CN113522074A - Powder-liquid mixing equipment - Google Patents
Powder-liquid mixing equipment Download PDFInfo
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- CN113522074A CN113522074A CN202010294671.9A CN202010294671A CN113522074A CN 113522074 A CN113522074 A CN 113522074A CN 202010294671 A CN202010294671 A CN 202010294671A CN 113522074 A CN113522074 A CN 113522074A
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- 239000007788 liquid Substances 0.000 title claims abstract description 269
- 238000002156 mixing Methods 0.000 title claims abstract description 140
- 239000000843 powder Substances 0.000 claims abstract description 218
- 238000009688 liquid atomisation Methods 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims description 40
- 238000003860 storage Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 16
- 239000006185 dispersion Substances 0.000 abstract description 15
- 239000000463 material Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000005096 rolling process Methods 0.000 description 8
- 239000003463 adsorbent Substances 0.000 description 7
- 238000005507 spraying Methods 0.000 description 5
- 238000004898 kneading Methods 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
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Abstract
The invention relates to the technical field of powder-liquid mixing, and provides powder-liquid mixing equipment. This powder liquid mixing apparatus includes: the powder-liquid mixing bin (10) comprises a powder-liquid mixing cavity, and a powder inlet and a liquid inlet which are communicated with the powder-liquid mixing cavity; the powder dispersing part (7) is arranged at a powder inlet of the powder-liquid mixing bin (10) and is used for dispersing powder into the powder-liquid mixing cavity; and the liquid atomization piece is arranged at a liquid inlet of the powder-liquid mixing bin (10) and used for atomizing liquid, wherein the powder dispersed by the powder dispersion piece flows to the liquid atomizing bin and intersects with the liquid atomizing bin so as to fully mix the dispersed powder and the atomized liquid. The powder-liquid mixing equipment can enable powder and liquid to be mixed more uniformly.
Description
Technical Field
The invention relates to the technical field of powder-liquid mixing, in particular to powder-liquid mixing equipment.
Background
The products such as catalyst and adsorbent are widely applied to petrochemical industry and environmental protection industry, and play an important role in efficient production of chemicals, energy conservation and environmental protection. In the production process of the catalyst and the adsorbent, the catalyst and the adsorbent are generally formed into a specific shape such as a stripe shape, a tooth ball shape and a honeycomb shape. Before the molding treatment, the powder needs to be mixed with a specific liquid to form a wet material with a specific water content. The powder applied to the catalyst and the adsorbent is Al2O3、TiO2、CeO2、Fe2O3Kaolin, various molecular sieves and the like, and can be one powder or a mixture of a plurality of powders. The liquid used is generally a solution containing acids, soluble salts and organic substances.
The uniformity of mixing the powder and the liquid plays an important role in various properties of the product, such as strength, catalytic activity, adsorption performance, stability and the like of the product. Therefore, it is very important to obtain a wet material with high uniformity. Since the wet material formed after mixing the powder and the liquid is still in a solid state and the water content is generally 30 to 40%, the solid and the liquid phases cannot be mixed by a conventional method such as liquid stirring. In the existing treatment process, a specific mechanical device is usually adopted to homogenize the powder-liquid mixture. These mechanical devices include roll mills, kneaders, and various compounders, among others.
The prior art Chinese patent CN204073970U discloses a rolling machine for processing catalyst production powder, which is composed of a rolling cylinder, a rolling wheel, a liquid inlet device and the like. Powder is added into the rolling barrel through a feeding port, liquid flows into the rolling machine from a liquid inlet groove in an overflow mode to be contacted with the powder material, and the powder phase and the liquid phase are mixed under the rolling action of the rolling wheel.
The prior art CN201333386Y also discloses a coulter type catalyst intermittent kneading machine, in which coulters are mounted on the main shaft in the horizontal kneading machine shell and are distributed radially, and a kneading plate is also arranged on the kneading machine shell. The upper part of the shell is provided with a liquid inlet, and the powder and the liquid can be sheared and extruded under the action of the coulter and the auxiliary structure after being contacted, so that the two phases of the powder and the liquid are mixed to form the water-containing material.
Both the roller and kneader described above have the following drawbacks: the powder and the liquid are generally respectively added into a mixing cavity of the equipment, and the powder and the liquid cannot be in full contact, so that the powder and the liquid are difficult to be uniformly mixed. Specifically, the powder that first contacts the liquid forms a material with a high moisture content, while the remaining powder is still in a dry or low moisture state. And then, under the shearing and rolling action of mechanical force, mixing the materials with different water contents. Because the initial state of the powder is in an uneven state, the powder is difficult to achieve an ideal homogenization state under the action of mechanical force, and particularly when the liquid contains precursor salts and organic matters, the substances are greatly adsorbed by the powder with high initial water content and are difficult to be uniformly distributed in the powder in the subsequent mixing process.
Disclosure of Invention
The invention aims to overcome the technical problem of poor powder-liquid mixing uniformity of powder-liquid mixing equipment in the prior art, and provides the powder-liquid mixing equipment which can enable powder and liquid to be mixed more uniformly.
In order to achieve the above object, the present invention provides a powder-liquid mixing apparatus comprising: the powder-liquid mixing bin comprises a powder-liquid mixing cavity, and a powder inlet and a liquid inlet which are communicated with the powder-liquid mixing cavity; the powder dispersing part is arranged at a powder inlet of the powder-liquid mixing bin and is used for dispersing powder into the powder-liquid mixing cavity; and the liquid atomization piece is arranged at a liquid inlet of the powder-liquid mixing bin and used for atomizing liquid, wherein the powder after the powder dispersion piece disperses flows to the liquid direction intersecting with the liquid after the liquid atomization piece atomizes, so that the dispersed powder and the atomized liquid are fully mixed.
Preferably, the powder-liquid mixing bin includes a top wall and a side wall for defining the powder-liquid mixing chamber, the powder inlet is disposed on the top wall, the liquid inlet is disposed on the side wall, the powder flow direction is in an axial direction of the powder inlet, the liquid flow direction is in an axial direction of the liquid inlet, and an included angle between the axial direction of the powder inlet and the axial direction of the liquid inlet is 0-180 °.
Preferably, the powder dispersing member is a disc member, the disc member includes a disc main body and a plurality of blades, the plurality of blades are arranged on the upper surface of the disc main body at intervals along the circumferential direction of the disc main body, the powder dispersing member is coaxially arranged at the powder inlet and can rotate around the axis thereof, and the powder-liquid mixing device includes a driving mechanism for driving the disc main body to rotate.
Preferably, the powder-liquid mixing equipment comprises a powder bin which is arranged above the powder-liquid mixing bin and communicated with the powder inlet.
Preferably, the inside of powder feed bin is injectd the taper chamber and the column chamber of coaxial intercommunication, the taper chamber is located the top in column chamber, the powder feed bin include with the powder entry of taper chamber intercommunication and with the powder export of column chamber intercommunication, the powder export set up to with the column chamber with the coaxial intercommunication of powder entry in powder liquid mixing bunker.
Preferably, the drive mechanism comprises: the first rotating rod is longitudinally arranged inside the powder bin, and the bottom end of the first rotating rod is connected with the top surface of the disc main body; the second rotating rod transversely extends from the outside of the powder bin to the inside of the powder bin, and one end of the second rotating rod, which is positioned in the powder bin, is in transmission connection with one end of the first rotating rod, which is far away from the disc main body, through a gear assembly; first driving motor, first driving motor's drive shaft with being located of second dwang the outside one end of powder feed bin is connected, first driving motor sets up to can drive the second dwang rotates around its self axis, the second dwang can pass through the gear assembly drives first dwang rotates around its self axis.
Preferably, powder-liquid mixing equipment includes quantitative scale and inlet pipe, quantitative scale set up in the top of powder feed bin, the one end of inlet pipe with the discharge gate of quantitative scale is connected, and the other end stretches into in the powder feed bin to throw the powder into with constant speed in the powder feed bin.
Preferably, the liquid atomization piece is a pressure type atomization nozzle, the powder-liquid mixing equipment comprises a liquid storage tank and a liquid pump, and the pressure type atomization nozzle is communicated with the liquid storage tank through a pipeline; the liquid pump is arranged on the pipeline, and the liquid pump is arranged to be capable of pumping the liquid in the liquid storage tank to the pressure type atomizing nozzle at a constant speed.
Preferably, the powder-liquid mixing device comprises a plurality of pressure type atomizing nozzles, and the plurality of pressure type atomizing nozzles are uniformly distributed on the upper part of the powder-liquid mixing cavity along the circumferential direction of the powder-liquid mixing bin.
Preferably, the powder-liquid mixing apparatus includes a discharging unit including: the powder-liquid mixing chamber is arranged below the powder-liquid mixing chamber, a discharging cavity is formed in the discharging chamber, the discharging cavity is communicated with the bottom of the powder-liquid mixing chamber, and the discharging chamber is provided with a discharging opening; the powder rotating disc is arranged at the top of the discharging cavity and corresponds to the discharging hole of the powder-liquid mixing bin, the powder rotating disc comprises a rotating disc body and a plurality of dispersing blades, and the dispersing blades are arranged on the rotating disc body at intervals along the circumferential direction of the rotating disc body; and the driving device is connected with the turntable body and is used for driving the powder turntable to rotate.
Through the technical scheme, the powder dispersing part can enable powder thrown into the powder-liquid mixing cavity to be thrown out in a dispersion state in a spraying mode, the liquid atomizing part can enable liquid thrown into the powder-liquid mixing cavity to be atomized and then to be sprayed out, the flow direction of the powder dispersed by the powder dispersing part is intersected with the flow direction of the liquid atomized by the liquid atomizing part, and therefore the powder and the liquid can be fully contacted and efficiently and uniformly mixed in the process of throwing the powder and the liquid; solutes dissolved in the liquid can reach a highly dispersed state along with the liquid, and the solutes can be uniformly adsorbed by the powder, so that the uniformity and quality stability of products such as catalysts, adsorbents and the like can be improved; meanwhile, the mixing process of the powder and the liquid is generated in the feeding process, and the production efficiency can be improved.
Drawings
FIG. 1 is a schematic structural view of one embodiment of a powder-liquid mixing apparatus of the present invention;
FIG. 2 is a cross-sectional view taken along the A-A plane of the powder-liquid mixing apparatus shown in FIG. 1;
FIG. 3 is a schematic structural diagram of one embodiment of a powder dispersing member of the powder-liquid mixing apparatus shown in FIG. 1;
fig. 4 is a schematic structural diagram of an embodiment of a powder turntable of the powder-liquid mixing apparatus shown in fig. 1.
Description of the reference numerals
1. Continuous weightlessness weighing; 2. a feed pipe; 3. a first drive motor; 4. a second rotating lever; 5. a powder storage bin; 6. a first rotating lever; 7. a powder dispersion member; 8. a liquid storage tank; 9. a pressure-type atomizing nozzle; 10. powder and liquid mixing bin; 11. an air hammer; 12. a spreader cone; 13. a discharge chamber; 14. fixing the disc; 15. a powder turntable; 16. a discharge opening; 17. a rotating shaft; 18. a second drive motor; 19. dispersing the leaves; 20. a turntable body; 21. a disc main body; 22. a blade.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the use of directional terms such as "upper" and "lower" generally refers to the orientation as shown in the drawings.
As shown in fig. 1, the present invention provides a powder-liquid mixing apparatus, comprising: the powder-liquid mixing bin 10 comprises a powder-liquid mixing cavity, and a powder inlet and a liquid inlet which are communicated with the powder-liquid mixing cavity; the powder dispersing part 7 is arranged at a powder inlet of the powder-liquid mixing bin 10, and is used for dispersing powder into the powder-liquid mixing cavity; and the liquid atomization piece is arranged at a liquid inlet of the powder-liquid mixing bin 10 and used for atomizing liquid, wherein the powder after the powder dispersion piece 7 disperses flows to the liquid direction intersecting with the liquid after the liquid atomization piece atomizes, so that the dispersed powder and the atomized liquid are fully mixed. The dispersion means that the powder is discharged in a dispersed manner, and for example, the powder in a cohesive state is dispersed into powder particles having smaller particles by a centrifugal force or by a blowing method to form a powder in a dispersed state, and the powder is sufficiently mixed with the liquid in an atomized state.
Through the technical scheme, the powder dispersing part 7 can spray the powder put into the powder-liquid mixing cavity in a dispersion state, the liquid atomizing part can atomize the liquid put into the powder-liquid mixing cavity and spray the atomized liquid, and the flow direction of the powder dispersed by the powder dispersing part is intersected with the flow direction of the liquid atomized by the liquid atomizing part, so that the powder and the liquid can be fully contacted and efficiently and uniformly mixed in the process of putting the powder and the liquid; solutes dissolved in the liquid can reach a highly dispersed state along with the liquid, and the solutes can be uniformly adsorbed by the powder, so that the uniformity and quality stability of products such as catalysts, adsorbents and the like can be improved; meanwhile, the mixing process of the powder and the liquid is generated in the feeding process, and the production efficiency can be improved.
As an embodiment, the mass ratio of the feeding rate of the powder to the liquid inlet rate of the liquid ranges from 1 to 19 (based on the mass delivered in unit time), and the water content of the formed final powder-liquid mixture ranges from 5 to 50%. That is, when the mass ratio is 1, the water content of the formed powder-liquid mixture is 50% (i.e., half of the powder and half of the liquid); when the mass ratio is 19, the water content of the formed powder-liquid mixture is 5% (i.e., 19 parts of powder and 1 part of liquid). Preferably, the water content of the powder-liquid mixture ranges from 15% to 45%.
As an embodiment, as shown in fig. 1, the powder-liquid mixing bin 10 includes a top wall and a side wall for defining the powder-liquid mixing chamber, the powder inlet is disposed on the top wall, the liquid inlet is disposed on the side wall, the powder flow direction is in an axial direction of the powder inlet, the liquid flow direction is in an axial direction of the liquid inlet, and an included angle a between the axial direction of the powder inlet and the axial direction of the liquid inlet is 0 to 180 °.
As an embodiment, as shown in fig. 1, the middle portion of the powder-liquid mixing bin 10 is a cylindrical structure, the lower portion of the powder-liquid mixing bin 10 is a conical structure, the top portion of the powder-liquid mixing bin 10 is a truncated cone structure, the powder inlet of the powder-liquid mixing bin 10 is located at the top end of the truncated cone structure, and the liquid inlet of the powder-liquid mixing bin 10 is located on the side wall of the truncated cone structure. The height ratio of the cylindrical structure to the conical structure is 0.5-5. Preferably, the height ratio of the two is 1 to 3.
In one embodiment, as shown in fig. 1, a plurality of air hammers 11 for generating vibration to the powder-liquid mixing bin 10 are disposed on an outer wall of the powder-liquid mixing bin 10. Preferably, the air hammers 11 are two groups, and the total number of the air hammers 11 can be 2-12. Preferably, the total number of air hammers 11 is 8, 4 per group. A set of air hammers 11 are uniformly distributed on the outer wall of the cylindrical structure in the middle of the powder-liquid mixing bin 10, and a set of air hammers 11 are uniformly distributed on the outer wall of the conical structure at the lower part of the powder-liquid mixing bin 10. The air hammer 11 can beat the side wall of the powder-liquid mixing bin 10 to generate vibration, and the beating frequency can be set. The powder-liquid mixture stuck on the inner wall of the powder-liquid mixing bin 10 can be vibrated down in time through vibration.
As an embodiment, as shown in fig. 3, the powder dispersing member 7 is a disk-shaped member, the disk-shaped member includes a disk main body 21 and a plurality of blades 22, the plurality of blades 22 are disposed on the upper surface of the disk main body 21 at intervals along the circumferential direction of the disk main body 21, the powder dispersing member 7 is coaxially disposed at the powder inlet and is capable of rotating around the axis thereof, and the powder-liquid mixing device includes a driving mechanism for driving the disk main body to rotate. Preferably, a plurality of said blades 22 are evenly distributed at intervals along the axis of said disc body 21. The disk main body 21 is provided so as to be rotatable about its axis. Preferably, the drive mechanism is connected to the disk main body 21. When the powder spraying device works, the disk main body is driven by the driving mechanism to rotate, the blades 22 rotate along with the rotation of the disk main body to scatter powder, and the disk main body 21 realizes continuous spraying of the powder under the action of the driving mechanism.
As an embodiment, as shown in fig. 1, the powder-liquid mixing apparatus includes a powder bin 5, and the powder bin 5 is disposed above the powder-liquid mixing bin 10 and is communicated with the powder inlet.
As an implementation mode, a cone-shaped cavity and a column-shaped cavity which are coaxially communicated are defined inside the powder bin 5, the cone-shaped cavity is located above the column-shaped cavity, the powder bin 5 comprises a powder inlet communicated with the cone-shaped cavity and a powder outlet communicated with the column-shaped cavity, and the powder outlet is arranged to coaxially communicate the column-shaped cavity with the powder inlet of the powder-liquid mixing bin 10. As shown in fig. 1, powder feed bin 5 is the narrow hopper structure under wide, powder feed bin 5 is including the cylindrical structure that is located upper portion, and the toper structure (inside of being located at the middle part is injectd the toper chamber) and the cylindrical structure (inside of being located the lower part is injectd the column chamber), and the internal diameter that is located the cylindrical structure of lower part is less than the internal diameter that is located the cylindrical structure on upper portion, and the bottom of cylindrical structure is the loudspeaker form of internal diameter crescent, powder feed bin 5 through the loudspeaker form opening that is located the bottom with the opening on powder liquid mixing bin 10 top is connected.
As an embodiment, as shown in fig. 1, the driving mechanism includes: the first rotating rod 6 is longitudinally arranged inside the powder bin 5, and the bottom end of the first rotating rod 6 is connected with the top surface of the disc main body 21; the second rotating rod 4 extends from the outside of the powder bin 5 to the inside of the powder bin 5 along the transverse direction, and one end of the second rotating rod 4, which is positioned in the powder bin 5, is in transmission connection with one end of the first rotating rod 6, which is far away from the disc main body 21, through a gear assembly; first driving motor 3, first driving motor 3's drive shaft with being located of second dwang 4 the outside one end of powder feed bin 5 is connected, first driving motor 3 sets up to can drive second dwang 4 rotates around its self axis, second dwang 4 can pass through the gear assembly drives first dwang 6 rotates around its self axis. The driving shaft of the first driving motor 3 is vertically arranged with the second rotating rod 4, and the two are in transmission connection through two vertical and meshed bevel gears. The gear assembly is composed of two mutually perpendicular and meshed bevel gears respectively arranged on the first rotating rod 6 and the second rotating rod 4.
As an implementation manner, as shown in fig. 1, the powder-liquid mixing apparatus includes a quantitative scale and a feeding pipe 2, the quantitative scale is disposed above the powder bin 5, one end of the feeding pipe 2 is connected to a discharge port of the quantitative scale, and the other end extends into the powder bin 5, so as to put powder into the powder bin 5 at a constant speed. Preferably, the quantitative scale is a continuous weightlessness scale 1, and the continuous weightlessness scale 1 can convey powder into the powder bin 5 at a constant speed.
As an embodiment, the liquid atomizing part is a pressure type atomizing nozzle 9, the powder-liquid mixing device comprises a liquid storage tank 8 and a liquid pump, and the pressure type atomizing nozzle 9 is communicated with the liquid storage tank 8 through a pipeline; the liquid pump is provided on the pipe, and the liquid pump is provided so as to be able to pressure-feed the liquid in the liquid storage tank 8 into the pressure type atomizing nozzle 9 at a constant rate. The liquid pump can continuously atomize the liquid and convey the liquid into the powder mixing bin at a constant speed, and the liquid pump is in various forms such as a diaphragm pump, a plunger pump or a centrifugal pump.
As an embodiment, the included angle between the axis of the pressure type atomizing nozzle 9 and the central axis of the powder-liquid mixing cavity is 0-180 degrees. When the pressure type atomizing nozzle 9 is oriented vertically downwards, the included angle is 0 degree; when the pressure type atomizing nozzle 9 is directed obliquely downwards, the included angle is 0-90 degrees (0 degree and 90 degrees are not included); when the pressure type atomizing nozzle 9 is oriented horizontally, the included angle is 90 degrees; when the pressure type atomizing nozzle 9 is oriented obliquely upward, the included angle is 90-180 degrees (excluding 90 degrees and 180 degrees); when the pressure atomizing nozzle 9 is oriented vertically upward, the angle is 180 °. Preferably, the axis of the pressure type atomizing nozzle 9 forms an included angle of 45 degrees with the central axis of the powder-liquid mixing cavity.
As an embodiment, as shown in fig. 2, the powder-liquid mixing apparatus includes a plurality of pressure-type atomizing nozzles 9, and the plurality of pressure-type atomizing nozzles 9 are uniformly distributed at an upper portion of the powder-liquid mixing chamber along a circumferential direction of the powder-liquid mixing bin 10. The number of the pressure type atomizing nozzles 9 is 2-8. Preferably, as shown in fig. 2, the number of the pressure type atomizing nozzles 9 is 4, 4 pressure type atomizing nozzles 9 are uniformly distributed at the upper part of the powder-liquid mixing chamber, and four corresponding liquid inlets are arranged on the corresponding powder-liquid mixing bin 10.
As an embodiment, as shown in fig. 4, the powder-liquid mixing apparatus includes a discharging unit, and the discharging unit includes: the discharging bin is positioned below the powder-liquid mixing bin 10, a discharging cavity 13 is formed in the discharging bin, the discharging cavity 13 is communicated with the bottom of the powder-liquid mixing cavity, and the discharging bin is provided with a discharging opening 16; the powder rotating disc 15 is arranged at the top of the discharging cavity 13 and is arranged corresponding to the discharging hole of the powder-liquid mixing bin 10, the powder rotating disc 15 comprises a rotating disc body 20 and a plurality of dispersing blades 19, and the plurality of dispersing blades 19 are arranged on the rotating disc body 20 at intervals along the circumferential direction of the rotating disc body 20; and the driving device is connected with the turntable body 20 and is used for driving the powder turntable 15 to rotate.
As an embodiment, the driving device includes a rotating shaft 17 and a second driving motor 18, the rotating shaft 17 extends through a bin body of the discharging bin and into the discharging chamber 13, meanwhile, the rotating shaft 17 extends through the middle of the turntable body 20, the bottom end of a section of the rotating shaft 17 located outside the discharging bin is connected with the second driving motor 18, a splitter cone 12 is arranged at the top end of a section of the rotating shaft 17 located inside the discharging bin, the splitter cone 12 is a cone, and the splitter cone 12 is used for splitting a powder-liquid mixture entering the discharging chamber 13.
As an embodiment, as shown in fig. 1, a fixed tray 14 is disposed on the top of the discharge chamber 13, the fixed tray 14 is located above the turntable body 20 and spaced from the turntable body 20, and the periphery of the fixed tray 14 is mounted on the inner wall of the discharge bin. The powder-liquid mixing device is characterized in that a conical baffle is arranged in the discharging cavity 13 and located at the lower portion of the discharging cavity 13, the conical baffle is arranged along the circumferential direction of the rotating shaft 17, the tip end of the conical baffle is connected with the rotating shaft 17 and abutted to the bottom of the rotary table body 20, and the bottom end of the conical baffle extends to the discharging opening 16, so that the conical baffle can convey powder-liquid mixed materials thrown out of the powder rotary table 15 to the discharging opening 16.
During operation, the powder is pre-loaded in the continuous weightlessness scale 1, and the continuous weightlessness scale 1 is positioned at the highest position of the whole equipment. The continuous weightlessness scale 1 can make the material fall at a constant feeding rate. The falling powder enters the powder bin 5 through the inlet pipe 2, and the powder bin 5 is wide at the top and narrow at the bottom, so that the falling powder can be collected. First driving motor 3 can drive second dwang 4 and first dwang 6 and rotate, finally drives powder dispersion spare 7 and rotates. The gathered powder is collected by the powder bin 5 and falls onto the tray main body 21. The disk main body 21 is provided with blades 22 capable of scattering the material, and the scattered powder is ejected around the disk main body 21 as a center. The powder dispersed by the powder dispersing member 7 is distributed in a highly dispersed state in the powder-liquid mixing chamber. The liquid storage tank 8 is filled with prepared solution, and inorganic salt precursors, acid liquor and organic matters are dissolved in the solution according to the production requirements of products. The liquid inlet pump is arranged on the pipeline and can pump the liquid to the pressure type atomizing nozzle 9 at a constant speed. The atomized liquid and the powder dispersed by spraying are uniformly contacted and mixed in the powder-liquid mixing cavity, the powder adsorbed with the liquid falls under the action of gravity, and the lower part of the powder-liquid mixing cavity is conical, so that the powder-liquid mixture is collected and gathered. The air hammer 11 on the outer wall of the powder-liquid mixing bin 10 can vibrate the bin body, so that the phenomenon that powder sticks to the wall in the powder-liquid mixing chamber is avoided. The powder-liquid mixture discharged from the discharge port of the powder-liquid mixing chamber enters the discharging chamber, and the second driving motor 18 drives the powder turntable 15 to rotate. The powder-liquid mixture can be further mixed under the driving of the powder rotating disc 15, and the powder-liquid mixture is finally discharged from the discharging opening 16 of the discharging bin and can be used for production.
In this equipment, powder dispersion spare 7 and liquid atomization spare can carry powder and liquid respectively to powder liquid mixing chamber with fixed speed, and powder dispersion spare 7 and liquid atomization spare can carry out high dispersion with powder and liquid in powder liquid mixing chamber respectively simultaneously, and powder and liquid after the dispersion fully contact in powder liquid mixing chamber to discharge to the chamber of unloading 13 from the discharge gate of powder liquid mixing bunker 10 under the action of gravity. The discharge chamber 13 enables further homogenization of the powders and finally discharge from the discharge opening 16 for production. This equipment utilizes powder dispersion spare 7 and liquid atomization spare to carry out high dispersion treatment to two kinds of materials of powder liquid, and the powder and the liquid drop that the particle diameter is the micron order can fully contact, can effectively avoid the generation of powder block piece for powder liquid is double-phase can the homogeneous mixing. This equipment can disperse powder and liquid and make both carry out the contact mixture uniformly to generate the wet material of specific moisture content.
The equipment can enable the powder and the liquid to reach a micron-sized high dispersion state through the modes of powder spraying and liquid atomization, so that the powder and the liquid can be in full contact and mixed to reach a uniform mixing state; solutes dissolved in the liquid reach a highly dispersed state along with the liquid, and the solutes can be uniformly adsorbed by the powder; after the powder-liquid phases are contacted and mixed in a highly dispersed state, the powder turntable 15 can further perform forced mixing on the water-containing powder-liquid mixture, so that the homogenization process of the powder-liquid mixture is promoted again; powder and liquid are mixed in a continuous feeding mode, the air hammer 11 and the discharging cavity 13 ensure that powder-liquid mixed materials can be continuously discharged from the powder-liquid mixing cavity, and the continuous level of equipment is greatly improved. The equipment can achieve the purpose of improving the uniformity and the quality stability of the catalyst and the adsorbent products, and the continuous operation mode can also improve the production efficiency of the products.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the present invention, many simple modifications can be made to the technical solution of the present invention, for example, the continuous weightlessness scale 1 can be changed to other scales that can be dosed at a constant rate; the pressure atomizing nozzle 9 may be changed to a two-fluid atomizing nozzle; the rotation mode of the driving disc main body 21 can be changed into a mode of introducing high-pressure gas through the gas inlet pipe to blow powder, so that the powder is subjected to dispersive feeding; the number of the pressure atomizing nozzles 9 may also be 1. Including each of the specific features, are combined in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. A powder-liquid mixing apparatus, comprising:
the powder-liquid mixing bin (10) comprises a powder-liquid mixing cavity, and a powder inlet and a liquid inlet which are communicated with the powder-liquid mixing cavity;
the powder dispersing part (7) is arranged at a powder inlet of the powder-liquid mixing bin (10) and is used for dispersing powder into the powder-liquid mixing cavity; and
a liquid atomization piece which is arranged at a liquid inlet of the powder-liquid mixing bin (10) and is used for atomizing liquid,
the flow direction of the powder dispersed by the powder dispersing part is intersected with the flow direction of the liquid atomized by the liquid atomizing part, so that the dispersed powder and the atomized liquid are fully mixed.
2. The powder-liquid mixing apparatus according to claim 1, wherein the powder-liquid mixing bin (10) comprises a top wall and a side wall for defining the powder-liquid mixing chamber, the powder inlet is disposed on the top wall, the liquid inlet is disposed on the side wall, the powder flow direction is in an axial direction of the powder inlet, the liquid flow direction is in an axial direction of the liquid inlet, and an included angle between the axial direction of the powder inlet and the axial direction of the liquid inlet is 0-180 °.
3. The powder-liquid mixing apparatus according to claim 1, wherein the powder dispersing member (7) is a disk-shaped member including a disk main body (21) and a plurality of blades (22), the plurality of blades (22) are provided on an upper surface of the disk main body (21) at intervals in a circumferential direction of the disk main body (21), the powder dispersing member (7) is coaxially provided at the powder inlet and is rotatable about an axis thereof, and the powder-liquid mixing apparatus includes a driving mechanism for driving the disk main body to rotate.
4. The powder-liquid mixing apparatus according to claim 3, wherein the powder-liquid mixing apparatus comprises a powder bin (5), and the powder bin (5) is disposed above the powder-liquid mixing bin (10) and is communicated with the powder inlet.
5. The powder-liquid mixing apparatus according to claim 4, wherein a cone-shaped chamber and a column-shaped chamber which are coaxially communicated are defined in the powder bin (5), the cone-shaped chamber is located above the column-shaped chamber, the powder bin (5) comprises a powder inlet which is communicated with the cone-shaped chamber and a powder outlet which is communicated with the column-shaped chamber, and the powder outlet is configured to coaxially communicate the column-shaped chamber with the powder inlet of the powder-liquid mixing bin (10).
6. The powder-liquid mixing apparatus according to claim 5, wherein the drive mechanism comprises:
the first rotating rod (6) is longitudinally arranged inside the powder bin (5), and the bottom end of the first rotating rod (6) is connected with the top surface of the disc main body;
the second rotating rod (4) transversely extends from the outside of the powder storage bin (5) to the inside of the powder storage bin (5), and one end, located inside the powder storage bin (5), of the second rotating rod (4) is in transmission connection with one end, far away from the disc main body, of the first rotating rod (6) through a gear assembly;
first driving motor (3), the drive shaft of first driving motor (3) with being located of second dwang (4) the outside one end of powder feed bin (5) is connected, first driving motor (3) set up to can drive second dwang (4) are rotated around its self axis, second dwang (4) can pass through the gear assembly drives first dwang (6) are rotated around its self axis.
7. The powder-liquid mixing device according to claim 1, wherein the powder-liquid mixing device comprises a quantitative scale and a feeding pipe (2), the quantitative scale is arranged above the powder bin (5), one end of the feeding pipe (2) is connected with a discharge port of the quantitative scale, and the other end of the feeding pipe extends into the powder bin (5) so as to feed powder into the powder bin (5) at a constant speed.
8. The powder-liquid mixing apparatus according to claim 1, wherein the liquid atomizing member is a pressure-type atomizing nozzle (9), and the powder-liquid mixing apparatus comprises a liquid storage tank (8) and a liquid pump, the pressure-type atomizing nozzle (9) communicating with the liquid storage tank (8) through a pipe, the liquid pump being provided on the pipe, the liquid pump being provided so as to be capable of pressure-feeding the liquid in the liquid storage tank (8) into the pressure-type atomizing nozzle (9) at a constant rate.
9. The powder-liquid mixing apparatus according to claim 8, wherein the powder-liquid mixing apparatus comprises a plurality of pressure-type atomizing nozzles (9), and the plurality of pressure-type atomizing nozzles (9) are uniformly distributed at the upper part of the powder-liquid mixing chamber along the circumferential direction of the powder-liquid mixing bin (10).
10. The powder-liquid mixing apparatus according to any one of claims 1 to 9, comprising a discharging unit including:
the discharging bin is positioned below the powder-liquid mixing bin (10), a discharging cavity (13) is formed in the discharging bin, the discharging cavity (13) is communicated with the bottom of the powder-liquid mixing cavity, and the discharging bin is provided with a discharging opening (16);
the powder rotating disc (15) is arranged at the top of the discharging cavity (13) and corresponds to the discharging hole of the powder-liquid mixing bin (10), the powder rotating disc (15) comprises a rotating disc body (20) and a plurality of dispersing blades (19), and the plurality of dispersing blades (19) are arranged on the rotating disc body (20) at intervals along the circumferential direction of the rotating disc body (20);
and the driving device is connected with the turntable body (20) and is used for driving the powder turntable (15) to rotate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010294671.9A CN113522074A (en) | 2020-04-15 | 2020-04-15 | Powder-liquid mixing equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010294671.9A CN113522074A (en) | 2020-04-15 | 2020-04-15 | Powder-liquid mixing equipment |
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| CN113522074A true CN113522074A (en) | 2021-10-22 |
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