CN218531336U - High-precision flotation dosing machine with automatic cleaning function - Google Patents

Abstract

The utility model discloses a high accuracy flotation dosing machine with self-cleaning function belongs to ore dressing technology flotation reagent and adds the field, including the support frame, fixed first liquid reserve tank and the second liquid reserve tank of being provided with on the support frame, the fixed conveying subassembly that is provided with on first liquid reserve tank and second liquid reserve tank, conveying subassembly are used for mixing the solution ration in first liquid reserve tank and the second liquid reserve tank and carry, still are provided with electric ball valve and pressure transmitter on first liquid reserve tank and second liquid reserve tank, and pressure transmitter is used for controlling electric ball valve's operating condition. Through the double detection of the metering pump and the mass flow meter, the accuracy of the addition and proportioning of the medicament is improved, the flotation effect can be improved through the mixing of the emulsifying pump, and the production cost is reduced; automatic cleaning is realized through the cooperation of the water turbine and the gear rack, the cleaning effect is better due to the combination of the flushing pipe and the hairbrush, the manual cleaning process can be replaced, the cleaning efficiency is improved, and the harm to workers is reduced.

Description

High-precision flotation dosing machine with automatic cleaning function

Technical Field

The utility model belongs to ore dressing technology flotation reagent adds the field, especially relates to a high accuracy flotation reagent feeding machine with self-cleaning function.

Background

Flotation is a mineral separation process in which solid minerals are floated from a water suspension (ore pulp) by using a surfactant-foaming agent (i.e., a flotation agent) which generates a large amount of bubbles according to differences in physical and chemical properties of the surfaces of the minerals.

The flotation agent is obtained by blending various medicaments and is used for adjusting the physicochemical properties of the selected minerals and the flotation medium, thereby enlarging the difference of hydrophilicity and hydrophobicity between the minerals and the gangue, better separating the minerals and achieving the purpose of mineral separation.

Most of the existing traditional flotation equipment chemicals adding machines are characterized in that each chemical corresponds to an independent switch, the chemicals are respectively added into the flotation equipment through different switch controls, and then the flotation machine is used for mixing and flotation, so that flotation can be realized, but the chemicals are mixed after being added respectively, and the dosage control needed by mixing of different chemicals is not accurate, so that the flotation effect is poor, the dosage is increased, and the production cost of enterprises is increased; meanwhile, the liquid storage tank needs to be cleaned when the agent is replaced, the current cleaning process needs to be finished manually in the tank body, the space in the tank body is limited, so that the operation of workers is inconvenient, the cleaning time is long, the production efficiency is influenced, and the personal safety of the workers is also harmed by the high-concentration agent in the tank body.

Therefore, a high-precision flotation reagent feeding machine with an automatic cleaning function needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide a high accuracy flotation dosing machine with self-cleaning function has realized the control to different medicament quantities to mix in advance through the emulsification pump, strengthened the effect of flotation, and the inside self-cleaning mechanism of box can wash the box inside automatically, replaced artifical entering washing, improved the cleaning efficiency, reduced the harm to the staff.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides a high accuracy flotation dosing machine with self-cleaning function, includes the support frame, fixed first liquid reserve tank and the second liquid reserve tank of being provided with on the support frame first liquid reserve tank with the fixed conveying subassembly that is provided with on the second liquid reserve tank, conveying subassembly be used for with first liquid reserve tank with the solution ration in the second liquid reserve tank mixes and exports first liquid reserve tank with still be provided with electric ball valve and pressure transmitter on the second liquid reserve tank, electric ball valve is used for controlling the switch-on and the disconnection of input pipeline, pressure transmitter is used for right electric ball valve controls first liquid reserve tank with still be provided with self-cleaning device in the second liquid reserve tank, self-cleaning device is used for right first liquid reserve tank with the inside self-cleaning that carries out of second liquid reserve tank.

Preferably, the conveying assembly comprises a first metering pump, a second metering pump and an emulsifying pump, the input end of the first metering pump is connected with the first liquid storage tank, the input end of the second metering pump is connected with the second liquid storage tank, the first metering pump is connected with the output end of the second metering pump, the input end of the emulsifying pump is connected with the connecting pipeline of the emulsifying pump, and the second metering pump is connected with the connecting pipeline of the emulsifying pump through a pressure gauge and a mass flow meter.

So set up, the ratio of accurate control medicament to improve the flotation effect of flotation agent.

Preferably, self-cleaning device is including fixed setting up first liquid reserve tank with carriage on the relative inner wall of a set of second liquid reserve tank, spacing groove, driving groove and counter weight groove have set gradually on the carriage the driving groove internal fixation is provided with the rack, two be provided with the branch liquid pipe between the carriage, the both ends of dividing the liquid pipe stretch into respectively the spacing inslot divide the liquid intraductal rotation to be provided with the transmission shaft, the both ends of transmission shaft are followed respectively divide the liquid pipe both ends to stretch out, and fixed being provided with the gear, the gear is located the driving groove, and with rack intermeshing still fixed cover is equipped with the hydraulic turbine on the transmission shaft the top of carriage still rotates and is provided with the pulley, the winding has the cable wire on the pulley, the one end of cable wire with divide the liquid pipe to link to each other, the other end of cable wire is fixed to be provided with the balancing weight, just the balancing weight slides and sets up in the counter weight inslot still the intercommunication is provided with the flushing pipe on the branch liquid pipe, the fixed brush that is provided with on the flushing pipe, the brush with first liquid reserve tank with the sliding fit of second liquid reserve tank inner wall.

So set up, can utilize the water that washes the box to provide power, realize belt cleaning device's automatic walking to reach the self-cleaning to the box, and make the cleaning performance better through the brush cooperation.

Preferably, still fixedly on the branch liquid pipe being provided with the spiral pipe, the spiral pipe is the PU material, just the free end of spiral pipe runs through first liquid reserve tank with second liquid reserve tank top.

So set up, not only can provide the washing water for dividing the liquid pipe, can also realize the change of length along with dividing the removal of liquid pipe.

Preferably, all be provided with the filtration storehouse in first liquid reserve tank with the second liquid reserve tank, filter the storehouse with the output intercommunication of electric ball valve filter the fixed filter tube that is provided with in bottom in storehouse first liquid reserve tank with still be provided with the blow off pipe on the outer wall of second liquid reserve tank, the one end of blow off pipe with filter the storehouse and link to each other.

So set up, can filter the large granule impurity that will concentrate, avoid blockking up equipment and cause the damage.

Preferably, still fixed being provided with magnetism on the outer wall of first liquid reserve tank with the second liquid reserve tank turns over the board level gauge first liquid reserve tank with the top of second liquid reserve tank is still fixed and is provided with discharge valve.

So set up, can with first liquid reserve tank with the air escape in the second liquid reserve tank avoids because of first liquid reserve tank with the too big incident of appearance of second liquid reserve tank internal pressure.

Preferably, the input end and the output end of the first metering pump and the second metering pump are both provided with a back pressure valve.

With this arrangement, the backflow of the medicine can be prevented, resulting in inaccurate measurement.

Preferably, the conveying assemblies are at least two groups, the mass flowmeter comprises a measuring part and a meter head, and the measuring part is electrically connected with the meter head.

So set up, can be simultaneously for the flotation agent of many places different ratios that provides, split type gauge outfit design can not receive the restriction of mounted position, the staff of being convenient for monitors.

The utility model has the advantages and positive effects that:

the utility model discloses a first measuring pump and second measuring pump carry out the ration extraction to different medicaments, still detect the medicament quantity once more through mass flow meter once more, can the mixed required different medicament's of accurate control flotation agent quantity to mix through the emulsification pump before dropping into flotation equipment, promoted the flotation effect, can reduce the manufacturing cost of enterprise.

2 the utility model discloses a hydraulic turbine has realized self-cleaning with the rack and pinion cooperation, and the combination of flushing pipe and brush makes the cleaning performance better, can replace artifical entering cleaning process, has improved the cleaning efficiency and has reduced the harm to the staff.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is an axial view of the overall structure of the present invention;

fig. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line I-I of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line II-II of FIG. 3;

fig. 5 is a schematic horizontal cross-sectional view taken along line iii-iii of fig. 4;

FIG. 6 is an enlarged view of the structure at A in FIG. 4;

fig. 7 is an enlarged view of the structure at B in fig. 5.

The reference numerals are explained below:

1. a support frame; 2. a first liquid storage tank; 3. a second liquid storage tank; 4. a first metering pump; 5. a second metering pump; 6. an emulsification pump; 7. a back pressure valve; 8. a pressure transmitter; 9. an electric ball valve; 10. an exhaust valve; 11. a pressure gauge; 12. a mass flow meter; 121. a measuring section; 122. a gauge head; 13. an access hole; 14. a liquid outlet; 15. a magnetic flap level gauge; 16. a liquid separating pipe; 17. a flush tube; 18. a brush; 19. a carriage; 20. a limiting groove; 21. a rack; 22. a counterweight groove; 23. a pulley; 24. a steel cord; 25. a water turbine; 26. a drive shaft; 27. a spiral tube; 28. a blow-off pipe; 29. a balancing weight; 30. a gear; 31. a filtering bin; 32. a filter tube; 33. the groove is driven.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further explained with reference to the accompanying drawings:

example 1

As shown in fig. 1-7, a high-precision flotation dosing machine with automatic cleaning function, including support frame 1, fixedly on support frame 1 be provided with first liquid reserve tank 2 and second liquid reserve tank 3, fixedly on first liquid reserve tank 2 and second liquid reserve tank 3 be provided with conveying assembly, conveying assembly is used for mixing and exporting the solution ration in first liquid reserve tank 2 and second liquid reserve tank 3, still be provided with electronic ball valve 9 and pressure transmitter 8 on first liquid reserve tank 2 and second liquid reserve tank 3, electronic ball valve 9 is used for controlling the switch-on and the disconnection of input pipeline, pressure transmitter 8 is used for controlling electronic ball valve 9, still be provided with automatic cleaning device in first liquid reserve tank 2 and second liquid reserve tank 3, automatic cleaning device is used for carrying out self-cleaning to first liquid reserve tank 2 and second liquid reserve tank 3 inside.

Specific as shown in fig. 2, the conveying assembly includes first measuring pump 4, second measuring pump 5 and emulsification pump 6, the input of first measuring pump 4 links to each other with first liquid reserve tank 2, the input of second measuring pump 5 links to each other with second liquid reserve tank 3, the input of emulsification pump 6 is all inserted to the output of first measuring pump 4 and second measuring pump 5, all be provided with manometer 11 and mass flowmeter 12 on the connecting pipeline of first measuring pump 4 and emulsification pump 6 and the connecting pipeline of second measuring pump 5 and emulsification pump 6, so set up the ratio that can the accurate control medicament, in order to improve the flotation effect of flotation agent.

Specifically, as shown in fig. 3, 4, 5, 6 and 7, the automatic cleaning device includes a sliding frame 19 fixedly disposed on a set of opposite inner walls of the first liquid storage tank 2 and the second liquid storage tank 3, a limiting groove 20, a driving groove 33 and a counterweight groove 22 are sequentially disposed on the sliding frame 19, a rack 21 is fixedly disposed in the driving groove 33, a liquid distribution pipe 16 is disposed between the two sliding frames 19, a spiral pipe 27 is further fixedly disposed on the liquid distribution pipe 16, the spiral pipe 27 is made of PU material, and a free end of the spiral pipe 27 penetrates through tops of the first liquid storage tank 2 and the second liquid storage tank 3, so that the washing water can be provided for the liquid distribution pipe 16, and the length change can be realized along with the movement of the liquid distribution pipe 16.

Divide the both ends of liquid pipe 16 to stretch into spacing groove 20 respectively, be provided with transmission shaft 26 at the rotation of dividing liquid pipe 16, the both ends of transmission shaft 26 are stretched out from dividing liquid pipe 16 both ends respectively, and fixed being provided with gear 30, gear 30 is located drive groove 33, and with rack 21 intermeshing, it is equipped with hydraulic turbine 25 to still fix the cover on transmission shaft 26, so set up the water that can utilize the washing box and provide power, realize belt cleaning device's automatic walking to reach the self-cleaning to in the box.

A pulley 23 is further rotatably arranged at the top of the sliding frame 19, a steel cable 24 is wound on the pulley 23, one end of the steel cable 24 is connected with the liquid distribution pipe 16, a counterweight 29 is fixedly arranged at the other end of the steel cable 24, and the counterweight 29 is slidably arranged in the counterweight groove 22, so that the liquid distribution pipe 16 can be automatically reset after the flushing is finished, and the reuse is facilitated.

Still communicate on dividing liquid pipe 16 and be provided with flushing pipe 17, fixedly on flushing pipe 17 be provided with brush 18, brush 18 slides with first liquid reserve tank 2 and second liquid reserve tank 3 inner wall and laminates, can make the cleaning performance better through the cooperation of brush 18.

Specifically, all be provided with filter bin 31 in first liquid reserve tank 2 and second liquid reserve tank 3, filter bin 31 and electric ball valve 9's output intercommunication, filter bin 31's fixed filter tube 32 that is provided with in bottom, still be provided with blow off pipe 28 on the outer wall of first liquid reserve tank 2 and second liquid reserve tank 3, blow off pipe 28's one end links to each other with filter bin 31, so set up and to filter the large granule impurity that will concentrate, avoid blocking up equipment and cause the damage.

Concretely, still fixed magnetic flap level gauge 15 that is provided with the model for UVMFTW-UNC3 FBMSDAA-900H on the outer wall of first liquid reserve tank 2 and second liquid reserve tank 3, turn over the liquid level gauge 15 through the magnetism and can monitor the liquid level in first liquid reserve tank 2 and the second liquid reserve tank 3, still fixed discharge valve 10 that is provided with at the top of first liquid reserve tank 2 and second liquid reserve tank 3, so set up and to discharge the air in first liquid reserve tank 2 and the second liquid reserve tank 3, avoid appearing the incident because of first liquid reserve tank 2 and the too big of second liquid reserve tank 3 internal pressure, all be provided with back pressure valve 7 at the input of first measuring pump 4 and second measuring pump 5 and output, so set up and to prevent the medicament refluence, lead to measuring the inaccuracy.

Wherein, the conveying component is two sets of at least, and mass flow meter 12 includes measuring part 121 and gauge outfit 122, and measuring part 121 is connected with gauge outfit 122 electricity, so set up the flotation agent that can provide different ratio for many places simultaneously, and the split type design of the mass flow meter of model K025-15F2 can not receive the restriction of mounted position, and the staff of being convenient for monitors equipment behavior.

The working process of the embodiment: when the device is used, different medicaments are correspondingly connected with the electric ball valves 9 on the first liquid storage tank 2 and the second liquid storage tank 3 at first, the medicaments are controlled to be added into the first liquid storage tank 2 and the second liquid storage tank 3 through the electric ball valves 9, the pressure transmitters 8 arranged on the first liquid storage tank 2 and the second liquid storage tank 3 can monitor the pressure in the first liquid storage tank 2 and the second liquid storage tank 3, the medicament conveying amount of the electric ball valves 9 into the first liquid storage tank 2 and the second liquid storage tank 3 is controlled through the detection of the pressure, the exhaust valves 10 are further arranged on the first liquid storage tank 2 and the second liquid storage tank 3 to exhaust the gas in the first liquid storage tank 2 and the second liquid storage tank 3, the magnetic turning plate liquid level meter 15 can visually display the medicament capacity in the first liquid storage tank 2 and the second liquid storage tank 3, so that a worker can check accidents, and the safety pressure rise caused by the fact that the medicaments enter the sealed first liquid storage tank 2 and the second liquid storage tank 3 is too high is avoided; then the output end of the emulsification pump 6 is connected with the flotation device, then the first metering pump 4 is used for quantitatively pumping out the medicament in the first liquid storage tank 2, meanwhile, the second metering pump 5 is used for quantitatively pumping out the medicament in the second liquid storage tank 3, the pumped medicament can be measured again through the measuring part 121 of the mass flow meter 12, and the measuring result is transmitted to the gauge head 122 so as to be checked by a worker, so that the accuracy of the medicament dosage can be ensured, then the medicaments pumped out by the first metering pump 4 and the second metering pump 5 can be sent into the emulsification pump 6, the emulsification pump 6 is mixed and emulsified and then sent into the flotation device for carrying out flotation on minerals, and because the first metering pump 4 and the second metering pump 5 are directly connected with the input end of the emulsification pump 6, the pressure gauge 11 is further installed on a pipeline between the first metering pump 4 and the second metering pump 5 and the input end of the emulsification pump 6, so as to ensure the safe operation of the device.

In this embodiment, back pressure valve 7 is all installed to input and the output at first measuring pump 4 and second measuring pump 5, can avoid the medicament backward flow in the pipeline to lead to measuring result error to appear, the rose box of 9 output installations of electric ball valve in first liquid reserve tank 2 and second liquid reserve tank 3 can filter the large granule impurity in the medicament, the filtering process is after the medicament flows into the rose box, because the rose pipe 32 has a take the altitude, the medicament can gather in the rose box, can follow the rose pipe 32 after the liquid level height of medicament surpasss the rose pipe 32 and flow into in first liquid reserve tank 2 and the second liquid reserve tank 3, and large granule impurity then can deposit in the rose box bottom because weight is great, can discharge the impurity in the rose box through blow off pipe 28 after using a period.

When different medicaments are replaced according to production requirements, the interiors of the first liquid storage tank 2 and the second liquid storage tank 3 need to be cleaned so as to prevent the medicaments from being mixed and influencing the using effect, a worker firstly opens the access hole 13 so as to observe during cleaning, connects a water pipe with the spiral pipes 27 on the first liquid storage tank 2 and the second liquid storage tank 3, then supplies water into the spiral pipes 27, the water flows into the liquid distribution pipe 16 after passing through the spiral pipes 27, enters the flushing pipe 17 through the liquid distribution pipe 16, cleans the inner walls of the first liquid storage tank 2 and the second liquid storage tank 3 by being sprayed out of the flushing pipe 17, simultaneously pushes the water turbine 25 to rotate in the process that the water flows into the flushing pipe 17 from the liquid distribution pipe 16, and drives the gear 30 to rotate after the water turbine 25 rotates, the liquid distributing pipe 16 can move downwards along the limiting groove 20 through the meshing of the gear 30 and the rack 21, the interior of the box body is cleaned through the matching of the washing pipe 17 and the brush 18, the cleaned sewage can be discharged through the liquid outlet 14, meanwhile, the balance weight 29 can be pulled upwards through the steel cable 24 when the liquid distributing pipe 16 moves downwards, the spiral pipe 27 can be extended along with the liquid distributing pipe 16 when the liquid distributing pipe 16 moves downwards, the water supply to the spiral pipe 27 is stopped after the liquid distributing pipe 16 moves to the lower limit position, at the moment, the gear 30 loses power, the balance weight 29 can move downwards along the balance weight groove 22, the liquid distributing pipe 16 is driven by the steel cable 24 to move upwards along the limiting groove 20, at the same time, the spiral pipe 27 is shortened, the liquid distributing pipe 16 is stopped after the balance weight 29 moves downwards to the extreme position, at the moment, and the liquid distributing pipe 16 resets so as to be cleaned next time.

Although an embodiment of the present invention has been described in detail, the description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention. The equivalent changes and improvements made according to the application scope of the present invention should be still included in the patent coverage of the present invention.

Claims (8)

1. The utility model provides a high accuracy flotation dosing machine with self-cleaning function, includes support frame (1), its characterized in that: support frame (1) is gone up fixed first liquid reserve tank (2) and second liquid reserve tank (3) first liquid reserve tank (2) with the fixed conveying subassembly that is provided with on second liquid reserve tank (3), conveying subassembly be used for with first liquid reserve tank (2) with solution ration in second liquid reserve tank (3) is mixed and is exported first liquid reserve tank (2) with still be provided with electric ball valve (9) and pressure transmitter (8) on second liquid reserve tank (3), electric ball valve (9) are used for controlling the switch-on and the disconnection of input pipeline, pressure transmitter (8) are used for right electric ball valve (9) control first liquid reserve tank (2) with still be provided with self-cleaning device in second liquid reserve tank (3), self-cleaning device is used for right first liquid reserve tank (2) with the inside self-cleaning that carries out of second liquid reserve tank (3).

2. The high-precision flotation dosing machine with the automatic cleaning function according to claim 1 is characterized in that: the conveying assembly comprises a first metering pump (4), a second metering pump (5) and an emulsifying pump (6), the input end of the first metering pump (4) is connected with a first liquid storage tank (2), the input end of the second metering pump (5) is connected with a second liquid storage tank (3), the first metering pump (4) is connected with the output end of the second metering pump (5) and is connected with the input end of the emulsifying pump (6), the first metering pump (4) is connected with the connecting pipeline of the emulsifying pump (6) and the second metering pump (5) is connected with the connecting pipeline of the emulsifying pump (6) and is provided with a pressure gauge (11) and a mass flow meter (12).

3. The high-precision flotation dosing machine with the automatic cleaning function according to claim 1 is characterized in that: the automatic cleaning device comprises a sliding frame (19) fixedly arranged on a group of opposite inner walls of the first liquid storage tank (2) and the second liquid storage tank (3), a limiting groove (20), a driving groove (33) and a counterweight groove (22) are sequentially arranged on the sliding frame (19), a rack (21) is fixedly arranged in the driving groove (33), a liquid distributing pipe (16) is arranged between the two sliding frames (19), two ends of the liquid distributing pipe (16) respectively extend into the limiting groove (20), a transmission shaft (26) is rotationally arranged in the liquid distributing pipe (16), two ends of the transmission shaft (26) respectively extend out from two ends of the liquid distributing pipe (16) and are fixedly provided with gears (30), the gears (30) are positioned in the driving groove (33) and are mutually meshed with the rack (21), a pulley (23) is fixedly arranged on the transmission shaft (26) in a fixed mode, a pulley (23) is further rotationally arranged at the top of the sliding frame (19), a steel cable (24) is wound on the pulley (23), one end of the steel cable (24) is connected with the counterweight block (24), and a water turbine (29) is arranged in the counterweight groove (29), still communicate on the liquid distribution pipe (16) and be provided with flushing pipe (17), fixed brush (18) that are provided with on flushing pipe (17), brush (18) with first liquid reserve tank (2) with second liquid reserve tank (3) inner wall slides and laminates.

4. The high-precision flotation dosing machine with the automatic cleaning function according to claim 3, is characterized in that: still fixedly on dividing liquid pipe (16) be provided with spiral pipe (27), spiral pipe (27) are the material, just the free end of spiral pipe (27) runs through first liquid reserve tank (2) with second liquid reserve tank (3) top.

5. The high-precision flotation reagent feeder with the automatic cleaning function according to claim 1, characterized in that: first liquid reserve tank (2) with all be provided with in second liquid reserve tank (3) and filter storehouse (31), filter storehouse (31) with the output intercommunication of electric ball valve (9) the fixed filter tube (32) that is provided with in bottom of filter storehouse (31) first liquid reserve tank (2) with still be provided with blow off pipe (28) on the outer wall of second liquid reserve tank (3), the one end of blow off pipe (28) with it links to each other to filter storehouse (31).

6. The high-precision flotation dosing machine with the automatic cleaning function according to claim 1 is characterized in that: the magnetic turning plate liquid level meter is characterized in that magnetic turning plate liquid level meters (15) are fixedly arranged on the outer walls of the first liquid storage tank (2) and the second liquid storage tank (3), and exhaust valves (10) are fixedly arranged at the tops of the first liquid storage tank (2) and the second liquid storage tank (3).

7. The high-precision flotation dosing machine with the automatic cleaning function according to claim 2 is characterized in that: and the input end and the output end of the first metering pump (4) and the second metering pump (5) are both provided with a backpressure valve (7).

8. The high-precision flotation reagent feeder with the automatic cleaning function according to claim 2, characterized in that: the conveying assemblies are at least two groups, the mass flowmeter (12) comprises a measuring part (121) and a meter head (122), and the measuring part (121) is electrically connected with the meter head (122).

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