedimentation tank; the space enclosed by the inner wall of the round platform cylinder 17 and the inner wall of the lower part of the cone cylinder 18 is a secondary stirring pool.
The upper opening of the primary stirring tank 5 is connected with a water distribution tank 8 through an overflow opening 7, the bottom surface of the water distribution tank 8 is provided with a water distribution hole 9 communicated with the top surface of a primary sedimentation tank 10, and a valve capable of adjusting flow is arranged on a channel of the water distribution hole 9; the primary sedimentation tank 10 with the gradient on the bottom surface is inserted with a baffle plate 11 with a gap to divide the primary sedimentation tank 10 into two spaces, the space after the baffle plate 11 is filtered is a sedimentation zone 12 of the primary sedimentation tank 10, the bottommost part of the sedimentation zone 12 is provided with a sedimentation zone water outlet 13, and the sedimentation zone water outlet 13 is communicated with the upper opening part of the secondary stirring tank through a pipeline provided with a water pump 14.
The stirring device comprises a submersible stirrer 6 arranged in the primary stirring tank 5 and a stirrer arranged in the secondary stirring tank; the mixer that sets up in secondary stirring pond be equipped with motor 28 above round platform section of thick bamboo 17, motor 28 is connected with the bottom plate 22 that stretches down to funnel-shaped cone section of thick bamboo 18 bottom through transmission shaft 27 through speed reducer 29, establishes the rotating plate 23 on the bottom plate 22, is equipped with out the batting hole 24 on the rotating plate 23, is equipped with on the batting hole 24 and washes hole wheel 25 rather than looks adaptation.
The funnel hole at the bottom of the funnel-shaped cone 18 is connected with an electromagnetic valve 26; the bottom of the cone 18 is provided with a sensor capable of identifying the turbidity of the water body, the output end of the sensor is in signal connection with the input end of the controller, and the output end of the controller is in signal connection with the input end of the electromagnetic valve 26.
The water outlet of the sewage inlet pipe 1 is arranged at a side surface of the water inlet tank 2.
The water inlet tank 2 is communicated with the primary stirring tank 5, and the bottom of the water inlet tank 2 is communicated with one side surface of the lower part of the primary stirring tank 5 through the water feeding pipe 3.
The upper end surface of the cylinder 19 is provided with a circular overflow groove 30 near the periphery, and a clean water outlet 31 is arranged at one position on the peripheral surface of the outer ring of the overflow groove 30; a triangular toothed plate is arranged between the upper end of the cylinder 19 and the overflow trough 30.
A circle of guide vanes 16 which are distributed according to a circular truncated cone-shaped cover-shaped surface and can generate vortex are arranged between the top surface of the circular truncated cone-shaped cylinder 17 and the speed reducer 29, and the bottom surface of the circular truncated cone-shaped cover-shaped body covers the top surface of the circular truncated cone-shaped cylinder 17.
The rotary plate 23 is a circular plate body, and the flocculation outlet 24 is an arc-shaped hole formed in the circular plate body; the hole washing wheel 25 is a rotating wheel which is pressed on the circumference line where the distribution arc line of the arc-shaped holes is located and fixed on the bottom of the funnel by a hinge, the rotating wheel is olive-shaped in axial section, the diameter of the circular section of the two small ends of the olive is smaller than the width of the hole for discharging the cotton fibers 24, the diameter of the circular section of the middle waist of the olive is larger than the width of the hole for discharging the cotton fibers 24, and when the hole for discharging the cotton fibers 24 rotates to the position of the hole washing wheel 25 under the driving of the rotating plate 23, the wheel body of the hole washing wheel 25 sinks and stretches into the hole for discharging the cotton fibers 24.
The space surrounded by the bottom surface of the round platform cylinder 17 and the inner wall of the lower part of the cone cylinder 18 is a flocculation collecting area 21; a plurality of inclined fan blade type guide plates 20 are annularly distributed on the inner wall of the upper part of the cone 18 according to a circular table; the lower end of each deflector 20 passes through the gap between the bottom periphery of the round platform barrel 17 and the surface of the cone barrel 18 and stretches into the flocculation collection area 21, the stretching-in length of the lower end of each deflector 20 stretching into the flocculation collection area 21 is arranged in a way of long abutting against short distribution, and the deflection angle of the deflector 20 with long length is larger than that of the deflector 20 with short length.
The working principle of the invention is as follows: according to the process requirement, the device organically combines four working procedures into three structures: 1. primary stirring part, 2, primary standing part, 3 secondary stirring and secondary standing part.
Primary stirring part: the primary stirring part consists of a sewage inlet pipe 1, a water inlet tank 2 suspended above a sedimentation zone 12, a water feeding pipe 3 connected with the bottom of the water inlet tank 2 to a primary stirring tank 5, a submersible stirrer 6 arranged in the primary stirring tank 5, an overflow port 7 of the primary stirring tank 5 and a drug delivery machine 4 arranged above the water inlet tank 2.
The sewage inlet pipe 1 is filled with water from the side of the water inlet tank 2 so as to form vortex in the water inlet tank 2 to quickly bring the high-efficiency neutral flocculant fed by the drug feeder 4 into the primary stirring tank 5 for stirring, and the high-efficiency neutral flocculant cannot adhere to the tank wall to cause the waste of the drug.
Primary standing part: the primary standing part consists of a water distribution tank 8, two water distribution holes 9, a primary sedimentation tank 10, a baffle plate 11 arranged in the primary sedimentation tank 10, a sedimentation zone 12 positioned below the water inlet tank 2 and a pyramid-shaped funnel-shaped sedimentation zone water outlet 13.
The baffle 11 is formed by erecting an iron plate with a gap at the lower part in a primary sedimentation tank 10, wherein the upper part of the baffle exceeds the water surface. No dead angle is generated for the whole pool to participate in the flowing. The water distribution holes 9 may be provided with valves to regulate the flow of water into both holes.
Secondary stirring and secondary standing part: the main body of the part is composed of a cylinder 19, a round platform cylinder 17 and a cone cylinder 18. Dividing the partial space into: a secondary stirring tank, a secondary sedimentation tank and a flocculation area 21.
The baffle 20 is a group of long sheet-shaped blade bodies which are arranged between the round platform barrel 17 and the conical barrel 18 along a circle around the inner wall of the upper part of the conical barrel 18 according to two inclined angles and two downward extending lengths, wherein the two downward extending lengths refer to: the arrangement of the lengths of the penetration of each blade into the flocculation area 21 is as follows: the first block is long, the second block is short, the third block is long, the fourth block is short. Two inclination angles refer to: the deflection angle of the long-length blade body is larger than that of the short-length blade body. Such an arrangement creates different pressures between the gaps of the different blades formed by the baffles 20, so that one of the grid flows upward, carrying away the clear water, and the next grid flows downward, bringing the flocs in the secondary sedimentation tank into the flocculation collection area 21.
The mineral dressing sewage enters the water inlet tank 2 from the side of the water inlet tank 2 through the sewage water inlet pipe 1 and is fed into the primary stirring tank 5 through the water feeding pipe 3 in the middle, and as the sewage enters from the side and is discharged from the middle of the bottom of the water inlet tank 2, vortex flow is easy to form, the vortex flow can quickly enter the primary stirring tank 5 with the high-efficiency neutral flocculant fed from the drug feeder 4, the submersible stirrer 6 quickly and fully mixes the flocculant with the sewage to form small-particle flocculates, and the fully stirred water flows out from the overflow port 7 arranged on the upper edge of the primary stirring tank 5.
The overflowed water is delivered to the positions of the two water distribution holes 9 through the water distribution grooves 8, and valves can be arranged on the water distribution holes 9 to adjust the distribution flow of the water in the two water distribution holes 9. The mixed water with small particles of flocculate is precipitated in the primary sedimentation tank 10 by the baffle 11 and is slowly moved to the sedimentation zone 12, and during the movement, the mixed water is combined into larger flocculates. The water bodies are converged to the water outlet 13 of the sedimentation zone, are pumped to the stirring cavity 15 along the tangential direction by the water pump 14, are cut into the round platform barrel 17 in the clockwise direction under the action of the guide vane 16 after being stirred with larger intensity in the stirring cavity 15, enter a slow stirring stage, and the diameter of the round platform barrel 17 is larger as the diameter of the round platform barrel 17 is larger downwards, and the kinetic energy consumption of water is added, so that the stirring intensity is gradually gentle. The growth of flocs requires agitation to incorporate small flocs, the larger the flocs the more easily settling; at the same time, the larger the flocculate is, the more unstable the structure is, and the more easily damaged, so that the softer the stirring is required. The water flow provided by the device moves from top to bottom; the intensity of the stirring is gradually gentle, which provides a good environment for the growth of the flocs.
The water flow rotates clockwise to reach the cone 18, the long and large flocculate settles in the flocculation collecting area 21 at the bottom of the funnel, when the sensor detects that the flocculate in the flocculation collecting area 21 reaches a certain amount, the controller controls the electromagnetic valve 26 to be opened, the flocculate is pressed out from the flocculation outlet 24 on the rotating plate 23 under the action of pressure difference, and meanwhile, the rotating plate 23 rotates slowly under the drive of the rotating device consisting of the motor 28, the speed reducer 29 and the transmission shaft 27 to remove the flocculate at all positions in the funnel, and the flocculate is easy to scale around the flocculation outlet 24 due to long-time operation, and finally the flocculation outlet 24 is blocked. Therefore, a hole washing wheel 25 is arranged on the circle concentric with the hole outlet 24, when the hole outlet 24 is driven by a transmission device to rotate to the position of the hole washing wheel 25, the hole washing wheel 25 is sunk into the hole outlet 24, and scales on the edge of the hole outlet 24 are washed out by friction and extrusion so as to keep unblocked.
The water body from which most of the flocculate is separated still keeps the clockwise flow direction, and under the action of the guide plate 20, larger pressure is generated when the grid with long length and large inclination degree is detected out, and water flow rises to bring the clarified water into the second standing area; less pressure is generated in the grid where the deflector 20 does not protrude and the inclination of the deflector 20 is small, and the water flows down, bringing the flocs growing in the second rest area into the flocculation collection area 21.
After the flocculate is discharged from the electromagnetic valve 26, the electromagnetic valve 26 is closed, the next working flow is carried out, and the flocculate discharged from the electromagnetic valve 26 can be contained in an externally connected filter bag to realize the recovery of the flocculate.
The water coming out through the flocculation area 21 enters a secondary sedimentation tank. This portion of water still has smaller and unoccupied flocs that grow and settle, and as with the secondary stirred tank, the space arrangement of the secondary settling tank also provides a slower flow rate for the water flow, facilitating the growth and settling separation of the flocs. The settled flocs are carried back to the flocculation area 21 by the submerged water flow at the deflector 20.
The clean water slowly rises to the top end of the cylinder 19, enters the overflow groove 30 through the triangular toothed plate, and is conveyed out from the clean water outlet 31, so that the efficient neutral flocculation purification process of the beneficiation wastewater is completed.
The rotary plate 23 is adopted to drive the flocculation outlet 24 to discharge the flocculation, thereby ensuring the smooth discharge of the flocculate. And a unique hole washing wheel 25 is adopted to ensure the smoothness of the flocculation hole 24.
The use of the spacer 11 with voids serves to distribute the flocculate in the water as evenly as possible throughout and to increase the effective settling time.
The triangular toothed plate is arranged between the upper end of the cylinder 19 and the overflow groove 30 to solve the problem that the edge of the cylinder is difficult to adjust to horizontal overflow, so that water can flow out from the whole circumference, rising water is distributed in the whole cylinder, and the sedimentation effect is improved.
The technology of the invention is not only limited to the treatment of beneficiation sewage, but obviously can also be applied to the treatment of various sewage purified by the high-efficiency neutral flocculant.
Claims (3)
1. The treatment device for purifying beneficiation sewage by using the efficient neutral flocculant is characterized by comprising a sewage treatment host machine, wherein a stirring tank and a sedimentation tank which are mutually communicated are arranged on the host machine; a drug feeder is arranged above the stirring pool; a stirring device is arranged in the stirring pool; the stirring pool is connected with a sewage inlet pipe; the sedimentation tank is connected with a purified water outlet; a sewage disposal device is arranged at the bottom of the sedimentation tank; the stirring pool is divided into a primary stirring pool and a secondary stirring pool; the sedimentation tank is divided into a primary sedimentation tank and a secondary sedimentation tank; the primary stirring tank, the primary sedimentation tank, the secondary stirring tank and the secondary sedimentation tank are communicated in sequence; the sewage inlet pipe is communicated with the primary stirring tank through a water inlet tank arranged above the primary stirring tank, and the water inlet tank is communicated with one side surface of the lower part of the primary stirring tank through a water feeding pipe;
the drug delivery machine is arranged above the water inlet tank; the clean water outlet is arranged in the secondary sedimentation tank, the sewage disposal device is arranged at the bottom of the secondary sedimentation tank, and the sewage disposal device is also provided with a blockage cleaning device; the whole of the secondary stirring tank and the secondary sedimentation tank comprises a round platform cylinder, a cylinder and a cone cylinder; the round platform cylinder with the small upper part and the big lower part is arranged in the cylinder; the funnel-shaped cone is connected with the bottom of the cylinder; a gap is reserved between the periphery of the bottom of the circular truncated cone and the surface of the cone in a way of approaching; the space surrounded by the inner wall of the cylinder, the outer wall of the circular truncated cone and the inner wall of the lower part of the cone is a secondary sedimentation tank; the space enclosed by the inner wall of the circular truncated cone and the inner wall of the upper part of the cone is a secondary stirring pool; the space enclosed by the bottom surface of the circular truncated cone and the inner wall of the lower part of the cone is a flocculation collecting area;
the upper opening of the primary stirring tank is connected with a water distribution tank through an overflow opening, the bottom surface of the water distribution tank is provided with a water distribution hole communicated with the top surface of the primary sedimentation tank, and a valve capable of adjusting flow is arranged on a water distribution hole channel; a baffle with a gap is inserted into the primary sedimentation tank with the gradient on the bottom surface to divide the primary sedimentation tank into two spaces, the space filtered by the baffle is a sedimentation zone of the primary sedimentation tank, a sedimentation zone water outlet is arranged at the bottommost part of the sedimentation zone, and the sedimentation zone water outlet is communicated with the upper opening part of the secondary stirring tank through a pipeline with a water pump;
the stirring device comprises a submersible stirrer arranged in the primary stirring tank and a stirrer arranged in the secondary stirring tank; the stirrer arranged in the secondary stirring pool is characterized in that a motor is arranged above the round platform cylinder, the motor is connected with a bottom plate which extends downwards to the bottom of the funnel-shaped conical cylinder through a transmission shaft by a speed reducer, a rotating plate is arranged on the bottom plate, a flocculation outlet hole is formed in the rotating plate, and a hole washing wheel matched with the flocculation outlet hole is arranged on the flocculation outlet hole;
a circular overflow groove is arranged on the upper end surface of the cylinder near the periphery, and a clean water outlet is arranged at one position on the peripheral surface of the outer ring of the overflow groove; a triangular toothed plate is arranged between the upper end of the cylinder and the overflow groove; a circle of guide vanes which are distributed according to the shape of the circular truncated cone cover and can generate vortex are arranged between the top surface of the circular truncated cone and the speed reducer; the guide vanes which are distributed according to the round table shape cover surface and can generate vortex form a round table shape cover body, and the bottom surface of the guide vanes covers the top surface of the round table cylinder;
a plurality of inclined fan blade type guide plates are annularly distributed on the inner wall of the upper part of the cone cylinder according to a circular table; the lower ends of the guide plates penetrate through gaps reserved between the bottom edge of the circular truncated cone and the conical barrel surface to extend into the flocculation collecting area, the extending lengths of the lower ends of the guide plates extending into the flocculation collecting area are arranged in a manner of being in long-abutting-short distribution, and the deflection angles of the guide plates with long lengths are larger than those of the guide plates with short lengths;
the funnel hole at the bottom of the funnel-shaped cone is connected with an electromagnetic valve; the bottom of the cone is provided with a sensor capable of identifying the turbidity of the water body, the output end of the sensor is in signal connection with the input end of the controller, and the output end of the controller is in signal connection with the input end of the electromagnetic valve.
2. The treatment device for purifying mineral separation wastewater by using the efficient neutral flocculant according to claim 1, wherein the water outlet of the wastewater inlet pipe is arranged at a side surface in the water inlet tank.
3. The treatment device for purifying mineral separation sewage by using the efficient neutral flocculant according to claim 1, wherein the rotating plate is a circular plate body, and the flocculation outlet is an arc-shaped hole formed in the circular plate body; the hole washing wheel is a rotating wheel which is pressed on the circumference line where the distribution arc line of the arc-shaped holes is located and fixed on the bottom of the funnel by a hinge, the cross section of the rotating wheel along the axial direction is olive-shaped, the diameter of the circular cross section of the two small ends of the olive shape is smaller than the width of the hole for discharging the cotton fibers, the diameter of the circular cross section of the waist of the olive shape is larger than the width of the hole for discharging the cotton fibers, and when the hole for discharging the cotton fibers rotates to the position of the hole washing wheel under the driving of the rotating plate, the wheel body of the hole washing wheel sinks and stretches into the hole for discharging the cotton fibers.
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| CN109607862A (en) * | 2018-12-25 | 2019-04-12 | 郑州江宇水务工程有限公司 | A kind of one-stop purifier of efficient tower type flocculation |
| CN110104710B (en) * | 2019-06-21 | 2022-09-20 | 山东诚邦重工有限公司 | Water circulation treatment device for sand washer |
| CN115057553B (en) * | 2022-06-24 | 2023-08-15 | 河南林泉环保科技有限公司 | Chemical wastewater treatment device |
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