CN216432259U - Fluidized bed drying device - Google Patents
Fluidized bed drying device Download PDFInfo
- Publication number
- CN216432259U CN216432259U CN202122680271.4U CN202122680271U CN216432259U CN 216432259 U CN216432259 U CN 216432259U CN 202122680271 U CN202122680271 U CN 202122680271U CN 216432259 U CN216432259 U CN 216432259U
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- CN
- China
- Prior art keywords
- air
- fluidized bed
- distribution plate
- bed drying
- air distribution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001035 drying Methods 0.000 title claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims 3
- 238000007599 discharging Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 239000004429 Calibre Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000011343 solid material Substances 0.000 description 22
- 229910052939 potassium sulfate Inorganic materials 0.000 description 20
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 19
- 235000011151 potassium sulphates Nutrition 0.000 description 19
- 238000001816 cooling Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 238000009423 ventilation Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000002475 laxative effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a fluidized bed drying device, which comprises a housin, the grid plate, be provided with the feed inlet on the lateral wall of casing, be provided with the discharge gate on another lateral wall of the casing relative with the feed inlet, the grid plate level sets up in the casing inner chamber, the grid plate be sealing connection with the casing inner chamber all around, a serial communication port, feed inlet department is equipped with the toper hopper in the drying chamber, the heavy-calibre one end of toper hopper and the bottom fixed connection of feed inlet, the small-bore one end of toper hopper is towards the grid plate, the below of toper hopper still is equipped with the baffle of slope, the baffle is provided with a plurality ofly, a plurality of baffles are interval cross arrangement in proper order from top to bottom, form the clearance of material process between the two adjacent baffles, the baffle all is fixed in on the casing lateral wall. The utility model discloses a fluidized bed drying device can effectively solve the problem that the material cohered, improves the drying efficiency and the quality of fluidized bed.
Description
Technical Field
The utility model relates to a fluidized bed drying equipment field. More specifically, the utility model relates to a fluidized bed drying device.
Background
Potassium sulfate is an inorganic salt with chemical formula K2SO4Usually colorless or white crystals, granules or powders, odorless, bitter, hard, chemically stable, melting point1069 deg.C. Potassium sulfate is a basic raw material for producing various potassium salts such as potassium carbonate, potassium persulfate and the like, is used as a clarifier in the glass industry, is used as an intermediate in the dye industry, is used as an aid and the like in the perfume industry, is used as a laxative in the pharmaceutical industry, treats soluble barium salt poisoning and the like, and is a commonly used potassium fertilizer in agriculture.
The drying of potassium sulfate usually adopts the mode of fluidized bed drying, the principle of fluidized bed drying is to add the particulate solid material into the fluidized bed dryer from the charging means, the filtered clean air is sent into the bottom of the fluidized bed by the air blower after being heated and contacts with the solid material through the distribution plate to form the fluidized state to achieve the heat and mass exchange of gas and solid, the material is discharged from the discharge outlet after being dried, and the waste gas is discharged from the top of the fluidized bed, and is emptied after the solid powder is recovered by the cyclone dust collector group and the bag-type dust collector.
Traditional fluidized bed dryer, air get into the back because of the sudden magnification of fluidized bed inner space, make it can relax with the contact force of fixed material, often because of not timely effectual drying, cause the bed of material to cohere because of the dead weight, when appearing the material and cohering, can be because of the material granule after cohering is too big, and cause the phenomenon of drying incomplete.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fluidized bed drying device can effectively solve above-mentioned problem, the utility model discloses a fluidized bed drying device can effectively solve the problem that the material cohered, improves the drying efficiency and the quality of fluidized bed.
In order to achieve these objects and other advantages in accordance with the present invention, there is provided a fluidized bed drying apparatus comprising a housing, an air distributor, a feed inlet disposed on one side wall of the housing, and a discharge outlet disposed on the other side wall of the housing opposite to the feed inlet, the air distributor being horizontally disposed in the inner cavity of the housing, the periphery of the air distributor being hermetically connected to the inner cavity of the housing, wherein the inner cavity of the housing above the air distributor is a drying chamber, and the inner cavity of the housing below the air distributor is an air inlet chamber, the fluidized bed drying apparatus being characterized in that a tapered hopper is disposed at the feed inlet of the drying chamber, one end of the tapered hopper having a large diameter is fixedly connected to the bottom end of the feed inlet, one end of the tapered hopper having a small diameter faces the air distributor, a plurality of inclined baffles are disposed below the tapered hopper, the plurality of baffles are sequentially arranged in a staggered manner from top to bottom, a gap for the materials to pass through is formed between every two adjacent baffles, and the baffles are fixed on the side wall of the shell.
It is preferable that: the air distribution plate is provided with a plurality of air vent holes, the air vent holes are vertical straight hole holes, and the cross section of each air vent hole is circular.
It is preferable that: the top end of the ventilation hole is provided with a blast cap, the blast cap comprises a main pipe, the bottom end of the main pipe is communicated with the ventilation hole, the top end of the main pipe is closed, the side wall of the main pipe is provided with a plurality of branch pipes, and the branch pipes are communicated with the main pipe.
It is preferable that: the included angle formed by the branch pipe and the main pipe in the airflow direction is set to be 30-60 degrees.
It is preferable that: the air inlet chamber is internally provided with a plurality of air inlet pipes which are vertical to the air distribution plate, each air inlet pipe comprises a hot air pipe and a cold air pipe, the cold air pipes are arranged on one side of the discharge port, and a partition is arranged between the hot air pipe area and the cold air pipe area.
It is preferable that: the drying chamber is also internally provided with a heat insulation plate which is positioned between the outlet of the hot air pipe and the outlet of the cold air pipe and is vertical to the air distribution plate, the heat insulation plate is fixed on the side wall of the shell, and a space is arranged between the periphery of the heat insulation plate and the inner wall of the shell.
It is preferable that: the heat insulation plate is provided with a plurality of through holes.
It is preferable that: still include the vibrating motor subassembly, the vibrating motor subassembly is installed in the below of the interior grid plate of casing.
The utility model discloses at least, include following beneficial effect:
1. the utility model discloses a fluidized bed drying device, the feed inlet below sets up multilayer inclined baffle, makes solid material follow in the feed inlet gets into fluidized bed drying device's drying chamber at first through the striking with multilayer inclined baffle then fall to the grid plate top, the cohering of material when effectively preventing the feeding.
2. The utility model discloses a fluidized bed drying device, the pore top of ventilating on the grid plate is provided with the hood, is provided with the branch pipe of slope on the hood lateral wall, and when the hood branch pipe blowout of gas flow through, the air current between the double-phase adjacent hood forms alternately and the cross-flow, has reinforceed double-phase fluidization of gas-solid and turbulent motion, effectively prevents that the material from cohering.
3. The utility model discloses a fluidized bed drying device adds the heat insulating board between heating region and the cooling zone in the fluidized bed drying chamber, reduces the hot-air that gets into the cooling zone, improves the cooling efficiency of the solid material of discharge gate, and is effective energy-conserving.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of the fluidized bed drying device of the present invention.
Fig. 2 is a schematic structural view of the air distribution plate of the fluidized bed drying device of the present invention.
Fig. 3 is a schematic diagram of the thermal insulation board structure of the fluidized bed drying device of the present invention.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can implement the invention with reference to the description.
As shown in the figure 1-2, the utility model provides a fluidized bed drying device, which comprises a shell 1 and an air distribution plate 2, wherein a side wall of the shell 1 is provided with a feed port 3, the other side wall of the shell 1 opposite to the feed port 3 is provided with a discharge port 4, the air distribution plate 2 is horizontally arranged in an inner cavity of the shell, the periphery of the air distribution plate 2 is hermetically connected with the inner cavity of the shell, wherein, the inner cavity of the shell above the air distribution plate 2 is a drying chamber, the inner cavity of the shell below the air distribution plate 2 is an air inlet chamber, a conical hopper 5 is arranged at the feed port 3 in the drying chamber, the large-caliber end of the conical hopper 5 is fixedly connected with the bottom end of the feed port 3, the small-caliber end of the conical hopper 5 faces the air distribution plate 2, the inclined baffle 6 is also arranged below the conical hopper 5, the baffle 6 is provided with 3 baffles, and the 3 baffles 6 are sequentially arranged at intervals in a crossed way from top to bottom, a gap for materials to pass through is formed between every two adjacent baffles 6, and the baffles 6 are fixed on the side wall of the shell 1.
In the technical scheme, during the drying process of potassium sulfate, granular potassium sulfate solid materials are firstly added into a drying chamber from a feed inlet 3, the potassium sulfate solid materials fall onto baffle plates 6 through the feed inlet 3 and then fall onto an air distribution plate 2 through a gap between two adjacent baffle plates 6, hot air flow sent by an air blower (not shown in the figure) in an air inlet chamber is distributed by the air distribution plate 2 from bottom to top and then fully contacts with the potassium sulfate solid materials above the air distribution plate 2, the potassium sulfate solid materials form a fluidized state in the drying chamber, so that heat and mass exchange is carried out between air and solid phases to dry the potassium sulfate solid materials, when the dried potassium sulfate solid materials move to a discharge port end, cold air introduced into the air inlet chamber is cooled and then discharged from a discharge port 4, and dried potassium sulfate solid particle products are obtained, waste gas is discharged from a top outlet of the drying chamber, and solid powder is recycled through a cyclone dust collector group and a cloth bag dust collector and then emptied (the prior art, not shown in the figure).
In the fluidized bed drying device, 3 layers of inclined baffles 6 are arranged below the feed inlet 3, and potassium sulfate solid materials collide with the three layers of baffles 6 in the falling process, so that the potassium sulfate solid materials can be effectively prevented from being bonded; the bottom end of the feeding hole 3 is provided with a conical hopper 5 to control the flow of the feeding hole and avoid the overlarge feeding flow from blocking the gap between the baffles 6.
In another technical scheme, a plurality of air vent channels 201 are arranged on the air distribution plate 2, the air vent channels 201 are vertical straight hole channels, and the cross section of each air vent channel 201 is circular.
Among the above-mentioned technical scheme, be provided with multirow venthole 210 on the air distribution plate 2 for evenly distributed air current makes fully contact between hot-air and the potassium sulphate solid material, improves drying efficiency, and venthole 201 sets up to vertical straight hole pore, and the venthole 201 cross section sets up to circular, and circular straight hole pore reduces the resistance when the air passes through, effective energy-conservation and simple structure workable.
In another technical scheme, a blast cap 11 is arranged at the top end of the ventilation duct 201, the blast cap 11 includes a main pipe 111, the main pipe 111 is cylindrical, the bottom end of the main pipe 111 is communicated with the ventilation duct 201, the top end of the main pipe 111 is sealed by a conical pipe cap 113, the radius length of the conical bottom surface of the pipe cap 113 is greater than the projection length of the branch pipe 112 on the grid plate 2, 4 branch pipes 112 are uniformly arranged on the circumferential direction of the side wall of the main pipe 111, and the branch pipes 112 are communicated with the main pipe 111.
The branch pipes 112 are obliquely arranged, and the included angle formed between the branch pipes 112 and the main pipe 111 in the airflow direction is set to be 45 degrees.
In the technical scheme, air flows through the ventilation hole 201 to enter the main pipe 111 of the blast caps 11 and is sprayed out through the branch pipes 112 on the main pipe 111 to contact with the potassium sulfate solid materials in the drying chamber, and the branch pipes 112 are obliquely arranged at 45 degrees, so that the flowing direction of the air flow is changed, the air flow between two adjacent blast caps 11 forms intersection and cross flow, the fluidization and turbulence of gas and solid phases are strengthened, and the adhesion of the potassium sulfate solid materials is effectively prevented.
In another technical scheme, a plurality of air inlet pipes perpendicular to the air distribution plate 2 are arranged in the air inlet chamber, each air inlet pipe comprises a hot air pipe 7 and a cold air pipe 8, the cold air pipe 8 is arranged on one side of the discharge port 4, and a partition 12 is arranged between the area of the hot air pipe 7 and the area of the cold air pipe 8.
The drying chamber is also internally provided with a heat insulation plate 9, the heat insulation plate 9 is positioned between the outlet of the hot air pipe 7 and the outlet of the cold air pipe 8 and is vertical to the air distribution plate 2, the heat insulation plate 9 is fixed on the side wall of the shell 1, and the periphery of the heat insulation plate 9 and the inner wall of the shell 1 are spaced.
The heat insulation plate 9 is provided with a plurality of through holes 901.
Among the above-mentioned technical scheme, hot-blast main 7 is used for letting in hot-air and solid material and carries out the heat exchange with dry material, cold-blast main 8 is used for letting in cold-air and cools off solid material, 7 exports of hot-blast main and 8 exports junctions of cold-blast main in the drying chamber are provided with a heat insulating board 9, heat insulating board 9 is used for reducing hot-air admission cooling area, heat insulating board 9 all around and be equipped with the interval between the inner wall of casing 1, form the clearance that solid material passes through, and be provided with a plurality of through-holes 901 on the heat insulating board, be used for solid material to pass and get into cooling area. The heating area and the cooling area in the drying chamber are separated, so that hot air entering the cooling area is reduced, the cooling efficiency of the solid material at the discharge port is improved, and energy can be effectively saved.
In another technical scheme, the wind distribution device further comprises a vibration motor assembly 10, wherein the vibration motor assembly 10 is installed below the wind distribution plate 2 in the shell 1. Because the solid potassium sulfate materials have fine granularity and are easy to be bonded into blocks, the solid potassium sulfate materials jump and advance on the air distribution plate 2 under the action of the exciting force provided by the vibration motor component 10, the solid materials are in a suspension state under the dual actions of the vibration force and the air flow passing through the air distribution plate 2, and the particles of the solid materials and the hot medium are violently turbulent, so that the heat transfer and mass transfer processes are strengthened, the solid potassium sulfate materials are not easy to be bonded into blocks, the drying efficiency is effectively improved, and the energy is effectively saved.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (8)
1. The fluidized bed drying device comprises a shell and an air distribution plate, wherein a feeding hole is formed in one side wall of the shell, the other side wall of the shell opposite to the feeding hole is provided with a discharging hole, the air distribution plate is horizontally arranged in the inner cavity of the shell, the periphery of the air distribution plate is hermetically connected with the inner cavity of the shell, wherein, the inner cavity of the shell above the air distribution plate is a drying chamber, the inner cavity of the shell below the air distribution plate is an air inlet chamber, it is characterized in that a conical hopper is arranged at the feed inlet in the drying chamber, the large-caliber end of the conical hopper is fixedly connected with the bottom end of the feed inlet, the small-caliber end of the conical hopper faces the air distribution plate, the below of toper hopper still is equipped with the baffle of slope, the baffle is provided with a plurality ofly, and a plurality of baffles are from top to bottom interval cross arrangement in proper order, form the clearance of material process between the two adjacent baffles, the baffle all is fixed in on the casing lateral wall.
2. The fluidized bed drying apparatus as claimed in claim 1, wherein said air distribution plate is provided with a plurality of aeration holes, said aeration holes are provided as vertical straight holes, and the cross section of said aeration holes is circular.
3. The fluidized bed drying apparatus as claimed in claim 2, wherein said air vent is provided at a top end thereof with a funnel cap, said funnel cap including a main tube, a bottom end of said main tube communicating with said air vent and a top end thereof being closed, a side wall of said main tube being provided with a plurality of branch tubes, said branch tubes communicating with the main tube.
4. The fluidized bed drying apparatus as claimed in claim 3, wherein an angle formed by the branch pipes and the main pipe in the gas flow direction is set to be 30 ° to 60 °.
5. The fluidized bed drying apparatus as claimed in claim 1, wherein a plurality of air inlet pipes are disposed in the air inlet chamber and are perpendicular to the air distribution plate, the air inlet pipes comprise a hot air pipe and a cold air pipe, wherein the cold air pipe is disposed at one side of the outlet, and a partition is disposed between the hot air pipe region and the cold air pipe region.
6. The fluidized bed drying apparatus according to claim 5, wherein a heat insulation plate is further disposed in the drying chamber, the heat insulation plate is disposed between the outlet of the hot air duct and the outlet of the cold air duct and perpendicular to the air distribution plate, the heat insulation plate is fixed on the sidewall of the casing, and a space is provided between the periphery of the heat insulation plate and the inner wall of the casing.
7. The fluidized bed drying apparatus as set forth in claim 6, wherein the heat insulating plate is provided with a plurality of through holes.
8. The fluid bed drying apparatus as set forth in claim 1, further comprising a vibration motor assembly mounted within the housing below the air distribution plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122680271.4U CN216432259U (en) | 2021-11-04 | 2021-11-04 | Fluidized bed drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122680271.4U CN216432259U (en) | 2021-11-04 | 2021-11-04 | Fluidized bed drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216432259U true CN216432259U (en) | 2022-05-03 |
Family
ID=81335437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122680271.4U Expired - Fee Related CN216432259U (en) | 2021-11-04 | 2021-11-04 | Fluidized bed drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216432259U (en) |
-
2021
- 2021-11-04 CN CN202122680271.4U patent/CN216432259U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220503 |