CN217591946U - Dual homogeneity of goat's milk system of evening - Google Patents

Abstract

The utility model provides a supereven system of dual homogeneity of goat's milk belongs to dairy products and makes technical field, include: the system comprises a batching tank, a batching milk homogenizer and an MVR falling-film evaporator which are sequentially connected through a batching milk pipeline, wherein the material output end of the MVR falling-film evaporator is sequentially connected with an ultrahigh-temperature instantaneous sterilizer and a high-pressure pump through a concentrated milk pipeline, and the high-pressure pump is provided with a homogenizing head; the batching tank is used for temporarily storing batching milk; the homogenizing head of the proportioned milk homogenizer has the same structure as that of the homogenizing head of the high-pressure pump, and the pipe diameters of the discharge pipelines of the proportioned milk homogenizer and the high-pressure pump are 1/2-2/3 of the pipe diameter of the feed pipeline. The utility model discloses a supereven system of dual homogeneity of goat milk for it is not good to solve current goat milk homogeneity system homogeneity effect, leads to material unstability behind the homogeneity, and precipitation, layering phenomenon are serious, and then lead to liquid dairy products to appear precipitating the accumulation, and the component distributes unevenly in the solid-state dairy products, quality, solubility and the not good problem of taste.

Description

Dual homogeneity of goat's milk is super even system

Technical Field

The utility model relates to a dairy products manufacture technical field especially relates to a supereven system of dual homogeneity of goat's milk.

Background

Goat milk is recognized in the world as milk closest to human milk, is small in protein formation, small in fat globule (the volume of fat particles is one third of that of cow milk), easy to digest and absorb by human bodies, particularly suitable for infants, and is regarded as a fine product in milk with the advantages of rich nutrition, easiness in absorption and the like, and is called as 'king of milk'. Sheep milk differs from cow or human milk in its higher digestibility, unique alkalinity, high buffering capacity and therapeutic value in human medicine and nutrition, and is favored for sheep milk products due to the requirement of healthy foods (e.g. sheep milk does not cause obesity on long-term consumption) and as a replacement for consumers who are allergic or intolerant to cow milk. However, due to the inherent mutton smell of the goat milk, the incompatibility of water and fat in the goat milk, the easy caking of fat balls and the like, the liquid pure goat milk cannot be stored for a long time at normal temperature, which limits the development of goat milk products to a great extent.

In view of the above, in the production of goat milk, in addition to the problem of smell elimination, the nutrient substances in goat milk need to be well maintained and meet the taste requirements of the public. Thus, the handling of dairy products on an industrial scale usually involves homogenization, i.e. homogenization of the dairy product by mechanical means to stabilize the fat emulsion in the dairy product and thus prevent gravity separation, thus preventing fat globules from lumping. However, the homogenization requirements of different dairy products may vary to a large extent, as important parameters of the homogenization process: the pressure with which the liquid food product is forced through the small gap, and the size of the small gap, are also important. The homogenizer is also needed to be used in the preparation process of the goat milk product, and the goat milk is refined under the triple effects of extrusion, strong impact and decompression expansion, so that the goat milk can be mixed more uniformly, the fat in the goat milk is crushed to be finer, and the whole goat milk product system is more stable.

However, in the existing goat milk homogenizing system, various small molecular additives are added into goat milk in the front-stage blending stage, so that the additives are not uniformly dispersed with particles of the original goat milk, the settling speed, particle size and viscosity of the two-phase particles are different, the homogenizer cannot fully homogenize the materials, and the emulsifying effect is poor, so that even if homogenization is performed, the homogenized blended milk is still unstable, the precipitation and layering phenomena are severe, the precipitation accumulation and other conditions can occur in the storage of the homogenized liquid dairy product, and a consumer considers that the dairy product has a quality problem, or when the solid dairy product is produced, the homogenization effect is poor, the ingredient distribution in the solid dairy product is uneven, and the quality, solubility and taste are poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a supereven system of dual homogeneity of goat milk for it is not good to solve current goat milk homogeneity system homogeneity effect, and it is unstable to lead to batching milk behind the homogeneity, deposits, layering phenomenon is serious, and then leads to liquid dairy products to appear depositing the accumulation, and the component distributes unevenly among the solid-state dairy products, quality, solubility and the not good problem of taste.

The utility model provides a supereven system of dual homogeneity of sheep breast, include: the system comprises a batching tank, a batching milk homogenizer and an MVR falling-film evaporator which are sequentially connected through a batching milk pipeline, wherein the material output end of the MVR falling-film evaporator is sequentially connected with an ultrahigh-temperature instantaneous sterilizer and a high-pressure pump through a concentrated milk pipeline; the high-pressure pump is provided with a homogenizing head; the batching jar is used for keeping in batching milk.

The further optimized technical proposal is that the homogenizing head of the proportioned milk homogenizer has the same structure with the homogenizing head of the high-pressure pump, and the pipe diameters of the discharge pipelines of the proportioned milk homogenizer and the high-pressure pump are 1/2-2/3 of the pipe diameter of the feed pipeline; the operation pressure of the homogenizing head of the proportioned milk homogenizer is 2.5 times of the operation pressure of the homogenizing head of the high-pressure pump.

In a further preferred technical scheme, the output end of the high-pressure pump is also connected with a dry powder tower and/or a concentrated milk storage tank through a concentrated milk pipeline.

Further preferred technical scheme still, still be connected with dense milk scratch jar through dense milk pipeline between MVR falling film evaporator and the ultra-high temperature instantaneous sterilization machine.

Further preferably, a temporary storage tank for sterilized concentrated milk is connected between the ultrahigh-temperature instantaneous sterilizer and the high-pressure pump through a concentrated milk pipeline.

Further preferred technical scheme still, the comdenstion water output of MVR falling film evaporator's heating chamber still is connected with the condensation and takes off the mutton smell jar, and the gas output end that the condensation took off the mutton smell jar is connected with the vacuum pump, and the liquid output end that the condensation took off the mutton smell jar passes through the pipeline and discharges to the wastewater disposal basin, and the gas output end of vacuum pump directly empties.

Further preferably, the ultrahigh-temperature instantaneous sterilization machine is a clean steam direct-injection ultrahigh-temperature instantaneous sterilization machine.

Further preferably, the ultrahigh-temperature instantaneous sterilization machine is provided with two sets of protein holding tubes with the same structure, and the working time of each set of protein holding tube is not more than 4 hours.

Further preferred technical scheme still, temperature detector and weighing instrument are installed to the batching jar.

Further preferably, the MVR falling film evaporator and the outer side of the concentrated milk pipeline are both provided with heat preservation devices with the same structure; the heat preservation device comprises a heat preservation material layer arranged on the outer sides of the MVR falling film evaporator and the concentrated milk pipeline and a protective layer for fixing the heat preservation material layer.

Further, according to the preferable technical scheme, the heat insulation material used by the heat insulation material layer is rock wool; the protective layer is made of stainless steel plate.

The utility model provides a supereven system of dual homogeneity of goat's milk, through taking dual homogeneity operation, compare with prior art, have following beneficial effect:

1) Through taking dual homogeneity operation to goat's milk and batching milk, the homogeneity effect has been showing and has been promoted, the homogeneity effect is good, fat ball and fat particle to in the goat's milk decompose, make addition material and former goat's milk fuse more fully, increase the degree of consistency and the fineness of batching milk, make the smoothness and the fineness of batching milk better, the taste of dairy products is more mellow, can guarantee the stability of fat, make the more difficult upward floating phenomenon that appears the fat ball, fat upward floating and product deposit in the dairy products have been prevented to appear, the shelf life of dairy products has been prolonged, it is good to obtain texture, the taste is exquisite, the good concentrated milk of stability.

2) The more uniform the texture of the ingredient milk, the better the quality of finished products of liquid dairy products and solid dairy products, and the more convenient the absorption of human body, and the concentrated milk has the advantages of uniform state, fine and smooth taste, good flavor and no precipitation and delamination phenomena in shelf life no matter the concentrated milk is stored or made into solid dairy products such as milk powder.

3) The double-homogenizing super-homogenizing system not only provides a homogenizing effect, but also provides sterilizing, concentrating and mutton smell removing effects, does not destroy the nutrient components of the goat milk, avoids thermal shock to the goat milk caused by long-time heating, can sterilize and remove mutton smell, has high heat exchange efficiency, has low colony number of dairy products, has light mutton smell, has longer quality guarantee period, and also solves the problems of uneven distribution of components in the dairy products, poor quality, solubility and taste, easy occurrence of precipitation accumulation and layering during storage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a goat milk double homogenization and super-homogenization system provided by an embodiment of the present invention;

fig. 2 is a schematic structural view of a goat milk double homogenization and super-homogenization system according to another embodiment of the present invention;

fig. 3 is a schematic structural view of a heat preservation device according to an embodiment of the present invention.

Description of the reference numerals:

1. batching milk pipeline, 2, batching jar, 3, batching milk homogenizer, 4, MVR falling film evaporation ware, 5, dense milk pipeline, 6, super high temperature instantaneous sterilization machine, 7, high-pressure pump, 8, dense milk temporary storage tank, 9, sterilization dense milk temporary storage tank, 10, dry powder tower, 11, dense milk storage tank, 21, temperature-detecting appearance, 22, weighing instrument, 41, condensation deodour jar, 42, vacuum pump, 43, wastewater disposal basin, 51, insulation material layer, 52, protective layer.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts also belong to the protection scope of the present invention.

As shown in fig. 1, the utility model provides a supereven system of dual homogeneity of sheep milk, include: the system comprises a batching tank 2, a batching milk homogenizer 3 and an MVR falling film evaporator 4 which are sequentially connected through a batching milk pipeline 1, wherein the material output end of the MVR falling film evaporator 4 is sequentially connected with an ultrahigh temperature instantaneous sterilizer 6 and a high pressure pump 7 through a concentrated milk pipeline 5; the high-pressure pump 7 is provided with a homogenizing head; the batching tank 2 is used for temporarily storing batching milk.

The utility model discloses in, through carrying out dual homogeneity with batching milk, the homogeneity effect is good for addition material and former goat's milk fuse more fully, increase the degree of consistency and the fineness of batching milk, make the taste of dairy products more mellow, can guarantee the stability of fat, be difficult to more appear the come-up phenomenon of fat ball, obtain that the texture is good, the taste is fine and smooth, the good concentrated milk of stability. The more uniform the texture of the ingredient milk, the better the quality of finished products of the liquid dairy product and the solid dairy product, and the more convenient the absorption of human body, and the condensed milk has the advantages of uniform state, delicate taste, good flavor, no sedimentation and no layering in shelf life no matter the condensed milk is stored or made into the solid dairy product such as milk powder.

As an improvement of the implementation, the structure of a homogenizing head of the proportioned milk homogenizer 3 is the same as that of a homogenizing head of the high-pressure pump 7, and the pipe diameters of discharge pipelines of the proportioned milk homogenizer 3 and the high-pressure pump 7 are 1/2-2/3 of the pipe diameter of a feed pipeline; the operating pressure of the homogenizing head of the proportioner milk homogenizer 3 is 2.5 times the operating pressure of the homogenizing head of the high pressure pump 7.

In a specific example, the operating pressure of the homogenizing head of the proportioner milk homogenizer 3 is 250bar and the operating pressure of the homogenizing head of the high pressure pump 7 is 100bar. In a specific production, the homogenization temperature of the ingredient milk homogenizer 3 and the high-pressure pump 7 may be a homogenization temperature conventional in the art; the homogenization pressure may be a homogenization pressure conventional in the art.

The homogenizing head of the proportioned milk homogenizer 3 is the same as the homogenizing head of the high-pressure pump 7 in structure, the pipe diameters of the discharge pipelines of the proportioned milk homogenizer 3 and the high-pressure pump 7 are 1/2-2/3 of the pipe diameter of the feed pipeline, the proportioned milk in the feed pipeline with a large pipe diameter is crushed by utilizing the high-pressure plunger, and is discharged through the discharge pipeline with a small pipe diameter, the super-uniform effect is achieved through double homogenization, and the crushing and the homogenization of the proportioned milk are completed.

The batching milk of batching jar 2 middle storage includes the addition material of micromolecule such as goat's milk and vitamin, preferably, can keep in the batching jar temperature for 65-70 ℃ batching milk, then through the first homogeneity of batching milk isotropic symmetry 3, wherein the operating pressure of batching milk isotropic symmetry 3 is 250bar, first homoenergetic makes the fat subdivision and the dispersion in the goat's milk even, effectively prevented the come-up of fat in the goat's milk and protein precipitation scheduling problem, make the texture of batching milk even unanimous, improve the stability of batching milk, be favorable to prolonging shelf life.

The primarily homogenized ingredient milk is concentrated by an MVR falling-film evaporator 4, the MVR falling-film evaporator 4 can provide low-temperature constant-temperature vacuum concentration operation, the working temperature is 70 ℃, and the total dry matter in the concentrated milk obtained by concentration is increased to 55%. And then delivering the concentrated milk to an ultrahigh-temperature instant sterilization machine 6 to kill bacteria in the concentrated milk and ensure that the bacterial colony number in the sterilized concentrated milk is less than 50cfu/mL. And finally, feeding the mixture into a high-pressure pump 7 for secondary homogenization, wherein the working pressure of a homogenizing head of the high-pressure pump 7 is 100bar. After secondary homogenization, the aromatic fatty acid in the concentrated milk is released more thoroughly, the quality of the concentrated milk is more uniform and consistent, and the fat-soluble vitamin A, the vitamin D and other additives in the concentrated milk are also uniformly distributed, so that the absorption and assimilation effects of the concentrated milk in a human body are improved, the taste of the concentrated milk is more mellow, tasty and refreshing, and the concentrated milk is more favorable for human body digestion and absorption.

As a modification of this embodiment, as shown in fig. 2, the output end of the high-pressure pump 7 is further connected to a dry powder tower 10 and/or a thick milk storage tank 11 through the thick milk pipe 5.

When the output end of the high-pressure pump 7 is communicated with the dry powder tower 10, the concentrated milk is used as the raw material of the dry powder tower 10, and can be used for producing solid dairy products such as goat milk powder, the goat milk powder prepared from the dual-homogeneous concentrated milk has uniform component distribution, good quality and superior solubility and mouthfeel, and the problems of uneven component distribution, poor quality, poor solubility and poor mouthfeel in the solid dairy products are solved. If the subsequent powder drying tower 10 is not suitable for working, the output end of the high-pressure pump 7 is communicated with the concentrated milk storage tank 11, the concentrated milk can be temporarily stored, the quality is stable during the storage period of the concentrated milk, and the phenomena of deposition accumulation and layering of the existing liquid dairy product which is only homogenized once can not occur.

As an improvement to the implementation, a thick milk temporary storage tank 8 is also connected between the MVR falling film evaporator 4 and the ultra-high temperature instantaneous sterilization machine 6 through a thick milk pipeline 5. When the subsequent working section is not suitable for production (such as equipment failure, maintenance and the like), the output end of the MVR falling-film evaporator 4 is communicated with the concentrated milk temporary storage tank 8, so that the concentrated milk can be temporarily stored.

As an improvement to the implementation, a sterilized thick milk temporary storage tank 9 is also connected between the ultrahigh-temperature instant sterilizer 6 and the high-pressure pump 7 through a thick milk pipeline 5. Similarly, when the subsequent working section is not suitable for production, the output end of the ultrahigh-temperature instantaneous sterilizer 6 can be communicated with the sterilized concentrated milk temporary storage tank 9 for temporarily storing the sterilized concentrated milk.

As an improvement of the implementation, the condensed water output end of the heating chamber of the MVR falling-film evaporator 4 is also connected with a condensation de-odoring tank 41, the gas output end of the condensation de-odoring tank 41 is connected with a vacuum pump 42, the liquid output end of the condensation de-odoring tank 41 is discharged to a waste water pool 43 through a pipeline, and the gas output end of the vacuum pump 42 is directly emptied.

In actual production, the condensed water output end of the heating chamber of the MVR falling-film evaporator 4 is the water in the ingredient milk, after the water is evaporated in the heating chamber, part of volatile mutton smell substances are vaporized, secondary steam is formed in the separation chamber, the secondary steam is pressurized by the compressor and is sent back to the heating chamber, and the secondary steam absorbs heat in the heating chamber by the ingredient milk to form condensed water.

The vacuum pump 42 is used for providing micro negative pressure, so that the ingredient milk reaches a boiling state at a low temperature and a constant temperature (the inlet and outlet temperature is 70 ℃), although the content of short-chain free fatty acid in the goat milk is increased during primary homogenization, the goat odor of the goat milk can be aggravated, the goat odor substance in the MVR falling-film evaporator 4 can be brought out by the vaporized moisture, and the nutritional ingredients of the goat milk are not damaged in the concentration process, and the goat odor can be removed. Therefore, the part of condensed water output by the condensed water output end is pumped into the condensation de-odoring tank 41, gas-liquid separation is completed in the condensation de-odoring tank 41, the separated gas is directly discharged, the effect of de-odoring is achieved by the aid of the volatile odorous substances partially removed from the goat milk, and the separated liquid is directly sent to the waste water tank 43 for waste water treatment.

As an improvement of this embodiment, the ultra-high temperature instantaneous sterilizer 6 is a clean steam direct-injection ultra-high temperature instantaneous sterilizer. The ultrahigh-temperature instant sterilization method can be clean steam direct-injection ultrahigh-temperature instant sterilization, but is not limited to clean steam direct-injection ultrahigh-temperature instant sterilization. Preferably, the ultra-high temperature sterilization is performed at 135-145 deg.C for 3-5s.

The clean steam direct-injection type ultrahigh-temperature instant sterilization machine utilizes a clean steam direct-injection process, so that steam is in direct contact with concentrated milk, ultrahigh-temperature instant sterilization is carried out, and thermal shock of long-time heating on goat milk can be avoided. Compared with a clean steam direct-injection type ultrahigh-temperature instantaneous sterilization mode, indirect ultrahigh-temperature instantaneous sterilization generally adopts steam to heat and sterilize outside a concentrated milk pipeline, but concentrated milk in the pipeline is easy to deteriorate and block on the pipe wall under the ultrahigh-temperature condition, so that the problems of nonuniform heat exchange, poor sterilization effect and the like are caused. Therefore, the dirt in the clean steam direct-injection type ultrahigh-temperature instantaneous sterilization machine is very little, which means less shutdown cleaning time and lower overall cleaning cost, and saves production cost.

The utility model discloses in, combine together the sterilization temperature of superelevation and short heat time, carried out the operation of disinfecting to concentrated milk, heat exchange efficiency is high, can ensure the cleanliness factor of product, compare in current only disinfect to the goat's milk before the batching and the technique of not disinfecting after the concentration, the utility model discloses a concentrated milk also has longer shelf life with lower bacterial colony number. Meanwhile, the sterilizing time of the clean steam direct-injection type ultrahigh-temperature instantaneous sterilizing machine is extremely short, and the influence on the taste, color and nutritive value of the concentrated milk can be reduced to the maximum extent.

As an improvement of the implementation, the ultrahigh-temperature instantaneous sterilization machine 6 is provided with two sets of protein holding tubes with the same structure, and the working time of each set of protein holding tube is not more than 4h.

Protein holding tubes are provided in heat treatment equipment such as instant sterilizers, and are used for stabilizing proteins to provide an opportunity for liquid dairy products to be chemically stabilized, thereby preventing the proteins from sintering and depositing on hot surfaces to form dirt. However, as the protein holding tube is used for a certain period of time, the heat-resisting bacteria are gradually increased, so that the equipment must be stopped and the instruments must be cleaned, and the equipment is usually stopped and cleaned after running for 4 hours.

In order to guarantee during 8 h's continuous operation, the utility model discloses will super high temperature instantaneous sterilization machine 6 reform transform, on original device basis, add one set of albumen holding tube, every set of albumen holding tube can switch to another set after 4h of continuous operation, and the albumen holding tube that stops up can wash to wait for next time to switch and operate.

As a modification of this embodiment, the dispensing tank 2 is equipped with a temperature detector 21 and a weighing instrument 22.

Since the subsequent MVR falling-film evaporator 4 has a working temperature of 70 ℃, in order to save the working load of the MVR falling-film evaporator 4, the temperature of the ingredient milk is regulated to 65-70 ℃ when the ingredient tank 2 is used for ingredient. The temperature detector 21 is arranged for monitoring the temperature of the material in the dosing tank 2, and the weighing instrument 22 is convenient for accurately weighing the processing amount of the dosed milk.

As an improvement to the implementation, the outside of the MVR falling-film evaporator 4 and the outside of the thick milk pipeline 5 are both provided with heat preservation devices with the same structure; as shown in fig. 3, the heat insulating means includes a heat insulating material layer 51 provided on the outer side of the MVR falling film evaporator 4 and the concentrated milk pipe 5, and a protective layer 52 fixing the heat insulating material layer 51.

The heat preservation device can preserve heat of the MVR falling film evaporator 4 and the concentrated milk pipeline 5, wherein the heat preservation device is arranged on the outer side of the pipeline/equipment to prevent the pipeline/equipment from being locally overheated or too cold, so that the temperature of the concentrated milk in the conveying process is uniform, protein dirt is not generated, and the conveying smoothness of the pipeline/equipment is ensured.

As an improvement to this embodiment, the insulation material used in the insulation material layer 51 is rock wool; the protective layer 52 is made of stainless steel.

The present invention will be described in further detail with reference to specific examples.

Example 1:

the supereven system of the dual homogeneity of goat milk, concrete during operation, the batching milk that the temperature that will keep in batching jar 2 is 65-70 ℃ sends into batching milk homogenizer 3 through batching milk pipeline 1, and through the first homogeneity of batching milk homogenizer 3 that operating pressure is 250bar, the fat segmentation and the dispersion in messenger's goat milk are even, improve the stability of batching milk.

And (3) carrying out low-temperature constant-temperature vacuum concentration on the primarily homogenized ingredient milk by using an MVR falling film evaporator 4 with the working temperature of 70 ℃, and increasing the total dry matter in the concentrated milk obtained by concentration to 55%. And then delivering the concentrated milk to an ultrahigh-temperature instant sterilization machine 6 through a concentrated milk pipeline 5 to kill bacteria in the concentrated milk, and ensuring that the colony count in the sterilized concentrated milk is less than 50cfu/mL. Finally, the mixture is sent into a high-pressure pump 7 through a thick milk pipeline 5, and secondary homogenization is carried out under the action of a homogenizing head of the high-pressure pump 7 with the working pressure of 100bar. After the secondary homogenization, the aromatic fatty acid in the concentrated milk is released more thoroughly, the quality of the concentrated milk is more uniform and consistent, the fat-soluble vitamin A, the vitamin D and other additives in the concentrated milk are also uniformly distributed, the taste of the concentrated milk is more mellow and refreshing, and the concentrated milk is more beneficial to human body digestion and absorption. After the secondary homogenization is finished, the concentrated milk is sent out of the dual-homogenization super-homogenization system by the high-pressure pump 7 and enters the subsequent production process.

Example 2:

the goat milk dual-homogenization ultra-homogenizing system is used for feeding the mixed milk into the mixing tank 2 with the weighing instrument 22 for temporary storage during specific work, monitoring the material temperature in the mixing tank 2 through the temperature detector 21 and finally ensuring that the output temperature of the mixed milk is 65-70 ℃. Then passed through a batch homogenizer 3 at a working pressure of 250bar for primary homogenization. And (3) performing low-temperature constant-temperature vacuum concentration on the primarily homogenized ingredient milk by using an MVR falling-film evaporator 4 with the working temperature of 70 ℃, and increasing the total dry matter in the concentrated milk obtained by concentration to 55%. The condensed water output end of the heating chamber of the MVR falling-film evaporator 4 is also connected with a condensation de-odoring tank 41, the condensed water completes gas-liquid separation in the condensation de-odoring tank 41, the gas output end of the condensation de-odoring tank 41 is connected with a vacuum pump 42, the liquid output end of the condensation de-odoring tank 41 is discharged to a waste water tank 43 through a pipeline, and the gas output end of the vacuum pump 42 is directly emptied to achieve the de-odoring effect.

When the subsequent working section is not suitable for production (such as equipment failure, maintenance and the like), the output end of the MVR falling-film evaporator 4 is communicated with the concentrated milk temporary storage tank 8, so that the concentrated milk can be temporarily stored. When the subsequent working section is in production, the concentrated milk is sent to a clean steam direct-injection type ultrahigh-temperature instantaneous sterilization machine through a concentrated milk pipeline 5, bacteria in the concentrated milk are killed under the conditions that the temperature is 135-145 ℃ and the time is 3-5s, and the colony number in the sterilized concentrated milk is ensured to be less than 50cfu/mL. And the direct ultrahigh-temperature instantaneous sterilization machine is provided with two sets of protein holding pipes with the same structure, after the work of each set of protein holding pipe is operated for 4 hours, the other set of protein holding pipe is switched, the inactive protein holding pipe can be cleaned, and the next switching and operation are waited. Similarly, when the subsequent process is not suitable for production (such as equipment failure, maintenance and the like), the output end of the clean steam direct-injection ultrahigh-temperature instant sterilizer is communicated with the sterilized concentrated milk temporary storage tank 9 to temporarily store the sterilized concentrated milk.

The sterilized concentrated milk is sent into a high-pressure pump 7 to be homogenized for the second time through a homogenizing head with the working pressure of 100bar. After the secondary homogenization is finished, the concentrated milk is sent out of the dual-homogenization ultra-homogenization system by the high-pressure pump 7 and enters the dry powder tower 10 or the concentrated milk storage tank 11.

Wherein, in order to prevent the local overheating or the over-cooling of the pipeline/equipment and ensure the uniform temperature of the concentrated milk in the conveying process without generating protein dirt and the like, the outside of the MVR falling-film evaporator 4 and the outside of the concentrated milk pipeline 5 are both provided with heat preservation devices with the same structure; the heat preservation device comprises a heat preservation material layer 51 (the heat preservation material is rock wool) arranged on the outer side of the MVR falling film evaporator 4 and the concentrated milk pipeline 5, and a protective layer 52 (the material is stainless steel plate) for fixing the heat preservation material layer 51.

Comparative example 1

In the comparative example, when the existing goat milk homogenizing system works specifically, the blended milk with the temperature of 65-70 ℃ is subjected to primary homogenization by the blended milk homogenizing machine with the working pressure of 250bar, so that the fat in the goat milk is finely divided and uniformly dispersed, and the stability of the blended milk is improved. And (3) carrying out low-temperature constant-temperature vacuum concentration on the homogenized ingredient milk by using an MVR falling film evaporator with the working temperature of 70 ℃, and increasing the total dry matter in the concentrated milk obtained by concentration to 55%. And then delivering the concentrated milk to an ultrahigh-temperature instant sterilization machine to kill bacteria in the concentrated milk, and ensuring that the colony number in the sterilized concentrated milk is less than 50cfu/mL. And finally, delivering the concentrated milk into a concentrated milk storage tank for temporary storage by a high-pressure pump without a homogenizing head.

The concentrated milk sent out from the system in the comparative example 1 and the concentrated milk sent out from the concentrated milk in the example 1 are respectively taken and stored under the same condition, the concentrated milk in the comparative example 1 has obvious fat floating and protein precipitation layering phenomena in the shelf life, particularly from the 3 rd month, and the concentrated milk in the example 1 has uniform and consistent texture, no layering and no peculiar smell. It can be seen, the utility model discloses an among the super even system of dual homogeneity, the thick milk section homogeneity operation that is provided by the high-pressure pump that has the homogenizing head is to realizing the utility model discloses an effect is indispensable, has lacked this operation, then can lead to producing quality structure and stability effect variation, does not reach the utility model discloses a super even effect of excellent homogeneity.

It should be noted that the utility model discloses a temperature and the time setting of each equipment in the super even system of dual homogeneity all have PLC controller control to accomplish, and this system can carry out automated control and operation.

It should be noted that, in the present invention, the detailed structure of some devices is not detailed, but belongs to the prior art known to those skilled in the art, and therefore, the detailed description thereof is omitted here.

It should be noted that, under the guidance of the present invention, those skilled in the art can also make partial modifications to the above system. For example, the equipment in the system is also provided with a liquid level meter, an overflow/nitrogen pipeline and the like; the conveying pipeline in the system is provided with a pump, a pressure sensor, a flowmeter or a temperature sensor and the like among different units or devices and equipment, and is also provided with different valves, such as a pressure relief valve, a pressure regulating valve, a safety valve, a pneumatic valve and the like which are used for regulating and stabilizing the pressure of the whole system, and the opening of the valves can be regulated to regulate the material flow in the pipeline.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; while the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides a supereven system of dual homogeneity of goat's milk which characterized in that includes: the system comprises a batching tank, a batching milk homogenizer and an MVR falling-film evaporator which are sequentially connected through a batching milk pipeline, wherein the material output end of the MVR falling-film evaporator is sequentially connected with an ultrahigh-temperature instantaneous sterilizer and a high-pressure pump through a concentrated milk pipeline; the high-pressure pump is provided with a homogenizing head;

the batching tank is used for temporarily storing batching milk;

the structure of the homogenizing head of the proportioned milk homogenizer is the same as that of the homogenizing head of the high-pressure pump, and the pipe diameters of the discharge pipelines of the proportioned milk homogenizer and the high-pressure pump are 1/2-2/3 of the pipe diameter of the feed pipeline;

the operation pressure of the homogenizing head of the ingredient milk homogenizer is 2.5 times of the operation pressure of the homogenizing head of the high-pressure pump.

2. The goat milk dual homogenization ultra-homogenization system as claimed in claim 1, wherein: the output end of the high-pressure pump is also connected with a dry powder tower and/or a concentrated milk storage tank through a concentrated milk pipeline.

3. The goat milk dual-homogenization ultra-homogenization system as claimed in claim 1, characterized in that: and a thick milk temporary storage tank is also connected between the MVR falling film evaporator and the ultrahigh-temperature instantaneous sterilization machine through the thick milk pipeline.

4. The goat milk dual homogenization ultra-homogenization system as claimed in claim 1, wherein: and a sterilization thick milk temporary storage tank is also connected between the ultrahigh-temperature instantaneous sterilizer and the high-pressure pump through a thick milk pipeline.

5. The goat milk dual homogenization ultra-homogenization system as claimed in claim 1, wherein: the MVR falling-film evaporator is characterized in that a condensate water output end of a heating chamber of the MVR falling-film evaporator is further connected with a condensation de-odoring tank, a gas output end of the condensation de-odoring tank is connected with a vacuum pump, a liquid output end of the condensation de-odoring tank is discharged to a waste water pool through a pipeline, and a gas output end of the vacuum pump is directly emptied.

6. The goat milk dual homogenization ultra-homogenization system as claimed in claim 1, wherein: the ultrahigh-temperature instantaneous sterilization machine is a clean steam direct-injection ultrahigh-temperature instantaneous sterilization machine.

7. The goat milk dual homogenization ultra-homogenization system as claimed in claim 1, wherein: the ultrahigh-temperature instantaneous sterilization machine is provided with two sets of protein holding tubes with the same structure, and the working time of each set of protein holding tube is not more than 4 hours.

8. The goat milk dual homogenization ultra-homogenization system as claimed in claim 1, wherein: the batching jar is installed temperature detector and weighing instrument.

9. The dual homogenization ultra-homogenization system of goat milk according to any one of claims 1 to 8, wherein: the MVR falling film evaporator and the outer side of the concentrated milk pipeline are both provided with heat preservation devices with the same structure; the heat preservation device comprises a heat preservation material layer arranged on the outer sides of the MVR falling-film evaporator and the concentrated milk pipeline and a protective layer for fixing the heat preservation material layer.

10. The dual homogenization and ultra-homogenization system for goat milk according to claim 9, characterized in that: the heat insulation material used by the heat insulation material layer is rock wool; the protective layer is made of stainless steel plates.

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