CN207019449U - A kind of energy saving and environment friendly residual heat using device of spray dryer - Google Patents

A kind of energy saving and environment friendly residual heat using device of spray dryer Download PDF

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Publication number
CN207019449U
CN207019449U CN201720847916.XU CN201720847916U CN207019449U CN 207019449 U CN207019449 U CN 207019449U CN 201720847916 U CN201720847916 U CN 201720847916U CN 207019449 U CN207019449 U CN 207019449U
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CN
China
Prior art keywords
spray dryer
protection
residual heat
tower
tracheae
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Expired - Fee Related
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CN201720847916.XU
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Chinese (zh)
Inventor
安永斌
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CHENGDU HONGAN BIOTECHNOLOGY Co Ltd
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CHENGDU HONGAN BIOTECHNOLOGY Co Ltd
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Priority to CN201720847916.XU priority Critical patent/CN207019449U/en
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Publication of CN207019449U publication Critical patent/CN207019449U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of energy saving and environment friendly residual heat using device of spray dryer, it is related to drying-granulating apparatus field, suitable for the nozzle at the top of spray dryer, the nozzle includes the inside and outside jet pipe being arranged and protection tracheae, protection tracheae outer end closing and the inner end opening being passed through inside spray dryer tower body, at least one protection gas entrance is offered on protection tracheae, the jet pipe outer end is arranged to material inlet, the inner end that jet pipe is passed through inside spray dryer tower body is connected with nozzle head, the nozzle head is provided with the material jet towards spray dryer tower body internal spray material, the material jet is positioned at protection tracheal strips;The residual heat using device is located between protection gas entrance and the escape pipe of cyclone separator, and the residual heat using device is made up of air exhauster, the adsorption tanks being connected with each other.

Description

A kind of energy saving and environment friendly residual heat using device of spray dryer
Technical field
It the utility model is related to drying-granulating apparatus field, and in particular to a kind of energy saving and environment friendly waste heat of spray dryer Utilize device.
Background technology
Spray dryer is the common apparatus for producing the heat-sensitive materials such as powdered food, medicine, biological products at this stage.Spray The principle of heating of mist drying machine is suction air and is raised temperature using electric heating tube or steam, then makes device interior air Circulate hot-air, and the feed liquid of atomization process is carried out into flash evapn forms dry powder, and dry powder reaches with flowing to for hot-air By powder drum, and hot-air is discharged from the exhaust outlet of exhaust blower.
In the spray dryer course of work, liquid material is sprayed into trickle misty liquid droplets through liquid material atomising device, Contacted with hot blast cocurrent or countercurrent, drying is powder finished product within the extremely short time.Finished product is continuously exported by drying tower bottom, Waste gas material containing micronic dust collects or washed emptying by cloth bag collector.Yet with liquid material be atomized into after droplet directly with High-temperature hot-air contacts, and top layer material, which can occur rapidly to dry, forms shell, internal as temperature constantly raises, after moisture therein Continuous evaporation process forms pressure, causes the microballoon that appearance is molded easily to burst, and produces special-shaped and a large amount of fine powders, therefore above-mentioned There are the following problems for spray dryer:The atomizing particle size distribution of atomizer is wide, it is larger to produce fine powder amount;The particle of shaping Easily there is abnormity, sphericity is not high;To ensure drying effect, outlet exhaust temperature is higher, carries a large amount of waste heats and fails abundant profit With.
Meanwhile just discharged, wasted from the exhaust outlet discharge of exhaust blower for existing spray dryer, hot-air Substantial amounts of heat, and there is the production of pollution gas for some, often it is mingled with to environment in the hot-air of discharge The pollutant of harm is produced, directly discharge influences environment.
The patented technology of Patent No. 201120356913.9 provides a kind of apparatus for reusing residual heat, including dry with spraying The air intake and be arranged near the air inlet of heating bucket of the spray dryer that the air outlet of the exhaust blower of dry machine connects Outlet air end, the outlet air end connect the air intake, and the outlet air end has an air port, and the air port is towards the spray drying Machine heats the air inlet of bucket, and the apparatus for reusing residual heat is that misclosure waste heat recycles structure, has certain waste heat recovery Effect,
But substantial amounts of heat leakage be present, while pollutant therein still distributes and environment is polluted in air, secondly, again Contain substantial amounts of solvent in the hot gas utilized, do not utilize dry progress.
Utility model content
The utility model provides a kind of energy saving and environment friendly residual heat using device of spray dryer, to solve existing spraying Drying machine grain forming effect is poor, heat utilization rate is low, the technical problem of pollution environment.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is summarized as follows:
The energy saving and environment friendly residual heat using device of a kind of spray dryer, suitable for the nozzle at the top of spray dryer, institute Stating nozzle includes the inside and outside jet pipe being arranged and protection tracheae, described to protect the closing of tracheae outer end and be passed through in spray dryer tower body The inner end opening in portion, protects and at least one protection gas entrance is offered on tracheae, and the jet pipe outer end is arranged to material inlet, sprayed The inner end that pipe is passed through inside spray dryer tower body is connected with nozzle head, and the nozzle head is provided with towards inside spray dryer tower body The material jet of spraying of material, the material jet is positioned at protection tracheal strips;The residual heat using device is located at protection gas and entered Between mouth and the escape pipe of cyclone separator, the residual heat using device is made up of air exhauster, the adsorption tanks being connected with each other.
Preferably, the adsorption tanks include the cylinder for being used to accommodate adsorbent of both ends open, the cylinder both ends The end cap for sealed cylinder is equipped with, the contact surface between the end cap and cylinder is equipped with O-ring seal, described to state end Lid and mutually fixed through some connected nails between cylinder, be connected with the ventilation connecting tube extended in cylinder on two end caps, two Root ventilation connecting tube is in stagger setting.
Preferably, the air exhauster is provided with two groups, and two groups of air exhausters are connected in the air inlet and outlet of adsorption tanks respectively At mouthful.
Compared with prior art, beneficial effect caused by the utility model:
1st, energy saving and environment friendly residual heat using device provided by the utility model, the hot-air at the escape pipe of cyclone separator Through protecting gas entrance to enter the protection tracheae of nozzle after residual heat using device adsorption solvent, it is being atomized by waste heat material Before have certain heating, protection gas possesses temperature, greatly reduces the gradient of material heating, therefore droplet shape material has one The warming-up section of mitigation, so as to substantially reduce the probability that breakage of particles occurs due to drastically drying, and droplet shape material is slow at this With can fully develop shaping in temperature-rise period, avoid droplet shape material and tear too fast evaporation in atomization process in the early stage, So as to reduce the formation of special-shaped particle, the sphericity of particle is improved;Hot gas waste heat is taken full advantage of, reduces heat leakage, by original Noxious substance in this discarded hot gas, avoid polluting environment, meanwhile, the solvent in hot gas reduces, and is more beneficial for Dried material, improve drying efficiency;
2nd, to the setting of adsorption tanks, adsorbent is conveniently replaceable, ensures adsorption effect, is easy to adsorbent reactivation to recycle;
3rd, the current rate in the protection tracheae in guarantee nozzle of the restriction to air exhauster, to realize the protection to material.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of spray drying device;
Fig. 2 is the structural representation of spray dryer;
Fig. 3 is the internal structure schematic diagram of nozzle;
Fig. 4 is the structural representation of upper lid;
Fig. 5 is the structural representation of interior tower body;
Fig. 6 is the structural representation of adsorption tanks;
In figure mark for:1st, frame;2nd, material pot;3rd, spray dryer;31st, nozzle;311st, tracheae is protected;3111st, protect Protect gas entrance;312nd, jet pipe;313rd, nozzle head;3131st, material jet;32nd, upper lid;321st, outer mounting groove;322nd, interior installation Groove;33rd, interior tower body;331st, drying section;3311st, stomata;332nd, buffer part;The 333rd, ring flat-plate is installed;3331st, lower mounting groove;334、 Material outlet;34th, outer tower body;35th, connecting tube;36th, endless tube;37th, branch pipe;38th, heating pipe;4th, adsorption tanks;41st, cylinder;42nd, hold Lid;43rd, sealing ring;44th, connected nail;45th, ventilation connecting tube;5th, air heating tank;6th, escape pipe;7th, air exhauster;8th, whirlwind point From device;9th, discharging opening.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.Reality of the present utility model The mode of applying includes but is not limited to the following example.
Embodiment 1
As described in Figure 1, a set of spray drying device, including frame 1 and the material pot 2 that is fixed in frame 1, spraying are dry Dry device 3, air heating tank 5, the cyclone separator 8 that thermal source is provided, the material pot 2 and the nozzle 31 at the top of spray dryer 3 It is connected, the material outlet of the spray dryer 3 is connected with the charging aperture of cyclone separator 8, the cyclone separator 8 Energy saving and environment friendly residual heat using device is additionally provided between escape pipe 6 and nozzle 31, the discharging opening 9 of cyclone separator 8 is located at whirlwind The bottom of separator 8, for collecting dry products.
As shown in figure 3, the nozzle 31 includes the inside and outside jet pipe 312 being arranged and protection tracheae 311, the protection tracheae The inner end opening that 311 outer ends are closed and are passed through inside the tower body of spray dryer 3, protect and offer at least one guarantor on tracheae 311 Gas entrance 3111 is protected, the outer end of jet pipe 312 is arranged to material inlet, in jet pipe 312 is passed through inside the tower body of spray dryer 3 End is connected with nozzle head 313, and the nozzle head 313 is provided with the material jet towards the tower body internal spray material of spray dryer 3 3131, the material jet 3131 is in protection tracheae 311.
Energy saving and environment friendly residual heat using device therein, it is located at the nozzle 31 and cyclone separator 8 at the top of spray dryer 3 Escape pipe 6 between, specifically, be located between protection gas entrance 3111 and the escape pipe 6 of cyclone separator 8, the waste heat It is made up of using device air exhauster 7, the adsorption tanks 4 being connected with each other.
The present embodiment provide energy saving and environment friendly residual heat using device, suitable for protection tracheae 311 nozzle 31 with Between the escape pipe 6 of cyclone separator 8, the hot-air come out from the escape pipe 6 of cyclone separator 8 is reclaimed, and through adsorption tanks 4 Adsorption treatment, then realize UTILIZATION OF VESIDUAL HEAT IN.
In the present embodiment, the hot-air at the escape pipe 6 of cyclone separator 8 is after residual heat using device adsorption solvent through protecting The protection tracheae 311 that gas entrance enters nozzle 31 is protected, has certain liter before atomization by material in waste heat jet pipe 312 Temperature, while protect gas to possess temperature and be less than dry gas and be more than temperature of charge, intermediate buffering effect is played, greatly reduces material The gradient of heating, therefore droplet shape material has the warming-up section of a mitigation, so as to substantially reduce due to drastically drying generation The probability of grain rupture, and droplet shape material can fully develop shaping in the mitigation temperature-rise period, avoid mist drop Material tears the too fast evaporation in atomization process in the early stage, so as to reduce the formation of special-shaped particle, improves the sphericity of particle;Fully Hot gas waste heat is make use of, reduces heat leakage, the noxious substance in the discarded hot gas of script avoids polluting environment, together When, the solvent in hot gas reduces, and is more beneficial for dried material, improves drying efficiency.
Embodiment 2
As shown in fig. 6, further optimizing to energy saving and environment friendly residual heat using device, the adsorption tanks 4 include both ends open Be used for accommodate the cylinder 41 of adsorbent, the both ends of cylinder 41 are equipped with the end cap 42 for sealed cylinder 41, the end cap Contact surface between 42 and cylinder 41 is equipped with O-ring seal 43, described to state between end cap 42 and cylinder 41 through some connections Follow closely 44 phases to fix, the ventilation connecting tube 45 extended in cylinder 41 is connected with two end caps 42, two ventilation connecting tubes 45 are in Stagger setting;The purpose that the present embodiment is set to adsorption tanks, it is to be conveniently replaceable adsorbent, ensures adsorption effect, be easy to adsorb Agent regeneration recycles.
Embodiment 3
Energy saving and environment friendly residual heat using device is further optimized, the air exhauster 7 is provided with two groups, and two groups of air exhausters 7 divide It is not connected at air inlet and the gas outlet of adsorption tanks 4, restriction of the present embodiment to air exhauster is the protection tracheae for ensureing nozzle Middle current rate, to realize the protection to material.
Embodiment 4
As shown in Figure 2-5, set of spray drying device is further optimized, wherein, spray dryer 3 includes upper and lower two The tower body of end opening and the upper lid 32 of covering tower body upper end, it is connected with towards the nozzle 31 inside tower body, institute on the upper lid 32 Tower body is stated to be arranged interior tower body 33 and outer tower body 34 by inside and outside and formed, the top of the interior tower body 33 and outer tower body 34 with upper lid 32 Mutually fixed, the cavity formed between interior tower body 33, outer tower body 34 and upper lid 32 is hot gas cavity, is connected with below tower body towards heat Heating pipe 38 in gas cavity, the heating pipe 38 are connected with air heating tank 5;The interior tower body 33 is set respectively from top to bottom Into drying section 331, buffer part 332 and material outlet 334, some connection hot gas are evenly equipped with the side wall of the drying section 331 Stomata 3311 inside cavity and interior tower body 33.
The operation principle of the present embodiment is:Hot gas enters hot gas cavity through heating pipe 38, then through 3311 inside tower body of stomata 33 intermediate material chambers carry out uniform air inlet, and the material of drier top jet is dried, and during material declines, have all the time New drying hot gas adds, and during material declines, remains the higher temperature difference between air-flow and material, and drying effect is good; And conventional materials injection and hot gas are each provided at the structure at top, during material declines, the temperature difference between air-flow and material is gradual Diminish, the steam in its air-flow tends to saturation, and final drying effect is poor, the spraying provided compared to traditional structure, the present embodiment Operating efficiency can be improved 1.5-2 times by drier;Lateral airflow effectively can avoid material from being moved to side wall simultaneously, and then avoid thing Material is bonded in side wall.
The present embodiment provides anti-sticking wall efficient spray drier, and heating pipe 38 is no longer arranged at the top of drier, but logical The mode that hot gas cavity is set is crossed, uniformly causes material wherein in tower body to middle air inlet, the air-flow of formation from tower body side wall Between part, avoid material from being bonded in side wall, fundamentally solve material wall sticking phenomenon;Material keeps drying during declining Air-flow is continuously added into, and improves operating efficiency.
And the protection gas that energy saving and environment friendly residual heat using device provides so that there is necessarily material before atomization in jet pipe 312 Heating, while protect gas possess temperature be less than dry gas and be more than temperature of charge, play intermediate buffering effect, greatly reduce The gradient of material heating, therefore droplet shape material has the warming-up section of a mitigation, so as to substantially reduce due to drastically drying hair The probability of raw breakage of particles, the most key effect is, because droplet shape material can fully be sent out in the mitigation temperature-rise period Type is transformed into, avoids being influenceed to unite by side wall dry wind and influenceing dry and granulation in material dropping process, is preventing viscous wall Meanwhile it also ensure that the effect of granulation.
Embodiment 5
Further optimize on the basis of embodiment 4, the connection between the interior tower body 33, outer tower body 34 and upper lid 32 Relation is:The upper lid 32 is provided with installation mounting groove 322 and outer mounting groove 321 in the annular of tower body 33, outer tower body 34, The interior tower body 33, the upper end of outer tower body 34 are respectively clamped into interior mounting groove 322, in outer mounting groove 321;The interior tower body 33 delays Rush at portion 332 and be arranged with installation ring flat-plate 333, the installation ring flat-plate 333 is provided with the lower mounting groove 3331 of annular, the outer tower body 34 lower end is caught in lower mounting groove 3331.
Connected mode between the heating pipe 38 and hot gas cavity is:One is additionally provided between heating pipe 38 and hot gas cavity Individual endless tube 36, it is connected between the endless tube 36 and heating pipe 38 through at least two along the circumferential uniform branch pipe 37 of endless tube 36;Institute State and be connected between endless tube 36 and hot gas cavity through at least two along the circumferential uniform connecting tube 35 of endless tube 36.
The structure setting of the present embodiment is rationally simple, it is easy to accomplish;It is provided between heating pipe 38 and hot gas cavity Balanced air inlet so that hot gas cavity everywhere air pressure equalisation, material is by thermal balance.
Embodiment 6
Further optimize on the basis of embodiment 4, the aperture of stomata 3311 in the side wall of the drying section 331 on to It is lower to be distributed in decrement shape;The setting of this implementation causes the aperture of the stomata 3311 of upper end in the side wall of drying section 331 to be more than lower end Stomata 3311 aperture, avoid the upper end hot gas emitted dose of drying section 331 small, it is impossible to realize drying;And the lower end thing of drying section 331 Expect that content liquid is few, it is necessary to less supplement hot gas, so the present embodiment realizes the purpose of reasonable distribution hot gas.
It is embodiment of the present utility model as described above.The utility model is not limited to above-mentioned embodiment, anyone The structure change made under enlightenment of the present utility model should be learnt, it is every that there is same or like skill with the utility model Art scheme, each falls within the scope of protection of the utility model.

Claims (3)

  1. A kind of 1. energy saving and environment friendly residual heat using device of spray dryer, suitable for the nozzle at the top of spray dryer (3) (31), the nozzle (31) includes the inside and outside jet pipe (312) being arranged and protection tracheae (311), described protection tracheae (311) outer end The inner end opening closed and be passed through inside spray dryer (3) tower body, protect and offer at least one protection gas on tracheae (311) Entrance (3111), jet pipe (312) outer end are arranged to material inlet, and jet pipe (312) is passed through inside spray dryer (3) tower body Inner end be connected with nozzle head (313), the nozzle head (313) is provided with towards spray dryer (3) tower body internal spray material Material jet (3131), the material jet (3131) is in protection tracheae (311), it is characterised in that:Waste heat profit It is located at device between protection gas entrance (3111) and the escape pipe (6) of cyclone separator (8), the residual heat using device is by phase Air exhauster (7), adsorption tanks (4) composition to connect.
  2. A kind of 2. energy saving and environment friendly residual heat using device of spray dryer as claimed in claim 1, it is characterised in that:It is described Adsorption tanks (4) include the cylinder (41) for being used to accommodate adsorbent of both ends open, and cylinder (41) both ends are equipped with for close The end cap (42) of sealed tube body (41), the contact surface between the end cap (42) and cylinder (41) are equipped with O-ring seal (43), Described state mutually is fixed between end cap (42) and cylinder (41) through some connected nails (44), and extension is connected with two end caps (42) Ventilation connecting tube (45) in cylinder (41), two ventilation connecting tubes (45) are in stagger setting.
  3. A kind of 3. energy saving and environment friendly residual heat using device of spray dryer as claimed in claim 1, it is characterised in that:It is described Air exhauster (7) is provided with two groups, and two groups of air exhausters (7) are connected at air inlet and the gas outlet of adsorption tanks (4) respectively.
CN201720847916.XU 2017-07-13 2017-07-13 A kind of energy saving and environment friendly residual heat using device of spray dryer Expired - Fee Related CN207019449U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720847916.XU CN207019449U (en) 2017-07-13 2017-07-13 A kind of energy saving and environment friendly residual heat using device of spray dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720847916.XU CN207019449U (en) 2017-07-13 2017-07-13 A kind of energy saving and environment friendly residual heat using device of spray dryer

Publications (1)

Publication Number Publication Date
CN207019449U true CN207019449U (en) 2018-02-16

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ID=61484533

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN207019449U (en)

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180216

Termination date: 20190713

CF01 Termination of patent right due to non-payment of annual fee