Integrated device capable of automatically completing configuration of dangerous chemical reagent

Abstract

The invention provides an integrated device capable of automatically completing preparation of dangerous chemical reagents. Belongs to the field of laboratory automation equipment. According to the technical key points, the device comprises a shell, a transverse plate fixed in the shell and a reaction tank penetrating through and fixed to the transverse plate, an upper rotating disc rotationally connected with the shell is arranged above the transverse plate, a supporting cylinder is fixed to one side of the top of the upper rotating disc, first hydraulic rods are symmetrically arranged at the top of the supporting cylinder, and the first hydraulic rods are fixedly connected with the upper rotating disc; the output end of the first hydraulic rod is connected with a top cover matched with the reaction tank; a stirring unit for stirring a reagent in the reaction tank is arranged on the top cover; the invention aims to provide an integrated device capable of automatically completing the preparation of dangerous chemical reagents. The method is used for avoiding chemical exposure risks, does not need whole-course guarding of personnel, and improves the preparation efficiency of dangerous chemical reagents.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of laboratory automation equipment, and in particular to an integrated device capable of automatically completing the configuration of dangerous chemical reagents. BACKGROUND

[0002] In the laboratories of cutting-edge scientific fields such as chemistry, biology, and medicine, the orderly development of daily work cannot be separated from the precise preparation of various chemical reagents. These chemical reagents, like the cornerstone of scientific research, are the key elements that drive the experimental process and obtain accurate data. However, not all reagent preparation can be easily handled. Strongly corrosive reagents, toxic and volatile reagents, and reagents that release heat during preparation, like hidden "dangerous factors", pose a significant threat to personnel safety and experimental environment.

[0003] Strongly corrosive reagents represented by concentrated sulfuric acid have strong oxidizing and dehydrating properties. If they accidentally come into contact with the human body, they can cause severe burns instantly, even penetrating into the internal organs, causing incurable pain. Toxic and volatile reagents like phenol have toxic gases that can damage the nervous system, liver, and other important organs if inhaled by the human body. Long-term exposure can also induce cancer. As for sodium hydroxide solution, it releases heat during preparation. If not handled properly, the splashing of the solution can not only burn the operator but also damage the experimental equipment.

[0004] Currently, the preparation of such high-risk reagents mainly relies on manual operation or semi-automatic operation in a fume hood. In the process of manual operation, the operator inevitably comes into direct contact with toxic, corrosive, or volatile substances, and the risk of poisoning, burns, or inhalation injury exists at all times. Even semi-automatic operation in a fume hood only reduces some risks, not completely eliminates them. Moreover, the preparation process of these reagents is complex, requiring the operator to monitor every step closely, consuming a lot of time and effort. If the operator is negligent, it may cause serious safety accidents and incur immeasurable losses to the laboratory. Therefore, how to more safely and efficiently prepare these high-risk reagents has become an important problem that needs to be solved in the laboratory. SUMMARY

[0005] The purpose of the present application is to provide an integrated device capable of automatically completing the configuration of dangerous chemical reagents to solve the problems raised in the background.

[0006] To achieve the above purpose, the present application provides the following technical solutions:

[0007] An integrated device capable of automatically completing the configuration of dangerous chemical reagents, comprising a housing, a transverse plate fixed inside the housing, and a reaction tank penetrating and fixed to the transverse plate,

[0008] The upper side of the horizontal plate is provided with an upper turntable rotatably connected with the shell, the top side of the upper turntable is fixed with a supporting cylinder, the top of the supporting cylinder is symmetrically provided with a first hydraulic rod, the output end of the first hydraulic rod is connected with a top cover matched with the reaction tank, and the top cover is provided with a stirring unit for stirring reagents in the reaction tank;

[0009] The top of the upper turntable is arranged with a plurality of liquid storage barrels in an annular array, the top of each liquid storage barrel is provided with a plug, the plug is fixedly penetrated with a first connecting pipe extending into the bottom of the liquid storage barrel, the other end of each first connecting pipe is connected with a first syringe pump, and the output end of each first syringe pump is connected with a dosing pipe penetrating downwardly through the upper turntable.

[0010] The lower side of the horizontal plate is provided with a lower turntable rotatably connected with the shell, and the lower turntable is provided with a temperature control unit capable of being selectively switched to cooperate with the bottom of the reaction tank; the temperature control unit comprises an electric heating block capable of sliding up and down on the lower turntable and used for contact heating of the reaction tank, and a water bath barrel also capable of sliding up and down on the lower turntable and used for containing cooling medium to perform water bath cooling on the reaction tank.

[0011] The bottom of the electric heating block is connected with a sliding rod, the sliding rod is provided with a bracket fixed with the lower turntable, a return spring is arranged between the electric heating block and the bracket, and the bottom of the water bath barrel is provided with a semiconductor refrigeration sheet.

[0012] The inner bottom wall of the shell is fixed with a second hydraulic rod, and the output end of the second hydraulic rod is connected with a push plate capable of upward pushing the electric heating block or the water bath barrel.

[0013] The upper turntable and the lower turntable are connected through a rotating shaft penetrating therebetween, and the bottom end of the rotating shaft is connected with a stepping motor fixed on the inner bottom of the shell.

[0014] The inner wall of the shell is provided with an infrared temperature sensor corresponding to the reaction tank, the outer wall of the shell is provided with a PLC controller, and the first hydraulic rod, the first syringe pump, the electric heating block, the semiconductor refrigeration sheet, the second hydraulic rod, the infrared temperature sensor and the stepping motor are electrically connected with the PLC controller.

[0015] As a further scheme of the application, the stirring unit comprises a driving motor fixed on the top of the top cover, the output shaft of the driving motor is connected with a stirring paddle extending into the reaction tank, and the driving motor is electrically connected with the PLC controller.

[0016] As a further scheme of the present application, a feeding pipe is fixed through the top of the shell, a weighing hopper is arranged below the feeding pipe and penetrates the upper turntable, the weighing hopper is fixed on a weighing sensor on the top of the upper turntable through a support frame, a third valve is arranged at the bottom of the weighing hopper, and the weighing sensor and the third valve are electrically connected with the PLC controller.

[0017] As a further scheme of the present application, a sealing ring is arranged at the bottom of the top cover for sealing cooperation with the top of the reaction tank.

[0018] As a further scheme of the present application, a fifth valve in communication with the inside of the shell is arranged on one side of the shell, the fifth valve is located between the upper turntable and the lower turntable and is used for introducing inert gas, an exhaust pipe penetrating the shell is connected to one side of the reaction tank, a fourth valve is arranged at the outlet of the exhaust pipe, a three-way valve is further arranged on one side of the shell, one way of the three-way valve is in communication with the outlet of the fourth valve, and the other way is in communication with the inside of the shell, a gas detection sensor is arranged at the bottom of the lower turntable, and the fifth valve, the gas detection sensor, the three-way valve and the fourth valve are electrically connected with the PLC controller.

[0019] As a further scheme of the present application, a hot air machine is arranged at the top of the shell, the air outlet of the hot air machine is in communication with the three-way valve, and the hot air machine is electrically connected with the PLC controller.

[0020] As a further scheme of the present application, a first silicon rubber bellows is connected between the top of the top cover and the inner top of the support cylinder, a retaining ring is arranged at the top edge of the water bath barrel and the electric heating block, a first valve is arranged at the bottom of the water bath barrel, and a top frame is arranged at the outer bottom of the water bath barrel.

[0021] As a further scheme of the present application, a suction pipe is connected to one side of the reaction tank, a second connecting pipe is connected to the suction pipe through a second valve, a second syringe pump is connected to the other end of the second connecting pipe, the second syringe pump is fixed on the shell, and the second valve and the second syringe pump are electrically connected with the PLC controller.

[0022] As a further scheme of the present application, a rotating seat is rotatably connected to the inner bottom wall of the shell, a tooth ring is fixed to the inner side of the rotating seat, the tooth ring is engaged with a gear, the gear is fixed to a transmission shaft, and the transmission shaft is rotatably connected with the shell; a belt wheel is fixed to the transmission shaft and the rotating shaft, and the two belt wheels are drivingly connected through a belt; and a first taking and placing door corresponding to the rotating seat is rotatably connected to the outer wall of the shell.

[0023] As a further scheme of the present application, the outer wall of the shell is rotationally connected with a second taking and placing door, which corresponds to the position of the liquid storage barrel.

[0024] Compared with the prior art, the present application has the following beneficial effects:

[0025] After adopting the above structure,

[0026] 1. By adopting a fully enclosed shell, a rotary raw material bin, a high-precision metering and adding module, a central reaction tank, a switchable temperature control module, an automatic dispensing module and an in-situ cleaning module are integrated, so that all processes from accurate metering and adding of liquid raw materials, closed mixing and reaction, programmed temperature control, to product dispensing and reactor cleaning and drying are automatically completed in a closed space according to a preset program by a PLC controller, so that the operator does not need to directly contact any dangerous chemicals, avoiding chemical exposure risk, and at the same time, personnel are not required to be on duty throughout the process, improving the configuration efficiency of dangerous chemical reagents.

[0027] 2. By constructing a completely closed operation shell, and integrating all processes involving dangerous chemicals, including raw material taking, metering and adding, mixing and reaction, temperature control, product dispensing and waste liquid treatment, into the closed environment and automatically completing them, the operator only needs to set parameters and start the program through an external man-machine interface, and all actual chemical contact operations are automatically executed by a mechanical execution mechanism in a sealed environment, reducing the possibility of the operator directly contacting toxic, harmful, corrosive or flammable and explosive chemical reagents, and effectively reducing occupational injuries such as chemical burns and inhalation poisoning.

[0028] 3. By designing a cleaning module integrated with a cleaning liquid pipeline, a high-purity water pipeline, an inert gas pipeline and a negative pressure suction pipeline, and connecting it to a second injection pump for waste liquid pumping, the module can be automatically positioned and sequentially inject cleaning agent and high-purity water into the target container for stirring and washing, and finally use inert gas to dry and blow, and automatically pump all waste liquid for collection, avoiding the uncontrollability of manual cleaning and the pollution risk caused by container transfer, providing a clean container environment for the next round of preparation or dispensing, and seamlessly integrating the necessary post-processing link of cleaning into the automatic process, further reducing manual intervention, and realizing true "preparation-dispensing-cleaning" full-cycle automation. BRIEF DESCRIPTION OF DRAWINGS

[0029] The present application will be further described in detail below in combination with the embodiments in the drawings, but does not constitute any limitation on the present application.

[0030] Figure 1 It is a structural schematic view of an integrated device capable of automatically completing the configuration of dangerous chemical reagents.

[0031] Figure 2 A part structure diagram of the integrated device capable of automatically completing the configuration of dangerous chemical reagents Figure 1

[0032] Figure 3 A part structure diagram of the integrated device capable of automatically completing the configuration of dangerous chemical reagents

[0033] Figure 4 A part structure diagram of the integrated device capable of automatically completing the configuration of dangerous chemical reagents Figure 3

[0034] A part structure diagram of the integrated device capable of automatically completing the configuration of dangerous chemical reagents Figure 5 Figure 3

[0035] Figure 6 A part structure diagram of the integrated device capable of automatically completing the configuration of dangerous chemical reagents Figure 3

[0036] A part structure diagram of the integrated device capable of automatically completing the configuration of dangerous chemical reagents Figure 7 Figure 3 A part structure diagram of the integrated device capable of automatically completing the configuration of dangerous chemical reagents

[0037] Figure 8 A part structure diagram of the integrated device capable of automatically completing the configuration of dangerous chemical reagents Figure 3

[0038] A part structure diagram of the integrated device capable of automatically completing the configuration of dangerous chemical reagents Figure 9

[0039] A part structure diagram of the integrated device capable of automatically completing the configuration of dangerous chemical reagents Figure 10 Figure 9 A part structure diagram of the integrated device capable of automatically completing the configuration of dangerous chemical reagents

[0040] Figure 11 A part structure diagram of the integrated device capable of automatically completing the configuration of dangerous chemical reagents Figure 9

[0041] ​​​​​​In the figure: 1, the shell; 2, the horizontal plate; 3, the bounce tank; 4, the upper turntable; 5, the support cylinder; 6, the first hydraulic rod; 7, the first silicone rubber bellows; 8, the drive motor; 9, the top cover; 10, the sealing ring; 11, the stirring paddle; 12, the liquid storage barrel; 13, the plug; 14, the first connecting pipe; 15, the first syringe pump; 16, the dosing pipe; 17, the weighing hopper; 18, the weighing sensor; 19, the support frame; 20, the second rubber bellows; 21, the feeding pipe; 22, the lower turntable; 23, the electric heating block; 24, the sliding rod; 25, the bracket; 26, the return spring; 27, the water bath barrel; 28, the semiconductor refrigeration fin; 29, the top frame; 30, the first valve; 31, the retaining ring; 32, the second hydraulic rod; 33, the push plate; 34, the stepper motor; 35, the rotating shaft; 36, the second valve; 37, the second connecting pipe; 38, the second syringe pump; 39, the rotating seat; 40, the transmission shaft; 41, the pulley; 42, the belt; 43, the gear; 44, the gear ring; 45, the exhaust pipe; 46, the three-way valve; 47, the third connecting pipe; 48, the hot air blower; 49, the gas detection sensor; 50, the third valve; 51, the infrared temperature sensor; 52, the PLC controller; 53, the first take-and-place door; 54, the second take-and-place door; 55, the fourth valve; 56, the fifth valve; 57, the extraction pipe; DETAILED DESCRIPTION

[0042] The technical solution of the patent will be further described in detail in combination with the specific embodiments.

[0043] Please refer to Figures 1-11 An integrated device capable of automatically completing the configuration of dangerous chemical reagents, comprising a closed shell 1. The shell 1 is preferably made of corrosion-resistant metal material (such as stainless steel), and its interior constitutes a controlled operating environment. Inside the shell 1, a horizontal plate 2 is fixedly connected, and a reaction tank 3 is penetrated and fixed on one side of the horizontal plate 2 for containing and mixing various raw materials required for configuring dangerous chemical reagents. The reaction tank 3 is preferably made of acid and alkali resistant, heat shock resistant glass (such as borosilicate glass) or special alloy.

[0044] Above the horizontal plate 2, an upper turntable 4 is rotationally connected with the shell 1, and a lifting cover closing mechanism is provided to close the reaction tank 3 and realize the stirring function. The mechanism includes a support cylinder 5 rotationally connected with the shell 1 and rotatable with the upper turntable 4. The support cylinder 5 is fixedly connected with the turntable 4, and two first hydraulic rods 6 are symmetrically penetrated and fixed on the top of the support cylinder 5. The output ends of the first hydraulic rods 6 are downwardly fixedly connected with a top cover 9 matched with the mouth of the reaction tank 3. The first hydraulic rods 6 are synchronously extended and retracted under the instruction of the control system to drive the top cover 9 to move up and down, thereby completing the closing and opening of the reaction tank 3. The bottom of the top cover 9 is fixedly connected with a sealing ring 10 to ensure the air tightness when the reaction tank 3 is closed.

[0045] A stirring unit is installed on the top cover 9, which includes a drive motor 8 fixed on the top of the top cover 9, the output shaft of which penetrates the top cover 9 and is fixedly connected with a stirring paddle 11 extending into the reaction tank 3. When the drive motor 8 is started, it can drive the stirring paddle 11 to rotate and mix the materials in the tank. A first silicone rubber bellows 7 is connected between the top of the top cover 9 and the inner top of the support cylinder 5, which can stretch and contract with the lifting of the top cover 9 to maintain the sealing between the inside of the support cylinder 5 and the rotating station.

[0046] A plurality of liquid storage barrels 12 are fixedly connected in an annular array on the top of the upper turntable 4. Each liquid storage barrel 12 is used to independently hold one kind of liquid chemical raw material (such as acid, alkali, solvent, etc., which is not limited by the present application), and at least one of the plurality of liquid storage barrels 12 is used to hold deionized water, and the rest can be used to hold various liquid chemical raw materials such as acid, alkali, organic solvent, etc. or cleaning liquid. A plug cover 13 is clamped on the top of each liquid storage barrel 12. A first connecting pipe 14 is fixedly penetrated in the plug cover 13 and extends into the bottom of the liquid storage barrel 12. The other end of the first connecting pipe 14 is connected with a first syringe pump 15, and the output end of the first syringe pump 15 is fixedly connected with a dosing pipe 16 extending downward and penetrating the upper turntable 4. When it is necessary to add a certain liquid raw material, the upper turntable 4 is rotated by the stepping motor 34 to accurately rotate the dosing pipe 16 of the corresponding liquid storage barrel 12 to the exact position above the reaction tank 3, and then the corresponding first syringe pump 15 is started to pump the specified volume of liquid into the reaction tank 3.

[0047] A dosing pipe 21 is fixedly penetrated on the top of the shell 1, and a weighing hopper 17 penetrating the upper turntable 4 is correspondingly arranged below the dosing pipe 21. The weighing hopper 17 is fixed on a weighing sensor 18 through a support frame 19, and the weighing sensor 18 is fixed on the top of the upper turntable 4. Solid raw materials are added to the weighing hopper 17 through the dosing pipe 21, and the weighing sensor 18 measures the weight in real time. A third valve 50 is installed at the bottom of the weighing hopper 17. When it is necessary to add materials, the weighing hopper 17 is rotated to the exact position above the reaction tank 3 by the upper turntable 4, the third valve 50 is opened, and the solid raw materials fall into the reaction tank 3.

[0048] A lower turntable 22 is arranged in the corresponding area of the bottom of the reaction tank 3 below the horizontal plate 2 and is rotatably connected with the shell 1. A temperature control unit is installed on the lower turntable 22 and can be rotated to the bottom of the reaction tank 3 for selective use. It includes an electric heating block 23 which can slide up and down in the lower turntable 22. The bottom of the electric heating block 23 is fixed with a sliding rod 24, and the sliding rod 24 is sleeved with a bracket 25 fixed with the lower turntable 22. A return spring 26 is connected between the electric heating block 23 and the bracket 25, so that the electric heating block 23 remains in the low position in the non-working state to avoid scratching during rotation.

[0049] A water bath bucket 27 is also included, which can slide up and down in the lower turntable 22. The bottom of the water bath bucket 27 is provided with a first valve 30 for draining water, and a semiconductor refrigeration piece 28 for refrigeration. The bottom of the water bath bucket 27 is provided with a top frame 29 to protect the semiconductor refrigeration piece 28. The top edge of the water bath bucket 27 is also provided with a retaining ring 31 for limiting the position. The upper turntable 4 and the lower turntable 22 are mechanically connected and synchronously rotated by a rotating shaft 35 penetrating through the upper turntable 4 and the lower turntable 22. The bottom end of the rotating shaft 35 is driven by a stepping motor 34 fixed on the bottom of the shell 1. The rotation angle of the stepping motor 34 is controlled by a PLC controller 52, so that the alignment of any station on the upper and lower turntables with the fixed reaction tank 3 can be accurately controlled.

[0050] A second hydraulic rod 32 is fixed on the bottom wall of the shell 1, directly below the reaction tank 3. The output end of the second hydraulic rod 32 is upwardly fixedly connected with a push plate 33. When the electric heating block 23 or the water bath bucket 27 is rotated to the position, the second hydraulic rod 32 is elongated, and the push plate 33 pushes the bottom of the sliding rod 24 or the bottom of the water bath bucket 27 upward, so that the electric heating block 23 is in close contact with the bottom of the reaction tank 3 for heating, or the water bath bucket 27 is lifted to immerse the lower half of the reaction tank 3 in the internal cooling liquid. After the work is completed, the second hydraulic rod 32 is retracted, and the temperature control module is reset under the action of the reset spring 26 or gravity.

[0051] A fifth valve 56 is fixedly connected to one side of the shell 1, and the inlet of the fifth valve 56 can be connected to an inert gas source such as nitrogen. After the valve is opened, the inert gas is introduced into the space between the upper turntable 4 and the lower turntable 22 to replace the air and reduce the oxidation of raw materials. An exhaust pipe 45 is connected to one side of the reaction tank 3, and a fourth valve 55 leading to the outside of the shell 1 can be connected to an external waste gas treatment system. A three-way valve 46 is also provided on the same side of the shell 1, one way of which is combined with the outlet of the fourth valve 55, and the other way of which is connected to the internal space of the shell, for discharging the gas in the cavity of the device. The reaction waste gas or the gas in the cavity can be uniformly sent to the external treatment through this pipeline.

[0052] A gas detection sensor 49 is installed at the bottom of the lower turntable 22 to monitor the gas composition in the cavity of the device in real time, and an alarm can be triggered immediately once a dangerous gas leakage (such as reaction waste gas) is detected. A hot air blower 48 is fixed on the top of the shell 1, and the outlet of the hot air blower 48 is connected to the three-way valve 46 through a pipeline. After the device is cleaned, the three-way valve 46 can be switched to guide the hot air into the cavity to quickly dry the reaction tank 3 and other components.

[0053] A side of the reaction tank 3 is connected to a suction pipe 57, which is connected to a second syringe pump 38 through a second valve 36 and a second connecting pipe 37. The second syringe pump 38 is fixed on the shell 1 and used to suck out the reagent after the reaction. The reagent bottles for dispensing are placed on a rotating seat 39 at the bottom of the shell 1. To realize automatic dispensing into different bottles, the rotating seat 39 is rotatably installed at the bottom of the shell 1. The inner side is fixed with a gear ring 44, which is engaged with a gear wheel 43. The gear wheel 43 is fixed on a transmission shaft 40. The transmission shaft 40 is driven by a belt wheel 41 and a belt 42 to drive the rotating shaft 35 of the upper and lower turntables. Therefore, when the step motor 34 drives the rotating shaft 35 to rotate to switch the working position, the transmission shaft 40 and the gear wheel 43 are also driven synchronously, thereby driving the rotating seat 39 to rotate, and rotating different empty reagent bottles to the liquid outlet below the second syringe pump 38 for dispensing in turn. A first taking and placing door 53 is arranged on the outer wall of the shell 1, which is convenient for placing and taking out the reagent bottles.

[0054] A PLC controller 52 is fixedly installed on the outer wall of the shell 1. The first hydraulic rod 6, the driving motor 8, the first syringe pump 15, the weighing sensor 18, the third valve 50, the electric heating block 23, the second hydraulic rod 32, the step motor 34, the second syringe pump 38, the second valve 36, the gas detection sensor 49, the fourth valve 55, the fifth valve 56, the three-way valve 46, the hot air machine 48, and the infrared temperature sensor 51 fixed on the inner wall of the shell 1 for real-time monitoring of the temperature of the outer wall of the reaction tank 3, and all the key actuators and sensors are electrically connected with the PLC controller 52. The operator can preset the formula program (including the type, dosage, sequence, stirring speed and time, temperature setting and holding time, etc.) through the man-machine interface (such as a touch screen, not shown in the figure) connected with the PLC controller 52, realize the automatic and programmed control of the whole process from feeding, mixing, temperature control, reaction to dispensing, and minimize the direct contact of dangerous chemicals by human beings, improve the accuracy, repeatability and safety of the configuration. A second taking and placing door 54 is arranged on the outer wall of the shell 1 and corresponds to the position of the liquid storage barrel 12, which is convenient for supplementing or replacing the raw materials of the liquid storage barrel 12 without opening the main cavity.

[0055] When in use, before operation, the PLC controller 52 controls the fifth valve 56 to open, and inert gas such as nitrogen is introduced into the space between the upper turntable 4 and the lower turntable 22 in the housing 1, while the three-way valve 46 is controlled to communicate the inside of the housing 1 to displace the air inside, reducing the risk of oxidation or side reaction of the raw materials with oxygen. The gas detection sensor 49 monitors the gas composition in the cavity in real time. During preparation, the PLC controls the first hydraulic rod 6 to retract, and the top cover 9 is lifted. Then, the stepper motor 34 is started, and the upper turntable 4 and the lower turntable 22 are driven to rotate synchronously by the rotating shaft 35, so as to expose the empty reaction tank 3 position (i.e. the position where the top cover 9 is not covered). If the reaction tank needs to be pre-cleaned or filled with catalyst, etc., this step can be designed to be manually or automatically executed, and the default of the present embodiment is that the reaction tank is ready.

[0056] Then the PLC controls the stepper motor 34 to rotate, so that the weighing hopper 17 is accurately rotated to the position directly above the reaction tank 3. The operator adds the specified type of solid raw material into the weighing hopper 17 through the feeding pipe 21, and the weighing sensor 18 measures and feeds back the weight to the PLC in real time. When the preset weight is reached, the PLC controls the third valve 50 to open, and the solid raw material falls into the reaction tank 3. Then the valve is closed. Then the PLC controls the stepper motor 34 to rotate again, and according to the formula sequence, the feeding pipe 16 corresponding to the liquid storage barrel 12 containing the first target liquid raw material is rotated to the position directly above the reaction tank 3. The PLC starts the corresponding first injection pump 15, and a pre-set volume of liquid is extracted from the liquid storage barrel 12 through the first connecting pipe 14 and injected into the reaction tank 3 through the feeding pipe 16. Repeat this process until all liquid raw materials are added according to the formula sequence and dosage. When all the raw materials are added, the PLC controls the stepper motor 34 to rotate, so that the supporting cylinder 5 and the top cover 9 are rotated to the position directly above the reaction tank 3.

[0057] Then, the first hydraulic rod 6 extends, the top cover 9 is driven to descend, and the sealing ring 10 is tightly closed with the mouth of the reaction tank 3. Then, the PLC control drive motor 8 is started according to the requirement, the stirring paddle 11 is rotated, the mixture in the reaction tank 3 is fully stirred, and the reaction is promoted. At the same time, the infrared temperature sensor 51 continuously monitors the temperature of the outer wall of the reaction tank 3 and feeds back to the PLC. If the preset program needs to be heated or the monitored temperature is lower than the set value, the PLC controls the stepping motor 34 to rotate, and the electric heating block 23 on the lower turntable 22 is rotated to be directly below the reaction tank 3. Then, the PLC controls the second hydraulic rod 32 to extend, the push plate 33 pushes the sliding rod 24 upwards, the electric heating block 23 overcomes the elastic force of the return spring 26 and rises until it is in close contact with the bottom of the reaction tank 3 and is heated. When the temperature reaches the set value, the second hydraulic rod 32 is retracted, and the electric heating block 23 is separated from the contact under the action of the return spring. If the preset program needs to be cooled or the monitored temperature is higher than the set value, the PLC controls the stepping motor 34 to rotate, and the water bath barrel 27 on the lower turntable 22 is rotated to be directly below the reaction tank 3. The first injection pump 15 controls the deionized water storage barrel 12 to inject a proper amount of cooling water into the water bath barrel 27.

[0058] Then, the PLC controls the second hydraulic rod 32 to extend, the push plate 33 pushes the water bath barrel 27 upwards, the water bath barrel 27 rises and covers the lower part of the reaction tank 3, and the tank body is immersed in the cooling liquid. At the same time, the PLC can control the semiconductor refrigeration sheet 28 to work, continuously refrigerate the cooling water, and realize rapid cooling. During the whole reaction process, the gas detection sensor 49 continuously works to ensure that there is no dangerous gas leakage. After the reaction reaches the preset time, the drive motor 8 stops stirring. According to the requirement, the cooling program can be started to make the material drop to a safe temperature. Then, the PLC controls the top cover 9 to rise. Then, the stepping motor 34 is controlled to rotate, the suction pipe of the second injection pump 38 and the work position of the empty reagent bottle on the rotating seat 39 are aligned, and then the PLC controls the second valve 36 to open and starts the second injection pump 38 to quantitatively extract and pump out the reagent prepared in the reaction tank 3 and inject it into the first reagent bottle. After one bottle is finished, the second injection pump 38 is paused. The PLC controls the stepping motor 34 to rotate again. Since the shaft 35 drives the transmission shaft 40 and the gear 43 through the belt wheel 41 and the belt 42, the gear 43 drives the rotating ring 44 to rotate the rotating seat 39, and the next empty reagent bottle is rotated to be below the outlet of the second injection pump 38. Repeat the dispensing steps until all the finished products are dispensed.

[0059] Afterwards, the PLC controls the first hydraulic rod 6 to retract, and the top cover 9 is lifted up. The PLC controls the stepper motor 34 to rotate, and the dosing pipe 16 corresponding to the liquid tank 12 storing deionized water is rotated to the top of the reaction tank 3. Then the corresponding first injection pump 15 is started, and a certain volume of deionized water is injected into the reaction tank 3. The PLC controls the top cover 9 to be lowered and closed, and the driving motor 8 is started to drive the stirring paddle 11 to rotate at a medium or high speed for a period of time, such as 3-5 minutes, to fully stir and wash the tank, so as to effectively remove the soluble residues attached to the tank wall and the stirring paddle. Then the stirring is stopped, and the top cover is lifted up. The PLC controls the second injection pump 38 to be started again, and the cleaning waste water is completely pumped out to the waste liquid collection bottle. If the reaction residues are fat-soluble or need to be neutralized by acid or alkali, the PLC controls the stepper motor 34 to rotate to select the corresponding organic solvent (such as ethanol) or dilute acid / alkali liquid tank 12. Then the above-mentioned process of “injection → closing → stirring → emptying” is repeated. The cleaning waste water is also pumped out to another designated waste liquid collection bottle by the second injection pump (38), so as to realize the classified collection of waste liquid.

[0060] After all the cleaning steps are completed, the PLC controls the second injection pump 38 to completely pump out the last rinse water in the reaction tank 3. Then the PLC controls the hot air blower 48 to be started, and controls the three-way valve 46 to be switched to communicate with the pipeline inside the shell 1. The hot air enters the inner cavity of the shell 1 through the pipeline, and directly blows into the interior of the open reaction tank 3, and also blows the entire cavity. The PLC can control the top cover 9 to be kept in the lifted state, and control the driving motor 8 to intermittently rotate the stirring paddle at a low speed, so that the hot air can blow to all the inner surfaces, and accelerate the evaporation of moisture.

[0061] The above-mentioned embodiments are the preferred embodiments of the present application, which are only used to facilitate the description of the present application, and do not limit the present application in any form. Any person with ordinary knowledge in the art can make partial changes or modifications to the equivalent embodiments within the scope of the technical features of the present application without departing from the technical features of the present application, and the changes or modifications still belong to the scope of the technical features of the present application.

Claims

1. An integrated device capable of automatically preparing hazardous chemical reagents, comprising a housing (1), a horizontal plate (2) fixed inside the housing (1), and a reaction vessel (3) penetrating and fixed to the horizontal plate (2), characterized in that: Above the horizontal plate (2) is an upper turntable (4) that is rotatably connected to the shell (1). A support cylinder (5) is fixed on one side of the top of the upper turntable (4). A first hydraulic rod (6) is symmetrically provided on the top of the support cylinder (5). The output end of the first hydraulic rod (6) is connected to a top cover (9) that is compatible with the reaction vessel (3). A stirring unit for stirring the reagents inside the reaction vessel (3) is provided on the top cover (9). The top of the upper turntable (4) is arranged in a ring array with multiple liquid storage tanks (12). Each liquid storage tank (12) is provided with a stopper cap (13) on its top. A first connecting pipe (14) extending into the bottom of the liquid storage tank (12) is fixed through the stopper cap (13). The other end of each first connecting pipe (14) is connected to a first injection pump (15). The output end of each first injection pump (15) is connected to a dosing pipe (16) that extends downward through the upper turntable (4). Below the horizontal plate (2) is a lower turntable (22) rotatably connected to the shell (1). The lower turntable (22) is equipped with a temperature control unit that can be selectively switched to cooperate with the bottom of the reaction vessel (3). The temperature control unit includes an electric heating block (23) that can slide up and down on the lower turntable (22) for contact heating of the reaction vessel (3), and a water bath (27) that can also slide up and down on the lower turntable (22) for containing cooling medium to perform water bath cooling of the reaction vessel (3). The bottom of the heating block (23) is connected to a sliding rod (24), and the sliding rod (24) is fitted with a bracket (25) fixed to the lower turntable (22). A return spring (26) is provided between the heating block (23) and the bracket (25). A semiconductor cooling chip (28) is provided at the bottom of the water bath (27). The inner bottom wall of the housing (1) is fixed with a second hydraulic rod (32), and the output end of the second hydraulic rod (32) is connected to a push plate (33) that can push the electric heating block (23) or the water bath (27) upward. The upper turntable (4) and the lower turntable (22) are connected by a rotating shaft (35) that passes through them. The bottom end of the rotating shaft (35) is connected to a stepper motor (34) fixed inside the bottom of the housing (1). The inner wall of the housing (1) is provided with an infrared temperature sensor (51) corresponding to the reaction vessel (3), and the outer wall of the housing (1) is provided with a PLC controller (52). The first hydraulic rod (6), the first injection pump (15), the heating block (23), the semiconductor cooling chip (28), the second hydraulic rod (32), the infrared temperature sensor (51) and the stepper motor (34) are all electrically connected to the PLC controller (52).

2. The integrated automatic preparation device for hazardous chemical reagents according to claim 1, characterized in that, The stirring unit includes a drive motor (8) fixed on the top of the top cover (9), and the output shaft of the drive motor (8) is connected to a stirring paddle (11) that extends into the reaction tank (3). The drive motor (8) is electrically connected to the PLC controller (52).

3. The integrated automatic preparation device for hazardous chemical reagents according to claim 1, characterized in that, A feeding pipe (21) is fixed through the top of the housing (1). A weighing hopper (17) is provided below the feeding pipe (21) and passes through the upper turntable (4). The weighing hopper (17) is fixed to the weighing sensor (18) on the top of the upper turntable (4) by a support frame (19). A third valve (50) is provided at the bottom of the weighing hopper (17). The weighing sensor (18) and the third valve (50) are both electrically connected to the PLC controller (52).

4. The integrated automatic preparation device for hazardous chemical reagents according to claim 1, characterized in that, The bottom of the top cover (9) is provided with a sealing ring (10) for sealing with the top of the reaction vessel (3).

5. The integrated automatic preparation device for hazardous chemical reagents according to claim 1, characterized in that, A fifth valve (56) communicating with the interior is provided on one side of the housing (1). The fifth valve (56) is located between the upper turntable (4) and the lower turntable (22) and is used to introduce inert gas. An exhaust pipe (45) penetrating the housing (1) is connected to one side of the reaction tank (3). A fourth valve (55) is provided at the outlet of the exhaust pipe (45). A three-way valve (46) is also provided on one side of the housing (1). One path of the three-way valve (46) is connected to the outlet of the fourth valve (55), and the other path is connected to the interior of the housing (1). A gas detection sensor (49) is provided at the bottom of the lower turntable (22). The fifth valve (56), the gas detection sensor (49), the three-way valve (46), and the fourth valve (55) are all electrically connected to the PLC controller (52).

6. The integrated automatic preparation device for hazardous chemical reagents according to claim 5, characterized in that, A hot air blower (48) is provided on the top of the housing (1). The air outlet of the hot air blower (48) is connected to the three-way valve (46). The hot air blower (48) is electrically connected to the PLC controller (52).

7. The integrated automatic preparation device for hazardous chemical reagents according to claim 1, characterized in that, A first silicone rubber corrugated pipe (7) is connected between the top of the top of the top cover (9) and the inner top of the support cylinder (5). The top edges of the water bath (27) and the electric heating block (23) are provided with retaining rings (31). The bottom of the water bath (27) is provided with a first valve (30), and the bottom of its outer side is provided with a top frame (29).

8. The integrated automatic preparation device for hazardous chemical reagents according to claim 1, characterized in that, The reaction vessel (3) is connected to an extraction pipe (57) on one side. The extraction pipe (57) is connected to a second connecting pipe (37) through a second valve (36). The other end of the second connecting pipe (37) is connected to a second injection pump (38). The second injection pump (38) is fixed on the housing (1). The second valve (36) and the second injection pump (38) are both electrically connected to the PLC controller (52).

9. The integrated automatic preparation device for hazardous chemical reagents according to claim 8, characterized in that, The inner bottom wall of the housing (1) is rotatably connected to a rotating seat (39). A toothed ring (44) is fixed on the inner side of the rotating seat (39). The toothed ring (44) meshes with a gear (43). The gear (43) is fixed on a transmission shaft (40). The transmission shaft (40) is rotatably connected to the housing (1). Both the transmission shaft (40) and the rotating shaft (35) are fixed with pulleys (41). The two pulleys (41) are connected by a belt (42). The outer wall of the housing (1) is rotatably connected to a first loading and unloading door (53) corresponding to the rotating seat (39).

10. The integrated automatic preparation device for hazardous chemical reagents according to claim 1, characterized in that, The outer wall of the housing (1) is rotatably connected to a second access door (54), which corresponds to the position of the liquid storage tank (12).

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