CN116678184B - Composite vitamin feed drying device and processing technology thereof - Google Patents
Composite vitamin feed drying device and processing technology thereof Download PDFInfo
- Publication number
- CN116678184B CN116678184B CN202310934956.8A CN202310934956A CN116678184B CN 116678184 B CN116678184 B CN 116678184B CN 202310934956 A CN202310934956 A CN 202310934956A CN 116678184 B CN116678184 B CN 116678184B
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- 238000001035 drying Methods 0.000 title claims abstract description 98
- 229940088594 vitamin Drugs 0.000 title claims abstract description 33
- 229930003231 vitamin Natural products 0.000 title claims abstract description 33
- 235000013343 vitamin Nutrition 0.000 title claims abstract description 33
- 239000011782 vitamin Substances 0.000 title claims abstract description 33
- 238000012545 processing Methods 0.000 title claims abstract description 15
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 239000002131 composite material Substances 0.000 title description 2
- 150000003722 vitamin derivatives Chemical class 0.000 title description 2
- -1 compound vitamin Chemical class 0.000 claims abstract description 29
- 238000012216 screening Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 238000005338 heat storage Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000005054 agglomeration Methods 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 claims description 3
- 238000007605 air drying Methods 0.000 claims description 3
- 239000013590 bulk material Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 208000000412 Avitaminosis Diseases 0.000 description 1
- 208000035240 Disease Resistance Diseases 0.000 description 1
- 206010021135 Hypovitaminosis Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 208000030401 vitamin deficiency disease Diseases 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
-
- 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
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- 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
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- 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
-
- 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
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/16—Chambers, containers, receptacles of simple construction mainly closed, e.g. drum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a compound vitamin feed drying device and a processing technology thereof, which belong to the technical field of material drying equipment, and comprise a rotary kiln, wherein the rotary kiln comprises two kiln heads, and a kiln segment is arranged between the two kiln heads through a bearing; the bottom of the kiln section is provided with a rotary driver and a rotary guide; the device comprises a distributor, a bulk screening component, a tail end drying component and a drying heater, wherein the tail end drying component comprises a long strip pipe column formed by a plurality of long strip pipes, and the top and the bottom of the long strip pipes are respectively connected with an upper buffer pipe and a lower buffer pipe through rotary valves; the upper buffer tube is fixed with the blanking flange; the lower buffer tube is connected to the discharger; the drying process sequentially comprises the following steps: the compound vitamin feed drying device and the processing technology thereof can form a complete compound vitamin feed drying processing line to realize continuous feeding, drying and discharging; and the safety of the drying process is high.
Description
Technical Field
The invention particularly relates to a compound vitamin feed drying device and a processing technology thereof, and belongs to the technical field of material drying equipment.
Background
The compound vitamin feed can supplement vitamins in the feed, prevent vitamin deficiency, strengthen disease resistance, promote growth and development and improve feed conversion rate; the existing compound vitamin feed is usually mixed with compound vitamin powder or sprayed compound vitamin liquid in the fermented feed; therefore, when in package and transportation, the compound vitamin feed needs to be dried, and existing drying equipment comprises the following steps: chinese patent publication No.: CN112656014a discloses a floating adjustment type compound vitamin feed drying device and a processing technology thereof, wherein the device comprises a drying bin body, a pressing driving mechanism, a pressing stirring mechanism and a floating adjustment mechanism; the invention realizes double adjustment of the pressing interval, adjusts the upper and lower positions of the lower rotary screen cover according to the size of the particles of the adhesive feed, then locks the nut to be connected with the side wall of the drying bin body in a rotary manner to realize the positioning of the lower rotary screen cover, and rotates the rotary rod to adjust the upper and lower positions of the upper rotary screen cover to realize the adjustment of the pressing interval; although the structure can dry the feed, the temperature stability cannot be ensured, and when the temperature has step fluctuation, the compound vitamin is easy to pyrolyze; and this structure cannot form a processing line of the system and can only handle a small amount of feed.
Disclosure of Invention
In order to solve the problems, the invention provides a compound vitamin feed drying device and a processing technology thereof, which can form a complete compound vitamin feed drying processing line to realize continuous feeding, drying and discharging; and the safety of the drying process is high.
The invention relates to a compound vitamin feed drying device, which comprises a rotary kiln, wherein the rotary kiln comprises two kiln heads, and a kiln segment is arranged between the two kiln heads through a bearing; the bottom of the kiln section is provided with a rotary driver and a rotary guide; setting all groups of rotary guides at equal height to enable the kiln segments to be in a horizontal state; the rotary driver drives the kiln segment to rotate, and the rotary guider supports and rotationally guides the rotation of the rotary kiln; two kiln heads are respectively used as end supports of the kiln section, one kiln head is used for feeding and discharging tail gas, and the other kiln head is used for heating air inlet; further comprises:
the distributing device axially penetrates through the kiln section, two ends of the distributing device are embedded into the inner side of the kiln head and are fixed with the kiln head, a hopper is arranged at one end of the distributing device, the hopper is opposite to the feeding end of the kiln head, and a plurality of strip blanking ports are formed in the bottom of the distributing device at intervals along the length direction; the distributor hopper feeds, and feeds are respectively conveyed to each section in the kiln section to wait for rotary heating;
the bulk material screening component comprises an aggregate cover movably sleeved outside the kiln section, and a blanking flange is integrally formed at the bottom of the aggregate cover; the kiln section is provided with multiple ring screening holes at the inner side of the aggregate cover; ball packing is arranged on the inner side of the kiln section; the ball particle size of the ball filler is larger than the pore diameter of the sieving hole; when the rotary kiln rotates and heats feed, the bulk screening component synchronously screens the bulk, the ball filler is utilized to break up agglomerated feed, meanwhile, the dry flow velocity low-temperature wind rapidly takes away the moisture on the surface of the broken feed, so that the surface is slightly dry, the feed loses the agglomeration force, and the loose feed is blanked through screening holes of the rotary kiln; the powder falling into the aggregate cover is continuously dried by low hot air;
the tail end drying assembly comprises a strip pipe row formed by a plurality of strip pipes, and the top and the bottom of the strip pipes are respectively connected with an upper buffer pipe and a lower buffer pipe through rotary valves; the upper buffer tube is fixed with the blanking flange; the lower buffer tube is connected to the discharger; when the upper buffer tube is accumulated to a certain height, the rotary valve rotates, quantitative feed is put into the strip tube through the valve plate, and the injection and secondary air drying are waited for;
the output end of the drying heat supply device is connected to the bottom of the strip pipe, and the upper part of the strip pipe is connected to the exhaust pipe through a filter; the exhaust pipe is connected to the kiln head air inlet section through a secondary heater; the temperature of the secondary heater is not more than 40 ℃, the temperature of the drying heater is higher than that of the secondary heater, and the temperature is not more than 80 ℃; the hot air carries out pressure injection in the strip pipe, so that the feed is dried rapidly, and the hot air discharged from the drying is pressurized by a fan of the secondary heater and is injected into the kiln section for secondary utilization.
The drying heat supply device comprises a fan, the output end of the fan is connected to a U-shaped heating pipe, the output end of the U-shaped heating pipe is connected to the bottom of the strip pipe, the U-shaped heating pipe is arranged in a heating box body, and a PCM phase change heat storage filler and an inner heater are arranged in the heating box body; the output end of the exhaust pipe is connected to the output end of the fan of the secondary heater, the heating temperature of the heater is controlled, the PCM phase change heat storage filler is utilized for carrying out heat buffering and smooth output of hot air temperature, and the heat jump is prevented from exceeding a set value, so that the pyrolysis temperature of the compound vitamin in the compound vitamin feed is prevented from being exceeded, and the safety of the drying process is high.
The rotary valve comprises a circular valve bin, flange seats are respectively arranged at the top and the bottom of the valve bin, an X-shaped valve plate is arranged on the inner side of the valve bin through a bearing, the valve plate is tightly attached to the inner side of the valve bin, one end of a valve rod of the valve plate extends out of the valve bin and is fixedly provided with a transmission fluted disc, the transmission fluted disc at the upper part of the strip pipe is respectively connected with the lower transmission fluted disc through a chain ring, and supporting lug seats are respectively fixed at the upper part and the lower part of the strip pipe; a driving motor is fixed on the supporting ear seat; a rotary encoder and a driving fluted disc are fixed on the output shaft of the driving motor; the driving fluted disc is connected with the transmission fluted disc through a chain.
The distributor comprises a semicircular first pipe section, and two ends of the first pipe section are integrally provided with circular second pipe sections; the second pipe section is movably embedded into the kiln head; one end, far away from the first pipe section, of the middle part of one second pipe section is fixed with a hopper; the hopper is communicated with the feeding end of the kiln head; a plurality of baffles are fixed in the first pipe section, the second pipe section and the hopper at intervals; a plurality of strip blanking ports are formed in one end, far away from the hopper, of the first pipe section; the strip blanking ports are arranged in a staggered manner; a conveyor belt is arranged adjacent to the inner side of the partition board; one end of the conveyor belt is arranged in the hopper, the other end of the conveyor belt is connected to the strip blanking port, and when the conveyor belt is used for distributing, feed with high moisture content is input from the feed end of the kiln head, enters the hopper, falls into the bottom of the hopper and is filled into the compartments formed by the partition plates, and then the conveyor belt works to forward transfer the feed and input the feed to all parts in the kiln section through the strip blanking port; when the rotary kiln rotates, the distributor is fixed with the kiln head, and the rotary kiln rotates along the second pipe section.
Further, the inner heater is a heat-conducting oil spiral pipe or an electric heater fixed in the heating box body; the heat conducting oil spiral pipe is connected to the heat conducting oil heating system in series.
Further, a plurality of guide pipes are fixed on the inner side of the strip pipe in an up-down staggered way through supporting legs, the guide pipes and the supporting legs are used as feed dispersing pieces, and hot air is used as a feed dispersing power source; the hot air blows the feed upwards, disperses and dries the feed, and avoids local hardening.
Further, the strip pipe is externally provided with a hot water heater, the hot water heater is used for supplementing heat, when the temporary storage period of feed in the strip pipe needs to be reduced, the hot water heater is turned on, an additional heating source is provided by the hot water heater, and the temperature of the strip pipe is kept in a stable state all the time by a hot water bath mode.
A drying processing technology of compound vitamin feed comprises the following steps:
firstly, feeding agglomerated feed, namely throwing the agglomerated feed into a feed end of a kiln head through a conveyor belt or a lifting hopper, introducing the agglomerated feed into the hopper, and then conveying the agglomerated feed into each blanking point in a kiln section through a distributing device;
secondly, preprocessing the agglomerated feed, starting a secondary heater, pumping drying hot air into the kiln segment, heating the agglomerated feed by the drying hot air, simultaneously rotating the rotary kiln, dispersing the agglomerated feed by the ball filler, guiding the dispersed feed into the aggregate cover through the screening hole while rotating, and filling the aggregate cover into an upper buffer tube, and continuously drying by the hot air in the kiln segment;
the third step, the preliminary drying feed temporarily stored in the upper buffer tube falls and fills between valve plates of the rotary valve, the rotary valve rotates, and the quantitative preliminary drying feed is sent into the strip tube by controlling the number of turns and the angle of turning of the rotary valve, the drying heater is started, heated air is driven into the bottom of the inner side of the strip tube, the preliminary drying feed is blown and dried by using blown pressure hot air, drying time is controlled, and after the drying time is reached, the rotary valve at the bottom of the strip tube is started, and the dried feed is led out from the discharger; when the rotary valve at the top of the strip pipe and the rotary valve at the bottom of the strip pipe rotate, the top and the bottom of the strip pipe are sealed, and the heating and drying inside the strip pipe are not affected.
Further, the heating temperature of the drying heater is higher than that of the secondary heater, the wind pressure of a fan of the drying heater is smaller than that of the secondary heater, and the rotary kiln rapidly brings moisture in feed out of the rotary kiln by using low-heat and high-flow-rate wind power; after the moisture in the feed is reduced, the feed enters the strip pipe again to be subjected to high-temperature air injection, so that the drying efficiency is high, and the fine drying can be performed.
Compared with the prior art, the compound vitamin feed drying device has the following advantages:
1. the drying efficiency is high, the safety is good, the compound vitamin feed is dried twice, the water on the surface of the feed is taken away rapidly by adopting high-flow-rate constant-temperature air in the first step, the quantitative feed is scattered by adopting safe high-heat blowing air in the second step, the phenomenon that the vitamins are pyrolyzed due to local heat accumulation is avoided, and the dried compound vitamin feed can keep a loose state;
2. the complete compound vitamin feed drying processing line can be formed, the rotary kiln and the front end of the strip pipe can buffer materials through the hopper and the upper buffer pipe, and the conveyor belt and the rotary valve are controlled through the set time threshold to realize intermittent continuous feeding, drying and discharging.
Drawings
Fig. 1 is a schematic diagram of the installation structure of the rotary kiln and the distributor of the invention.
Fig. 2 is a schematic diagram of the end drying assembly and drying heater mounting structure of the present invention.
Fig. 3 is a schematic view of the rotary kiln, screening holes and ball packing arrangement of the present invention.
Fig. 4 is a schematic diagram of a drying heater according to the present invention.
FIG. 5 is a schematic view of the rotary valve and elongated tube mounting structure of the present invention.
FIG. 6 is a schematic view of the installation structure of the strip pipe installation and the flow guiding pipe of the present invention.
Fig. 7 is a schematic diagram of the overall structure of the distributor and rotary kiln of the present invention.
Fig. 8 is a schematic view of the structure of the end part of the distributor and the rotary kiln after installation of the present invention.
Fig. 9 is a schematic view of a partial structure of a distributor according to the present invention.
Fig. 10 is a schematic view of the mounting structure of the strip tube and the hot water heater of the present invention.
Reference numerals: 1. kiln section, 11, screening holes, 2, rotary driver, 3, rotary guide, 4, distributor, 41, hopper, 42, first pipe section, 43, second pipe section, 44, partition, 45, long blanking port, 46, conveyor belt, 5, aggregate cover, 51, blanking flange, 6, ball packing, 7, long pipe, 71, rotary valve, 711, valve bin, 712, flange seat, 713, valve plate, 714, driving fluted disc, 715, chain ring, 716, supporting ear seat, 717, driving motor, 718, driving fluted disc, 72, upper buffer tube, 73, lower buffer tube, 74, discharging device, 75, support leg, 76, honeycomb duct, 8, drying heater, 81, exhaust pipe, 82, secondary heater, 83, head air inlet section, 84, fan, 85, U-shaped heating pipe, 86, heating box, 87, internal heater, 88, hot water heater.
Detailed Description
Examples:
the compound vitamin feed drying device shown in fig. 1 to 10 comprises a rotary kiln, wherein the rotary kiln comprises two kiln heads, and a kiln segment 1 is arranged between the two kiln heads through a bearing; the bottom of the kiln segment 1 is provided with a rotary driver 2 and a rotary guide 3; the rotary guides 3 of each group are arranged at equal height, so that the kiln segment 1 is in a horizontal state; the rotary driver 2 drives the kiln segment to rotate, and the rotary guider 3 supports and rotationally guides the rotation of the rotary kiln; two kiln heads are respectively used as end supports of the kiln section 1, one kiln head is used for feeding and discharging tail gas, and the other kiln head is used for heating air inlet; further comprises:
the distributing device 4 axially penetrates through the kiln segment 1, two ends of the distributing device 4 are embedded into the inner side of the kiln head and are fixed with the kiln head, a hopper 41 is arranged at one end of the distributing device 4, the hopper 41 is opposite to the feeding end of the kiln head, and a plurality of strip blanking openings 45 are formed in the bottom of the distributing device 4 at intervals along the length direction; the distributor hopper feeds, and feeds are respectively conveyed to each section in the kiln section to wait for rotary heating;
the bulk material screening component comprises an aggregate cover 5 movably sleeved outside the kiln section 1, and a blanking flange 51 is integrally formed at the bottom of the aggregate cover 5; the kiln segment 1 is provided with a multi-ring screening hole 11 at the inner side of the aggregate cover 5; the inner side of the kiln segment 1 is provided with a ball packing 6; the ball particle size of the ball packing 6 is larger than the pore diameter of the sieving hole 11; when the rotary kiln rotates and heats feed, the bulk screening component synchronously screens the bulk, the ball packing 6 is utilized to scatter the agglomerated feed, meanwhile, the dry flow velocity low-temperature wind rapidly takes away the moisture on the surface of the scattered feed, so that the surface is slightly dry, the feed loses the agglomeration force, and the loose feed is blanked through the screening holes 11 of the rotary kiln; the powder falling into the aggregate cover 5 is continuously dried by low hot air;
the tail end drying assembly comprises a strip pipe column formed by a plurality of strip pipes 7, and the top and the bottom of the strip pipes 7 are respectively connected with an upper buffer pipe 72 and a lower buffer pipe 73 through rotary valves 71; the upper buffer tube 72 is fixed with the blanking flange 51; the lower buffer tube 73 is connected to a discharger 74; when the upper buffer tube is accumulated to a certain height, the rotary valve rotates, quantitative feed is put into the strip tube through the valve plate, and the injection and secondary air drying are waited for;
the output end of the drying heat supplier 8 is connected to the bottom of the strip pipe 7, and the upper part of the strip pipe 7 is connected to an exhaust pipe 81 through a filter; the exhaust pipe 81 is connected to a kiln head air inlet section 83 through a secondary heater 82; the temperature of the secondary heater 82 is not more than 40 ℃, the temperature of the drying heater 8 is higher than the temperature of the secondary heater, and the temperature is not more than 80 ℃; the hot air carries out pressure injection in the strip pipe, so that the feed is dried rapidly, and the hot air discharged from the drying is pressurized by a fan of the secondary heater and is injected into the kiln section for secondary utilization.
As shown in fig. 4, the drying heat supplier comprises a fan 84, the output end of the fan 84 is connected to a U-shaped heating pipe 85, the output end of the U-shaped heating pipe 85 is connected to the bottom of the strip pipe 7, the U-shaped heating pipe 85 is installed in a heating box 86, and PCM phase change heat storage filler and an inner heater 87 are installed in the heating box 86; the output end of the exhaust pipe 81 is connected to the output end of the fan of the secondary heater 82, the heating temperature of the heater is controlled, and the PCM phase change heat storage filler is utilized to carry out heat buffering and smooth output of hot air temperature, so that heat jump is prevented from exceeding a set value, the pyrolysis temperature of the compound vitamin in the compound vitamin feed is prevented from being exceeded, and the safety of the drying process is high; the inner heater 87 is a heat-conducting oil spiral pipe or an electric heater fixed in the heating box 86; the heat conducting oil spiral pipe is connected to the heat conducting oil heating system in series.
As shown in fig. 5, the rotary valve 71 includes a circular valve housing 711, flange seats 712 are respectively disposed at the top and bottom of the valve housing 711, an X-shaped valve plate 713 is disposed inside the valve housing 711 through a bearing, the valve plate 713 is tightly attached to the inner side of the valve housing 711, one end of a valve rod of the valve plate 713 extends out of the valve housing 711 and is fixed with a transmission fluted disc 714, the transmission fluted disc 714 at the upper part of the long tube and the lower transmission fluted disc 714 are respectively connected through links 715, and support ear seats 716 are respectively fixed at the upper part and the lower part of the long tube; a driving motor 717 is fixed on the supporting ear seat; a rotary encoder and a driving fluted disc 718 are fixed on the output shaft of the driving motor 717; the driving fluted disc 718 is connected with the driving fluted disc 714 through a chain; the rotation number and the rotation angle of the output shaft of the driving motor are measured through the rotary encoder, so that the rotation number and the current angle of the valve plate are determined.
As shown in fig. 6, the inner side of the strip pipe 7 is fixedly provided with a plurality of guide pipes 76 in a vertically staggered manner through support legs 75, the guide pipes 76 and the support legs 75 are used as feed dispersing members, and hot air is used as a feed dispersing power source; the hot air blows the feed upwards, disperses and dries the feed, and avoids local hardening.
As shown in fig. 7 to 9, the distributor 4 includes a semicircular first pipe section 42, and two ends of the first pipe section 42 are integrally formed with a circular second pipe section 43; the second pipe section 43 is movably embedded into the kiln head; one end, far away from the first pipe section 42, of the middle part of one second pipe section 43 is fixed with a hopper 41; the hopper 41 is communicated with the feeding end of the kiln head; a plurality of partition plates 44 are fixed in the first pipe section 42, the second pipe section 43 and the hopper 41 at intervals; a plurality of strip blanking ports 45 are formed in one end, away from the hopper 41, of the first pipe section 42; the strip blanking port 45 is arranged in a staggered manner; a conveyor belt 46 is arranged adjacent to the inner side of the partition plate 44; one end of the conveyor belt 46 is arranged in the hopper 41, the other end of the conveyor belt 46 is connected to the strip blanking port 45, when the feed with high moisture content is fed from the feeding end of the kiln head, the feed enters the hopper 41, then falls into the bottom of the hopper 41 and is filled into the compartments formed by the partition plates 44, and then the conveyor belt 46 works to forward transfer the feed and feed the parts in the kiln section through the strip blanking port 45; when the rotary kiln rotates, the distributor is fixed to the kiln head, and the rotary kiln rotates along the second pipe section 43.
As shown in fig. 10, the strip tube 7 is externally provided with a hot water heater 88, and the hot water heater 88 is used for supplementing heat, when the temporary storage period of the feed in the strip tube needs to be reduced, the hot water heater is turned on, an additional heating source is provided by the hot water heater, and the temperature of the strip tube is kept in a stable state all the time by using a hot water bath mode.
A drying processing technology of compound vitamin feed comprises the following steps:
firstly, feeding agglomerated feed, namely throwing the agglomerated feed into a feed end of a kiln head through a conveyor belt or a lifting hopper, introducing the agglomerated feed into the hopper, and then conveying the agglomerated feed into each blanking point in a kiln section through a distributing device;
secondly, preprocessing the agglomerated feed, starting a secondary heater, pumping drying hot air into the kiln segment, heating the agglomerated feed by the drying hot air, simultaneously rotating the rotary kiln, dispersing the agglomerated feed by the ball filler, guiding the dispersed feed into the aggregate cover through the screening hole while rotating, and filling the aggregate cover into an upper buffer tube, and continuously drying by the hot air in the kiln segment;
the third step, the preliminary drying feed temporarily stored in the upper buffer tube falls and fills between valve plates of the rotary valve, the rotary valve rotates, and the quantitative preliminary drying feed is sent into the strip tube by controlling the number of turns and the angle of turning of the rotary valve, the drying heater is started, heated air is driven into the bottom of the inner side of the strip tube, the preliminary drying feed is blown and dried by using blown pressure hot air, drying time is controlled, and after the drying time is reached, the rotary valve at the bottom of the strip tube is started, and the dried feed is led out from the discharger; when the rotary valve at the top of the strip pipe and the rotary valve at the bottom of the strip pipe rotate, the top and the bottom of the strip pipe are sealed, the heating and drying of the inside of the strip pipe are not affected,
the drying heater is used for heating the feed, the heating temperature of the drying heater is higher than that of the secondary heater, the wind pressure of a fan of the drying heater is smaller than that of a fan of the secondary heater, and the rotary kiln rapidly brings moisture in the feed out of the rotary kiln by using low-heat and high-flow-rate wind power; after the moisture in the feed is reduced, the feed enters the strip pipe again to be subjected to high-temperature air injection, so that the drying efficiency is high, and the fine drying can be performed.
The above embodiments are merely preferred embodiments of the present invention, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the invention are therefore intended to be embraced therein.
Claims (5)
1. The compound vitamin feed drying device comprises a rotary kiln, wherein the rotary kiln comprises two kiln heads, and a kiln segment is arranged between the two kiln heads through a bearing; the bottom of the kiln section is provided with a rotary driver and a rotary guide; the method is characterized in that: further comprises:
the distributing device axially penetrates through the kiln section, two ends of the distributing device are embedded into the inner side of the kiln head and are fixed with the kiln head, a hopper is arranged at one end of the distributing device, the hopper is opposite to the feeding end of the kiln head, and a plurality of strip blanking ports are formed in the bottom of the distributing device at intervals along the length direction;
the bulk material screening component comprises an aggregate cover movably sleeved outside the kiln section, and a blanking flange is integrally formed at the bottom of the aggregate cover; the kiln section is provided with multiple ring screening holes at the inner side of the aggregate cover; ball packing is arranged on the inner side of the kiln section; the ball particle size of the ball filler is larger than the pore diameter of the sieving hole; when the rotary kiln rotates and heats feed, the bulk screening component synchronously screens bulk, agglomerated feed is scattered through ball filler, meanwhile, the surface moisture of the scattered feed is rapidly taken away by dry flow velocity low-temperature wind, so that the surface is slightly dry, the feed loses agglomeration force, and the loose feed is blanked through screening holes of the rotary kiln; the powder falling into the aggregate cover is continuously dried by low hot air;
the tail end drying assembly comprises a strip pipe row formed by a plurality of strip pipes, and the top and the bottom of the strip pipes are respectively connected with an upper buffer pipe and a lower buffer pipe through rotary valves; the upper buffer tube is fixed with the blanking flange; the lower buffer tube is connected to the discharger; when the upper buffer tube is accumulated to a certain height, the rotary valve rotates, quantitative feed is put into the strip tube through the valve plate, and the injection and secondary air drying are waited for;
the output end of the drying heat supply device is connected to the bottom of the strip pipe, and the upper part of the strip pipe is connected to the exhaust pipe through a filter; the exhaust pipe is connected to the kiln head air inlet section through a secondary heater; the heating temperature of the drying heater is higher than that of the secondary heater, hot air carries out pressure injection in the strip pipe, so that the feed is dried rapidly, and hot air discharged from drying is pressurized by a fan of the secondary heater and is injected into a kiln section for secondary utilization;
the drying heat supply device comprises a fan, the output end of the fan is connected to a U-shaped heating pipe, the output end of the U-shaped heating pipe is connected to the bottom of the strip pipe, the U-shaped heating pipe is arranged in a heating box body, and a PCM phase change heat storage filler and an inner heater are arranged in the heating box body; the output end of the exhaust pipe is connected to the output end of the fan of the secondary heater; the wind pressure of a fan of the drying heat supply device is smaller than that of a fan of the secondary heater;
the rotary valve comprises a circular valve bin, flange seats are respectively arranged at the top and the bottom of the valve bin, an X-shaped valve plate is arranged on the inner side of the valve bin through a bearing, the valve plate is tightly attached to the inner side of the valve bin, one end of a valve rod of the valve plate extends out of the valve bin and is fixedly provided with a transmission fluted disc, the transmission fluted disc at the upper part of the strip pipe is respectively connected with the lower transmission fluted disc through a chain ring, and supporting lug seats are respectively fixed at the upper part and the lower part of the strip pipe; a driving motor is fixed on the supporting ear seat; a rotary encoder and a driving fluted disc are fixed on the output shaft of the driving motor; the driving fluted disc is connected with the transmission fluted disc through a chain;
the distributor comprises a semicircular first pipe section, and two ends of the first pipe section are integrally provided with circular second pipe sections; the second pipe section is movably embedded into the kiln head; one end, far away from the first pipe section, of the middle part of one second pipe section is fixed with a hopper; the hopper is communicated with the feeding end of the kiln head; a plurality of baffles are fixed in the first pipe section, the second pipe section and the hopper at intervals; a plurality of strip blanking ports are formed in one end, far away from the hopper, of the first pipe section; the strip blanking ports are arranged in a staggered manner; a conveyor belt is arranged adjacent to the inner side of the partition board; one end of the conveyor belt is arranged in the hopper, and the other end of the conveyor belt is connected to the strip blanking port.
2. The multivitamin feed drying device of claim 1, wherein: the inner heater is a heat-conducting oil spiral pipe or an electric heater fixed in the heating box body; the heat conducting oil spiral pipe is connected to the heat conducting oil heating system in series.
3. The multivitamin feed drying device of claim 1, wherein: a plurality of guide pipes are fixed on the inner side of the strip pipe in an up-down staggered mode through supporting legs.
4. The multivitamin feed drying device of claim 1, wherein: the strip pipe is externally provided with a hot water heater.
5. A drying processing technology of compound vitamin feed is characterized in that: the compound vitamin feed drying device comprises a compound vitamin feed drying device according to any one of claims 1 to 4, and the processing technology comprises the following steps:
firstly, feeding agglomerated feed, namely throwing the agglomerated feed into a feed end of a kiln head through a conveyor belt or a lifting hopper, introducing the agglomerated feed into the hopper, and then conveying the agglomerated feed into each blanking point in a kiln section through a distributing device;
secondly, preprocessing the agglomerated feed, starting a secondary heater, pumping drying hot air into the kiln segment, heating the agglomerated feed by the drying hot air, simultaneously rotating the rotary kiln, dispersing the agglomerated feed by the ball filler, guiding the dispersed feed into the aggregate cover through the screening hole while rotating, and filling the aggregate cover into an upper buffer tube, and continuously drying by the hot air in the kiln segment;
the third step, the preliminary drying feed temporarily stored in the upper buffer tube falls and fills between valve plates of the rotary valve, the rotary valve rotates, and the quantitative preliminary drying feed is sent into the strip tube by controlling the number of turns and the angle of turning of the rotary valve, the drying heater is started, heated air is driven into the bottom of the inner side of the strip tube, the preliminary drying feed is blown and dried by using blown pressure hot air, drying time is controlled, and after the drying time is reached, the rotary valve at the bottom of the strip tube is started, and the dried feed is led out from the discharger; when the rotary valve at the top of the strip pipe and the rotary valve at the bottom of the strip pipe rotate, the top and the bottom of the strip pipe are sealed, and the heating and drying inside the strip pipe are not affected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310934956.8A CN116678184B (en) | 2023-07-28 | 2023-07-28 | Composite vitamin feed drying device and processing technology thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310934956.8A CN116678184B (en) | 2023-07-28 | 2023-07-28 | Composite vitamin feed drying device and processing technology thereof |
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| CN116678184A CN116678184A (en) | 2023-09-01 |
| CN116678184B true CN116678184B (en) | 2023-10-20 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206944635U (en) * | 2017-05-17 | 2018-01-30 | 重庆旺满生物科技有限公司 | A kind of organic fertilizer dries rotary structure |
| CN107990653A (en) * | 2018-01-10 | 2018-05-04 | 中国农业科学院饲料研究所 | A kind of drying cooling system for being used to produce curing mash feed |
| KR20200080766A (en) * | 2018-12-27 | 2020-07-07 | 윤기호 | Feeding equipment with improved drying efficiency |
| CN215930464U (en) * | 2021-07-12 | 2022-03-01 | 南京牛奔奔生物科技有限公司 | Filter drying integrated device for feed additive production |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016044394A1 (en) * | 2014-09-16 | 2016-03-24 | Gala Industries, Inc. | Systems and methods for drying pellets and other materials |
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- 2023-07-28 CN CN202310934956.8A patent/CN116678184B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206944635U (en) * | 2017-05-17 | 2018-01-30 | 重庆旺满生物科技有限公司 | A kind of organic fertilizer dries rotary structure |
| CN107990653A (en) * | 2018-01-10 | 2018-05-04 | 中国农业科学院饲料研究所 | A kind of drying cooling system for being used to produce curing mash feed |
| KR20200080766A (en) * | 2018-12-27 | 2020-07-07 | 윤기호 | Feeding equipment with improved drying efficiency |
| CN215930464U (en) * | 2021-07-12 | 2022-03-01 | 南京牛奔奔生物科技有限公司 | Filter drying integrated device for feed additive production |
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| CN116678184A (en) | 2023-09-01 |
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