A kind of modifying device
Technical field
The present invention relates generally to a kind of quenching and tempering device of material, particularly the pre-processing device of material forming processing in feed and the field of food.
Background technology
It is a lot of to use quenching and tempering device to carry out the producer of material precuring in the prior art, and use the quenching and tempering device of bitubular form also a lot, the type quenching and tempering device is provided with two main shafts, is respectively equipped with the blade that becomes different angles with main shaft on two main shafts, and diaxon velocity of rotation and rotation direction are all inequality.During work because the twin shaft rotating speed does not wait, the blade direction of rotation is different, thereby material is upwards thrown from two shafts centre with annex solution and with steam formation convection current, material is also fully sheared and is mixed.But there is following problem in the quenching and tempering device of the type: the one, the functional requirement of the inner same blade of the quenching and tempering device of the type is many, though material do not stop and vapor mixing, the conveying that does not stop again simultaneously; The blade that possesses two kinds of functions does not all reach its ideal effect for mixing or carrying; The 2nd, its inner blade is arranged unreasonable, blade in the big main shaft is incomplete same to arranging of outlet section from material inlet, angle near the blade in the angle of the blade of import department and main shaft and close exit and main shaft is opposite, form the feed zone and the feed back zone of material thus respectively, the blade of interlude and main shaft vertical arrangement, form the Mixed Zone of material, thereby material feed zone and feed back zone can not well be shed by blade cylindrical shell above, and the steam that uses in the modified process accumulates in the top of cylindrical shell, sink to simplified below as material, material and steam contact area are too small, can not well permeate, diffusion; Material absorbs the scarce capacity of steam, has directly influenced the precuring degree of material, the waste that also brings steam simultaneously.The 3rd, the proportionate relationship between the Mixed Zone of the bitubular, feed back zone and the feed zone three is taken.The 3rd, the proportionate relationship control between the Mixed Zone of the bitubular, feed back zone and the feed zone three is improper, as the mixing ability of emphasizing material simply, need to increase the Mixed Zone, that will reduce feed zone and feed back zone, and then influences the conveying capacity of equipment to material, be output, while also influences the ability that material returns away, makes the modified time decreased of material, otherwise increases feed zone and feed back zone, certainly will reduce the Mixed Zone, influence the mixing ability of material.Therefore, the gelatinization degree of present quenching and tempering device can only reach 42~45% usually.
Summary of the invention
The present invention is that mainly to provide a kind of mixing of materials more even, and the modified time is longer, and modified gelatinization degree is higher, can save the modifying device that steam uses simultaneously again.
The present invention mainly comprises first simplified and second cylindrical shell that is set up in parallel and is connected, be provided with first main shaft in first cylindrical shell, be provided with second main shaft in second cylindrical shell, first main shaft and the mutual lotus root of second main shaft are closed and switched in opposite, be interval with pusher blade and mixing paddle on described first main shaft, the radius of mixing paddle pushes away blade greater than the radius of pusher blade before second main shaft is provided with.By pusher blade, mixing paddle with precedingly push away setting up of blade, make material pusher in the body, mixing and preceding pushing away that corresponding blade effect be arranged respectively, each function individual feature is strengthened the time and do not influence other two functions, can make material can both reach a desirable effect in pusher, mixing and the preceding each side that pushes away.
Further improve as the present invention, the mixing paddle that is provided with on described first main shaft becomes helix to arrange vertically, and the length direction of blade is vertical with main shaft, and the width of blade is parallel with main shaft.Rotation by parallel angle blade guarantees that material is whole modified indoor can both shedding material fully, the most of material that originally is deposited on cylindrical shell below can move in whole cylindrical shell, and mixing paddle becomes helix to arrange to have guaranteed continuity and the uniformity that material turns round vertically simultaneously.
Further improve as the present invention, push away blade before described and become helix to arrange vertically, the length direction of blade is vertical with main shaft, and the angle of the blade face of blade and main shaft vertical direction is 13~17 degree, guaranteed that material can travel forward better, also guaranteed the continuity and the uniformity of running.
Further improve as the present invention, described pusher blade is along circumferentially 180 ° at interval, axially spaced-apart certain distance are arranged, the length direction of blade is vertical with main shaft, the angle of the blade face of blade and main shaft vertical direction is-17~-13 degree, guaranteed that material moves backward, guaranteed the continuity and the uniformity of material running simultaneously.
Further improve as the present invention, the radius R 2 of mixing paddle and the radius ratio of pusher blade R3 can obtain the time of staying of desirable material in cylindrical shell in 1.2~1.4 scopes, satisfy the mixed effect of material in the cylindrical shell simultaneously.
Further improve as the present invention, it is identical with pusher blade radius R 3 to push away blade radius R 1 before described, and the preceding blade density ratio that pushes away blade and pusher blade is 2.5~3.5: 1.Could guarantee enough mixing of material so on the one hand, guarantee that on the other hand certain material is to pusher.
Further improve as the present invention, the public center of circle of described pusher blade and mixing paddle and before push away distance parameter L between the center of circle of blade and mixing paddle radius R 2 ratios in 1.15~1.25 scopes.By this parameter and this parameter combination of the above R2/R3 (1.2~1.4), can guarantee to obtain a rational public domain, by the effect of this rational public domain, can guarantee that a part is pushed ahead through the material that mixes.
The key technical indexes gelatinization degree was obviously than gelatinization degree height of the prior art when the conclusion that the implementation result of above technical scheme all draws from following test, the technique effect that the present invention obtains were the work of this equipment.
Concrete test is as follows:
Test recipe: adopt the prescription of albumen floating aquatic feed, it is as follows specifically to fill a prescription: dregs of beans 27%, wheat flour 28%, wheat bran 18%, the young cake 27% of dish.Experimental condition: prescription moisture 10.2%, feeding output 2000kg/hr, amount of water 120kg/hr adds vapour amount 200kg/hr.
Test method: the material that comes out from body is analyzed, identified the gelatinization degree of starch in the material, measure the degree of filling of material in body simultaneously.
The index explanation: 1) gelatinization degree of starch is an important indicator of check quenching and tempering device in the material, adopts " glucoamylase enzyme process " to detect.
2) degree of filling of material in body directly reflects the modified time of material, the long gelatinization degree that also can improve starch in the material of modified time.Being calculated as follows of degree of filling:
Material volume in degree of filling=body/body volume * 100%
The detection method of " material volume in the body ", at material formula such as table 1, feeding output remains under the prerequisite of 2000kg/hr (need not add water and vapour when detecting this parameter), under the stable situation of logistics, close all running devices suddenly, material in labor cleaning's body, and to detect the volume that cleans out material be exactly " the interior material volume of body ".
Test procedure:
1) during the radius ratio of the radius R 2 of measuring different mixing paddles and pusher blade R3, the degree of filling of material and gelatinization degree.
Test parameters |
1 |
2 |
3 |
4 |
5 |
R2/R3 |
1.2 |
1.25 |
1.3 |
1.35 |
1.4 |
The sampling number of times |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
Degree of filling |
48 |
49 |
48 |
47 |
48 |
47 |
47 |
47 |
46 |
45 |
44 |
45 |
43 |
44 |
44 |
Gelatinization degree |
51.2 |
50.1 |
49.9 |
49.8 |
49.2 |
48.9 |
48.2 |
48.3 |
48.5 |
47.2 |
46.5 |
46.3 |
44.5 |
44.9 |
45.1 |
2) measure when ditto not pushing away the blade density ratio of blade D1 and pusher blade D2 the degree of filling of material and gelatinization degree.
Test parameters | 1 | 2 | 3 | 4 | 5 |
D1/D2 | 2.5 | 2.75 | 3.0 | 3.25 | 3.5 |
The sampling number of times | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
Degree of filling | 48 | 48 | 47 | 47 | 46 | 47 | 47 | 46 | 47 | 45 | 46 | 45 | 44 | 43 | 43 |
Gelatinization degree | 51.2 | 50.3 | 50.5 | 49.6 | 48.7 | 48.8 | 48.3 | 48.4 | 48.5 | 48.2 | 48.5 | 48.0 | 45.0 | 49.2 | 49.3 |
3) measure different pusher blades and mixing paddle the public center of circle and before when pushing away distance parameter L between the center of circle of blade (1) and mixing paddle R2 radius ratio, the degree of filling of material and gelatinization degree.
Test parameters | 1 | 2 | 3 | 4 | 5 |
L/R2 | 1.15 | 1.175 | 1.2 | 1.225 | 1.25 |
The sampling number of times | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
Degree of filling | 48 | 48 | 47 | 48 | 46 | 47 | 47 | 48 | 47 | 48 | 46 | 47 | 48 | 47 | 48 |
Gelatinization degree | 50.4 | 49.6 | 47.3 | 49.5 | 48.8 | 48.2 | 48.9 | 49.5 | 49.5 | 47.3 | 49.5 | 48.0 | 47.2 | 48.2 | 49.8 |
Description of drawings
Fig. 1, the modifying device structural representation
Fig. 2, the first main axle structure schematic diagram.
Fig. 3, the vertical view of Fig. 2.
Fig. 4, the second main axle structure schematic diagram.
Fig. 3, the vertical view of Fig. 4.
Wherein: 1, first cylindrical shell, 2, second cylindrical shell, 3, first main shaft, 4, second main shaft, 5, the pusher blade, 6, mixing paddle, 7, the preceding blade that pushes away.
The specific embodiment
Embodiment one, described modifying device, comprise first cylindrical shell 1 and second cylindrical shell 2 that are set up in parallel and are connected, be provided with first main shaft 3 in first cylindrical shell 1, be provided with second main shaft, 4, the first main shafts 3 in second cylindrical shell 2 and second main shaft, 4 mutual lotus roots are closed and switched in opposite, be interval with pusher blade 5 and mixing paddle 6 on first main shaft 3, the radius of mixing paddle 6 pushes away blade 7 greater than the radius of pusher blade 5 before second main shaft 4 is provided with.The mixing paddle that is provided with on described first main shaft becomes helix to arrange vertically, and the length direction of blade is vertical with main shaft, and the width of blade is parallel with main shaft.Push away blade before described and become helix to arrange vertically, the length direction of blade is vertical with main shaft, and the angle of the blade face of blade and main shaft vertical direction is 15 degree.180 ° along circumferential interval of described pusher blades, axially spaced-apart certain distance are arranged, and the length direction of blade is vertical with main shaft, and the angle of the blade face of blade and main shaft vertical direction is-15 degree.The radius ratio of the radius of described mixing paddle 6 and described pusher blade 5 is 1.2: 1.It is identical with described pusher blade 5 radiuses to push away blade 7 radiuses before described, precedingly pushes away that blade density ratio is 2.5: 1 on blade 7 and the pusher blade 5.The public center of circle of described pusher blade 5 and mixing paddle 6 and before push away distance parameter L and mixing paddle 6 radius ratios 1.15 between the center of circle of blade 7.
Embodiment two, and described modifying device and embodiment one difference are that the radius ratio of the radius of described mixing paddle 6 and described pusher blade 5 is 1.3: 1.
Embodiment three, and described modifying device and embodiment one difference are that the radius ratio of the radius of described mixing paddle 6 and described pusher blade 5 is 1.4: 1.
Embodiment four, and described modifying device and embodiment one or two or three differences are, the public center of circle of described pusher blade 5 and mixing paddle 6 and before push away distance parameter L between the center of circle of blade 7 and mixing paddle 6 radius ratios at 1.2: 1.
Embodiment five, and described modifying device and embodiment one or two or three differences are, the public center of circle of described pusher blade 5 and mixing paddle 6 and before push away distance parameter L between the center of circle of blade 7 and mixing paddle 6 radius ratios at 1.25: 1.
Embodiment six, and described modifying device and embodiment one or two or three differences are, it is identical with described pusher blade 5 radiuses to push away blade 7 radiuses before described, precedingly push away that blade density ratio is 3: 1 on blade 7 and the pusher blade 5.
Embodiment seven, and described modifying device and embodiment one or two or three differences are, it is identical with described pusher blade 5 radiuses to push away blade 7 radiuses before described, precedingly push away that blade density ratio is 3.5: 1 on blade 7 and the pusher blade 5.
Push away the blade face of blade and the angle of main shaft vertical direction among the above embodiment before all and can be unspecified angle in 13~17 degree, same, the angle of the blade face of pusher blade and main shaft vertical direction also can be a unspecified angle in-17~-13 degree.