Air-blowing composite flow field reaction equipment for preparing silver-coated copper powder

Abstract

The present invention relates to the technical field of copper powder preparation, and specifically to an air-blowing composite flow field reaction device for preparing silver-coated copper powder, comprising a double-layer glass reactor, a blowing pipe is installed at the top of the double-layer glass reactor, a connecting gas cylinder is installed at the side end of the blowing pipe, a stirring shaft is rotatably installed at the top of the inner part of the double-layer glass reactor, a multi-blade vibrating stirring paddle is fixedly installed at the bottom end of the stirring shaft, a constant temperature water bath device is fixedly installed at the bottom end of the side end of the double-layer glass reactor, and the double-layer glass reactor also includes a cleaning device, a closing device and a synchronization device, the cleaning device is fixedly installed at the top of the double-layer glass reactor, the closing device is fixedly installed at the bottom of the synchronization device, and the cleaning device includes a driving motor, a winding wheel and a connecting rope. Through the arrangement of the blowing pipe, the connecting gas cylinder, the cleaning device, the closing device and the synchronization device, the purpose of uniformly coating the silver-coated copper powder and quickly cleaning the inner wall of the silver-coated copper powder air-blowing composite flow field reaction device is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of copper powder preparation, in particular to an air-blowing composite flow field reaction device for preparing silver-coated copper powder. Background Art

[0002] Silver-coated copper powder is a powder material consisting of a layer of silver metal coated on the surface of copper particles. It combines the electrical conductivity of copper with the excellent electrical conductivity, thermal conductivity and chemical stability of silver, becoming an important metal composite material.

[0003] Air-blown composite flow field reaction equipment is a device that combines the principles of airflow blowing and flow field reaction. It is widely used in many fields, including but not limited to material processing, chemical reaction, environmental governance, etc. Air-blown composite flow field reaction equipment mainly forms a specific flow field environment in the reaction chamber through the action of airflow, thereby promoting or controlling chemical reactions, physical changes or material processing. The functions of airflow include stirring, mixing, mass transfer, heat transfer, etc., which help to improve reaction efficiency, improve product quality or achieve specific process goals.

[0004] In the prior art, an invention patent with publication number CN118527095A discloses a reaction device for copper powder processing, and its classification number is B01J. The reaction device includes a mounting frame, on which a reactor for carrying copper powder reaction is arranged, and a feed pipe for establishing a feed channel is installed on the reactor. A feed buffer is arranged inside the reactor, and a diffuser arranged opposite to the buffer for increasing the scattering area of ​​the reaction raw materials in the reactor. The reactor includes a reactor body and a reaction cavity formed in the reactor body. Based on the enclosure range of the reactor body, the upper end of the reaction cavity is connected to establish a feed channel connected to or divided from the outside, and the feed channel and the reaction cavity are divided by a dividing strip arranged on the reactor body. The feed buffer is installed at the lower end of the dividing strip and extends obliquely toward the bottom of the reaction cavity. Another announcement number CN218795802U discloses an integrated device for preparing ultrafine silver-coated copper powder, with a classification number of B01J, which belongs to the field of silver-coated copper powder production equipment. The device includes a kettle body and a separate kettle bottom arranged at the bottom of the kettle body, and an annular sealing ring is arranged at the connection between the bottom end of the kettle body and the separate kettle bottom. The cavity formed by the kettle body and the separate kettle bottom is a reaction chamber, and an air pressure regulating tube, a pressure gauge, a copper slurry feed pipe, a main salt solution feed pipe and a temperature sensor are arranged on the top of the kettle body. The temperature sensor is vertically inserted in the kettle body, a stirring system is arranged in the kettle body, a pH sensor is arranged at the bottom of the kettle body, a microporous filter element is arranged along the inner wall of the separate kettle bottom, and the gap between the microporous filter element and the inner wall of the separate kettle bottom is a collecting chamber, and a liquid outlet pipe connected to the collecting chamber is arranged in the center of the separate kettle bottom, and an air inlet pipe connected to the collecting chamber is arranged on the separate kettle bottom, and the air inlet pipe is located on one side of the liquid outlet pipe.

[0005] At present, when the silver-coated copper powder air-blowing composite flow field reaction equipment on the market is in use, the powder will be deposited at the bottom of the reactor, so that the silver-coated copper powder cannot be coated evenly. In addition, when the silver-coated copper powder air-blowing composite flow field reaction equipment is in use, since the reactor cannot be disassembled, a large amount of powder will accumulate on the inner wall of the reactor. The existing cleaning method is to add a large amount of clean water and then discharge it, which consumes a large amount of clean water and has a low cleaning efficiency. As a result, the existing silver-coated copper powder air-blowing composite flow field reaction equipment cannot perform the functions of uniformly coating the silver-coated copper powder and quickly cleaning the inner wall. Therefore, a device is needed to improve the above problems. Summary of the invention

[0006] In view of the problems in the prior art, the present invention provides an air-blowing composite flow field reaction device for preparing silver-coated copper powder.

[0007] The technical solution adopted by the present invention to solve its technical problems is: an air-blowing composite flow field reaction equipment for preparing silver-coated copper powder, comprising a double-layer glass reactor, a blowing pipe is installed at the top of the double-layer glass reactor, a connecting gas cylinder is installed at the side end of the blowing pipe, a stirring shaft is rotatably installed at the top of the inner top of the double-layer glass reactor, a multi-blade vibrating stirring paddle is fixedly installed at the bottom end of the stirring shaft, and a constant temperature water bath device is fixedly installed at the bottom of the side end of the double-layer glass reactor.

[0008] Specifically, the double-layer glass reactor further comprises a cleaning device, a closing device and a synchronization device, wherein the cleaning device is fixedly mounted on the top of the double-layer glass reactor, the closing device is fixedly mounted on the bottom of the synchronization device, the cleaning device comprises a driving motor, a winding wheel and a connecting rope, the winding wheel is fixedly mounted on the side end center of the driving motor, the connecting rope is fixedly mounted on the outer ring of the winding wheel, a displacement disc is mounted on the bottom end of the connecting rope, a hose is symmetrically fixedly mounted on the top of the displacement disc, a metal pipe is mounted on the top of the hose, six second nozzles are fixedly mounted on the bottom end of the displacement disc, and the second nozzles are distributed in an annular manner, a third nozzle is fixedly mounted on the inner side of the second nozzle, and the third nozzle is distributed in an annular manner, a first nozzle is fixedly mounted on the outer ring of the displacement disc, and the first nozzle is located above the second nozzle;

[0009] When the displacement plate is displaced, the first nozzle, the second nozzle and the third nozzle can be driven to displace respectively on the inner wall of the double-layer glass reactor, the outer ring of the blowing pipe and the outer ring surface of the stirring shaft.

[0010] Specifically, the closing device includes a positioning piece, an extension rod and a closing cover, the extension rod is fixedly mounted at both ends of the bottom of the closing cover, the positioning piece is fixedly mounted on the top of the extension rod, two hydraulic cylinders are fixedly mounted on the bottom of the closing cover, the hydraulic cylinders are located on the inner side of the bottom of the extension rod, first racks are fixedly mounted on both sides of the bottom of the closing cover, and a first sealing ring is fixedly mounted on the outer ring surface of the closing cover;

[0011] When the hydraulic cylinder is started, the closing cover and the bottom end of the double-layer glass reactor can be driven away, so that the first rack can pass through the outer ring surface of the gear.

[0012] Specifically, the synchronization device includes a bottom side frame, a first button switch, a second button switch and a guide rod, the guide rod is symmetrically fixedly installed on the bottom ends of both sides of the double-layer glass reactor, the bottom end of the outer ring of the double-layer glass reactor is fixedly installed with a second sealing ring, and the second sealing ring is located above the guide rod, the bottom side frame is fixedly installed at the bottom of both ends of the double-layer glass reactor, the second button switch and the first button switch are respectively fixedly installed on the top of both ends of the double-layer glass reactor close to the bottom side frame, and the first button switch is located above the second button switch, a collar is slidably sleeved on the outer ring of the guide rod, a positioning sleeve is fixedly installed on the bottom end of the collar, and an extension pipe is symmetrically fixedly installed on the side end of the positioning sleeve away from the double-layer glass reactor, a gear is rotatably installed on the inner bottom end of the bottom side frame, an extension frame is fixedly installed on the bottom end of the positioning sleeve away from the double-layer glass reactor, and a second rack is fixedly installed on one end of the extension frame close to the gear;

[0013] When the gear rotates, it can drive the second rack to move, so that the alignment sleeve can fit with the double-layer glass reactor and the closing cover.

[0014] Specifically, the metal pipe is installed on the top of the double-layer glass reactor, the drive motor is symmetrically fixedly installed on the top of the double-layer glass reactor, and the hydraulic cylinder is fixedly installed on the inner bottom end of the bottom side frame close to the gear.

[0015] Specifically, a circular hole is opened inside the displacement plate, and the air blowing pipe is fitted with the inner wall of the circular hole. A protective ring is fixedly installed at the top center of the displacement plate, and the outer ring surface of the displacement plate is fitted with the inner wall surface of the double-layer glass reactor.

[0016] Specifically, the interior of the alignment ferrule is hollow, and an alignment groove is provided on the inner surface of the alignment ferrule close to the second sealing ring, and the extension pipe is communicated with the alignment ferrule.

[0017] Specifically, a through hole is opened at the center of the top of the displacement disk, and the through hole is located at the outer ring of the stirring shaft, and the outer ring surface of the first nozzle is spaced 3 cm from the outer ring surface of the displacement disk.

[0018] Specifically, the third nozzle, the second nozzle, the first nozzle and the hose are interconnected, the alignment sheet is vertically aligned with the first button switch and the second button switch, and the first rack is meshed with the side end of the gear away from the alignment sleeve.

[0019] Specifically, the second rack is meshed with the gear, a slide groove is provided on the inner center of the bottom side frame away from the double-layer glass reactor, and the first button switch and the second button switch are both electrically connected to the drive motor.

[0020] Beneficial effects of the present invention:

[0021] First, the present invention is connected to an external driving device through a stirring shaft, so that when the stirring shaft rotates, it can drive the multi-blade vibrating stirring paddle to rotate at the inner bottom end of the double-layer glass reactor. At the same time, the bottom end of the blowing pipe is close to the inner bottom end of the double-layer glass reactor, so that when the connected gas cylinder is started, gas can be supplied to the inner bottom end of the double-layer glass reactor through the blowing pipe, so that the gas can drive the powder deposited at the inner bottom end of the double-layer glass reactor to flip upward, which is convenient for the multi-blade vibrating stirring paddle to evenly coat the silver-coated copper powder, thereby completing the work of evenly coating the silver-coated copper powder.

[0022] Secondly, when the present invention is started, the driving motor can drive the displacement plate to move up and down inside the double-layer glass reactor, so that the displacement plate can scrape off the powder on the inner wall of the double-layer glass reactor. At the same time, the alignment plate can trigger and start the external water valve, so that the stirring shaft, the blowing pipe and the inner wall of the double-layer glass reactor can be sprayed with water for cleaning, thereby improving the cleaning efficiency. In addition, the double-layer glass reactor and the closing cover are arranged separately, so that when the closing cover is separated from the double-layer glass reactor, the alignment sleeve can be driven to move until the double-layer glass reactor and the closing cover are fitted, so that the sewage can be diverted, thereby completing the cleaning of the inside of the double-layer glass reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0025] Figure 2 It is a top view schematic diagram of the main body in the present invention;

[0026] Figure 3 is a schematic diagram of a multi-blade vibrating stirring paddle in the present invention;

[0027] Figure 4It is a schematic diagram of the three-dimensional structure from the front perspective of the second embodiment of the double-layer glass reactor of the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the cleaning device of the present invention from the front perspective;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the cleaning device of the present invention from the bottom perspective;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the sealing device of the present invention from the front perspective;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the sealing device of the present invention from the bottom perspective;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the synchronization device in the present invention from the front perspective;

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the synchronization device in the present invention from the bottom perspective.

[0034] In the figure: 1-connecting gas cylinder, 2-blowing pipeline, 3-constant temperature water bath device, 4-multi-blade vibration stirring paddle, 5-double-layer glass reactor, 6-stirring shaft, 7-cleaning device, 8-closing device, 9-synchronizing device, 10-driving motor, 11-connecting rope, 12-winding wheel, 13-metal pipe, 14-hose, 15-displacement disk, 16-first nozzle, 17-second nozzle, 18-third nozzle, 19-alignment sheet, 20-closing cover, 21-extension rod, 22-hydraulic cylinder, 23-first rack, 24-first sealing ring, 25-ring, 26-bottom side frame, 27-extension pipeline, 28-alignment sleeve, 29-guide rod, 30-second sealing ring, 31-first button switch, 32-second button switch, 33-gear, 34-extension frame, 35-second rack. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0036] The present invention is further described below in conjunction with the accompanying drawings.

[0037] Example 1

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, an air-blowing composite flow field reaction equipment for preparing silver-coated copper powder of the present invention comprises a double-layer glass reactor 5, a blowing pipe 2 is installed at the top of the double-layer glass reactor 5, a connecting gas cylinder 1 is installed at the side end of the blowing pipe 2, a stirring shaft 6 is rotatably installed at the top of the inner part of the double-layer glass reactor 5, a multi-blade vibrating stirring paddle 4 is fixedly installed at the bottom end of the stirring shaft 6, and a constant temperature water bath device 3 is fixedly installed at the bottom of the side end of the double-layer glass reactor 5.

[0039] The working principle of Example 1 is as follows: when in use, step 1: pickling the spherical copper powder, add 40 mL of concentrated sulfuric acid to 460 mL of deionized water to prepare a dilute sulfuric acid solution, add the prepared dilute sulfuric acid solution to a double-layer glass reactor 5, put 100 kg of spherical copper powder into the double-layer glass reactor 5, blow nitrogen at a rate of 150 mL / min, use a multi-blade vibrating stirring paddle 4 with a vibration frequency of 100 Hz to quickly stir for 40 minutes, filter and wash until the filtrate is neutral, step 2: disperse the spherical copper powder, add 5 kg of dispersant to 50 kg of deionized water, and prepare Add the dispersant solution to the pickled copper powder, vibrate and stir for 20 minutes, filter and wash until the filtrate is neutral, step 3: prepare silver-coated copper powder, add 3kg of silver nitrate to 30kg of deionized water, add 4kg of ammonia water to make the solution clear and transparent, turn on the constant temperature water bath device 3, drop the solution into the dispersed copper powder at a certain rate, filter and wash at least three times, add 1kg of glucose to 30kg of deionized water, slowly add the prepared solution to the above copper powder, filter and wash, and reduce it to obtain evenly coated spherical silver-coated copper powder, and finally the silver-coated copper powder can be dried to complete the work.

[0040] Example 2

[0041] On the basis of Example 1, Figure 4 , Figure 5 and Figure 6As shown, the double-layer glass reactor 5 also includes a cleaning device 7, a closing device 8 and a synchronization device 9. The cleaning device 7 is fixedly installed at the top of the double-layer glass reactor 5, and the closing device 8 is fixedly installed at the bottom of the synchronization device 9. The cleaning device 7 includes a driving motor 10, a winding wheel 12 and a connecting rope 11. The winding wheel 12 is fixedly installed at the side end center of the driving motor 10, and the connecting rope 11 is fixedly installed on the outer ring of the winding wheel 12. A displacement disk 15 is installed at the bottom end of the connecting rope 11, and a hose 14 is symmetrically fixedly installed at the top of the displacement disk 15. A metal pipe 13 is installed at the top of the hose 14. Six second nozzles 17 are fixedly installed at the bottom of the double-layer glass reactor 5, and the second nozzles 17 are distributed in a ring shape. A third nozzle 18 is fixedly installed on the inner side of the second nozzle 17, and the third nozzle 18 is distributed in a ring shape. A first nozzle 16 is fixedly installed on the outer ring of the displacement disk 15, and the first nozzle 16 is located above the second nozzle 17. The inner wall of the double-layer glass reactor 5, the outer ring of the air blowing pipe 2 and the outer ring of the stirring shaft 6 can be wetted in advance through the first nozzle 16, the second nozzle 17 and the third nozzle 18, so that the powder can be washed and the displacement disk 15 can clean the air blowing pipe 2 and the double-layer glass reactor 5.

[0042] When the displacement plate 15 is displaced, it can drive the first nozzle 16 , the second nozzle 17 and the third nozzle 18 to displace on the inner wall of the double-layer glass reactor 5 , the outer ring of the blowing pipe 2 and the outer ring surface of the stirring shaft 6 respectively.

[0043] like Figure 7 and Figure 8 The closing device 8 includes a positioning piece 19, an extension rod 21 and a closing cover 20. The extension rod 21 is fixedly mounted at both ends of the bottom of the closing cover 20. The positioning piece 19 is fixedly mounted on the top of the extension rod 21. Two hydraulic cylinders 22 are fixedly mounted on the bottom of the closing cover 20. The hydraulic cylinder 22 is located on the inner side of the bottom end of the extension rod 21. First racks 23 are fixedly mounted on both sides of the bottom of the closing cover 20. A first sealing ring 24 is fixedly mounted on the outer ring surface of the closing cover 20. A plastic gasket is fixedly mounted on the outer ring of the bottom end of the double-layer glass reactor 5, so that when the closing cover 20 is fastened to the bottom end of the double-layer glass reactor 5, the liquid inside the double-layer glass reactor 5 is prevented from flowing out.

[0044] When the hydraulic cylinder 22 is activated, the closing cover 20 can be driven away from the bottom end of the double-layer glass reactor 5 , so that the first rack 23 can pass through the outer ring surface of the gear 33 .

[0045] like Fig. 9 and Fig.10The synchronization device 9 includes a bottom side frame 26, a first button switch 31, a second button switch 32 and a guide rod 29. The guide rod 29 is symmetrically fixedly installed at the bottom ends of both sides of the double-layer glass reactor 5. The second sealing ring 30 is fixedly installed at the bottom end of the outer ring of the double-layer glass reactor 5, and the second sealing ring 30 is located above the guide rod 29. The bottom side frame 26 is fixedly installed at the bottom of both ends of the double-layer glass reactor 5. The second button switch 32 and the first button switch 31 are respectively fixedly installed at the top of both ends of the double-layer glass reactor 5 close to the bottom side frame 26, and the first button switch 31 is located above the second button switch 32. On the outer ring of the guide rod 29, a collar 25 is slidably sleeved, and a positioning sleeve 28 is fixedly installed at the bottom end of the collar 25. An extension pipe 27 is symmetrically fixedly installed on the side end of the positioning sleeve 28 away from the double-layer glass reactor 5. A gear 33 is rotatably installed on the inner bottom end of the bottom side frame 26. An extension frame 34 is fixedly installed on the bottom end of the positioning sleeve 28 away from the double-layer glass reactor 5. A second rack 35 is fixedly installed on one end of the extension frame 34 close to the gear 33. A base hole is opened on the top of the double-layer glass reactor 5, so that the connecting rope 11 can pass through the double-layer glass reactor 5 to pull the displacement plate 15 to move;

[0046] When the gear 33 rotates, it can drive the second rack 35 to move, so that the alignment sleeve 28 can fit with the double-layer glass reactor 5 and the closing cover 20.

[0047] The metal pipe 13 is installed on the top of the double-layer glass reactor 5, the driving motor 10 is symmetrically fixedly installed on the top of the double-layer glass reactor 5, the hydraulic cylinder 22 is fixedly installed on the bottom end of the bottom side frame 26 near the inner bottom end of the gear 33, the displacement plate 15 is provided with a circular hole inside, and the blowing pipe 2 is fitted with the inner wall of the circular hole, a protective ring is fixedly installed at the top center of the displacement plate 15, the outer ring surface of the displacement plate 15 is fitted with the inner wall surface of the double-layer glass reactor 5, the interior of the alignment sleeve 28 is set in a hollow state, and the alignment sleeve 28 is provided with an alignment groove on the inner side surface near the second sealing ring 30, the extension pipe 27 is communicated with the alignment sleeve 28, and the alignment sleeve 28 is provided with a positioning groove. A through hole is provided at the center of the top of the displacement plate 15, and the through hole is located on the outer ring of the stirring shaft 6. The outer ring surface of the first nozzle 16 is 3 cm apart from the outer ring surface of the displacement plate 15. The third nozzle 18, the second nozzle 17, the first nozzle 16 and the hose 14 are interconnected. The alignment sheet 19 is vertically aligned with the first button switch 31 and the second button switch 32. The first rack 23 is meshed with the side end of the gear 33 away from the alignment sleeve 28, and the second rack 35 is meshed with the gear 33. A slide groove is provided on the bottom side frame 26 away from the inner center of the double-layer glass reactor 5. The first button switch 31 and the second button switch 32 are both electrically connected to the drive motor 10.

[0048] When the present embodiment is implemented, when the inside of the double-layer glass reactor 5 needs to be cleaned, the materials inside the double-layer glass reactor 5 can be discharged in advance, and then the hydraulic cylinder 22 can be started to drive the closing cover 20 to move downward, so that the closing cover 20 can be separated from the double-layer glass reactor 5, and when the closing cover 20 moves downward, the extension rod 21 and the alignment piece 19 can be driven to move downward at the same time, and the extension rod 21 moves in the slide groove inside the bottom side frame 26, so that the closing cover 20 can be ensured to move up and down along a straight line, and the docking accuracy between the closing cover 20 and the double-layer glass reactor 5 is improved. Subsequently, when the closing cover 20 moves downward, the extension rod 21 can drive the first rack 23 to move downward at the same time, and the first rack 23 is meshed with the gear 33, so that the first rack 23 is engaged ... When the rack 23 passes through the gear 33, the gear 33 can be driven to rotate, so that the second rack 35 can drive the alignment sleeve 28 to move toward one end close to the double-layer glass reactor 5. Subsequently, when the hydraulic cylinder 22 drives the closing cover 20 to move downward to the limit position, the alignment sleeve 28 can be driven to fit the double-layer glass reactor 5 and the outer ring surface of the closing cover 20 that has dropped to the limit position. In addition, the closing cover 20 can also drive the alignment piece 19 to move downward to contact with the second button switch 32 through the extension rod 21. The second button switch 32 is a forward circuit, and the second button switch 32 is electrically connected to the drive motor 10, so that when the drive motor 10 is started, the winding wheel 12 can be driven to rotate clockwise, thereby releasing the connecting rope 11. At this time, the displacement disk 15 will move along the The blowing pipe 2 slides downward, and is connected to an external water valve through the metal pipe 13, the water valve can be opened, so that water can flow into the first nozzle 16, the second nozzle 17 and the third nozzle 18 through the metal pipe 13, and the second nozzle 17, the third nozzle 18 and the first nozzle 16 are respectively aligned with the blowing pipe 2, the stirring shaft 6 and the inner wall of the double-layer glass reactor 5, so that water can be sprayed onto the blowing pipe 2, the stirring shaft 6 and the outer ring of the double-layer glass reactor 5 to wet them in advance, and the top of the outer ring of the displacement plate 15 fits with the inner wall of the double-layer glass reactor 5, so that when the displacement plate 15 is in the downward position, the powder on the inner wall of the double-layer glass reactor 5 can be scraped off, and when the displacement plate 15 is displaced, it can drive the round hole on the displacement plate 15 to move in the blowing pipe 2, the stirring shaft 6 and the inner wall of the double-layer glass reactor 5. The air pipe 2 is displaced upward, so that the powder on the air blowing pipe 2 can be scraped off. At the same time, the alignment sleeve 28 is fitted with the outer ring surface of the double-layer glass reactor 5 and the closing cover 20, so that the sewage can flow into the interior of the alignment sleeve 28, and is connected to the external negative pressure device through the extension pipe 27, so that the negative pressure device can drain the sewage inside the alignment sleeve 28 through the extension pipe 27, and complete the work of quickly cleaning the inside of the double-layer glass reactor 5. Subsequently, when the inside of the double-layer glass reactor 5 is cleaned, the negative pressure device and the water valve can be closed respectively, and then the hydraulic cylinder 22 is started to drive the closing cover 20 to move upward to fit with the bottom end of the double-layer glass reactor 5, so that the bottom end of the double-layer glass reactor 5 can be closed, which is convenient for the preparation of powder again.At the same time, when the closing cover 20 moves upward, the first rack 23 can be driven to pass through the outer ring surface of the gear 33 again, so that the gear 33 can drive the second rack 35 to a position away from one end of the double-layer glass reactor 5, so that the alignment sleeve 28 can be separated from the closing cover 20 and the double-layer glass reactor 5, and the sleeve ring 25 is slidably sleeved on the guide rod 29, so that the alignment sleeve 28 can be supported to move in a straight line to prevent the alignment sleeve 28 from falling off, and when the closing cover 20 moves upward to the limit position, the alignment sheet 19 can also be driven to contact the first button switch 31, and the first button switch 31 is used as a reset circuit, so that the first button switch When the switch 31 is triggered, the driving motor 10 can drive the reel 12 to rotate counterclockwise, drive the connecting rope 11 to pull the displacement disk 15 upward, so that the displacement disk 15 is reset upward. When the displacement disk 15 moves upward, the hose 14 can be bent and placed on the top of the displacement disk 15. The protective ring at the top center of the displacement disk 15 can prevent the hose 14 from falling into the inner center of the displacement disk 15 when bent and placed. The driving motor 10 is connected to the external worm gear reducer, so that the reel 12 has a self-locking performance, so that the displacement disk 15 can be easily suspended at the inner top of the double-layer glass reactor 5 to prevent the displacement disk 15 from falling.

[0049] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An air-blowing composite flow field reaction device for preparing silver-coated copper powder, comprising a double-layer glass reactor (5), characterized in that: The top of the double-layer glass reactor (5) is provided with an air blowing pipe (2), the side end of the air blowing pipe (2) is provided with a connecting gas cylinder (1), the top of the interior of the double-layer glass reactor (5) is rotatably provided with a stirring shaft (6), the bottom end of the stirring shaft (6) is fixedly provided with a multi-blade vibrating stirring paddle (4), and the bottom end of the side end of the double-layer glass reactor (5) is fixedly provided with a constant temperature water bath device (3); The double-layer glass reactor (5) further comprises a cleaning device (7), a closing device (8) and a synchronizing device (9), wherein the cleaning device (7) is fixedly mounted on the top end of the double-layer glass reactor (5), and the closing device (8) is fixedly mounted on the bottom end of the synchronizing device (9); The closing device (8) comprises a positioning plate (19), an extension rod (21) and a closing cover (20), wherein the extension rod (21) is fixedly mounted at both ends of the bottom of the closing cover (20), the positioning plate (19) is fixedly mounted at the top of the extension rod (21), two hydraulic cylinders (22) are fixedly mounted at the bottom of the closing cover (20), the hydraulic cylinders (22) are located on the inner side of the bottom of the extension rod (21), first racks (23) are fixedly mounted on both sides of the bottom of the closing cover (20), and a first sealing ring (24) is fixedly mounted on the outer surface of the closing cover (20); When the hydraulic cylinder (22) is activated, it can drive the closing cover (20) and the bottom end of the double-layer glass reactor (5) to move away from each other, so that the first rack (23) can pass through the outer ring surface of the gear (33); The synchronization device (9) comprises a bottom side frame (26), a first button switch (31), a second button switch (32) and a guide rod (29); the guide rod (29) is symmetrically fixedly mounted on the bottom ends of both sides of the double-layer glass reactor (5); a second sealing ring (30) is fixedly mounted on the bottom end of the outer ring of the double-layer glass reactor (5), and the second sealing ring (30) is located above the guide rod (29); the bottom side frame (26) is fixedly mounted on the bottom ends of both ends of the double-layer glass reactor (5); the second button switch (32) and the first button switch (31) are respectively fixedly mounted on both ends of the double-layer glass reactor (5) near the bottom side frame (26). The first button switch (31) is located above the second button switch (32); a collar (25) is slidably sleeved on the outer ring of the guide rod (29); a positioning sleeve (28) is fixedly mounted on the bottom end of the collar (25); an extension pipe (27) is symmetrically fixedly mounted on the side end of the positioning sleeve (28) away from the double-layer glass reactor (5); a gear (33) is rotatably mounted on the inner bottom end of the bottom side frame (26); an extension frame (34) is fixedly mounted on the bottom end of the positioning sleeve (28) away from the double-layer glass reactor (5); and a second rack (35) is fixedly mounted on one end of the extension frame (34) close to the gear (33); When the gear (33) rotates, it can drive the second rack (35) to move, so that the alignment sleeve (28) can fit with the double-layer glass reactor (5) and the sealing cover (20).

2. The air-blowing composite flow field reaction equipment for preparing silver-coated copper powder according to claim 1, characterized in that: The cleaning device (7) comprises a driving motor (10), a reel (12) and a connecting rope (11), wherein the reel (12) is fixedly mounted at the center of the side end of the driving motor (10), the connecting rope (11) is fixedly mounted on the outer ring of the reel (12), a displacement disc (15) is mounted at the bottom end of the connecting rope (11), a hose (14) is symmetrically fixedly mounted at the top end of the displacement disc (15), a metal pipe (13) is mounted at the top end of the hose (14), six second nozzles (17) are fixedly mounted at the bottom end of the displacement disc (15), and the second nozzles (17) are distributed in an annular manner, a third nozzle (18) is fixedly mounted on the inner side of the second nozzle (17), and the third nozzle (18) is distributed in an annular manner, and a first nozzle (16) is fixedly mounted on the outer ring of the displacement disc (15), and the first nozzle (16) is located above the second nozzle (17); When the displacement plate (15) is displaced, it can drive the first nozzle (16), the second nozzle (17) and the third nozzle (18) to respectively displace on the inner wall of the double-layer glass reactor (5), the outer ring of the blowing pipe (2) and the outer ring surface of the stirring shaft (6).

3. The air-blowing composite flow field reaction equipment for preparing silver-coated copper powder according to claim 2, characterized in that: The metal pipe (13) is installed on the top of the double-layer glass reactor (5), the drive motor (10) is symmetrically fixedly installed on the top of the double-layer glass reactor (5), and the hydraulic cylinder (22) is fixedly installed on the inner bottom end of the bottom side frame (26) close to the gear (33).

4. The air-blowing composite flow field reaction equipment for preparing silver-coated copper powder according to claim 3, characterized in that: A circular hole is formed inside the displacement plate (15), and the air blowing pipe (2) fits the inner wall of the circular hole. A protective ring is fixedly mounted at the top center of the displacement plate (15), and the outer ring surface of the displacement plate (15) fits the inner wall surface of the double-layer glass reactor (5).

5. The air-blowing composite flow field reaction equipment for preparing silver-coated copper powder according to claim 4, characterized in that: The interior of the alignment sleeve (28) is in a hollow state, and an alignment groove is provided on the inner surface of the alignment sleeve (28) close to the second sealing ring (30), and the extension pipe (27) is in communication with the alignment sleeve (28).

6. The air-blowing composite flow field reaction equipment for preparing silver-coated copper powder according to claim 5, characterized in that: A through hole is provided at the center of the top of the displacement disk (15), and the through hole is located on the outer ring of the stirring shaft (6). The outer ring surface of the first nozzle (16) and the outer ring surface of the displacement disk (15) are spaced 3 centimeters apart.

7. The air-blowing composite flow field reaction equipment for preparing silver-coated copper powder according to claim 6, characterized in that: The third nozzle (18), the second nozzle (17), the first nozzle (16) and the hose (14) are interconnected, the alignment sheet (19) is vertically aligned with the first button switch (31) and the second button switch (32), and the first rack (23) is meshed with the side end of the gear (33) away from the alignment sleeve (28).

8. The air-blowing composite flow field reaction equipment for preparing silver-coated copper powder according to claim 7, characterized in that: The second rack (35) is meshed with the gear (33), a slide groove is provided on the bottom side frame (26) away from the inner center of the double-layer glass reactor (5), and the first button switch (31) and the second button switch (32) are both electrically connected to the drive motor (10).

Images