Intelligent stirring and sealing charging basket capable of preventing leakage and removing residues

Abstract

The invention relates to an anti-drip residue-removing intelligent stirring sealed charging basket which comprises a metal shell, a rotating door is arranged at the top of the metal shell, and a storage barrel and a recycling barrel are arranged in the metal shell; an ultrasonic sensor is arranged at the top of the revolving door; a first motor used for controlling the rotating door is arranged on the inner wall of the metal shell. A second motor is arranged below the storage barrel, and a stirrer is arranged in the storage barrel; the storage barrel is further provided with liquid level sensors corresponding to different liquid level positions; the recycling barrel is connected with a negative pressure pump above the recycling barrel through a recycled material discharging pipe, and the negative pressure pump is connected with the recycling channel. The invention has the following beneficial effects: through the dynamic self-adaptive sealing interface, the material injection valve and the material storage barrel are tightly attached, the sealing performance is obviously improved, and liquid volatilization or dripping leakage is avoided; after material injection is finished, residual liquid at the discharge port of the material injection valve is automatically adsorbed to a recycling barrel, the problem of leakage caused by easy abrasion of a traditional mechanical seal is effectively solved, and waste of raw materials is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of drums, and more precisely, it relates to an intelligent stirring and sealing drum with anti-drip and residue removal functions. Background Art

[0002] The control method for stirring and mixing materials in drums is widely used in the field of drum batching. Nowadays, the traditional injection valve used for material injection relies on mechanical seals. When closed, liquid dripping occurs due to inertia or wear of the sealing ring, and the residue amount is relatively high. The dripping pollutes the environment, and when corrosive liquid drips onto the workbench, it will also damage the equipment. The residue needs to be manually cleaned, resulting in low efficiency and high raw material waste rate.

[0003] In addition, when the mechanical stirring device operates, heat is generated by friction, and the cooling function is relatively lacking. When the temperature of the drum rises to 30 - 40°C, the volatilization of low-boiling-point liquids is accelerated. The drum basically does not have a sealing function, and after the temperature inside the drum rises, the liquid is prone to volatilization, further increasing the raw material waste rate. If the liquid is somewhat toxic, the volatilized liquid in the air makes the working environment very dangerous. Therefore, the liquid injection, stirring, and recycling processes are independently operated, with low automation and low overall efficiency. Summary of the Invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art and propose an intelligent stirring and sealing drum with anti-drip and residue removal functions.

[0005] In a first aspect, there is provided an intelligent stirring and sealing drum with anti-drip and residue removal functions, including: A metal outer shell, on the top of which there is a rotating door, and inside which there is a storage drum and a recycling drum; Among them, on the top of the rotating door there is an ultrasonic sensor; on the inner wall of the metal outer shell there is a first motor for controlling the rotating door; below the storage drum there is a second motor, and inside the storage drum there is a stirring element controlled by the second motor; the storage drum is also provided with liquid level sensors corresponding to different liquid level positions; the recycling drum is connected to a negative pressure pump above through a recycling material discharge pipe, and the negative pressure pump is connected to a recycling channel.

[0006] Preferably, the docking port of the storage drum is a vortex-shaped groove made of polytetrafluoroethylene material. The vortex-shaped groove is composed of several wedge blocks, and each wedge block is connected to a corresponding return spring. When the return spring is in an extended state, the vortex-shaped groove is sealed.

[0007] Preferably, on the side wall of the storage drum there are a cleaning liquid injection port and an air inlet; the air inlet is connected to a one-way valve and an air compressor through an air pipe.

[0008] Preferably, a liquid level observation slit is provided on the side wall of the storage barrel. The liquid level observation slit is equal in height to the storage barrel and is used to observe the liquid level height in the storage barrel. A first liquid level sensor and a second liquid level sensor are installed outside the liquid level observation slit. The liquid level position corresponding to the first liquid level sensor is lower than the liquid level position corresponding to the second liquid level sensor.

[0009] Preferably, a temperature control system is provided inside the storage barrel. The temperature control system is composed of a refrigeration plate and a heating plate. The refrigeration plate and the heating plate are integrated on the inclined wall at the bottom of the storage barrel and are distributed in a ring shape to change the temperature inside the storage barrel.

[0010] Preferably, a bracket is provided below the storage barrel. The bracket is used to place a one-way valve, an air compressor, and a PLC.

[0011] Second, a working method of the intelligent stirring and sealing storage barrel as described in the first aspect is provided, including: S1. Detect the approaching signal of the injection valve through an ultrasonic sensor, transmit the approaching signal of the injection valve to the PLC, and control the first motor to start through the PLC to open the rotating door. S2. After the injection valve is docked with the docking port of the storage barrel, start injecting materials. When the liquid level reaches the position corresponding to the first liquid level sensor, control the second motor to start through the PLC to drive the stirring element to rotate, so that the liquid in the storage barrel is evenly mixed. S3. When the liquid level reaches the position corresponding to the second liquid level sensor, control the second motor to close through the PLC; and close the injection valve to separate the injection valve from the storage barrel. S4. The injection valve moves above the recovery barrel and is docked with the recovery channel; control the negative pressure pump to start through the PLC to recover the raw materials remaining at the discharge port of the injection valve to the recovery barrel.

[0012] Preferably, in S2, it further includes: Start the temperature control system to perform refrigeration treatment on the storage barrel.

[0013] Preferably, it further includes: S5. Separate the injection valve from the recovery channel, and control the first motor to close the rotating door through the PLC; S6. Control the air compressor to start through the PLC, and inject gas into the storage barrel through the one-way valve, and the liquid in the storage barrel is discharged from the discharge port of the storage barrel. S7. The cleaning liquid enters the storage barrel through the cleaning liquid injection port. When the liquid level reaches the position corresponding to the first liquid level sensor 308, control the second motor to start through the PLC to drive the stirring element to rotate; S8. Repeat S6 to discharge the cleaning liquid in the storage barrel.

[0014] Preferably, it further includes: S9. Start the temperature control system to heat and dry the storage bucket.

[0015] The beneficial effects of the present invention are as follows: 1. Through the dynamic adaptive sealing interface (the groove made of polytetrafluoroethylene material and the reset spring structure), the present invention realizes the tight fit between the injection valve and the storage bucket, significantly improves the sealing performance, and avoids liquid volatilization or dripping. Combined with the negative pressure recovery system, after the injection is completed, the residual liquid at the outlet of the injection valve is automatically adsorbed into the recovery bucket, effectively solving the dripping problem caused by the easy wear of the traditional mechanical seal and reducing raw material waste.

[0016] 2. The present invention provides a temperature control system integrating refrigeration and heating modules, and the temperature of the storage bucket is regulated in real time through the PLC: the refrigeration mode can inhibit the liquid volatilization caused by frictional heat generation during the stirring process and maintain a low-temperature environment; the heating mode cooperates with the cleaning process to quickly dry the storage bucket and avoid the residue of the cleaning liquid. Description of the Drawings

[0017] Figure 1 It is the sectional assembly drawing of the overall device provided by the present invention; Figure 2 It is the three-dimensional schematic diagram of the overall device provided by the present invention; Figure 3 It is the schematic diagram of the recovery device provided by the present invention; Figure 4 It is the sectional view of the storage bucket provided by the present invention; Figure 5 It is the system working flow chart provided by the present invention; Description of the reference numerals in the drawings: metal shell 1, rotating door 2, storage bucket 3, wedge block 301, reset spring 302, cleaning liquid injection port 303, air inlet 304, air pipe 305, liquid level observation slit 306, storage bucket discharge port 307, first liquid level sensor 308, second liquid level sensor 309, stirring bar 310, temperature control system 311, recovery bucket 4, first motor 5, second motor 6, recovered material discharge pipe 7, negative pressure pump 8, recovery channel 9, check valve 10, air compressor 11, PLC 12, bracket 13, external discharge port 14. Detailed Embodiments

[0018] The following further describes the present invention in conjunction with embodiments. The description of the following embodiments is only for helping to understand the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0019] Embodiment 1: As an embodiment, the present invention provides an intelligent stirring sealed material bucket with anti-dripping and residue removal, asFigure 1 As shown in the figure, it includes: A metal shell 1, on the top of the metal shell 1 there is a rotating door 2, as Figure 2 shown, the rotating door 2 can be circular and can achieve planar rotation. Inside the metal shell 1 there are a storage bucket 3 and a recycling bucket 4.

[0020] Among them, on the top of the rotating door there is an ultrasonic sensor, which can detect the distance between the injection valve and the rotating door 2 in real time; on the inner wall of the metal shell 1 there is a first motor 5, which provides power for the rotating door 2 to achieve its planar rotation; below the storage bucket 3 there is a second motor 6, inside the storage bucket 3 there is a stirrer 310, the stirrer 310 is specifically installed on the inclined wall at the bottom inside the storage bucket 3, the stirrer 310 is controlled by the second motor 6, the second motor 6 is a high-power motor, located outside the storage bucket 3, and drives the stirrer 310 to rotate. The high-speed rotation of the second motor 6 can form a penetrating vortex inside the storage bucket 3, so that the liquid inside the storage bucket 3 can be fully mixed. The storage bucket 3 is also provided with liquid level sensors corresponding to different liquid level positions; as Figure 3 shown, the recycling bucket 4 is connected to the negative pressure pump 8 (vacuum degree ≥ 0.08 MPa) above through a recycling material discharge pipe 7, and the negative pressure pump 8 is connected to a recycling channel 9, which is used to provide a negative pressure environment.

[0021] Specifically, as Figure 4 shown, the docking port of the storage bucket 3 is a vortex-shaped groove made of polytetrafluoroethylene (PTFE), the vortex-shaped groove is composed of several wedge blocks 301 (such as composed of six wedge blocks), each wedge block 301 is connected to a corresponding return spring 302, when the return spring 302 is in the extended state, the vortex-shaped groove is sealed. When the return spring 302 is under pressure, it compresses, the groove opens, and the pressure of the return spring 302 makes the groove fit tightly with the discharge port, realizing dynamic adaptive sealing. The groove automatically fits with the discharge port under pressure, and the inverted conical groove matches the injection port of the conical injection valve, further ensuring the sealing performance at the interface. At the same time, the PTFE material groove greatly reduces the friction between it and the injection valve, ensures the smoothness of the docking process, and at the same time ensures the sealing performance of their contact, can effectively avoid the volatilization of raw materials due to insufficient sealing during the injection process, improves the safety of the injection process, and reduces the waste of raw materials.

[0022] A cleaning liquid injection port 303 and an air inlet 304 are provided on the side wall of the storage barrel 3, and the air inlet 304 is located directly above the cleaning liquid injection port 303; the air inlet 304 is connected to a one-way valve 10 and an air compressor 11 through an air pipe 305. In addition, straight-through quick connectors are provided at the cleaning liquid injection port 303 and the air inlet 304, one end is connected to the storage barrel 3, and the other end is connected to the air pipe 305. The other end of the air inlet pipe is connected to the one-way valve 10 and the air compressor 11. The compressed gas from the air compressor 11 enters the storage barrel 3, which can make the liquid in the storage barrel 3 flow out quickly, increasing the speed during liquid discharge, and at the same time reducing the residue of the liquid in the storage barrel 3. The other end of the cleaning liquid injection port 303 is connected to the metal shell 1, and cleaning liquid can be injected from the outside, cooperating with the stirring device to quickly clean the device. The temperature control system 311 at the bottom of the storage barrel 3 can heat and dry the storage barrel after cleaning to prepare for the next injection and mixing of materials.

[0023] A liquid level observation slit 306 is provided on the side wall of the storage barrel 3. The liquid level observation slit 306 is about 1 cm wide and equal to the height of the storage barrel 3, and is composed of a transparent material for observing the liquid level height in the storage barrel; a first liquid level sensor 308 and a second liquid level sensor 309 are installed outside the liquid level observation slit 306; the liquid level position corresponding to the first liquid level sensor 308 is lower than the liquid level position corresponding to the second liquid level sensor 309. For example, the first liquid level sensor 308 is installed at the 1 / 4 liquid level, and the second liquid level sensor 309 is installed at the 3 / 4 liquid level, which can collect the liquid level height data in real time and feed the data back to the PLC 12, thereby controlling the switch of the second motor 6 and the switch of the temperature control system 311.

[0024] A temperature control system 311 is provided inside the storage barrel 3. The temperature control system 311 is composed of a refrigeration plate (i.e., a refrigeration system) and a heating plate (i.e., a heating device). The refrigeration plate and the heating plate are integrated on the inclined wall at the bottom of the storage barrel 3 and are distributed in a ring shape for changing the temperature inside the storage barrel 3.

[0025] A bracket 13 is provided below the storage barrel 3. The bracket 13 is made of metal and is used to place the one-way valve 10, the air compressor 11 and the PLC 12. The PLC can realize motor speed control and temperature control. In addition, a base is also included, and the base is located below the storage barrel 3 and the recycling barrel 4. The metal shell 1 can form a basically sealed space, which can reduce the influence of external factors on the injection and mixing process.

[0026] A storage barrel discharge port 307 is provided at the bottom of the storage barrel 3, and an external discharge port 14 is provided on the side wall of the metal shell 1. A switch is provided at the external discharge port 14, and there is a connection relationship between the storage barrel discharge port 307 and the external discharge port 14. After the switch at the external discharge port 14 is opened, the liquid in the storage barrel 3 can be discharged to the outside through the storage barrel discharge port 307 and the external discharge port 14.

[0027] In addition, the recycling channel 9 is provided with small holes, the size of which is the same as that of the discharge port of the injection valve. The injection valve can move freely, so as to realize the combination and separation of the injection valve and the small holes. When the injection valve is inserted into the small hole, the discharge port of the injection valve is exactly located inside the recycling channel 9. After each injection, the injection valve is inserted into the small hole, and the negative pressure pump 8 (vacuum degree ≥ 0.08 MPa) is started. Air is inhaled from the discharge port through the recycling channel 9 into the negative pressure pump 8, forming a low-pressure area inside the recycling channel 9. The possible residual liquid at the discharge port of the injection valve is directly inhaled into the recycling bucket 4 through the recycling channel 9 by the atmospheric pressure, realizing the collection of waste liquid, ensuring that the residual liquid at the discharge port of the injection valve will not drip onto the workbench or volatilize into the air, preventing the corrosive raw materials from dripping to damage the equipment and the human body from inhaling the toxic gas volatilized into the air, and effectively avoiding the waste of raw materials at the same time.

[0028] The present invention integrates multiple links of injection and mixing into one, and the whole process is automatically controlled by a PLC, with high automation degree, good safety performance and high efficiency. It effectively reduces the pollution and waste caused by the volatilization and mixing of raw materials in the industrial injection and batching process, and can be applied to many high-precision and high-efficiency injection and batching scenarios such as industrial production.

[0029] Embodiment 2: On the basis of Embodiment 1, Embodiment 2 of the present invention provides a working method for an intelligent stirring and sealing material bucket, including: S1. Detect the approaching signal of the injection valve through an ultrasonic sensor, transmit the approaching signal of the injection valve to the PLC 12, and control the first motor 5 to start through the PLC 12 to open the rotating door 2.

[0030] In S1, the ultrasonic sensor can detect the distance between the injection valve and the rotating door in real time and transmit the information to the PLC 12, and the PLC 12 controls the rotation of the first motor 5, thereby controlling the opening and closing of the rotating door 2.

[0031] S2. After the injection valve is docked with the docking port of the storage bucket 3, start the injection; when the liquid level reaches the position corresponding to the first liquid level sensor 308, control the second motor 6 to start through the PLC 12 to drive the stirring element 310 to rotate, so as to uniformly mix the liquid in the storage bucket 3.

[0032] In S2, after the discharge port is inserted into the groove of the docking port, the discharge port is opened, and the liquid is injected into the storage bucket 3. The liquid level sensor collects the liquid level height data in real time and feeds it back to the PLC 12. When the liquid level height reaches the first liquid level sensor 308, the PLC 12 obtains the feedback data, and the second motor 6 starts, driving the stirring element 310 to rotate at a high speed, generating a vortex in the storage bucket 3, so as to uniformly mix the liquid in the storage bucket 3.

[0033] S3. When the liquid level reaches the position corresponding to the second liquid level sensor 309, control the second motor 6 to close through the PLC 12; and close the feeding valve to separate the feeding valve from the storage barrel 3.

[0034] S4. Move the feeding valve above the recovery barrel 4 and dock it with the recovery channel 9; control the negative pressure pump 8 to start through the PLC 12 to recover the raw materials remaining at the discharge port of the feeding valve to the recovery barrel 4.

[0035] It should be noted that the method provided in this embodiment is the method corresponding to the system provided in Embodiment 1. Therefore, for the parts that are the same or similar in this embodiment and Embodiment 1, they can be referred to each other and will not be elaborated in this application.

[0036] Embodiment 3: Based on Embodiment 2, Embodiment 3 of the present invention provides a more specific working method for the intelligent stirring and sealing barrel, as Figure 5 shown, including: S1. Detect the approaching signal of the feeding valve through the ultrasonic sensor, transmit the approaching signal of the feeding valve to the PLC 12, and control the first motor 5 to start through the PLC 12 to open the rotating door 2.

[0037] S2. Start feeding after the feeding valve is docked with the docking port of the storage barrel 3; when the liquid level reaches the position corresponding to the first liquid level sensor 308, control the second motor 6 to start through the PLC 12 to drive the stirring element 310 to rotate, so as to uniformly mix the liquid in the storage barrel 3.

[0038] In S2, it further includes: Start the temperature control system 311 to perform refrigeration treatment on the storage barrel 3, which can reduce the temperature inside the storage barrel 3, keep the internal temperature of the storage barrel 3 in a normal state, and prevent the raw materials from volatilizing due to high temperature.

[0039] S3. When the liquid level reaches the position corresponding to the second liquid level sensor 309, control the second motor 6 to close through the PLC 12; and close the feeding valve to separate the feeding valve from the storage barrel 3.

[0040] In S3, when the liquid level height reaches the second liquid level sensor 309, the PLC 12 obtains the feedback data, the second motor 6 closes, the refrigeration system then closes, the feeding valve stops feeding and lifts, and the discharge port of the feeding valve separates from the spiral docking groove. The PLC 12 accurately controls the opening and closing of the refrigeration system, ensuring the low-temperature environment inside the storage barrel 3 while saving energy consumption.

[0041] S4. Move the feeding valve above the recovery barrel 4 and dock it with the recovery channel 9; control the negative pressure pump 8 to start through the PLC 12 to recover the raw materials remaining at the discharge port of the feeding valve to the recovery barrel 4.

[0042] S5. The injection valve is separated from the recovery channel 9, and the first motor 5 is controlled by the PLC 12 to close the rotating door 2.

[0043] S6. The air compressor 11 is controlled by the PLC 12 to start, and gas is injected into the storage barrel 3 through the one-way valve 10. The liquid in the storage barrel 3 is discharged from the discharge port 307 of the storage barrel.

[0044] S7. The cleaning liquid enters the storage barrel through the cleaning liquid injection port 303. When the liquid level reaches the position corresponding to the first liquid level sensor 308, the second motor 6 is controlled by the PLC 12 to start to drive the stirrer 310 to rotate.

[0045] S8. Repeat S6 to discharge the cleaning liquid in the storage barrel 3.

[0046] S9. The temperature control system 311 is started to heat and dry the storage barrel 3.

[0047] It should be noted that the same or similar parts in this embodiment and Embodiment 2 can be referred to each other and will not be elaborated in this application.

[0048] In summary, through negative pressure recovery, dynamic adaptive sealing interface, magnetic stirring - temperature control linkage technology and real - time liquid level detection and feedback device, the present invention efficiently recovers the residual injection amount, greatly improves the sealing performance of the injection - mixing process, effectively reduces the volatilization of raw materials, and realizes a high degree of automation in the injection - mixing process.

Claims

1. An intelligent stirring and sealing material barrel with anti-drip and residue removal features, characterized in that, Comprising: A metal housing (1), a rotating door (2) is provided at the top of the metal housing (1), and a material storage barrel (3) and a recycling barrel (4) are provided inside the metal housing (1); Wherein, an ultrasonic sensor is provided at the top of the rotating door (2); a first motor (5) for controlling the rotating door (2) is provided on the inner wall of the metal housing (1); a second motor (6) is provided below the material storage barrel (3), and a stirring element (310) is provided inside the material storage barrel (3), and the stirring element (310) is controlled by the second motor (6); the material storage barrel (3) is also provided with liquid level sensors corresponding to different liquid level positions; the recycling barrel (4) is connected to a negative pressure pump (8) above through a recycling material discharge pipe (7), and the negative pressure pump (8) is connected to a recycling channel (9).

2. The intelligent stirring and sealing material bucket for preventing dripping and removing residues according to claim 1, characterized in that, The docking port of the material storage barrel (3) is a spiral groove made of polytetrafluoroethylene material, and the spiral groove is composed of a number of wedge blocks (301), and each wedge block (301) is connected to a corresponding return spring (302). When the return spring (302) is in an extended state, the spiral groove is sealed.

3. The intelligent stirring and sealing material barrel for preventing dripping and removing residues according to claim 2, characterized in that, A cleaning liquid injection port (303) and an air inlet (304) are provided on the side wall of the material storage barrel (3); the air inlet (304) is connected to a one-way valve (10) and an air compressor (11) through an air pipe (305).

4. The intelligent stirring and sealing material barrel for preventing dripping and removing residues according to claim 3, wherein, A liquid level observation slit (306) is provided on the side wall of the material storage barrel (3), and the liquid level observation slit (306) is equal in height to the material storage barrel (3) for observing the liquid level height inside the material storage barrel; a first liquid level sensor (308) and a second liquid level sensor (309) are installed outside the liquid level observation slit (306); the liquid level position corresponding to the first liquid level sensor (308) is lower than the liquid level position corresponding to the second liquid level sensor (309).

5. The intelligent stirring and sealing material barrel for preventing dripping and removing residues according to claim 4, characterized in that A temperature control system (311) is provided inside the material storage barrel (3), and the temperature control system (311) is composed of a refrigeration plate and a heating plate. The refrigeration plate and the heating plate are integrated on the inclined wall at the bottom of the material storage barrel (3) and are distributed in a ring shape for changing the temperature inside the material storage barrel (3).

6. The intelligent stirring and sealing material barrel for preventing dripping and removing residues according to claim 5, characterized in that, A bracket (13) is provided below the material storage barrel (3), and the bracket (13) is used to place the one-way valve (10), the air compressor (11) and the PLC (12).

7. A working method of the intelligent stirring and sealing material barrel as described in claim 6, characterized in that, Comprising: S1. Detect the approaching signal of the injection valve through the ultrasonic sensor, transmit the approaching signal of the injection valve to the PLC (12), and control the first motor (5) to start through the PLC (12) to open the rotating door (2); S2. After the injection valve is docked with the docking port of the material storage barrel (3), start the injection; when the liquid level reaches the position corresponding to the first liquid level sensor (308), control the second motor (6) to start through the PLC (12) to drive the stirring element (310) to rotate, so that the liquid inside the material storage barrel (3) is evenly mixed; S3. When the liquid level reaches the position corresponding to the second liquid level sensor (309), control the second motor (6) to close through the PLC (12); and close the injection valve to separate the injection valve from the material storage barrel (3); S4. The injection valve moves above the recovery barrel (4) and docks with the recovery channel (9); the negative pressure pump (8) is started through the PLC (12) to recover the raw materials remaining at the outlet of the injection valve into the recovery barrel (4).

8. The working method of the intelligent stirring and sealing material barrel according to claim 7, characterized in that, In S2, it further includes: Starting the temperature control system (311) to cool the storage barrel (3).

9. The working method of the intelligent stirring and sealing material barrel according to claim 7 or 8, characterized in that, It further includes: S5. The injection valve is separated from the recovery channel (9), and the first motor (5) is controlled by the PLC (12) to close the rotary door (2); S6. The air compressor (11) is started through the PLC (12), and gas is injected into the storage barrel (3) through the one-way valve (10), and the liquid in the storage barrel (3) is discharged from the outlet of the storage barrel (307); S7. The cleaning liquid enters the storage barrel through the cleaning liquid injection port (303). When the liquid level reaches the position corresponding to the first liquid level sensor (308), the second motor (6) is started through the PLC (12) to drive the stirrer (310) to rotate; S7. Repeat S6 to discharge the cleaning liquid in the storage barrel (3).

10. The working method of the intelligent stirring and sealing material barrel according to claim 9, characterized in that, It further includes: S8. Starting the temperature control system (311) to heat and dry the storage barrel (3).

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