阅读说明：本技术 一种绵白糖的气力式自动添加转化糖浆的系统及方法 (Pneumatic automatic syrup adding and converting system and method for soft white sugar ) 是由 贾建民 王伟 刘军 龚焕春 王海 于 2020-05-14 设计创作，主要内容包括：本发明公开了一种绵白糖的气力式自动添加转化糖浆的系统及方法,方法的步骤为：PLC控制系统打开排空阀使排空管路畅通,放空延时时间过后打开进料阀,转化糖浆箱内的转化糖浆经过进料管路进入储罐；PLC控制系统关闭进料阀和排空阀使储罐内达到预期液位,并打开空气阀；空气阀打开后,往储罐里加压等待；当分离机降速,PLC控制系统检测到降低到分离机所设定的转速时打开出料阀,储罐内的压缩空气把转化糖浆打到分离机里；放空延时时间过后物料进入到回收箱,PLC控制系统关闭出料阀和空气阀,同时打开排空阀,周期结束。本发明使用PLC控制系统自动添加转化糖浆,降低生产成本；操作简单、调节准确、转化糖浆喷洒均匀稳定,绵糖还原糖合格率可达99％以上。(The invention discloses a pneumatic system and a pneumatic method for automatically adding invert syrup into soft sugar, wherein the method comprises the following steps: the PLC control system opens the emptying valve to enable the emptying pipeline to be smooth, opens the feeding valve after the emptying delay time, and the invert syrup in the invert syrup box enters the storage tank through the feeding pipeline; the PLC control system closes the feed valve and the exhaust valve to enable the liquid level in the storage tank to reach the expected liquid level, and opens the air valve; after the air valve is opened, pressurizing the storage tank for waiting; when the separator is decelerated, the PLC control system opens the discharge valve when detecting that the rotating speed is reduced to the set rotating speed of the separator, and the compressed air in the storage tank pumps the invert syrup into the separator; and after the emptying delay time is over, the material enters a recovery box, the PLC control system closes the discharge valve and the air valve and opens the emptying valve at the same time, and the cycle is ended. According to the invention, the PLC control system is used for automatically adding the invert syrup, so that the production cost is reduced; simple operation, accurate adjustment, uniform and stable spraying of the invert syrup, and the qualified rate of the soft sugar reducing sugar can reach more than 99 percent.)

1. A pneumatic automatic syrup adding and converting system for soft white sugar is characterized by comprising:

the feeding and discharging device comprises a invert syrup box, a feeding pipeline, a storage tank, a discharging pipeline and a recovery box, wherein the invert syrup box, the feeding pipeline, the storage tank, the discharging pipeline and the recovery box are sequentially in one-way flow, a discharging valve and a separator are sequentially arranged on a branch of the discharging pipeline along the discharging direction, and a spraying device is arranged in the separator;

the metering device comprises a liquid level meter arranged on the storage tank, a flow meter arranged on the feeding pipeline and a material detector arranged in the separator and used for detecting the material quantity;

the pneumatic device comprises an emptying pipeline communicated with the storage tank, wherein an emptying valve and a compressed air inlet are arranged on the emptying pipeline, and an air valve is arranged in front of the compressed air inlet;

the cleaning device comprises a hot water inlet arranged on the emptying pipeline, a hot water valve arranged in front of the hot water inlet and a drain valve arranged on the discharging pipeline;

and the PLC control system is provided with a display screen, and the feeding and discharging device, the metering device, the pneumatic device and the cleaning device are respectively in wireless connection with the PLC control system.

2. The pneumatic automatic invert syrup adding system of soft sugar according to claim 1, wherein said storage tanks are arranged in parallel and,

the emptying pipeline is provided with a plurality of first branches which are respectively communicated with the storage tanks, and the compressed air inlet, the hot water inlet and the emptying valve are all arranged on the first branches;

the feeding pipeline is provided with a plurality of second branches which are respectively communicated with the storage tanks, and the flow meter and the feeding valve are arranged on the second branches.

3. The pneumatic system for automatically adding invert syrup of soft sugar according to claim 2, wherein the number of the discharging pipes is the same as that of the storage tanks, and the discharging pipes are communicated with each other.

4. The system for pneumatic automatic invert syrup addition of soft white sugar of claim 1 wherein said spraying means comprises:

the guniting pipeline is fixed in the separator and is vertically arranged;

and the spray nozzles are sequentially arranged on the slurry spraying pipeline, and the spraying directions of the spray nozzles are horizontal or inclined downwards by 30 degrees.

5. The pneumatic automatic invert syrup adding system for soft sugar according to claim 1, wherein the display screen displays the emptying delay time, the feeding flow and the storage tank liquid level, and the display screen is provided with a digital adjusting button for adjusting the numerical value of the display screen.

6. The system for pneumatic automatic invert syrup addition of soft sugar of claim 1 wherein an air filter is placed in front of the compressed air inlet.

7. The method of adding invert syrup made by the system of claim 1, comprising the steps of:

the PLC control system opens the emptying valve to enable the emptying pipeline to be smooth, after the set emptying delay time is over, the PLC control system opens the feeding valve, and the invert syrup in the invert syrup box enters the storage tank through the feeding pipeline;

the PLC control system detects the liquid level of each storage tank by using a liquid level meter according to the flow data of the flow meter, closes the feed valve and the exhaust valve to enable the liquid level in the storage tank to reach the expected liquid level, and opens the air valve;

after the air valve is opened, compressed air is input into the compressed air inlet, and the compressed air is pressurized in the storage tank for waiting;

when the separator reduces the speed after high-speed separation, the PLC control system opens the discharge valve when detecting that the rotating speed is reduced to the set rotating speed of the separator, and the compressed air in the storage tank pumps the invert syrup into the separator;

after the set discharging time is over, the material enters a recovery box, a PLC control system closes a discharging valve and an air valve and opens an emptying valve at the same time, and the next cycle is started after one cycle is finished.

8. The method as claimed in claim 7, wherein after the sugar separation of the separator is finished, the PLC control system performs manual cleaning, opens the hot water valve and the drain valve, and closes the hot water valve and the drain valve manually or automatically after cleaning.

Technical Field

The invention relates to the technical field of sugar production, in particular to a pneumatic system and a pneumatic method for automatically adding invert syrup into soft white sugar.

Background

Soft sugar is called soft sugar for short, and is also a frequently used seasoning when making baked cakes and dishes. The soft white sugar has soft and fine texture, fine crystal particles, and about 2.0 percent of invert syrup is sprayed in the production process.

The existing method for adding invert syrup is generally manual operation, and adding invert syrup on conveying equipment of soft sugar. For example, the Chinese patent application CN 108315500A discloses a production method of soft white sugar, which uses high fructose corn syrup to replace the conversion syrup made by white granulated sugar hydrolysis, and sugar crystal grains are cleaned, filtered, evaporated, concentrated, crystallized and cleaned, and then the sugar crystal grains are put into a screw conveyer to be added with the high fructose corn syrup. In the technical scheme, no improvement is provided for the addition of the invert syrup, and the manual addition mode is generally adopted in the prior art.

The mode of manually adding the invert syrup has the following defects:

(1) special manpower is needed to take charge of the addition, and labor is consumed;

(2) the accuracy of the manually added dose cannot be kept uniform and the product quality is not stable.

In view of this, there is a need to improve the adding structure of the existing invert syrup to facilitate the operation and improve the quality of the soft sugar product.

Disclosure of Invention

The invention aims to solve the technical problems that the existing invert syrup adding structure is improved, manpower is consumed, and the quality of soft sugar products is unstable.

In order to solve the technical problems, the technical scheme adopted by the invention is to provide a pneumatic automatic invert syrup adding system for soft sugar, which comprises:

the device comprises a feeding and discharging device, a invert syrup box, a feeding pipeline, a storage tank, a discharging pipeline and a recovery box, wherein materials flow in one direction in sequence;

the metering device comprises a liquid level meter arranged on the storage tank, a flow meter arranged on the feeding pipeline, and a material detector arranged in the separator and used for detecting the material quantity;

the pneumatic device comprises an emptying pipeline communicated with the storage tank, wherein an emptying valve and a compressed air inlet are arranged on the emptying pipeline, and an air valve is arranged in front of the compressed air inlet;

the cleaning device comprises a hot water inlet arranged on the emptying pipeline, a hot water valve arranged in front of the hot water inlet and a drain valve arranged on the discharging pipeline;

and the PLC control system is provided with a display screen, and the feeding and discharging device, the metering device, the pneumatic device and the cleaning device are respectively in wireless connection with the PLC control system.

In another preferred embodiment, the storage tanks are a plurality of tanks arranged in parallel, and,

the emptying pipeline is provided with a plurality of first branches which are respectively communicated with the storage tanks, and the compressed air inlet, the hot water inlet and the emptying valve are all arranged on the first branches;

the feeding pipeline is provided with a plurality of second branches which are respectively communicated with the storage tanks, and the flow meter and the feeding valve are arranged on the second branches.

In another preferred embodiment, the number of the discharging pipelines and the storage tanks is the same, and the discharging pipelines are mutually communicated.

In another preferred embodiment, the spraying device comprises:

the guniting pipeline is fixed in the separator and is vertically arranged;

and the spray nozzles are sequentially arranged on the slurry spraying pipeline, and the spraying directions of the spray nozzles are horizontal or inclined downwards by 30 degrees.

In another preferred embodiment, the emptying delay time, the feeding flow and the storage tank liquid level are displayed on the display screen, and a digital adjusting button for adjusting the numerical value of the display screen is arranged on the display screen.

In another preferred embodiment, an air filter is provided in front of the compressed air inlet.

The invention also discloses a method for adding invert syrup according to the system, which comprises the following steps:

the PLC control system opens the emptying valve to enable the emptying pipeline to be smooth, after the set emptying delay time is over, the PLC control system opens the feeding valve, and the invert syrup in the invert syrup box enters the storage tank through the feeding pipeline;

the PLC control system detects the liquid level of each storage tank by using a liquid level meter according to the flow data of the flow meter, closes the feed valve and the exhaust valve to enable the liquid level in the storage tank to reach the expected liquid level, and opens the air valve;

after the air valve is opened, compressed air is input into the compressed air inlet, and the compressed air is pressurized in the storage tank for waiting;

when the separator reduces the speed after high-speed separation, the PLC control system opens the discharge valve when detecting that the rotating speed is reduced to the set rotating speed of the separator, and the compressed air in the storage tank pumps the invert syrup into the separator;

after the set discharging time is over, the material enters a recovery box, a PLC control system closes a discharging valve and an air valve and opens an emptying valve at the same time, and the next cycle is started after one cycle is finished.

In another preferred embodiment, after the sugar separation of the separator is finished, the PLC control system performs manual cleaning, opens the hot water valve and the drain valve, and closes the hot water valve and the drain valve manually or automatically after cleaning.

Compared with the prior art, the invention has the advantages that when the separator feeds materials, the material detector sends a signal to detect the inner sugar layer, so that the material quantity is obtained, the PLC control system adds the invert syrup in the storage tank into the separator according to the material quantity of the separator in proportion, in the process, before the separator finishes a working cycle and when the speed is reduced to a certain preset value, the PLC control system controls the pneumatic device, the discharge valve and the nozzle device to realize automatic addition of the invert syrup, and after saccharification discharge in one stage, the cleaning device is controlled to clean the storage tank. The invention has the following advantages:

1. the PLC control system is used for adding the invert syrup, so that the automation degree is high, the operation is simple, 3 workers can be reduced in each sugar period, and the production cost is reduced;

2. the addition proportion of the invert syrup is that the PLC control system adds according to the proportion, and the adjustment is accurate and convenient;

3. the invert syrup adopts a pneumatic device, the invert syrup in the storage tank is added into the separator by utilizing compressed air, and then is sprayed by utilizing the nozzle device, so that the uniformity and stability of the spraying amount and the speed are effectively ensured, the product quality is further improved, the yield of the soft sugar reducing sugar can reach more than 99 percent, the technical level of the process is improved, and the situations that the process indexes of the product are influenced by uncertain factors in manual operation and the like are avoided.

Drawings

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a schematic structural diagram of a display screen of the PLC control system of the present invention;

FIG. 3 is a schematic structural view of a nozzle device of the present invention;

fig. 4 is a block diagram of the automatic control process of the present invention.

Detailed Description

The invention provides a pneumatic system and a pneumatic method for automatically adding invert syrup into soft sugar, and the invention is explained in detail by combining the attached drawings and the specific implementation mode of the specification.

As shown in fig. 1 and fig. 2, the pneumatic system for automatically adding invert syrup of soft sugar provided by the invention comprises a feeding and discharging device 10, a metering device 20, a pneumatic device 30, a cleaning device 40 and a PLC control system 50.

The feeding and discharging device 10 comprises a invert syrup box 11, a feeding pipeline 14, a storage tank 12, a discharging pipeline 15 and a recovery box 13, wherein the invert syrup box 11, the feeding pipeline 14, the storage tank 12, the discharging pipeline 15 and the recovery box 13 are sequentially in one-way flow, a discharging valve 151 and a separator 16 are sequentially arranged on a branch of the discharging pipeline 15 along the discharging direction, and a spraying device 161 is arranged in the separator 16.

The metering device 20 comprises a level gauge 21 arranged on the tank 12, a flow meter 22 arranged on the feed line 15 and a detector arranged in the separator 16 for detecting the amount of material. The metering device 20 functions to quantitatively meter the invert syrup, and when the invert syrup in the storage tank 12 is lower than a set liquid level, the feed valve 141 is opened, and when the set liquid level is reached, the PLC control system closes the feed valve 141.

The pneumatic device 30 comprises an evacuation line 31 communicating with the tank 12, the evacuation line 31 being provided with an evacuation valve 32 and a compressed air inlet, the compressed air inlet being provided with an air valve 331. The compressed air inlet is connected with the air compressor, and air pressure is set according to needs. The pneumatic device 30 is used to provide power for the addition of invert syrup, and the discharge valve 141 is opened to uniformly spray the invert syrup into the sugar layer in the separator 16 through the spraying device. The pneumatic device 30 is matched with the operation of the separator 16 to form a complete continuous automatic invert syrup adding structure.

The washing device 40 comprises a hot water inlet arranged on the evacuation line 31, a hot water valve 411 arranged on the hot water inlet and a blow-down valve 152 arranged on the discharge line 15. After the sugar separation is finished, the system pipeline is cleaned through the manual control hot water valve 411, and then the system pipeline is discharged into the recovery tank 13 through the blow-down valve 152, so that the recovery, treatment and reutilization of the internal sugar are realized.

The PLC control system is provided with a display screen 50, and the feeding and discharging device 10, the metering device 20, the pneumatic device 30 and the cleaning device 40 are respectively in wireless connection with the PLC control system, so that the converted syrup is automatically added in proportion, quantitatively and regularly.

In another preferred embodiment, the storage tanks 12 are provided in a plurality arranged in parallel, and,

the evacuation pipeline 31 is provided with a plurality of first branches 310 respectively communicated with the storage tanks 12, and the compressed air inlet, the hot water inlet and the evacuation valve 32 are all arranged on the first branches 310;

the feed line 14 is provided with a plurality of second branches 140 respectively communicating with the respective storage tanks 12, and the flow meter 22 and the feed valve 141 are provided on the second branches 140.

In the embodiment, a plurality of sets of feeding and discharging systems are arranged, each set of feeding and discharging system can respectively realize feeding and discharging of the system, compressed air entering and hot water entering, synchronous control operation can be realized, alternate working and cleaning modes can be adopted according to needs, normal maintenance and overhaul of each feeding and discharging system can be guaranteed, production work can be kept uninterrupted, and production efficiency is improved.

Further, in the above embodiment, the number of the discharge pipes 15 is the same as that of the storage tanks 12, and the discharge pipes 15 are communicated with each other. In this embodiment, the discharge pipeline 15 is collected into a whole passage and collected into one recycling box 13, so that the number of recycling boxes is reduced, and recycling and collection are facilitated.

In another preferred embodiment, shown in fig. 3, the spraying device 16 comprises:

a guniting pipeline 160 fixed in the separator and vertically arranged,

and a plurality of nozzles 161 are arranged on the slurry spraying pipeline 160 in sequence, and the spraying direction of the nozzles 161 is horizontal or inclined downwards by 30 degrees.

In this embodiment, the spraying device 16 is provided with a plurality of nozzles 161, the guniting pipeline 160 is vertically arranged, the spraying device is long and is arranged on the guniting pipeline 160, the spraying angles of the nozzles 161 are different, the nozzles can be directly contacted with sugar layers at different depths and positions, the spraying uniformity is improved, and the working time of the separator is shortened.

In another preferred embodiment, the time delay for emptying, the time for discharging, the feed rate and the liquid level in the tank 12 are displayed on the display screen 50, which is provided with a digital adjusting button for adjusting the numerical value of the display screen. In this embodiment, the user of service can adjust evacuation time, ejection of compact time, feed flow and the liquid level of storage tank 12 as required, can carry out nimble adjustment to the different requirements of production scale, convenient operation, and the precision is high. The time delay for evacuation refers to the time before the charge, when other valves are closed and only the evacuation valve is opened to evacuate the air from the interior of the tank 12 and the evacuation line 31. The discharging time refers to the time for discharging after the separator finishes working when the discharging valve is opened. The feed rate refers to the flow rate of the material in the feed line 14. The level of the tank 12 is used to detect the amount of material in the tank 12 in real time.

In another preferred embodiment, an air filter 312 is provided in front of the compressed air inlet. In this embodiment, compressed air can enter the storage tank 12 after being filtered, thereby avoiding the final product quality reduction caused by unqualified air quality.

As shown in fig. 4, the present invention also provides a method for adding invert syrup according to the above system, comprising the steps of:

the PLC control system opens the emptying valve 32 to lead the emptying pipeline 31 to be smooth, after the set emptying delay time is over, the PLC control system opens the feeding valve 141, and the invert syrup in the invert syrup box 11 enters the storage tank 12 through the feeding pipeline 14;

the PLC control system detects the liquid level of each storage tank 12 by using the liquid level meter 21 according to the flow data of the flow meter 22, closes the feeding valve 141 and the emptying valve 32 to enable the expected liquid level in the storage tank 12 to be achieved, and opens the air valve 331;

after the air valve 331 is opened, compressed air is input into the compressed air inlet, and the storage tank 12 is pressurized for waiting;

when the separator 16 slows down after high-speed separation, the PLC control system opens the discharge valve 151 when detecting that the rotating speed is reduced to the set rotating speed of the separator 16, and the invert syrup is pumped into the separator 16 by compressed air;

after the set discharging time, the material enters the recycling bin 13, the PLC control system closes the discharging valve 151 and the air valve 331, and opens the evacuation valve 32 at the same time, and the next cycle is started after one cycle is finished.

In another preferred embodiment, after the sugar separation of the separator 16 is finished, the PLC control system performs manual cleaning, opens the hot water valve 411 and the blowdown valve 152, and after cleaning, manually or automatically closes the hot water valve 411 and the blowdown valve 152. After the staged sugar separation of the system is finished, the storage tank 12 is cleaned, so that the conversion syrup is recycled and utilized, and the waste is prevented.

Compared with the prior art, the invention has the advantages that when the separator feeds materials, the material detector sends a signal to detect the inner sugar layer, so that the material quantity is obtained, the PLC control system adds the invert syrup in the storage tank into the separator according to the material quantity of the separator in proportion, in the process, before the separator finishes a working cycle and when the speed is reduced to a certain preset value, the PLC control system controls the pneumatic device, the discharge valve and the nozzle device to realize automatic addition of the invert syrup, and after saccharification discharge in one stage, the cleaning device is controlled to clean the storage tank. The invention has the following advantages:

1. the PLC control system is used for adding the invert syrup, so that the automation degree is high, the operation is simple, 3 workers can be reduced in each sugar period, and the production cost is reduced;

2. the addition proportion of the invert syrup is that the PLC control system adds according to the proportion, and the adjustment is accurate and convenient;

3. the invert syrup adopts a pneumatic device, the invert syrup in the storage tank is added into the separator by utilizing compressed air, and then is sprayed by utilizing the nozzle device, so that the uniformity and stability of the spraying amount and the speed are effectively ensured, the product quality is further improved, the yield of the soft sugar reducing sugar can reach more than 99 percent, the technical level of the process is improved, and the situations that the process indexes of the product are influenced by uncertain factors in manual operation and the like are avoided.

The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.