Caramel color recovery equipment for soy sauce production line

Abstract

The caramel color recovery equipment for the soy sauce production line comprises a packaging barrel conveying belt, a first cleaning device, a second cleaning device, a third cleaning device and an air blowing device, and the packaging barrel conveying belt is provided with a first cleaning section, a second cleaning section and a third cleaning section in the conveying direction of packaging barrels. The first cleaning section is correspondingly provided with a first cleaning device, the second cleaning section is correspondingly provided with a second cleaning device, and the third cleaning section is correspondingly provided with a third cleaning device and an air blowing device; a cleaning solution adopted by the first cleaning device is heated soy sauce, a cleaning solution adopted by the second cleaning device is clear water or reused water, and a cleaning solution adopted by the third cleaning device is clear water. The caramel color on the inner wall of the packaging barrel can be effectively recycled, the recycling rate of the caramel color is improved, centralized treatment is achieved, sewage treatment is reduced, the packaging barrel loaded with the caramel color can be cleaned up, the labor intensity of workers is reduced, and therefore the purpose of reducing the production cost of soy sauce is achieved to a large extent.

Description

Technical Field

[0001] The utility model relates to the technical field of soy sauce manufacturing, in particular to a caramel recovery device for a soy sauce production line. Background Art

[0002] In the production process of soy sauce (especially dark soy sauce), caramel is often added to adjust the color of the soy sauce. During storage or transportation, the caramel is generally packed in plastic barrels, which can be recycled after being cleaned.

[0003] Since the viscosity of caramel is generally 800 - 3000 Pa·s (Pascal·second), it is very difficult to completely pour out the caramel in the packaging barrel. In the existing production line, the treatment method is to directly wash the caramel adhering to the inner wall of the packaging barrel with water, which will waste a large amount of clean water resources and produce a large amount of sewage, easily causing environmental pollution, thus increasing the cost of sewage treatment, causing large energy consumption, and keeping the production cost of soy sauce high. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a caramel recovery device for a soy sauce production line, which can effectively recycle the caramel adhering to the inner wall of the packaging barrel, greatly reduce the generation of sewage, and reduce the sewage treatment cost and the production cost of soy sauce.

[0005] The technical solution of the utility model is as follows: A caramel recovery device for a soy sauce production line includes a packaging barrel conveyor belt, a first cleaning device, a second cleaning device, a third cleaning device, and a blowing device. Along the conveying direction of the packaging barrel, the packaging barrel conveyor belt is provided with a first cleaning section, a second cleaning section, and a third cleaning section. The first cleaning section is correspondingly provided with a first cleaning device, the second cleaning section is correspondingly provided with a second cleaning device, and the third cleaning section is correspondingly provided with a third cleaning device and a blowing device. The cleaning liquid used by the first cleaning device is heated soy sauce, the cleaning liquid used by the second cleaning device is clean water or reused water, and the cleaning liquid used by the third cleaning device is clean water. Among them, the packaging barrel is placed upside down on the packaging barrel conveyor belt for continuous conveying and stays at the corresponding cleaning stations for a certain period of time. The first cleaning device uses heated soy sauce as the cleaning liquid to wash the inner wall and bottom of the packaging barrel, which can wash down the caramel adhering to the inner wall of the packaging barrel to a large extent. After the soy sauce and caramel are mixed, they can be recycled. The second cleaning device uses clean water or reused water as the cleaning liquid to clean the inner wall and outer wall of the packaging barrel. The reused water generated after cleaning can be recycled. As the last cleaning process, the third cleaning device uses clean water as the cleaning liquid to thoroughly clean the inner wall and outer wall of the packaging barrel. The reused water generated after cleaning can be used as the cleaning liquid of the second cleaning device for recycling. The blowing device dries the cleaned packaging barrel.

[0006] In the first cleaning section, a caramel recovery tank is provided below the packaging barrel conveyor belt, and an upper barrel station and a first cleaning station are successively arranged above the packaging barrel conveyor belt. In addition, an oil dripping station can be added after the first cleaning station. The packaging barrels cleaned at the first cleaning station are left standing at this oil dripping station for a certain period of time, and the cleaning liquid and caramel in the packaging barrels naturally drip into the caramel recovery tank below the packaging barrel conveyor belt for recovery.

[0007] The first cleaning device includes a first centrifugal pump, a first rotary spray head, a caramel recovery cylinder, a first air pump, and a caramel recovery tank. The caramel recovery tank, the caramel recovery tank, and the caramel recovery cylinder are connected in sequence through pipelines. A first air pump is provided between the caramel recovery tank and the caramel recovery cylinder. The caramel recovery cylinder is also connected to a first rotary spray head through a pipeline. A first centrifugal pump is provided between the caramel recovery cylinder and the first rotary spray head. The first rotary spray head is arranged at the first cleaning station, and the cleaning liquid sprayed by the first rotary spray head flows into the caramel recovery tank after cleaning. Among them, the heated soy sauce used as the cleaning liquid is stored in the caramel recovery cylinder. After being extracted by the first centrifugal pump, it is sent to the first rotary spray head and sprayed by the first rotary spray head to wash the inner wall of the packaging barrel. The mixed liquid of soy sauce and caramel after washing falls into the caramel recovery tank below the packaging barrel conveyor belt. When the caramel recovery tank is full, it will overflow into the caramel recovery tank. When the liquid level in the caramel recovery tank is too high, it is pumped into the caramel recovery cylinder by the first air pump for recovery or recycled for use at the first cleaning station.

[0008] There are two first cleaning stations, and the first rotary spray heads at each first cleaning station are arranged in parallel.

[0009] In the second cleaning section, a sewage recovery tank is provided below the packaging barrel conveyor belt, and a second cleaning station is provided above the packaging barrel conveyor belt. In addition, a water dripping station can be added after the second cleaning station. The packaging barrels cleaned at the second cleaning station are left standing at this water dripping station for a certain period of time, and the reused water in the packaging barrels naturally drips into the sewage recovery tank below the packaging barrel conveyor belt for recovery.

[0010] The second cleaning device includes a second centrifugal pump, a second rotary spray head, a sewage recovery tank, a second air pump, and a sewage treatment tank. The sewage recovery trough, the sewage recovery tank, and the sewage treatment tank are connected in sequence through pipelines. A second air pump is provided between the sewage recovery tank and the sewage treatment tank. The sewage recovery tank is also connected with a second rotary spray head through a pipeline. A second centrifugal pump is provided between the sewage recovery tank and the second rotary spray head. The second rotary spray head is arranged at the second cleaning station. The cleaning liquid sprayed by the second rotary spray head flows into the sewage recovery trough after cleaning. Among them, the clear water or reused water (generally reused water) stored in the sewage recovery tank as the cleaning liquid is pumped by the second centrifugal pump and sent to the second rotary spray head, which is sprayed out by the second rotary spray head to wash the inner and outer walls of the packaging barrel. The sewage (also called reused water) generated after washing falls into the sewage recovery trough under the packaging barrel conveyor belt and then flows from the sewage recovery trough into the sewage recovery tank for recycling. When the liquid level in the sewage recovery tank is too high, part of the reused water is pumped into the sewage treatment tank by the second air pump for sewage treatment or recycling.

[0011] In the third cleaning section, a reused water collecting trough is arranged under the packaging barrel conveyor belt. The reused water collecting trough is communicated with the sewage recovery trough. Above the packaging barrel conveyor belt, a third cleaning station and a blowing station are arranged in sequence. In addition, a dripping station can be added between the third cleaning station and the blowing station. The packaging barrel after being cleaned at the third cleaning station is static for a certain time at this dripping station, and the reused water in the packaging barrel naturally drips into the reused water collecting trough under the packaging barrel conveyor belt for recovery.

[0012] The third cleaning device includes a third centrifugal pump, a third rotary spray head, and a clear water buffer tank. The clear water buffer tank is connected with the third rotary spray head through a pipeline. A third centrifugal pump is provided between the clear water buffer tank and the third rotary spray head. The third rotary spray head is arranged at the third cleaning station. The cleaning liquid sprayed by the third rotary spray head flows into the reused water collecting trough after cleaning. Among them, the clear water stored in the clear water buffer tank as the cleaning liquid is pumped by the third centrifugal pump and sent to the third rotary spray head, which is sprayed out by the third rotary spray head to wash the inner and outer walls of the packaging barrel. The reused water generated after washing falls into the reused water collecting trough under the packaging barrel conveyor belt and then flows from the reused water collecting trough into the sewage recovery trough under the second cleaning station for recycling as the reused water at the second cleaning station.

[0013] The blowing device includes a blower and air nozzles. The blower is connected with the air nozzles through a pipeline. The air nozzles are arranged at the blowing station. Among them, multiple air nozzles can be provided, distributed at the bottom and outer periphery of the packaging barrel, and each air nozzle is arranged in parallel.

[0014] The cleaning liquid used in the first cleaning device is soy sauce heated to 60°C.

[0015] In the above caramel color recovery equipment, sensors can also be respectively arranged at each working station (including the barrel loading station, each cleaning station, the air blowing station, etc.) according to the actual needs of the production line, so as to improve the intelligence of the packaging barrel conveyor belt and the positioning accuracy of the packaging barrel at each working station. Liquid level sensors are respectively arranged on the liquid storage devices of each cleaning device (including the caramel color recovery tank, the caramel color recovery box, the caramel color recovery cylinder, the sewage recovery tank, the sewage recovery box, the sewage treatment cylinder, the reclaimed water collection tank 、 the clean water buffer box, etc.), so as to timely monitor the liquid level in each liquid storage device; in addition, electromagnetic valves can also be arranged on each pipeline to control the replenishment of the cleaning liquid, the recovery and collection of reclaimed water and caramel color at each working station.

[0016] The utility model has the following beneficial effects compared with the prior art:

[0017] The caramel color recovery equipment for this soy sauce production line can effectively recycle and utilize the caramel color adhering to the inner wall of the packaging barrel, improve the recovery rate of caramel color, centrally treat and reduce the treatment of sewage, can also clean the packaging barrels loaded with caramel color, and reduce the labor intensity of personnel, so as to achieve the effects of saving the use of caramel color, effectively recovering caramel color, reducing the sewage discharge volume and reducing the manual workload, thereby greatly achieving the purpose of reducing the production cost of soy sauce. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the principle of the caramel color recovery equipment for this soy sauce production line.

[0019] In the above figures, the components indicated by each reference numeral are as follows:

[0020] 1 is the first centrifugal pump, 2 is the second centrifugal pump, 3 is the third centrifugal pump, 4 is the first air pump, 5 is the second air pump, 6 is the blower, 7 is the caramel color recovery box, 8 is the sewage recovery box, 9 is the clean water buffer box, 10 is the caramel color recovery cylinder, 11 is the sewage treatment cylinder, 12 is the caramel color recovery tank, 13 is the sewage recovery tank, 14 is the reclaimed water collection tank, 15 is the packaging barrel conveyor belt, 16 is the barrel loading station, 17 is the first cleaning station, 18 is the second cleaning station, 19 is the third cleaning station, 20 is the air blowing station, 21 is the packaging barrel, 22 is the first rotary spray head, 23 is the second rotary spray head, 24 is the third rotary spray head, 25 is the air nozzle. Detailed Description of the Invention

[0021] The following combines the embodiments to further elaborate on the present utility model in detail, but the implementation manners of the present utility model are not limited thereto.

[0022] Embodiment

[0023] In this embodiment, a caramel color recovery equipment for a soy sauce production line is asFigure 1 As shown in the figure, it includes a packaging barrel conveyor belt 15, a first cleaning device, a second cleaning device, a third cleaning device and a blowing device. Along the conveying direction of the packaging barrel, the packaging barrel conveyor belt is provided with a first cleaning section, a second cleaning section and a third cleaning section. The first cleaning section is correspondingly provided with a first cleaning device, the second cleaning section is correspondingly provided with a second cleaning device, and the third cleaning section is correspondingly provided with a third cleaning device and a blowing device. The cleaning liquid used by the first cleaning device is heated soy sauce (in this embodiment, as a preferred solution, soy sauce heated to 60°C is used). The cleaning liquid used by the second cleaning device is clean water or reused water, and the cleaning liquid used by the third cleaning device is clean water. Among them, the packaging barrel 21 is placed upside down on the packaging barrel conveyor belt for continuous conveying and stays at the corresponding cleaning stations for a certain period of time. The first cleaning device uses heated soy sauce as the cleaning liquid to rinse the inner wall and bottom of the packaging barrel, and can wash down the caramel color adhered to the inner wall of the packaging barrel to a large extent. After the soy sauce and caramel color are mixed, they can be recycled. The second cleaning device uses clean water or reused water as the cleaning liquid to clean the inner wall and outer wall of the packaging barrel, and the reused water generated after cleaning can be recycled. As the last cleaning process, the third cleaning device uses clean water as the cleaning liquid to thoroughly clean the inner wall and outer wall of the packaging barrel, and the reused water generated after cleaning can be used as the cleaning liquid of the second cleaning device for recycling. The blowing device dries the cleaned packaging barrel.

[0024] In the first cleaning section, a caramel recovery tank 12 is provided below the packaging barrel conveyor belt. Above the packaging barrel conveyor belt, a barrel loading station 16 and two first cleaning stations 17 are arranged in sequence. In addition, an oil dripping station (not shown in the figure) can be added after the first cleaning station. The packaging barrels cleaned at the first cleaning station are left standing at the oil dripping station for a certain period of time, so that the cleaning liquid and caramel in the packaging barrels naturally drip into the caramel recovery tank below the packaging barrel conveyor belt for recovery. The first cleaning device includes a first centrifugal pump 1, a first rotary spray head 22, a caramel recovery cylinder 10, a first air pump 4, and a caramel recovery tank 7. The caramel recovery tank, the caramel recovery tank, and the caramel recovery cylinder are connected in sequence through pipelines. A first air pump is provided between the caramel recovery tank and the caramel recovery cylinder. The caramel recovery cylinder is also connected to a first rotary spray head through a pipeline. A first centrifugal pump is provided between the caramel recovery cylinder and the first rotary spray head. The first rotary spray head is arranged at the first cleaning station. The cleaning liquid sprayed by the first rotary spray head flows into the caramel recovery tank after cleaning. Among them, the caramel recovery cylinder stores heated soy sauce used as a cleaning liquid. After being pumped by the first centrifugal pump, it is sent to the first rotary spray head and sprayed by the first rotary spray head to wash the inner wall of the packaging barrel. The mixed liquid of soy sauce and caramel after washing falls into the caramel recovery tank below the packaging barrel conveyor belt. When the caramel recovery tank is full, it will overflow to the caramel recovery tank. When the liquid level of the caramel recovery tank is too high, it is pumped into the caramel recovery cylinder by the first air pump for recovery or recycled to the first cleaning station. There are two first cleaning stations, and the first rotary spray heads at each first cleaning station are arranged in parallel.

[0025] In the second cleaning section, a sewage recovery tank 13 is provided below the packaging barrel conveyor belt, and a second cleaning station 18 is provided above the packaging barrel conveyor belt. In addition, a dripping station (not shown in the figure) can be added after the second cleaning station. The packaging barrels cleaned at the second cleaning station are left standing at this dripping station for a certain period of time, and the reused water in the packaging barrels naturally drips into the sewage recovery tank below the packaging barrel conveyor belt for recovery. The second cleaning device includes a second centrifugal pump 2, a second rotary spray head 23, a sewage recovery tank 8, a second air pump 5, and a sewage treatment tank 11. The sewage recovery tank, the sewage recovery tank, and the sewage treatment tank are sequentially connected by pipelines. A second air pump is provided between the sewage recovery tank and the sewage treatment tank. The sewage recovery tank is also connected with a second rotary spray head through a pipeline. A second centrifugal pump is provided between the sewage recovery tank and the second rotary spray head. The second rotary spray head is arranged at the second cleaning station, and the cleaning liquid sprayed by the second rotary spray head flows into the sewage recovery tank after cleaning. Among them, the clear water or reused water (generally reused water) stored in the sewage recovery tank as the cleaning liquid is pumped by the second centrifugal pump and sent to the second rotary spray head, which is sprayed by the second rotary spray head to wash the inner and outer walls of the packaging barrel. The sewage (also called reused water) generated after washing falls into the sewage recovery tank below the packaging barrel conveyor belt and then flows from the sewage recovery tank into the sewage recovery tank for recycling. When the liquid level in the sewage recovery tank is too high, part of the reused water is pumped into the sewage treatment tank by the second air pump for sewage treatment or recycling.

[0026] In the third cleaning section, a reused water collection tank 14 is provided below the packaging barrel conveyor belt. The reused water collection tank is communicated with the sewage recovery tank. Above the packaging barrel conveyor belt, a third cleaning station 19 and a blowing station 20 are arranged in sequence. In addition, a dripping station can be added between the third cleaning station and the blowing station. The packaging barrels cleaned at the third cleaning station are left standing at this dripping station for a certain period of time, and the reused water in the packaging barrels naturally drips into the reused water collection tank below the packaging barrel conveyor belt for recovery. The third cleaning device includes a third centrifugal pump 3, a third rotary spray head 24, and a clear water buffer tank 9. The clear water buffer tank is connected with the third rotary spray head through a pipeline. A third centrifugal pump is provided between the clear water buffer tank and the third rotary spray head. The third rotary spray head is arranged at the third cleaning station, and the cleaning liquid sprayed by the third rotary spray head flows into the reused water collection tank after cleaning. Among them, the clear water stored in the clear water buffer tank as the cleaning liquid is pumped by the third centrifugal pump and sent to the third rotary spray head, which is sprayed by the third rotary spray head to wash the inner and outer walls of the packaging barrel. The reused water generated after washing falls into the reused water collection tank below the packaging barrel conveyor belt and then flows from the reused water collection tank into the sewage recovery tank below the second cleaning station for recycling as the reused water at the second cleaning station. The blowing device includes a blower 6 and a nozzle 25. The blower is connected with the nozzle through a pipeline. The nozzle is arranged at the blowing station. Among them, multiple nozzles can be provided, distributed at the bottom and the outer periphery of the packaging barrel, and each nozzle is arranged in parallel.

[0027] In the above caramel color recovery equipment, sensors can also be respectively set at each working station (including the barrel loading station, each cleaning station, the air blowing station, etc.) according to the actual needs of the production line, so as to improve the intelligence of the packaging barrel conveyor belt and the positioning accuracy of the packaging barrel at each working station. Liquid level sensors are respectively set on the liquid storage devices of each cleaning device (including the caramel color recovery tank, the caramel color recovery box, the caramel color recovery cylinder, the sewage recovery tank, the sewage recovery box, the sewage treatment cylinder, the water recovery sink 、 the fresh water buffer tank, etc.) to timely monitor the liquid level conditions in each liquid storage device; in addition, electromagnetic valves can also be set on each pipeline to control the replenishment of the cleaning liquid, the recovery and collection of reused water and caramel color at each working station.

[0028] The recovery method realized by the above caramel color recovery equipment for the soy sauce production line includes the following steps:

[0029] (1) Invert the packaging barrel and place it on the barrel loading station of the packaging barrel conveyor belt of the recovery equipment. On the premise that the surface and bottom of the packaging barrel are pre-cleaned first to remove the dust on the surface. After the packaging barrel is inverted, part of the remaining caramel color will flow down along its inner wall into the caramel color recovery tank of the equipment;

[0030] (2) Soy sauce cleaning: The packaging barrel conveyor belt transports the packaging barrel to the first first cleaning station and stops after touching the sensor. The first centrifugal pump is started, and the soy sauce at 60 °C is pressurized by the first centrifugal pump and sprayed out from the first rotating nozzle at the bottom of the packaging barrel conveyor belt to form a water column to impact the caramel color adhered to the inner wall and bottom of the packaging barrel. After the soy sauce and the caramel color are mixed, they flow into the caramel color recovery tank again;

[0031] After the packaging barrel conveyor belt transports the packaging barrel to the second first cleaning station and touches the sensor, repeat the same cleaning operation as the first first cleaning station;

[0032] (3) Dripping oil: After cleaning with 60 °C soy sauce, the packaging barrel conveyor belt drives the packaging barrel to run to the dripping oil station. At this station, the mixture of soy sauce and caramel color will naturally flow down into the caramel color recovery tank when the packaging barrel is in a static state. The caramel color recovery tank is connected to the caramel color recovery box. After the caramel color recovery tank is full, it overflows to the caramel color recovery box. When the liquid level in the caramel color recovery box reaches the upper limit value of the liquid level sensor, start the first air pump to pump the mixture into the caramel color recovery cylinder. When the liquid level in the caramel color recovery box drops to the lower limit value, stop the first air pump;

[0033] (4) Cleaning with clear water / reclaimed water circulation: After the conveyor belt of the packaging barrel restarts and transports the packaging barrel to the second cleaning station and touches the sensor, it stops. The clear water or reclaimed water is pressurized by the second centrifugal pump and sprayed out from the second rotating nozzle at the bottom of the conveyor belt to form a water column to clean the inner wall, bottom, and outer walls around the packaging barrel. The sewage generated by the cleaning will flow into the sewage recovery tank and be recycled;

[0034] (5) Dripping: After cleaning with clear water / reclaimed water, the conveyor belt of the packaging barrel runs to the dripping station. At this station, when the packaging barrel is in a static state, the sewage will naturally flow down into the sewage recovery trough. The sewage recovery trough is connected to the sewage recovery tank. When the sewage recovery trough is full, it overflows into the sewage recovery tank. When the sewage in the sewage recovery tank reaches a certain concentration, the second air pump is started to pump the sewage into the sewage treatment tank for centralized treatment. When the liquid level in the sewage recovery tank drops to the lower limit value of the liquid level sensor, the second air pump stops. The solenoid valve between the reclaimed water collection trough and the sewage recovery trough is opened to supplement the water levels of the sewage collection trough and the sewage recovery tank;

[0035] (6) Cleaning with clear water: After the conveyor belt of the packaging barrel restarts and transports the packaging barrel to the third cleaning station and touches the sensor, it stops. The clear water is pressurized by the third centrifugal pump and rinses the inner wall, bottom, and outer walls around the packaging barrel from the third rotating nozzle at the bottom of the conveyor belt of the packaging barrel. After multiple cleanings, the inner and outer walls of the packaging barrel are thoroughly cleaned; To ensure that there is enough clear water to be pressurized by the third centrifugal pump 3, a clear water buffer tank is set. When the clear water buffer tank drops to the lower limit value of the liquid level sensor, tap water is automatically replenished;

[0036] (7) Dripping: After cleaning with clear water, the conveyor belt of the packaging barrel runs to the dripping station. At this station, the reclaimed water generated when the packaging barrel is in a static state will naturally flow down into the reclaimed water collection trough and can be used as the cleaning liquid for the second cleaning station;

[0037] (8) Blowing: After the conveyor belt of the packaging barrel restarts, it transports the packaging barrel to the blowing station and stops after touching the sensor. The blower generates strong wind and blows from the bottom of the conveyor belt and around the packaging barrel through the air nozzles to dry the water droplets on the packaging barrel. After this station is completed, the conveyor belt of the packaging barrel transports the packaging barrel out of the equipment.

[0038] As described above, the present utility model can be better realized. The above embodiments are only the preferred embodiments of the present utility model and are not used to limit the scope of implementation of the present utility model; that is, all equivalent changes and modifications made according to the content of the present utility model are covered by the scope protected by the claims of the present utility model.

Claims

1. A caramel recovery device for a soy sauce production line, characterized in that, It includes a packaging barrel conveyor belt, a first cleaning device, a second cleaning device, a third cleaning device and a blowing device. Along the conveying direction of the packaging barrel, the packaging barrel conveyor belt is provided with a first cleaning section, a second cleaning section and a third cleaning section. The first cleaning section is correspondingly provided with a first cleaning device, the second cleaning section is correspondingly provided with a second cleaning device, and the third cleaning section is correspondingly provided with a third cleaning device and a blowing device; the cleaning liquid used by the first cleaning device is heated soy sauce, the cleaning liquid used by the second cleaning device is clean water or reused water, and the cleaning liquid used by the third cleaning device is clean water.

2. The caramel color recovery device for a soy sauce production line according to claim 1, characterized in that, In the first cleaning section, a caramel color recovery tank is provided below the packaging barrel conveyor belt, and an upper barrel station and a first cleaning station are sequentially provided above the packaging barrel conveyor belt.

3. The caramel recovery device for a soy sauce production line according to claim 2, wherein The first cleaning device includes a first centrifugal pump, a first rotary spray head, a caramel color recovery cylinder, a first air pump and a caramel color recovery tank. The caramel color recovery tank, the caramel color recovery tank and the caramel color recovery cylinder are sequentially connected through pipelines. A first air pump is provided between the caramel color recovery tank and the caramel color recovery cylinder. The caramel color recovery cylinder is also connected with a first rotary spray head through a pipeline. A first centrifugal pump is provided between the caramel color recovery cylinder and the first rotary spray head. The first rotary spray head is arranged at the first cleaning station, and the cleaning liquid sprayed by the first rotary spray head flows into the caramel color recovery tank after being cleaned.

4. The caramel recovery device for a soy sauce production line according to claim 3, characterized in that, There are two first cleaning stations, and the first rotary spray heads at each first cleaning station are arranged in parallel.

5. The caramel recovery device for a soy sauce production line according to claim 1, characterized in that, In the second cleaning section, a sewage recovery tank is provided below the packaging barrel conveyor belt, and a second cleaning station is provided above the packaging barrel conveyor belt.

6. The caramel color recycling device for a soy sauce production line according to claim 5, characterized in that The second cleaning device includes a second centrifugal pump, a second rotary spray head, a sewage recovery tank, a second air pump and a sewage treatment cylinder. The sewage recovery tank, the sewage recovery tank and the sewage treatment cylinder are sequentially connected through pipelines. A second air pump is provided between the sewage recovery tank and the sewage treatment cylinder. The sewage recovery tank is also connected with a second rotary spray head through a pipeline. A second centrifugal pump is provided between the sewage recovery tank and the second rotary spray head. The second rotary spray head is arranged at the second cleaning station, and the cleaning liquid sprayed by the second rotary spray head flows into the sewage recovery tank after being cleaned.

7. The caramel color recovery device for a soy sauce production line according to claim 5, characterized in that, In the third cleaning section, a water recovery collecting tank is provided below the packaging barrel conveyor belt. The water recovery collecting tank is communicated with the sewage recovery tank. An upper barrel station and a blowing station are sequentially provided above the packaging barrel conveyor belt.

8. The caramel recovery device for a soy sauce production line according to claim 7, wherein, The third cleaning device includes a third centrifugal pump, a third rotary spray head and a clean water buffer tank. The clean water buffer tank is connected with the third rotary spray head through a pipeline. A third centrifugal pump is provided between the clean water buffer tank and the third rotary spray head. The third rotary spray head is arranged at the third cleaning station, and the cleaning liquid sprayed by the third rotary spray head flows into the water recovery collecting tank after being cleaned.

9. The caramel recovery device for a soy sauce production line according to claim 7, characterized in that, The blowing device includes a blower and a nozzle. The blower is connected with the nozzle through a pipeline. The nozzle is arranged at the blowing station.

10. The caramel color recycling device for a soy sauce production line according to claim 1, characterized in that, The cleaning liquid used by the first cleaning device is soy sauce heated to 60 °C.

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