CN116637739A - Multi-spray gun side spraying device for fluidized bed and working method - Google Patents
Multi-spray gun side spraying device for fluidized bed and working method Download PDFInfo
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- CN116637739A CN116637739A CN202310622044.7A CN202310622044A CN116637739A CN 116637739 A CN116637739 A CN 116637739A CN 202310622044 A CN202310622044 A CN 202310622044A CN 116637739 A CN116637739 A CN 116637739A
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- 239000007921 spray Substances 0.000 title claims abstract description 156
- 238000005507 spraying Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 180
- 239000007788 liquid Substances 0.000 claims abstract description 70
- 238000007664 blowing Methods 0.000 claims abstract description 5
- 239000011259 mixed solution Substances 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 59
- 239000000203 mixture Substances 0.000 claims description 31
- 238000005192 partition Methods 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims description 3
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 32
- 238000004891 communication Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 101150006573 PAN1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/16—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Nozzles (AREA)
Abstract
The application relates to the technical field of fluidized beds, in particular to a multi-spray gun side spraying device for a fluidized bed and a working method. The application provides a multi-spray gun side spraying device for a fluidized bed, wherein a material tank bottom plate is fixed at the lower end of a material pot, and a plurality of diversion trenches are formed in the material tank bottom plate along the radial direction; the guide piece is fixed at the axis of the bottom plate of the material tank; a plurality of spray gun seats are arranged along the circumferential direction of the material pot; the inner end of the spray gun system protrudes out of the inner wall of the material pot; after the material is poured into the material pot, air flow is blown into the material pot through the diversion trench; the diversion trench is suitable for guiding the airflow entering the logistics pot and blowing the material to move upwards in a spiral manner; the spray gun system is suitable for spraying the gas-liquid mixed solution to the most dense area of the material movement in the material pot so as to form a uniform film on the surface of the material; through the cooperation of guiding element and material groove bottom plate, stability and homogeneity in the material pot when having improved the air current blowing material also can avoid the material to drop downwards from the guiding gutter simultaneously.
Description
Technical Field
The application relates to the technical field of fluidized beds, in particular to a multi-spray gun side spraying device for a fluidized bed and a working method.
Background
Fluidized bed apparatus has been used in the pharmaceutical industry as a drying device for many years, and as fluidized bed apparatus is improved, fluidized bed apparatus is increasingly used for industrial granulation, preparation of pellets, and coating, mixing, etc., which improves the fluidized bed apparatus for various uses, not only reduces energy consumption but also improves product performance.
The traditional pan spray gun is easy to be blocked, the material finished product particles are uneven, the material is easy to fall off, the harvesting efficiency is low, and the like, so that the research and development of the multi-spray gun side spraying device for the fluidized bed and the working method are necessary.
Disclosure of Invention
The application aims to provide a multi-spray gun side spraying device for a fluidized bed and a working method.
In order to solve the technical problems, the application provides a multi-spray gun side spraying device for a fluidized bed, which comprises:
the material pot is conical, and the inner diameter of the upper end of the material pot is larger than the inner diameter of the lower end of the material pot;
the material tank bottom plate is fixed at the lower end of the material pot, and a plurality of diversion trenches are formed in the material tank bottom plate along the radial direction;
the pressing plate is sleeved on the outer wall of the material tank bottom plate and is suitable for limiting the material tank bottom plate;
the flow guide piece is fixed at the axis of the bottom plate of the material tank;
the spray gun seats are arranged along the circumferential direction of the material pot;
one spray gun system corresponds to one spray gun seat, and the inner end of the spray gun system protrudes out of the inner wall of the material pot; wherein,,
after the material is poured into the material pot, the air flows through the diversion trench and blows into the material pot;
the diversion trench is suitable for guiding airflow entering the logistics pot and blowing the material to move upwards in a spiral manner;
the spray gun system is suitable for spraying gas-liquid mixed solution to the most dense area of material movement in the material pot so as to form a uniform film on the surface of the material.
Preferably, the flow guide member includes: the positioning base is disc-shaped, is fixed on the material tank bottom plate and is coaxially arranged with the material tank bottom plate;
the guide cone is fixed on the positioning base, and the height of the guide cone is larger than the horizontal height of the spray gun system; wherein,,
the air flow flowing into the material pot through the diversion trench is guided by the diversion cone so that the air flow can uniformly flow in the material pot.
Preferably, the spray gun system comprises: the spray gun comprises a spray gun barrel, a liquid inlet pipe, an air inlet pipe, a lock nut and a mixing piece, wherein the liquid inlet pipe is fixed at one end of the spray gun barrel, the air inlet pipe is fixed at one side of the spray gun barrel,
the mixing piece is rotatably arranged in the gun barrel;
the locking nut is rotatably arranged on the spray gun seat, and the end part of the locking nut is abutted with the side wall of the spray gun head pipe; wherein,,
the liquid entering through the liquid inlet pipe and the gas entering through the gas inlet pipe are mixed in the spray gun barrel, and the gas-liquid mixture is suitable for pushing the mixing piece to rotate circumferentially.
Preferably, the mixing piece is disc-shaped, and a sharp corner protrusion is fixed on the mixing piece along the circumferential direction;
the spray gun is characterized in that a limiting groove matched with the sharp corner protrusion is formed in the spray gun barrel body, and the mixing piece is rotatably arranged in the limiting groove.
Preferably, the mixing member is provided with a plurality of mixing grooves along the axial direction, the mixing grooves penetrate through the mixing member, and the mixing grooves are obliquely arranged from one side of the mixing member to the other side, wherein,
and after passing through the mixing groove, the gas-liquid mixture is suitable for pushing the mixing piece to rotate circumferentially relative to the spray gun barrel.
Preferably, the spray gun head pipe is vertically fixed at one end of the spray gun barrel body far away from the liquid inlet pipe, the spray gun head pipe is suitable for being inserted into the spray gun seat, and the spray gun head pipe protrudes into the material pot.
Preferably, a spray head cone is rotatably sleeved at the end part of the spray gun head pipe, a plurality of spray holes are axially formed in the spray head cone, one end of each spray hole is formed in a conical surface of the spray head cone, and the spray direction of each spray hole is consistent with the direction of the rotary air flow.
Preferably, the diversion trench includes: the long guide grooves and the short guide grooves are alternately arranged, a plurality of first partition boards are arranged on the long guide grooves at equal intervals, and the first partition boards are suitable for enabling the long guide grooves to be in a plurality of sections at intervals;
a plurality of second partition boards are arranged on the short guide groove at equal intervals, the second partition boards are suitable for dividing the short guide groove into a plurality of sections, and the first partition boards and the second partition boards are arranged in a staggered mode.
Preferably, the included angle between the diversion trench and the horizontal plane is 25 degrees;
the grooving width of the diversion trench is 0.5mm.
On the other hand, the application also provides a working method of the multi-spray gun side spraying device for the fluidized bed, and after the granular materials are placed in the material pot, a bridging phenomenon is formed between the materials;
the air flow passes through the diversion trench from the lower part of the bottom plate of the material tank to flow upwards, is guided by the diversion trench to form spiral upward air flow in the material pot, and blows the material on the bottom plate of the material tank to move upwards in a spiral manner;
the diversion cone is suitable for guiding the air flow in the material pot to flow stably and uniformly;
the liquid inlet pipe is suitable for conveying raw material liquid into the spray gun barrel, the air inlet pipe is suitable for conveying compressed air into the spray gun barrel, the compressed air and the raw material liquid are mixed in the spray gun barrel, and the mixing piece is pushed to rotate circumferentially, so that the mixing effect between the raw material liquid and the compressed air is improved;
the gas-liquid mixture is sprayed to the material in the material pot through the spray nozzle cone, and when the gas-liquid mixture is sprayed outwards through each spray hole, the gas-liquid mixture is suitable for driving the spray nozzle cone to rotate circumferentially so as to improve the contact area between the gas-liquid mixture and the material.
The multi-spray gun side spraying device for the fluidized bed has the beneficial effects that the stability and the uniformity of the air flow in a material pot when the air flow blows the material are improved through the matching of the guide piece and the material groove bottom plate, and meanwhile, the material can be prevented from falling downwards from the guide groove; the spray gun system improves the mixing effect of the gas-liquid mixture, can avoid the blockage of the spray hole by materials, improves the contact area of the gas-liquid mixture and the materials, and improves the working efficiency and the yield.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a preferred embodiment of a multi-lance side-injection apparatus for a fluidized bed in accordance with the present application;
FIG. 2 is a schematic view of the rotation state of the material in the material pot according to the present application;
FIG. 3 is a perspective view of the spray gun system and spray gun carriage of the present application;
FIG. 4 is an internal cross-sectional view of the spray gun system of the present application;
FIG. 5 is a cross-sectional view of a mixing element of the present application;
FIG. 6 is a perspective view of the material trough floor and baffle of the present application;
FIG. 7 is a longitudinal cross-sectional view of the floor of the chute of the application;
fig. 8 is a top view of the material pot of the present application.
In the figure:
1. a material pot;
2. a flow guide; 21. positioning a base; 22. a diversion cone;
3. a material tank bottom plate; 31. a diversion trench; 32. a long guide groove; 33. a short guide groove; 34. a first separator; 35. a second separator;
4. a pressing plate; 5. a spray gun seat;
6. a lance system; 61. a spray gun barrel; 62. a liquid inlet pipe; 63. an air inlet pipe; 64. a lock nut; 65. a mixing element; 651. the sharp angle is convex; 652. a mixing tank; 66. a lance head tube; 67. a spray head cone; 670. and an injection hole.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In a first embodiment, as shown in fig. 1 to 8, the present application provides a multi-lance side injection apparatus for a fluidized bed, comprising: the fluidized bed device comprises a material pot 1, a flow guiding piece 2, a material pot bottom plate 3, a pressing plate 4, a plurality of spray gun seats 5 and a plurality of spray gun systems 6, wherein the interior of the material pot 1 is hollow, and the material pot 1 is fixed in fluidized bed equipment; the material pot 1 is conical, and the inner diameter of the upper end of the material pot 1 is larger than the inner diameter of the lower end; the material tank bottom plate 3 is fixed at the lower end of the material tank 1, and a plurality of diversion trenches 31 are formed in the material tank bottom plate 3 along the radial direction; the pressing plate 4 is sleeved on the outer wall of the material tank bottom plate 3, and the pressing plate 4 is suitable for limiting the material tank bottom plate 3; the pressing plate 4 is suitable for fixing the material tank bottom plate 3 at the lower end of the material pot 1, and meanwhile, the pressing plate 4 also has the effect of sealing between the material tank bottom plate 3 and the material pot 1; an air flow channel is further arranged below the material pot 1, the air flow channel is suitable for conveying air flow with proper temperature and proper flow into the material pot 1, the air flow is suitable for flowing into the material pot 1 through the guide groove 31, and the air flow entering the material pot 1 can blow materials to move in a spiral shape under the mutual matching and guiding of the guide groove 31 and the guide cone 22, and the guide cone 22 ensures the uniformity of the air flow, and further ensures the uniformity of the materials in the technological process. The flow guide piece 2 is fixed at the axis of the material tank bottom plate 3; the spray gun seats 5 are arranged along the circumferential direction of the material pot 1; the spray gun base 5 is arranged at a specific height in the axial direction of the material pot 1, and when the air flow blows the material in the material pot 1 and moves in a spiral fluctuation manner, the gas-liquid mixture sprayed by the spray gun system 6 can be sprayed to the most dense area of the material movement. A spray gun system 6 corresponds to a spray gun seat 5, and the inner end of the spray gun system 6 protrudes out of the inner wall of the material pot 1; after the material is poured into the material pot 1, a bridging phenomenon can be formed among the material particles, so that the material cannot fall down through the inclined structure of the diversion trench 31; the air flows through the diversion trench 31 and is blown into the material pot 1; the diversion trench 31 is suitable for guiding the airflow entering the logistics pot and blowing the material to move upwards in a spiral manner; because all be provided with first baffle 34 and second baffle 35 in each long guide slot 32 and the short guide slot 33, lead to the special structure that guiding gutter 31 shaping is not linked to each other, the setting of first baffle 34 and second baffle 35 can make the air current quantity that gets into in the material pot 1 more, but this way can lead to getting into the comparatively chaotic of air current in the material pot 1, and the setting of guiding cone 22 has guaranteed that the multistrand air current that gets into in the material pot 1 can be more even, and then has guaranteed the more homogeneity of material and gas-liquid mixture process. The lance system 6 is adapted to inject a gas-liquid mixture to the most dense areas of material movement in the material pan 1 so that a uniform film is formed on the surface of the material. The spraying direction of the spraying hole 670 of the spraying gun system 6 is consistent with the direction of the rotating air flow in the material tank, so that the risk of blockage by materials is avoided; meanwhile, the spray head cone 67 can spray liquid and rotate at the same time, so that the contact area of the gas-liquid mixture sprayed out through the spray head cone 67 and the material is ensured.
The deflector 2 comprises: the positioning base 21 and the diversion cone 22 are in a disc shape, the positioning base 21 is fixed on the material tank bottom plate 3, and the positioning base 21 and the material tank bottom plate 3 are coaxially arranged; the positioning base 21 is fixed on the material tank bottom plate 3 through bolts, the outer diameter of the bottommost end of the guide cone 22 is consistent with the outer diameter of the positioning base 21, and the appearance of the positioning base 21 and the appearance of the guide cone 22 are streamline; the guide cone 22 is fixed on the positioning base 21, and the height of the guide cone 22 is larger than the horizontal height of the spray gun system 6; the air flow flowing into the material pot 1 through the diversion trench 31 is guided by the diversion cone 22 so that the air flow can uniformly flow in the material pot 1. The arrangement of the diversion cone 22 improves the stability and uniformity of the gas entering the material pot 1.
In order to facilitate the feeding of the raw liquid into the cauldron 1, the lance system 6 comprises: the spray gun comprises a spray gun barrel 61, a liquid inlet pipe 62, an air inlet pipe 63, a locking nut 64 and a mixing piece 65, wherein the spray gun barrel 61 is hollow, the liquid inlet pipe 62 is fixed at one end of the spray gun barrel 61, the liquid inlet pipe 62 is suitable for conveying raw material liquid into the spray gun barrel 61, the air inlet pipe 63 is fixed at one side of the spray gun barrel 61, and the air inlet pipe 63 is suitable for conveying compressed air into the spray gun barrel 61; the mixing element 65 is rotatably arranged in the spray gun barrel 61; the lock nut 64 is rotatably arranged on the spray gun seat 5, and the end part of the lock nut 64 is abutted with the side wall of the spray gun head pipe 66; the locking nut 64 improves the stability of the spray gun system 6 when being fixed on the side wall of the material pot 1; wherein, the liquid entering through the liquid inlet pipe 62 and the gas entering through the gas inlet pipe 63 are mixed in the spray gun barrel 61, and the gas-liquid mixture is suitable for pushing the mixing piece 65 to rotate circumferentially; the mixing member 65 rotates circumferentially in the lance cylinder 61 and is adapted to mix and agitate the compressed air and the raw material liquid, thereby improving the mixing effect between the gas and liquid mixture.
In order to achieve the mixing and stirring effect, the mixing piece 65 is disc-shaped, and a sharp-angled protrusion 651 is fixed on the mixing piece 65 along the circumferential direction; each surface of the sharp corner protrusion 651 is a radian surface; a limiting groove matched with the sharp corner protrusion 651 is formed in the spray gun barrel 61, and the inner diameter of the largest part of the limiting groove is larger than the inner diameter of the spray gun barrel 61; the mixing element 65 is rotatably arranged in the limiting groove. The mixing piece 65 is provided with a plurality of mixing grooves 652 along the axial direction, the mixing grooves 652 penetrate through the mixing piece 65, and the mixing grooves 652 are obliquely arranged from one side of the mixing piece 65 to the other side, wherein the gas-liquid mixture passes through the mixing grooves 652 and is suitable for pushing the mixing piece 65 to rotate circumferentially relative to the spray gun barrel 61. After the compressed air and the raw material liquid are initially contacted and mixed in the spray gun barrel 61, the mixed gas-liquid mixture flows to the spray gun through the mixing groove 652 and is thrown into the spray gun along with the circumferential rotation of the mixing piece 65, so that the stirring and mixing effect between the compressed air and the raw material liquid is improved.
In order to increase the contact area between the gas-liquid mixture and the material, the lance head tube 66 is vertically fixed at one end of the lance cylinder 61 far away from the liquid inlet tube 62, the lance head tube 66 is suitable for being inserted into the lance holder 5, the inner end of the lock nut 64 abuts against the side wall of the lance head tube 66, and the lance head tube 66 protrudes into the material pot 1. The end of the spray gun head pipe 66 is rotatably sleeved with a spray head cone 67, a plurality of spray holes 670 are axially formed in the spray head cone 67, one end of each spray hole 670 is formed in a conical surface of the spray head cone 67, and the spray direction of the spray holes 670 is consistent with the direction of the rotary air flow. After the gas-liquid mixture flows into the spray gun head pipe 66 through the spray gun barrel 61, the gas-liquid mixture is sprayed into the material pot 1 through each spray hole 670, and due to the inclined arrangement of the spray holes 670, when the gas-liquid mixture is sprayed out through the spray holes 670, the spray head cone 67 can be driven to circumferentially rotate, through the arrangement, the contact area between the gas-liquid mixture sprayed out from the spray holes 670 and the material in the material pot 1 can be increased, the outlet end of the spray holes 670 is arranged at the conical surface slope of the spray head cone 67, and meanwhile, each spray hole 670 faces the direction of the rotating air flow, so that the material cannot block each spray hole 670. The horizontal height of the spray gun seat 5 is positioned in the area where the material in the material pot 1 moves most densely when the material is blown by the air flow, so that the distance between the material and the material sprayed out by each spray hole 670 is reduced to the minimum, and the material liquid can be well spread on the surface of the material particles to form a film with uniform thickness.
In order to realize the uniform upward spiral fluctuating motion of the material in the material pot 1, the diversion trench 31 comprises: the long guide grooves 32 and the short guide grooves 33 are alternately arranged, a plurality of first partition plates 34 are arranged on the long guide grooves 32 at equal intervals, and the first partition plates 34 are suitable for spacing the long guide grooves 32 into a plurality of sections; a plurality of second partition plates 35 are arranged on the short guide groove 33 at equal intervals, the second partition plates 35 are suitable for dividing the short guide groove 33 into a plurality of sections, and the first partition plates 34 and the second partition plates 35 are arranged in a staggered mode. The included angle between the diversion trench 31 and the horizontal plane is 25 degrees; the grooving width of the diversion trench 31 is 0.5mm. The edge end point of the first long guide groove 32 on the material groove bottom plate 3 is arranged on the intersection point of the central line of the material groove bottom plate 3 and the outer wall of the positioning base 21, and the anticlockwise included angle between the edge passing through the long guide groove 32 and the central line of the material groove bottom plate 3 is 18 degrees; at the same time, an inclined included angle is formed between each diversion trench 31 and the horizontal plane of the material tank bottom plate 3, and preferably, the included angle is 25 degrees. In order to avoid the material falling down from the inside of the diversion trench 31, the width of the diversion trench 31 is 0.5mm.
In a second embodiment, based on the first embodiment, the present embodiment further provides a method for operating a multi-spray gun side spraying device for a fluidized bed, which includes the multi-spray gun side spraying device for a fluidized bed as described in the first embodiment, specifically, the method for operating the multi-spray gun side spraying device for a fluidized bed includes the following steps:
after the granular materials are placed in the material pot 1, the materials form a bridging phenomenon;
the air flow passes through the diversion trench 31 from the lower part of the material tank bottom plate 3 to flow upwards, is guided by the diversion trench 31 to form spiral upward air flow in the material tank 1, and blows the material on the material tank bottom plate 3 to move upwards in a spiral manner;
the diversion cone 22 is suitable for guiding the air flow in the material pot 1 to flow smoothly and uniformly;
the liquid inlet pipe 62 is adapted to convey raw material liquid into the spray gun barrel 61, the air inlet pipe 63 is adapted to convey compressed air into the spray gun barrel 61, the compressed air and the raw material liquid are mixed in the spray gun barrel 61, and the mixing piece 65 is pushed to rotate circumferentially, so that the mixing effect between the raw material liquid and the compressed air is improved;
the gas-liquid mixture is sprayed to the material in the material pot 1 through the spray head cone 67, and when the gas-liquid mixture is sprayed outwards through each spray hole 670, the gas-liquid mixture is suitable for driving the spray head cone 67 to rotate circumferentially so as to improve the contact area between the gas-liquid mixture and the material.
The components (components not illustrating the specific structure) selected in the present application are common standard components or components known to those skilled in the art, and the structures and principles thereof are known to those skilled in the art through technical manuals or through routine experimental methods. Moreover, the software program related to the application is the prior art, and the application does not relate to any improvement on the software program.
In the description of embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
With the above-described preferred embodiments according to the present application as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. A multi-lance side-injection apparatus for a fluidized bed, comprising:
the automatic feeding device comprises a material pot (1), a flow guide piece (2), a material pot bottom plate (3), a pressing plate (4), a plurality of spray gun seats (5) and a plurality of spray gun systems (6), wherein the material pot (1) is conical, and the inner diameter of the upper end of the material pot (1) is larger than the inner diameter of the lower end of the material pot;
the material tank bottom plate (3) is fixed at the lower end of the material tank (1), and a plurality of diversion trenches (31) are formed in the material tank bottom plate (3) along the radial direction;
the pressing plate (4) is sleeved on the outer wall of the material tank bottom plate (3), and the pressing plate (4) is suitable for limiting the material tank bottom plate (3);
the flow guide piece (2) is fixed at the axis of the material tank bottom plate (3);
the spray gun seats (5) are circumferentially arranged along the material pot (1);
a spray gun system (6) corresponds to a spray gun seat (5), and the inner end of the spray gun system (6) protrudes out of the inner wall of the material pot (1); wherein,,
after the material is poured into the material pot (1), the air flow is blown into the material pot (1) through the diversion trench (31);
the diversion trench (31) is suitable for guiding airflow entering the logistics pot and blowing the material to move upwards in a spiral manner;
the spray gun system (6) is suitable for spraying gas-liquid mixed solution to the most dense area of material movement in the material pot (1) so as to form a uniform film on the surface of the material.
2. A multi-lance side-injection apparatus for a fluidized bed according to claim 1, wherein,
the deflector (2) comprises: the positioning base (21) is disc-shaped, the positioning base (21) is fixed on the material tank bottom plate (3), and the positioning base (21) and the material tank bottom plate (3) are coaxially arranged;
the guide cone (22) is fixed on the positioning base (21), and the height of the guide cone (22) is larger than the horizontal height of the spray gun system (6); wherein,,
the air flow flowing into the material pot (1) through the diversion trench (31) is guided by the diversion cone (22) so that the air flow can uniformly flow in the material pot (1).
3. A multi-lance side-injection apparatus for a fluidized bed according to claim 2, wherein,
the lance system (6) comprises: the spray gun comprises a spray gun barrel (61), a liquid inlet pipe (62), an air inlet pipe (63), a lock nut (64) and a mixing piece (65), wherein the liquid inlet pipe (62) is fixed at one end of the spray gun barrel (61), the air inlet pipe (63) is fixed at one side of the spray gun barrel (61),
the mixing piece (65) is rotatably arranged in the spray gun barrel (61);
the lock nut (64) is rotatably arranged on the spray gun seat (5), and the end part of the lock nut (64) is abutted with the side wall of the spray gun head pipe (66); wherein,,
liquid entering through a liquid inlet pipe (62) and gas entering through an air inlet pipe (63) are mixed in a spray gun barrel (61), and the gas-liquid mixture is suitable for pushing the mixing piece (65) to rotate circumferentially.
4. A multi-lance side-injection apparatus for a fluidized bed according to claim 3, wherein,
the mixing piece (65) is disc-shaped, and a sharp corner protrusion (651) is fixed on the mixing piece (65) along the circumferential direction;
a limiting groove matched with the sharp corner protrusion (651) is formed in the spray gun barrel (61), and the mixing piece (65) is rotatably arranged in the limiting groove.
5. A multi-lance side-injection apparatus for a fluidized bed according to claim 4, wherein,
the mixing piece (65) is provided with a plurality of mixing grooves (652) along the axial direction, the mixing grooves (652) penetrate through the mixing piece (65), the mixing grooves (652) are obliquely arranged from one side of the mixing piece (65) to the other side, wherein,
after passing through the mixing groove (652), the gas-liquid mixture is suitable for pushing the mixing piece (65) to rotate circumferentially relative to the spray gun cylinder (61).
6. A multi-lance side-injection apparatus for a fluidized bed according to claim 5, wherein,
the spray gun head pipe (66) is vertically fixed at one end of the spray gun barrel (61) far away from the liquid inlet pipe (62), the spray gun head pipe (66) is suitable for being inserted into the spray gun seat (5), and the spray gun head pipe (66) protrudes into the material pot (1).
7. A multi-lance side-injection apparatus for a fluidized bed according to claim 6, wherein,
the spray gun is characterized in that a spray head cone (67) is sleeved at the end part of the spray gun head pipe (66) in a rotatable mode, a plurality of spray holes (670) are axially formed in the spray head cone (67), one end of each spray hole (670) is formed in a conical surface of the spray head cone (67), and the spray direction of each spray hole (670) is consistent with the direction of the rotary air flow.
8. A multi-lance side-injection apparatus for a fluidized bed according to claim 7, wherein,
the diversion trench (31) includes: the long guide grooves (32) and the short guide grooves (33) are alternately arranged, a plurality of first partition plates (34) are arranged on the long guide grooves (32) at equal intervals, and the first partition plates (34) are suitable for separating the long guide grooves (32) into a plurality of sections;
a plurality of second partition plates (35) are arranged on the short guide grooves (33) at equal intervals, the second partition plates (35) are suitable for dividing the short guide grooves (33) into a plurality of sections, and the first partition plates (34) and the second partition plates (35) are arranged in a staggered mode.
9. A multi-lance side-injection apparatus for a fluidized bed according to claim 8, wherein,
the included angle between the diversion trench (31) and the horizontal plane is 25 degrees;
the grooving width of the diversion trench (31) is 0.5mm.
10. A method for operating a multi-lance side-injection apparatus for a fluidized bed, comprising a multi-lance side-injection apparatus for a fluidized bed as set forth in claim 9,
after the granular materials are placed in the material pot (1), the materials form a bridging phenomenon;
the air flow passes through the diversion trench (31) from the lower part of the material tank bottom plate (3) to flow upwards, is guided by the diversion trench (31) to form spiral upward air flow in the material tank (1), and blows the material on the material tank bottom plate (3) to move upwards in a spiral manner;
the diversion cone (22) is suitable for guiding the air flow in the material pot (1) to flow stably and uniformly;
the liquid inlet pipe (62) is suitable for conveying raw material liquid into the spray gun barrel (61), the air inlet pipe (63) is suitable for conveying compressed air into the spray gun barrel (61), the compressed air and the raw material liquid are mixed in the spray gun barrel (61), and the mixing piece (65) is pushed to rotate circumferentially so as to improve the mixing effect between the raw material liquid and the compressed air;
the gas-liquid mixture is sprayed to the material in the material pot (1) through the spray head cone (67), and when the gas-liquid mixture is sprayed outwards through each spray hole (670), the gas-liquid mixture is suitable for driving the spray head cone (67) to rotate circumferentially so as to improve the contact area between the gas-liquid mixture and the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310622044.7A CN116637739A (en) | 2023-05-30 | 2023-05-30 | Multi-spray gun side spraying device for fluidized bed and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310622044.7A CN116637739A (en) | 2023-05-30 | 2023-05-30 | Multi-spray gun side spraying device for fluidized bed and working method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116637739A true CN116637739A (en) | 2023-08-25 |
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ID=87643044
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310622044.7A Pending CN116637739A (en) | 2023-05-30 | 2023-05-30 | Multi-spray gun side spraying device for fluidized bed and working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116637739A (en) |
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2023
- 2023-05-30 CN CN202310622044.7A patent/CN116637739A/en active Pending
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