CN116078270B - Flocculant adding system - Google Patents

Abstract

The invention provides a flocculant adding system, and relates to the technical field of sewage treatment equipment; the device comprises a base, a sample collection mechanism and a flocculating agent adding mechanism; the sample collection mechanism comprises a water hammer pump, a communicating box and a plurality of sample boxes, wherein the communicating box is arranged on the base, each sample box is respectively arranged at the lower side of the communicating box and communicated with the communicating box, the input end of the water hammer pump faces the input port of the mixing tank, and the output end of the water hammer pump is communicated with the communicating box; the flocculant adding mechanism comprises a first adding unit and a second adding unit, wherein the first adding unit is used for respectively adding flocculant into each sample box, and the second adding unit is used for adding flocculant into the mixing tank. The flocculant adding system provided by the invention can be used for quickly and accurately determining the adding proportion of the flocculant.

Description

Flocculant adding system

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a flocculant adding system.

Background

The flocculant is a chemical used for treating various polluted water bodies such as industrial wastewater, domestic water and the like, and can coagulate suspended matters in sewage into large flocculates, so that the solution can be clarified rapidly.

When flocculant is added into sewage, the addition amount of the flocculant is related to indexes such as turbidity, PH value, temperature, water quality and the like of the sewage; therefore, when adding flocculant into sewage, a proper amount of flocculant is required to be added according to the water condition of the sewage, if the flocculant is added too little, the flocculation effect is reduced, but if the flocculant is added excessively, on the one hand, the material cost of the flocculant is increased, and on the other hand, the flocculation effect is reduced, so that the effluent is more turbid.

In order to determine the proper flocculant addition amount, in the prior art, a worker generally samples and performs test proportioning manually to determine the qualified addition amount, and the method determines a relatively accurate result, but has lower efficiency, and can not respond quickly after the water condition of the incoming water changes.

In view of the above problems, some patents, such as the chinese patent application of application No. 202110392142.7, provide a technique for determining the addition amount of a flocculant by measuring parameters of sewage and treated water; the technology can respond to the change of the water condition of the incoming water more quickly and adjust the addition amount of the flocculating agent.

However, by measuring the parameters of the sewage and determining the addition amount of the flocculant, the error is large.

Disclosure of Invention

Therefore, the invention provides a flocculant adding system, which can at least partially solve the technical problem that the determination of the adding amount of the sewage flocculant in the prior art is inconvenient.

The technical scheme of the invention is as follows:

a flocculant dosing system disposed on one side of a mixing tank, comprising:

a base;

the sample collection mechanism comprises a water hammer pump, a communication box and a plurality of sample boxes; the communication boxes are arranged on the base, the sample boxes are arranged on the lower side of the communication boxes and are communicated with the communication boxes, the input end of the water hammer pump is arranged facing the input port of the mixing tank, and the output end of the water hammer pump is communicated with the communication boxes;

the flocculant adding mechanism comprises a first adding unit and a second adding unit; the first adding unit is used for adding flocculating agents into the sample boxes respectively, and the second adding unit is used for adding flocculating agents into the mixing pool;

the first adding unit comprises a liquid storage box which is fixedly arranged relative to the base and used for storing flocculating agent, and also comprises an injection device; the injection device comprises barrel bodies which are arranged above the sample boxes in a one-to-one correspondence manner, each barrel body is respectively provided with a liquid inlet pipe communicated with the liquid storage box and an insertion pipe which extends into the corresponding sample box, each liquid inlet pipe is provided with a first one-way valve which is communicated from the liquid storage box to the barrel body in a one-way manner, and each insertion pipe is provided with a second one-way valve which is communicated from the barrel body to the sample box in a one-way manner;

the injection device also comprises pistons which are driven by the power device to slide in the cylinders in a one-to-one correspondence manner; when the piston slides bidirectionally, flocculant can be sucked from the liquid storage box through the liquid inlet pipe and the flocculant can be injected into the sample box through the insertion pipe.

Further, the communication box comprises a bottom plate, a plurality of side plates connected with each side edge of the bottom plate respectively and connected end to end in sequence, and a cover plate arranged at the top end of each side plate; the bottom plate comprises a flat plate section, and an inclined plate section which is connected with one side of the flat plate section and extends downwards in an inclined mode; a plurality of through holes are formed in the bottom surface of the flat plate section, and the top openings of the sample boxes are correspondingly covered on the through holes one by one; and a water outlet is arranged between one side of the inclined plate section, which is far away from the flat plate section, and the adjacent side plate.

Further, the insertion pipes are rotatably arranged on the cylinder body, passive gears are fixedly sleeved on the insertion pipes respectively, the passive gears are meshed in sequence, a driving gear is rotatably arranged on the base, and the driving gear is meshed with one of the passive gears.

Further, the driving gear is provided with an impeller coaxially and fixedly connected with the driving gear, the output end of the water hammer pump is provided with a plurality of output pipes, each output pipe is provided with an electromagnetic valve, the output port of one of the output pipes is communicated with the communication box, and the output port of one of the output pipes faces to the blade on one side of the impeller.

Further, each sample box shares a bottom support plate, the bottom support plates are hinged with the base, an elastic piece is arranged between the bottom support plates and the base, and the bottom support plates can bear the driving of the elastic piece to seal the bottom opening of each sample box; and the output port of one of the output pipes faces to the bottom supporting plate, and the bottom supporting plate can rotate by receiving the impact of the output water flow of the output pipe so as to open the bottom opening of each sample box.

Further, the volumes of the sample boxes are respectively different; the power device comprises a second electric telescopic rod and a process plate fixedly arranged on the telescopic end of the second electric telescopic rod; the top ends of the pistons are respectively provided with a connecting plate, and the top ends of the connecting plates are respectively fixedly connected with the process plate.

Further, the inner diameters of the sample boxes are equal; the power device comprises a plate body and two first electric telescopic rods, the telescopic ends of the two first electric telescopic rods are correspondingly hinged to the two ends of the plate body, connecting rods are respectively arranged on the top ends of the pistons, and the top ends of the connecting rods are respectively hinged to the plate body.

Further, the base is also provided with a liquid storage tank; the second adding unit comprises a metering pump, a liquid inlet pipeline communicated with the liquid storage tank is arranged at the input end of the metering pump, and an output pipeline component extending into the mixing tank is arranged at the output end of the metering pump.

Further, be equipped with stirring subassembly in the mixing tank, stirring subassembly includes support, motor and stirring piece, the support set firmly in the top in mixing tank, the motor sets firmly on the support, the stirring piece including can by the motor drives and pivoted disk body, and with the periphery of disk body links to each other and stretches into downwards a plurality of puddler in the mixing tank.

Further, the output pipeline component comprises a connecting disc, the connecting disc is fixedly arranged on the bracket, and the lower end face of the connecting disc is attached to the upper end face of the disc body; be equipped with first passageway on the connection pad, first passageway has the orientation the delivery outlet of disk body, be equipped with on the up end of disk body can keep with the ring channel that the delivery outlet is relative, be equipped with in the disk body with the second passageway of ring channel intercommunication, be equipped with in the puddler with the third passageway of second passageway intercommunication, just be equipped with on the puddler with a plurality of release hole of third passageway intercommunication.

The working principle and the beneficial effects of the invention are as follows:

according to the flocculant adding system provided by the invention, the communicating box and the plurality of sample boxes are arranged on the base, the sewage is sent into each sample box through the communicating box by the water hammer pump, then the flocculant is respectively added into each sample box by the first adding unit, and the proper flocculant adding amount can be determined by observing the flocculation effect in each sample box by making the adding proportion of the flocculant in each sample box different; the flocculant adding system can automatically complete the sampling of the sewage sample and the adding of the flocculant, and only a worker judges the proper adding proportion of the flocculant according to the result, and adjusts the adding amount of the second adding unit; on the one hand, the result is more accurate; on the other hand, the device can reduce the labor intensity of workers and can quickly respond to the change of water conditions.

Drawings

The invention will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a perspective view of a flocculant adding system provided in an embodiment of the present invention;

FIG. 2 is another perspective view of a flocculant addition system provided in an embodiment of the present invention;

FIG. 3 is a perspective view of a sample collection mechanism according to an embodiment of the present invention;

FIG. 4 is a perspective view of another angle of the sample collection mechanism provided by an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a top view of a sample collection mechanism provided in an embodiment of the present invention;

FIG. 7 is a cross-sectional view at A-A of FIG. 6;

FIG. 8 is an exploded view of a sample collection mechanism according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view of a mixing tank provided by an embodiment of the invention;

fig. 10 is a partial enlarged view at B in fig. 9.

In the figure: 100-a mixing tank;

200-base;

300-sample collection mechanism, 310-communicating box, 311-plate section, 312-inclined plate section, 313-side plate, 314-cover plate, 320-sample box, 330-liquid storage box, 340-bottom support plate, 350-reserved pipe, 301-through hole, 302-water outlet, 303-second interface and 304-third interface;

400-flocculant adding mechanism;

500-injection device, 510-barrel, 511-connecting section, 520-insertion tube, 521-straight tube section, 522-inclined tube section, 530-piston, 531-connecting rod, 501-first interface;

610-driven gear, 620-driving gear, 630-impeller;

700-a first electric telescopic rod, 710-a plate body;

810-a liquid storage tank, 820-a bracket, 830-a motor, 840-a stirring piece, 841-a disc body, 842-a stirring rod, 850-a connecting disc, 801-a first passage, 802-an annular groove, 803-a second passage and 804-a third passage;

900-collection tank.

Description of the embodiments

The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The present embodiment provides a flocculant dosing system for placement on one side of a mixing tank 100. Referring to fig. 1 to 3, the flocculant dosing system includes a base 200, a sample collection mechanism 300, and a flocculant dosing mechanism 400. The sample collection mechanism 300 comprises a water hammer pump, a communication box 310 and a plurality of sample boxes 320; the communicating box 310 is disposed on the base 200, each sample box 320 is disposed below the communicating box 310 and communicates with the communicating box 310, an input end of the water hammer pump is disposed facing an input port of the mixing tank 100, and an output end of the water hammer pump communicates with the communicating box 310.

The flocculant adding mechanism 400 comprises a first adding unit and a second adding unit, wherein the first adding unit is used for adding flocculant into each sample box 320 respectively, and the second adding unit is used for adding flocculant into the mixing tank 100.

Referring to fig. 2 to 5, the first dosing unit includes a liquid storage box 330 fixedly provided with respect to the base 200 for storing a flocculant, and further includes an injection device 500. The injection device 500 comprises cylinder bodies 510 which are arranged above the sample boxes 320 in a one-to-one correspondence manner, wherein each cylinder body 510 is respectively provided with a liquid inlet pipe communicated with the liquid storage box 330 and an insertion pipe 520 which extends into the corresponding sample box 320, the liquid inlet pipe is provided with a first one-way valve which is communicated with the cylinder body 510 from the liquid storage box 330 in a one-way manner, and the insertion pipe 520 is provided with a second one-way valve which is communicated with the sample box 320 from the cylinder body 510 in a one-way manner; the injection device 500 further includes pistons 530 that are actuated by the power device to slide within each cylinder 510 in a one-to-one correspondence; when the piston 530 slides in both directions, flocculant can be sucked from the reservoir 330 through the liquid inlet pipe, and flocculant can be injected into the sample box 320 through the insertion pipe 520.

It should be noted that, the liquid inlet pipe adopts a hose, which can be set according to actual requirements, one end of the liquid inlet pipe can be communicated with the cylinder 510 through the first interface 501 shown in fig. 5 and arranged on the cylinder 510, and the other end is communicated with the liquid storage box 330, so that the understanding is not affected, and each liquid inlet pipe is not shown in the drawing of the embodiment.

In summary, in the flocculant adding system of this embodiment, sewage can be input into each sample box 320 by the water hammer pump, and then flocculant is respectively injected into each sample box 320 by the first adding unit, so that by making the ratio of the flocculant injected into each sample box 320 unequal, a worker can determine a suitable flocculant adding ratio according to the test result in each sample box 320, and control the second adding unit to input a proper amount of flocculant into the mixing tank 100.

Compared with the flocculant adding amount test performed by manual sampling of a worker, the flocculant adding system of the embodiment can automatically perform the flocculant adding amount test by arranging each sample box 320 and the first adding unit, so that on one hand, the labor intensity of the worker can be reduced, on the other hand, the flocculant adding amount test can be continuously performed, and the change of the water condition of sewage can be responded more quickly. Compared with the method for collecting the relevant data of the sewage and adjusting the addition amount of the flocculant, the flocculant adding system of the embodiment can obtain more accurate results because the flocculation effect of the sewage is related to various parameters of the sewage.

Wherein, each sample box is made of transparent materials so as to facilitate the observation of the results of workers; further, a camera may be provided on the base, and the test results may be photographed by the camera and remotely transmitted to the worker.

Referring to fig. 6 and 7, the communication box 310 of the present embodiment includes a bottom plate, a plurality of side plates 313 connected to each side of the bottom plate and connected end to end in sequence, and a cover plate 314 provided on the top of each side plate 313. Wherein, the bottom plate comprises a flat plate section 311, and an inclined plate section 312 connected with one side of the flat plate section 311 and extending downwards in an inclined manner; the bottom surface of the flat plate section 311 is provided with a plurality of through holes 301, the top of each sample box 320 is provided with openings corresponding to each through hole 301 one by one, and a water outlet 302 is arranged between one side of the inclined plate section 312 away from the flat plate section 311 and the adjacent side plate 313.

Based on the above structure, when the output end of the water hammer pump inputs sewage into the communication box 310; the sewage in the communicating box 310 can enter each sample box 320 through the communicating box 310 and fill each sample box 320; the solution of this embodiment can more simply fill the sewage sample into each sample cartridge 320 than adding the sewage sample into each sample cartridge 320 one by one.

On the basis of the above, in the present embodiment, by providing the inclined plate section 312 extending obliquely downward on the bottom plate of the communication box 310, and providing the drain outlet 302 at the bottom end of the inclined plate section 312; after the sewage sample is poured into each sample box 320, the redundant sewage in the communication box 310 can be discharged through the water outlet 302, so that the sewage in the communication box 310 is prevented from influencing the test effect of each sample box 320.

In this embodiment, referring to fig. 9, a collecting tank 900 is fixedly arranged below the sample box 320, the collecting tank 900 is communicated with the mixing tank 100 through a pipeline, and sewage discharged from the discharge outlet 302 falls into the collecting tank 900 and is discharged back into the mixing tank 100 through the pipeline; and the sewage output by the second output pipe and the fourth output pipe described below can also fall into the collecting tank 900 and be returned to the mixing tank 100.

In this embodiment, referring to fig. 5, a connecting section 511 having a smaller diameter than the cylinder 510 is provided at the bottom end of the cylinder 510, the insertion tube 520 is rotatably inserted into the connecting section 511, and the space between the insertion tube 520 and the connecting section 511 is sealed. While the insertion tube 520 is rotatable, the flocculant within the cartridge 510 is able to pass through the insertion tube 520 into the corresponding sample cartridge 320.

The structure in which the insertion tube 520 is rotatably coupled to the connection section 511 and is sealed may be referred to the prior art, and will not be described in detail herein.

Referring to fig. 7, the insertion tube 520 of the present embodiment includes a straight tube segment 521, and an inclined tube segment 522 connected to the lower end of the straight tube segment 521 and inclined with respect to the straight tube segment 521. Specifically, the straight pipe section 521 is rotatably connected to the connecting section 511.

In this embodiment, by arranging the insertion tube 520 to include the straight tube segment 521 and the inclined tube segment 522, when the insertion tube 520 rotates, the sewage and the flocculating agent in the sample box 320 can be better agitated, so that the flocculating agent and the sewage are quickly mixed, and the flocculating effect of the sewage in the sample box 320 is improved.

Referring to fig. 8, in the present embodiment, each of the insertion tubes 520 is fixedly sleeved with a driven gear 610, and each of the driven gears 610 is sequentially engaged; a driving gear 620 is rotatably provided on the base 200, and the driving gear 620 is engaged with one of the driven gears 610.

Based on the above structure, when the driving gear 620 rotates, each driven gear 610 can be driven to rotate, and thus each insertion tube 520 rotates, so as to stir the sewage sample with the flocculant added in the sample box 320.

In this embodiment, referring to fig. 8, an impeller 630 coaxially and fixedly connected to the driving gear 620 is provided on the driving gear 620, a plurality of output pipes are provided on the output end of the hydraulic ram, electromagnetic valves are respectively provided on the output pipes, and an output port of one of the output pipes is communicated with the communication box 310, which is referred to as a first output pipe in this embodiment; the output of one of the output pipes is directed towards the blade on the side of the impeller 630, which in this embodiment is called the second output pipe.

It should be noted that, the first output pipe may be communicated with the communication box 310 through the second interface 303 shown in fig. 4, and the second output pipe may blow the blades of the impeller 630 through the third interface 304 shown in fig. 4; the first output pipe and the second output pipe, and the solenoid valve thereon, are not shown in the drawings of the present embodiment, since they do not affect understanding.

Based on the above structure, when the solenoid valve on the first output pipe is opened, the sewage sample can be injected into the communication box 310 and each sample box 320; after the injection of the sewage sample into each sample box 320 and the addition of the flocculant into each sample box 320 are completed, the electromagnetic valve on the second output pipe can be opened, and the sewage sprayed by the second output pipe impacts the blades of the impeller 630, so that the impeller 630 rotates, and further, each insertion pipe 520 is sequentially driven to rotate, and the sewage added with the flocculant is stirred.

In this embodiment, the output port of one of the output pipes faces the mixing tank 100, which is referred to as a third output pipe in this embodiment, and after the electromagnetic valve on the third output pipe is opened, the water flow output by the third output pipe directly flows back into the mixing tank 100.

In this embodiment, the third output pipe is provided; when only the electromagnetic valve on the second output pipe is opened, the water pressure output by the second output pipe is larger, so that the impeller 630 can be pushed to rotate more quickly, and the insertion pipes 520 are stirred quickly; after the insert pipe 520 is rapidly stirred for a period of time, the electromagnetic valve on the third output pipe is opened, at this time, part of sewage directly flows back to the mixing tank 100 through the third output pipe, so that the impact force of the water flow output by the second output pipe can be reduced, the rotation speed of the impeller 630 is reduced, the stirring speed of the insert pipe 520 is reduced, and the sample is slowly stirred. The sample is stirred rapidly and then stirred slowly, so that flocculation of the sample is facilitated.

The third output pipe is not shown in the drawings of the present embodiment, since it does not affect understanding.

In this embodiment, referring to fig. 3, each sample box 320 shares a bottom support plate 340, and each bottom support plate 340 is hinged with the base 200, an elastic member is disposed between the bottom support plate 340 and the base 200, and the bottom support plate 340 can receive the driving force of the elastic member to seal the bottom opening of the sample box 320; and the output port of one of the output pipes faces to the bottom support plate 340, which is called a fourth output pipe in this embodiment, the bottom support plate 340 can rotate by receiving the impact of the output water flow of the fourth output pipe, so that the bottom opening of each sample box 320 is opened.

As shown in fig. 3, a reserved pipe 350 is provided on the base 200, and an output port of the reserved pipe 350 faces the bottom plate 340; the fourth output pipe described above is connected to the input port of the reserve pipe 350, and is not shown in the drawings of this embodiment, since it does not affect understanding.

Based on the above structure, after the flocculation test of the sample is completed, the electromagnetic valve on the fourth output pipe can be opened, the sewage is sprayed out from the output port of the fourth output pipe to impact the bottom support plate 340, so as to overcome the elastic force applied to the bottom support plate 340 by the elastic member, and the bottom support plate 340 can rotate downwards, after that, the liquid in the sample box 320 can flow out through the opening at the bottom of the sample box 320, after the liquid in the sample box 320 is completely discharged, the electromagnetic valve on the fourth output pipe is closed, the impact of the bottom support plate 340 is stopped, and the bottom support plate 340 can reset under the driving of the elastic member to block the opening at the bottom of each sample box 320 for the next test.

In this embodiment, the elastic member is a torsion spring; the torsion spring is not shown in the drawings of the present embodiment as it does not affect understanding.

In some embodiments, the elastic member may also be a tension spring disposed between the bottom bracket 340 and the base 200.

In this embodiment, referring to fig. 3, 4 and 8, the inner diameters of the respective sample cartridges 320 are equal; the power device includes a plate 710 and two first electric telescopic rods 700, wherein the telescopic ends of the two first electric telescopic rods 700 are respectively hinged to two ends of the plate 710, the top ends of the pistons 530 are respectively provided with a connecting rod 531, and the top ends of the connecting rods 531 are respectively hinged to the plate 710.

The hinge holes of the plate 710 and the first electric telescopic rod 700 and the hinge holes of the connecting rod 531 are elongated holes.

Based on the above structure, when the two first electric telescopic rods 700 drive the plate 710 to move upwards, each piston 530 can be driven to move upwards, and the flocculant can be extracted from the liquid storage box 330; by adjusting the length of the upward extension of the extension ends of the two first electric extension poles 700, for example, by making the length of the upward extension of the extension ends of the two first electric extension poles 700 unequal, the elevation of each piston 530 can be made unequal, and the amount of flocculant sucked in each cylinder 510 can be made different; thereafter, the telescopic ends of the two first electric telescopic rods 700 move downward to push the pistons 530, and after the flocculant in the cylinder 510 is injected into the corresponding sample boxes 320, the ratio of the flocculant added in each sample box 320 is different, and the appropriate ratio of the flocculant can be determined by the flocculation effect of the sewage sample in each sample box 320 finally.

In addition, in this embodiment, by providing the power device with the above structure, the proportion of the flocculant added to the sample in each cylinder 510 can be further adjusted by adjusting the proportion of the extension ends of the two first electric extension rods 700.

In some embodiments, the volumes of the sample boxes 320 may be different, and the piston 530 is driven by the same second electric telescopic rod to rise or fall, at this time, the amount of the sewage sample in each sample box 320 is different, and the amount of the flocculant added may be equal, or the ratio of the flocculant added in each sample box 320 may be different. In this case, the ratio of the flocculant to be added to each sample cartridge 320 is less convenient to adjust than in the case of the present embodiment.

The second adding unit of this embodiment includes a metering pump, a liquid inlet pipeline communicated with the liquid storage tank 810 is disposed on an input end of the metering pump, and an output pipeline assembly extending into the mixing tank 100 is disposed on an output end of the metering pump.

In this embodiment, by setting the second adding unit with the above structure, the flocculant in the liquid storage tank 810 can be pumped into the mixing tank 100 by the metering pump through the output pipe assembly, and mixed with the sewage in the mixing tank 100, and the staff can adjust the flow of the flocculant input into the mixing tank 100 by the metering pump according to the flow of the sewage filled into the mixing tank 100 from the outside according to the ratio determined by the test results of the sample boxes 320.

Referring to fig. 1, 9 and 10, in this embodiment, a stirring assembly is disposed in the mixing tank 100, and the stirring assembly includes a bracket 820, a motor 830 and a stirring member 840, the bracket 820 is fixedly disposed above the mixing tank 100, the motor 830 is fixedly disposed on the bracket 820, the stirring member 840 includes a disc 841 coaxially and fixedly connected to a motor shaft of the motor 830, and a stirring rod 842 connected to an outer periphery of the disc 841 and extending downward into the mixing tank 100.

Based on the above structure, the motor 830 can drive the stirring rod 842 to rotate, so as to better mix the sewage with the flocculant.

Referring to fig. 1 and 10, in the present embodiment, the aforementioned output pipe assembly includes a connection pad 850, the connection pad 850 is fixedly disposed on the bracket 820, and a lower end surface of the connection pad 850 is attached to an upper end surface of the pad body 841; the connection disc 850 is provided with a first passage 801, the first passage 801 has an output port facing the disc 841, the upper end surface of the disc 841 is provided with an annular groove 802 capable of being opposite to the output port and a second passage 803 communicated with the annular groove 802, the stirring rod 842 is internally provided with a third passage 804 communicated with the second passage 803, and the stirring rod 842 is provided with a plurality of release holes communicated with the third passage 804.

Based on the above structure, when the stirring member 840 rotates, the flocculant outputted from the metering pump can be conveyed to the first passage 801 via a pipe, and released into the mixing tank 100 via the annular groove 802, the second passage 803, the third passage 804, and the respective release holes.

In this embodiment, since the flocculant is released through each release hole on the stirring rod 842, the flocculant enters the flocculation tank at different positions along with the rotation of the stirring rod 842, that is, the flocculant is dispersed when entering the mixing tank 100, so that the flocculant and sewage have better mixing effect, and the flocculation effect of sewage is improved.

In this embodiment, a third one-way valve is disposed in each release hole and is turned on from the third passage 804 to the outside. It should be noted that the third check valve may be an existing product, and each release hole and the third check valve thereon are not shown in the drawings of this embodiment, since they do not affect understanding.

The whole working process of the flocculant throwing device of the embodiment is as follows:

when the outside starts to charge sewage into the mixing tank 100, the electromagnetic valve on the first output pipe is controlled to be opened, and the water hammer pump inputs the sewage into each sample box 320;

the telescopic ends of the two first electric telescopic rods 700 are lifted according to a preset height, so that the cylinders 510 extract different amounts of flocculating agents from the liquid storage boxes 330;

the telescopic ends of the two first electric telescopic rods 700 move downwards, and flocculant in each cylinder 510 is respectively injected into the corresponding sample box 320;

opening the electromagnetic valve on the second output pipe, and enabling the sewage output by the second output pipe to impact the impeller 630 to drive the driving gear 620 and each driven gear 610 to rotate so as to stir the sewage sample in each sample box 320;

after the quick stirring is carried out for a period of time, the electromagnetic valve on the second output pipe is kept open, and the electromagnetic valve on the third output pipe is opened, so that the sewage samples in the sample boxes 320 are slowly stirred;

observing flocculation conditions of the sewage samples in the sample boxes 320 by workers, and determining the flocculant adding proportion for enabling the sewage samples to have the best effect;

according to the determined proportion, the amount of flocculant input into the mixing tank 100 by the metering pump is adjusted according to the flow of sewage input into the mixing tank 100 from the outside;

closing the rest electromagnetic valves, opening the electromagnetic valve on the fourth output pipe, enabling the bottom supporting plate 340 at the bottom of each sample box 320 to rotate downwards, and enabling the sewage sample in each sample box 320 to flow out to wait for the next test.

In the above process, the test can be performed several times by adjusting the extension ratio of the extension ends of the two first electric extension rods 700, so as to more accurately determine the addition ratio of the flocculant.

In conclusion, the flocculant adding system of the embodiment can automatically sample sewage, and test the adding amount of the flocculant, so that the adding amount of the flocculant can be conveniently and quickly determined by staff.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (6)

1. A flocculant dosing system provided on one side of a mixing tank (100), comprising:

a base (200);

the sample collection mechanism (300) comprises a water hammer pump, a communication box (310) and a plurality of sample boxes (320); the communication boxes (310) are arranged on the base (200), the sample boxes (320) are arranged on the lower side of the communication boxes (310) and are communicated with the communication boxes (310), the input end of the water hammer pump faces the input port of the mixing tank (100), and the output end of the water hammer pump is communicated with the communication boxes (310);

a flocculant adding mechanism (400) comprising a first adding unit and a second adding unit; the first adding unit is used for adding flocculating agents into the sample boxes (320) respectively, and the second adding unit is used for adding flocculating agents into the mixing tank (100);

the first adding unit comprises a liquid storage box (330) which is fixedly arranged relative to the base (200) and used for storing flocculating agent, and also comprises an injection device (500); the injection device (500) comprises barrel bodies (510) which are arranged above the sample boxes (320) in a one-to-one correspondence manner, each barrel body (510) is respectively provided with a liquid inlet pipe communicated with the corresponding liquid storage box (330), and an insertion pipe (520) which extends into the corresponding sample box (320), the liquid inlet pipe is provided with a first one-way valve which is communicated with the barrel bodies (510) from the liquid storage box (330) in a one-way manner, and the insertion pipe (520) is provided with a second one-way valve which is communicated with the sample boxes (320) from the barrel bodies (510) in a one-way manner;

the injection device (500) further comprises pistons (530) driven by the power device to slide in the cylinders (510) in a one-to-one correspondence; when the piston (530) slides bidirectionally, flocculant can be sucked from the liquid storage box (330) through the liquid inlet pipe and the flocculant can be injected into the sample box (320) through the insertion pipe (520);

the bottom end of the cylinder body (510) is provided with a connecting section (511) with the diameter smaller than that of the cylinder body (510), the insertion pipe (520) is rotatably arranged in the connecting section (511) in a penetrating mode, and the insertion pipe (520) and the connecting section (511) are sealed;

the insertion tube (520) includes a straight tube section (521), and an inclined tube section (522) connected to a lower end of the straight tube section (521) and inclined with respect to the straight tube section (521);

each insertion tube (520) is fixedly sleeved with a driven gear (610), each driven gear (610) is sequentially meshed, a driving gear (620) is rotatably arranged on the base (200), and each driving gear (620) is meshed with one of the driven gears (610);

the driving gear (620) is provided with an impeller (630) which is coaxially and fixedly connected with the driving gear (620), the output end of the water hammer pump is provided with a plurality of output pipes, each output pipe is respectively provided with an electromagnetic valve, the output port of one output pipe is communicated with the communication box (310), and the output port of the other output pipe faces to a blade at one side of the impeller (630);

the inner diameter of each sample box (320) is equal; the power device comprises a plate body (710) and two first electric telescopic rods (700), the telescopic ends of the two first electric telescopic rods (700) are hinged to two ends of the plate body (710), connecting rods (531) are respectively arranged on the top ends of the pistons (530), and the top ends of the connecting rods (531) are respectively hinged to the plate body (710).

2. The flocculant adding system according to claim 1, wherein the communication box (310) comprises a bottom plate, a plurality of side plates (313) connected with each side edge of the bottom plate in turn end to end, and a cover plate (314) arranged on the top end of each side plate (313); the bottom plate comprises a flat plate section (311), and an inclined plate section (312) which is connected with one side of the flat plate section (311) and extends downwards in an inclined manner; a plurality of through holes (301) are formed in the bottom surface of the flat plate section (311), and the top openings of the sample boxes (320) are in one-to-one correspondence to cover the through holes (301); a water outlet (302) is arranged between one side of the inclined plate section (312) far away from the flat plate section (311) and the adjacent side plate (313).

3. The flocculant dosing system of claim 2, wherein each of the sample cartridges (320) shares a bottom plate (340), and the bottom plate (340) is hinged to the base (200), an elastic member being provided between the bottom plate (340) and the base (200), the bottom plate (340) being capable of receiving the elastic member to actuate to block a bottom opening of each of the sample cartridges (320); and the output port of the other output pipe is towards the bottom supporting plate (340), and the bottom supporting plate (340) can rotate by bearing the impact of the output water flow of the output pipe so as to open the bottom opening of each sample box (320).

4. A flocculant dosing system according to any one of claims 1-3, wherein the base is further provided with a liquid reservoir (810); the second adding unit comprises a metering pump, a liquid inlet pipeline communicated with the liquid storage tank (810) is arranged at the input end of the metering pump, and an output pipeline component extending into the mixing tank (100) is arranged at the output end of the metering pump.

5. The flocculant adding system of claim 4, wherein a stirring assembly is provided in the mixing tank (100), the stirring assembly comprises a bracket (820), a motor (830) and a stirring member (840), the bracket (820) is fixedly arranged above the mixing tank (100), the motor (830) is fixedly arranged on the bracket (820), the stirring member (840) comprises a disk body (841) capable of being driven to rotate by the motor (830), and a plurality of stirring rods (842) connected with the periphery of the disk body (841) and extending downwards into the mixing tank (100).

6. The flocculant dosing system of claim 5, wherein the output line assembly comprises a land (850), the land (850) is fixedly arranged on the bracket (820), and a lower end surface of the land (850) is attached to an upper end surface of the land body (841); be equipped with first passageway (801) on connection pad (850), first passageway (801) have the orientation the delivery outlet of disk body (841), be equipped with on the up end of disk body (841) can keep with ring channel (802) that the delivery outlet is relative, be equipped with in disk body (841) with second passageway (803) of ring channel (802) intercommunication, be equipped with in puddler (842) with third passageway (804) of second passageway (803) intercommunication, just be equipped with on puddler (842) with a plurality of release hole of third passageway (804) intercommunication.

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