CN207356601U - A kind of spray drying system - Google Patents

A kind of spray drying system Download PDF

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Publication number
CN207356601U
CN207356601U CN201721387489.8U CN201721387489U CN207356601U CN 207356601 U CN207356601 U CN 207356601U CN 201721387489 U CN201721387489 U CN 201721387489U CN 207356601 U CN207356601 U CN 207356601U
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Prior art keywords
spray drying
inlet pipe
air
hot gas
fluid bed
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CN201721387489.8U
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Chinese (zh)
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徐升
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Anhui Danuo Dairy Ltd By Share Ltd
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Anhui Danuo Dairy Ltd By Share Ltd
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Abstract

The utility model discloses a kind of spray drying system, including fan house, spray drying tower and fluid bed;Spraying hot gas inlet pipe is connected between the top of the fan house and the spray drying tower, First Heat Exchanger is installed on the spraying hot gas inlet pipe, air curtain air-flow inlet pipe is connected between the top of the fan house and the spray drying tower, the second heat exchanger is installed on the air curtain air-flow inlet pipe, fluidisation hot gas inlet pipe is connected between the part between second heat exchanger and the spray drying tower of the air curtain air-flow inlet pipe and the fluid bed, the discharge port of the spray drying tower is connected with the feed inlet of the fluid bed.The generation for the coke powder that the utility model can avoid and wall sticking phenomenon, and can ensure dry adequacy.

Description

A kind of spray drying system
Technical field
Drying device field is the utility model is related to, relates in particular to a kind of spray drying system.
Background technology
In field of food industry, it is often necessary to which some liquid materials are dried to the system of granular material, such as milk powder product Make process, carry out above-mentioned processing generally by spray drying tower in the prior art.
Although spray drying tower can be dried to the purpose of powder, problems with is still suffered from:Thermal current is from spray drying The top of tower enters, and material enters via the feed inlet of spray drying tower, and due to the effect of air-flow, partial material can float to top Portion, coke powder can be become by touching high temperature gas flow, and can produce wall sticking phenomenon, influence product sensory quality.
Utility model content
Technical problem to be solved in the utility model is to provide generation and the wall sticking phenomenon of a kind of coke powder that can be avoided, And it can ensure the spray drying system of dry adequacy.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution:A kind of spray drying system, including Fan house, spray drying tower and fluid bed;
Be connected between the top of the fan house and the spray drying tower spraying hot gas inlet pipe, it is described spraying hot gas into First Heat Exchanger is installed on pipe, air curtain air-flow inlet pipe is connected between the fan house and the top of the spray drying tower, Second heat exchanger is installed on the air curtain air-flow inlet pipe, the air curtain air-flow inlet pipe positioned at second heat exchanger and described Fluidisation hot gas inlet pipe, the discharge port of the spray drying tower are connected between part and the fluid bed between spray drying tower Connected with the feed inlet of the fluid bed.
Further, more than one cyclone separator, the gas outlet of the spray drying tower and the fluidisation are further included Air inlet of the gas outlet respectively with each cyclone separator of bed connects, the discharge port of each cyclone separator respectively with institute State spray drying tower connection.
Further, roots blower is further included, wind is connected between the fan house and the air inlet of the roots blower Machine hot gas inlet pipe, is provided with the 3rd heat exchanger on the wind turbine hot gas inlet pipe, the gas outlet of the roots blower respectively with each institute State cyclone separator connection.
Further, the fluid bed is three-stage fluid bed, and the fluidisation hot gas inlet pipe has three air outlet pipes, three The air outlet pipe is connected with three sections of air inlets of the fluid bed respectively, and is mounted on cooler in each air outlet pipe (10)。
Further, filter is installed in the fan house.
Further, dehumidifier is installed in the fan house.
Further, the first wind turbine, the second wind turbine and the 3rd wind turbine are installed, being respectively used to will be described in the fan house In the wind turbine indoor air input spraying hot gas inlet pipe, the air curtain air-flow inlet pipe and the second fluidisation hot gas inlet pipe.
Further, storage tank is further included, the material that the discharge port for receiving from the fluid bed flows out.
The beneficial effects of the utility model are embodied in:
The utility model is since there is provided air curtain air-flow inlet pipe, when in use, the indoor air of wind turbine is via air curtain air-flow Inlet pipe enters the top of spray drying tower, therefore can stop that material continues to float and reach top contact to high-temperature gas, so that The generation of the coke powder avoided and wall sticking phenomenon, and air curtain air-flow is generally heated to 50 DEG C of left sides by the heating of the second heat exchanger The right side, can also play dry effect, and another part air-flow can also be via fluidisation hot gas inlet pipe into fluidized bed, as stream Change bed hot gas source, so as to simplify structure, improve practicality, and pass through the dried material of spray drying tower subsequently into fluid bed Further dried, it is ensured that dry adequacy, drying effect are good.
The utility model can be avoided wasting by cyclone separator with recovered material, reduce dust, while can avoid producing Give birth to moisture regain phenomenon and cause microorganism exceeded, product quality is high.
Brief description of the drawings
Fig. 1 is the structure diagram of one embodiment of the utility model.
In attached drawing the mark of each component for:1 fan house, 11 first wind turbines, 12 second wind turbines, 13 the 3rd wind turbines, 2 sprayings are dry Dry tower, 3 fluid beds, 4 cyclone separators, 5 roots blowers, 6 First Heat Exchangers, 7 second heat exchangers, 8 the 3rd heat exchangers, 9 storings Tank, 10 coolers, a1 spraying hot gas inlet pipe, a2 air curtain air-flows inlet pipe, a3 fluidisation hot gas inlet pipe, a4 wind turbine hot gas inlet pipes.
Embodiment
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that do not conflicting In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Referring to Fig. 1.
The utility model spray drying system, including fan house 1, spray drying tower 2 and fluid bed 3;
Spraying hot gas inlet pipe a1, the spraying heat are connected between the top of the fan house 1 and the spray drying tower 2 First Heat Exchanger 6 is installed on gas inlet pipe a1, air curtain is connected between the top of the fan house 1 and the spray drying tower 2 Second heat exchanger 7 is installed, being located at for the air curtain air-flow inlet pipe a2 is described on air-flow inlet pipe a2, the air curtain air-flow inlet pipe a2 Fluidisation hot gas inlet pipe a3 is connected between part and the fluid bed 3 between second heat exchanger 7 and the spray drying tower 2, The discharge port of the spray drying tower 2 is connected with the feed inlet of the fluid bed 3.
When the utility model is used, the indoor air of wind turbine is via spraying hot gas inlet pipe, and after First Heat Exchanger heats Enter spray drying tower from the top of spray drying tower, temperature is about 180 DEG C or so, material via spray drying tower feed inlet Into, due to the effect of air-flow, partial material can float, but since the utility model is also provided with air curtain air-flow inlet pipe, In use, the indoor air of wind turbine enters the top of spray drying tower via air curtain air-flow inlet pipe, therefore it can stop that material continues Float and reach top contact to high-temperature gas, so that generation and the wall sticking phenomenon of the coke powder avoided, and air curtain air-flow passes through The heating of second heat exchanger, is generally heated to 70 DEG C or so, can also play dry effect, and another part air-flow can be with Via fluidisation hot gas inlet pipe into fluidized bed, as fluid bed heat source of the gas, so that simplified structure, improves practicality, and pass through spray The dried material of mist drying tower is further dried subsequently into fluid bed, it is ensured that dry adequacy, dry effect Fruit is good.
In specific implementation, filter (not shown) is installed in the fan house 1, for filtering the indoor air of wind turbine, Preferably, dehumidifier (not shown) is installed in the fan house 1, for removing the moisture in the indoor air of wind turbine.
In one embodiment, the first wind turbine 11, the second wind turbine 12 and the 3rd wind turbine 13 are installed in the fan house 1, point Yong Yu not be by air input spraying hot gas inlet pipe a1, the air curtain air-flow inlet pipe a2 and the second in the fan house 1 Change in hot gas inlet pipe a3.Facilitate the control of respective air-flow.
In one embodiment, more than one cyclone separator 4, the gas outlet of the spray drying tower 2 and institute are further included State air inlet of the gas outlet of fluid bed 3 respectively with each cyclone separator 4 to connect, the discharging of each cyclone separator 4 Mouth is connected with the spray drying tower 2 respectively.So design, can be arranged spray drying tower and fluid bed by cyclone separator Material recycle in the gas gone out reduces the waste of material, and can reduce the generation of dust in spray drying tower.
In one embodiment, roots blower 5 is further included, between the fan house 1 and the air inlet of the roots blower (5) It is connected with wind turbine hot gas inlet pipe a4, the wind turbine hot gas inlet pipe a4 and the 3rd heat exchanger 8 is installed, the roots blower 5 goes out Gas port is connected with each cyclone separator 4 respectively.Spray drying tower and the gas temperature of fluid bed discharge are about 100 DEG C of left sides The right side, temperature is excessive, and the utility model makees above-mentioned design, is to be passed through the slightly lower air-flow of temperature into cyclone separator, uses When, the indoor air of wind turbine enters roots blower via wind turbine hot gas inlet pipe after the heating of the 3rd heat exchanger, is generally heated to 50 DEG C or so, achieve the purpose that cooling, to avoid viscous powder phenomenon is produced.
In addition, in the prior art, cyclone separator generally uses room temperature wind regime, excessive (90 ° so when humidity of materials Left and right) when, room temperature wind regime easily causes after being combined with material and moisture is included in material, or moisture is uneven, causes finished product to produce Get damp again phenomenon, and it is exceeded to ultimately cause microorganism.And the utility model does above-mentioned design, the outlet air of roots blower is heated (50 DEG C or so), gas flow temperature is slightly higher, and the gas with certain temperature that material is discharged with spray drying tower and fluid bed is together Into cyclone separator, and cyclone separator can make material uniform decrease in temperature by spiral up draft, so as to avoid foregoing existing As.
In one embodiment, the fluid bed 3 is three-stage fluid bed 3, and the fluidisation hot gas inlet pipe a3 has three and goes out Tracheae a31, three air outlet pipe a31 are connected with three sections of air inlets of the fluid bed 3 respectively, and each air outlet pipe a31 On be mounted on cooler 10.This fluidized bed drying effect is good, and supplies reasonable, simple in structure, practicality height.
Cooler is used to for the temperature of air-flow to be reduced to required temperature, when it is implemented, one section of fluid bed into air control System is at 70 DEG C, and at 50 DEG C, one section of inlet air of fluid bed is controlled at 25-30 DEG C for two sections of inlet airs control of fluid bed.It is of course also possible to It is adjusted according to specifically used needs.Each heat exchanger uses plate heat exchanger, and effect is reliable.
In one embodiment, the second fluidisation hot gas inlet pipe a3 is located at the 3rd heat exchanger 8 and the fan house 1 Between part and the roots blower 5 air inlet between be connected with gas source pipe a6.So design, it is equally indoor with wind turbine Source of the gas of the air as roots blower, without in addition being anticipated to air, as long as to the indoor air of air Reason, can reduce operation, cost-effective.
In one embodiment, storage tank 9 is further included, the material that the discharge port for receiving from the fluid bed 3 flows out.
It should be understood that example as described herein and embodiment are not intended to limit the present invention, originally only for explanation Field technology personnel can make various modifications or change according to it, where within the spirit and principles of the present invention, be made Any modification, equivalent substitution, improvement and etc., should be included within the scope of protection of this utility model.

Claims (8)

  1. A kind of 1. spray drying system, it is characterised in that:Including fan house (1), spray drying tower (2) and fluid bed (3);
    Spraying hot gas inlet pipe (a1), the spraying are connected between the top of the fan house (1) and the spray drying tower (2) First Heat Exchanger (6) is installed, between the fan house (1) and the top of the spray drying tower (2) on hot gas inlet pipe (a1) Air curtain air-flow inlet pipe (a2) is connected with, the second heat exchanger (7), the air curtain air-flow are installed on the air curtain air-flow inlet pipe (a2) The part and the fluid bed (3) between second heat exchanger (7) and the spray drying tower (2) of inlet pipe (a2) it Between be connected with fluidisation hot gas inlet pipe (a3), the discharge port of the spray drying tower (2) and the feed inlet of the fluid bed (3) connect It is logical.
  2. 2. spray drying system as claimed in claim 1, it is characterised in that:More than one cyclone separator (4) is further included, The gas outlet of the spray drying tower (2) and the gas outlet of the fluid bed (3) respectively with each cyclone separator (4) into Gas port connects, and the discharge port of each cyclone separator (4) is connected with the spray drying tower (2) respectively.
  3. 3. spray drying system as claimed in claim 2, it is characterised in that:Further include roots blower (5), the fan house (1) wind turbine hot gas inlet pipe (a4) is connected between the air inlet of the roots blower (5), on the wind turbine hot gas inlet pipe (a4) 3rd heat exchanger (8) is installed, the gas outlet of the roots blower (5) is connected with each cyclone separator (4) respectively.
  4. 4. spray drying system as claimed in claim 1 or 2, it is characterised in that:The fluid bed (3) is three-stage fluid bed (3), the fluidisation hot gas inlet pipe (a3) has three air outlet pipes (a31), three air outlet pipes (a31) respectively with the fluidisation Three sections of air inlets connection of bed (3), and cooler (10) is mounted in each air outlet pipe (a31).
  5. 5. spray drying system as claimed in claim 1 or 2, it is characterised in that:Filtering is installed in the fan house (1) Machine.
  6. 6. spray drying system as claimed in claim 1 or 2, it is characterised in that:Dehumidifying is installed in the fan house (1) Machine.
  7. 7. spray drying system as claimed in claim 1 or 2, it is characterised in that:The first wind is installed in the fan house (1) Machine (11), the second wind turbine (12) and the 3rd wind turbine (13), are respectively used to the air in the fan house (1) inputting the spraying In hot gas inlet pipe (a1), the air curtain air-flow inlet pipe (a2) and the second fluidisation hot gas inlet pipe (a3).
  8. 8. spray drying system as claimed in claim 1 or 2, it is characterised in that:Further include storage tank (9), for receive from The material of the discharge port outflow of the fluid bed (3).
CN201721387489.8U 2017-10-25 2017-10-25 A kind of spray drying system Active CN207356601U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721387489.8U CN207356601U (en) 2017-10-25 2017-10-25 A kind of spray drying system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721387489.8U CN207356601U (en) 2017-10-25 2017-10-25 A kind of spray drying system

Publications (1)

Publication Number Publication Date
CN207356601U true CN207356601U (en) 2018-05-15

Family

ID=62421241

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721387489.8U Active CN207356601U (en) 2017-10-25 2017-10-25 A kind of spray drying system

Country Status (1)

Country Link
CN (1) CN207356601U (en)

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