Chemical raw material conveying and taking device and method

Abstract

The invention provides a chemical raw material conveying and taking device and method, belongs to the field of pneumatic pipeline conveyors, and aims to solve the problem that a reaction kettle needs to be opened to interrupt the reaction process when raw materials are added into the reaction kettle in the chemical production operation process needing closed reaction in the prior art. The chemical raw material conveying and taking device comprises a temporary storage bin, a material taking device, a feeding pipe, a feeding device and an air pump. The head end of the feeding pipe is connected with the air pump to obtain wind power, and the tail end of the feeding pipe is connected into the reaction kettle; raw materials are stored in the temporary storage bin, and the material taking device is connected between the temporary storage bin and the feeding pipe and feeds the raw materials to the feeding pipe. And the feeder is connected to the joint of the feeding pipe and the reaction kettle for sealed feeding. The device is combined with the method, so that the problems of reaction interruption and reaction environment damage in a traditional feeding mode are avoided, and the continuity and the stability of chemical production are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the field of pneumatic pipeline conveyors, and in particular relates to a chemical raw material conveying and taking device and method. Background Art

[0002] In chemical production, putting raw materials into the reactor for chemical reaction is a key step in producing the target product. This process often needs to be carried out in a specific reaction environment to ensure the smooth progress of the chemical reaction and the quality of the product. The control of the reaction environment is crucial to chemical production, which is directly related to the quality of the product and production efficiency.

[0003] However, the traditional method of adding raw materials needs to be carried out when the reaction is interrupted, that is, the reaction needs to be stopped and the reactor needs to be opened to add new raw materials. This operation not only interrupts the continuous progress of the reaction, but also may destroy the stable reaction environment that has been formed, resulting in reduced production efficiency and fluctuations in product quality.

[0004] In view of the above pain points, it is particularly important to develop a device that can transport and add raw materials into the reactor without interrupting the reaction. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a chemical raw material feeding and taking device and method, which is used to solve the problem in the prior art that when adding raw materials to the reactor during chemical production operations that require closed reactions, the reactor needs to be opened to interrupt the reaction process.

[0006] To achieve the above-mentioned purpose and other related purposes, the present invention provides a chemical raw material feeding and taking device and method.

[0007] Among them, the chemical raw material feeding and taking device is used to add raw materials to the reactor, including: Temporary storage bin, material picker, feeding pipe, feeder and air pump; The head end of the feeding pipe is connected to the air pump to obtain wind power, and the tail end is connected to the inside of the reactor; The temporary storage bin stores raw materials, and the material extractor is connected between the temporary storage bin and the feeding pipe and delivers the raw materials to the feeding pipe; The feeder is connected to the connection between the feed pipe and the reactor to perform sealed feeding.

[0008] Optionally, the feeder includes a feed tube body, an isolation sphere, a connecting shaft and a rotation drive mechanism; The material pipe body comprises a feed side, a spherical connection part and a discharge side, the feed side is connected to the feed pipe, the discharge side is connected to the reactor, the isolation sphere is rotatably disposed in the cavity of the spherical connection part, and the rotation plane coincides with the axis of the material pipe body; One end of the connecting shaft is fixedly connected to the side of the isolation sphere, and the other end passes through the outside of the spherical connecting part and is driven by the rotation drive mechanism; At least one concave pit is arranged on the isolation sphere, and during the rotation of the isolation sphere, the concave pit is alternately connected with the feed side and the discharge side.

[0009] Optionally, the bottom of each of the pits is connected to a vent, and the opening of each of the pits is covered with an elastic membrane; The isolation sphere has a cavity at its center, and the cavity is connected to the vent; The connecting shaft is tubular, and the inside of the connecting shaft is connected to the cavity at the center of the isolation sphere; Initially, the elastic membrane is stretched into a plane, and when the gas in the pit is sucked through the tubular space of the connecting shaft, the elastic membrane is recessed along with the pit.

[0010] Optionally, each of the pits is provided with an air pipe, one end of the air pipe is connected to the bottom of the pit, and the other end passes through the cavity in the center of the isolation sphere and the tubular space of the connecting shaft in sequence to reach the outside of the feeder and is independently controlled by the pressure system.

[0011] Optionally, the rotary drive mechanism includes a drive motor, a gear pair, a rotary support ring and a support platform; The driven gear of the gear pair is fixedly connected to the connecting shaft, and the driving gear of the gear pair is fixedly connected to the output shaft of the driving motor; The connecting shaft is provided with an outer concave ring, the number of the outer concave rings matches the number of the pits, and the outer concave rings and the pits are connected one by one through the air pipe; The inner side of the rotating support ring is rotatably matched with the connecting shaft and covers the outer concave ring, and the outer side of the rotating support ring is fixedly supported by the supporting platform; An inner concave ring is arranged on the inner side of the rotating support ring, and the number and position of the inner concave ring correspond to the outer concave ring one by one to form a concave ring space, and each concave ring space is isolated from each other; On the outer side of the rotating support ring, air valve pipes are arranged in the areas corresponding to the concave ring spaces for connecting to the pressure system.

[0012] Optionally, the shell of the spherical connecting part is made of transparent material.

[0013] Optionally, the material extractor comprises a feed port, a discharge port, an air inlet and paddles; The feed port, the discharge port and the air inlet are connected to each other, and the paddle is arranged inside the connection part close to the discharge port; An oblique baffle is arranged between the discharge port and the air inlet, and the oblique baffle faces the discharge port and the paddle. The oblique baffle divides the paddle into two areas, one part of which is located on the side of the feed port, and the other part is located on the side of the air inlet.

[0014] Optionally, the pit, the air pipe, the outer concave ring, the inner concave ring and the air valve pipe are four groups; On the isolation sphere, the pits are evenly distributed in an array around the circumference of the axis of the connecting shaft; On the connecting shaft, the outer concave rings are arranged in an array along the axis of the connecting shaft.

[0015] Optionally, it further comprises a material delivery pipe, in which raw materials are delivered, the material delivery pipe is located above the temporary storage bin and delivers the raw materials to the temporary storage bin through an auxiliary pipe; On the feeding pipe, a branch pipe is also provided between the feeder and the taker, the inlet of the branch pipe is connected to the taker, the first outlet is downwardly connected to the feeder, the second outlet is upwardly connected to the conveying pipe or connected to the taker of the feeding pipe and the air pump to form a wind recovery loop, and a mesh screen is also provided on the second outlet side to block the material; It also includes a heat management loop, which obtains wind power from the feed pipe, wraps around the reactor for heat exchange, and then sends the wind power back to the feed pipe or the conveying pipe.

[0016] The chemical raw material feeding and taking method adopts the chemical raw material feeding and taking device as described above, and comprises the following steps: The air pump starts to convey with wind power, the material taker starts to discharge materials into the feeding pipe, and the wind power pushes the raw materials to the feeding side of the feeder; During the rotation of the isolating sphere of the feeder, the recesses of the isolating sphere are alternately connected with the feed side and the discharge side, accommodating the material on the feed side and pouring out the material on the discharge side; The fluid in the pit is sucked to adjust the volume of the pit, and the rotation speed of the connecting shaft is controlled to adjust the alternating speed of the pit at the feed side and the discharge side, thereby controlling the speed of adding raw materials into the reactor.

[0017] As described above, the chemical raw material feeding and taking device and method of the present invention have at least the following beneficial effects: The chemical raw material feeding and taking device realizes the continuous and stable addition of raw materials to the reactor while the reaction is in progress through the synergistic effect of the temporary storage bin, the taker, the feeding pipe, the feeder and the air pump. The device not only avoids the problems of reaction interruption and reaction environment damage in the traditional feeding method, but also significantly improves the continuity and stability of chemical production. At the same time, its sealed feeding design ensures the airtightness of the reaction environment, effectively prevents raw material leakage and external pollution, and further improves product quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is an overall schematic diagram of the present invention.

[0019] Figure 2 Shown is a schematic side cross-sectional view of the isolation sphere of the feeder of the present invention.

[0020] Figure 3 Shown is a schematic cross-sectional view of the driving side of the feeder of the present invention.

[0021] Figure 4 Shown is an overall cross-sectional schematic diagram of the feeder of the present invention.

[0022] Figure 5 Shown as the present invention Figure 4 A partial enlarged schematic diagram in the middle.

[0023] Figure 6 Shown is a schematic diagram of the inner concave ring and the outer concave ring of the present invention.

[0024] Figure 7 Shown is a schematic diagram of the material picker of the present invention.

[0025] Figure 8 It is a schematic diagram showing the present invention having multiple groups of takers and feeders.

[0026] Among them: reactor 1, temporary storage bin 2, material taker 3, feed port 30, inclined baffle 31, discharge port 32, air inlet 33, paddle 34, feed pipe 4, feeder 5, feed side 50, spherical connection part 51, discharge side 52, isolation sphere 53, pit 531, vent 532, elastic membrane 533, air pipe 54, connecting shaft 55, outer concave ring 551, drive motor 56, gear pair 57, rotating support ring 58, inner concave ring 584, air valve pipe 582, support platform 59, air pump 6, feed pipe 7, branch pipe 8, thermal management circuit 9. DETAILED DESCRIPTION

[0027] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0028] See also Figures 1 to 8. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0029] The following embodiments are only for illustration purposes and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0030] For this example, please refer to Figure 1-Figure 8 The chemical raw material feeding and taking device provided by the present invention is used to add raw materials to the reaction kettle 1, comprising: Temporary storage bin 2, material taker 3, material feeding pipe 4, material feeder 5 and air pump 6; The head end of the feeding pipe 4 is connected to the air pump 6 to obtain wind power, and the tail end is connected to the inside of the reactor 1; Raw materials are stored in the temporary storage bin 2, and the feeder 3 is connected between the temporary storage bin 2 and the feeding pipe 4 and feeds the raw materials to the feeding pipe 4. The air pump 6 blows the raw materials from the temporary storage bin 2 into the feeding pipe 4 through the feeder 3 into the feeder 5, and feeds the raw materials into the reactor 1 through the feeder 5; the feeder 5 is connected to the connection between the feeding pipe 4 and the reactor 1 for sealed feeding.

[0031] Specifically, the reaction in the reactor 1 may need to maintain a specific pressure, and the reactor 1 needs to remain closed during the continuous reaction. However, during the continuous reaction, the feed pipe 4 needs to remain connected to the reactor 1 so that the feed can be continuously fed. However, the raw materials in the feed pipe 4 are pneumatically transported, and during the feeding process, the airflow and the raw materials will enter the reactor 1 together, affecting the reaction environment pressure in the reactor. In order to solve this problem, a feeder 5 is set at the connection between the reactor 1 and the feed pipe 4.

[0032] Further, see Figure 2-Figure 4 The feeder 5 includes a feed tube body, an isolation sphere 53, a connecting shaft 55 and a rotation drive mechanism; The material pipe body includes a feed side 50, a spherical connection part 51 and a discharge side 52, the feed side 50 is connected to the feed pipe 4, the discharge side 52 is connected to the reactor 1, and the isolation sphere 53 is rotatably disposed in the cavity of the spherical connection part 51, and the rotation plane coincides with the axis of the material pipe body; One end of the connecting shaft 55 is fixedly connected to the side of the isolation sphere 53, and the other end passes through the outside of the spherical connecting part 51 and is driven by the rotation driving mechanism; At least one concave pit 531 is disposed on the isolation sphere 53 . During the rotation of the isolation sphere 53 , the concave pit 531 is alternately connected to the feed side 50 and the discharge side 52 .

[0033] In the above embodiment, the main working steps of the feeding process are as follows. Figure 2 : Figure 2 The initial state is shown, in which one of the pits 531 is facing upwards. When the raw material in the feeding tube 4 falls to the feeding side 50, the raw material will automatically fill the upward pit 531; Then the isolation sphere 53 rotates, and the upwardly facing recess 531 turns to the side ( Figure 2 At this time, the side recess 531 and the shell of the spherical connecting part 51 form a sealing structure, blocking the communication between the feed side 50 and the discharge side 52; The isolation sphere 53 continues to rotate, and the pit 531 containing the raw material rotates to the side facing the discharge side 52, and the raw material in the pit 531 automatically falls into the reactor 1 under the action of gravity.

[0034] During the continuous execution of the above steps, the raw materials required for the reaction are continuously fed into the reactor 1 through the recesses 531 on the isolation sphere 53, and the feeding rate can be adjusted by adjusting the rotation speed of the isolation sphere 53; more importantly, during this feeding process, the feed side 50 and the discharge side 52 of the feed pipe body always maintain airtightness, and the gas generated by the reaction in the reactor 1 will not flow back into the feeding loop; the wind force used to transport the raw materials in the feeding loop will not enter the reactor 1.

[0035] In general, the beneficial effects of the feeding device are mainly reflected in: the alternating filling and feeding of raw materials are achieved through the pits on the isolation sphere and the rotation of the isolation sphere, which not only ensures the continuity of feeding and the airtightness of the reaction process, but also greatly improves the degree of automation of the feeding process. At the same time, the rotating sealing structure of the pit and the spherical connection shell effectively blocks the connection between the feed side and the discharge side, ensuring the airtightness of the entire feeding process, and preventing the backflow of gas in the reactor and the intrusion of wind in the feeding circuit. In addition, by adjusting the rotation speed of the isolation sphere, combined with the volume of the pit on the isolation sphere, the feeding rate of the raw materials can be flexibly controlled to meet the needs of different reactions and improve the controllability and efficiency of the reaction process.

[0036] Furthermore, if Figure 4 As shown, the bottom of each pit 531 is connected to a vent 532 , and the opening of each pit 531 is covered with an elastic membrane 533 . Figure 4In order to illustrate the structural features, only the pit opening of the upward pit 531 is covered with the elastic membrane 533, and the elastic membrane 533 is removed from the pit opening of the front pit 531; The isolation sphere 53 has a cavity at its center, which is connected to the vent 532; The connecting shaft 55 is tubular, and the inside of the connecting shaft 55 is connected to the cavity at the center of the isolation sphere 53; Initially, the elastic membrane 533 is stretched into a plane, and when the gas in the pit 531 is sucked through the tubular space of the connecting shaft 55 , the elastic membrane 533 is recessed along with the pit 531 .

[0037] In the above embodiment, the elastic membrane 533 mainly functions to adjust the volume of the pit 531 , thereby controlling the effective release amount of the isolation sphere 53 in each rotation cycle.

[0038] Specifically, if gas or liquid is filled into the pit 531 (between the elastic membrane 533 and the pit wall), causing the elastic membrane 533 to bulge, and the degree of bulging is consistent with the arc shape of the spherical surface of the isolation sphere 53, then during the rotation of the isolation sphere 53, the pit 531 is equivalent to disappearing and cannot accommodate raw materials, which is equivalent to stopping the feeding without shutting down the rotating drive mechanism.

[0039] For another example, if the gas in the pit 531 is completely evacuated and the elastic membrane 533 is deformed inwardly to completely adhere to the pit 531, the effective accommodating space of the pit 531 can be maximized, and when the rotation speed of the isolation sphere 53 is constant, the maximum raw material delivery rate can be obtained.

[0040] By controlling the bulging degree of the elastic membrane 533, the feeding of the raw materials can be adjusted or even stopped without changing the rotation speed of the isolation sphere 53. In addition, the elastic membrane 533 has another function, which is to improve the feeding accuracy.

[0041] Specifically, if the material is contained and fed only by the concave pit 531 on the isolation sphere 53, the raw material may adhere to the concave pit 531 during continuous operation, which reduces the effective volume of the concave pit 531, and further causes the actual feeding to be less than the designed feeding during the reaction process, affecting the product of the production operation in the reactor. When the elastic membrane 533 is provided, when the concave pit 531 rotates to face downward, that is, in the same direction as the discharge side 52, the elastic membrane 533 can be vibrated by reciprocating the filling and discharging of gas into the concave pit 531, thereby "bouncing" the raw material in the concave pit 531 out, and preventing the raw material from sticking to the concave pit 531.

[0042] In summary, by controlling the bulging degree of the elastic membrane, the feeding device can flexibly adjust or stop the feeding of raw materials without changing the rotation speed of the isolation sphere, thereby enhancing the controllability of feeding. In addition, the design of the elastic membrane also significantly improves the accuracy of feeding, effectively solving the problem of insufficient feeding caused by raw material adhesion pits. When the pit rotates to the discharge side, the elastic membrane vibrates by filling and discharging gas, which can ensure that the raw materials are completely discharged, avoiding feeding errors caused by raw material residues, thereby ensuring the product quality and production efficiency of the production operation in the reactor.

[0043] This embodiment can be found in Figure 2 Each pit 531 is provided with an air pipe 54. After one end of the air pipe 54 is connected to the bottom of the pit 531, the other end passes through the cavity in the center of the isolation sphere 53 and the tubular space of the connecting shaft 55 in turn to reach the outside of the feeder 5 and is independently controlled by the pressure system.

[0044] The main effect of this embodiment is to achieve independent control of the volumes of the plurality of recesses 531, and the working conditions of the elastic membranes 533 in the respective recesses 531 can be independently controlled through the respective air pipes 54. Figure 2 In the state shown, at the same time, for the pit 531 located on the upper side, in order to accommodate the raw materials, the air pipe 54 should be evacuated so that the elastic membrane 533 is concave and closely attached to the pit wall of the pit 531; and for the pit 531 located on the lower side, in order to put all the raw materials out, the air pipe 54 should be inflated so that the elastic membrane 533 is convex and bulged outward, and even repeatedly evacuating and inflating the air to make the elastic membrane 533 concave and convex reciprocating, so as to eject all the raw materials and put them into the reactor to prevent adhesion.

[0045] In summary, this embodiment achieves independent control of the volume of multiple pits and the working state of the elastic membrane therein by equipping each pit with an independent air pipe and connecting it to an external pressure system. This design enables the flexibly adjusting of the containment and discharge state of each pit according to the needs during the feeding process to ensure the accurate feeding of raw materials. In particular, during the feeding stage, the elastic membrane vibrates back and forth through the inflation and exhaust operations of the air pipe, which effectively avoids the adhesion of raw materials, improves the completeness and accuracy of feeding, and thus ensures the stability of the production process and product quality.

[0046] This embodiment can be found in Figure 3-Figure 6 , the rotary drive mechanism includes a drive motor 56, a gear pair 57, a rotary support ring 58 and a support platform 59; The driven gear of the gear pair 57 is fixedly connected to the connecting shaft 55, and the driving gear of the gear pair 57 is fixedly connected to the output shaft of the driving motor 56; The connecting shaft 55 is provided with outer concave rings 551, the number of the outer concave rings 551 matches the number of the pits 531, and the outer concave rings 551 and the pits 531 are connected one by one through the air pipe 54; The inner side of the rotating support ring 58 is rotatably matched with the connecting shaft 55 and covers the outer concave ring 551, and the outer side of the rotating support ring 58 is fixedly supported by the support platform 59; An inner concave ring 584 is provided on the inner side of the rotating support ring 58. The number and position of the inner concave ring 584 correspond to the outer concave ring 551 to form concave ring spaces. The concave ring spaces are isolated from each other. On the outer side of the rotating support ring 58, air valve pipes 582 are provided in the areas corresponding to the concave ring spaces for connecting to the pressure system.

[0047] In the above embodiment, the rotary drive mechanism is used not only to control the rotation speed of the isolation sphere 53 and thus control the feeding rate, but also to facilitate the connection of the air pipe 54. Figure 5 In the special rotating support structure shown, during the rotation of the isolation sphere 53, the pit 531 and the air pipe 54 will rotate together, which makes it difficult to connect the air pipe 54 with the external air pressure equipment. In this embodiment, by utilizing the rotating matching relationship between the rotating support ring 58 and the connecting shaft 55, the rotating air pipe 54 connection port on the connecting shaft 55 is changed into the air valve pipe 582 fixed on the rotating support ring 58, so as to facilitate the connection with the external air pressure source.

[0048] This embodiment can be found in Figure 2 The shell of the spherical connection part 51 is made of transparent material. During the rotation of the isolation sphere 53, the pits 531 on the isolation sphere 53 are alternately connected with the feed side 50 and the discharge side 52 for loading and feeding, and the feeding rate is adjusted by the bulging and concave degree of the elastic membrane. After the shell of the spherical connection part 51 is made of transparent material, the rotation process of the isolation sphere 53 and the alternating loading and feeding process of the pits 531 on the isolation sphere 53 can be seen more intuitively, and when abnormalities occur in the feeding process, they can be discovered and handled as soon as possible.

[0049] For this example, please refer to Figure 7 , the material taker 3 includes a feed port 30, a discharge port 32, an air inlet 33 and a paddle 34; The feed port 30, the discharge port 32 and the air inlet 33 are connected to each other, and the paddle 34 is arranged inside the connection part close to the discharge port 32; An inclined baffle 31 is provided between the discharge port 32 and the air inlet 33 , and faces the discharge port 32 and the paddle 34 . The inclined baffle 31 divides the paddle 34 into two areas, one part of which is located on the side of the feed port 30 , and the other part is located on the side of the air inlet 33 .

[0050] In the above embodiment, the raw material can be particles or liquids, and the raw material is loaded on one side of the feed port 30. When gas is pumped from the air inlet 33 toward the discharge port 32, the gas drives or a motor drives the blade 34 to rotate, so that the raw material can be transported through the discharge port 32 together with the air flow. By cooperating with the feeder 5 at the feed port of the reactor, continuous raw material delivery and keeping the reaction environment of the reactor sealed can be effectively achieved.

[0051] In this example, the pits 531, the air pipe 54, the outer concave ring 551, the inner concave ring 584 and the air valve pipe 582 are four groups; on the isolation sphere 53, the pits 531 are evenly arranged in an array around the axis of the connecting shaft 55; on the connecting shaft 55, the outer concave ring 551 is arranged along the axis of the connecting shaft 55. The pits 531 are evenly arranged in an array around the axis of the connecting shaft 55, and the setting of four groups of pits 531 can maximize the feeding efficiency. This layout ensures that the material can enter the pits 531 evenly and quickly during the feeding process, effectively reducing the feeding interruption time and improving the continuity and efficiency of the overall production process. At the same time, combined with the synergistic effect of the air pipe 54, the outer concave ring 551, the inner concave ring 584 and the air valve pipe 582, the stability of the system and the accuracy of feeding are further enhanced, providing a strong guarantee for efficient production. The pit 531 can be designed to be conical. During the rotation of the isolation sphere 53, the conical pit 531 is convenient for loading and feeding.

[0052] This embodiment can be found in Figure 8 , and also includes a feed pipe 7, in which the raw materials are transported. The feed pipe 7 is located above the temporary storage bin 2 and delivers the raw materials to the temporary storage bin 2 through an auxiliary pipe; On the feeding pipe 4, a branch pipe 8 is further provided between the feeder 5 and the taker 3, the inlet of the branch pipe 8 is connected to the taker 3, the first outlet is downwardly connected to the feeder 5, the second outlet is upwardly connected to the conveying pipe 7 or connected to the feeder 4 to form a wind recovery loop between the taker 3 and the air pump 6, and a mesh screen is further provided on the second outlet side to block the material, the mesh screen can filter the raw materials, so that the raw materials are gathered on the side of the feed inlet of the feeder 5, and the wind used to transport the raw materials can flow back into the wind power loop; It also includes a heat management loop 9, which obtains wind power from the feed pipe 4, wraps around the reactor 1 for heat exchange, and then sends the wind power back to the feed pipe 4 or the conveying pipe 7. The reaction process of the reactor 1 may generate heat or absorb heat. By using the heat management loop 9, the wind can be used to exchange heat with the reactor.

[0053] The chemical raw material feeding and taking method adopts the above chemical raw material feeding and taking device, comprising the following steps: The air pump 6 starts to convey with wind power, the material taker 3 starts to discharge the material into the feeding pipe 4, and the wind pushes the material to the feeding side 50 of the feeder 5. Under the action of the branch pipe 8 and its mesh screen, the material falls to the feeding side 50 of the feeder 5, and the wind filters the material through the mesh screen and is recovered; During the rotation of the isolation sphere 53 of the feeder 5, the recess 531 of the isolation sphere 53 is alternately connected with the feed side 50 and the discharge side 52, so that the material is accommodated at the feed side 50 and poured out at the discharge side 52; The volume of the pit 531 is adjusted by sucking the fluid in the pit 531, and the rotation speed of the connecting shaft 55 is controlled to adjust the alternating speed of the pit 531 at the feeding side 50 and the discharging side 52, thereby controlling the speed of adding raw materials into the reactor 1. When the pit 531 faces the reactor, the gas in the pit 531 is repeatedly sucked, which can make the elastic mold of the mouth of the pit 531 repeatedly concave and convex to form vibration, so that all the raw materials are put into the reactor, preventing the raw materials from sticking to the pit 531, which will lead to low feeding efficiency and inaccurate feeding.

[0054] The present chemical raw material feeding and taking method, combined with a special device, realizes efficient automation of raw material transportation and feeding. The coordinated work of the air pump and the feeder ensures the stable transportation of the raw materials in the feeding pipe, and effectively separates the wind force and the raw materials through the mesh screen, thereby improving the resource utilization rate. The rotation of the isolation sphere and the alternating connection of the pits realize the continuous and closed feeding of the raw materials, significantly reduce the feeding interruption time, and ensure the closed reaction environment. At the same time, by adjusting the volume by sucking the fluid in the pit and combining the adjustment of the connecting shaft speed, the feeding speed of the raw materials can be accurately controlled to meet different production needs. In addition, the repeated suction of the gas in the pit causes the elastic membrane to vibrate, which effectively solves the problem of raw material adhesion and ensures the accuracy and efficiency of feeding. This method not only improves production efficiency, but also guarantees product quality, bringing significant benefits to chemical production.

[0055] In summary, the present invention effectively overcomes various shortcomings in the prior art, can produce beneficial technical effects, and has significant progress.

[0056] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A chemical raw material feeding and taking device, used for adding raw materials to a reaction kettle (1), characterized in that: include: A temporary storage bin (2), a material extractor (3), a material feeding pipe (4), a material feeder (5) and an air pump (6); The head end of the feeding pipe (4) is connected to the air pump (6) to obtain wind power, and the tail end is connected to the inside of the reaction kettle (1); The temporary storage bin (2) stores raw materials, and the material extractor (3) is connected between the temporary storage bin (2) and the feeding pipe (4) and feeds the raw materials into the feeding pipe (4); The feeder (5) is connected to the connection between the feed pipe (4) and the reaction kettle (1) to perform sealed feeding.

2. The chemical raw material feeding and taking device according to claim 1, characterized in that: The feeder (5) comprises a feed pipe body, an isolation sphere (53), a connecting shaft (55) and a rotation drive mechanism; The material pipe body comprises a feed side (50), a spherical connection part (51) and a discharge side (52), the feed side (50) being connected to the feed pipe (4), the discharge side (52) being connected to the reaction kettle (1), and the isolation sphere (53) being rotatably disposed in the cavity of the spherical connection part (51), and the rotation plane coincides with the axis of the material pipe body; One end of the connecting shaft (55) is fixedly connected to the side of the isolation sphere (53), and the other end passes through the outside of the spherical connecting part (51) and is driven by the rotation drive mechanism; At least one concave pit (531) is provided on the isolation sphere (53); during the rotation of the isolation sphere (53), the concave pit (531) is alternately connected to the feed side (50) and the discharge side (52).

3. The chemical raw material feeding and taking device according to claim 2, characterized in that: The bottom of each of the pits (531) is connected to a vent (532), and the opening of each of the pits (531) is covered with an elastic membrane (533); The isolation sphere (53) has a cavity at its center, and the cavity is in communication with the vent (532); The connecting shaft (55) is tubular, and the interior of the connecting shaft (55) is in communication with the cavity at the center of the isolation sphere (53); Initially, the elastic membrane (533) is stretched into a plane, and when the gas in the pit (531) is sucked through the tubular space of the connecting shaft (55), the elastic membrane (533) is recessed along with the pit (531).

4. The chemical raw material feeding and taking device according to claim 2, characterized in that: Each of the pits (531) is provided with an air pipe (54) corresponding thereto. One end of the air pipe (54) is connected to the bottom of the pit (531), and the other end of the air pipe (54) passes through the cavity at the center of the isolation sphere (53) and the tubular space of the connecting shaft (55) in sequence to reach the outside of the feeder (5) and is independently controlled by a pressure system.

5. The chemical raw material feeding and taking device according to claim 4, characterized in that: The rotary drive mechanism comprises a drive motor (56), a gear pair (57), a rotary support ring (58) and a support platform (59); The driven gear of the gear pair (57) is fixedly connected to the connecting shaft (55), and the driving gear of the gear pair (57) is fixedly connected to the output shaft of the driving motor (56); The connecting shaft (55) is provided with an outer concave ring (551), the number of the outer concave rings (551) matches the number of the concave pits (531), and the outer concave rings (551) and the concave pits (531) are connected one by one through the air pipe (54); The inner side of the rotating support ring (58) is rotatably matched with the connecting shaft (55) and covers the outer concave ring (551), and the outer side of the rotating support ring (58) is fixedly supported by the support platform (59); An inner concave ring (584) is provided on the inner side of the rotating support ring (58), and the number and position of the inner concave rings (584) correspond one-to-one with the outer concave ring (551) to form concave ring spaces, and the concave ring spaces are isolated from each other; On the outside of the rotating support ring (58), an air valve pipe (582) is provided in an area corresponding to each of the concave ring spaces for connecting to a pressure system.

6. The chemical raw material feeding and taking device according to claim 5, characterized in that: The shell of the spherical connecting part (51) is made of transparent material.

7. The chemical raw material feeding and taking device according to claim 1, characterized in that: The material extractor (3) comprises a material inlet (30), a material outlet (32), an air inlet (33) and a paddle (34); The feed port (30), the discharge port (32) and the air inlet (33) are connected to each other, and the paddle (34) is arranged inside the connection point and close to the discharge port (32); An oblique baffle (31) is provided between the material outlet (32) and the air inlet (33), the oblique baffle (31) facing the material outlet (32) and the paddle (34), and the oblique baffle (31) divides the paddle (34) into two areas, one part of which is located on one side of the material outlet (30) and the other part of which is located on one side of the air inlet (33).

8. The chemical raw material feeding and taking device according to claim 5, characterized in that: The concave pit (531), the air pipe (54), the outer concave ring (551), the inner concave ring (584) and the air valve pipe (582) are four groups; On the isolation sphere (53), the recesses (531) are evenly distributed in an array around the circumference of the axis of the connecting shaft (55); On the connecting shaft (55), the outer concave rings (551) are arranged in an array along the axis of the connecting shaft (55).

9. The chemical raw material feeding and taking device according to claim 5, characterized in that: It also includes a material delivery pipe (7), in which raw materials are delivered; the material delivery pipe (7) is located above the temporary storage bin (2) and delivers the raw materials into the temporary storage bin (2) through an auxiliary pipe; A branch pipe (8) is further provided on the feed pipe (4) between the feeder (5) and the taker (3); the inlet of the branch pipe (8) is connected to the taker (3); the first outlet is downwardly connected to the feeder (5); the second outlet is upwardly connected to the feed pipe (7) or connected to the taker (3) of the feed pipe (4) and the air pump (6) to form a wind recovery loop; a mesh screen is further provided on the second outlet side to block the material; It also comprises a heat management circuit (9), wherein the heat management circuit (9) obtains wind power from the feed pipe (4), winds around the reaction kettle (1) for heat exchange, and then sends the wind power back to the feed pipe (4) or the conveying pipe (7).

10. A method for feeding and extracting chemical raw materials, characterized in that: The chemical raw material feeding and taking device as claimed in claim 5 comprises the following steps: The air pump (6) starts to convey with wind power, the material taker (3) starts to discharge material into the feeding pipe (4), and the wind power pushes the raw material to the feeding side (50) of the feeder (5); During the rotation of the isolation sphere (53) of the feeder (5), the recess (531) of the isolation sphere (53) is alternately connected with the feed side (50) and the discharge side (52), so that the material is accommodated at the feed side (50) and discharged at the discharge side (52); The fluid in the pit (531) is sucked to adjust the volume of the pit (531), and the rotation speed of the connecting shaft (55) is controlled to adjust the alternating speed of the pit (531) at the feed side (50) and the discharge side (52), thereby controlling the speed of adding raw materials to the reactor (1).

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