CN210585396U

CN210585396U - Flotation pretreatment system

Info

Publication number: CN210585396U
Application number: CN201920870387.4U
Authority: CN
Inventors: 张翼
Original assignee: Wuhan Institute of Technology
Current assignee: Wuhan Institute of Technology
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-05-22
Anticipated expiration: 2029-06-11

Abstract

The utility model relates to a mineral processing technology field provides a flotation pretreatment system, including the confession ore unit that is used for providing the ore pulp and is used for providing the confession medicine unit of medicament, still include the multistage barrel of laying in proper order along vertical direction, each level the barrel all has and is used for mixing the ore pulp with the mixing unit of medicament and being used for the dispersion the mixing unit carries out the dispersion unit of dispersion, each to the ore pulp and the medicament after mixing the barrel mixing unit with the dispersion unit all arranges from top to bottom, and is located the below the barrel has the ore outlet that supplies ore pulp and medicament after the preliminary treatment to discharge. The utility model discloses a multistage barrel carries out the preliminary treatment to the ore pulp for the abundant mineralize mineralization of target mineral, dispersion and complete with the reaction of flotation reagent, can improve the flotation index.

Description

Flotation pretreatment system

Technical Field

The utility model relates to a mineral processing technology field specifically is a flotation pretreatment system.

Background

Along with the increase of the proportion of 'poor, fine and miscellaneous' refractory ores, the importance of improving the efficiency of the mineral processing equipment and the mineral processing technology is more prominent. Due to the properties of the mineral particles, such as material composition, surface properties, chemical elements and pulp rheology, they cannot be changed during the flotation process. Furthermore, if only the flotation machine is used for size mixing, a high rotation speed is often required, and with the increase of the size of the flotation equipment, the abrasion of the impeller stator is remarkably increased due to the increase of the rotation speed, and in addition, the adsorption of the chemical on the surface of the mineral and the desorption of the mineral on the surface of the air bubbles are caused due to the overhigh rotation speed of the impeller of the flotation machine. Therefore, the ore pulp pretreatment process and equipment are added before the flotation operation, so that the full mineralization and dispersion of target minerals and the complete reaction with flotation reagents are realized, and the method has important significance for improving the flotation index.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flotation pretreatment system carries out the preliminary treatment to the ore pulp through multistage barrel for the abundant mineralize mineralization of target mineral, dispersion and complete with the reaction of flotation reagent, can improve the flotation index.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the utility model provides a flotation pretreatment system, is including the confession ore cell that is used for providing the ore pulp and the confession medicine unit that is used for providing the medicament, still includes the multistage barrel that lays in proper order along vertical direction, each grade the barrel all has and is used for mixing the ore pulp with the mixing unit of medicament and being used for the dispersion the mixing unit carries out the dispersion unit that disperses ore pulp and medicament after mixing, each the barrel mix the unit with the dispersion unit all arranges from top to bottom, and is located the below the barrel has the ore discharge mouth that supplies ore pulp and medicament after the preliminary treatment.

Further, still including being used for atomizing the atomization component of medicament, each the mixing unit all including be used for with the ore pulp that supplies the ore deposit unit to provide with the stirring rake that the atomized medicament of atomization component mixes, the stirring rake is located rather than in the barrel that corresponds, and installs in the barrel outer wall and be used for ordering about the agitator motor of stirring rake.

Further, atomization component is all including locating each atomizer on the barrel, for atomizer provides the medicament pressurization structure of pressurization medicament and does atomizer provides pressurized air's air pressurization structure, medicament pressurization structure with air pressurization structure all through one minute multiple channel with the atomizer intercommunication, the quantity and the each of one minute multiple channel's branch passageway the same and the one-to-one of atomizer is prepared, the pressure release hole has been seted up to atomizer.

Further, the air pressurizing structure comprises an air inlet pipe, the air inlet pipe is provided with an air inlet, a first air inlet valve, a pressure regulating valve, an air filter, an air pressure gauge and an air flow meter are sequentially arranged along the flowing direction of air in the air inlet pipe, and an air outlet of the air inlet pipe is communicated with a main channel of one of the one-to-many pipelines; the medicament pressurization structure comprises a medicament inlet pipe, wherein a booster pump, a liquid pressure gauge, a liquid flow meter and an electric regulating valve are sequentially arranged in the direction of medicament flowing in the medicament inlet pipe, and a medicament outlet of the medicament inlet pipe is communicated with another main channel of the one-to-many pipeline.

Further, each dispersing unit comprises a dispersing sieve plate and a medium filling group which are arranged up and down, the dispersing sieve plate is positioned below the mixing unit in each stage of the cylinder, and the medium filling group is positioned above the mixing unit in the next cylinder; from top to bottom, the aperture of the dispersing sieve plate in each stage of the cylinder body is smaller than that of the dispersing sieve plate in the next stage of the cylinder body.

Further, the confession medicine unit includes medicine storage tank and is used for filtering the filtration of the medicament in the medicine storage tank, filtration with the mixing unit intercommunication.

Further, filtration includes two sets of parallelly connected filtering component, one of them set filtering component filters the valve including the first valve, first filter and the second that filter that set gradually, another set filtering component filters valve, second filter and fourth filter valve including the third that sets gradually, first filter valve with the third filter valve all with storage medicine tank intercommunication, two sets filtering component's output all with the mixed unit intercommunication.

Further, a heating device for heating the medicament is installed in the medicament storage tank.

Further, the confession ore unit is including advancing the ore deposit pipe, it is equipped with the sediment stuff pump that is used for pressing the ore pulp to the barrel of highest position on advancing the ore deposit pipe, advance the ore deposit mouth and the highest position of ore deposit pipe the import intercommunication of barrel.

Further, a reducing pipeline with the pipe diameter reduced from top to bottom is arranged at the ore outlet, and the upper portion of the reducing pipeline is communicated with the outlet of the barrel at the lowest position.

Compared with the prior art, the beneficial effects of the utility model are that: the ore pulp is pretreated by the multi-stage cylinder, so that the target minerals are fully mineralized and dispersed, the reaction with the flotation reagent is complete, and the flotation index can be improved.

Drawings

Fig. 1 is a schematic structural diagram of a flotation pretreatment system provided by an embodiment of the present invention;

in the reference symbols: 1. a medicine storage tank; 2. a medicament valve; 3. a first filter valve; 4. a first filter; 5. a second filter valve; 6. a third filter valve; 7. a second filter; 8. a fourth filter valve; 9. a booster pump; 10. an air inlet; 11. a first intake valve; 12. a pressure regulating valve; 13. a gas filter; 14. a gas pressure gauge; 15. a gas flow meter; 16. a one-to-many pipeline; 17. a liquid pressure gauge; 18. a liquid flow meter; 19. an electric control valve; 20. an ore outlet; 21. a slurry pump; 22. an ore inlet pipe; 23. an air inlet pipe; 24. a second intake valve; 25. an ore inlet; 26. a stirring paddle; 27. a stirring motor; 28. a showerhead cover plate; 29. an atomizing spray head; 30. a media pack; 31. dispersing sieve plates; 32. a pneumatic actuator; 33. a pressure relief vent; 34. a liquid PU tube; 35. a gas PU pipe; 36. and (4) a pressure relief pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a flotation pretreatment system, including an ore supply unit for providing ore slurry and a medicine supply unit for providing a medicine, in addition, the system further includes a plurality of stages of cylinders arranged in sequence along a vertical direction, each stage of the cylinder has a mixing unit for mixing the ore slurry and the medicine and a dispersing unit for dispersing the mixed ore slurry and medicine, the mixing unit and the dispersing unit of each cylinder are all arranged up and down, and the cylinder located at the bottom has an ore outlet 20 for discharging the pretreated ore slurry and medicine. In this embodiment, a plurality of stages of cylinders for mixing and dispersing, such as three stages shown in fig. 1, are provided, and the three stages are arranged from top to bottom in sequence, so that three stages of pretreatment can be performed, and of course, more stages of pretreatment can be provided according to actual needs. Wherein, what mix adopted is that the mixing unit goes on, what the dispersion adopted is that the dispersion unit goes on, and ore pulp and medicament mix through the mixing unit earlier, and then disperse the unit through the dispersion, so through multistage back, can guarantee complete preliminary treatment, discharge from ore outlet 20 at last, provide the purpose mineral that meets the requirements for subsequent flotation operation.

The following are specific examples:

in order to optimize the above scheme, please refer to fig. 1, the system further includes an atomization assembly for atomizing the reagent, each mixing unit includes a stirring paddle 26 for mixing the ore slurry provided by the ore supply unit with the reagent atomized by the atomization assembly, the stirring paddle 26 is disposed in the corresponding cylinder, and a stirring motor 27 for driving the stirring paddle 26 is disposed on an outer wall of the cylinder. In this embodiment, the atomization pretreatment is selected to enable the ore pulp and the chemical agent to be fully mixed, and the mixing mode is the stirring paddle 26, and the stirring paddle 26 can be controlled to perform stirring work through the driving of the stirring motor 27. Of course, other than the above, the mixing may be performed by other methods in the prior art, such as vibration mixing, which is not limited in this embodiment.

Further optimizing the above scheme, please refer to fig. 1, the atomizer assemblies each include an atomizer 29 disposed on each cylinder, a chemical pressurizing structure for providing pressurized chemical to the atomizer 29, and an air pressurizing structure for providing pressurized air to the atomizer 29, the chemical pressurizing structure and the air pressurizing structure are both communicated with the atomizer 29 through a one-to-many pipeline 16, the number of branch channels of the one-to-many pipeline 16 is the same as the number of the atomizers 29, and the atomizers are provided with pressure relief holes. In this embodiment, the above-mentioned atomizing assembly is optimized, and the atomizing assembly is composed of the atomizing nozzle 29, the chemical pressurizing structure and the air pressurizing structure, wherein the chemical pressurizing structure pressurizes the chemical and then delivers the pressurized chemical to each atomizing nozzle 29 through the one-to-many pipeline 16, and similarly, the air pressurizing structure pressurizes the air and then delivers the pressurized air to each atomizing nozzle 29 through the one-to-many pipeline 16, and the chemical is atomized under the processing of the atomizing nozzle 29 and then mixed with the ore slurry. The atomizer 29 is provided with a nozzle cover 28. In addition, the branch of the one-in-many pipeline 16 of the air pressurizing structure is the gas PU pipe 35, and the branch of the one-in-many pipeline 16 of the medicine pressurizing structure is the liquid PU pipe 34, but in addition to this, the structure of the atomizing assembly has many variations, and the purpose of obtaining the atomized medicine is the end, and the details are not described herein.

Further optimizing the above scheme, referring to fig. 1, the air pressurizing structure includes an air inlet pipe 23, the air inlet pipe 23 has an air inlet 10, a first air inlet valve 11, a pressure regulating valve 12, a gas filter 13, a gas pressure gauge 14 and a gas flow meter 15 are sequentially installed along the direction of air flow in the air inlet pipe 23, and an air outlet of the air inlet pipe 23 is communicated with a main channel of one of the one-to-many pipelines 16; the medicament pressurizing structure comprises a medicament inlet pipe, a booster pump 9, a liquid pressure gauge 17, a liquid flow meter 18 and an electric regulating valve 19 are sequentially arranged along the flowing direction of the medicament in the medicament inlet pipe, and a medicament outlet of the medicament inlet pipe is communicated with another general channel of the one-to-many pipeline 16. In this embodiment, the air pressurization structure performs pressure regulation through the pressure regulating valve 12, impurities in the air can be filtered through the gas filter 13 so as not to affect the subsequent pretreatment process, the first air inlet valve 11 arranged therein can control whether air is introduced, and the gas pressure gauge 14 and the gas flow meter 15 can monitor the air. The medicament pressurizing structure pressurizes the medicament by the pressurizing pump 9, wherein the liquid pressure gauge 17 and the liquid flow meter 18 can monitor the liquid, and the electric regulating valve 19 can regulate the medicament to enter the cylinder. By adjusting the pressure regulating valve 12, the electric control valve 19 and the frequency converter of the booster pump 9, the flow rate and pressure of the gas entering the atomizer 29, and the flow rate and pressure of the liquid can be controlled so that the pressure of the gas is slightly greater than the pressure of the liquid, and the flow rate ratio of the gas to the liquid is 10: 1-200: 1, the atomization effect is optimal.

As an optimization scheme of the embodiment of the present invention, please refer to fig. 1, each of the dispersing units includes a dispersing sieve plate 31 and a medium filling group 30, which are arranged up and down, the dispersing sieve plate 31 is located below the mixing unit in each stage of the cylinder, and the medium filling group 30 is located above the mixing unit in the next cylinder; from top to bottom, the aperture of the dispersing sieve plate 31 in each stage of the cylinder body is smaller than that of the dispersing sieve plate 31 in the next stage of the cylinder body. In this embodiment, the slurry and the chemical agent are mixed by the mixing unit and then enter the dispersing screen plate 31 and the medium filling group 30 for dispersing, wherein the medium filling group 30 includes four stacked medium filling units, and each adjacent medium filling unit is coaxially installed at a certain rotation angle and is located inside the cylinder. And because the aperture of the sieve plate is gradually increased, the ore pulp and the medicament can be conveniently discharged. Preferably, a pneumatic actuator 32 is provided for control, which is provided on the outer wall of the barrel.

As an optimization scheme of the embodiment of the present invention, please refer to fig. 1, the medicine supply unit includes a medicine storage tank 1 and a filtering structure for filtering the medicine in the medicine storage tank 1, and the filtering structure is communicated with the mixing unit. In this embodiment, the medicament may be filtered in advance by the filtering structure, and then may be introduced into the mixing unit after a series of processes by the above-mentioned booster pump 9 and the like. Preferably, the filtering structure comprises two sets of filters connected in parallel, wherein one set of filters comprises a first filtering valve 3, a first filter 4 and a second filtering valve 5 which are sequentially arranged, and the other set of filters comprises a third filtering valve 6, a second filter 7 and a fourth filtering valve 8. The filtering structure and the medicine storage tank 1 are controlled by a medicine valve 2.

In order to further optimize the above scheme, referring to fig. 1, a heating device for heating the medicament is installed in the medicament storage tank 1. In this embodiment, the heating device may heat the medicament in the medicament storage tank 1 in advance, preferably, the medicament is heated to 50 ℃ before entering the subsequent pretreatment process. Many heating devices are known in the art, such as heating wires, etc., and will not be described in detail herein.

As an optimization scheme of the embodiment of the present invention, please refer to fig. 1, the ore supply unit includes an ore inlet pipe 22, the ore inlet pipe 22 is provided with a slurry pump 21 for pressing the slurry into the cylinder at the highest position, and an ore inlet 25 of the ore inlet pipe 22 is communicated with the inlet of the cylinder at the highest position. In this embodiment, the ore supply unit supplies the ore slurry to the ore supply unit by using the ore inlet pipe 22, and the ore slurry is pressurized and conveyed by the slurry pump 21 because the ore slurry needs to be conveyed into the cylinder at the highest layer.

As an optimization scheme of the embodiment of the present invention, please refer to fig. 1, a reducing pipeline with a reduced pipe diameter from top to bottom is arranged at the mine outlet 20, and the upper portion of the reducing pipeline is communicated with the outlet of the barrel at the lowest position. In the present embodiment, the discharge speed can be accelerated by providing the variable diameter pipe.

As an optimization scheme of the embodiment of the present invention, please refer to fig. 1, an air inlet pipe 23 is arranged at an inlet of the cylinder at the highest position, and a second air inlet valve 24 is arranged at the same time, so that air can be supplemented to the cylinder from the air inlet pipe 23, and the second air inlet valve 24 is arranged to control the amount of air entering.

As an optimized scheme of the embodiment of the present invention, please refer to fig. 1, a pressure relief pipe 36 is further led out from each stage of the cylinder body to match the pressure relief hole 33.

The use method of the system comprises the following steps: before starting the system, all valves need to be closed, the heating device is opened to heat the medicament, and the temperature of the medicament is guaranteed to reach 50 ℃. Then, one set of the filter is opened to filter the medicament, and then the medicament enters a monitoring part to be monitored and is pressurized and conveyed into the barrel by the booster pump 9. Then, opening a gas valve, leading compressed air to enter a detection control part through a gas pipe inlet, sequentially passing through a pressure regulating valve 12, a gas filter 13, a gas pressure gauge 14 and a gas flowmeter 15 in the gas detection part, leading the compressed air to enter a multi-branch pipeline 16 after detection and flowing out, and then leading the compressed air to enter the other side of the atomizing nozzle 29 through a multi-gas PU pipe 35; and adjusting the pressure regulating valve 12, the electric regulating valve 19 and the frequency converter of the booster pump 9, and controlling the flow rate and pressure of the gas entering the atomizing nozzle 29 and the flow rate and pressure of the liquid to make the pressure of the gas slightly larger than the pressure of the liquid, wherein the flow rate ratio of the gas to the liquid is 50: 1, the atomization effect is optimal; sequentially starting the stirring motor 27 and the pneumatic actuator 32; starting a mortar pump, enabling the ore pulp to enter the ore inlet 25 through the ore inlet pipe 22, mixing the ore pulp with the medicament atomized by the atomizing nozzle 29 after stirring the ore pulp when the ore pulp passes through the cylinder, performing dispersion mixing through the dispersion sieve plate 31 and the medium filling group 30, sequentially passing through a plurality of sections of cylinder parts in this way, and finally performing outflow through the ore outlet 20 to finish flotation pretreatment; during cleaning, the third filtering valve 6 and the fourth filtering valve 8 are opened, the first filtering valve 3 and the first filter 4 are closed, the screen mesh in the first filter 4 is disassembled for cleaning, and the cleaning operation is completed after the cleaning operation is finished.

As the embodiment of the utility model provides an optimization scheme, the connection between each part adopts flange joint. The multistage cylinder is formed by connecting the ends of the cylinders, and steel rings are arranged on the inner wall of the cylinder.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A flotation pretreatment system including a feed unit for providing a slurry and a feed unit for providing a medicament, characterized by: still include the multistage barrel of laying in proper order along vertical direction, each grade the barrel all has and is used for mixing the ore pulp with the mixing unit of medicament and being used for the dispersion the mixing unit carries out the dispersion unit that disperses the ore pulp and the medicament after mixing, each the barrel mix the unit with the dispersion unit all arranges from top to bottom, and is located the below the barrel has the ore pulp and the medicament exhaust ore outlet after supplying the preliminary treatment.

2. A flotation pretreatment system as recited in claim 1 wherein: still including being used for atomizing the atomization component of medicament, each the mixing unit all including be used for with the ore pulp that supplies the ore deposit unit to provide with the stirring rake that the atomized medicament of atomization component mixes, the stirring rake is located rather than in the barrel that corresponds, and has installed in the barrel outer wall and be used for ordering about the agitator motor of stirring rake.

3. A flotation pretreatment system as recited in claim 2 wherein: atomization component all is including locating each atomizer on the barrel, for atomizer provides the medicament pressurization structure of pressurization medicament and does atomizer provides pressurized air's air pressurization structure, medicament pressurization structure with air pressurization structure all through one minute multiple tube way with atomizer intercommunication, the quantity of the branch passageway of one minute multiple tube way and each atomizer's quantity is the same and the one-to-one is prepared, atomizer has seted up the pressure release hole.

4. A flotation pretreatment system as recited in claim 3 wherein: the air pressurizing structure comprises an air inlet pipe, the air inlet pipe is provided with an air inlet, a first air inlet valve, a pressure regulating valve, an air filter, an air pressure gauge and an air flow meter are sequentially arranged along the air flowing direction in the air inlet pipe, and an air outlet of the air inlet pipe is communicated with a main channel of one of the one-to-many pipelines; the medicament pressurization structure comprises a medicament inlet pipe, wherein a booster pump, a liquid pressure gauge, a liquid flow meter and an electric regulating valve are sequentially arranged in the direction of medicament flowing in the medicament inlet pipe, and a medicament outlet of the medicament inlet pipe is communicated with another main channel of the one-to-many pipeline.

5. A flotation pretreatment system as recited in claim 1 wherein: each dispersing unit comprises a dispersing sieve plate and a medium filling group which are arranged up and down, the dispersing sieve plate is positioned below the mixing unit in each stage of cylinder, and the medium filling group is positioned above the mixing unit in the next cylinder; from top to bottom, the aperture of the dispersing sieve plate in each stage of the cylinder body is smaller than that of the dispersing sieve plate in the next stage of the cylinder body.

6. A flotation pretreatment system as recited in claim 1 wherein: the confession medicine unit includes medicine storage tank and is used for filtering the filtration of the medicament in the medicine storage tank, filtration with the mixing unit intercommunication.

7. A flotation pretreatment system as recited in claim 6 wherein: the filtration includes two sets of parallelly connected filtering component, and one set of wherein filtering component filters the valve including the first valve, first filter and the second that filter that set gradually, another set of filtering component filters valve, second filter and fourth filter valve including the third that sets gradually, first filter valve with the third filter valve all with storage tank intercommunication, two sets of filtering component's output all with the mixing unit intercommunication.

8. A flotation pretreatment system as recited in claim 6 wherein: and a heating device for heating the medicament is arranged in the medicament storage tank.

9. A flotation pretreatment system as recited in claim 1 wherein: the confession ore deposit unit is including advancing the ore deposit pipe, it is equipped with the sediment stuff pump that is used for pressing the ore pulp to the barrel of highest position on advancing the ore deposit pipe, advance the ore deposit mouth and the highest position of ore deposit pipe the import intercommunication of barrel.

10. A flotation pretreatment system as recited in claim 1 wherein: and the ore outlet is provided with a reducing pipeline with the pipe diameter reduced from top to bottom, and the upper part of the reducing pipeline is communicated with the outlet of the barrel at the lowest position.