Background technology
At present, the production technology of the liquefaction injector of low temperature in the thinning process of alcohol production all adopts usually, its technical process and feature are: the starchy material of pulverizing mixes with spice water, add after a certain amount of α-amylase mixes simultaneously, mash is directly sent in liquefaction injector to mix instantaneously with primary steam by pump and is heated, after mash is heated to condensing temperature, the operation sent into below carries out liquefying and mashing operation.Its process characteristic mainly technological operation is simple, and energy-saving effect is obvious, and occupation area of equipment is less, and wherein adopted liquefaction injector is the capital equipment realizing this technique.
But, found by long-term production practices, the mash steam ejection liquefaction after although this equipment effectively can solve starchy material and spice water spice and the problem be rapidly heated, but the structure of this equipment and performance, being only suitable for is the steam ejection liquefaction operation of the mash of about 1:2.6 to granularity less (granularity of general starch material is below 1.2mm), its material-water ratio that starchy material is pulverized; And liquefaction spraying is carried out for the mash that starchy material granularity increases to 3 ~ 3.5mm, its material-water ratio is about 1:2 pulverized, bulky grain starch in mash will block the nozzle of injector, if increase its nozzle bore, will be lost it to the liquefaction jet-action of mash and effect.For this reason, this liquefaction injector has been not suitable for improving raw material and has pulverized granularity and material-water ratio to prepare the technique of high-concentration mash liquid.
Adopt raising raw material pulverizing granularity and material-water ratio to prepare the technique of high-concentration mash liquid, namely preparing the mellow solution of saccharification of high concentration, is one of basic condition realizing thick mash alcohol fermentation technology.By preparing the mellow solution of saccharification of high fermentable sugar content, make its same volume metabolic conversion can produce more alcohol product, to the water consumption, energy consumption and the production cost that reduce in production process, reduce wastewater treatment burden, improve equipment efficiency of usage all highly beneficial.
But at present for thick mash alcohol fermentation most study for improve the activity of α-amylase and carbohydrase, the acid resistance improving carbohydrase, the resistance to high sugar improving fermented bacterium and resistance to high concentration of alcohol performance, improve granularity that raw material pulverizes and pulverize and add fire resistant alpha-diastase in raw material spice process and promote the aspects such as starchy material pre liquefied, and, improving pulverizing raw material spice process mash concentration is prerequisite, is basis.And improve the process pulverizing raw material spice process mash concentration (as material-water ratio brings up to 1:2.0 or higher) and mash viscosity will be run into increase, affect the practical problems such as mash conveying.In order to solve the problem, increase the granularity that starchy material is pulverized, reduce the absorption speed pulverizing feed particles, effectively can increase the ratio of free water in mash, it is the effective way improving mash mobility, but the liquefaction of the current application of employing is sprayed and is dissolved being difficult to the rapid fragmentation of bulky grain starch realized in mash and reaching good liquefaction effect, does not also have similar equipment effectively can solve the report containing bulky grain liquefying starchiness raw material problem in mash.
Utility model content
For Problems existing in correlation technique, the purpose of this utility model is that providing a kind of sprays destroyer, carries out fully effectively broken with the starchy material mash at least realizing being greater than granularity 3mm.
For achieving the above object, the utility model provides a kind of injection destroyer, comprises housing, also comprises: respectively around first order jet nozzle and the secondary nozzle of the setting of housing periphery wall; Be arranged on the one-level reducing and expansion passage on internal perisporium between first order jet nozzle and secondary nozzle, housing; And be arranged on the secondary reducing and expansion passage of housing bottom.
According to the utility model, the direction bottom along case top to it, first order jet nozzle and secondary nozzle are separately positioned on the periphery wall of housing, and wherein, first order jet nozzle has the first steam inlet and mash entrance, and secondary nozzle has the second steam inlet.
According to the utility model, all first order jet nozzles are all positioned at the plane of the axis perpendicular to housing, and the spout of each first order jet nozzle is all offered towards above-mentioned axis, all secondary nozzles all relative to the plane of the axis perpendicular to housing to the bottom angled of housing, and the spout of each secondary nozzle is towards being all crisscross arranged with above-mentioned axis.
According to the utility model, first order jet nozzle be equidistant and between two symmetrically around housing periphery wall arrange at least 2 nozzles, secondary nozzle be equidistant and between two symmetrically around housing periphery wall arrange at least 2 nozzles.
According to the utility model, one-level reducing and expansion passage has continuous print first contraction section, the first straight section and the first diffuser; Secondary reducing and expansion passage has continuous print second contraction section, the second straight section and the second diffuser, wherein, direction bottom along case top to it, first contraction section and the second contraction section all tilt towards the axis of housing, first straight section and the second straight section all with the axis being parallel of housing, the first diffuser and the second diffuser open away from the axis of housing all gradually.
According to the utility model, case top is provided with the upper cover for encapsulating housing, is interconnected between upper cover and housing by vessel flange.
According to the utility model, upper cover surface, the first contraction section and the second diffuser outer surface are provided with pressure gauge and thermometer, and wherein, all pressure gauges and thermometer are all electrically connected with first order jet nozzle and secondary nozzle respectively by controller.
According to the utility model, be provided with at least 2 sample taps be spaced apart from each other at the sidewall of housing.
According to the utility model, the sidewall of housing is also provided with liquid level gauge and visor, and wherein, liquid level gauge is electrically connected by controller with first order jet nozzle.
According to the utility model, dividing plate is provided with between the internal perisporium and the periphery wall of the first diffuser of housing, upper cover surface is also provided with mouth for subsequent use, the sidewall of housing is also provided with bearing, wherein, housing is the two-part structure opened by baffle for separating, and this two-part structure housing is interconnected by flange at dividing plate place.
Advantageous Effects of the present utility model is:
In injection destroyer of the present utility model, first the material feed liquid of such as starchy material sprays into enclosure interior by first order jet nozzle, and in the process that first order jet nozzle sprays, material mutually clashes into and carries out one-level fragmentation.Material feed liquid after one-level fragmentation can form percussion flow and backflow in enclosure interior, thus makes the further broken refinement of material, and then material can flow in one-level reducing and expansion passage.The hydrodynamics process that material experience is reduced by flow velocity in the channels, pressure brings up to flow velocity increase, earth pressure release, that is, experience one-stage expansion broken in the channels.With above similarly, material experience and shattering process similar above in secondary nozzle subsequently and secondary reducing and expansion passage.Therefore, injection destroyer of the present utility model can carry out fully effectively broken to the starchy material mash of bulky grain (such as granularity is greater than 3mm).
Further, first order jet nozzle has the first steam inlet and mash entrance, and the high pressure mash after mixed vapour can through centrifugal breaking and expansion fragmentation, thus be atomized broken in first order jet nozzle, makes the starchiness particle in mash carry out preliminary fragmentation.And secondary nozzle has the second steam inlet, steam is known from experience by secondary nozzle jetski and is heated to mash, and mash is overcome steady flow condition and flowing that flow resistance realizes mash, with held stationary liquid level.Therefore, said structure further can realize the fully effectively fragmentation of raw material mash.
Detailed description of the invention
Referring now to accompanying drawing, injection destroyer of the present utility model is described.
As shown in Figure 1, be the structural representation that the utility model sprays destroyer, it comprises housing 5, first order jet nozzle 6, secondary nozzle 3, one-level reducing and expansion passage 19 and secondary reducing and expansion passage 23.Wherein, first order jet nozzle 6 and secondary nozzle 3 are arranged around the periphery wall of housing 5 respectively, and all towards housing 5 internal spray, one-level reducing and expansion passage 19 is arranged on the internal perisporium of housing 5, and its installation site is between first order jet nozzle 6 and secondary nozzle 3, and secondary reducing and expansion passage 23 is arranged on the bottom of housing 5, that is, secondary reducing and expansion passage 23 is formed as the bottom of housing 5.
Further, along housing 5 top to its bottom direction, first order jet nozzle 6 and secondary nozzle 3 are separately positioned on the periphery wall of housing 5, and that is, the position of first order jet nozzle 6 is higher than the position of secondary nozzle 3.In addition, first order jet nozzle 6 has the first steam inlet 14 and mash entrance 15, and secondary nozzle 3 has the second steam inlet 21.In concrete use of the present utility model, machinery, the steam atomization process of feed liquid+steam can be made by first order jet nozzle 6, namely, high pressure mash fluid is sent into first order jet nozzle 6 under the effect of high speed centrifugation power with the expansionary force that reduces pressure suddenly, the bulky grain in mash (such as granularity is greater than 3mm) starch is made to obtain centrifugal breaking and expand fragmentation suddenly, thus the atomization realizing liquid in fluid is broken, that is, realize the preliminary fragmentation of starch granules.And steam passes into by the first steam inlet 14 fragmentation can strengthened starch granules.
Composition graphs 1 to Fig. 3, in a preferred embodiment, all first order jet nozzles 6 are all positioned at the plane of the axis perpendicular to housing 5, and the spout of each first order jet nozzle 6 is all offered towards the axis of housing 5.Specifically, in the embodiment shown in Figure 2, all first order jet nozzles 6 are all positioned at same plane, namely, all first order jet nozzles 6 are all installed perpendicular to the sidewall of housing 5, and multiple first order jet nozzle 6 is arranged to structure respect to one another between two, and the injection direction of all first order jet nozzles 6 is all towards the center of sectional view, and the axis namely towards housing 5 sprays.By this structure, the material sprayed by first order jet nozzle 6 can be clashed into each other, namely, mash can meet in the way arriving equipment center, and heart region forms impingement region in a device, makes between the droplet of atomization and starch granules, starch granules realizes clashing into fragmentation at impingement region each other, friction is broken.
As shown in Figure 3, be the sectional view at B-B place in Fig. 1.For secondary nozzle 3, all secondary nozzles 3 all relative to the plane of the axis perpendicular to housing 5 to the bottom angled of housing 5.In other words, the injection direction of secondary nozzle 3 non-immediate are sprayed towards the axis direction of housing 5, but relative to the injection direction of first order jet nozzle 6 to the bottom angled of housing 5, that is, secondary nozzle sprays obliquely in FIG.In addition, secondary nozzle 3 to arrange structure also different from first order jet nozzle 6.Compared with Fig. 2, in the sectional view of Fig. 3, the spout of each secondary nozzle 3 is towards being all crisscross arranged with the axis of housing 5, in other words, the spout of each secondary nozzle 3 is staggered towards the center with housing 5, and arranges around the axis of housing 5 symmetrically between two relative to the axis of housing 5 between all secondary nozzles 3.That is, secondary nozzle 3 and first order jet nozzle 6 are all analogously arrange symmetrically between two relative to the axis of housing 5, but the injection direction of first order jet nozzle 6 directly sprays towards the axis of housing 5, and the axis of the injection direction of secondary nozzle 3 and housing 5 is staggered.In other words, in sectional view shown in Fig. 3, the extended line of the injection direction of all secondary nozzles 3, all there is angle with between secondary nozzle 3 and the line at housing 5 center and to correspond to the angle of the angle of each secondary nozzle 3 equal, namely, the installation direction of secondary nozzle 3 non-perpendicular to housing 5, but form leaf wheel-like structure as shown in Figure 3, and the incline direction of each secondary nozzle 3 is all identical.
By being arranged on the second steam inlet 21 on secondary nozzle 3 to mash uperize, can heating to mash be realized, overcoming flow resistance simultaneously and realizing the steady liquid level that the stable flow field of mash and flowing, the fragmentation of maintenance one-level formed.
Composition graphs 2 is with shown in Fig. 3, in a preferred embodiment, first order jet nozzle 6 is equidistantly and between two symmetrically around at least 2 nozzles that housing 5 periphery wall is arranged, and secondary nozzle 3 be equidistantly and between two symmetrically around at least 2 nozzles of housing 5 periphery wall setting.Fig. 2 and embodiment illustrated in fig. 3 in, first order jet nozzle 6 is optionally 4 nozzles, and secondary nozzle 3 is optionally 4 nozzles, is certainly to be understood that, the quantity of first order jet nozzle 6 and secondary nozzle 3 all can be determined according to concrete service condition, and the utility model is not limited thereto.
Referring again to Fig. 1, in a preferred embodiment, one-level reducing and expansion passage 19 has continuous print first contraction section 191, first straight section 192 and the first diffuser 193, and secondary reducing and expansion passage 23 has continuous print second contraction section 231, second straight section 232 and the second diffuser 233.Particularly, the direction bottom along housing 5 top to it, the first contraction section 191 and the second contraction section 231 all tilt towards the axis of housing 5, that is, the first contraction section 191 and the second contraction section 231 are close to each other is gradually similar to funnel shaped contraction-like structure to be formed; And the first diffuser 193 and the second diffuser 233 open away from the axis of housing 5 all gradually, that is, the first diffuser 193 and the second diffuser 233 are mutual to form up-narrow and down-wide round table-like structure gradually; In addition, the first straight section 192 and the second straight section 232 all with the axis being parallel of housing 5.By the above, form one-level reducing and expansion passage 19 as shown in Figure 1 and secondary reducing and expansion passage 23.That is, one-level reducing and expansion passage 19 is similar with secondary reducing and expansion passage 23, and the two is all arranged to first gradually near shrinking and then the mutual cross sectional shape away from expansion.
For one-level reducing and expansion passage 19 and secondary reducing and expansion passage 23, the hydrodynamics process that the two all can realize, and mash reduces from flow velocity, pressure brings up to flow velocity increase, earth pressure release, namely realizes the process of twice double expansion fragmentation.
In addition, as shown in Figure 1, housing 5 top is provided with the upper cover 12 for encapsulating housing 5 in a preferred embodiment, sealing is interconnected by vessel flange 8 between upper cover 12 and housing 5, and on the surface of upper cover 12, the outer surface of the first contraction section 191 and the second diffuser 233 all can be provided with pressure gauge and thermometer, for force value and the temperature value of the above-mentioned each position of monitoring, wherein, all pressure gauges and thermometer all can be electrically connected with first order jet nozzle 6 and secondary nozzle 3 by controller respectively.That is, first each monitoring point pressure and temperature that pressure gauge and thermometer can sense by the utility model sends into controller, then data-signal is sent to first order jet nozzle 6 and secondary nozzle 3 thus controls the emitted dose of first order jet nozzle 6 and secondary nozzle 3 by controller, namely, realize controlling mash/steam injection amount according to housing 5 internal load, thus realize the level stability controlling housing 5 inside further.And above-mentioned control structure can use any control mode well known by persons skilled in the art to realize, such as temperature controller, pressure controller etc.Particularly, in FIG, being arranged on, upper cover 12 is the first pressure gauge 10 and the first thermometer 11, and being arranged on, the first contraction section 191 is the second pressure gauge 18 and the second thermometer 17, and what be arranged on the second diffuser 233 outer surface is the 3rd pressure gauge 22 and the 3rd thermometer 1.
In an alternate embodiment of the invention, the sidewall of housing 5 can be provided with at least 2 sample taps be spaced apart from each other.In the embodiment shown in fig. 1, the sidewall of the housing 5 between first order jet nozzle 6 and one-level reducing and expansion passage 19 can arrange the first sample tap 16, and the sidewall of housing 5 between secondary nozzle 3 and secondary reducing and expansion passage 23 can arrange the second sample tap 2.Certainly should be appreciated that quantity and the setting position of sample tap all can be determined according to concrete service condition, the utility model is not limited thereto.
In an alternate embodiment of the invention, the sidewall of housing 5 can also be provided with liquid level gauge 4 and visor 13, for liquid level in monitoring housing 5 and observation housing 5 inner case, wherein, liquid level gauge 4 can be electrically connected by controller with first order jet nozzle 6, that is, the housing 5 inside liquid level height sensed by liquid level gauge 4 controls the mash/steam injection amount of first order jet nozzle 6, thus realizes the level stability controlling housing 5 inside.In other embodiments, between the internal perisporium of housing 5 and the periphery wall of the first diffuser 193, dividing plate 20 can be provided with, to be separated housing 5 inner space.Can also arrange mouth 9 for subsequent use on the surface of upper cover 12, the sidewall of housing 5 can also arrange bearing 7.In an alternate embodiment of the invention, as shown in Figure 1, housing 5 can be arranged through the separated two-part structure of dividing plate 20, and this two-part structure housing is interconnected by flange at dividing plate 20 place.That is, the upper semisection of housing 5 can have first order jet nozzle 6 and one-level reducing and expansion passage 19, and the lower semisection of housing 5 has secondary nozzle 3 and secondary reducing and expansion passage 23, and separated by dividing plate 20 between these two sections and utilize flange to be interconnected at dividing plate 20 place.Certainly should be appreciated that housing 5 is arranged to integral type to be also fine, in addition when housing 5 is two-part, the bottom of the lower semisection of housing 5 can also continue through other structures of Flange joint.In other words, if service condition needs, the linkage section that a section has secondary nozzle 3 and secondary reducing and expansion passage 23 can be connected again in lower semisection bottom.The utility model is not limited to this.Particularly, the concrete shattering process of composition graphs 1 to Fig. 3 to injection destroyer of the present utility model is described.In the course of work of destroyer of the present utility model, shattering process can be divided into one-level shattering process and two-stage crushing process.
(1) one-level is broken: the mash fluid containing bulky grain (such as granularity is greater than 3mm) starch injects from the mash entrance 15 of first order jet nozzle 6, and steam injects from the first steam inlet 14 of first order jet nozzle 6, and through machinery, the steam atomization of first order jet nozzle 6 with penetrate after being broken into atomizing particle.In this step, the machinery of first order jet nozzle 6, steam atomization and shattering process detailed process are: by high pressure mash fluid by first order jet nozzle 6, under the effect of high speed centrifugation power with the expansionary force that reduces pressure suddenly, make the bulky grain starch in mash obtain centrifugal breaking and expand fragmentation suddenly, it is preliminary broken that this process can make the starch granules realized in atomization fragmentation, fluid of the liquid in fluid realize; Further in order to improve crushing effect, steam is passed into first order jet nozzle 6 to strengthen the fragmentation to starch granules further.
Then, material after back fragmentation can experience shock shattering process: be arranged symmetrically with on same pitch circle by multiple first order jet nozzle 6, be atomized through these first order jet nozzles 6, broken mash particle and drop, meet in the way arriving equipment center, heart region forms impingement region in a device, makes between the droplet of atomization and starch granules, starch granules realizes clashing into fragmentation at impingement region each other, friction is broken.
Further, through processes such as backflow, friction, turbulent flows, can mixed process be strengthened and define turbulence flow flied structure suitable in housing 5, there occurs in each process of further flowing in turbulence flow flied the turbulent dispersion of particle, the oscillating movement of particle, particle each other, drop and intergranular collision friction etc.This can make the bulky grain starch in fluid reduce gradually, and obtains further broken refinement.Complete and clash into broken material and can draw together passage 19 bottom in one-level contracting and form liquid level, by one-level contracting draw together passage 19 complete reduce from flow velocity, pressure brings up to that flow velocity increases, the expansion shattering process of earth pressure release, so far completes starch granules one-level shattering process.
(2) two-stage crushing: by the second steam inlet 21 of secondary nozzle 3 to mash uperize, realize heating to mash.Structure is set by the above-mentioned of secondary nozzle 3 simultaneously, the steady liquid level that flow resistance realizes the stable flow field of mash and flowing, the fragmentation of maintenance one-level is formed can be overcome.Then, mash by again realizing the hydrodynamics process reduced from flow velocity, pressure brings up to flow velocity increase, earth pressure release after secondary reducing and expansion passage 23, thus completes compound expansion fragmentation.So far the initial liquefaction process that the utility model sprays destroyer is completed.Certainly be to be understood that, the description of the utility model being sprayed to the above-mentioned course of work of destroyer is only schematic, each step and process all can carry out increasing or deleting, and also can suitably exchange between each step, these changes and exchange all can be determined according to concrete service condition, and the utility model is not limited thereto.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.