CN209076112U - A kind of potassium permanganate composites - Google Patents

Abstract

The utility model relates to wastewater treatment equipment technical field, especially a kind of potassium permanganate composites；Including water inlet pipe, flowmeter is connected on water inlet pipe, the connection of the entrance of water inlet pipe and stirring pool, the inlet of stirring pool is equipped with coagulant dosage pump, there is blender in stirring pool, stirring pool is connect with integrated form flocculation zone, stirring pool upper end is equipped with water hole and connect with integrated form flocculation zone, flocculant chemical feed pipe is equipped at water hole, flocculant concentration pump is connected on chemical feed pipe, integrated form flocculation zone includes that the rapid flocculation area of not returned sludge and alumen ustum increase required flocculation zone at a slow speed, flocculation zone is connect by inclined tube with settling zone at a slow speed, the top of settling zone is equipped with inclined plate, the bottom of settling zone is equipped with reflux cone, the top of reflux cone is equipped with back mud pipe, the bottom of settling zone is equipped with mud scraper；Potassium permanganate composites in the utility model, effluent quality is good, and medicine consumption is few, and sludge solid content is high.

Description

A kind of potassium permanganate composites

Technical field

The utility model relates to wastewater treatment equipment technical field, especially a kind of potassium permanganate composites.

Background technique

Existing Industrial Wastewater Treatment sedimentation tank device mainly include the following types:

The first: simple airfloat equipment, including air bearing reaction zone scrape slag system, air dissolving system, automatically controlled etc., to be processed Water enters contact zone of dissolved air flotation, by molten gas bubble by impurities in water flotation to the water surface, then, scrapes slag system and hangs by dross, electricity Control is mostly based on manually.The device needs additional configuration medicament flocculation plant, further, since contact zone of dissolved air flotation water level is relatively Height needs optional equipment water pump to promote the medicament to have flocculated to contact zone of dissolved air flotation, can break floccule body, shadow in the process of promotion Air-flotation scum effect is rung, such case air bearing water outlet will appear many suspended matters, and such case will cause shadow for lower step process It rings.

Second: band coagulating sedimentation, including coagulating sedimentation area, air bearing reaction zone scrape slag system, air dissolving system, automatically controlled etc., Pending water passes through coagulation stirring area, and coagulation stirring area is only equipped with a blender, and then the water after flocculation enters gas Floating contact zone then, scrapes slag system and hangs by dross by molten gas bubble by impurities in water flotation to the water surface, automatically controlled mostly with hand Based on dynamic.Although the device is equipped with flocculation sedimentation area, but it is only simple be equipped with one or two blenders, cannot well by Medicament is mixed, and the alumen ustum of formation is than more loose, and the dross water outlet water content in contact zone of dissolved air flotation is relatively high, in addition, alumen ustum It is not formed well, has partly precipitated to contact zone of dissolved air flotation bottom, being discharged will appear many suspended matters, and such case is under Step process will cause influence.

The third: being added inclined plate, including air bearing reaction zone (containing inclined plate), scrape slag system, air dissolving system in airfloat equipment, Automatically controlled etc., pending water enters contact zone of dissolved air flotation, by molten gas bubble by impurities in water flotation to the water surface, then, scrapes slag system Dross is hung, it is automatically controlled mostly based on manually.This air bearing pattern and it is upper two kinds the difference is that contact zone of dissolved air flotation increase Adding inclined plate, the purpose of this pattern is to change the form of down-flow water, it is allowed to be converted to current stabilization, but for whole air flotation zone Treatment effect is without too big effect, and the path that water is walked can be changed into propradation, this process, which can take out of, much sinks Suspended matter, such case will cause influence for subsequent technique.

Above several air bearings are common on the market and run more air bearing, modal shift, but all by air bearing and Depositing technology contacts well, and effect is all less desirable, needs mating different process equipment that can realize target call.

Summary of the invention

It is good that the object of the present invention is to provide a kind of effluent qualities, and medicine consumption is few, the high potassium permanganate composites of sludge solid content.

In order to solve the above technical problems, The technical solution adopted by the invention is as follows:

A kind of potassium permanganate composites, including water inlet pipe are connected with flowmeter, the water inlet pipe and stirring on the water inlet pipe The entrance in pond connects, and the inlet of the stirring pool is equipped with coagulant dosage pump, has blender in the stirring pool, described to stir It mixes pond to connect with integrated form flocculation zone, the stirring pool upper end is equipped with water hole and connect with integrated form flocculation zone, the water hole Place is equipped with flocculant chemical feed pipe, and flocculant concentration pump is connected on the chemical feed pipe, and the integrated form flocculation zone includes not flowing back Flocculation zone, the bottom in the rapid flocculation area are equipped with bottom and cross water at a slow speed required for the rapid flocculation area of sludge and alumen ustum increase Hole is connected to flocculation zone at a slow speed, and the flocculation zone at a slow speed is connect by inclined tube with settling zone, and settling zone is arranged in the inclined tube Top, the bottom of the settling zone are equipped with reflux cone, and the top of the reflux cone is equipped with back mud pipe, and described time mud pipe and reflux are mixed Coagulation zone connection, the reflux coagulation area are connected with flocculation zone at a slow speed by opening, are connected with back dredge pump on described time mud pipe, described Reflux cone bottom is equipped with sludge pipe, and the sludge pipe is connect with mud discharging pump, and the settling zone is also connected with wet well, described Ultrasonic wave mud level meter is also equipped in settling zone, the bottom of the settling zone is equipped with mud scraper

Further, several probe tubes are provided with below the inclined tube.

Further, the dosing pump has two, wherein one is spare dosing pump.

Further, described time dredge pump selects screw pump, and the screw pump has two, wherein one is spare screw pump.

Further, the blender includes driving motor, and the stirring motor is connect by shaft coupling with stirring rod, institute Driving motor is stated to connect with PLC controller.

Further, the coagulant dosage pump and flocculant concentration pump are connect with PLC controller.

It is using the beneficial effect of technical solution of the present invention:

1, the potassium permanganate composites in the utility model are provided with blender in stirring pool due to being provided with stirring pool, can The alumen ustum precipitating formed after being reacted to avoid coagulant with sewage；Simultaneously because rapid flocculation area is provided with Hong stream propeller, With energy needed for ensuring rapid flocculation and flocculation, it may then ensure that can to form higher alumen ustum in flocculation zone at a slow speed close Degree, guarantees the integrality of alumen ustum；

2, the potassium permanganate composites in the utility model, due to being provided with ultrasonic wave mud level meter, ultrasonic wave in settling zone Mud level meter as whether spoil disposal control signal, accelerate spoil disposal caused by (1) mud position is excessively high: the interval of sludge pump shortens, Acceleration spoil disposal (t7) caused by one warning note is risen as mud position, the alarm start a time delays (t8), if delay (t8) mud position is still excessively high at the end of, and highly dense pond will receive stop signal after delay (t10), if high mud position terminates in t7 It disappears before, acceleration spoil disposal mode will break at one, and (t9) is interior to be kept；(2) forbid spoil disposal caused by mud position is too low: working as ultrasound Wave mud level meter detects that spoil disposal will be prohibited when mud layer position is low, and this avoids mud layer disappearances；Upon start up, which detects Mud position can start spoil disposal；When not spoil disposal for a long time (such as during debugging), if dirty mud has the danger of Yueization, it is proposed that daily Carry out spoil disposal several times.

3, the flocculant dosing pump in the utility model has two, wherein one is spare dosing pump, when one of wadding After solidifying agent dosing pump breaks down, spare flocculant dosing pump also be can be used, so as to ensure adding smoothly for flocculant, The smooth use of potassium permanganate composites will not be influenced due to the failure of flocculant dosing pump.

4, the dredge pump that returns in the utility model selects screw pump, and screw pump has two, wherein one is spare screw pump, when After one of them returns dredge pump failure, spare time dredge pump also be can be used, so as to ensure that sludge smoothly returns to flocculation zone It is interior, potassium permanganate composites will not be caused to be unable to normal use due to returning the damage of dredge pump, influence efficiency.

Detailed description of the invention

Present invention will be further explained below with reference to the attached drawings and examples.

Fig. 1 is the structural diagram of the present invention.

In figure: 1 water inlet pipe, 2 stirring pools, 3 blenders, 4 integrated form flocculation zones, 5 inclined tubes, 6 settling zones, 7 times mud pipes, 8 times Flow coagulation area, 9 reflux cones, 10 mud scrapers, 11 wet wells.

Specific embodiment

In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.

A kind of potassium permanganate composites, including water inlet pipe 1, are connected with flowmeter on water inlet pipe 1, water inlet pipe 1 and stirring pool 2 Entrance connection, the inlet of stirring pool 2 are equipped with coagulant dosage pump, have blender 3, stirring pool 2 and integrated form in stirring pool 2 Flocculation zone 4 connects, and 2 upper end of stirring pool is equipped with water hole and connect with integrated form flocculation zone 4, and flocculant dosing is equipped at water hole It manages, flocculant concentration pump is connected on chemical feed pipe, integrated form flocculation zone 4 includes that the rapid flocculation area of returned sludge and alumen ustum do not increase Flocculation zone, the bottom in rapid flocculation area are equipped with bottom water hole and are connected to flocculation zone at a slow speed, flocculate at a slow speed at a slow speed required for long Area is connect by inclined tube 5 with settling zone 6, and the top of settling zone 6 is arranged in inclined tube 5, and settling zone 6 is also connected with wet well 11, is sunk The bottom in shallow lake area 6 is equipped with reflux cone 9, and the top of reflux cone 9 is equipped with back mud pipe 7, returns mud pipe 7 and connect with reflux coagulation area 8, flows back Coagulation area 8 is connect with coagulation area at a slow speed by pipeline, and stirring pool 2 and reflux coagulation area 8 are returned on mud pipe 7 and connected by opening connection It is connected to back dredge pump, sludge reflux pump can be according to the state automatic start-stop in highly dense pond, and PLC is automatically adjusted according to raw water flow Frequency, sludge ratio are more than 15%, reduce the flow of reflux pump, if puree bed increases, then just reducing preset percentage Value (reflux pump discharge)；When the percent value of returned sludge obtains meeting, then regardless of raw water flow, the tune of reflux pump Whole value can be kept.Potassium permanganate composites are worked with the flow velocity of suspended sludge.In reaction tank therefore the percent value of sludge exists Lower than being increased under the range of inlet flow rate.The control principle of PLC is the prior art, is repeated no more in the utility model.Reflux cone 9 Bottom is equipped with sludge pipe, and sludge pipe connect with mud discharging pump, and mud discharging pump is connect with PLC controller, and PLC controller can be with According to the highly automated control in mud position for the accumulation water and settling zone for flowing through highly dense pond, the control principle of PLC is the prior art, this It is repeated no more in utility model.Ultrasonic wave mud level meter is also equipped in settling zone 6, ultrasonic wave mud level meter and combined aural and visual alarm connect It connects.When the mud position of highly dense pond settling zone is excessively high, mud discharging pump starts automatic forced, and mud discharging will automatically speed up；Cause This, can be to avoid the lasting raising of mud position；When the mud position of highly dense pond settling zone is too low, mud discharging pump stops automatic forced Only, mud discharging is by automatic retarding；It can thus be avoided the lasting reduction of mud position.Sludge is at 1 liter with graduated graduated cylinder Height, that is, sludge percentage (being indicated with %) of mud layer of the middle precipitating after 10 minutes.If taken without enough sludge The treatment effect obtained would not be satisfied with；If puree amount is excessive, the limitation of solid loading will be exceeded, mud bed has the danger of rising. Reaction tank sludge quantity general control sludge quantity after every heave is formed sediment 10 minutes is controlled in production run between 30~150ml System effect between 50-80ml is best.Raw water flow signal Zhong row feedforward closed-loop control frequency converter is acquired by PLC, it is right The control of returned sludge spiral shell revolution speed (can modify velocity coeffficient in XBT), guarantee that the wadding body total measurement (volume) in flocculation zone is constant, it is ensured that Suspended solid removal efficiency in sedimentation basin is stablized, and can also manually set frequency according to the actual situation to control returned sludge screw rod Revolution speed achievees the purpose that adjust back mud amount.The bottom of settling zone is equipped with mud scraper；The revolving speed of mud scraper allows for sludge It is sent to funnel bottom, but the revolving speed cannot be excessively high, to avoid alumen ustum is destroyed.Mud scraper revolving speed is set as every 7 when day-to-day operation Minute circles.

The purpose that ultrasonic wave mud level meter is designed in the utility model is that have one to water process because mud position is too high or too low Fixed influence, 1, mud position it is excessively high caused by accelerate spoil disposal: the interval of sludge pump shortens, and a warning note is risen by mud position Caused by acceleration spoil disposal (t7), the alarm start a time delays (t8), if delay (t8) at the end of mud position still mistake Height, highly dense pond will receive stop signal after delay (t10), if high mud position disappears before t7 terminates, accelerate spoil disposal mould Formula will break at one, and (t9) is interior to be kept.2, forbid spoil disposal caused by mud position is too low: when ultrasonic wave mud level meter detects mud layer position Spoil disposal will be prohibited when setting low, and this avoids mud layer disappearances；Upon start up, which detects that mud position can start spoil disposal；When For a long time not spoil disposal when (such as debugging during), if sludge has cured danger, it is proposed that carry out spoil disposal several times daily.

Working principle: (1) with raw water highly dense pond is filled；(2) start scraping in blender and settling zone 6 in stirring pool 2 Mud machine 10；(3) reflux and adding of agent are automatically ready；(4) if there is no sludge in system, from bottom carry out sludge reflux (from Sludge drainage system returned sludge is to reach this purpose).

Specific as follows: raw water flows into quick stirring pool 2 first, and coagulation, stirring in stirring pool 2 are carried out after contacting with coagulant 3 continuous operation of device is mixed, to help coagulant reaction that alumen ustum is avoided to precipitate, coagulant dosage pump stirs coagulant dosage to quick Pond entrance, the dosage of coagulant depends on property, concentration of suspension and the product of softening reaction of raw water in use process, throws Dosage must be determined according to the highest water inlet of concentration by stirring test.It needs to control following parameter in test: (1) temperature of raw water Degree, pH value, solid suspension, coloration, basicity etc.；(2) best pH value；(3) optimal coagulant dose；(4) sludge output；(5) it stirs The speed of blender 3 in pond 2: the revolving speed of blender 3 is it is ensured that polymer stirring is sufficient and flocculation is good.If revolving speed mistake Height, then alumen ustum just has broken danger.PAM dosage depend on raw water in suspended solids property and concentration and Soften the influence of medicament.It must be determined by the higher water inlet of chemical examination concentration.The parameter of control is needed in experiment is: (1) flocculating The concentration of record (2) settling velocity (3) sludge quantity preparation unit is adjusted by operator.Anyway, the polymer on toss area Concentration must be diluted to about 0.1g/I or so, to realize best flocculating effect.Integrated form flocculation zone 4 is continuous by two Region constitute, i.e., flocculation zone, rapid flocculation area exist at a slow speed required for the rapid flocculation area of returned sludge and alumen ustum do not increase There is Hong a stream propeller to be stirred in one tubbiness region, to ensure rapid flocculation and the required energy that flocculates.Flocculant It adds below blender and on the pipeline of returned sludge, carries out continuous outside from sludge condensation area to reflux coagulation area 8 Sludge backflow, high sludge concentration improve flocculating effect.Flocculation zone at a slow speed；The alumen ustum of generation density with higher.So Water flow to settling zone 6 at a slow speed to guarantee the integrality of alumen ustum afterwards.Settling zone 6 consists of two parts: the stratification of 5 lower section of inclined tube is heavy Form sediment: most of alumen ustum precipitates in the region.Inclined tube 5 clarifies module: inclined tube 5 is placed at the top of sedimentation basin (i.e. settling zone 6), is made Desilting area is increased with inclined tube 5, for removing remaining alumen ustum and generating final qualified water.Alumen ustum is deposited on sedimentation basin bottom Portion, Chi Zhongxin have an inverted cone -- and reflux cone 9,9 bottoms of reflux cone set a DN200 sludge pipe, and 9 tops of reflux cone are set A piece DN200 returns mud pipe, returns mud to flocculation basin by returning dredge pump.Sludge borrows the mud scraper with sepiment to receive by gravity Collection gets up, a diameter of 15m, and torque switch was housed on necessary electromotor power 1.5kw speed reducer, controls base as spoil disposal Number signal.Continuously sweep the concentration for promoting precipitating sludge.Partial sludge is back to flocculation zone by one screw pump.Sludge reflux Purpose be accelerate alumen ustum growth and increase alumen ustum density.

To prevent mud location probe from breaking down, as a preferred embodiment, set below the inclined tube 5 in the present embodiment The case where being equipped with several probe tubes, being used for routine observation mud bed liquid level.As puree location probe (i.e. ultrasonic wave mud level meter) goes out event Barrier, then the case where must periodically opening sampling valve observation mud bed liquid level.The number of observation depends on the stabilization of the system operation Property.Probe tube 5 has 4 in the present embodiment, and to realize the function, four sample point selectings are as follows: (1) No. 1 sample point: being used for The sludge of discharge；(2) No. 2 sample points: it is used for returned sludge；(3) No. 3 sample points: normal mud position；(4) No. 4 sample points: just Under the inclined plate of primary water, the set point of high mud position is located between the 3rd and No. 4 sample point；The setting point of low mud position Between the 2nd and No. 3 sample point；Mud bed liquid level must be stablized between the 2nd and No. 3 sample point；No. 1 Sample point is used to check the quality of returned sludge, and the sample extracted from No. 4 sample points should be clear water, and inclined plate near modules It should not show that mud bed liquid level is excessively high with the presence of sludge, otherwise.

As a preferred embodiment, the flocculant dosing pump in the present embodiment has two, wherein one adds to be spare Teat pipette, using this structure, after one of flocculant dosing pump breaks down, spare flocculant dosing pump also be can be used, It, will not be since the failure of flocculant dosing pump be to influence potassium permanganate composites so as to ensure adding smoothly for flocculant Smoothly use.

As a preferred embodiment, the dredge pump that returns in the present embodiment selects screw pump, and screw pump has two, wherein one Platform is spare screw pump, and using this structure, after one of them time dredge pump breaks down, spare time dredge pump also be can be used, from And may insure that sludge smoothly returns in flocculation zone, it will not cause potassium permanganate composites that cannot normally make due to returning the damage of dredge pump With influencing efficiency.

Since the comparison that the revolving speed of blender 3 stirred to polymer and flocculated situation is crucial, if revolving speed is excessively high, alum Flower just has broken danger, so the blender 5 in the present embodiment includes driving motor as a preferred embodiment, The stirring motor is connect by shaft coupling with stirring rod, and driving motor is connect with PLC controller, in order to improve the convenience of operation Property and improve the flocculating effect of sludge, driving motor is variable-frequency motor in the present embodiment, and variable-frequency motor and PLC controller connect It connects, PLC automatically controls the start and stop of highly dense pond reaction tank blender according to the state of raw water flow and highly dense pond, and the control of PLC is former Reason is the prior art, is repeated no more in the utility model.To adjust 5 speed of reaction tank blender be optimum to it is ensured that Polymer stirring is sufficient and flocculation is good, reduces the broken probability of alumen ustum.The Design of Rotation of blender A202A/B/C ensures Polymer stirring is sufficient and flocculation is good.If rotation speed is excessively high, alumen ustum just has broken danger.Blender 5 Revolving speed can be adjusted according to following principle Zhong rows: water temperature is lower or improves revolving speed when flocculating relatively difficult；Because of raw water characteristic Change and guard against the change of medicament alumen ustum is made to become frangible or in low discharge, by low turn when the water flow in reaction container becomes asymmetry Speed.

As a preferred embodiment, coagulant dosage pump and flocculant concentration pump in the present embodiment are controlled with PLC Device connection processed；PLC is required to add concentration, the configuration concentration of medicament and in operating status highly dense according to raw water flow The quantity in pond automatically controls the revolving speed of flocculant concentration pump.PLC according to raw water flow, it is required add concentration, medicament is matched The setting value for setting concentration and manual programming controller automatically controls the revolving speed that coagulant dosage pumps.The control principle of PLC is existing Technology repeats no more in the utility model.

Those of ordinary skill in fields it should be appreciated that, the utility model has the following beneficial effects: 1, the potassium permanganate composites in the utility model are provided with blender in stirring pool due to being provided with stirring pool, can be to avoid mixed The alumen ustum precipitating that solidifying agent is formed after reacting with sewage；Simultaneously because rapid flocculation area is provided with Hong stream propeller, it is fast to ensure Energy needed for speed flocculation and flocculation, may then ensure that can form higher alumen ustum density in flocculation zone at a slow speed, guarantee alum Colored integrality；

2, the potassium permanganate composites in the utility model, due to being provided with ultrasonic wave mud level meter, ultrasonic wave in settling zone Mud level meter as whether spoil disposal control signal, accelerate spoil disposal caused by (1) mud position is excessively high: the interval of sludge pump shortens, Acceleration spoil disposal (t7) caused by one warning note is risen as mud position, the alarm start a time delays (t8), if delay (t8) mud position is still excessively high at the end of, and highly dense pond will receive stop signal after delay (t10), if high mud position terminates in t7 It disappears before, acceleration spoil disposal mode will break at one, and (t9) is interior to be kept；(2) forbid spoil disposal caused by mud position is too low: working as ultrasound Wave mud level meter detects that spoil disposal will be prohibited when mud layer position is low, and this avoids mud layer disappearances；Upon start up, which detects Mud position can start spoil disposal；When not spoil disposal for a long time (such as during debugging), if dirty mud has the danger of Yueization, it is proposed that daily Carry out spoil disposal several times.

3, the flocculant dosing pump in the utility model has two, wherein one is spare dosing pump, when one of wadding After solidifying agent dosing pump breaks down, spare flocculant dosing pump also be can be used, so as to ensure adding smoothly for flocculant, The smooth use of potassium permanganate composites will not be influenced due to the failure of flocculant dosing pump.

4, the dredge pump that returns in the utility model selects screw pump, and screw pump has two, wherein one is spare screw pump, when After one of them returns dredge pump failure, spare time dredge pump also be can be used, so as to ensure that sludge smoothly returns to flocculation zone It is interior, potassium permanganate composites will not be caused to be unable to normal use due to returning the damage of dredge pump, influence efficiency.

Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.It is all in essence of the invention Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should all be included in the protection scope of the present invention.This The technical scope of item invention is not limited to the contents of the specification, it is necessary to its technology is determined according to scope of the claims Property range.

Claims (6)

1. a kind of potassium permanganate composites, it is characterised in that: including water inlet pipe, be connected with flowmeter on the water inlet pipe, it is described into The connection of the entrance of water pipe and stirring pool, the inlet of the stirring pool are equipped with coagulant dosage pump, stir in the stirring pool Device is mixed, the stirring pool is connect with integrated form flocculation zone, and the stirring pool upper end is equipped with water hole and connect with integrated form flocculation zone, It is equipped with flocculant chemical feed pipe at the water hole, flocculant concentration pump, the integrated form flocculation zone are connected on the chemical feed pipe Flocculation zone, the bottom in the rapid flocculation area are set at a slow speed required for increasing including the rapid flocculation area of not returned sludge and alumen ustum There is bottom water hole to be connected to flocculation zone at a slow speed, the flocculation zone at a slow speed is connect by inclined tube with settling zone, the inclined tube setting On the top of settling zone, the bottom of the settling zone is equipped with reflux cone, and the top of the reflux cone is equipped with back mud pipe, described time mud Pipe is connect with reflux coagulation area, and the reflux coagulation area passes through opening connection with flocculation zone at a slow speed, is connected on described time mud pipe Dredge pump is returned, reflux cone bottom is equipped with sludge pipe, and the sludge pipe is connect with mud discharging pump, and the settling zone is also connected with Wet well, ultrasonic wave mud level meter is also equipped in the settling zone, and the bottom of the settling zone is equipped with mud scraper.

2. a kind of potassium permanganate composites according to claim 1, it is characterised in that: be provided with several take below the inclined tube Sample pipe.

3. a kind of potassium permanganate composites according to claim 1, it is characterised in that: the dosing pump has two, wherein one Platform is spare dosing pump.

4. a kind of potassium permanganate composites according to claim 1, it is characterised in that: described time dredge pump selects screw pump, institute Stating screw pump has two, wherein one is spare screw pump.

5. a kind of potassium permanganate composites according to claim 1, it is characterised in that: the blender includes driving motor, The driving motor is connect by shaft coupling with stirring rod, and the driving motor is connect with PLC controller.

6. a kind of potassium permanganate composites according to claim 1, it is characterised in that: the coagulant dosage pump and flocculant Pump is added to connect with PLC controller.