A kind of cereal Far-infrared drying device
Technical field
The present invention relates to a kind of grain drying, particularly a kind of cereal Far-infrared drying device.
Background technology
Dry is one of most important processing link in cereal production process.So-called dry process of sloughing moisture in the mode of heat supply from material is exactly a complicated heat and mass transfer process.Drying operation, in order to guarantee the fine quality of cereal, must be selected suitable drying condition and equipment, reduces as far as possible the dry harmful effect to grain quality.In prior art, grain drier mostly is tower grain drier, and the grain runner of tower grain drier is the vertical food passageway made from two-layer vertical meaning net, and grain forms one deck grain wall in passage, and grain moves from the top down in passage; Heater is coal-fired hot-blast stove, the exportable hot blast of coal-fired hot-blast stove.When dry, allow hot blast blow over grain wall, realize heating to grain, dry.This grain drier is when dry, and the complete machine thermal efficiency is low, and energy consumption is large, and heating-up temperature is not easy to control.
Chinese patent (patent No. is 98237176.4) provides " Tortuous flow type far infrared machine for drying grain ", this baffling far infrared machine for drying grain, on support, be fixed with the baffling food passageway that the square tube shape food passageway settled by multistage slope connects to form with baffling form head and the tail, there are grain entrance and hot vapor outlet in the upper end of baffling food passageway, and there is grain-export lower end.Upper wall in food passageway, along the length direction of food passageway, be evenly equipped with far-infrared radiation pipe.The utility model adopts the method drying grain of FAR INFRARED HEATING, and the thermal efficiency is high, and energy consumption is little, because with electrical heating far-infrared radiation pipe, so easy control of temperature when dry, the efficiency of heating surface of far infrared is higher, and the time that grain stops in food passageway is short.
Chinese patent (patent No. is 200420058350.5) provides a kind of " Far infrared hot air type dehydrating drying machine ", and this Far infrared hot air type dehydrating drying machine, belongs to and dehydrate technical field, establishes and respectively comprises air-heater, casing, charging aperture and discharging day.Wherein, casing is horizontally disposed with, and in a termination hot blast, casing, with far infrared radiator and horizontally disposed drying-plate, the direction of hot blast is parallel with drying-plate.The product that the utility model processes can keep original color and taste, and nutritional labeling can be not destroyed, identical with fresh feed, and working (machining) efficiency is high, it is low to consume energy, and is particularly suitable for the processing that dehydrates of food, pharmaceuticals industry.
Chinese patent (patent No. is 201020172794.7) provides a kind of " square tube type far infrared heating dryer ", the utility model discloses a kind of square tube type far infrared heating dryer, several cross sections that are communicated with successively that comprise support and be placed on support are square drying duct, in described drying duct, be provided with several deflector rolls that are arranged in parallel for transmitting the material that is dried, and several Far infrared heating plates, the end face of described drying duct is provided with several air-vents.This drying machine exists thoroughly dry, and space availability ratio is high, and continuous operation good operability, and glass fibre usage quantity is convenient to the advantage of observing, controlling.
Chinese patent (patent No. is 201020662993.6) provides a kind of " a kind of movable combination type far infrared dryer ", the utility model is a kind of movable combination type far infrared dryer, overall structure is box and canopy formula use, pass through left frame, correct frame, five central frames, quickly side plate, base plate, after rear plate combines in order, Polypropylence Sheet is layered on above bow, at edge, warming plate four sides, be installed with live splint and press strip, realized solar heat energy and Far-infrared heating panel share, reach green low-carbon, reduce energy consumption, improve the quality of products.
As fully visible, there is certain problem in cereal infra-red drying equipment and method at present, inflammable such as existing in dry run, harm food security, dry rear grain moisture is inhomogeneous, and infrared coating applies poor effect, infrared radiator radiation wavelength is single, drying efficiency is on the low side, and treating capacity is generally less than normal, and energy consumption is larger etc.For this reason, receive the advantage of above-mentioned achievement in research, overcome its shortcoming, the invention provides a kind of Novel grain infra-red drying device.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of prior art, provide that a kind of simple and reasonable, erection is convenient, energy utilization rate is high, uniform drying, cereal infra-red drying device that automaticity is high.
The object of the present invention is achieved like this: it comprises lower bottom base, far-infrared ray drying section, grain discharging section, heated-air drying section, grain storage section, air draft mechanism VI and elevator this drying device, described infra-red drying section is arranged on the top of lower bottom base, grain discharging section is arranged on the top of infra-red drying section, at least one deck heated-air drying section is arranged on the top of grain discharging section, grain storage section is arranged on the top of heated-air drying section, air draft mechanism is arranged on coupled the leading to of side of heated-air drying section, and elevator is arranged on the left side of drying device main body.
Described lower bottom base comprises lower bottom base framework and be arranged on the screw feeder on lower bottom base framework, and described screw feeder is arranged on the middle position, top of lower bottom base framework.
Described infra-red drying section comprises far-infrared ray drying section shell, is arranged on the upper reaches grain plate in far-infrared ray drying section shell, be arranged on end below the grain plate of the upper reaches cylinder type infrared radiator with circular support cover, be arranged on the dirty grain plate below cylinder type infrared radiator, be arranged on hot-wind inlet and the air mix chamber that is arranged on far-infrared ray drying section housing one side on infra-red drying section housing, oil burner is installed in described cylinder type infrared radiator one end, and the other end is directly put into air mix chamber.
Described grain discharging section comprises push pedal, be arranged on the push rod below push pedal, push pedal sleeve pipe, installation push pedal crank one end, push rod end are installed on push rod, and the other end of push pedal crank is connected with push pedal cam, and the push pedal motor shaft being arranged on push pedal electric machine support is connected with push pedal cam.
Described heated-air drying section comprises heated-air drying section shell, and being symmetricly set on ventilates supports two blocks of ventilation web plates on trapezoidal network framework, be arranged on two gable plates between ventilation web plate and be arranged on the air draft mesh cylinder of gable plate top.
Described grain storage section comprises grain storage section shell, be arranged on the trapezoidal network framework of support on grain storage section shell, be arranged on the baffle plate and the grain storage section upper cover plate that support on trapezoidal network framework, the trapezoidal network framework of described support is connected with grain storage section shell left side plate, baffle plate is arranged on and supports on trapezoidal network framework, and grain storage section upper cover is arranged on the top of grain storage section shell.
Described air draft mechanism comprises humid air collecting chamber, by axial flow blower support, is connected to the axial flow blower of humid air collecting chamber one end, described humid air collecting chamber one end is connected by four limit flanges with heated-air drying section shell right plate, the other end is connected with axial flow blower, and axial flow blower is arranged on axial flow blower support.
Beneficial effect of the present invention:
1, drying device main body of the present invention adopts combined type and modular construction, drying device dryer section is to consist of the ventilate trapezoidal network framework of support and air draft mesh cylinder, far infrared section adopts cylinder type infrared radiator, between be provided with upper reaches grain plate, dirty grain plate, wind mixed chamber, whole Far-infrared drying device adopts combining structure, can complete processing in workshop, assembles at the scene, improve the convenience of processing, installation, shortened set-up time; Automaticity is high simultaneously, saves manpower; Cereal is from upper end enters drying device, and through heated-air drying section and far-infrared ray drying section, cereal is waterfall pattern in far-infrared ray drying section, makes each cereal-granules can be subject to the radiation of far infrared.
2, the present invention, owing to having adopted the far infrared radiation material that is dried, utilizes " matching theory " that emittance is absorbed completely, and energy utilization rate is high, thereby reaches energy-saving effect.
3, the present invention is because far-infrared ray drying section has adopted inclination plate current grain, and cereal is thin layer waterfall shape and flows, and guarantees that each grain can be subject to the radiation of far infrared when Grain flow, has prevented cereal uneven drying or dry overdrying.
4, the present invention, because heated-air drying section has adopted thin layer drying structure, guarantees that when Grain flow each grain fully contacts with thermal medium, and uniform distribution hot blast has avoided conventional dryer cereal to be prone to " overdrying " and dry not enough phenomenon.
5, the present invention and similar mill model comparison, has adopted removable cylinder far infrared radiator, and the radiator that applies various far-infrared materials can adapt to the dry of different cereal.
6, air mix chamber has adopted the cold air inlet of venetian blind type, utilizes the temperature sensor of hot-wind inlet to control the unlatching size of shutter, and proportioning goes out the hot blast of different temperatures.
7, the plate pushing structure of grain discharging section, utilizes electric machine rotation to promote plate pushing structure, the adjusting in realization and heated-air drying section orlop gable plate space, the flow of control material.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the front view of cereal Far-infrared drying device of the present invention;
Fig. 2 is the left view of cereal Far-infrared drying device of the present invention;
Fig. 3 a, 3b are the cutaway views of cereal Far-infrared drying device of the present invention;
Fig. 4 is the structural representation of air draft mesh cylinder;
Fig. 5 is the structural representation of three layers of trapezoidal network framework of support that ventilates in dryer section;
Fig. 6 is that the structural representation that trapezoidal network framework is connected with draining crop mechanism is supported in the ventilation of dryer section orlop;
Fig. 7 is the structural representation of far-infrared ray drying section;
Fig. 8 is the structural representation of the upper reaches grain plate of Fig. 7 far-infrared ray drying section;
Fig. 9 is the structural representation of the cylinder type infrared radiator of Fig. 7 far-infrared ray drying section;
Figure 10 is the structural representation of draining crop mechanism;
Figure 11 is the process structure figure of embodiment 2;
1. screw feeder; 2. lower bottom base framework; 3. far-infrared ray drying section shell; 4. upper reaches grain plate; 5. cylinder type far infrared radiator; 6. circular support cover; 7. dirty grain plate; 8. hot-wind inlet; 9. air mix chamber; 10. push pedal; 11. push rods; 12. push pedal electric machine supports; 13. push pedal motors; 14. push pedal cams; 15. push pedal cranks; 16. push rod tubes; 17. gable plates; 18. heated-air drying section shells; 19. ventilate supports trapezoidal network framework; 20. air draft mesh cylinders; 21. ventilation web plates; 22. grain storage section shells; 23. support trapezoidal network framework; 24. baffle plates; 25. grain storage section upper cover plates; 26. humid air collecting chambers; 27. axial flow blowers; 28. axial flow blower supports; 29. oil burners; 30. exhaust outlets; 31. air distribution outlets; 32. deep beads; 33. enter grain elevator; 34. enter grain grain flowing tube; 35. enter grain discharging tube changement; 36. row's grain grain flowing tubes; Silo on 37.; 38. elevators.
The specific embodiment
Embodiment 1:
As Fig. 1, 2, 3a, shown in 3b, it comprises lower bottom base I this drying device, far-infrared ray drying section II, grain discharging section III, heated-air drying section IV, grain storage section V, air draft mechanism VI and elevator VII, described far-infrared ray drying section II is arranged on the top of lower bottom base I, grain discharging section III is arranged on the top of far-infrared ray drying section II, at least one deck heated-air drying section IV is arranged on the top of grain discharging section III, grain storage section V is arranged on the top of heated-air drying section IV, air draft mechanism VI is arranged on coupled the leading to of side of heated-air drying section IV, elevator VII is arranged on the left side of drying device main body.
During work, elevator VII arrives dry upper top by cereal hoisting to be dried, by entering grain grain flowing tube 34, enter grain storage section V, the cereal that enters grain storage section V flows through four layers of heated-air drying section IV, grain discharging section III, far infrared section II successively by deadweight, finally by screw feeder 1, each dried cereal is entered to elevator VII again, by entering grain grain flowing tube 34, cereal is sent in drying device or by changing into grain discharging tube reversing arrangement 35 and made grain go out drying device by row's grain grain flowing tube stream 36.
Described lower bottom base I comprises lower bottom base framework 2 and is arranged on the screw feeder 1 on lower bottom base framework 2, and described screw feeder 1 is arranged on the middle position, top of lower bottom base framework 2.
Shown in accompanying drawing 1,2,4: described far-infrared ray drying section II comprises far-infrared ray drying section shell 3, is arranged on shown in the upper reaches grain plate 4(accompanying drawing 9 in far-infrared ray drying section shell 3), be arranged on upper reaches grain plate 4 end below with shown in the cylinder type far infrared radiator 5(accompanying drawing 10 of circular support cover 6), be arranged on cylinder type far infrared radiator 5 dirty grain plate 7 below, be arranged on hot-wind inlet 8 and the air mix chamber 9 that is arranged on far-infrared ray drying section housing 3 one sides on far-infrared ray drying section housing 3.
Between described upper reaches grain plate 4 and far-infrared ray drying section shell 3, bolt connects, between dirty grain plate 7 and far-infrared ray drying section shell 3, be bolted, cylinder type far infrared radiator 5 two ends are supported by circular support cover 6, between circular support cover 6 and far-infrared ray drying section shell 3, be bolted, between circular support cover 6 and cylinder type far infrared radiator 5, by high temperature thermal insulation material, sealed, oil burner 29 is installed in cylinder type far infrared radiator 5 one end; The other end is directly put into air mix chamber 9, and air mix chamber 9 is connected on far-infrared ray drying section shell 3 by four limit flanges.On air mix chamber 9, there is individual air distribution outlet 31, air distribution outlet 31 enter cold wind and cylinder type far infrared radiator 5 hot blast out in air mix chamber 9 mix after, by the hot-wind inlet 8 on far-infrared ray drying section shell 3 plates, enter in far-infrared ray drying section II, upwards enter again in heated-air drying section IV, hot blast enters in air draft mesh cylinder 20 through grain layer, air-flow through grain layer becomes humid air, by the humid air collecting chamber 26 of installing on heated-air drying section shell 18, collected, by axial flow blower 27, discharge outside drying device, the moisture of cereal is taken away.
Described far-infrared ray drying section II adopts inclined plate type stream grain, and grain layer is thin layer waterfall shape, and its effect is when Flowing of Grain, to guarantee that each grain can be arrived by infrared radiation, and uniform distribution infrared energy is taken away the moisture of damp grain;
Shown in accompanying drawing 1,3b, 5: described grain discharging section III comprises push pedal 10, be arranged on push pedal 10 push rod 11 below, push pedal sleeve pipe 16, push rod 11 installation push pedal crank 15 one end, ends are installed on push rod 11, the other end of push pedal crank 15 is connected with push pedal cam 14, and push pedal motor 13 axles that are arranged on push pedal electric machine support 12 are connected with push pedal cam 14.
Described push rod 11, push pedal cam 14 and push pedal crank 15 form toggle, during work, push pedal motor 13 rotates, drive push pedal cam 14, push pedal crank 15 to move, make push rod 11 in the interior movement of push rod tube 16, promote push pedal 10 and move, between the space that realization and gable plate 17 form, to response adjustment, control the flow of grain.
Shown in accompanying drawing 1,2,3a, 3b, 6: described heated-air drying section IV comprises heated-air drying section shell 18, being symmetricly set on ventilates supports shown in two ventilation web plate 21(accompanying drawings 8 on trapezoidal network framework 19), be arranged on two gable plates 17 between ventilation web plate 21 and be arranged on shown in the air draft mesh cylinder 20(accompanying drawing 7 of gable plate 17 tops).
Described heated-air drying section IV inside is bucket-shaped structure, and coal tub outer wall is in the middle of mesh plate, coal tub, a circular mesh pipeline to be set, similar thin layer drying principle when dry, uniform distribution hot blast.
The left side plate that trapezoidal network framework 19 and heated-air drying section shell 18 are supported in described ventilation connects and composes bucket-shaped structure, heated-air drying section IV one has four layers of bucket-shaped like this structure, in the middle of bucket-shaped structure, it is air draft mesh cylinder 20, air draft mesh cylinder 20 two ends, left and right are connected by circular flange with heated-air drying section shell 18 left side plates, one end sealing, another section has exhaust outlet.Ventilation is supported trapezoidal network framework 19 two ends and is connected with the left side plate of heated-air drying section shell 18, there is space front and back with heated-air drying section shell (18), form hot blast air channel, hot blast supports after the web plate on trapezoidal network framework 19 through ventilating, enter grain layer, after grain layer, enter in air exhausting net eye cylinder 20, by the effect of axial flow blower 27, discharge heated-air drying section IV.
Described grain storage section V comprises grain storage section shell 22, is arranged on the trapezoidal network framework 23 of support on grain storage section shell 22, is arranged on the baffle plate 24 and the grain storage section upper cover plate 25 that support on trapezoidal network framework (23).
The trapezoidal network framework 23 of described support is connected with grain storage section shell 22 left side plates, and baffle plate 24 is arranged on and supports on trapezoidal network framework 23, and grain storage section upper cover 25 is arranged on the top of grain storage section shell 22.Grain storage section V is for the tempering of storage cereal and dry run temporarily.
Described air draft mechanism VI comprises humid air collecting chamber 26, by axial flow blower support 28, is connected to the axial flow blower 27 of humid air collecting chamber 26 one end.
Described humid air collecting chamber 26 one end are connected by four limit flanges with heated-air drying section shell 18 right plates, and the other end is connected with axial flow blower 27, and axial flow blower 27 is arranged on axial flow blower support 28.
Described elevator VII by cereal be transported to from bottom to top drying machine upper top, enter infra-red drying device.
Between described lower bottom base I, far-infrared ray drying section II, grain discharging section III, heated-air drying section IV and grain storage section V, be to be bolted, infra-red drying section II, heated-air drying section IV and the shell of grain storage section V are to have four blocks of side plates to be connected by buckle.
Operation principle:
Cereal enters in Far-infrared drying device by entering grain elevator 33, first enter grain storage section V, under the effect of gravity, enter successively heated-air drying section IV, grain discharging section III, far-infrared ray drying section II, finally enter screw feeder, enter again into grain elevator 33, in far-infrared ray drying section II, material, by the dirty grain plate 7 of upper reaches grain plate 4 rear inflow, is waterfall shape Grain-Layer on dirty grain plate 7.The cold air that hot blast is entered by hot-air and the air distribution outlet 31 of the 5 interior ejections of cylinder type far infrared radiator, after the interior mixing of air mix chamber 9, by hot-wind inlet 8, enter in infra-red drying section II, along the middle part of leading deep bead 32 and flow to far-infrared ray drying section II, upwards enter heated-air drying section IV, in heated-air drying section IV, hot blast is by supporting the web plate on trapezoidal network framework 23, through grain layer, enter into air draft mesh cylinder 20, under the effect of axial flow blower 27, humid air is discharged to Far-infrared drying device outside.The flowing velocity of cereal, by draining crop mechanism control, realizes grain flow rate according to the pore size between push pedal 10 and gable plate 17.
Embodiment bis-:
As shown in Figure 11: the present embodiment is the variation on embodiment 1 basis, something in common no longer repeats, difference is to add a upper silo 37 and elevator 38 again, the elevator newly adding 38 bottom grain inlets are exported and are connected with screw feeder 1, elevator 38 outlets that newly add are connected with upper silo 37 entrances, 37 outlets of upper silo with former enter grain elevator 33 entrances be connected, make each dried grain tempering a period of time in upper silo, improve the daily output, the waste heat that makes full use of cereal inside reduces the moisture of grain.