阅读说明：本技术 一种解决酸奶基料配置时蛋白质沉淀的装置及其使用方法 (Device for solving protein precipitation during yogurt base material preparation and using method thereof ) 是由 杨大明 于 2021-07-19 设计创作，主要内容包括：本发明涉及酸奶配置装置,具体为一种解决酸奶基料配置时蛋白质沉淀的装置及其使用方法,一种解决酸奶基料配置时蛋白质沉淀的装置包括有配酸罐和混料罐,配酸罐上设有纯净水进水口和出料口,混料罐顶部设有进酸管,出料口通过管道与进酸管连接,混料罐内设有混料罐搅拌器,配酸罐内设有配酸罐搅拌器,出料口与进酸管之间的管道上连接有气动泵,混料罐内设有pH计,本发明能够根据混料罐内的pH值改变气动泵的流量从而改变配算速度,还能够根据混料罐内的pH值改变配酸罐搅拌器的搅拌速度,方便进行自动控制,能够实现自动配酸,有效避免了酸奶基料配置时蛋白质沉淀的问题,提高产品质量,保证产品口感。(The invention relates to a yoghourt preparation device, in particular to a device for solving protein precipitation during yoghourt base material preparation and a use method thereof, the device for solving protein precipitation during yoghourt base material preparation comprises an acid preparation tank and a mixing tank, the acid preparation tank is provided with a purified water inlet and a discharge port, the top of the mixing tank is provided with an acid inlet pipe, the discharge port is connected with the acid inlet pipe through a pipeline, the mixing tank is internally provided with a mixing tank stirrer, the acid preparation tank is internally provided with the acid preparation tank stirrer, the pipeline between the discharge port and the acid inlet pipe is connected with a pneumatic pump, and the mixing tank is internally provided with a pH meter. The product quality is improved, and the product taste is ensured.)

1. A device for solving the problem of protein precipitation during the preparation of yogurt base materials is characterized in that: the acid preparing device comprises an acid preparing tank (1) and a mixing tank (9), wherein a purified water inlet (2) and a discharge port (3) are arranged on the acid preparing tank (1), the purified water inlet (2) is arranged at the top of the acid preparing tank (1), the discharge port (3) is arranged at the bottom of the acid preparing tank (1), an acid inlet pipe (10) is arranged at the top of the mixing tank (9), the discharge port (3) is connected with the acid inlet pipe (10) through a pipeline, a mixing tank stirrer (11) is arranged in the mixing tank (9), and a mixing tank stirrer (4) is arranged in the acid preparing tank (1).

2. The device for solving the problem of protein precipitation during the preparation of the yogurt base according to claim 1, wherein: the acid-feeding device is characterized in that a pneumatic pump (7) is connected to a pipeline between the discharge port (3) and the acid-feeding pipe (10), a discharge pipe (6) is connected between the discharge port (3) and an inlet of the pneumatic pump (7), and an acid-feeding pipe (8) is connected between an outlet of the pneumatic pump (7) and the acid-feeding pipe (10).

3. The device for solving the problem of protein precipitation during the preparation of the yogurt base according to claim 2, wherein: the pneumatic pump (7) is connected with a compressed air control valve (14), and the compressed air control valve (14) is connected with a compressed air pipeline.

4. The device for solving the problem of protein precipitation during the preparation of the yogurt base according to claim 3, wherein: and a pH meter (15) is arranged in the mixing tank (9).

5. The device for solving the problem of protein precipitation during yoghurt base preparation according to claim 4, wherein the device comprises: the bottom end of the acid inlet pipe (10) is provided with an acid inlet spray head (13), and the acid inlet spray head (13) is arranged in the material mixing tank (9).

6. The device for solving the problem of protein precipitation during yogurt base preparation according to claim 5, wherein: the acid blending tank stirrer (4) comprises a motor I (5), the motor I (5) is arranged above the acid blending tank (1), the material blending tank stirrer (11) comprises a motor II (12), and the motor II (12) is arranged above the material blending tank (9).

7. The use method of the device for solving the protein precipitation during the preparation of the yoghourt base material comprises the device for solving the protein precipitation during the preparation of the yoghourt base material as claimed in claim 6, and is characterized in that: the pH value in the mixing bowl (9), i.e. the pH meter (15) reading, is related to the mixing bowl stirrer (11) by:

r=30e-0.6^|pH-4.6|（4.6＜pH＜5.2）；

r =20 (pH < 4.6 or pH > 5.2);

in the formula, r is the rotating speed of the stirrer (11) of the mixing tank, and r is the unit of revolutions per minute.

8. The use method of the device for solving the problem of protein precipitation in the preparation of the yogurt base according to claim 7, wherein the device comprises: the relationship between the pH value in the mixing tank (9), namely the reading of the pH meter (15), and the flow of the pneumatic pump (7) is as follows:

q=10kg/min （4.0＜pH＜5.2）；

q =5kg/min (pH < 4.0 or pH > 5.2).

Technical Field

The invention relates to a yoghourt preparation device, in particular to a device for solving the problem of protein precipitation during the preparation of a yoghourt base material and a use method thereof.

Background

In the process of producing and preparing the yoghourt, the yoghourt or the milk base needs to be added with acid, and the yoghourt or the milk base material can cause protein precipitation in the yoghourt base material due to the acid addition, so that the product quality is influenced.

The prior art generally adopts a mode of adding a stabilizer to solve the problem of protein precipitation in the process of preparing a yoghourt base material, but the stabilizer only reduces the speed of protein precipitation by increasing the viscosity of a product so as to prolong the shelf life of the product, so that the problem of solubility of protein cannot be fundamentally solved, and meanwhile, the milk can generate great viscosity during fermentation in the production process, great inconvenience is brought to production, and the taste of yoghourt can be influenced by the addition of the stabilizer.

Disclosure of Invention

The invention aims to provide a device for solving the problem of protein precipitation in the process of preparing a yoghourt base material and a use method thereof, which do not need to add a stabilizer and effectively solve the problem of protein precipitation in the process of preparing the yoghourt base material.

The invention relates to a device for solving protein precipitation during yoghurt base material preparation, which comprises an acid preparation tank and a mixing tank, wherein the acid preparation tank is provided with a purified water inlet and a purified water outlet, the purified water inlet is arranged at the top of the acid preparation tank, the purified water outlet is arranged at the bottom of the acid preparation tank, the top of the mixing tank is provided with an acid inlet pipe, the acid outlet is connected with the acid inlet pipe through a pipeline, the mixing tank is internally provided with a mixing tank stirrer, and the acid preparation tank stirrer is arranged in the acid preparation tank.

Furthermore, a pneumatic pump is connected to a pipeline between the discharge port and the acid inlet pipe, a discharge pipe is connected to an inlet of the pneumatic pump, and an acid inlet pipe is connected to an outlet of the pneumatic pump and the acid inlet pipe.

Furthermore, the pneumatic pump is connected with a compressed air control valve, and the compressed air control valve is connected with a compressed air pipeline.

Further, a pH meter is arranged in the mixing tank.

Furthermore, an acid inlet nozzle is arranged at the bottom end of the acid inlet pipe and is arranged in the material mixing tank.

Further, the acid blending tank stirrer comprises a motor I, the motor I is arranged above the acid blending tank, the material blending tank stirrer comprises a motor II, and the motor II is arranged above the material blending tank.

The pure water inlet is used for the entering of pure water, the acid preparation tank stirrer stirs in the acid preparation tank, the acid liquor in the acid preparation tank passes through the discharge gate and adds the compounding jar from the acid inlet pipe through the pipeline, a feed inlet is additionally arranged on the compounding jar and is used for adding yoghourt or milk base, the compounding jar stirrer stirs the yoghourt or milk base and the acid liquor in the compounding jar.

The pneumatic pump is arranged to provide power for the acid liquor to enter the mixing tank from the acid preparation tank, and in addition, the flow rate of the pneumatic pump, namely the acid adding speed, can be conveniently changed by adjusting the compressed air by using the pneumatic pump.

The setting of pH meter is used for the change condition in the real-time supervision compounding jar to change the operating mode according to the pH in the compounding jar.

The use method of the device for solving the problem of protein precipitation during the preparation of the yogurt base material comprises the following steps of:

r=30e-0.6^|pH-4.6|；

r=20；

in the formula, r is the rotating speed of the stirrer of the mixing tank, and the unit of r is revolutions per minute.

Further, the relationship between the pH value in the mixing tank, i.e. the reading of the pH meter, and the flow rate of the pneumatic pump is as follows:

q=10kg/min ；

q=5kg/min 。

the invention has the beneficial effects that: including acid mixing tank and compounding jar, be equipped with pure water inlet and discharge gate on the acid mixing tank, the pure water inlet is established at acid mixing tank top, and the discharge gate is established at acid mixing tank bottom, and compounding tank top is equipped with into acid pipe, and the discharge gate passes through the pipeline to be connected with into acid pipe, is equipped with compounding jar agitator in the compounding jar, is equipped with the acid mixing jar agitator in the acid mixing tank, discharge gate and advance and be connected with the pneumatic pump on the pipeline between the acid pipe, the compounding jar in be equipped with the pH meter. The invention can change the flow of the pneumatic pump according to the pH value in the mixing tank so as to change the blending speed, can also change the stirring speed of the stirrer of the acid blending tank according to the pH value in the mixing tank, is convenient for automatic control, can realize automatic acid blending, effectively avoids the problem of protein precipitation during the preparation of the yoghourt base material, improves the product quality and ensures the product taste.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. the acid preparation tank 2 is a purified water inlet; 3. a discharge port; 4. stirring the acid preparation tank; 5. a motor I; 6. a discharge pipe; 7. a pneumatic pump; 8. an acid inlet pipe; 9. a mixing tank; 10. an acid inlet; 11. a mixer of the mixing tank; 12. a motor II; 13. an acid inlet spray head; 14. a compressed air control valve; and 15, a pH meter.

Detailed Description

As shown in figure 1, the invention relates to a device for solving protein precipitation during yogurt base preparation, which is characterized in that: including acid mixing tank 1 and compounding jar 9, be equipped with pure water inlet 2 and discharge gate 3 on the acid mixing tank 1, pure water inlet 2 is established at acid mixing tank 1 top, and discharge gate 3 is established in acid mixing tank 1 bottom, and compounding jar 9 top is equipped with into acid pipe 10, and discharge gate 3 passes through the pipeline to be connected with into acid pipe 10, is equipped with compounding jar agitator 11 in the compounding jar 9, is equipped with in the acid mixing jar 1 and prepares with acid jar agitator 4.

Further, a pneumatic pump 7 is connected to a pipeline between the discharge port 3 and the acid inlet pipe 10, a discharge pipe 6 is connected between the discharge port 3 and an inlet of the pneumatic pump 7, and an acid inlet pipe 8 is connected between an outlet of the pneumatic pump 7 and the acid inlet pipe 10.

Further, the pneumatic pump 7 is connected with a compressed air control valve 14, and the compressed air control valve 14 is connected with a compressed air pipeline.

Further, a pH meter 15 is arranged in the mixing tank 9.

Further, an acid inlet nozzle 13 is arranged at the bottom end of the acid inlet pipe 10, and the acid inlet nozzle 13 is arranged in the material mixing tank 9.

Further, the acid blending tank stirrer 4 comprises a motor I5, the motor I5 is arranged above the acid blending tank 1, the material blending tank stirrer 11 comprises a motor II 12, and the motor II 12 is arranged above the material blending tank 9.

The use method of the device for solving the problem of protein precipitation during the preparation of the yoghourt base material is characterized in that the relation between the pH value in the mixing tank 9, namely the reading of the pH meter 15, and the stirrer 11 of the mixing tank is as follows:

r=30^{e-0.6|pH-4.6|}4.6＜pH＜5.2；

r =20pH < 4.6 or pH > 5.2;

in the formula, r is the rotating speed of the material mixing tank stirrer 11, and r is the unit of revolutions per minute.

Further, the relationship between the pH value in the mixing tank 9, i.e. the reading of the pH meter 15, and the flow rate of the pneumatic pump 7 is:

q=10kg/min 4.0＜pH＜5.2；

q =5kg/min pH < 4.0 or pH > 5.2.

The purified water inlet 2 is used for the entering of purified water, the acid preparation tank stirrer 4 is used for stirring in the acid preparation tank 1, acid liquor in the acid preparation tank 1 is added into the mixing tank 9 from the acid inlet pipe 10 through the discharge port 3 and the pipeline, a feed port is additionally arranged on the mixing tank 9 and used for adding yoghourt or milk base, and the mixing tank stirrer 11 is used for mixing and stirring the yoghourt or milk base and the acid liquor in the mixing tank 9.

The pneumatic pump 7 is arranged for providing power for the acid liquor to enter the mixing tank 9 from the acid preparation tank 1, and in addition, the flow rate of the pneumatic pump 7, namely the acid adding speed, can be conveniently changed by adjusting the compressed air by using the pneumatic pump 7.

The pH meter 15 is arranged for monitoring the pH change condition in the mixing tank 9 in real time so as to change the working condition according to the pH in the mixing tank 9.

The invention adds the acidic solution in the mixing tank 1 to the mixing tank 9 containing the yoghurt or milk base by means of the pneumatic pump 7, since the continuous addition of the acidic solution to the base causes the pH in the milk-containing base to decrease continuously, which leads to the formation of a precipitate of the protein if not passed quickly when the pH reaches 4.6, i.e. the isoelectric point of the protein. When the pH value is between 4.0 and 5.2, the stirring speed of the stirrer 11 of the mixing tank is controlled, and the acid adding speed is increased, so that the base material quickly passes through the isoelectric point.

The initial pH value of the base material is generally more than 5.2, the rotating speed of the stirrer 11 of the mixing tank is 20 revolutions per minute before the pH value is 5.2, the rotating speed of the stirrer 11 of the mixing tank is gradually increased along with the reduction of the pH value, when the pH value reaches 4.6, the rotating speed of the stirrer 11 of the mixing tank reaches the maximum value of 30 revolutions per minute, and when the pH value is 4.6, the rotating speed of the stirrer 11 of the mixing tank starts to stir at 20 revolutions per minute until the blending is finished. Meanwhile, the flow of the pneumatic pump 7 is divided into two steps, when the pH value is between 4.0 and 5.2, the flow of the pneumatic pump 7 is increased to 2 times of the original flow, namely 10kg per minute, and when the pH value is at other values, the sample adding amount is 5kg per minute.