CN202246121U - Fluidized bed - Google Patents
Fluidized bed Download PDFInfo
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- CN202246121U CN202246121U CN2011203437888U CN201120343788U CN202246121U CN 202246121 U CN202246121 U CN 202246121U CN 2011203437888 U CN2011203437888 U CN 2011203437888U CN 201120343788 U CN201120343788 U CN 201120343788U CN 202246121 U CN202246121 U CN 202246121U
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- bed
- cylindrical shell
- fluidized
- plate
- pipe
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Abstract
The utility model discloses a fluidized bed, which comprises a vertically extending cylinder. An exhaust pipe is arranged on the upper portion of the cylinder, a base bed is arranged on the inner lower portion of the cylinder, a reaction cavity is enclosed by the base bed and a portion of the cylinder positioned above the base bed, a gas delivery pipe is arranged below the base bed on the cylinder, the base bed comprises a lower air distribution plate, a gas delivery channel for communicating the gas delivery pipe with the reaction cavity is arranged on the lower air distribution plate, an upper feeding pipe and a lower discharging pipe are arranged on the cylinder, a separation bed for dividing an inner cavity of the reaction cavity into an upper reaction cavity and a lower reaction cavity is fixedly arranged above the base bed in the cylinder, the separation bed comprises an upper air distribution plate provided with a plurality of vent holes for communicating the upper reaction cavity and the lower reaction cavity, the upper feeding pipe is positioned above the separation bed, the lower discharging pipe is positioned below the separation bed, and charging channels for communicating the upper reaction cavity and the lower reaction cavity are arranged inside and/or outside the cylinder.
Description
Technical field
The utility model relates to a kind of fluidized-bed.
Background technology
The structure of the fluidized-bed of existing production ALUMNIUM FLUORIDE is as shown in Figure 1; This fluidized-bed comprises the cylindrical shell 2 that extends along the vertical direction; Be provided with the vapor pipe 1 that is connected with the reaction cavity of barrel at the top of cylindrical shell 2; Be provided with at the middle part of cylindrical shell 2 and be used for feed-pipe 3 on cylindrical shell input white lake solid reaction raw material; Be provided with the bottom discharge pipe 6 that is used for the resulting finished product ALUMNIUM FLUORIDE output of reaction in the bottom of cylindrical shell 2, below the intersection of bottom discharge pipe and cylinder inboard wall face, be set with basic bed 5 on the inner-wall surface of cylindrical shell 2, this basis bed 5 comprises that one is fixed on the air distribution plate on the cylinder inboard wall face; On air distribution plate, be furnished with a plurality of ventilating pits; On air distribution plate, also be provided with cap structure corresponding to each ventilating pit, cylindrical shell 2 be positioned at bed 5 below be provided with inverted cone 7, the side housing of cone is provided with the pneumatic tube 8 that is used to import hydrogen fluoride gas that is connected with cylinder lumen.Above bed, also be provided with the manhole 4 of being convenient to observe the cylindrical shell internal-response on the cylindrical shell.But existing ALUMNIUM FLUORIDE fluidized-bed only has a reaction bed, and the contact reacts time of gas-solid mixture lacks like this, and the reaction in fluidized-bed is insufficient, influences aluminium fluoride product output and quality.
The utility model content
The purpose of the utility model is to provide a kind of gas-solid mixture fluidized-bed of duration of contact that prolongs, and is insufficient and influence the technical problem of quality product to solve gas-solid mixture reaction in the fluidized-bed of the prior art.
For realizing above-mentioned purpose; The fluidized-bed that the utility model provided adopts following technical scheme: a kind of fluidized-bed, comprise the cylindrical shell that extends along the vertical direction, and be provided with vapor pipe on cylindrical shell top; The bottom is provided with basic bed in the cylindrical shell; The part that is positioned at basic bed top of basis bed and cylindrical shell surrounds reaction cavity, is provided with pneumatic tube in basic bed below on the cylindrical shell, and said basic bed comprises air distribution plate; Following air distribution plate is provided with the gas distribution channel that is communicated with said pneumatic tube and said reaction cavity; Be provided with the last feed-pipe of input reaction raw materials and the bottom discharge pipe of output finished product from top to bottom in basic bed top on the cylindrical shell, be installed with the separation bed that the inner chamber of said reaction cavity is separated into upper and lower reaction chamber in basic bed top in the described cylindrical shell, separate bed and comprise a upper wind plate; Upper wind plate is provided with the ventilating pit of the said upper and lower reaction chamber of a plurality of connections; The said feed-pipe of going up is positioned at and separates the bed top, and said bottom discharge pipe is positioned at separates the bed below, in the said cylindrical shell and/or the cylindrical shell peripheral hardware be useful on and be communicated with the said blanking channel of two reaction chambers up and down.
The described upper and lower that is positioned at the outer blanking channel of cylindrical shell correspondence respectively is fixed on the cylindrical shell, the upper and lower port of blanking channel corresponding respectively with said cylindrical shell in the corresponding connection of upper and lower reaction chamber.
Be provided with in the described blanking channel and be used for the gas-solid mixture of last reaction chamber is carried the helix transporting device in the downward reaction chamber, this bolt e Foerderanlage comprises the screw-conveyer-shaft that driven by PWR PLT and the packing auger blade that rotates with screw-conveyer-shaft that is arranged on the screw-conveyer-shaft.
Described separation bed also comprises the bracing frame that is used for the support fixation upper wind plate that is installed on the inner-wall surface.
Described bracing frame comprises the conical ring flat-plate that the said above-below direction in axial edge extends, and the bigger diameter end of conical ring flat-plate is fixed on the cylinder inboard wall face, its miner diameter end supports short circuit through the outer cylindrical of axially extending along said above-below direction and is fixedly connected with upper wind plate.
Described separation bed also comprises the reinforcing structure that is used to strengthen separating the bed bulk strength; This reinforcing structure comprises the web plate that is positioned at the upper wind plate below; Web plate supports short circuit through the inner cylindrical of axially extending along the vertical direction and is fixedly connected with upper wind plate, and web plate supports on the short circuit through being fixedly connected on said outer cylindrical around a plurality of reinforcement gussets that circumferentially are distributed on the inner cylindrical support short circuit outside.
Gas distribution channel on the described down air distribution plate comprises and is arranged on a plurality of transfer ports that are distributed in down on the air distribution plate, is being provided with cap structure corresponding to each transfer port descending on the air distribution plate.
Be provided with down feed-pipe with the said corresponding part of reaction chamber down on the described cylindrical shell, said feed-pipe down is positioned at the top of said bottom discharge pipe.
Be provided with manhole with the said corresponding part of reaction chamber that goes up on the described cylindrical shell, this manhole is positioned at the top of separating bed.
The beneficial effect of the utility model is: comprise the basic bed of bottom and the separation bed on top in the fluidized-bed that the utility model provided; The separation bed is separated into two reaction chambers up and down with the inner chamber of reaction cavity, and on the upper wind plate of separating bed, is provided with the ventilating pit that is communicated with upper and lower two reaction chambers, and is provided with the blanking channel that is communicated with upper and lower two reaction chambers; In the reaction chamber that makes progress through last feed-pipe, import the solid reaction raw material like this; And through pneumatic tube when in described reaction cavity inner chamber, import hydrogen fluoride gas, hydrogen fluoride gas gets into to be gone up back in the reaction chamber and carries out contact reacts with solid material on the separation bed, and the tail gas that is produced is drained through vapor pipe; Ventilating pit and the blanking channel of the gas-solid mixture that reacts resulting finished product ALUMNIUM FLUORIDE and do not have a reaction on upper wind plate carries out secondary reaction after getting on the basic bed in the reaction chamber down; The resulting cost ALUMNIUM FLUORIDE in reaction back is exported through the bottom discharge pipe, thereby has prolonged the duration of contact of gas-solid mixture, makes that the entire reaction in the fluidized-bed is more thorough; Finished product purity is higher; Saved gas consumption simultaneously, it is few to contain gas vol in the tail gas, more environmental protection.
Description of drawings
Fig. 1 is the structural representation of existing a kind of fluidized-bed;
Fig. 2 is the structural representation of a kind of embodiment of the fluidized-bed that provides of the utility model;
Fig. 3 is the A place enlarged view among Fig. 2;
Fig. 4 is the part distribution schematic diagram of the upper wind plate upper vent hole of the separation bed among Fig. 2.
Embodiment
Like Fig. 2, Fig. 3, shown in Figure 4; A kind of embodiment of fluidized-bed; Fluidized-bed among this embodiment comprises along the vertical direction the cylindrical shell 12 that extends, and is provided with the vapor pipe 11 that is used for discharging the chemical reaction institute output tail gas that fluidized-bed carries out on the top of cylindrical shell 12, in cylindrical shell 12, is furnished with successively from top to bottom and separates bed 20 and basic bed 15; The basis bed is positioned at the cylindrical shell bottom; Basis bed 15 surrounds air feed solid mixture contact reacts reaction cavity with the part of the basic bed of being positioned at of cylindrical shell 12 top, and separation bed 20 is separated into two reaction chambers with the inner chamber of said reaction cavity, and two reaction chambers are last reaction chamber 120 and following reaction chamber 121; And be outside equipped with the blanking channel 30 that is used to be communicated with upper and lower two reaction chambers at cylindrical shell 12; The upper and lower of this blanking channel 30 correspondence respectively is fixed on the cylindrical shell, the upper and lower port of blanking channel corresponding respectively with said cylindrical shell in the corresponding connection of upper and lower reaction chamber, in blanking channel 30, be provided be used for on the gas-solid mixture of reaction chamber carry the helix transporting device in the downward reaction chamber; This bolt e Foerderanlage comprises screw-conveyer-shaft that is driven by PWR PLT and the packing auger blade that is used to carry gas-solid mixture with the screw-conveyer-shaft rotation that is arranged on the screw-conveyer-shaft; Being used for feed-pipe 13 on reaction cavity input solid reaction raw material in being provided with above the separation bed on the cylindrical shell 12, on cylindrical shell 12, be provided with feed-pipe 40 down in the following corresponding part of reaction chamber, following feed-pipe 40 is being separated between bed and the basic bed; On cylindrical shell 12, above basic bed, also be provided with the bottom discharge pipe 16 that is used to export the finished product ALUMNIUM FLUORIDE; Bottom discharge pipe 16 is positioned at the down below of feed-pipe, below bed, also is provided with inverted cone 17 in the bottom of cylindrical shell 12, and the side housing of cone 17 is provided with the pneumatic tube 18 that is used to import hydrogen fluoride gas with the intracavity inter-connection of described reaction cavity; During reaction; By input solid reaction raw material in the upper and lower feed-pipe, and by input hydrogen fluoride cavity in the pneumatic tube, treat that gas-solid mixture reacts in the reaction cavity of fluidized-bed after; The finished product ALUMNIUM FLUORIDE that generates is then exported from the bottom discharge pipe, and the tail gas that is produced in the reaction is then discharged from vapor pipe.In the present embodiment; Separating bed 20 is made up of upper wind plate 21, bracing frame, outer cylindrical support short circuit 23 and reinforcing structure; Wherein, Bracing frame comprises the conical ring flat-plate 24 that the said above-below direction in the axial edge that is used for the support fixation upper wind plate that is weldingly fixed on the cylinder inboard wall face face extends; Bigger diameter end on the conical ring flat-plate 24 is fixed on the cylinder inboard wall face, its miner diameter end supports short circuit 23 through the outer cylindrical of axially extending along said above-below direction and is fixedly connected with upper wind plate; As shown in Figure 4; Be evenly equipped with the ventilating pit 210 of the said upper and lower reaction chamber of a plurality of connections on the upper wind plate 21, the described reinforcing structure that is used to strengthen to separate the bed bulk strength comprises the web plate 26 that is positioned at the upper wind plate below, and the web plate in the present embodiment is structure ringwise; Web plate 26 supports short circuit 25 through the inner cylindrical of axially extending along the vertical direction and is fixedly connected with upper wind plate 21, and web plate 26 supports on the short circuit 25 through being fixedly connected on said outer cylindrical around a plurality of reinforcement gussets 22 that circumferentially are distributed on the inner cylindrical support short circuit outside.In the present embodiment; The structure and the structure of the prior art of basis bed 15 are basic identical; The basis bed comprises on the air distribution plate; Following air distribution plate 50 is provided with the gas distribution channel of the inner chamber that is used to be communicated with said pneumatic tube and said reaction cavity, and this gas distribution channel comprises a plurality of transfer ports 51 that are arranged on down on the air distribution plate, is being provided with cap structure corresponding to each transfer port on the air distribution plate 50 down; Cap structure in the present embodiment comprises that one is located at down the airduct 52 on the air distribution plate; Transfer port under the tube cavity of airduct 52 on the air distribution plate is connected, and back-off has blast cap 53 at the top of airduct, on the tube wall of airduct, around circumferential arrangement four tube cavity and extraneous communicating apertures 54 of airduct that are communicated with airduct is arranged.In the present embodiment, be convenient to the reaction in the fluidized-bed is monitored, above last, basic bed, respectively be provided with the manhole being convenient to observe for making.
In the above-described embodiments; Described blanking channel is positioned at outside the cylindrical shell, in other embodiments, also can be positioned at cylindrical shell; Can also in cylindrical shell and outside the cylindrical shell, a blanking passage be set respectively, the upper end that is arranged in the intravital blanking channel of tube extends into reaction chamber, its lower end extends into down reaction chamber.The blanking channel here can be the form of output channel, also can adopt other forms, and as can on upper wind plate, offering an a little bigger slightly following material through hole, this time material through hole can serve as at the intravital blanking channel of tube.When the intravital blanking channel of tube was the form of transmission pipeline, blanking channel can be installed on the upper wind plate, also can be fixed by welding on the cylinder inboard wall face.
The helix transporting device of packing in the blanking channel outside cylindrical shell can improve the transfer rate of gas-solid mixture, prevents that gas-solid mixture from stopping up blanking channel and influencing ordinary production.In other embodiments, also helix transporting device can be installed, and only rely on the action of gravity blanking.When stopping up, can adopt other means to avoid stopping up influence, impact the blanking channel housing to shake the method for the obstruction material that looses as changing blanking channel or employing to producing.
In the above-described embodiments, cylindrical shell is provided with feed-pipe and following feed-pipe, and following feed-pipe is mainly used in the postreaction material, also feed-pipe can only be set in other embodiments.
When the fluidized-bed in adopting the foregoing description is produced ALUMNIUM FLUORIDE; In the inner chamber of reaction cavity, import hydrogen fluoride gas by pneumatic tube 18; Ventilating pit on gas distribution channel under the hydrogen fluoride gas warp on the air distribution plate, following reaction chamber, the upper wind plate gets into to be gone up in the reaction chamber 120; Upwards import white lake solid reaction raw material in the reaction chamber by last feed-pipe 13; The solid reaction raw material mixes in last reaction chamber with gas and contacts; Produce chemical reaction, in the reaction chamber 121, responseless gas-solid mixture also got into down via ventilating pit on the upper wind plate 210 and blanking channel 30 and proceeds reaction in the reaction chamber 121 under the finished product ALUMNIUM FLUORIDE that chemical reaction generated was got into by ventilating pit on the upper wind plate 210 and blanking channel 30; Resulting finished product ALUMNIUM FLUORIDE is exported from bottom discharge pipe 16 behind the end reaction, and the tail gas that reaction is produced is then through discharging in the vapor pipe 11 on the cylindrical shell.When in the fluidized-bed that the foregoing description provided, reacting, on the separation bed, roughly react 30%, on basic bed, roughly react 69%; Repeatedly contact on passing through, on the basic bed has like this prolonged duration of contact of gas-solid mixture, makes that the entire reaction in the fluidized-bed is more thorough; Finished product purity is higher; Saved gas consumption simultaneously, it is few to contain gas vol in the tail gas, more environmental protection.
Be the use that example is explained fluidized-bed to produce ALUMNIUM FLUORIDE in the above embodiments, this fluidized-bed also can be applied in other places that similar ALUMNIUM FLUORIDE is produced.
Claims (9)
1. fluidized-bed; Comprise the cylindrical shell that extends along the vertical direction; Be provided with vapor pipe on cylindrical shell top, the bottom is provided with basic bed in the cylindrical shell, and the part that is positioned at basic bed top of basic bed and cylindrical shell surrounds reaction cavity; Be provided with pneumatic tube in basic bed below on the cylindrical shell; Said basic bed comprises air distribution plate, and following air distribution plate is provided with the gas distribution channel that is communicated with said pneumatic tube and said reaction cavity, is provided with the last feed-pipe of input reaction raw materials and the bottom discharge pipe of output finished product from top to bottom in basic bed top on the cylindrical shell; It is characterized in that: be installed with the separation bed that the inner chamber of said reaction cavity is separated into upper and lower reaction chamber in basic bed top in the described cylindrical shell; Separate bed and comprise a upper wind plate, upper wind plate is provided with the ventilating pit of the said upper and lower reaction chamber of a plurality of connections, and the said feed-pipe of going up is positioned at separation bed top; Said bottom discharge pipe is positioned at separates the bed below, in the said cylindrical shell and/or the cylindrical shell peripheral hardware be useful on and be communicated with the said blanking channel of two reaction chambers up and down.
2. fluidized-bed according to claim 1; It is characterized in that: the described upper and lower that is positioned at the outer blanking channel of cylindrical shell correspondence respectively is fixed on the cylindrical shell, the upper and lower port of blanking channel corresponding respectively with said cylindrical shell in the corresponding connection of upper and lower reaction chamber.
3. fluidized-bed according to claim 2; It is characterized in that: be provided with in the described blanking channel and be used for the gas-solid mixture of last reaction chamber is carried the helix transporting device in the downward reaction chamber, this bolt e Foerderanlage comprises the screw-conveyer-shaft that driven by PWR PLT and the packing auger blade that rotates with screw-conveyer-shaft that is arranged on the screw-conveyer-shaft.
4. according to claim 1 or 2 or 3 described fluidized-beds, it is characterized in that: described separation bed also comprises the bracing frame that is used for the support fixation upper wind plate that is installed on the inner-wall surface.
5. fluidized-bed according to claim 4; It is characterized in that: described bracing frame comprises the conical ring flat-plate that the said above-below direction in axial edge extends, and the bigger diameter end of conical ring flat-plate is fixed on the cylinder inboard wall face, its miner diameter end supports short circuit through the outer cylindrical of axially extending along said above-below direction and is fixedly connected with upper wind plate.
6. fluidized-bed according to claim 4; It is characterized in that: described separation bed also comprises the reinforcing structure that is used to strengthen separating the bed bulk strength; This reinforcing structure comprises the web plate that is positioned at the upper wind plate below; Web plate supports short circuit through the inner cylindrical of axially extending along the vertical direction and is fixedly connected with upper wind plate, and web plate supports on the short circuit through being fixedly connected on said outer cylindrical around a plurality of reinforcement gussets that circumferentially are distributed on the inner cylindrical support short circuit outside.
7. according to claim 1 or 2 or 3 described fluidized-beds, it is characterized in that: the gas distribution channel on the described down air distribution plate comprises and is arranged on a plurality of transfer ports that are distributed in down on the air distribution plate, is being provided with cap structure corresponding to each transfer port descending on the air distribution plate.
8. according to claim 1 or 2 or 3 described fluidized-beds, it is characterized in that: be provided with down feed-pipe with the said corresponding part of reaction chamber down on the described cylindrical shell, said feed-pipe down is positioned at the top of said bottom discharge pipe.
9. according to claim 1 or 2 or 3 described fluidized-beds, it is characterized in that: be provided with manhole with the said corresponding part of reaction chamber that goes up on the described cylindrical shell, this manhole is positioned at the top of separating bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203437888U CN202246121U (en) | 2011-09-14 | 2011-09-14 | Fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203437888U CN202246121U (en) | 2011-09-14 | 2011-09-14 | Fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202246121U true CN202246121U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203437888U Expired - Lifetime CN202246121U (en) | 2011-09-14 | 2011-09-14 | Fluidized bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202246121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305459A (en) * | 2022-10-10 | 2022-11-08 | 江苏思尔德科技有限公司 | Atomic layer deposition equipment |
-
2011
- 2011-09-14 CN CN2011203437888U patent/CN202246121U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305459A (en) * | 2022-10-10 | 2022-11-08 | 江苏思尔德科技有限公司 | Atomic layer deposition equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |