Preparation equipment and application process of flotation regulator for high-dolomite fluorite mine

Abstract

The invention relates to the technical field of preparation of flotation regulators, in particular to preparation equipment and an application process of a flotation regulator for high-dolomite fluorite mine, the preparation equipment is used for preparing a regulator prepared from phosphoric acid, carboxymethyl cellulose, sodium sulfate and sodium alkyl hydroxamic acid, the preparation equipment comprises a barrel, and the barrel is used for diluting the phosphoric acid and mixing other diluted materials; a discharging valve pipe is installed at the bottom end of the barrel, a plurality of supports are fixed to the bottom face of the barrel, a barrel cover is connected to the upper portion of the barrel through a first bolt, a material storage frame is arranged between the barrel and the barrel cover, a material collecting groove is formed in the material storage frame, and two partition plates are fixed to the inner wall of the material collecting groove. The preparation equipment and the application process of the flotation regulator for the high dolomite fluorite mine have the beneficial effects that automatic dilution and mixing of materials are realized by designing the structures such as the storage rack, the corresponding feeding port and the insertion pipe. In the preparation process, the diluted material can be injected into the barrel without frequently opening the feeding port, so that the preparation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of flotation adjusting agent preparation, in particular to a preparation device for a high-dolomite fluorite ore flotation adjusting agent and an application process thereof. Background Art

[0002] Fluorite, also known as fluorspar, is mainly composed of CaF2 and is currently the main source of industrial fluorine. The application areas of fluorine cover new energy, new materials, national defense, optoelectronics, metallurgy, chemical industry and other industries, and it plays an irreplaceable role. Therefore, fluorite is recognized as a strategic mineral resource both at home and abroad. my country has abundant reserves of fluorite resources, but most of them are associated minerals, and there are few single deposits.

[0003] In the prior art, in nature, fluorite often coexists closely with other calcium-containing minerals, such as dolomite, calcite, scheelite and apatite, etc. At present, the industry mainly uses flotation to separate and recover fluorite from the above ores. Since the main principle of flotation is to use the differences in surface properties of different minerals for sorting, the target minerals and gangue minerals are finally obtained respectively, and fluorite and dolomite are both semi-soluble salt minerals and have similar calcium ion active sites on the surface, so that the soluble components on the mineral surface can be converted into each other, and the surface physical and chemical properties of different minerals are highly similar, which ultimately leads to the flotation separation effect of fluorite being very unsatisfactory.

[0004] When flotation separation of fluorite and dolomite is performed, the separation purpose is achieved mainly by adding fatty acid collectors represented by sodium oleate and inhibitors represented by water glass and modified water glass under the condition of soda ash or sulfuric acid as an adjusting agent. For example, "A flotation separation method of fluorite and dolomite under acidic conditions" (application number CN201310697971.1) uses sulfuric acid as a pH adjusting agent for flotation, and "A preparation method and application of a dolomite inhibitor" (application number CN201310697982.X) uses soda ash as a pH adjusting agent for flotation. Since the floatability of dolomite and fluorite is very similar and dolomite has a low hardness and is very easy to become muddy, when soda ash is used as an adjusting agent, all calcium ions will be activated, resulting in poor selectivity for fluorite, making it difficult to obtain ideal flotation indicators, and the amount used is large and pollutes the environment. In addition, the strongly alkaline slurry also seriously affects the sedimentation effect and recycling of the return water. When sulfuric acid is used as a pH adjuster, sulfate ions will be introduced, causing the sulfur content in the concentrate to exceed the standard.

[0005] If phosphoric acid is used to adjust the pH value of the pulp, carboxymethyl cellulose and sodium sulfate are used for dispersion, and sodium alkyl hydroxamate is used to inhibit the gangue minerals, it is used in the flotation process of high-dolomite fluorite ore. By dispersing dolomite and highly selectively inhibiting it, the floatability difference between fluorite and dolomite is increased, showing a good flotation effect, and reducing the loss of fluorite during the flotation process, solving the current problem that high-dolomite fluorite is difficult to process and utilize. However, when preparing the flotation adjuster prepared from phosphoric acid, carboxymethyl cellulose, sodium sulfate, and sodium alkyl hydroxamate, it is necessary to use multiple devices to dilute phosphoric acid, carboxymethyl cellulose, sodium sulfate, and sodium alkyl hydroxamate respectively, and then add and mix them one by one, that is, it is necessary to open the cover of the mixing equipment for multiple times to add materials, which affects production efficiency. Summary of the invention

[0006] The object of the present invention is to provide a preparation device for a flotation regulator for high-dolomite fluorite ore and an application process thereof, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a preparation device for a flotation regulator of high dolomite fluorite ore, which is used to prepare a regulator prepared from phosphoric acid, carboxymethyl cellulose, sodium sulfate and sodium alkyl hydroxamate, comprising a cylinder body, which is used to dilute phosphoric acid and mix the remaining diluted materials, a discharge valve tube is installed at the bottom end of the cylinder body, a plurality of supports are fixed to the bottom surface of the cylinder body, a cylinder cover is connected to the top of the cylinder body by bolts, a storage rack is provided between the cylinder body and the cylinder cover, a collection trough is provided inside the storage rack, two partitions are fixed to the inner wall of the collection trough, and the inside of the collection trough is divided into two equal areas, the two equal areas are used to dilute carboxymethyl cellulose and sodium alkyl hydroxamate respectively, and two feeding ports are provided on the top surface of the cylinder cover, A plug-in tube is plugged into the top plate of the material storage rack, and the plug-in tube is plugged into the feeding port 1. A screw ring is fixed on the top surface of the cylinder cover, and a sealing cover is sleeved and screwed on the top of the screw ring. A stirrer 1 is installed on the top plate of the sealing cover, and an electromagnetic discharge valve tube 1 is installed at the bottom end of the material storage rack. A stirring vertical plate is rotatably connected to the bottom of the cylinder cover for diluting sodium sulfate. A stirrer 2 is installed inside the stirring vertical plate, and an electromagnetic discharge valve tube 2 is plugged and fixed to the bottom end of the stirring vertical plate. A material guide pipe is plugged and fixed to the top of the stirring vertical plate, and an axe-type stirring plate is fixed to the bottom end of the stirring vertical plate. A stirring horizontal plate is fixed on both sides of the stirring vertical plate, and a storage groove is provided on the surface of the stirring horizontal plate. An extension plate is rotatably connected to the inside of the storage groove, and a reserved opening is provided on the surface of the extension plate, and a knife plate is fixed inside the reserved opening.

[0008] Preferably, a plurality of bolt holes are provided on the top plate of the cylinder, the bottom plate of the cylinder cover and the bottom plate of the storage rack, plug tubes are inserted and fixed in the bolt holes on the surface of the storage rack, the storage rack is a "convex" shaped circular ring rack, the height of the plug tube is greater than the thickness of the bottom plate of the storage rack, the two ends of the plug tube are respectively inserted in the bolt holes on the top plate of the cylinder and the bottom plate surface of the cylinder cover, a bolt 1 is inserted inside the plug tube, and rubber rings are fixed on the top and bottom ends of the inner ring surface of the plug tube, the rubber ring is clamped between the screw rod of the bolt 1 and the plug tube to produce elastic deformation.

[0009] Preferably, an embedding groove is provided on the top surface of the bottom plate of the storage rack and the bottom surface of the bottom plate of the storage rack. The embedding groove is an annular groove. A sealing gasket is fixed inside the embedding groove. The sealing gasket is an annular plate structure. The thickness of the sealing gasket is greater than the height of the embedding groove. Once the bolts are tightened, the bottom plate of the cylinder cover and the top plate of the cylinder body clamp the bottom plate of the storage rack, and the sealing gasket is compressed to produce elastic deformation.

[0010] Preferably, the aggregate trough is in the form of an annular groove, the partition is fixed between the inner ring surface of the aggregate trough and the outer ring surface of the aggregate trough, the top surface of the insert tube is provided with a side groove, the side groove is a circular ring groove, a sealing ring is fixed inside the side groove, the outer ring surface of the sealing ring is larger than the outer ring surface of the insert tube, and after the insert tube is inserted into the feeding port 1, the sealing ring is squeezed between the feeding port 1 and the insert tube to produce elastic deformation.

[0011] Preferably, the outer ring surface of the threaded ring is provided with an external thread, the inner ring surface of the cover is provided with an internal thread, the external thread and the internal thread are matched and connected, a plurality of handles are fixed to the outer ring surface of the cover, a card slot is provided on the bottom surface of the cover, the card slot is an annular groove with a circular arc-shaped fracture, an introduction ring is inserted below the card slot, the bottom end of the introduction ring is fixed to the top surface of the cylinder cover, a rubber ferrule is fixed on the top end of the introduction ring, the rubber ferrule is an annular structure with a circular cross section, the circular surface diameter of the rubber ferrule is larger than the slot width of the card slot, the agitator includes a motor and a transmission shaft connected to the power output end of the motor, and two blades are fixed on the rod body of the transmission shaft.

[0012] Preferably, a feeding hopper is plugged and fixed on the top plate of the cylinder cover, a sealing cover is sleeved on the top of the feeding hopper, a servo motor is fixed on the top plate of the cylinder cover, the rotating shaft of the servo motor passes through the top plate of the cylinder cover, and the bottom end of the rotating shaft of the servo motor is connected to the connecting shaft through a coupling, the stirring vertical plate is a "Z"-shaped frame with a hollow interior, the middle part of the stirring vertical plate is a cylindrical structure, a feeding hopper is fixed on the top of the material guide tube, and a sealing cover is screwed on the top of the feeding hopper.

[0013] Preferably, the agitator 2 includes a motor 2 and a transmission shaft 2 which is transmission-connected to the power output end of the motor 2, and two blades 2 are fixed on the shaft body of the transmission shaft 2. The two blades 2 rotate along with the transmission shaft 2 in the middle cylindrical structure of the stirring plate.

[0014] Preferably, the stirring cross plates are provided with two groups, and the two stirring cross plates are symmetrically distributed about the connecting axis, and each group of stirring cross plates is provided with multiple stirring cross plates, and the multiple stirring cross plates are arranged and distributed at equal distances and in equal sizes along the rod body of the connecting axis. The storage groove is an arc-shaped groove, and the extension plate is a square plate. Both ends of the extension plate are provided with arc surfaces, and rubber clips are fixed on the arc surfaces. After the extension plate is received in the storage groove, the rubber clips are clamped between the extension plate and the storage groove to produce elastic deformation. The surface of the extension plate is provided with a through hole, and a limiting shaft is inserted inside the through hole. The two ends of the limiting shaft are respectively fixed on two parallel side walls of the storage groove. Four through holes are provided on the surfaces of the stirring cross plate and the extension plate, and the two groups of through holes are penetrated by bolts to limit the extension plate.

[0015] Preferably, the reserved opening is a square groove, two of which are symmetrically distributed about the perforation, and after the extension plate is rotated ninety degrees in the storage groove, the two reserved openings are both located on the outside of the storage groove, and the knife plate is a diamond-shaped column, and multiple knife plates are provided, and the multiple knife plates are arranged and distributed at equal distances and sizes along the long side of the reserved opening.

[0016] An application process of a preparation device for a high-dolomite fluorite ore flotation regulator, the process comprising the following steps:

[0017] Step 1: prepare the following raw materials by weight: 5-20 parts of phosphoric acid, 10-50 parts of carboxymethyl cellulose, 10-30 parts of sodium sulfate, and 5-10 parts of sodium alkyl hydroxamate;

[0018] Step 2: Weigh phosphoric acid, carboxymethyl cellulose, sodium sulfate, and sodium alkyl hydroxamate in the above proportions, place the phosphoric acid in the cylinder through the first feeding hopper, add water, stir, and dilute to 10%; place carboxymethyl cellulose and sodium alkyl hydroxamate in two equal areas in the collecting tank, add water, stir, and dilute to 10%; place sodium sulfate in the stirring vertical plate through the second feeding hopper, add water, stir, and dilute to 10%;

[0019] Step 3: Slowly pour the diluted sodium sulfate into the diluted phosphoric acid in step 1, and stir after pouring for 10 minutes;

[0020] Step 4: pour the diluted carboxymethyl cellulose and sodium alkyl hydroxamate in step 1 into the mixed liquid stirred in step 3 in sequence, and stir after pouring for 30 minutes; the prepared high-dolomite fluorite ore flotation regulator increases the floatability difference between fluorite and dolomite, shows a good flotation effect, and reduces the loss of fluorite during the flotation process, solving the problem that the current high-dolomite fluorite is difficult to be processed and utilized.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The preparation equipment and application process of the flotation adjuster for high dolomite fluorite ore proposed in the present invention realize automatic dilution and mixing of materials by designing a storage rack and corresponding feeding ports, cannulas and other structures. During the preparation process, the diluted material can be injected into the cylinder without frequently opening the feeding port, which greatly improves the preparation efficiency. The use of structures such as a stirring vertical plate, an axe-type stirring plate, a stirring horizontal plate, and a rotatable extension plate and knife plate increases the stirring radiation area and improves the stirring effect. Especially when mixing powdered materials, the design of the extension plate and the knife plate can break up the agglomerated materials, further improving the uniformity of material mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a top view of the structure of the present invention;

[0025] Figure 3 for Figure 2 Structural cross-section view at AA in the middle;

[0026] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0027] Figure 5 for Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0028] Figure 6 for Figure 3 A magnified schematic diagram of the structure at C in the middle;

[0029] Figure 7 for Figure 3 A magnified schematic diagram of the structure at D in the middle;

[0030] Figure 8 for Figure 2 Structural cross-section view at the middle BB;

[0031] Fig. 9 This is a schematic diagram of the material storage rack structure of the present invention;

[0032] Fig.10 This is a schematic diagram of the connection structure of the stirring vertical plate and the stirring horizontal plate of the present invention;

[0033] Fig.11 for Fig.10 Front view of the middle structure;

[0034] Fig.12 for Fig.11 Structural cross-section view at CC;

[0035] Fig.13 for Fig.12The enlarged schematic diagram of the structure at E in the middle;

[0036] Fig.14 It is a schematic diagram of the extension plate structure of the present invention;

[0037] Fig.15 This is a schematic diagram of the cylinder cover structure of the present invention;

[0038] Fig.16 It is a schematic diagram of the connection structure of the cover and the agitator of the present invention.

[0039] In the figure: cylinder 1, support 2, cylinder cover 3, storage rack 4, bolt hole 5, plug tube 6, rubber ring 7, bolt one 8, embedded groove 9, sealing gasket 10, collecting trough 11, partition 12, feeding port one 13, insert tube 14, side groove 15, sealing ring 16, screw ring 17, cover 18, card slot 19, introduction ring 20, rubber ferrule 21, stirrer one 22, electromagnetic discharge valve tube one 23, feeding hopper one 24, servo motor 25, connecting shaft 26, stirring vertical plate 27, stirrer two 28, electromagnetic discharge valve tube two 29, material guide pipe 30, feeding hopper two 31, axe stirring plate 32, stirring horizontal plate 33, storage groove 34, limit shaft 35, through hole 36, extension plate 37, rubber clip 38, reserved opening 39, knife plate 40, through hole 41, bolt two 42. DETAILED DESCRIPTION

[0040] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] For example, see Figures 1 to 16The present invention provides a technical solution: a preparation device for a flotation regulator of high dolomite fluorite ore, which is used to prepare a regulator prepared from phosphoric acid, carboxymethyl cellulose, sodium sulfate, and sodium alkyl hydroxamate, comprising a cylinder 1 for diluting phosphoric acid and mixing the remaining diluted materials, a discharge valve tube is installed at the bottom end of the cylinder 1, a plurality of supports 2 are fixed to the bottom surface of the cylinder 1, a cylinder cover 3 is connected to the top of the cylinder 1 by bolts 8, a storage rack 4 is provided between the cylinder 1 and the cylinder cover 3, a collection trough 11 is provided inside the storage rack 4, two partitions 12 are fixed to the inner wall of the collection trough 11, and the interior of the collection trough 11 is divided into two equal areas, and the two equal areas are respectively used to dilute carboxymethyl cellulose and sodium alkyl hydroxamate; a plurality of bolt holes 5 are provided on the top plate of the cylinder 1, the bottom plate of the cylinder cover 3, and the bottom plate of the storage rack 4, and the storage rack 4 has a plurality of bolt holes 5 on its surface. A plug tube 6 is inserted and fixed in the bolt hole 5 on the surface. The storage rack 4 is a "convex" shaped circular ring rack. The height of the plug tube 6 is greater than the thickness of the bottom plate of the storage rack 4. The two ends of the plug tube 6 are respectively inserted into the bolt holes 5 on the top plate of the cylinder body 1 and the bottom plate surface of the cylinder cover 3. A bolt 8 is inserted inside the plug tube 6, and the top and bottom ends of the inner ring surface of the plug tube 6 are fixed. The rubber ring 7 is clamped between the screw rod of the bolt 8 and the plug tube 6 to produce elastic deformation; an embedding groove 9 is provided on the top surface of the bottom plate of the storage rack 4 and the bottom surface of the bottom plate of the storage rack 4. The embedding groove 9 is an annular groove. A sealing gasket 10 is fixed inside the embedding groove 9. The sealing gasket 10 is an annular plate structure. The thickness of the sealing gasket 10 is greater than the height of the embedding groove 9. After the bolt 8 is locked, the bottom plate of the cylinder cover 3 and the top plate of the cylinder body 1 clamp the bottom plate of the storage rack 4. At this time, the sealing gasket 10 is compressed and produces elastic deformation.

[0042] When in use, the material storage rack 4 not only serves as a material storage structure, but also serves as a connecting structure when the cylinder body 1 and the cylinder cover 3 are connected; it should be noted that the material storage rack 4 is an optional structure and can be installed according to actual needs. If the material storage rack 4 is not installed, the top plate of the cylinder body 1 and the bottom plate of the cylinder cover 3 can be fixed together by bolts 8; if the material storage rack 4 is installed, the material storage rack 4 is overlapped on the top plate of the cylinder body 1, at this time, the bottom end of the plug tube 6 is inserted into the bolt hole 5 of the top plate of the cylinder body 1, and then The feeding port 13 on the surface of the cylinder cover 3 is aligned with the lower rear end of the insertion tube 14, the bolt hole 5 on the bottom plate of the cylinder cover 3 is sleeved on the top of the plug tube 6, and then the screw of the bolt 8 is passed through the bolt hole 5 set on the surface of the top plate of the cylinder body 1, the bottom plate of the cylinder cover 3 and the bottom plate of the storage rack 4, and then the nut is sleeved on the screw and screwed and locked. At this time, the sealing gasket 10 is clamped to produce elastic deformation, which not only improves the sealing effect after the cylinder body 1 and the cylinder cover 3 are connected, but also realizes the elastic gasket effect after the bolt 8 is tightened.

[0043] Two feeding ports 13 are provided on the top surface of the cylinder cover 3, and a plug 14 is inserted on the top plate of the storage rack 4. The plug 14 is inserted in the feeding port 13. The collecting trough 11 is an annular groove. The partition 12 is fixed between the inner ring surface of the collecting trough 11 and the outer ring surface of the collecting trough 11. A side groove 15 is provided on the top surface of the plug 14. The side groove 15 is a circular ring groove. A sealing ring 16 is fixed inside the side groove 15. The outer ring surface of the sealing ring 16 is larger than the outer ring surface of the plug 14. After the plug 14 is inserted into the feeding port 13, the sealing ring 16 is squeezed between the feeding port 13 and the plug 14 to produce elastic deformation; a screw ring 17 is fixed on the top surface of the cylinder cover 3, and a sealing cover 18 is sleeved and screwed on the top of the screw ring 17. A stirrer 22 is installed on the top plate of the sealing cover 18. An electromagnetic discharge valve tube 23 is installed at the bottom end of 4, an outer ring surface of the screw ring 17 is provided with an external thread, and an inner ring surface of the cover 18 is provided with an internal thread, the external thread and the internal thread are matched and connected, a plurality of handles are fixed on the outer ring surface of the cover 18, a card slot 19 is provided on the bottom surface of the cover 18, and the card slot 19 is an annular groove with a circular arc fracture, and an introduction ring 20 is inserted below the card slot 19, the bottom end of the introduction ring 20 is fixed to the top surface of the cylinder cover 3, and a rubber card sleeve 21 is fixed on the top end of the introduction ring 20, and the rubber card sleeve 21 is an annular structure with a circular cross section, and the circular surface diameter of the rubber card sleeve 21 is larger than the notch width of the card slot 19, and the agitator 22 includes a motor and a transmission shaft 1 connected to the power output end of the motor, and two blades 1 are fixed on the rod body of the transmission shaft.

[0044] When in use, carboxymethyl cellulose and sodium alkyl hydroxamate are respectively put into two equal areas separated by the partition 12 inside the collecting tank 11 from two feeding ports 13, and clean water is added to the two areas respectively to dilute the liquid; then the cover 18 is sleeved and screwed on the screw ring 17 to achieve the blocking of the feeding port 13, and as the cover 18 is lowered until the top plate of the cover 18 overlaps the top surface of the screw ring 17, the introduction ring 20 and the rubber ferrule 21 are inserted into the card groove 19, so as to achieve the traction limit of the cover 18, and the rubber ferrule 21 is squeezed and deformed by the cover 18 and then rebounds, so as to achieve the screw ring 17 and The elastic gasket after the cover 18 is screwed acts; and at this time, the bottom end of the agitator 22 extends into the aggregate trough 11, triggering the switch of the agitator 22, which can mix and dilute the clean water and the materials stored in the aggregate trough 11. When the storage rack 4 is not installed between the cylinder 1 and the cylinder cover 3, the agitator 22 is not configured on the optional cover 18, and the switch of the electromagnetic unloading valve pipe 23 is triggered to inject the diluted materials in the aggregate trough 11 into the cylinder 1, that is, in the process of mixing the materials inside the cylinder 1, there is no need to open the feeding port 13, and the feeding into the cylinder 1 can be realized, thereby improving the preparation efficiency of the flotation adjuster for high dolomite fluorite ore.

[0045] A stirring plate 27 is rotatably connected to the bottom of the cylinder cover 3 for diluting sodium sulfate. A feeding hopper 24 is plugged and fixed on the top plate of the cylinder cover 3. A sealing cover 1 is sleeved on the top of the feeding hopper 24. A servo motor 25 is fixed on the top plate of the cylinder cover 3. The rotating shaft of the servo motor 25 passes through the top plate of the cylinder cover 3, and the bottom end of the rotating shaft of the servo motor 25 is connected to the connecting shaft 26 through a coupling. The stirring plate 27 is a hollow "middle" shaped frame. The middle part of the stirring plate 27 is a cylindrical structure. The top of the guide pipe 30 is fixed. There is a feeding hopper 31, the top of which is threadedly sleeved with a sealing cover 2, an agitator 28 is installed inside the stirring plate 27, an electromagnetic discharge valve tube 29 is plugged and fixed to the bottom of the stirring plate 27, a material guide tube 30 is plugged and fixed to the top of the stirring plate 27, the agitator 28 includes a motor 2 and a transmission shaft 2 which is transmission-connected to the power output end of the motor 2, two blades 2 are fixed on the shaft body of the transmission shaft 2, and the two blades 2 rotate with the transmission shaft 2 in the middle cylindrical structure of the stirring plate 27.

[0046] When in use, before the cylinder cover 3 is installed on the cylinder body 1, sodium sulfate is injected into the stirring plate 27 through the feeding hopper 231 and the material guide pipe 30. When the cylinder cover 3 is installed, after the stirring plate 27 and the axe-type stirring plate 32 pass through the inner ring opening of the storage rack 4, the cylinder cover 3 is overlapped on the storage rack 4 and fixed by the bolt 8; the switch of the stirrer 28 is triggered to achieve mixing and dilution of the materials inside the stirring plate 27. After the switch of the electromagnetic discharge valve pipe 29 is triggered, the phosphoric acid can be mixed and diluted inside the cylinder body 1, and the diluted sodium sulfate inside the stirring plate 27 can be injected into the diluted phosphoric acid in the cylinder body 1, that is, the diluted sodium sulfate can be slowly poured into the diluted phosphoric acid inside the cylinder body 1 without opening the feeding port 13.

[0047] An axe-type stirring plate 32 is fixed to the bottom end of the stirring vertical plate 27, and stirring horizontal plates 33 are fixed on both sides of the stirring vertical plate 27. A storage groove 34 is provided on the surface of the stirring horizontal plate 33, and an extension plate 37 is rotatably connected inside the storage groove 34. A reserved opening 39 is provided on the surface of the extension plate 37, and a knife plate 40 is fixed inside the reserved opening 39. There are two groups of stirring horizontal plates 33, and the two stirring horizontal plates 33 are symmetrically distributed about the connecting shaft 26. Each group of stirring horizontal plates 33 is provided with multiple stirring horizontal plates, and multiple stirring horizontal plates 33 are arranged and distributed at equal distances and sizes along the rod body of the connecting shaft 26. The storage groove 34 is an arc-shaped groove, and the extension plate 37 is a square plate. Both ends of the extension plate 37 are provided with arc surfaces, and rubber clips 38 are fixed on the arc surfaces. After the extension plate 37 is stored in the storage groove 34, the rubber clips 38 clamp The extension plate 37 and the receiving groove 34 are elastically deformed between them. A through hole 36 is provided on the surface of the extension plate 37. A limit shaft 35 is inserted inside the through hole 36. The two ends of the limit shaft 35 are respectively fixed on two parallel side walls of the receiving groove 34. Four through holes 41 are provided on the surfaces of the stirring cross plate 33 and the extension plate 37. The two groups of through holes 41 are penetrated by bolts 42 to limit the extension plate 37. The reserved opening 39 is a square groove. There are two reserved openings 39. The two reserved openings 39 are symmetrically distributed about the through hole 36. After the extension plate 37 is rotated ninety degrees in the receiving groove 34, the two reserved openings 39 are both on the outside of the receiving groove 34. The knife plate 40 is a diamond column. There are multiple knife plates 40. The multiple knife plates 40 are arranged and distributed at equal distances and sizes along the long side of the reserved opening 39.

[0048] When in use, the axe-type stirring plate 32 and the stirring cross plate 33 are respectively fixed at the bottom of the stirring vertical plate 27 and on both sides of the stirring vertical plate 27, so that when the switch of the servo motor 25 is triggered, the stirring vertical plate 27 is driven to rotate. The stirring vertical plate 27 rotates while satisfying the stirring of the material inside the cylinder 1. The installation of the axe-type stirring plate 32 and the stirring cross plate 33 increases the stirring radiation area of ​​the stirring vertical plate 27. It should be particularly noted that the spacing between the two ends of the stirring cross plate 33 on both sides of the stirring vertical plate 27 is smaller than the inner diameter of the storage rack 4. This ensures that when the cylinder cover 3 is installed above the storage rack 4, the bottom end of the stirring vertical plate 27 can be inserted into the cylinder 1.

[0049] The reason why the extension plate 37 is installed inside the stirring horizontal plate 33 is that when the liquid material is stirred inside the cylinder 1, the extension plate 37 is stored in the storage groove 34. When the powder material is mixed inside the cylinder 1, the bolt 2 42 is first removed from the stirring horizontal plate 33, and then the extension plate 37 is rotated ninety degrees with the limit shaft 35 as the center axis. Then, the bolt 2 42 is penetrated through the through holes 36 on the surfaces of the stirring horizontal plate 33 and the extension plate 37 and then locked. At this time, the extension plate 37 and the stirring horizontal plate 33 are perpendicular, and the knife plate 40 is exposed from the storage groove 34. The stirring horizontal plate 33 follows the stirring vertical plate 27 and is driven by the servo motor 25 to rotate. While stirring the material, the knife plate 40 can break the agglomerated material, which facilitates improving the uniformity of mixing the powder material.

[0050] The detailed usage process is as follows:

[0051] Equipment installation and preparation: The equipment mainly includes the cylinder 1, cylinder cover 3, material storage rack 4, stirring vertical plate 27 and other parts. The cylinder 1 is fixed on the support 2, and the discharge valve pipe is installed at the bottom. The cylinder cover 3 is connected to the cylinder 1 through bolts 8. The material storage rack 4 is an optional structure, and it is decided whether to install it according to needs. If the material storage rack 4 is installed, it is overlapped on the top plate of the cylinder 1 and fixed by plug pipe 6 and bolts 8. At the same time, ensure that the sealing gasket 10 is clamped to produce elastic deformation to enhance the sealing effect.

[0052] Material dilution and mixing:

[0053] Dilution of carboxymethyl cellulose and sodium alkyl hydroxamate: These two materials are respectively put into the collection tank 11 of the storage rack 4 through the feeding port 13 and the insertion tube 14, and the two areas are separated by the partition 12. Clean water is added to the two areas for dilution. The cover 18 is screwed on the screw ring 17, and the rubber sleeve 21 and the slot 19 are matched to achieve the limit and seal. The agitator 22 is started to mix and dilute the materials in the collection tank 11.

[0054] Dilution of sodium sulfate: Sodium sulfate is injected into the stirring plate 27 through the feeding hopper 2 31 and the guide pipe 30. The stirrer c28 is started to mix and dilute the sodium sulfate inside the stirring plate 27.

[0055] Material injection and mixing:

[0056] Injection of diluted carboxymethyl cellulose and sodium alkyl hydroxamate: trigger the switch of the electromagnetic discharge valve pipe 23 to inject the diluted materials in the collecting tank 11 into the cylinder 1.

[0057] Injection of diluted sodium sulfate: trigger the switch of electromagnetic discharge valve tube 29 to inject the diluted sodium sulfate in the stirring plate 27 into the cylinder 1 to mix with the diluted phosphoric acid.

[0058] Material mixing:

[0059] Stirring effect of the stirring vertical plate 27: the servo motor 25 drives the stirring vertical plate 27 to rotate, and at the same time the axe-shaped stirring plate 32 and the stirring horizontal plate 33 stir the materials inside the simplified body 1.

[0060] The mixing horizontal plate 33 and the extension plate 37 are used in combination: when mixing powdered materials, the extension plate 37 rotates 90 degrees from the receiving groove 34 and is perpendicular to the mixing horizontal plate 33. The knife plate 40 is exposed from the receiving groove 34, and while mixing the materials, it breaks up the agglomerated materials and improves the mixing uniformity.

[0061] Discharging: After all materials are mixed, open the discharging valve pipe at the bottom of the cylinder 1 to discharge the prepared high dolomite fluorite ore flotation adjuster.

[0062] Example 2, based on Example 1, proposes an application process of a preparation device for a flotation regulator for high dolomite fluorite ore, the process comprising the following steps:

[0063] Step 1: prepare the following raw materials by weight: 5-20 parts of phosphoric acid, 10-50 parts of carboxymethyl cellulose, 10-30 parts of sodium sulfate, and 5-10 parts of sodium alkyl hydroxamate;

[0064] Step 2: Weigh phosphoric acid, carboxymethyl cellulose, sodium sulfate, and sodium alkyl hydroxamate according to the above proportions, place the phosphoric acid in the cylinder 1 through the first feeding hopper 24, add water, stir, and dilute to 10%; place carboxymethyl cellulose and sodium alkyl hydroxamate in two equal areas in the collecting tank 11, add water, stir, and dilute to 10%; place sodium sulfate in the stirring vertical plate 27 through the second feeding hopper 31, add water, stir, and dilute to 10%;

[0065] Step 3: Slowly pour the diluted sodium sulfate into the diluted phosphoric acid in step 1, and stir after pouring for 10 minutes;

[0066] Step 4: pour the diluted carboxymethyl cellulose and sodium alkyl hydroxamate in step 1 into the mixed liquid stirred in step 3 in sequence, and stir after pouring for 30 minutes; the prepared high-dolomite fluorite ore flotation regulator increases the floatability difference between fluorite and dolomite, shows a good flotation effect, and reduces the loss of fluorite during the flotation process, solving the problem that the current high-dolomite fluorite is difficult to be processed and utilized.

[0067] Example 3, based on Example 2, uses a high dolomite fluorite mine in Henan as raw material, and the sample mainly contains 23.22% CaF2, 36.24% CaMg(CO3)2, 6.21% CaCO3, 15.33% SiO2, etc., among which the dolomite content is high and difficult to separate.

[0068] A method for positive flotation of high-dolomite fluorite, comprising the following steps:

[0069] 1) Crushing the Henan fluorite ore and grinding it with a ball mill to a fineness of -0.074mm, which accounts for 75% of the original ore mass;

[0070] 2) Prepare ore powder into ore pulp, add 400g / t dolomite regulator into the ore pulp, stir for 3 minutes, then add 1000g / t inhibitor, stir for 3 minutes, then add 400g / t oleic acid as collector;

[0071] 3) Stir and aerate for flotation, the aeration volume is 0.2m 3 / h, after one roughing and one scavenging, fluorite rough concentrate is obtained;

[0072] 4) Add dolomite adjuster to the pulp containing fluorite crude concentrate, and the amount of dolomite adjuster corresponding to the pulp in each selection from selection one to selection four is 20g / t, stir and aerate, and obtain the fluorite concentrate product after 7 selections.

[0073]

[0074] Example 4, on the basis of Example 3, uses a high dolomite fluorite mine in Hunan as raw material, the sample mainly contains 16.74% CaF2, 42.65% CaMg(CO3)2, 3.42% CaCO3, 20.73% SiO2, etc., among which the dolomite content is high and difficult to separate.

[0075] The positive flotation method adopted in this embodiment is basically the same as that in the third embodiment, the only difference is that in the step 1), the particle size accounts for 80% of the original ore mass, the amount of dolomite adjusting agent corresponding to the pulp in the roughing process in step 2) is 500 g / t, and the amount of dolomite corresponding to the pulp in each selection process in step 4) is 50 g / t.

[0076]

[0077] Example 5, on the basis of Example 4, a high dolomite fluorite mine in Inner Mongolia is used as raw material, and the sample mainly contains 15.46% CaF2, 51.52% CaMg(CO3)2, 7.12% CaCO3, 10.54% SiO2, etc., among which the dolomite content is high and difficult to separate.

[0078] The positive flotation method used in this embodiment is basically the same as that in the third embodiment, the only difference is that the amount of dolomite adjusting agent used in the roughing pulp in step 2) of this embodiment is 1000 g / t, and the amount of dolomite adjusting agent used in each of the concentrating pulp from the first to the fourth concentrating in step 4) is 100 g / t.

[0079]

[0080] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A preparation device for a flotation regulator for high dolomite fluorite ore, used for preparing a regulator prepared from phosphoric acid, carboxymethyl cellulose, sodium sulfate, and sodium alkyl hydroxamate, comprising a cylinder (1) for diluting phosphoric acid and mixing the remaining diluted materials, a discharge valve pipe being installed at the bottom end of the cylinder (1), a plurality of supports (2) being fixed to the bottom surface of the cylinder (1), and a cylinder cover (3) being connected to the top of the cylinder (1) by bolts (8), characterized in that: A material storage rack (4) is provided between the cylinder body (1) and the cylinder cover (3), and a material collection trough (11) is provided inside the material storage rack (4). Two partitions (12) are fixed on the inner wall of the material collection trough (11), and the inside of the material collection trough (11) is divided into two equal areas. The two equal areas are used to dilute carboxymethyl cellulose and sodium alkyl hydroxamate respectively. Two feeding ports (13) are provided on the top surface of the cylinder cover (3), and a plug (14) is inserted on the top plate of the material storage rack (4). The plug (14) is inserted in the feeding port (13). A screw-connecting ring (17) is fixed on the top surface of the cylinder cover (3), and a sealing cover (18) is sleeved and screwed on the upper part of the screw-connecting ring (17). A stirrer (22) is installed on the top plate of the sealing cover (18). The bottom end of the material storage rack (4) is installed with An electromagnetic discharge valve tube (23) is provided. A stirring vertical plate (27) is rotatably connected to the bottom of the cylinder cover (3) for diluting sodium sulfate. A stirrer (28) is installed inside the stirring vertical plate (27). An electromagnetic discharge valve tube (29) is plugged and fixed to the bottom end of the stirring vertical plate (27). A material guide tube (30) is plugged and fixed to the top of the stirring vertical plate (27). An axe-type stirring plate (32) is fixed to the bottom end of the stirring vertical plate (27). A stirring horizontal plate (33) is fixed on both sides of the stirring vertical plate (27). A receiving groove (34) is provided on the surface of the stirring horizontal plate (33). An extension plate (37) is rotatably connected inside the receiving groove (34). A reserved opening (39) is provided on the surface of the extension plate (37). A knife plate (40) is fixed inside the reserved opening (39).

2. The preparation equipment of a flotation regulator for high dolomite fluorite ore according to claim 1, characterized in that: The top plate of the cylinder (1), the bottom plate of the cylinder cover (3) and the bottom plate of the storage rack (4) are all provided with a plurality of bolt holes (5). A plug tube (6) is inserted and fixed in the bolt holes (5) on the surface of the storage rack (4). The storage rack (4) is a "convex"-shaped circular ring rack. The height of the plug tube (6) is greater than the thickness of the bottom plate of the storage rack (4). The two ends of the plug tube (6) are respectively inserted in the bolt holes (5) on the top plate of the cylinder (1) and the bottom plate surface of the cylinder cover (3). A bolt (8) is inserted in the inside of the plug tube (6). The top and bottom ends of the inner ring surface of the plug tube (6) are fixed with rubber rings (7). The rubber ring (7) is clamped between the screw rod of the bolt (8) and the plug tube (6) to generate elastic deformation.

3. The preparation equipment of a flotation regulator for high dolomite fluorite ore according to claim 1, characterized in that: The top surface of the bottom plate of the material storage rack (4) and the bottom surface of the bottom plate of the material storage rack (4) are both provided with an embedding groove (9), the embedding groove (9) is an annular groove, a sealing gasket (10) is fixed inside the embedding groove (9), the sealing gasket (10) is an annular plate structure, the thickness of the sealing gasket (10) is greater than the height of the embedding groove (9), after the bolt (8) is tightened, the bottom plate of the cylinder cover (3) and the top plate of the cylinder body (1) clamp the bottom plate of the material storage rack (4), and at this time, the sealing gasket (10) is compressed to produce elastic deformation.

4. The preparation equipment of a flotation regulator for high dolomite fluorite ore according to claim 1, characterized in that: The material collecting trough (11) is an annular groove, the partition plate (12) is fixed between the inner annular surface of the material collecting trough (11) and the outer annular surface of the material collecting trough (11), the top surface of the insert pipe (14) is provided with a side groove (15), the side groove (15) is an annular groove, a sealing ring (16) is fixedly sleeved inside the side groove (15), the outer annular surface of the sealing ring (16) is larger than the outer annular surface of the insert pipe (14), after the insert pipe (14) is inserted into the feeding port (13), the sealing ring (16) is squeezed between the feeding port (13) and the insert pipe (14) to generate elastic deformation.

5. The preparation equipment of a flotation regulator for high dolomite fluorite ore according to claim 1, characterized in that: The outer ring surface of the screw-on ring (17) is provided with an external thread, and the inner ring surface of the sealing cover (18) is provided with an internal thread. The external thread and the internal thread are matched and connected. A plurality of handles are fixed to the outer ring surface of the sealing cover (18). A clamping groove (19) is provided on the bottom surface of the sealing cover (18). The clamping groove (19) is an annular groove with a circular arc-shaped fracture. An introduction ring (20) is inserted below the clamping groove (19). The bottom end of the introduction ring (20) is fixed to the top surface of the cylinder cover (3). A rubber clamping sleeve (21) is sleeved and fixed on the top end of the introduction ring (20). The rubber clamping sleeve (21) is an annular structure with a circular surface in cross section. The circular surface diameter of the rubber clamping sleeve (21) is larger than the notch width of the clamping groove (19). The stirrer (22) comprises a motor and a transmission shaft (1) which is transmission-connected to the power output end of the motor. Two blades (1) are fixed on the rod body of the transmission shaft.

6. The preparation equipment of a flotation regulator for high dolomite fluorite ore according to claim 1, characterized in that: A feeding hopper (24) is plugged and fixed on the top plate of the cylinder cover (3), a sealing cover (1) is sleeved on the top of the feeding hopper (24), a servo motor (25) is fixed on the top plate of the cylinder cover (3), a rotating shaft of the servo motor (25) passes through the top plate of the cylinder cover (3), and the bottom end of the rotating shaft of the servo motor (25) is connected to the connecting shaft (26) through a coupling, the stirring vertical plate (27) is a hollow "Z"-shaped frame, the middle part of the stirring vertical plate (27) is a cylindrical structure, a feeding hopper (31) is fixed on the top of the material guide pipe (30), and a sealing cover (2) is sleeved and screwed on the top of the feeding hopper (31).

7. The preparation equipment of a flotation regulator for high dolomite fluorite ore according to claim 1, characterized in that: The stirrer 2 (28) comprises a motor 2 and a transmission shaft 2 which is transmission-connected to the power output end of the motor 2. Two blades 2 are fixed on the shaft body of the transmission shaft 2. The two blades 2 rotate along with the transmission shaft 2 in the middle cylindrical structure of the stirring vertical plate (27).

8. The preparation equipment of a flotation regulator for high dolomite fluorite ore according to claim 1, characterized in that: The stirring transverse plates (33) are provided in two groups, the two stirring transverse plates (33) are symmetrically distributed about the connecting shaft (26), each group of stirring transverse plates (33) is provided with a plurality of stirring transverse plates (33), and the plurality of stirring transverse plates (33) are arranged and distributed at equal distances and in equal sizes along the rod body of the connecting shaft (26), the receiving groove (34) is an arc-shaped groove, the extension plate (37) is a square plate, both ends of the extension plate (37) are provided with arc-shaped surfaces, and rubber clips (38) are fixed on the arc-shaped surfaces. After the extension plate (37) is received in the receiving groove (34), the rubber clips (38) are The sheet (38) is clamped between the extension plate (37) and the receiving groove (34) to generate elastic deformation. The surface of the extension plate (37) is provided with a through hole (36). A limit shaft (35) is inserted into the inside of the through hole (36). The two ends of the limit shaft (35) are respectively fixed on two parallel side walls of the receiving groove (34). The surfaces of the stirring cross plate (33) and the extension plate (37) are provided with four through holes (41). The two groups of through holes (41) are penetrated by bolts (42) to achieve the limit of the extension plate (37).

9. The preparation equipment of the flotation adjusting agent for high dolomite fluorite ore according to claim 8, characterized in that: The reserved opening (39) is a square groove, and two reserved openings (39) are provided. The two reserved openings (39) are symmetrically distributed about the through hole (36). After the extension plate (37) rotates ninety degrees in the receiving groove (34), the two reserved openings (39) are both located outside the receiving groove (34). The knife plate (40) is a diamond column, and a plurality of knife plates (40) are provided. The plurality of knife plates (40) are arranged and distributed at equal distances and in equal sizes along the long sides of the reserved opening (39).

10. An application process of the equipment for preparing the flotation regulator for high dolomite fluorite ore according to any one of claims 1 to 9, characterized in that: The process comprises the following steps: Step 1: prepare the following raw materials by weight: 5-20 parts of phosphoric acid, 10-50 parts of carboxymethyl cellulose, 10-30 parts of sodium sulfate, and 5-10 parts of sodium alkyl hydroxamate; Step 2: Weigh phosphoric acid, carboxymethyl cellulose, sodium sulfate, and sodium alkyl hydroxamate according to the above proportions, place the phosphoric acid in the cylinder (1) through the first feeding hopper (24), add water, stir, and dilute to 10%; place carboxymethyl cellulose and sodium alkyl hydroxamate in two equal areas in the collecting tank (11), add water, stir, and dilute to 10%; place sodium sulfate in the stirring vertical plate (27) through the second feeding hopper (31), add water, stir, and dilute to 10%; Step 3: Slowly pour the diluted sodium sulfate into the diluted phosphoric acid in step 1, and stir after pouring for 10 minutes; Step 4: pour the diluted carboxymethyl cellulose and sodium alkyl hydroxamate in step 1 into the mixed liquid stirred in step 3 in sequence, and stir after pouring for 30 minutes; the prepared high-dolomite fluorite ore flotation regulator increases the floatability difference between fluorite and dolomite, shows a good flotation effect, and reduces the loss of fluorite during the flotation process, solving the problem that the current high-dolomite fluorite is difficult to be processed and utilized.

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