CN209147578U - A kind of back-shaped inert particles fluidized bed drying equipment - Google Patents
A kind of back-shaped inert particles fluidized bed drying equipment Download PDFInfo
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- CN209147578U CN209147578U CN201821455425.1U CN201821455425U CN209147578U CN 209147578 U CN209147578 U CN 209147578U CN 201821455425 U CN201821455425 U CN 201821455425U CN 209147578 U CN209147578 U CN 209147578U
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Abstract
The utility model provides a kind of back-shaped inert particles fluidized bed drying equipment, including drying box, inert particle conveying device, feeding device, at the top of drying box by exhaust outlet successively with gas-solid separating device, air-introduced machine piping connection, drying box bottom connects air blower by heater line, gas distribution grid is equipped with inside drying box, several partitions are vertically installed on gas distribution grid, drying box is divided into several hothouses by partition, inert particle is filled in each hothouse, first hothouse side feed inlet and feeding device piping connection, each indoor inert particle of drying is under the action of material position difference successively to adjacent next dry indoor moveable；Final drying compartment is equipped with inert particle conveying device, to form inert particle in the indoor circulation of drying.The utility model relates to drying device be an end to end horizontal multi-cell fluidized bed, which can optimize the drying process of cream paste, pasty material, improve entire drying process reliability of operation.
Description
Technical field
The utility model belongs to drying equipment technical field, and in particular to a kind of back-shaped inert particles fluidized bed is dry to be set
It is standby.
Background technique
Inert particle fluidized drying is that certain a certain amount of inert particle is added in drier, and material is transported to bed
It is interior and be uniformly attached on inert particle surface, it follows particle to fluidize together, carries out part caloic by contacting with thermal current phase border
Transmitting, while the heat of inside particles storage is also passed to material, completes part Mass and heat transfer process, reaches material dehumidifying mesh
's.After material is dry in bed, material film is become to play brittleness by elastoplasticity, and under the collision of particle from particle surface in the form of sheets
Or powdery falls off, and leaves fluidized bed with air-flow.
In the drying process, the sticking, dry of material, the three phases that fall off are same to current inert particles fluidized bed
What position carried out, inert particle surface dry material sticks wet stock again after falling off or when dry material is not completely fallen off just has sticked
Attached wet stock, when wet stock inlet amount is larger or wet stock is sticky larger, inert particle easily assembles agglomerating, generation with wet stock
Dead bed phenomenon.
Chinese patent CN2849609Y proposes a kind of Inert Particle Fluidized-bed Dryer, including air filter, send
Blower, radiator, heater, screw pump, feeder, fluidizer, cyclone separator, material storage barrel, bag filter and air inducing
Machine, the device can be used for the drying of the materials such as cream paste, pulpous state and liquid well, but the problem is that material in drying box
Stick, dry, removing three phases and can influence each other, when wet stock inlet amount is larger or material is sticky larger, it may occur that
Dead bed phenomenon, and the heat-transfer effect between inert particle and wet stock is bad.
Summary of the invention
For above-mentioned technical problem of the existing technology, the purpose of this utility model is to provide a kind of back-shaped inertia grains
Sub- fluidized bed drying equipment and its drying means, by the device and method of the utility model, the sticking of material in drying process,
Dry, removing three phases carry out at the different location of hothouse respectively, effectively prevent interfering with each other for three phases, mention
The high drying efficiency of wet stock.
A kind of back-shaped inert particles fluidized bed drying equipment, it is characterised in that defeated including drying box, inert particle
Send device, feeding device, at the top of drying box by exhaust outlet successively with gas-solid separating device, air-introduced machine piping connection, drying box
Bottom connects air blower by heater line, and gas distribution grid is equipped with inside drying box, is vertically installed on gas distribution grid
Drying box is divided into several hothouses, fills inert particle in each hothouse by several partitions, partition；First hothouse side
Portion's feed inlet and feeding device piping connection, each indoor inert particle of drying is under the action of material position difference successively to adjacent
Next dry indoor moveable；Final drying compartment is equipped with inert particle conveying device, for by the inertia grain in final drying compartment
Son is conveyed into the first hothouse, to form inert particle in the indoor circulation of drying.
A kind of back-shaped inert particles fluidized bed drying equipment, it is characterised in that it further include dehumidifier, the air inducing
The escape pipe of machine passes through the air inlet pipe piping connection of dehumidifier and air blower, so that passing through dehumidifier by the gas that air-introduced machine is drawn
Enter air blower after being dehumidified, with the heat in secondary use tail gas.
A kind of back-shaped inert particles fluidized bed drying equipment, it is characterised in that one piece is provided on gas distribution grid
Longitudinal baffle and several lateral partitions, the longitudinal baffle to two dry sections are divided into, distinguish drying box on two dry sections
The feeding device and inert particle conveying device are set；Several lateral partitions are connect with longitudinal baffle square crossing, by two
Dry section is divided into several hothouses respectively.
A kind of back-shaped inert particles fluidized bed drying equipment, it is characterised in that heater include primary heater and
Secondary heater, air blower include the first air blower and the second air blower；Two dry section bottoms are respectively equipped with inlet plenum, are equipped with
The inlet plenum of the dry section bottom of feeding device is equipped with inert particle and is conveyed by the first air blower of primary heater piping connection
The inlet plenum of the dry section bottom of device passes through the second air blower of secondary heater piping connection.
A kind of back-shaped inert particles fluidized bed drying equipment, it is characterised in that from the first air blower to equipped with charging
The gas temperature being passed through in the dry section of device is 90 ~ 200 DEG C, further, from first air blower to being equipped with feeding device
The gas temperature being passed through in dry section is 120 ~ 130 DEG C；From the second air blower to the dry section equipped with inert particle conveying device
The gas temperature being inside passed through is less than or equal to the gas temperature that the first air blower is sent into.
A kind of back-shaped inert particles fluidized bed drying equipment, it is characterised in that one end of longitudinal baffle and drying box
Between inner wall be equipped with gap, formed between two dry sections for inert particle circulation channel, the longitudinal baffle it is another
One end is fixedly connected with dry chamber interior wall.
A kind of back-shaped inert particles fluidized bed drying equipment, it is characterised in that the height at the top of longitudinal baffle is greater than
Height at the top of lateral partitions, in case the inert particle of longitudinal baffle two sides is mutually mixed without circulating lower；Lateral partitions
The connection of the inner wall of both ends and drying box, is equipped with gap between bottom end and gas distribution grid.
A kind of back-shaped inert particles fluidized bed drying equipment, it is characterised in that feeding device be feed screw or
Liquid dispersion device, the liquid dispersion device include pump and distributor；Gas-solid separating device is cyclone separator or cloth bag
Deduster；Inert particle conveying device is feed screw.
A kind of back-shaped inert particles fluidized bed drying equipment, it is characterised in that entire drying system is open system
Or closed system, open system are to be directly discharged in environment by the wind that air-introduced machine is drawn, what air blower blasted is in environment
Gas；Closed system is to enter air blower after the gas drawn by air-introduced machine is dehumidified by dehumidifier, so that in tail gas
Heat can be divided into two-way with secondary use, the escape pipe of the dehumidifier of closed system, two-way escape pipe respectively with the first air blower
With the second air blower piping connection.
Compared with the existing technology, the beneficial effect that the utility model obtains is:
(1) the utility model is overcome back-shaped inert particle channel is designed to inside inert particle drier existing
Inert particles fluidized bed drying process in material the shortcomings that being easy to be bonded together, dead bed phenomenon occurs；It is lazy in drying process
Circumferentially circulation, material stick, dry, removing three phases respectively in the difference of hothouse property particle in hothouse
It is carried out at position, effectively prevents interfering with each other for three phases, improve the drying efficiency of wet stock；Pass through the utility model
Method, can optimize the drying process of wet stock, reduce production cost；
(2) device structure of the utility model is simple, and occupied area is small, is suitable for industry's enlarging production.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the utility model open system；
The cross sectional plan view of Fig. 2 the embodiments of the present invention；
Fig. 3 is the utility model device left view；
Fig. 4 is the schematic diagram of the section structure of the utility model closed system；
In figure, 1- drying box, the channel 100-, 2- longitudinal baffle, 3- lateral partitions, 4- gas distribution grid, 5- inlet plenum, 6-
Heater, 601- primary heater, 602- secondary heater, 7- air blower, the first air blower of 701-, the second air blower of 702-,
8- inert particle conveying device, 9- feeding device, 10- exhaust outlet, 11- gas-solid separating device, 12- air-introduced machine, 13- dehumidifier,
The first hothouse of A-, the secondary drying chamber C-, B- final drying compartment.
Specific embodiment
The utility model is described in further detail combined with specific embodiments below, but the protection scope of the utility model is not
It is limited to this.
Embodiment:
A kind of back-shaped inert particles fluidized bed drying equipment, including drying box 1, top by the exhaust outlet 10 that is equipped with according to
Secondary that gas distribution grid 4 is equipped with inside drying box 1 with 12 piping connection of gas-solid separating device 11 and air-introduced machine, 1 bottom of drying box is logical
6 piping connection air blower 7 of heater is crossed, drying box 1 is divided into several by several partitions being vertically installed on gas distribution grid 4
Hothouse fills inert particle in each hothouse.First hothouse A side feed inlet and 9 piping connection of feeding device, most
Afterwards hothouse B be equipped with inert particle conveying device 8, for by the inert particle in final drying compartment B into the first hothouse A
Conveying, to form inert particle in the indoor circulation of drying.
Above-mentioned feeding device 9 can be feed screw or liquid dispersion device, the liquid dispersion device include pump and
Distributor；Gas-solid separating device 11 can be cyclone separator or bag filter；Inert particle conveying device 8 can be spiral shell
Revolve charger.
The above-mentioned partition being vertically installed on gas distribution grid 4, can be one piece of longitudinal baffle 2 and several lateral partitions 3,
Drying box 1 is divided into several hothouses.
The longitudinal baffle 2 is vertically installed on gas distribution grid 4, and by drying box 1 to two dry sections are divided into, two dry
The feeding device 9 and inert particle conveying device 8(i.e. feeding device 9 and inert particle conveying device 8 are respectively set in dry area
It is respectively arranged on the two sides of longitudinal baffle 2)；Several lateral partitions 3 are connect with 2 square crossing of longitudinal baffle, by two dry differentiations
Not being divided into several hothouses, (in the present embodiment, hothouse forms an end to end form, lazy in the first hothouse A
Property particle is successively flowed into next hothouse, is finally flowed into final drying compartment B, inert particle conveying device 8 again will be last
Inert particle in hothouse B is delivered in the first hothouse A, i.e., as in Fig. 2, inert particle is right-hand circular flowing).
Heater 6 includes primary heater 601 and secondary heater 602, and air blower 7 includes the first air blower 701 and the
Two air blowers 702；Two dry section bottoms are respectively equipped with inlet plenum 5, the inlet plenum 5 of the dry section bottom equipped with feeding device 9
By 601 the first air blower of piping connection 701 of primary heater, intake air temperature is 90 ~ 200 DEG C, preferably 120~130 DEG C；If
There is the inlet plenum 5 of the dry section bottom of inert particle conveying device 8 to pass through 602 the second air blower of piping connection of secondary heater
702, intake air temperature is less than or equal to the gas temperature that the first air blower 701 is sent into.
It can thus be seen that the purpose that drying box 1 separates is by longitudinal baffle 2: being stained with the inert particle of wet stock
It is successively mobile to adjacent next hothouse from the first hothouse A or secondary drying chamber C, the wet object newly entered can be effectively prevented
Material is attached on the surface of material not being completely dried also, and causes uneven drying or dead bed phenomenon, and can also enhance heat transfer；
When being dried in drying box, material is become to play brittleness by elastoplasticity, since inert particle is irregularly transported under fluidized state
It is dynamic, it collides between particle and particle, particle and wall, so that the dry material on inert particle surface is in the form of sheets or powdery falls off
It is carried secretly afterwards by gas, gas-solid separating device 11 is flowed by exhaust outlet 10, carries out material recycle.
Above-mentioned lateral partitions 3 are connect with 2 square crossing of longitudinal baffle, and drying box 1 is divided into several hothouses, Ruo Gangan
Dry room forms an end to end form in drying box 1.In wet stock drying process, wet stock flows into the first hothouse
In A (wet stock can also be also passed into the secondary drying chamber C adjacent with the first hothouse A, be also provided on secondary drying chamber C into
Expect device 9), the inert particle for being stained with wet stock successively flows into adjacent next hothouse under material position difference motive force, finally
It flows into final drying compartment B, the inert particle in final drying compartment B is delivered to the first hothouse A by inert particle conveying device 8
It is interior, route is circulated with form inert particle.
The height at above-mentioned 2 top of longitudinal baffle is greater than the height at 3 top of lateral partitions, in case 2 two sides of longitudinal baffle is lazy
Property particle be mutually mixed without circulating lower, to cause that circulating for inert particle cannot be formed；In Fig. 2, it is stained with wet
The inert particle of material, along longitudinal baffle 2, successively flows into adjacent next hothouse under material position difference motive force.
In above-mentioned inert particle flow process, the channel 100 for being equipped with circulation inert particle is needed between two dry sections, can be pressed
Following manner: gap, institute are equipped between one end of longitudinal baffle 2 and the connection of 1 inner wall of drying box, 1 inner wall of the other end and drying box
If gap is the channel 100 between two dry sections, i.e., as in Fig. 2, inert particle is in the dry section for being equipped with feeding device 9
It flows to the right along longitudinal baffle 2, turns back in the dry section for entering and being equipped with inert particle conveying device 8 through channel 100, inertia grain
Son flows to the left further along longitudinal baffle 2, formed an end to end inert particle circulate route (i.e. as in Fig. 2, the
One hothouse A and final drying compartment B connect, and convey the inert particle in final drying compartment B conducive to inert particle conveying device 8
Enter in the first hothouse A, form circulating for inert particle).
Above-mentioned entire drying system is open system or closed system, and open system is direct for the wind drawn by air-introduced machine 12
It is discharged into environment, what air blower 7 blasted is the gas in environment；Closed system is the gas drawn by air-introduced machine 12 by removing
Wet device 13 enters air blower 7 after being dehumidified so that heat in tail gas can with secondary use, the dehumidifier 13 of closed system
Escape pipe is divided into two-way, two-way escape pipe respectively with 702 piping connection of the first air blower 701 and the second air blower.
The drying means of the wet stock of the present embodiment are as follows:
A length of 0.4 m of drying box 1 that uses, concentrated phase area width for 0.2 m, expanding reach width are 0.44 m, total height is 1 m,
Gas distribution grid 4 is set in drying box 1, be vertically arranged on gas distribution grid 4 one piece of a height of 0.32m, a length of 0.35m it is longitudinal every
Plate 2, longitudinal baffle 2 by drying box 1 to point；
2 one end of longitudinal baffle is connect with 1 inner wall of drying box, the other end is equipped with the gap apart from 1 inner wall 0.05m of drying box,
The gap is channel 100；
The lateral partitions 3 of three pieces of a height of 0.24 m are set in drier 1, and wherein lateral partitions 3 are apart from gas distribution grid 4
0.02 m, lateral partitions 3 are connect with 2 square crossing of longitudinal baffle, and 3 both ends of lateral partitions are fixedly connected with 1 inner wall of drier；It is vertical
Drying box 1 is divided into the hothouse that the big length and width such as 8 are all 0.1 m to partition 2 and lateral partitions 3.
Gas distribution grid 4, which is equipped with, opens sieve pore, and percent opening 14%, the aperture in each hole is 1.5 mm, each hothouse
Inside uniformly spread quiet 80 mm Ceramic Balls inert particle of the height of bed.
It is 780 m by the first air blower 701 input air quantity3The air of/h, after primary heater 601 is preheated to 125 DEG C,
It is passed through in the inlet plenum 5 of the dry section bottom equipped with feeding device 9；It is 780 m by the second air blower 702 input air quantity3/ h's
Normal temperature air is passed directly into the inlet plenum 5 of the dry section bottom equipped with inert particle conveying device 8；Entire drying system is adopted
Use open system；
Inert particle in drying box 1 is in be passed through wet stock (choosing into the first hothouse A from feeding device 9 after fluidizing state
The jinggangmeisu solution for being 70% with moisture wet basis is fed with the inlet amount of 20 kg/h by peristaltic pump, which belongs to cold
Brittle material, 102 DEG C of whens, soften), be stained with wet stock inert particle successively flowed under material position difference motive force it is adjacent under
One hothouse, inert particle conveying device 8(are feed screw) that the inert particle in final drying compartment B is delivered to first is dry
In dry room A, to form inert particle in the indoor circulation of drying；Wet stock successively through adherency, drying, fall off process, take off
It is cyclone separator that backward material, which flows into gas-solid separating device 11(by exhaust outlet 10 through gas entrainment), it carries out material and returns
It receives, that is, completes the continuous drying recycling of wet stock；The drying effect of the present embodiment wet stock is good, collects in cyclone separator
Product, measurement product be averaged wet basis moisture content be 0.5%.
Content described in this specification is only to enumerate to utility model design way of realization, the protection of the utility model
Range should not be construed as being limited to the specific forms stated in the embodiments, and the protection scope of the utility model is also only in ability
Field technique personnel according to the utility model design it is conceivable that equivalent technologies mean.
Claims (10)
1. a kind of back-shaped inert particles fluidized bed drying equipment, it is characterised in that including drying box (1), inert particle conveying device
(8), feeding device (9), at the top of drying box (1) by exhaust outlet (10) successively with gas-solid separating device (11), air-introduced machine (12)
Piping connection, by heater (6) piping connection air blower (7), drying box (1) is internal equipped with gas point for drying box (1) bottom
Fabric swatch (4) is vertically installed with several partitions on gas distribution grid (4), and drying box (1) is divided into several hothouses by partition, often
Inert particle is filled in a hothouse；
First hothouse (A) side feed inlet and feeding device (9) piping connection, each indoor inert particle of drying is in material position
Successively to adjacent next dry indoor moveable under the action of difference；Final drying compartment (B) is equipped with inert particle conveying device
(8), for the conveying into the first hothouse (A) by the inert particle in final drying compartment (B), to form inert particle in drying
Indoor circulation.
2. a kind of back-shaped inert particles fluidized bed drying equipment according to claim 1, it is characterised in that further include dehumidifying
Device (13), the escape pipe of the air-introduced machine (12) pass through the air inlet pipe piping connection of dehumidifier (13) and air blower (7), so that by
The gas that air-introduced machine (12) is drawn enters air blower (7) after being dehumidified by dehumidifier (13), in secondary use tail gas
Heat.
3. a kind of back-shaped inert particles fluidized bed drying equipment according to claim 1 or 2, it is characterised in that gas distribution
Be provided with one piece of longitudinal baffle (2) and several lateral partitions (3) on plate (4), the longitudinal baffle (2) by drying box (1) to point
At two dry sections, the feeding device (9) and inert particle conveying device (8) are respectively set on two dry sections；Several cross
It is connect to partition (3) with longitudinal baffle (2) square crossing, two dry sections is divided into several hothouses respectively.
4. a kind of back-shaped inert particles fluidized bed drying equipment according to claim 2, it is characterised in that heater (6) packet
Primary heater (601) and secondary heater (602) are included, air blower (7) includes the first air blower (701) and the second air blower
(702)；Two dry section bottoms are respectively equipped with inlet plenum (5), are equipped with the inlet plenum (5) of the dry section bottom of feeding device (9)
By primary heater (601) the first air blower of piping connection (701), it is equipped with the dry section bottom of inert particle conveying device (8)
The inlet plenum (5) in portion passes through secondary heater (602) second air blower of piping connection (702).
5. a kind of back-shaped inert particles fluidized bed drying equipment according to claim 3, it is characterised in that by the first air blast
The gas temperature that machine (701) is passed through into the dry section for being equipped with feeding device (9) is 90 ~ 200 DEG C；By the second air blower (702)
The gas temperature being passed through into the dry section for being equipped with inert particle conveying device (8) is sent less than or equal to the first air blower (701)
The gas temperature entered.
6. a kind of back-shaped inert particles fluidized bed drying equipment according to claim 2, it is characterised in that longitudinal baffle (2)
One end and drying box (1) inner wall between be equipped with gap, formed between two dry sections for inert particle circulation channel
(100), the other end of the longitudinal baffle (2) is fixedly connected with drying box (1) inner wall.
7. a kind of back-shaped inert particles fluidized bed drying equipment according to claim 2, it is characterised in that longitudinal baffle (2)
The height at top is greater than the height at the top of lateral partitions (3), so as not to the inert particle of longitudinal baffle (2) two sides without circulate it is lower and
It is mutually mixed；The both ends of lateral partitions (3) are connect with the inner wall of drying box (1), and sky is equipped between bottom end and gas distribution grid (4)
Gap.
8. a kind of back-shaped inert particles fluidized bed drying equipment according to claim 1, it is characterised in that feeding device (9)
For feed screw or liquid dispersion device, the liquid dispersion device includes pump and distributor；Gas-solid separating device (11) is
Cyclone separator or bag filter；Inert particle conveying device (8) is feed screw.
9. a kind of back-shaped inert particles fluidized bed drying equipment according to claim 1, it is characterised in that entire dry system
System is open system or closed system, and open system is to be directly discharged in environment by the wind that air-introduced machine (12) are drawn, air blower
(7) what is blasted is the gas in environment；Closed system is that the gas drawn by air-introduced machine (12) is removed by dehumidifier (13)
Enter air blower (7) after wet, so that the heat in tail gas can be with secondary use, the escape pipe point of the dehumidifier (13) of closed system
For two-way, two-way escape pipe respectively with the first air blower (701) and the second air blower (702) piping connection.
10. a kind of back-shaped inert particles fluidized bed drying equipment according to claim 5, it is characterised in that by the first air blast
The gas temperature that machine (701) is passed through into the dry section for being equipped with feeding device (9) is 120 ~ 130 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821455425.1U CN209147578U (en) | 2018-09-06 | 2018-09-06 | A kind of back-shaped inert particles fluidized bed drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821455425.1U CN209147578U (en) | 2018-09-06 | 2018-09-06 | A kind of back-shaped inert particles fluidized bed drying equipment |
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| CN209147578U true CN209147578U (en) | 2019-07-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210870A (en) * | 2018-09-06 | 2019-01-15 | 浙江工业大学 | A kind of back-shaped inert particles fluidized bed drying equipment and its drying means |
-
2018
- 2018-09-06 CN CN201821455425.1U patent/CN209147578U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210870A (en) * | 2018-09-06 | 2019-01-15 | 浙江工业大学 | A kind of back-shaped inert particles fluidized bed drying equipment and its drying means |
| CN109210870B (en) * | 2018-09-06 | 2023-11-28 | 浙江工业大学 | Drying equipment and drying method for annular inert particle fluidized bed |
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