A pre-replacement gas reactor charging device and a method of using the same

Abstract

The present application relates to a kind of pre-replaceable gas reaction kettle feeding device, belong to reaction kettle technical field.The reaction kettle body is positioned in the top of the reaction kettle body with feeding pipe and first pressure gauge;Vacuum pump is connected with the reaction kettle body by pipeline one;Gas storage tank and first gas pump, the gas storage tank is connected with the gas inlet end of first gas pump by pipeline two.It also discloses the use method.The present application adds material in the process of feeding tank to the reaction kettle body, by starting second gas pump, using the gas in the reaction kettle body to replace the air in temporary cavity, can avoid doping air when feeding, influence the quality of material reaction;While using U-shaped tube, it can also preliminarily replace the air in feeding cavity, not only save feeding time, but also save subsequent air volume, improve the practicability of the whole device.

Description

Technical Field

[0001] This invention belongs to the field of reaction vessel technology and relates to a reaction vessel feeding device that can pre-purify gas and its usage method. Background Technology

[0002] A reaction vessel is a container used for physical or chemical reactions, serving as the reaction medium for materials. Through structural design and parameter configuration, it can achieve the heating, evaporation, cooling, and low-speed mixing functions required by the process. Reactors are widely used in petroleum, chemical, rubber, pesticide, dye, pharmaceutical, and food industries. They are pressure vessels used to complete vulcanization, nitration, hydrogenation, alkylation, polymerization, condensation, and other processes.

[0003] Currently, most reactors are fed directly into the reactor via a feed pipe. However, in some fine chemical production reactions, it is necessary to pre-purify the air inside the reactor by introducing a protective reaction gas to achieve an oxygen-free and air-isolated reaction condition. Currently, air replacement inside the reactor is relatively simple, and two common methods are used: one is to evacuate the reactor and then introduce the gas to be reacted; the other is to first introduce the required gas, then close the inlet valve, and then open the exhaust valve, repeating this process several times until the gas inside the reactor is replaced. This method has certain requirements regarding the gas density. However, even after purging the gas in the reactor, external air can still enter during the feeding process, making it impossible to achieve sealed feeding. Furthermore, the material may be added in batches or continuously, leading to the entry of outside air during each feeding process, which seriously affects the reaction quality of the material. Even if the material is added to the reactor before gas purging, it is still impossible to guarantee that no other material will be added later, resulting in certain limitations in its use. Therefore, we propose a reactor feeding device with pre-purged gas and its usage method to solve the above-mentioned problems. Summary of the Invention

[0004] In view of this, in order to solve the problems of traditional reactors not having a separate device for pre-purging gas during the feeding process, which makes it easy for outside air to enter during the feeding process, affecting the reaction quality of the materials, and also having certain limitations in use, the present invention provides a reactor feeding device with pre-purged gas and its usage method.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including:

[0006] The reactor body has a feed pipe and a first pressure gauge at its top;

[0007] A vacuum pump is connected to the reactor body via a pipeline.

[0008] The gas storage tank and the first gas pump are provided. The gas storage tank is connected to the inlet end of the first gas pump through pipe two, and the outlet end of the first gas pump is connected to the reactor body through pipe three.

[0009] A feeding box, the bottom of which is connected to the top of a feeding pipe, and a feeding hopper is provided on the top of the feeding box, with a hopper cover hinged to the top of the feeding hopper;

[0010] Two sets of receiving mechanisms are symmetrically rotated inside the feeding box, dividing the inside of the feeding box from top to bottom into three enclosed independent spaces: a feeding chamber, a temporary storage chamber, and a discharging chamber, for temporary storage of materials and pre-purification of gas.

[0011] The second air pump has its air inlet connected to the feeding chamber via pipe four, and its air outlet connected to the temporary storage chamber via pipe five.

[0012] A U-shaped tube is fixedly installed on one side of the feeding box, with its two ends connected to the feeding chamber and the temporary storage chamber, respectively.

[0013] An exhaust hose is fixedly and continuously connected to the bucket cover for the discharge of exhaust gas. A one-way exhaust valve is installed on the exhaust hose.

[0014] Furthermore, solenoid valves are installed on the feeding pipe, pipe one, pipe two, U-shaped pipe, pipe four, and exhaust hose.

[0015] Furthermore, the two sets of receiving mechanisms include a first rotating rod and a second rotating rod that are symmetrically connected laterally inside the feeding box. The outer walls of the first rotating rod and the second rotating rod are respectively fixedly fitted with an upper receiving plate and a lower receiving plate, and the four edges of the upper receiving plate and the lower receiving plate are sealed and fitted to the four inner walls of the feeding box. One end of the first rotating rod and the second rotating rod extends to the outside of the feeding box and is respectively fixedly connected to a first motor and a second motor.

[0016] Furthermore, a second pressure gauge is provided on one side of the feeding box for detecting the air pressure inside the temporary storage chamber.

[0017] Furthermore, an oxygen content detector is provided on one side of the feeding box for detecting the oxygen content inside the temporary storage chamber.

[0018] Furthermore, both inner walls of the feeding box are provided with arc surfaces, and the two arc surfaces are respectively attached to the side of the upper receiving plate and the lower receiving plate away from the feeding end.

[0019] Furthermore, one side of the inner wall of the feeding box is provided with a slope one that cooperates with the upper receiving plate, and the bottom inner wall of the feeding box is provided with a slope two that cooperates with the lower receiving plate.

[0020] Furthermore, a protective cover is fixedly connected to one side of the outer wall of the feeding box, and both the first motor and the second motor are fixedly installed on the outer wall of the protective cover away from the feeding box. A fixing plate is fixedly connected horizontally inside the protective cover. Two sliding rods slide symmetrically through the top of the fixing plate. The top of the two sliding rods extends upward and is fixedly connected to the same card plate. The top of the card plate is provided with a toothed groove. An incomplete gear that engages with the toothed groove is fixedly sleeved on the outer wall of the first rotating rod. The bottom of the two sliding rods extends downward and is fixedly connected to the same push plate. A cam that abuts against the bottom of the push plate is fixedly sleeved on the outer wall of the second rotating rod. A return spring is sleeved on both sliding rods, and the two ends of the return spring are fixedly connected to the top of the fixing plate and the bottom of the card plate, respectively.

[0021] Furthermore, the end of the exhaust hose furthest from the bucket cover is connected to an exhaust gas treatment device.

[0022] A method for using a pre-purged gas feeding device for a reactor includes the following steps:

[0023] S1. First, the inside of the reactor body is evacuated using a vacuum pump;

[0024] S2. Then, the reaction gas in the gas storage tank is charged into the reactor body through the first gas pump, and the charging amount is controlled by the first pressure gauge.

[0025] S3. Next, open the hopper cover and add the required material into the feeding box through the feeding hopper. At this time, the material falls onto the upper receiving plate. Start the first motor to drive the upper receiving plate to rotate, so that the material falls onto the lower receiving plate. Then reset the upper receiving plate and add the required material again.

[0026] S4. Start the second gas pump to replace the gas in the middle storage chamber with the reaction gas in the reactor body, and to initially replace the gas in the upper feeding chamber through the U-tube.

[0027] S5. The oxygen content in the temporary storage chamber is monitored in real time using an oxygen content detector. When the oxygen content is zero, the gas in the temporary storage chamber is stopped from being replaced, and the second motor is started to drive the lower receiving plate to rotate, so that the material enters the reactor body through the feeding pipe to complete the feeding.

[0028] S6. During the gas replacement process, excess gas is discharged from the exhaust hose and finally enters the waste gas treatment equipment for treatment and discharge.

[0029] The beneficial effects of this invention are as follows:

[0030] 1. The pre-purified gas feeding device for a reactor disclosed in this invention involves feeding material into the feeding box and allowing it to fall onto the upper receiving plate. A first motor is then started to rotate the first rotating rod, simultaneously rotating the upper receiving plate counterclockwise. The material slides onto the lower receiving plate for temporary storage. The upper receiving plate is then rotated in the opposite direction to reset, and the feeding operation is repeated. After feeding, a second gas pump is started. The pre-purified gas inside the reactor enters the temporary storage chamber through the feeding chamber, replacing the air in the temporary storage chamber. The air then enters the feeding chamber through the U-shaped tube, initially replacing the upper air and reducing the oxygen concentration. Excess oxygen is discharged to the outside of the feeding box through the exhaust hose. After the oxygen in the temporary storage chamber is replaced, the second gas pump and the solenoid valve on the U-shaped tube are closed. The second motor is then started to rotate the second rotating rod, simultaneously rotating the lower receiving plate clockwise. The material falls and enters the reactor body through the feeding pipe, completing the feeding operation. After feeding, the lower receiving plate is rotated in the opposite direction to reset. At this time, the second gas pump is started again to refill the temporary storage chamber with gas from the reactor body. The gas pressure in the temporary storage chamber gradually increases and becomes greater than the gas pressure in the upper feeding chamber. During the subsequent feeding process, the first motor drives the upper receiving plate to rotate and discharge the material. Since the feeding chamber has already undergone preliminary ventilation, the oxygen content is not too high. In addition, the gas pressure in the temporary storage chamber is greater than that in the upper feeding chamber. During the feeding process, the gas in the temporary storage chamber will flow upward and prevent the oxygen above from flowing downward. Excess oxygen is discharged from the exhaust hose. When the material enters the temporary storage chamber, the oxygen content in the temporary storage chamber is even lower. Only appropriate ventilation is needed to meet the feeding requirements, which not only saves feeding time but also saves subsequent ventilation volume.

[0031] 2. The pre-purified gas-feeding device for a reactor disclosed in this invention, when the second motor is started to drive the lower receiving plate to rotate and discharge material, can simultaneously drive the cam to rotate clockwise and push the push plate to move upward. At the same time, the two slide rods drive the clamping plate to move upward and stretch the reset spring, which then engages with the incomplete gear through the tooth groove to limit the rotation of the first rotating rod. That is to say, when the second motor does not drive the lower receiving plate to rotate in the reverse direction to reset, starting the first motor at this time will not drive the first rotating rod to rotate, and therefore will not drive the upper receiving plate to rotate and discharge material. This effectively prevents misoperation and can prevent misoperation caused by the lower receiving plate not completing the discharge or forgetting to return to its original position. It also prevents external oxygen from entering the reactor body and affecting the reaction effect of the material.

[0032] In this invention, during the process of adding materials into the reactor body through the feeding box, the second gas pump is activated to replace the air in the temporary storage chamber with the gas inside the reactor body. This avoids the mixing of external air during feeding, which could affect the quality of the material reaction. At the same time, the U-shaped tube can also be used to pre-replace the air in the feeding chamber, which not only saves feeding time but also saves subsequent air exchange volume, thus improving the practicality of the entire device.

[0033] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0034] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0035] Figure 1 This is a schematic diagram of the connection structure between the reactor body and the vacuum pump proposed in this invention;

[0036] Figure 2 For the present invention Figure 1 A schematic diagram of the connection structure with an added gas storage tank;

[0037] Figure 3 For the present invention Figure 2 A schematic diagram of the connection structure with the feeding box added;

[0038] Figure 4 For the present invention Figure 3 A schematic diagram of the connection structure with a second gas pump added;

[0039] Figure 5 For the present invention Figure 4 A schematic diagram of the connection structure for incorporating waste gas treatment equipment;

[0040] Figure 6 This is a schematic diagram of the overall structure of the feeding box proposed in this invention;

[0041] Figure 7 This is a cross-sectional view of the overall structure of the feeding box proposed in this invention;

[0042] Figure 8 This is a further cross-sectional view of the overall structure of the feeding box proposed in this invention.

[0043] Attached reference numerals: 1. Reactor body; 2. Feed pipe; 3. First pressure gauge; 4. Vacuum pump; 5. Pipeline 1; 6. Gas storage tank; 7. Pipeline 2; 8. First gas pump; 9. Pipeline 3; 10. Feeding box; 11. Feeding hopper; 12. Hopper cover; 13. Second pressure gauge; 14. First rotating rod; 15. Upper receiving plate; 16. Inclined surface 1; 17. Second rotating rod; 18. Lower receiving plate; 19. Protective cover; 20. Not included. 21. Complete gear; 22. First motor; 23. Fixing plate; 24. Slide rod; 25. Clamping plate; 26. Gear groove; 27. Return spring; 28. Push plate; 29. ​​Cam; 30. Second motor; 31. Oxygen content detector; 32. U-shaped tube; 33. Arc surface; 34. Inclined surface II; 35. Second gas pump; 36. Pipeline IV; 37. Pipeline V; 38. Waste gas treatment equipment; 39. Exhaust hose; 30. Solenoid valve. Detailed Implementation

[0044] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0045] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0046] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0047] Example 1

[0048] like Figures 1-3As shown, a pre-purified gas-feeding device for a reactor includes a reactor body 1, a feeding pipe 2, a first pressure gauge 3, a vacuum pump 4, a first pipe 5, a gas storage tank 6, a second pipe 7, a first gas pump 8, a third pipe 9, a feeding box 10, a feeding hopper 11, and a hopper cover 12. The feeding pipe 2 and the first pressure gauge 3 are both located at the top of the reactor body 1. The vacuum pump 4 is connected to the reactor body 1 via the first pipe 5. The gas storage tank 6 is connected to the inlet of the first gas pump 8 via the second pipe 7. The outlet of the first gas pump 8 is connected to the reactor body 1 via the third pipe 9. The bottom of the feeding box 10 is connected to the top of the feeding pipe 2. The feeding hopper 11 is located at the top of the feeding box 10. The hopper cover 12 is hinged to the top of the feeding hopper 11 to close the feeding hopper 11.

[0049] like Figure 5 , Figure 8 As shown, the feeding device also includes two sets of receiving mechanisms symmetrically rotated inside the feeding box 10, as well as a U-shaped pipe 31, a second air pump 34, a fourth pipe 35, a fifth pipe 36, and an exhaust hose 38 used in conjunction with the two sets of receiving mechanisms. The two sets of receiving mechanisms divide the interior of the feeding box 10 into three closed independent spaces from top to bottom: a feeding chamber, a temporary storage chamber, and a discharging chamber. These spaces are used for the temporary storage of materials to achieve pre-replacement of gas. The air inlet of the second air pump 34 is connected to the discharging chamber through the fourth pipe 35, and its air outlet is connected to the temporary storage chamber through the fifth pipe 36. The U-shaped pipe 31 is fixedly installed on one side of the feeding box 10, with its two ends connected to the feeding chamber and the temporary storage chamber, respectively. The exhaust hose 38 is fixedly and continuously connected to the hopper cover 12 for the discharge of waste gas. A one-way exhaust valve is installed on the exhaust hose 38.

[0050] First, start the vacuum pump 4 to evacuate the reactor body 1 through pipe 5. During this process, the feeding chamber at the bottom of the feeding box 10 can be evacuated simultaneously through the feeding pipe 2. After completion, turn off the vacuum pump 4 and start the first gas pump 8 to inject the required reaction gas into the reactor body 1 through pipes 7 and 9. The reaction gas also enters the feeding chamber directly, and the amount of gas injected is determined by the first pressure gauge 3. Then, the required material is added into the reactor body 1 through the feeding box 10. After the material enters the feeding box 10, start the second gas pump 34 to replace the air in the temporary storage chamber with the gas in the reactor body 1. At the same time, the air in the feeding chamber is preliminarily replaced using the U-shaped pipe 31. The air in the feeding chamber is discharged to the outside of the feeding box 10 through the exhaust hose 38, so that no outside air is introduced when the material is discharged into the reactor body 1, which would affect the reaction of the material.

[0051] In this invention, such as Figure 5 , Figure 8As shown, the two sets of receiving mechanisms include a first rotating rod 14 and a second rotating rod 17 that are symmetrically connected laterally inside the feeding box 10. The outer walls of the first rotating rod 14 and the second rotating rod 17 are respectively fixedly fitted with an upper receiving plate 15 and a lower receiving plate 18, and the four edges of the upper receiving plate 15 and the lower receiving plate 18 are sealed and fitted to the four inner walls of the feeding box 10. One end of the first rotating rod 14 and the second rotating rod 17 extends to the outside of the feeding box 10 and is respectively fixedly connected to a first motor 21 and a second motor 29. First, open the hopper cover 12 to add the required material from the feeding hopper 11 into the feeding box 10. The material initially falls onto the upper receiving plate 15. After adding the material, close the hopper cover 12 to seal the feeding hopper 11. Start the first motor 21 to rotate the first rotating rod 14, simultaneously rotating the upper receiving plate 15 counterclockwise. The material then slides onto the lower receiving plate 18 for temporary storage. Then, rotate the upper receiving plate 15 in the opposite direction to reset it, and repeat the previous steps to add material again. In other words, there is material in both the feeding chamber and the temporary storage chamber at this time. It can be the same material in batches, or it can be other materials of different types; after the feeding is completed, the second gas pump 34 is started. At this time, the gas that has been pre-placing in the reactor body 1 will enter the temporary storage chamber through the feeding chamber to replace the air in the temporary storage chamber. The air will then enter the feeding chamber through the U-shaped pipe 31 to initially replace the air in the upper layer and reduce the oxygen concentration. Excess oxygen will be discharged to the outside of the feeding box 10 through the exhaust hose 38; after the oxygen in the temporary storage chamber is replaced, the second gas pump 34 and the upper part of the U-shaped pipe 31 are turned off. The solenoid valve 39 is activated, and the second motor 29 is started to drive the second rotating rod 17 to rotate, which in turn drives the lower receiving plate 18 to rotate clockwise. At this time, the material falls and enters the reactor body 1 through the feeding pipe 2, completing the feeding operation. After feeding, the lower receiving plate 18 is rotated in the opposite direction to reset. At this time, the second gas pump 34 is started again to refill the temporary storage chamber with gas from the reactor body 1. At this time, the gas pressure in the temporary storage chamber will gradually increase, and then exceed the gas pressure in the upper feeding chamber. Subsequently, the first motor 21 is started to drive the upper receiving plate 15 to rotate. During the feeding process, since the feeding chamber has already undergone preliminary ventilation, the oxygen content is not too high. In addition, the air pressure in the temporary storage chamber is greater than that in the upper feeding chamber. During the feeding process, the gas in the temporary storage chamber will flow upward and prevent the oxygen above from flowing downward. Excess oxygen will also be discharged out through the exhaust hose 38. When the material enters the temporary storage chamber, the oxygen content in the temporary storage chamber is even lower. Only appropriate ventilation is needed to meet the feeding requirements, which not only saves feeding time but also saves subsequent ventilation volume.

[0052] In this invention, such as Figure 8 As shown, a second pressure gauge 13 is provided on one side of the feeding box 10 for detecting the air pressure inside the temporary storage chamber. The second pressure gauge 13 can monitor the air pressure inside the temporary storage chamber in real time, which facilitates the control of the amount of gas supplied.

[0053] In this invention, such as Figure 8 As shown, an oxygen content detector 30 is provided on one side of the feeding box 10 to detect the oxygen content inside the temporary storage chamber. The oxygen content detector 30 can monitor the oxygen content in the temporary storage chamber in real time. When the oxygen content is zero, there is no need to change the air, which facilitates the operation judgment of the staff.

[0054] In this invention, such as Figure 5 As shown, solenoid valves 39 are installed on the feeding pipe 2, pipe 5, pipe 7, U-shaped pipe 31, pipe 35, and exhaust hose 38. The solenoid valves 39 facilitate the control of the feeding pipe 2, pipe 5, pipe 7, U-shaped pipe 31, pipe 35, and exhaust hose 38 to achieve different operations.

[0055] Example 2

[0056] This embodiment is a further improvement on the previous embodiment: such as Figure 8 As shown, both inner walls of the feeding box 10 are provided with arc surfaces 32, and the two arc surfaces 32 are respectively in contact with the side of the upper receiving plate 15 and the lower receiving plate 18 away from the material discharge end. Through the design of the arc surfaces 32, when the upper receiving plate 15 and the lower receiving plate 18 rotate, the side away from the material discharge end is always kept in contact with the inner wall of the feeding box 10, which facilitates the receiving and discharge of materials.

[0057] Example 3

[0058] This embodiment is a further improvement on the previous embodiment: such as Figure 8 As shown, the inner wall of one side of the feeding box 10 is provided with a slope 33 that cooperates with the upper receiving plate 15, and the inner wall of the bottom of the feeding box 10 is provided with a slope 16 that cooperates with the lower receiving plate 18. When the upper receiving plate 15 rotates to discharge material, the slope 33 allows the material to fall more easily onto the lower receiving plate 18. When the lower receiving plate 18 rotates to discharge material, the slope 16 allows the material to slide into the feeding pipe 2 and finally into the reactor body 1.

[0059] Example 4

[0060] This embodiment is a further improvement on the previous embodiment: such as Figures 6-7As shown, a protective cover 19 is fixedly connected to one side of the outer wall of the feeding box 10, and the first motor 21 and the second motor 29 are both fixedly installed on the outer wall of the protective cover 19 away from the feeding box 10. A fixing plate 22 is fixedly connected horizontally inside the protective cover 19. Two sliding rods 23 slide symmetrically through the top of the fixing plate 22. The top of the two sliding rods 23 extends upward and is fixedly connected to the same card plate 24. The top of the card plate 24 is provided with a toothed groove 25. An incomplete gear 20 that engages with the toothed groove 25 is fixedly sleeved on the outer wall of the first rotating rod 14. The bottom ends of the two sliding rods 23 extend downward and are fixedly connected to the same push plate 27. The outer wall of the second rotating rod 17 is fixedly sleeved with a cam 28 that abuts against the bottom of the push plate 27. A return spring 26 is sleeved on both sliding rods 23, and the two ends of the return spring 26 are fixedly connected to the top of the fixing plate 22 and the bottom of the card plate 24, respectively. When the second motor 29 is started to drive the lower receiving plate 18 to rotate and discharge material, it can simultaneously drive the cam 28 to rotate clockwise and push the push plate 27 to move upward. At the same time, the two slide rods 23 drive the clamping plate 24 to move upward and stretch the reset spring 26. Then, through the tooth groove 25, it engages with the incomplete gear 20 to limit the rotation of the first rotating rod 14. That is to say, when the second motor 29 does not drive the lower receiving plate 18 to rotate in the opposite direction to reset, the first motor 21 cannot drive the first rotating rod 14 to rotate, and therefore will not drive the upper receiving plate 15 to rotate and discharge material. This can prevent misoperation and effectively prevent misoperation when the lower receiving plate 18 has not finished discharging material or has been forgotten to return to its original position. It also prevents external oxygen from entering the reactor body 1 and affecting the reaction effect of the material.

[0061] Example 5

[0062] This embodiment is a further improvement on the previous embodiment: such as Figure 5 As shown, the end of the exhaust hose 38 furthest from the hopper cover 12 is connected to a waste gas treatment device 37. If materials need to be added to the reactor body 1 during the reaction, on the one hand, some harmful gases may be generated during the reaction. If these harmful gases are used to replace the gases and then directly discharged to the outside, it will inevitably damage the surrounding environment. On the other hand, because the temperature inside the reactor body 1 is high, the temperature of the reaction gases inside is also high. At this time, gas replacement via the second gas pump 34 will cause the high-temperature gases to react chemically with the oxygen in the ambient air that has just entered, which may produce some harmful gases. In this case, the waste gas treatment device 37 can be used to treat the harmful gases in the waste gas before discharge. The specific reaction gases introduced and the harmful gases generated after reacting with oxygen in the air can be configured with appropriate waste gas treatment devices 37 according to the actual production process; no specific limitations are made here.

[0063] A method for using a pre-purged gas feeding device for a reactor includes the following steps:

[0064] S1. First, the interior of the reactor body 1 is evacuated using vacuum pump 4;

[0065] S2. Then, the reaction gas in the gas storage tank 6 is charged into the reaction vessel body 1 by the first gas pump 8, and the charging amount is controlled by the first pressure gauge 3.

[0066] S3. Next, open the hopper cover 12 and add the required material into the feeding box 10 through the feeding hopper 11. At this time, the material falls onto the upper receiving plate 15. Start the first motor 21 to drive the upper receiving plate 15 to rotate, so that the material falls onto the lower receiving plate 18. Then reset the upper receiving plate 15 and add the required material again.

[0067] S4. Start the second gas pump 34 to replace the gas in the middle storage chamber with the reaction gas in the reactor body 1, and to replace the gas in the upper feeding chamber with the U-shaped tube 31.

[0068] S5. The oxygen content in the temporary storage chamber is detected in real time by the oxygen content detector 30. When the oxygen content is zero, the gas in the temporary storage chamber is stopped from being replaced, and the second motor 29 is started to drive the lower receiving plate 18 to rotate, so that the material enters the reactor body 1 along the feeding pipe 2 to complete the feeding.

[0069] S6. During the gas replacement process, excess gas is discharged from the exhaust hose 38 and finally enters the waste gas treatment equipment 37 for treatment and discharge.

[0070] However, as is well known to those skilled in the art, the working principles and wiring methods of the vacuum pump 4, the first gas pump 8, the first motor 21, the second motor 29, the oxygen content detector 30, the second gas pump 34, the waste gas treatment equipment 37, and the solenoid valve 39 are commonplace and belong to conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A pre-purified gas feeding device for a reactor, characterized in that, include: The reactor body (1) is provided with a feed pipe (2) and a first pressure gauge (3) at the top. The vacuum pump (4) is connected to the reactor body (1) via pipe 1 (5); The gas storage tank (6) and the first gas pump (8) are connected to the inlet end of the first gas pump (8) through the second pipe (7), and the outlet end of the first gas pump (8) is connected to the reactor body (1) through the third pipe (9). The bottom of the feeding box (10) is connected to the top of the feeding pipe (2). The top of the feeding box (10) is provided with a feeding hopper (11), and the top of the feeding hopper (11) is hinged with a hopper cover (12). Two sets of receiving mechanisms are symmetrically rotated inside the feeding box (10), and the inside of the feeding box (10) is divided from top to bottom into three closed independent spaces: feeding chamber, temporary storage chamber and discharging chamber, for temporary storage of materials to realize pre-replacement of gas; The second air pump (34) has its air inlet end connected to the material discharge chamber through pipe four (35), and its air outlet end connected to the temporary storage chamber through pipe five (36). A U-shaped tube (31) is fixedly installed on one side of the feeding box (10), with its two ends connected to the feeding chamber and the temporary storage chamber respectively; An exhaust hose (38) is fixedly connected to the hopper cover (12) for the discharge of exhaust gas. A one-way exhaust valve is installed on the exhaust hose (38). Solenoid valves (39) are installed on the feeding pipe (2), pipe one (5), pipe two (7), U-shaped pipe (31), pipe four (35) and exhaust hose (38). The two sets of receiving mechanisms include a first rotating rod (14) and a second rotating rod (17) that are symmetrically connected to the inside of the feeding box (10) in a horizontal rotation. The first rotating rod (14) and the second rotating rod (17) are connected in a horizontal rotation. The outer wall of the rod (17) is fixedly fitted with an upper receiving plate (15) and a lower receiving plate (18), and the four edges of the upper receiving plate (15) and the lower receiving plate (18) are sealed and fitted with the four inner walls of the feeding box (10). One end of the first rotating rod (14) and the second rotating rod (17) extends to the outside of the feeding box (10) and is fixedly connected with the first motor (21) and the second motor (29). A second pressure gauge (13) for detecting the air pressure inside the temporary storage chamber is provided on one side of the feeding box (10).

2. The pre-purified gas feeding device for a reactor as described in claim 1, characterized in that, An oxygen content detector (30) for detecting the oxygen content inside the temporary storage chamber is provided on one side of the feeding box (10).

3. The pre-purified gas feeding device for a reactor as described in claim 2, characterized in that, The inner walls of both sides of the feeding box (10) are provided with arc surfaces (32), and the two arc surfaces (32) are respectively attached to the side of the upper receiving plate (15) and the lower receiving plate (18) away from the feeding end.

4. The pre-purified gas feeding device for a reactor as described in claim 3, characterized in that, The inner wall of one side of the feeding box (10) is provided with a slope one (33) that works in conjunction with the upper receiving plate (15), and the inner wall of the bottom of the feeding box (10) is provided with a slope two (16) that works in conjunction with the lower receiving plate (18).

5. The pre-purified gas feeding device for a reactor as described in claim 4, characterized in that, A protective cover (19) is fixedly connected to one side of the outer wall of the feeding box (10), and the first motor (21) and the second motor (29) are both fixedly installed on the outer wall of the protective cover (19) away from the feeding box (10). A fixing plate (22) is fixedly connected horizontally inside the protective cover (19). Two sliding rods (23) slide symmetrically through the top of the fixing plate (22). The tops of the two sliding rods (23) extend upward and are fixedly connected to the same card plate (24). The top of the card plate (24) is provided with a toothed groove. 25), the outer wall of the first rotating rod (14) is fixedly fitted with an incomplete gear (20) that engages with the tooth groove (25), the bottom ends of the two slide rods (23) extend downward and are fixedly connected to the same push plate (27), the outer wall of the second rotating rod (17) is fixedly fitted with a cam (28) that abuts against the bottom of the push plate (27), and the two slide rods (23) are fitted with a return spring (26), and the two ends of the return spring (26) are fixedly connected to the top of the fixed plate (22) and the bottom of the clamping plate (24) respectively.

6. The pre-purified gas feeding device for a reactor as described in claim 5, characterized in that, The exhaust hose (38) is connected to a waste gas treatment device (37) at the end away from the bucket cover (12).

7. The method of using the pre-purified gas feeding device for a reactor according to claim 6, characterized in that, Includes the following steps: S1. First, the inside of the reactor body (1) is evacuated by vacuum pump (4); S2. Then, the reaction gas in the gas storage tank (6) is charged into the reactor body (1) by the first gas pump (8), and the charging amount is controlled by the first pressure gauge (3). S3. Next, open the hopper cover (12) and add the required material into the feeding box (10) through the feeding hopper (11). At this time, the material falls onto the upper receiving plate (15). Start the first motor (21) to drive the upper receiving plate (15) to rotate, so that the material falls onto the lower receiving plate (18). Then reset the upper receiving plate (15) and add the required material again. S4. Start the second gas pump (34) to replace the gas in the middle storage chamber with the reaction gas in the reactor body (1), and replace the gas in the upper feeding chamber with the U-tube (31). S5. Use an oxygen content detector (30) to detect the oxygen content in the temporary storage chamber in real time. When the oxygen content is zero, stop replacing the gas in the temporary storage chamber and start the second motor (29) to drive the lower receiving plate (18) to rotate, so that the material enters the reactor body (1) along the feeding pipe (2) to complete the feeding. S6. During the gas replacement process, excess gas is discharged from the exhaust hose (38) and finally enters the waste gas treatment equipment (37) for treatment and discharge.

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