CN87210154U

CN87210154U - Reciprocating vibrator type continuous drying machine

Info

Publication number: CN87210154U
Application number: CN 87210154
Authority: CN
Inventors: 李笑光
Original assignee: CHINA AGRICULTURAL ENGINEERING RESEARCH DESIGN INST
Current assignee: CHINA AGRICULTURAL ENGINEERING RESEARCH DESIGN INST
Priority date: 1987-07-15
Filing date: 1987-07-15
Publication date: 1988-06-15

Abstract

The utility model discloses a continuous drying machine. The prior drying machine has the defects of inhomogeneous drying, large energy consumption, complicated structure, high cost, etc. The utility model adopts the reciprocating vibrator sieve type to make the material carry out the film flow and dried continuously. The utility model has the advantages of simple structure, low cost and high speed. The hot air penetrates the material pallet of the step type mesh and is contacted with the material moving continuously, so the contact area is big. And the waste steam and the waste heat can be reclaimed, so the drying cost is reduced. The utility model is suitable for the drying process of the grainy material or the flaky material and can make into big series, middle series and small series of products used in different occasions.

Description

Reciprocating vibrator type continuous drying machine

The utility model is a kind of drying equipment that can be used for dry multiple granular or sheet material.

The approved product of the thin layer continuous drying equipment that can adopt at present, as fluid-bed drier and carrier bar conveying-type tea-leaf withering machine, reduced the moisture difference behind the dry materials and can dry high moisture material though compare with other common drying machine, but still the part that comes with some shortcomings: the drying mode as fluid-bed drier is by high pressure, at a high speed, high temperature gas flow will be deposited in material on the orifice plate of certain gradient blow for seethe as the flowing water carry out under the flow regime dry, therefore not only power consumption is very big, and because the heat leakage of air velocity very high event exhaust heat and casing is all very big.When changing different material simultaneously, be difficult for air velocity and gas flow temperature etc. is coordinated to adjust.In addition, material can not change the drying time in machine basically, and drying property is stable inadequately, and operation easier is also bigger.And carrier bar conveying-type tea-leaf withering machine, though better performances, but the complicated price of mechanism is than more than the high twice of fluid-bed drier, and because material still belongs to inactive state so hot interest rate is still lower with respect to carrier bar, is suitable for the very high material of economic worth and uses.Be the multilayer vibrating desiccator in horizontal circle movement of domestic present up-to-date trial-production again, owing to be to produce vibration by special vibrating motor, so price is very high, and since hot blast be not the penetrator bed of material but carry out drying by contacting with material bed surface, so heat utilization efficiency is lower.Simultaneously, owing to adopt the narrow groove sandwich construction of vertical barrel, the elevator height of not only complex structure, and material is also than higher.So being suitable for powdery and granule material uses.

The purpose of this utility model is to be to provide a kind of rate of drying very fast, and energy consumption is lower, and uniform drying is simple in structure, and cost is low, and the scope of application is wide and be easy to the continuous drier that uses with the supporting line of other process equipment.

Reciprocating oscillating screen formula continuous drier is to promote double vibrations sieve nest 6 by crank mechanism 3 to produce double vibrations, makes the material that is flowed into by feed hopper 17 along becoming the stairstepping sieve aperture material supporting plate 8 at certain inclination angle to carry out thin layer continuous-flow with horizontal plane in the longitudinal direction.Enter the air of hot-blast stove heat exchanger overcoat 21 by waste heat recovery mouth 15 and cold wind import 20, the hot blast chamber 7 that is sent to double vibrations sieve nest bottom by ventilation blower 22 through hot-blast stove 23 heating back sees through stepped bore material supporting plate 8 then and fully contacts with material, thus formation material laminar flows continuous drying.When material moisture is relatively low, can reclaim,, also can open high humidity outlet 14 and directly discharge if when the moisture of material is very high by waste heat recovery pipeline 16.Ventilation blower ajutage 1 and hot blast chamber air inlet 2 be connected and double vibrations sieve nest top waste heat recovery pipeline 16 connects with the square pipe socket mode that being connected of hot-blast stove air inducing pipeline 18 is certain interval, the gap between the tube and tube is air inlet as a supplement just in time.

The utility model since material in continuous motion with see through sieve aperture on next hot blast contact, so contact area is big, uniform drying, rate of drying is very fast, heat utilization efficiency is than higher.Simultaneously, owing to adopt reciprocating oscillating screen formula material to feed mode, and the time of material in machine is shorter, therefore can adopts the reasonable drying process of low air quantity, high-temperature drying, and be provided with the waste heat recovery pipeline, thereby further improved rate of drying and reduced hear rate.In addition, because stairstepping sieve aperture material supporting plate is an inclined plane, so the sectional area at the close air inlet place, hot blast chamber below it is increased, the sectional area far away from air inlet reduces gradually, thereby the wind speed of each one of hot blast chamber and static pressure are more reached unanimity than the drying machine that adopts the long-pending hot blast chamber of uiform section, and the distribution of air-flow on whole material supporting plate is more even.Also because the double vibrations sieve nest belongs to suspension type and amplitude is very little, therefore the power of vibration consumption is very little.It is low that the utility model also has cost simple in structure, and the life-span safe in utilization is long, but the pass through time of material in machine can be adjusted and the different types of air heating apparatus of adapted and be easy to and the supporting line of other process equipment uses.

Accompanying drawing: reciprocating oscillating screen formula continuous drier fundamental diagram

Embodiment of the present utility model as shown in drawings.Behind material input feed hopper 17, fall on the stairstepping sieve aperture material supporting plate 8 of inclination, carry out double vibrations by motor 5 driving crank mechanisms 3 through driving spring plate 4 promotion double vibrations sieve nests 6 then the material that falls on the stairstepping sieve aperture material supporting plate 8 is travelled forward, after discharge bucket 11 discharges.Meanwhile, air by waste heat recovery mouth 15 through waste heat recovery pipeline 16 and hot-blast stove air inducing pipeline 18 and cold wind import 20 enter hot-blast stove heat exchanger overcoat 21 by hot-blast stove 23 heating after, be pressed in the hot blast chamber 7 through ventilation blower air supply duct 1 and hot blast chamber air inlet 2 by ventilation blower 22 sucking-offs, see through 8 pairs of material bed dryings of carrying out of stepped bore material supporting plate then.If when big, can directly enter in the atmosphere by high humidity outlet 14 by the waste gas humidity ratio after material bed.Double vibrations sieve nest 6 tops are connected with bolt suspension rod 13 on the frame 9 as the fulcrum of vibration and with rubber washer 12 liners, the bottom of double vibrations sieve nest 6 at place, four angles by steel spring plate 10 supportings as elastomeric material.Through the coal smoke gas that hot-blast stove 23 burnings are produced, discharge by chimney 19.

The utility model can be made into large, medium and small type series of products to be used for different occasions.

Claims

1, a kind of drying machine of being made up of dryer section, ventilation blower, hot-blast stove is characterized in that dryer section is made of crank mechanism 3 and double vibrations sieve nest 6.

2,, it is characterized in that having in the double vibrations sieve nest 6 a stairstepping sieve aperture material supporting plate 8 that becomes certain inclination angle in the longitudinal direction with horizontal plane by the described drying machine of claim 1.

3, by the described drying machine of claim 2, the hot blast chamber air inlet 2 that it is characterized in that stairstepping sieve aperture material supporting plate 8 bottoms and ventilation blower hot-blast outlet 1 be connected and the waste heat recovery pipeline 16 at double vibrations sieve nest top be the connection of pipeline socket joint type being connected of hot-blast stove induced duct 18.