CN106969621B - A kind of circulating short tube gas flow dryer of anti-clogging powder - Google Patents
A kind of circulating short tube gas flow dryer of anti-clogging powder Download PDFInfo
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- CN106969621B CN106969621B CN201710288406.8A CN201710288406A CN106969621B CN 106969621 B CN106969621 B CN 106969621B CN 201710288406 A CN201710288406 A CN 201710288406A CN 106969621 B CN106969621 B CN 106969621B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
- F26B17/107—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers pneumatically inducing within the drying enclosure a curved flow path, e.g. circular, spiral, helical; Cyclone or Vortex dryers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of circulating short tube gas flow dryers of anti-clogging powder, it is characterised in that the drier includes weighing device, terminal pad, hot nitrogen air inlet pipe, inclined-plane sliding plate, connecting rod guide pipe, connecting rod, upper and lower stock guide, whirlwind escape pipe, level-one gas solid separation tank, air-flow tank, powder return tank, taper feeding plate, charge plate, support plate, discharge tank and cylinder；The upper end of the air-flow tank is circumferentially evenly distributed with four whirlwind escape pipes, and the inner wall of the outer wall and air-flow tank of whirlwind escape pipe is tangent.The top of the hot nitrogen air inlet pipe is equipped with support plate, and charge plate is equipped in support plate；Hot nitrogen export structure is provided in the support plate, which makes the wind speed at charge plate be 5~6 times of hot nitrogen air inlet tank wind speed；The drier is designed by reasonable structure, and being not required to outfit cyclone separator can be achieved with the function of cyclone separator, and internal structure is simple, and easily manufactured, cleaning is simple, and manufacturing cost is low.
Description
Technical field
The present invention relates to pneumatic conveying drying field, specifically a kind of circulating short tube gas flow dryer of anti-clogging powder.
Background technique
Pneumatic conveying drying, also referred to as wink-dry are a kind of continuous efficient fluidization of solid drying means.Its handle is in pureed,
Granular or block-like wet stock are sent into thermal current, therewith cocurrent, and during convective heat transfer mass transfer, velocity heated gas makes
Wet stock dispersion, during gas-solid concurrent flow, so that vapor is evaporated, to obtain the dry production that dispersion granulates
Product.Dry purpose is to remove certain raw materials, the moisture or solvent of semi-finished product.
Tubular type gas flow dryer is divided into long-tube gas flow dryer and short tube type gas flow dryer at present.Wherein long-tube gas
Flash dryer (such as application number 201310313792.3) has 15 meters to 20 meters height, and manufacture maintenance is inconvenient, and cleaning is difficult, right
Requirement on height of workshop is higher, and gas-flow resistance is big, and power consumption is big, and operating cost is high.Short tube type gas flow dryer is mainly spiral
Tubular type gas flow dryer (such as application number 200820237769.5) its height is lower, but internal structure is complicated, and manufacture is difficult to install,
Cleaning is inconvenient, needs to be further provided with cyclone separator, and manufacturing cost is high.And more importantly two kinds of gas flow dryer heat
Wind outlet be all made of mesh structure, raw material cabin sieve easily blocks, hot wind can not in pipe smooth outflow, cause in drying process
Disconnected, low efficiency such as need to repair at many inconvenience factors.
Summary of the invention
In view of the deficiencies of the prior art, it is circulating that the technical issues of present invention intends to solve is to provide a kind of anti-clogging powder
Short tube gas flow dryer.The drier uses novel anti-blockage structure, so that hot air circulation is smooth, drying efficiency is high, no
Easily there is material leakage and dry insufficient problem.
It is dry that the technical solution that the present invention solves the technical problem is to provide a kind of circulating short tube air-flow of anti-clogging powder
Dry device, it is characterised in that the drier includes weighing device, terminal pad, hot nitrogen air inlet pipe, inclined-plane sliding plate, connecting rod guiding
Pipe, upper and lower stock guide, whirlwind escape pipe, level-one gas solid separation tank, air-flow tank, powder return tank, taper feeding plate, is contained connecting rod
Flitch, support plate, discharge tank and cylinder；
The weighing device is placed in drier lowermost end；The discharge tank is installed on weighing device；The powder returns
Stream tank is connected with discharge tank；Powder return tank and discharge tank are cylindrical structure, powder return tank and discharge tank junction
Bottom surface circular diameter is identical；The powder return tank is nested in outside air-flow tank；Air-flow tank is connected with powder return tank；
The air-flow tank is integrally the cylindrical structure of diameter of section variation, and top is large diameter cylinder, and lower part is small
Diameter cylinders, bottom are designed as inverted frustum cone structure；The top of the air-flow tank is uniformly distributed circumferentially there are four whirlwind
The inner wall of escape pipe, the outer wall and air-flow tank of whirlwind escape pipe is tangent；The top of the level-one gas solid separation tank and air-flow tank
Top connection, the shape of level-one gas solid separation tank is made of the frustum cone structure of the cylindrical structure on top and lower part；Level-one gas
Gu the bottom surface of the cylindrical structure of knockout drum is located at the lower section of whirlwind escape pipe；In same section, level-one gas solid separation tank circle
3~6 times of the area of a circle that annulus area is air-flow top tank structure are formed by between the inner wall and air-flow tank wall of column structure；One
There are gaps between the frustum cone structure and air-flow tank of grade gas solid separation tank；The circumferential direction of the small-diameter circular cylinder of the air-flow tank is provided with
Circular through hole, frustum cone structure bottom surface are provided with through-hole；The bottom of the air-flow tank cylindrical structure is circumferentially provided with circular through hole, circle
Platform structure bottom surface is provided with through-hole；The taper feeding plate is fixedly mounted on air-flow pot bottom inner wall；The taper feeding plate
Bottom surface and side be provided with through-hole；
The hot nitrogen air inlet pipe passes through discharge tank, passes through the external nitrogen heating system of draught damper；Hot nitrogen air inlet pipe
Bottom is connect with cylinder, and the output end of cylinder is connect with terminal pad；One end of the connecting rod is fixed in terminal pad, the other end with
Upper and lower stock guide connection；The connecting rod guide pipe is mounted on inclined-plane sliding plate；The outer ring of the inclined-plane sliding plate, which is welded on, unloads
On the inner wall of batch can, inner ring is welded on the outer wall of hot nitrogen air inlet pipe；The connecting rod guide pipe is welded on inclined-plane sliding plate,
Connecting rod guide pipe is nested in outside connecting rod；The discharging pot bottom connects discharge port；The top of the hot nitrogen air inlet pipe is equipped with
Support plate is equipped with charge plate in support plate；Hot nitrogen export structure is provided in the support plate, which makes charge plate
The wind speed at place is 5~6 times of hot nitrogen air inlet tank wind speed；The top outer wall of the hot nitrogen air inlet pipe is equipped with cylindric support
Structure, so that charge plate is not contacted with the bottom surface of air-flow tank frustum cone structure；One end of stock guide and the support construction up and down
Outer wall be bonded completely, when upper and lower stock guide is moved to the top, the other end is bonded with the inner wall of powder return tank；
The powder return tank is the cylindrical structure of section circular diameter variation, and the diameter on powder return tank top is greater than powder
Expect the diameter of return tank lower part, forms powder return tank frustum cone structure at diameter change；The feed pipe passes through powder return tank
It is mounted on air-flow tank top, feed pipe passes through the external nitrogen heating system of draught damper；Powder reflux upper end is connected with muffler,
Muffler passes through the external nitrogen heating system of draught damper；Humidity measurement instrument is installed in muffler；Powder return tank is connected with very
Empty pump tracheae；The external vacuum system of vacuum exhaust pipe；On same section, powder reflux top tank structure and return tank cylindrical structure
Institute's shape between the inner wall and air-flow tank wall that annulus area is level-one gas solid separation tank cylindrical structure is formed by between outer wall
At 3~6 times of annulus area.
Compared with prior art, the beneficial effects of the invention are that:
1) with the taper feeding plate of ventilation holes structure, so that hot wind flows smoothly, special cone angle design facilitates subsequent
Discharging.
2) the charge plate of taper feeding plate lower part can a small amount of powder for being scattered from taper feeding plate of access, reduce original
The waste of material.
3) according to the hot nitrogen export structure that De Laval noz(zle) principle designs hot wind is flowed smoothly, can makes at charge plate
Wind speed it is higher；Also guarantee that a small amount of powder being scattered on charge plate can be blown into again in hot air circulation drying, improved simultaneously
Drying efficiency.
4) drier interior section airflow circulating, power consumption is small, and capacity usage ratio is high.
5) powder recycles inside drier, can be by sensor real-time detection drying effect, and drying effect is controllable.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of embodiment of the circulating short tube gas flow dryer of anti-clogging powder of the present invention；
Fig. 2 is the partial enlargement diagram of the circulating short tube gas flow dryer Fig. 1 of anti-clogging powder of the present invention；
Fig. 3 is the partial schematic sectional view of the circulating short tube gas flow dryer Fig. 1 of anti-clogging powder of the present invention；(in figure: 1,
Weighing device；2, terminal pad；3, hot nitrogen air inlet pipe；4, inclined-plane sliding plate；5, connecting rod guide pipe；6, connecting rod；7, upper and lower guide
Plate；8, feed pipe；9, vacuum exhaust pipe；10, whirlwind escape pipe；11, muffler；12, level-one gas solid separation tank；13, air-flow tank；
14, powder return tank；15, taper feeding plate；16, charge plate；17, support plate；18, discharge tank；19, discharge port；20, cylinder；
21, support construction)
Specific embodiment:
Specific embodiments of the present invention are given below.Specific embodiment is only used for that present invention be described in more detail, unlimited
The protection scope of the claim of this application processed.
The present invention provides a kind of circulating short tube gas flow dryer of anti-clogging powder (referring to Fig. 1-3, abbreviation drier),
Including weighing device 1, terminal pad 2, hot nitrogen air inlet pipe 3, inclined-plane sliding plate 4, connecting rod guide pipe 5, connecting rod 6, upper and lower stock guide
7, whirlwind escape pipe 10, level-one gas solid separation tank 12, air-flow tank 13, powder return tank 14, taper feeding plate 15, charge plate 16,
Support plate 17, discharge tank 18 and cylinder 20；
The weighing device 1 is placed in drier lowermost end, when charging, controls feeding quantity according to weight；The discharging
Tank 18 is installed on weighing device 1；The powder return tank 14 and discharge tank 18 are bolted, and connect integral；Powder
Return tank 14 and discharge tank 18 are cylindrical structure, the bottom surface circular diameter phase of 18 junction of powder return tank 14 and discharge tank
Together；The powder return tank 14 is nested in outside air-flow tank 13；Connected between air-flow tank 13 and powder return tank 14 by attachment beam
Connect support；
The air-flow tank is integrally the cylindrical structure of diameter of section variation, and top is large diameter cylinder, and lower part is small
Diameter cylinders, bottom are designed as inverted frustum cone structure；It is revolved there are four being uniformly distributed circumferentially on the top of the air-flow tank 13
The inner wall of wind escape pipe 10, the outer wall and air-flow tank 13 of whirlwind escape pipe 10 is tangent；Whirlwind escape pipe 10 will be in air-flow tank 13
Gas forms spiral wind in level-one gas solid separation tank 12；The top of the level-one gas solid separation tank 12 and the top of air-flow tank 13
Connection, the shape of level-one gas solid separation tank 12 is made of the frustum cone structure of the cylindrical structure on top and lower part；Level-one gas-solid
The bottom surface of the cylindrical structure of knockout drum 12 is located at the lower section of whirlwind escape pipe 10；In same section, level-one gas solid separation tank
Annulus area is the area of a circle of 13 inner wall of air-flow tank 3 are formed by between 13 outer wall of inner wall and air-flow tank of 12 cylindrical structures
~6 times；Since the difference of volume makes wind speed decreased, the frustum cone structure combination shape of whirlwind escape pipe 10 and level-one gas solid separation tank 12
At the effect for being similar to cyclone separator, so that air-flow is after the blowout of whirlwind escape pipe 10, gas flow rate is reduced rapidly, and makes to bring about the desired sensation
Gu separation；There are gap between the frustum cone structure and air-flow tank 13 of level-one gas solid separation tank 12, enable the powder separated
It is enough to slide；The circumferential direction of the small-diameter circular cylinder of the air-flow tank is provided with circular through hole, and frustum cone structure bottom surface is provided with through-hole；It is described
The bottom of 13 cylindrical structure of air-flow tank is circumferentially provided with circular through hole, and frustum cone structure bottom surface is provided with through-hole；The taper blanking
Plate 15 is fixedly mounted in 13 bottom interior wall of air-flow tank, the intersection and taper feeding plate 15 of 15 side of taper feeding plate and bottom surface
The side inner walls of frustum cone structure be fixedly connected；The placement angle of taper feeding plate 15, can be such that powder as few as possible falls into
Between charge plate 16 and taper feeding plate 15, prevent powder from accumulating, so that air-flow flowing is smooth；The bottom of the taper feeding plate 15
Face is provided with through-hole, and side is provided with the through-hole of large aperture, and the hot wind convenient for conveying from hot nitrogen air inlet pipe 3 passes through taper blanking
Plate 15 enters air-flow tank 13；The cone angle of the taper feeding plate 15 is powder angle of friction, so that powder is easily along taper feeding plate
15 flow downward, and are convenient for later discharging；Guaranteeing that hot air flow leads to smooth premise using eurypyloue taper feeding plate structure is opened
Under in turn avoid powder drying insufficient, increase the dry efficiency and reliability of hot air circulation；
The hot nitrogen air inlet pipe 3 passes through discharge tank 18, by the external nitrogen heating system of draught damper, pass when vacuumizing
It closes, so that pressure maintaining in air-flow tank 13；The bottom of hot nitrogen air inlet pipe 3 is connect with cylinder 20, the output end and terminal pad 2 of cylinder 20
Connection；One end of the connecting rod 6 is fixed in terminal pad 2, and the other end is connect with upper and lower stock guide 7, is pushed on stock guide 7 up and down
Lower movement；The connecting rod guide pipe 5 is mounted on inclined-plane sliding plate 4；The outer ring of the inclined-plane sliding plate 4 is welded on discharge tank 18
Inner wall on, inner ring is welded on the outer wall of hot nitrogen air inlet pipe 3；The connecting rod guide pipe 5 is welded on inclined-plane sliding plate 4,
Connecting rod is oriented to 5 pipes and is nested in outside connecting rod 6, and connecting rod 6 can slide in connecting rod guide pipe 5；18 bottom of discharge tank connect to
Under inclined discharge port 19, discharge port 19 is identical as the tilt angle of inclined-plane sliding plate 4, and 19 end of discharge port is connected through a screw thread
There is lid, pressure maintaining is covered when vacuumizing；The top of the hot nitrogen air inlet pipe 3 is equipped with support plate 17, pacifies in support plate 17
Equipped with charge plate 16；The charge plate 16 being capable of a small amount of powder for falling from taper feeding plate 15 of access；The support plate 17
On be provided with hot nitrogen export structure, which designed according to De Laval noz(zle) principle, which makes air current flow direction
On sectional area reduce, the wind speed at charge plate 16 can be made higher, the wind speed at charge plate 16 is about 3 wind of hot nitrogen air inlet pipe
5~6 times of speed, so that the powder between charge plate 16 and taper feeding plate 15 to be passed through to the hot nitrogen export structure of support plate 17
It is blown into air-flow tank 13 and is dried；The top outer wall of the hot nitrogen air inlet pipe 3 is equipped with cylindric support construction 21, support
The top of structure 21 is fixedly connected with the side outer wall of 13 frustum cone structure of air-flow tank, so that charge plate 16 and 13 rotary table knot of air-flow tank
The bottom surface of structure does not contact；One end of the stock guide 7 up and down is bonded completely with the outer wall of support construction 21, upper and lower stock guide 7
When being moved to the top, the other end is bonded with the inner wall of powder return tank 14；When discharging, cylinder 20 pushes stock guide up and down
7 move down, and upper and lower stock guide 7 is separated with the outer wall of support construction 21, and dry powder slides from this gap to inclined-plane lubricating substance
Plate 4；
The powder return tank 14 is the cylindrical structure of section circular diameter variation, and the diameter on 14 top of powder return tank is big
Diameter in 14 lower part of powder return tank forms 14 frustum cone structure of powder return tank at diameter change；The feed pipe 8 passes through powder
Material return tank 14 is mounted on the middle position on 13 top of air-flow tank, is equipped with feed opening with cover, feed pipe 8 on feed pipe 8
Pass through the external nitrogen heating system of draught damper；14 top of powder return tank is connected with muffler 11, and muffler 11 passes through draught damper
External nitrogen heating system；Humidity measurement instrument is installed in muffler 11；Powder return tank 14 is connected with vacuum exhaust pipe 9；Very
The external vacuum system of empty pump tracheae, for being vacuumized in drier, making the crystallization water in powder before carrying out cyclic drying
It is easier to vaporize；On same section, annular is formed by between 14 inner wall of powder return tank and the outer wall of return tank cylindrical structure
Area be 12 cylindrical structure of level-one gas solid separation tank 13 outer wall of inner wall and air-flow tank between be formed by annulus area 3~
6 times, since the difference of volume makes wind speed decreased, spiral wind and 14 frustum cone structure of powder return tank, which combine, to be formed similar to whirlwind point
Effect from device carries out gas solid separation again.
The working principle and workflow of the circulating short tube gas flow dryer of anti-clogging powder of the present invention are:
1) it feeds: being bonded one end of upper and lower stock guide 7 completely with the outer wall of support construction 21, the other end and powder flow back
The inner wall of tank 14 is bonded, and is fed by the feed opening on feed pipe 8, the draught damper that feed pipe 8 connects is opened, while charging
Feeding quantity is controlled by the inside nitrogen blowing of nitrogen heating system, while according to weighing device 1, after charging, closes feed pipe 8
The draught damper of connection, simultaneously closes off feed opening.
2) it vacuumizes: the draught damper of hot nitrogen air inlet pipe 3 being kept to close, discharge port 19 is closed, the gas that muffler 11 connects
Valve is flowed to close.According to the difference of powder, vacuum degree is determined, when vacuum degree reaches certain value, close what vacuum exhaust pipe 9 connected
Draught damper.Under vacuum, the water in hydrate is easier to be precipitated, and water is easier to vaporize.Kept for a period of time.
3) powder cyclic drying: the draught damper of the connection of muffler 11, the draught damper that hot nitrogen air inlet pipe 3 connects are opened and is gone out
Material mouth 19.It is blown into nitrogen of the high speed by heating from hot nitrogen air inlet pipe 3, hot nitrogen will by taper feeding plate 15, hot nitrogen
It while powder is blown afloat, is come into full contact with powder, and carries out heat exchange, vaporize the moisture in powder, hot nitrogen band
Four whirlwind escape pipe 10 spirals outflow of the raw material by the top of air-flow tank 13, due to 12 cylindrical body knot of level-one gas solid separation tank
The area of a circle that annulus area is much larger than 13 inner wall of air-flow tank is formed by between 13 outer wall of inner wall and air-flow tank of structure, so that flow velocity
The frustum cone structure of decline, whirlwind escape pipe 10 and level-one gas solid separation tank 12 combines the effect formed similar to cyclone separator,
Gas solid separation, powder are slipped to up and down on stock guide 7, and the circular through hole through air-flow tank 13 enters air-flow tank 13, through jet action,
Into next circulation.Portion gas enters powder return tank 14,14 inner wall of powder return tank and level-one with the moisture of vaporization
Annulus area is formed by between the outer wall of 12 cylindrical structure of gas solid separation tank much larger than 12 cylindrical body of level-one gas solid separation tank
It is formed by annulus area between 13 outer wall of inner wall and air-flow tank of structure, so that air-flow reduction of speed again, spiral wind and powder
14 frustum cone structure of return tank combines the effect formed similar to cyclone separator, and powder slides to stock guide 7 up and down, and entrance is next
Circulation, portion gas are discharged with vapor cooled via return air pipe 11.Thus powder constantly recycles.
4) it blanking: when the humidity measurement instrument installed in muffler 11 detects that humidity reaches the damp condition of requirement, closes
Close 3 draught damper of hot nitrogen air inlet pipe, the piston rod of cylinder 20 pushes terminal pad 2, drive connecting rod 6 make up and down stock guide 7 to moving down
Dynamic, the inclined-plane of a part of taper feeding plate 15 of powder after drying is fallen, and a part is from powder return tank 14 through upper and lower stock guide 7
It falls, is dropped out through inclined-plane sliding plate 4 by discharge port 19.
The present invention does not address place and is suitable for the prior art.
Claims (5)
1. a kind of circulating short tube gas flow dryer of anti-clogging powder, it is characterised in that: the drier includes weighing device, connection
Disk, hot nitrogen air inlet pipe, inclined-plane sliding plate, connecting rod guide pipe, connecting rod, upper and lower stock guide, whirlwind escape pipe, level-one gas solid separation
Tank, air-flow tank, powder return tank, taper feeding plate, charge plate, support plate, discharge tank and cylinder；
The weighing device is placed in drier lowermost end；The discharge tank is installed on weighing device；The powder return tank
It is connected with discharge tank；Powder return tank and discharge tank are cylindrical structure, the bottom surface of powder return tank and discharge tank junction
Circular diameter is identical；The powder return tank is nested in outside air-flow tank；Air-flow tank is connected with powder return tank；
The air-flow tank is integrally the cylindrical structure of diameter of section variation, and top is large diameter cylinder, and lower part is minor diameter
Cylindrical body, bottom are designed as inverted frustum cone structure；The top of the air-flow tank is uniformly distributed circumferentially there are four whirlwind outlet
Pipe, the inner wall of the outer wall and air-flow tank of whirlwind escape pipe are tangent；The top of the level-one gas solid separation tank and the top of air-flow tank
Connection, the shape of level-one gas solid separation tank is made of the frustum cone structure of the cylindrical structure on top and lower part；Level-one gas-solid point
The bottom surface of cylindrical structure from tank is located at the lower section of whirlwind escape pipe；In same section, level-one gas solid separation tank cylindrical body
3 ~ 6 times of the area of a circle that annulus area is air-flow top tank structure are formed by between the inner wall and air-flow tank wall of structure；Level-one gas
Gu between the frustum cone structure and air-flow tank of knockout drum, there are gaps；The bottom of the small-diameter circular cylinder of the air-flow tank is circumferentially provided with
Circular through hole, frustum cone structure bottom surface are provided with through-hole；The taper feeding plate is fixedly mounted on air-flow pot bottom inner wall；It is described
The bottom surface and side of taper feeding plate are provided with through-hole；
The hot nitrogen air inlet pipe passes through discharge tank, passes through the external nitrogen heating system of draught damper；The bottom of hot nitrogen air inlet pipe
It is connect with cylinder, the output end of cylinder is connect with terminal pad；One end of the connecting rod is fixed in terminal pad, the other end and up and down
Stock guide connection；The connecting rod guide pipe is mounted on inclined-plane sliding plate；The outer ring of the inclined-plane sliding plate is welded on discharge tank
Inner wall on, inner ring is welded on the outer wall of hot nitrogen air inlet pipe；The connecting rod guide pipe is welded on inclined-plane sliding plate, connecting rod
Guide pipe is nested in outside connecting rod；The discharging pot bottom connects discharge port；The top of the hot nitrogen air inlet pipe is equipped with support
Plate is equipped with charge plate in support plate；Hot nitrogen export structure is provided in the support plate, which makes at charge plate
Wind speed is 5 ~ 6 times of hot nitrogen air inlet pipe wind speed；The top outer wall of the hot nitrogen air inlet pipe is equipped with cylindric support construction,
So that charge plate is not contacted with the bottom surface of air-flow tank frustum cone structure；One end of stock guide and the outer wall of support construction up and down
Fitting completely, when upper and lower stock guide is moved to the top, the other end is bonded with the inner wall of powder return tank；
The powder return tank is the cylindrical structure of section circular diameter variation, and the diameter on powder return tank top is returned greater than powder
The diameter of tank lower part is flowed, forms powder return tank frustum cone structure at diameter change；Feed pipe passes through powder return tank and is mounted on gas
Tank top is flowed, feed pipe passes through the external nitrogen heating system of draught damper；Powder reflux upper end is connected with muffler, and muffler is logical
Cross the external nitrogen heating system of draught damper；Humidity measurement instrument is installed in muffler；Powder return tank is connected with vacuum exhaust pipe；
The external vacuum system of vacuum exhaust pipe；On same section, powder reflux top tank structure and level-one gas solid separation tank cylindrical structure
Institute's shape between the inner wall and air-flow tank wall that annulus area is level-one gas solid separation tank cylindrical structure is formed by between outer wall
At 3 ~ 6 times of annulus area.
2. the circulating short tube gas flow dryer of anti-clogging powder according to claim 1, it is characterised in that taper feeding plate
Side is fixedly connected with the intersection of bottom surface with the side inner walls of the frustum cone structure of air-flow tank.
3. the circulating short tube gas flow dryer of anti-clogging powder according to claim 1, it is characterised in that the taper is fallen
The cone angle of flitch is powder angle of friction, so that powder easily flows downward along taper feeding plate, is convenient for later discharging.
4. the circulating short tube gas flow dryer of anti-clogging powder according to claim 1, it is characterised in that discharge port and tiltedly
The tilt angle of face sliding plate is identical.
5. the circulating short tube gas flow dryer of anti-clogging powder according to claim 1, it is characterised in that support construction
Top is fixedly connected with the side outer wall of air-flow tank frustum cone structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710288406.8A CN106969621B (en) | 2017-04-27 | 2017-04-27 | A kind of circulating short tube gas flow dryer of anti-clogging powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710288406.8A CN106969621B (en) | 2017-04-27 | 2017-04-27 | A kind of circulating short tube gas flow dryer of anti-clogging powder |
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| Publication Number | Publication Date |
|---|---|
| CN106969621A CN106969621A (en) | 2017-07-21 |
| CN106969621B true CN106969621B (en) | 2019-05-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107514894B (en) * | 2017-08-31 | 2019-04-19 | 河北工业大学 | No sieve stream washes formula battery material drier |
| CN108344268A (en) * | 2018-04-10 | 2018-07-31 | 苏州舜沃环保科技有限公司 | A kind of material drying device |
| CN108332528A (en) * | 2018-04-10 | 2018-07-27 | 苏州舜沃环保科技有限公司 | A kind of graininess waste material drying and processing mechanism |
| CN108844354B (en) * | 2018-08-01 | 2023-08-11 | 广东新会美达锦纶股份有限公司 | Drying device for nylon 6 slices |
| CN109668403A (en) * | 2018-11-19 | 2019-04-23 | 湖南全望信息科技有限公司 | Grain drying device is used in a kind of experiment of agricultural sciences |
| CN110793302B (en) * | 2019-11-19 | 2023-07-25 | 江苏威拉里新材料科技有限公司 | Metal powder dryer |
| CN112556363B (en) * | 2020-12-08 | 2022-09-23 | 萍乡宝海锌营养科技有限公司 | Drying furnace is used in zinc sulfate production |
| CN112857012B (en) * | 2021-02-01 | 2022-03-22 | 河北工业大学 | Prevent blockking up air flow dryer and wind speed hoist mechanism |
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| CN201135099Y (en) * | 2008-01-11 | 2008-10-22 | 罗飞天 | Nitrogen-filled grain-storing device for grain depot |
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| CN105928359A (en) * | 2016-06-06 | 2016-09-07 | 楚天科技股份有限公司 | Box structure for tunnel sterilizing dryer and laminar flow control method of box |
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