Unattended compounding system

Abstract

The utility model provides an unattended compounding system, and belongs to the technical field of additive production equipment. The unattended compounding system comprises a feeding system, a compounding system, a finished product system, an air compressor, a temperature sensor and a control system, the discharging end of the feeding system is communicated with the feeding end of the compounding system, the discharging end of the compounding system is communicated with the feeding end of the finished product system, and the air compressor is communicated with the air inlet end of the feeding system; the feeding system is used for quantitatively conveying materials to the compounding system according to an additive formula, the compounding system is used for producing finished products according to the materials, and the finished product system is used for storing the finished products; the temperature sensor is used for detecting external environment temperature; wherein the control system is electrically connected with the feeding system, the compounding system, the finished product system, the air compressor and the temperature sensor respectively. According to the unattended compounding system, intelligent compounding production of the admixture is realized, the compounding efficiency and the compounding precision of the admixture are improved, and the labor input cost is reduced.

Description

Technical Field

[0001] This disclosure relates to the field of admixture production equipment technology, and in particular to an unattended compounding system. Background Technology

[0002] Polycarboxylate concrete admixtures are mainly used in concrete. They are high-performance admixtures and cement dispersants used in cement concrete. They are widely used in projects such as highways, bridges, dams, tunnels, and high-rise buildings. Polycarboxylate concrete admixtures are non-flammable and non-explosive, and can be safely transported by train and truck, making them an indispensable additive in the construction industry.

[0003] Currently, the compounding and production of polycarboxylate-based concrete admixtures are automated. The admixtures are compounded in the production plant according to the formula provided by technicians. The admixtures are used in stages at commercial concrete production plants, with each batch potentially used for one or several days. The polycarboxylate admixture formula is designed based on the theoretical temperature of the current period. However, in actual use, the weather temperature varies greatly, with significant daily differences and potentially diurnal temperature variations of 10-20 degrees Celsius. Directly considering the external temperature factor in the production control of polycarboxylate admixture compounding is an important direction for polycarboxylate admixture compounding technology.

[0004] Domestic ready-mixed concrete manufacturers produce large quantities of polycarboxylate admixtures daily, resulting in significant daily usage. However, the long transportation distances for these admixtures make it impossible to adjust the production formula in real-time according to ambient temperature before delivery to customers. Therefore, on-site formulation at the customer's location is necessary to ensure timely adjustment of the production formula based on ambient temperature. Furthermore, each production run's polycarboxylate admixture formula, generated at the current ambient temperature, is calculated and adjusted using the technical department's baseline formula.

[0005] In existing technologies, the compounding equipment used on-site by concrete production enterprises mostly relies on manual input of formulas for compounding production. Manual calculation and input are too cumbersome, prone to errors, and have high labor costs, resulting in low efficiency of admixture compounding.

[0006] To address the above issues, an unattended remixing system was designed. Utility Model Content

[0007] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide an unattended compounding system to realize intelligent compounding production of admixtures, improve the compounding efficiency and accuracy of admixtures, and reduce labor input costs.

[0008] To achieve the aforementioned objectives of this utility model, the present disclosure adopts the following technical solution:

[0009] An unattended compounding system includes a feeding system, a compounding system, a finished product system, an air compressor, a temperature sensor, and a control system;

[0010] The discharge end of the feeding system is connected to the feed end of the compounding system, the discharge end of the compounding system is connected to the feed end of the finished product system, and the air compressor is connected to the air inlet of the feeding system.

[0011] The feeding system is used to quantitatively feed materials to the compounding system according to the direction of the admixtures; the compounding system is used to produce finished products based on the materials; and the finished product system is used to store the finished products.

[0012] The temperature sensor is used to detect the ambient temperature.

[0013] The control system is electrically connected to the feeding system, compounding system, finished product system, air compressor, and temperature sensor, respectively.

[0014] In one exemplary embodiment of this disclosure, the feeding system includes multiple feeding subsystems, each including a raw material tank and a pressure tank;

[0015] The discharge end of the raw material tank is connected to the inlet end of the pressing tank through a first feeding valve, and the discharge end of the pressing tank is connected to the inlet end of the compounding system through a second feeding valve and a conveying pipe.

[0016] The pressing tank is also equipped with an air inlet pipe and an air outlet pipe. The air inlet pipe is equipped with a feeding air inlet valve, and the air outlet pipe is equipped with a feeding air outlet valve. The pressing tank is connected to the air compressor through the air inlet pipe.

[0017] The control system is electrically connected to the first feeding valve, the second feeding valve, the feeding air inlet valve, and the feeding exhaust valve, respectively.

[0018] In one exemplary embodiment of this disclosure, a first level gauge is provided inside the raw material tank;

[0019] The first level gauge is electrically connected to the control system.

[0020] In an exemplary embodiment of this disclosure, the compounding system includes a compounding vessel and a vent pipe disposed on the compounding vessel. The vent pipe extends into the compounding vessel and communicates with an outlet pipe, and the outlet pipe has a plurality of outlet holes.

[0021] The ventilation pipe is equipped with a stirring and gas supply solenoid valve, and the compounding kettle is equipped with a liquid level switch.

[0022] The stirring and air supply solenoid valve and the liquid level switch are electrically connected to the control system.

[0023] In one exemplary embodiment of this disclosure, a weighing scale for weighing is provided at the bottom of the compounding vessel;

[0024] The feeding and metering scale is electrically connected to the control system.

[0025] In one exemplary embodiment of this disclosure, the discharge end of the compounding reactor is provided with a discharge valve, and the compounding reactor is connected to the finished product system through the discharge valve;

[0026] The discharge valve is electrically connected to the control system.

[0027] In one exemplary embodiment of this disclosure, the finished product system includes multiple finished product subsystems, and the finished product subsystem includes a finished product tank;

[0028] The finished product tank is equipped with a feeding pipe, and the finished product tank is connected to the discharge end of the compounding system through the feeding pipe. The feeding pipe is equipped with a feeding pneumatic valve.

[0029] The feed pneumatic valve is electrically connected to the control system.

[0030] In one exemplary embodiment of this disclosure, a limit switch and a second level gauge are also provided inside the finished product tank;

[0031] The limit switch and the second level gauge are electrically connected to the control system.

[0032] In one exemplary embodiment of this disclosure, the control system includes a touchscreen and a DCS system;

[0033] The DCS system is electrically connected to the feeding system, compounding system, finished product system, air compressor, temperature sensor and touch screen respectively.

[0034] In one exemplary embodiment of this disclosure, a pressure detection switch is further included, which is used to detect the pressure of the air compressor;

[0035] The air pressure detection switch is electrically connected to the control system.

[0036] The beneficial effects of this disclosure are:

[0037] This disclosure provides an unattended compounding system that uses a temperature sensor to collect the ambient temperature at the construction site in real time. This allows for real-time adjustment of the single-batch production formula based on the ambient temperature at the client site, achieving fully automated compounding of admixtures. This results in high material metering accuracy, improved stability of admixture products, and better suitability of admixtures for concrete construction performance. Simultaneously, it reduces energy consumption in the admixture production process, achieving energy conservation and emission reduction. Furthermore, it improves admixture compounding efficiency and accuracy, avoids human error, and reduces labor costs. Attached Figure Description

[0038] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0039] Figure 1 This is a schematic diagram of the structure of an unattended compounding system in one embodiment of the present disclosure.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Feeding system; 2. Compounding system; 3. Finished product system; 4. Air compressor; 5. Temperature sensor; 6. Control system; 7. Raw material tank; 8. Pressurized tank; 9. First feeding valve; 10. Second feeding valve; 11. Conveying pipe; 12. Feeding air inlet valve; 13. Feeding exhaust valve; 14. First level gauge; 15. Compounding kettle; 16. Stirring and air supply solenoid valve; 17. Level switch; 18. Feeding weighing scale; 19. Discharge valve; 20. Finished product tank; 21. Feeding pneumatic valve; 22. Limit switch; 23. Second level gauge; 24. Touch screen; 25. DCS system; 26. Air pressure detection switch. Detailed Implementation

[0042] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0043] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0044] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0045] This disclosure provides an unattended compounding system; see [link to relevant documentation]. Figure 1 The system includes a feeding system 1, a compounding system 2, a finished product system 3, an air compressor 4, a temperature sensor 5, and a control system 6. The discharge end of the feeding system 1 is connected to the feed end of the compounding system 2, the discharge end of the compounding system 2 is connected to the feed end of the finished product system 3, and the air compressor 4 is connected to the air inlet of the feeding system 1. The feeding system 1 is used to quantitatively feed materials to the compounding system 2 according to the direction of the additives. The compounding system 2 is used to produce finished products according to the materials. The finished product system 3 is used to store the finished products. The temperature sensor 5 is used to detect the ambient temperature. The control system 6 is electrically connected to the feeding system 1, the compounding system 2, the finished product system 3, the air compressor 4, and the temperature sensor 5.

[0046] In this embodiment, the unattended compounding system comprises a feeding system 1, a compounding system 2, a finished product system 3, an air compressor 4, a temperature sensor 5, and a control system 6. The control system 6 is electrically connected to the feeding system 1, the compounding system 2, the finished product system 3, the air compressor 4, and the temperature sensor 5. The feeding system 1, the compounding system 2, and the finished product system 3 are connected sequentially. The air compressor 4 is connected to the air inlet of the feeding system 1. The temperature sensor 5 detects the ambient temperature. Based on the data detected by the temperature sensor 5 and the built-in basic additive formula, the control system 6 generates the current additive production formula. The control system 6 starts the feeding system 1 and the air compressor 4 to quantitatively deliver materials into the compounding system 2 according to the generated formula. The control system 6 starts the compounding system 2 to mix the materials and generate the finished additive material. The control system 6 starts the finished product system 3, and the compounding system 2 delivers the finished additive material to the finished product system 3 for storage.

[0047] Compared to existing compounding devices, this unattended compounding system uses temperature sensors to collect real-time ambient temperature data at the construction site. This allows for real-time adjustment of the single-batch production formula based on the ambient temperature at the client site, achieving fully automated compounding production of admixtures. It also ensures high material metering accuracy, improves the stability of admixture products, and makes admixtures more suitable for concrete construction performance requirements. Furthermore, it reduces energy consumption in the admixture production process, achieving energy conservation and emission reduction. Finally, it improves admixture compounding efficiency and accuracy, avoids human error, and reduces labor costs.

[0048] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 The feeding system 1 includes multiple feeding subsystems, including a raw material tank 7 and a pressing tank 8. The discharge end of the raw material tank 7 and the feed end of the pressing tank 8 are connected by a first feeding valve 9, and the discharge end of the pressing tank 8 and the feed end of the compounding system 2 are connected by a second feeding valve 10 and a conveying pipe 11. The pressing tank 8 is also equipped with an air inlet pipe and an air outlet pipe. The air inlet pipe is equipped with a feeding air inlet valve 12, and the air outlet pipe is equipped with a feeding air outlet valve 13. The pressing tank 8 is connected to an air compressor 4 through the air inlet pipe. The control system 6 is electrically connected to the first feeding valve 9, the second feeding valve 10, the feeding air inlet valve 12, and the feeding air outlet valve 13, respectively. In this way, different types of materials can be precisely and quantitatively delivered to the compounding system 2 according to the admixture production formula, realizing the high-efficiency and intelligent production of admixtures.

[0049] In one example, there are three feeding subsystems: a first feeding subsystem, a second feeding subsystem, and a third feeding subsystem. The first feeding subsystem is used to feed material A, the second feeding subsystem is used to feed material B, and the third feeding subsystem is used to feed material C.

[0050] Understandably, multiple feed subsystems are used to transport different types of raw materials. For example, the first feed subsystem is used to transport slump retainers, the second feed subsystem is used to transport retarder, and the third feed subsystem is used to transport water.

[0051] Understandably, the number of feeding subsystems in feeding system 1 can be flexibly adjusted according to different admixture production formulas. That is, the number of feeding subsystems in feeding system 1 is not limited to three. Feeding system 1 can include only two feeding subsystems or more than three feeding subsystems.

[0052] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 A first level gauge 14 is installed inside the raw material tank 7; the first level gauge 14 is electrically connected to the control system 6. In this way, the material quantity in the raw material tank 7 can be monitored in real time, facilitating timely replenishment of material into the raw material tank 7 and improving the production efficiency of the additive.

[0053] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 The compounding system 2 includes a compounding vessel 15 and a vent pipe installed on the compounding vessel 15. The vent pipe extends into the compounding vessel 15 and is connected to an outlet pipe, which has multiple outlet holes. A stirring and gas-feeding solenoid valve 16 is installed on the vent pipe, and the stirring and gas-feeding solenoid valve 16 is electrically connected to the control system 6. In this way, the materials in the compounding vessel 15 can be fully mixed, improving the compounding effect of the additives.

[0054] Optionally, the compounding vessel 15 is equipped with an exhaust valve to discharge the gas inside the compounding vessel 15.

[0055] Optionally, the ventilation duct is connected to the air compressor 4 to supply air into the compounding vessel 15.

[0056] Optionally, see Figure 1 A level switch 17 is installed inside the mixing vessel 15, and the level switch 17 is electrically connected to the control system 6. In this way, the liquid level in the mixing vessel 15 can be monitored in real time, and the stirring and gas supply solenoid valve 16 can be started or stopped when the liquid level changes, so as to mix the materials in the mixing vessel 15.

[0057] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 The bottom of the compounding reactor 15 is equipped with a weighing scale 18 for weighing materials; the weighing scale 18 is electrically connected to the control system 6. This allows for real-time monitoring of the quality of materials entering the compounding reactor 15, improving the accuracy of material conveying and enhancing the stability of the additive products.

[0058] Optionally, the feeding and metering scale 18 is a high-precision material metering scale.

[0059] It should be noted that the accuracy of the high-precision feeding scale 18 can be adjusted according to different admixture production formulas. For example, the accuracy of the feeding scale 18 in one admixture production formula is 0.1 kg, while the accuracy of the feeding scale 18 in another admixture production formula is 0.05 kg.

[0060] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 The compounding reactor 15 is equipped with a discharge valve 19 at its discharge end, and the compounding reactor 15 is connected to the finished product system 3 through the discharge valve 19; the discharge valve 19 is electrically connected to the control system 6. In this way, the compounded additives can be transported to the finished product system 3 for storage.

[0061] In another embodiment of this disclosure, the compounding system 2 includes a compounding vessel 15 and a mounting frame disposed at the top of the compounding vessel 15. A drive motor is mounted on the mounting frame, with the output end of the drive motor facing downwards. A rotating shaft is rotatably disposed inside the compounding vessel 15, and a stirring blade is disposed on the rotating shaft. The top end of the rotating shaft extends out of the compounding vessel 15 and is connected to the output end of the drive motor. The drive motor drives the rotating shaft and the stirring blade on it to rotate. In this way, the materials in the compounding vessel 15 can be stirred and mixed to achieve the compounding of additives.

[0062] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 The finished product system 3 includes multiple finished product subsystems, including a finished product tank 20. The finished product tank 20 is equipped with a feed pipe, which connects to the discharge end of the compounding system 2. A feed pneumatic valve 21 is installed on the feed pipe, and this valve is electrically connected to the control system 6. This allows the finished materials produced by the compounding system 2 to be transported to the finished product tank 20 for storage.

[0063] Optionally, the finished product tank 20 is connected to the discharge valve 19 via a feed pipe.

[0064] Optionally, the finished product tank 20 is equipped with a discharge pipe connected to the concrete mixing tank, and a water pump is installed on the discharge pipe. In this way, admixtures can be added during the concrete production process.

[0065] Understandably, the number of finished product subsystems in finished product system 3 can be flexibly adjusted according to different admixture production formulas. That is, the number of finished product subsystems in finished product system 3 is not limited to two. Finished product system 3 can include only one finished product subsystem or more than two finished product subsystems.

[0066] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 The finished product tank 20 is also equipped with a limit switch 22 and a second level gauge 23; the limit switch 22 and the second level gauge 23 are electrically connected to the control system 6. In this way, the added dosage in the finished product tank 20 can be monitored in real time to determine whether to start the next compounding production.

[0067] Optionally, both the first level gauge 14 and the second level gauge 23 are high-precision level gauges.

[0068] It should be noted that the accuracy of the high-precision first level gauge 14 and the second level gauge 23 can be adjusted according to the actual situation. The accuracy of the first level gauge 14 and the second level gauge 23 can be the same or different.

[0069] In one example, the first level gauge 14 has an accuracy of 1 mm, and the second level gauge 23 has an accuracy of 1 mm.

[0070] In another example, the first level gauge 14 has an accuracy of 0.1 mm, and the second level gauge 23 has an accuracy of 1 mm.

[0071] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 The control system 6 includes a touch screen 24 and a DCS system 25; the DCS system 25 is electrically connected to the feeding system 1, the compounding system 2, the finished product system 3, the air compressor 4, the temperature sensor 5, and the touch screen 24. This enables intelligent control of the compounding system, achieving unmanned and intelligent compounding production of additives.

[0072] Optionally, the DCS system 25 is a distributed control system.

[0073] Understandably, the touchscreen 24 is used by staff to operate the compounding system and view its operating status.

[0074] Optionally, the control system 6 also includes a wireless communication module electrically connected to the DCS system 25. This allows for real-time transmission of the compounding system's operational data to a remote monitoring platform, facilitating remote status monitoring and fault diagnosis by operators.

[0075] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 It also includes a pressure detection switch 26, which is used to detect the pressure of the air compressor 4; the pressure detection switch 26 is electrically connected to the control system 6. In this way, the pressure of the air compressor 4 can be monitored in real time to determine whether the pressure of the air compressor 4 has reached the set value, so as to determine whether compounding production can be carried out.

[0076] In one embodiment of this disclosure, see Figure 1 The working process of this unattended compounding system is briefly described as follows:

[0077] When this disclosure is in use, the compounding system is in an unattended state. The DCS system 25 acquires the ambient temperature value detected by the temperature sensor 5. Based on this temperature value and the built-in admixture basic formula, the DCS system 25 generates the admixture production formula for this batch.

[0078] The compounding system determines the start of production based on the air pressure of the air compressor 4 and the amount of additives in the finished product tank 20; the DCS system 25 starts the air compressor 4, and when the air pressure detection switch 26 detects that the air pressure of the air compressor 4 meets the set value, it prepares to start the additive compounding production; when the second level gauge 23 detects that the additive liquid level in the finished product tank 20 is less than or equal to the start setting value, the compounding system starts production.

[0079] The DCS system 25 opens the first feeding valve 9 and the feeding exhaust valve 13, making the air pressure inside the pressure tank 8 lower than the external atmospheric pressure. This allows the material from the raw material tank 7 to enter the pressure tank 8 through the first feeding valve 9. Different types of materials are loaded into multiple pressure tanks 8. After the pressure tank 8 is full, the first feeding valve 9 and the feeding exhaust valve 13 are closed after a 20-second delay. The DCS system 25 then opens the second feeding valve 10 and the feeding air inlet valve 12. The air compressor 4 introduces compressed air into the pressure tank 8 through the feeding air inlet valve 12, allowing the materials in the multiple pressure tanks 8 to be transported to the compounding kettle 15 through the conveying pipe 11 according to the production formula ratio and sequence. The level switch 17 and the feeding metering scale 18 monitor the amount of material entering the compounding kettle 15. The level switch 17 and the feeding metering scale 18 monitor the amount of material entering the compounding kettle 15. After the feeding and metering scale 17 detects that the input amount of each material has reached the required quantity of the production formula, the DCS system 25 closes the second feeding valve 10 and the feeding air inlet valve 12, and the feeding is completed; the DCS system 25 opens the stirring air supply solenoid valve 16 to introduce gas into the compounding kettle 15 to mix and stir the materials in the compounding kettle 15. When the mixing time reaches the set time of the production formula, the DCS system 25 closes the stirring air supply solenoid valve 16, and the additive compounding is completed; the DCS system 25 opens the discharge valve 19 and the feed pneumatic valve 21 to transport the compounded finished material in the compounding kettle 15 to the finished product tank 20. When the finished material in the compounding kettle 15 has been transported out, the DCS system 25 closes the discharge valve 19 and the feed pneumatic valve 21, and the compounding is completed for this time;

[0080] When the second level gauge 23 detects that the level of the additive in the finished product tank 20 is less than or equal to the set value for starting compounding production, the DCS system 25 acquires the current ambient temperature value detected by the temperature sensor 5 again, and generates the next additive production formula based on this temperature value and the built-in additive basic formula, and repeats the next round of additive compounding production.

[0081] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. An unattended compounding system, characterized by, It comprises a feeding system (1), a compounding system (2), a finished product system (3), an air compressor (4), a temperature sensor (5) and a control system (6); The discharge end of the feeding system (1) is communicated with the feeding end of the compounding system (2), the discharge end of the compounding system (2) is communicated with the feeding end of the finished product system (3), and the air compressor (4) is communicated with the air inlet end of the feeding system (1); The feeding system (1) is used for quantitatively conveying materials to the compounding system (2) according to the additive arrangement direction, the compounding system (2) is used for producing finished product materials according to the materials, and the finished product system (3) is used for storing the finished product materials; The temperature sensor (5) is used for detecting the ambient temperature; The control system (6) is electrically connected with the feeding system (1), the compounding system (2), the finished product system (3), the air compressor (4) and the temperature sensor (5) respectively.

2. The unattended compounding system of claim 1, wherein, The feeding system (1) comprises a plurality of feeding subsystems, and the feeding subsystems comprise raw material tanks (7) and material pressing tanks (8); The discharge end of the raw material tank (7) is communicated with the feeding end of the material pressing tank (8) through a first feeding valve (9), and the discharge end of the material pressing tank (8) is communicated with the feeding end of the compounding system (2) through a second feeding valve (10) and a material conveying pipe (11); The material pressing tank (8) is further provided with an air inlet pipe and an air exhaust pipe, the air inlet pipe is provided with a feeding air inlet valve (12), the air exhaust pipe is provided with a feeding air exhaust valve (13), and the material pressing tank (8) is connected with the air compressor (4) through the air inlet pipe; The control system (6) is electrically connected with the first feeding valve (9), the second feeding valve (10), the feeding air inlet valve (12) and the feeding air exhaust valve (13) respectively.

3. The unattended compounding system of claim 2, wherein, A first liquid level meter (14) is arranged in the raw material tank (7); The first liquid level meter (14) is electrically connected with the control system (6).

4. The unattended compounding system of claim 1, wherein, The compounding system (2) comprises a compounding kettle (15) and an air pipe arranged on the compounding kettle (15), the air pipe extends into the compounding kettle (15) and is communicated with an air outlet pipe, and a plurality of air outlet holes are formed in the air outlet pipe; The air pipe is provided with a stirring and air supply electromagnetic valve (16), and the compounding kettle (15) is provided with a liquid level switch (17); The stirring and air supply electromagnetic valve (16) and the liquid level switch (17) are electrically connected with the control system (6) respectively.

5. The unattended compounding system of claim 4, wherein, A feeding metering scale (18) for weighing is arranged at the bottom end of the compounding kettle (15); The feeding metering scale (18) is electrically connected with the control system (6).

6. The unattended compounding system of claim 4, wherein, A discharge valve (19) is arranged at the discharge end of the compounding kettle (15), and the compounding kettle (15) is communicated with the finished product system (3) through the discharge valve (19); The discharge valve (19) is electrically connected with the control system (6).

7. The unattended compounding system of claim 1, wherein, The finished product system (3) comprises a plurality of finished product subsystems, and the finished product subsystems comprise finished product tanks (20). The finished product tank (20) is provided with a feeding pipeline, the finished product tank (20) is communicated with the discharge end of the compounding system (2) through the feeding pipeline, and a feeding pneumatic valve (21) is arranged on the feeding pipeline; The feeding pneumatic valve (21) is electrically connected with the control system (6).

8. The unattended compounding system of claim 7, wherein, The finished product tank (20) is further provided with a limit switch (22) and a second liquid level meter (23); The limit switch (22) and the second liquid level meter (23) are electrically connected with the control system (6) respectively.

9. The unattended compounding system of claim 1, wherein, The control system (6) comprises a touch screen (24) and a DCS system (25); The DCS system (25) is electrically connected with the feeding system (1), the compounding system (2), the finished product system (3), the air compressor (4), the temperature sensor (5) and the touch screen (24) respectively.

10. The unattended compounding system of claim 1, wherein, Further comprising an air pressure detection switch (26), the air pressure detection switch (26) is used for detecting the air pressure of the air compressor (4); The air pressure detection switch (26) is electrically connected with the control system (6).

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