Low-temperature reaction kettle for producing conductive silver paste

Abstract

The invention relates to the technical field of reaction kettles, in particular to a low-temperature reaction kettle for conductive silver paste production, which comprises a reaction kettle body, an overturning mixing mechanism and a cooling mechanism are arranged in the reaction kettle body, and a power mechanism is arranged at the top end of the reaction kettle body; the overturning and mixing mechanism comprises a stirring sleeve rotationally connected to the bottom of the inner wall of the reaction kettle body, a rotating shaft is arranged on the inner wall of the stirring sleeve and penetrates through the bottom end of the reaction kettle body, the rotating direction of the rotating shaft is opposite to that of the stirring sleeve, and two circular cavities are formed in the inner wall of the stirring sleeve; first bevel gears are fixedly connected to the positions, corresponding to the circular cavities, of the outer wall of the rotating shaft; according to the invention, the paste and the silver powder can be fully mixed, the mixing time is reduced, the crushing and aggregation of silver powder particles are avoided, the influence on the conductivity of the silver paste is reduced, the adhesive force of application is maintained, and the influence on the overall performance of subsequent products is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of reactors, and in particular to a low-temperature reactor for producing conductive silver paste. Background Art

[0002] Conductive silver paste refers to silver paste that is printed on a substrate (substrate) and has the ability to conduct current and eliminate accumulated static charges. Conductive silver paste is widely used in electronics, optoelectronics, solar energy and other fields due to its excellent conductivity and stability. For example, it can be used to make thick-film integrated circuits, resistors, capacitors, solar cell electrodes, LEDs and other electronic components and assemblies. The low-temperature reactor used in the production of conductive silver paste is a reaction equipment specially designed for the production process of conductive silver paste.

[0003] At present, when producing conductive silver paste in the prior art, the paste and silver powder need to be poured into a low-temperature reactor in sequence. When the silver powder is poured into the reactor, it will first fall on the top of the paste. Therefore, during the stirring process, the paste and silver powder on the top will be mixed, while the paste on the bottom can only mix less silver powder, which will cause stratification during mixing. Therefore, the paste and silver powder cannot be fully mixed, and the mixing time will be prolonged. Long-term stirring and mixing will cause the silver powder particles to break and aggregate. The breakage and aggregation of the silver powder particles will not only affect the conductivity of the silver paste, but also reduce its adhesion to the substrate. Insufficient adhesion may cause the silver paste to fall off or crack easily in subsequent applications, thereby affecting the overall performance of the product. In addition, when cooling the heat generated during stirring, cooling pipes are generally laid on the outer wall of the reactor, so that the cooling pipes can absorb the heat inside the reactor. However, the heat on the outside is mainly absorbed, resulting in a relatively high temperature on the inside, which will lead to a large temperature difference between the inside and the outside. This uneven temperature distribution will affect the physical and chemical properties of the silver powder and slurry, and may also cause the fluidity, dispersibility and stability of the silver powder and slurry to deteriorate during stirring. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a low-temperature reactor for producing conductive silver paste.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a low-temperature reactor for producing conductive silver paste, comprising a reactor body, a turning mixing mechanism and a cooling mechanism are arranged inside the reactor body, and a power mechanism is arranged at the top of the reactor body; The flip mixing mechanism comprises a stirring sleeve rotatably connected to the bottom of the inner wall of the reactor body, the inner wall of the stirring sleeve is provided with a rotating shaft and passes through the bottom end of the reactor body, the rotating shaft and the stirring sleeve have opposite rotation directions, the inner wall of the stirring sleeve is provided with two circular cavities, the outer wall of the rotating shaft corresponding to the circular cavities are fixedly connected with first bevel gears, the outer diameters of the two first bevel gears are meshed and connected with second bevel gears with opposite rotation directions on both sides, two groups of the second bevel gears are fixedly connected with transmission shafts at one end away from each other and rotate through the stirring sleeve, the axis center lines of the two groups of the transmission shafts are perpendicular to each other, and the two groups of the transmission shafts are fixedly connected with stirring blades for flipping the slurry and silver powder in the reactor body up and down at one end away from each other; The cooling mechanism includes a cooling plate fixedly connected to the outer wall of the stirring sleeve, and the number of the cooling plates is set in two groups. The two groups of cooling plates are used to cool the heat generated when the silver powder and the slurry are mixed. The two groups of cooling plates are pierced with a plurality of circular holes for the slurry and the silver powder mixture to pass through. The two groups of cooling plates are used to stir the slurry and the silver powder, and the bottom ends of the lower cooling plates are fixedly connected with scraping plates for shoveling the slurry at the bottom of the inner wall of the reactor body.

[0006] Preferably, the cooling mechanism also includes a first diversion chamber opened on the inner wall of the stirring sleeve, first inlet holes are provided on both sides of the inner wall of the first diversion chamber and extend to the upper part of the upper cooling plate, and an inlet groove is opened at the top of the rotating shaft, and a plurality of square holes are provided on the inner wall of the inlet groove, which are connected to the first diversion chamber.

[0007] Preferably, the cooling mechanism also includes a first collecting chamber opened on the inner wall of the stirring sleeve, first outflow holes are provided on both sides of the inner wall of the first collecting chamber and extend to the lower part of the upper cooling plate, a connecting groove is opened in the middle part of the rotating shaft, and a plurality of square holes are provided on the upper side of the inner wall of the connecting groove and are connected to the first collecting chamber.

[0008] Preferably, the cooling mechanism also includes a second diversion chamber opened on the inner wall of the stirring sleeve, and second inlet holes are provided on both sides of the inner wall of the second diversion chamber and extend to the upper part of the lower cooling plate, and a plurality of square holes are provided on the lower side of the inner wall of the connecting groove and are connected to the second diversion chamber.

[0009] Preferably, the cooling mechanism also includes a second collecting chamber opened on the inner wall of the stirring sleeve, second outflow holes are provided on both sides of the inner wall of the second collecting chamber and extend to the lower part of the lower cooling plate, an outflow groove is opened at the bottom end of the rotating shaft, a plurality of square holes are provided on the inner wall of the outflow groove and are connected to the second collecting chamber.

[0010] Preferably, the cooling mechanism also includes a fixing frame fixedly connected to the top of the reactor body, a connecting block is fixedly passed through the top of the fixing frame, the connecting block is rotatably connected to the rotating shaft, a connecting pipe is fixedly connected to the top of the connecting block, and the connecting pipe is fixedly connected to the fixing frame through a plate.

[0011] Preferably, the power mechanism includes a vertical plate fixedly connected to a side of the fixed frame corresponding to the top of the reactor body, a driving shaft rotatably penetrates the vertical plate, one end of the driving shaft is fixedly connected to a third bevel gear, and the first bevel gear and the second bevel gear are respectively meshed and connected on both sides of the outer diameter of the third bevel gear, the first bevel gear is fixedly connected to the stirring sleeve, and the second bevel gear is fixedly connected to the rotating shaft.

[0012] Preferably, one end of the vertical plate away from the third bevel gear is fixedly connected to a plurality of fixed shafts, the other ends of the plurality of fixed shafts are respectively fixedly connected to a circulation pipe and a fixed sleeve, the circulation pipe and the fixed sleeve are fixedly connected, the circulation pipe and the connecting pipe are fixedly connected, the outer wall of the drive shaft is fixedly connected to a plurality of arc-shaped fan blades corresponding to the inner wall of the fixed sleeve, and the other end of the circulation pipe is fixedly connected to a water inlet pipe.

[0013] Preferably, a feed pipe is fixedly passed through the other side of the fixing frame corresponding to the top of the reactor body, and a solenoid valve is fixedly connected to the bottom of the outer wall of the reactor body through a discharge pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By setting up the flip mixing mechanism, the upper and lower layers of slurry can be flipped and exchanged, so that the silver powder can be quickly filled in the entire reactor body, reducing the occurrence of stratification. Therefore, the slurry and silver powder can be fully mixed, reducing the mixing time, avoiding the breakage and aggregation of silver powder particles, reducing the impact on the conductivity of the silver paste, maintaining the adhesion of the application, and avoiding affecting the overall performance of subsequent products; By setting the cooling mechanism, the heat generated inside and outside can be absorbed and processed synchronously during the stirring process, so as to prevent a large temperature difference from occurring inside, avoid affecting the physical and chemical properties of the silver powder and the slurry, ensure the fluidity and stability of the silver powder and the slurry during the stirring process, and increase the contact area with the silver slurry, so as to quickly cool down, reduce the resistance of the cooling plate during the stirring process, and reduce the power consumption; By setting up the power mechanism, power can be generated by the flow of cooling water, thereby using a motor, reducing the production cost, and reducing the consumption of electric energy, saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of a low-temperature reaction kettle for producing conductive silver paste according to the present invention; Figure 2 A bottom view from another perspective of a low-temperature reaction kettle for producing conductive silver paste according to the present invention; Figure 3 This is a cross-sectional view of a reactor body of a low-temperature reactor for producing conductive silver paste according to the present invention; Figure 4 This is a diagram showing the internal structure of a low-temperature reactor for producing conductive silver paste according to the present invention; Figure 5 A cross-sectional view of a stirring sleeve and a cooling plate of a low-temperature reaction kettle for producing conductive silver paste according to the present invention; Figure 6 This is a cross-sectional view of a stirring sleeve and a rotating shaft of a low-temperature reaction kettle for producing conductive silver paste according to the present invention; Figure 7 It is a cross-sectional view of a flow pipe and a fixing sleeve of a low-temperature reaction kettle for producing conductive silver paste according to the present invention; Figure 8 The present invention is a structural diagram of a driving shaft of a low-temperature reactor for producing conductive silver paste.

[0016] In the figure: 1, reactor body; 2, fixing frame; 3, first bevel gear; 4, second bevel gear; 5, connecting block; 6, third bevel gear; 7, connecting pipe; 8, flow pipe; 9, fixing sleeve; 10, vertical plate; 11, solenoid valve; 12, feed pipe; 13, rotating shaft; 14, circular hole; 15, stirring sleeve; 16, scraping plate; 17, stirring blade; 18, cooling plate; 19, transmission shaft; 20, first bevel gear; 21, first inlet hole; 22 , the second bevel gear; 23, circular cavity; 24, the first outflow hole; 25, the second outflow hole; 26, the second inflow hole; 27, the inflow groove; 28, the first diversion chamber; 29, the square hole one; 30, the connecting groove; 31, the square hole two; 32, the second diversion chamber; 33, the outflow groove; 34, the second collecting chamber; 35, the square hole three; 36, the square hole four; 37, the first collecting chamber; 38, the arc-shaped fan blade; 39, the driving shaft; 40, the fixed shaft. DETAILED DESCRIPTION

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0018] like Figure 1-Figure 8A low-temperature reactor for producing conductive silver paste is shown, comprising a reactor body 1, wherein a turning mixing mechanism and a cooling mechanism are arranged inside the reactor body 1, and a power mechanism is arranged at the top of the reactor body 1. The turning mixing mechanism can make the silver powder and the paste mixed more evenly, and the cooling mechanism can quickly absorb the heat inside and outside to ensure that the temperature inside and outside is consistent. The power mechanism can avoid the use of a motor, thereby reducing the production cost and saving energy. like Figure 3-Figure 5 As shown, the flip mixing mechanism includes a stirring sleeve 15 rotatably connected to the bottom of the inner wall of the reactor body 1, a rotating shaft 13 is provided on the inner wall of the stirring sleeve 15 and passes through the bottom end of the reactor body 1, the rotating directions of the rotating shaft 13 and the stirring sleeve 15 are opposite, and two circular cavities 23 are provided on the inner wall of the stirring sleeve 15, and the positions of the outer wall of the rotating shaft 13 corresponding to the circular cavities 23 are fixedly connected with first bevel gears 20, and the two first bevel gears 20 are meshed and connected with second bevel gears 22 with opposite rotating directions on both sides of the outer diameter, and the two groups of second bevel gears 22 are fixedly connected with a transmission shaft 19 at one end away from each other and pass through the rotating stirring sleeve 15, the axis center lines of the two groups of transmission shafts 19 are perpendicular to each other, and the two groups of transmission shafts 19 are fixedly connected at one end away from each other with a stirring blade 17 for flipping the slurry and silver powder in the reactor body 1 up and down; like Figure 3-Figure 5 As shown, the cooling mechanism includes a cooling plate 18 fixedly connected to the outer wall of the stirring sleeve 15, and the number of cooling plates 18 is set in two groups. The two groups of cooling plates 18 are used to cool the heat generated when the silver powder and the slurry are mixed. The two groups of cooling plates 18 are pierced with a plurality of circular holes 14 for the slurry and the silver powder mixture to pass through. The two groups of cooling plates 18 are used to stir the slurry and the silver powder. The bottom end of the lower cooling plate 18 is fixedly connected to a scraping plate 16 for shoveling the slurry at the bottom of the inner wall of the reactor body 1.

[0019] like Figure 5 , Figure 6 As shown, the cooling mechanism also includes a first diverter chamber 28 opened on the inner wall of the stirring sleeve 15, and first inflow holes 21 are pierced on both sides of the inner wall of the first diverter chamber 28 and extend to the upper part of the upper cooling plate 18. A flow inlet groove 27 is opened at the top of the rotating shaft 13, and a plurality of square holes 29 are pierced on the inner wall of the flow inlet groove 27 and communicated with the first diverter chamber 28. The cooling water first enters the flow inlet groove 27, and flows into the first diverter chamber 28 through the square holes 29, and completes the diversion operation in the first diverter chamber 28, and then flows into the two cooling plates 18 on the upper side through the first inflow holes 21, and the heat generated by the stirring on the upper side is absorbed by the two cooling plates 18 on the upper side.

[0020] like Figure 5 , Figure 6As shown, the cooling mechanism also includes a first manifold 37 opened on the inner wall of the stirring sleeve 15, and first outflow holes 24 are pierced on both sides of the inner wall of the first manifold 37 and extend to the lower part of the upper cooling plate 18. A connecting groove 30 is opened in the middle of the rotating shaft 13, and a plurality of square holes 436 are pierced on the upper side of the inner wall of the connecting groove 30 and communicate with the first manifold 37. The cooling water flows into the first manifold 37 through the first outflow hole 24 at the lower part of the upper cooling plate 18, and flows into the connecting groove 30 through the square holes 436.

[0021] like Figure 5 , Figure 6 As shown, the cooling mechanism also includes a second diverter cavity 32 opened on the inner wall of the stirring sleeve 15, and second inflow holes 26 are pierced on both sides of the inner wall of the second diverter cavity 32 and extend to the upper part of the lower cooling plate 18, and a plurality of second square holes 31 are pierced on the lower side of the inner wall of the connecting groove 30 and communicate with the second diverter cavity 32. The cooling water flows into the second diverter cavity 32 through the second square holes 31 on the connecting groove 30, and the diversion operation is performed again, and the cooling water flows into the second inflow holes 26, so that it can flow into the lower cooling plate 18, and the heat of the lower side is absorbed by the lower cooling plate 18.

[0022] like Figure 5 , Figure 6 As shown, the cooling mechanism also includes a second manifold 34 opened on the inner wall of the stirring sleeve 15, and second outflow holes 25 are pierced on both sides of the inner wall of the second manifold 34 and extend to the lower part of the lower cooling plate 18. An outflow groove 33 is opened at the bottom of the rotating shaft 13, and a plurality of square holes 35 are pierced on the inner wall of the outflow groove 33 and communicate with the second manifold 34. The cooling water flows into the second manifold 34 through the second outflow hole 25 at the lower part of the lower cooling plate 18, and flows out through the outflow groove 33, and the outflowing cooling water is collected and recycled.

[0023] like Figure 1 , Figure 2 As shown, the cooling mechanism also includes a fixing frame 2 fixedly connected to the top of the reactor body 1, a connecting block 5 is fixedly passed through the top of the fixing frame 2, the connecting block 5 is rotatably connected to the rotating shaft 13, a connecting pipe 7 is fixedly connected to the top of the connecting block 5, and the connecting pipe 7 is fixedly connected to the fixing frame 2 through a plate. The connecting pipe 7 can be connected to the rotating shaft 13 through the connecting block 5 to ensure the circulation of cooling water.

[0024] like Figure 1 , Figure 7 , Figure 8As shown, the power mechanism includes a vertical plate 10 fixedly connected to the top of the reactor body 1 corresponding to one side of the fixed frame 2, and a driving shaft 39 is rotatably passed through the vertical plate 10, and a third bevel gear 6 is fixedly connected to one end of the driving shaft 39, and the first bevel gear 3 and the second bevel gear 4 are respectively meshed and connected on both sides of the outer diameter of the third bevel gear 6, the first bevel gear 3 and the stirring sleeve 15 are fixedly connected, and the second bevel gear 4 and the rotating shaft 13 are fixedly connected. The third bevel gear 6 is rotated by the driving shaft 39, thereby driving the first bevel gear 3 and the second bevel gear 4, and the first bevel gear 3 and the second bevel gear 4 have opposite rotation directions, so that the rotating shaft 13 and the stirring sleeve 15 have opposite rotation directions, and the driving shaft 39 is limited by the vertical plate 10.

[0025] like Figure 1 , Figure 3 , Figure 7 , Figure 8 As shown, one end of the vertical plate 10 away from the third bevel gear 6 is fixedly connected to a plurality of fixed shafts 40, and the other ends of the plurality of fixed shafts 40 are respectively fixedly connected to the circulation pipe 8 and the fixed sleeve 9, the circulation pipe 8 and the fixed sleeve 9 are fixedly connected, the circulation pipe 8 and the connecting pipe 7 are fixedly connected, and the outer wall of the driving shaft 39 corresponds to the inner wall of the fixed sleeve 9 and is fixedly connected to a plurality of arc-shaped blades 38, and the other end of the circulation pipe 8 is fixedly connected to the water inlet pipe. The circulation pipe 8 and the fixed sleeve 9 are limited by the fixed shaft 40, and the circulation pipe 8 and the fixed sleeve 9 are internally connected, and the cooling water entering through the water inlet pipe hits the arc-shaped blades 38, so that the driving shaft 39 rotates, thereby providing power.

[0026] like Figure 1 , Figure 2 As shown, a feed pipe 12 is fixedly passed through the other side of the fixing frame 2 corresponding to the top of the reactor body 1, and a solenoid valve 11 is fixedly connected to the bottom of the outer wall of the reactor body 1 through a discharge pipe. The cover plate on the feed pipe 12 can be removed, and the slurry and silver powder are poured into the reactor body 1 through the feed pipe 12, and then the cover plate is covered to seal it. After mixing, the solenoid valve 11 is opened to discharge the conductive silver slurry from the discharge pipe.

[0027] Working principle: First, open the cover plate on the feed pipe 12, and pour the slurry and silver powder into the reactor body 1 through the feed pipe 12. Then close the cover plate on the feed pipe 12, and then inject cooling water into the circulation pipe 8 through the water inlet pipe. The flow force of the cooling water acts on the arc-shaped fan blades 38 and drives the driving shaft 39 to rotate. Therefore, the rotation can be completed without using a motor, thereby saving production costs and energy. Further, the driving shaft 39 rotates with the third bevel gear 6, and the third bevel gear 6 rotates with the first bevel gear 3 and the second bevel gear 4 at the same time, and the first bevel gear 3 and the second bevel gear 4 rotate in opposite directions, so that the stirring sleeve 15 and the rotating shaft 13 rotate in opposite directions, and at this time, the second bevel gear 4 rotates with the rotating shaft 13, and the rotating shaft 13 rotates with the first bevel gear 20, and the first bevel gear 20 rotates with the second bevel gears 22 and the transmission shaft 19 on both sides, so that the stirring blade 17 can be rotated, so that the slurry and the silver powder are turned back and forth and mixed, thereby improving the mixing effect and mixing efficiency, at the same time, the first bevel gear 3 rotates with the stirring sleeve 15, so that the cooling plate 18 can be rotated, and the mixing effect is further improved, and the circular hole 14 on the cooling plate 18 allows the silver slurry to pass through, thereby reducing the resistance to stirring and reducing energy consumption; Furthermore, the cooling water in the circulation pipe 8 flows into the connecting pipe 7, then flows into the inflow groove 27 on the rotating shaft 13 through the connecting block 5, and enters the first diversion chamber 28 through the square hole 1 29, and is diverted in the first diversion chamber 28 and flows into the first inflow holes 21 on both sides respectively, and is led to the upper cooling plate 18, so that the cooling water fills the entire cooling plate 18, and then flows into the first manifold chamber 37 through the first outflow hole 24 at the bottom of the upper cooling plate 18, and flows into the second diversion chamber 32 through the square hole 4 36, the connecting groove 30 and the square hole 2 31, and is diverted again in the second diversion chamber 32, and flows through the second flow inlet 29. The cooling water flows into the top of the lower cooling plate 18 through the second outflow hole 25 of the lower cooling plate 18, and fills the interior of the lower cooling plate 18 with cooling water, and finally flows into the second collecting chamber 34 through the second outflow hole 25 of the lower cooling plate 18 to complete the collection, and then flows into the outflow groove 33 through the square hole three 35, and the heat generated by the stirring is quickly absorbed by the cooling plate 18 to prevent a large temperature difference between the inside and the outside, avoid affecting the physical and chemical properties of the silver powder and the slurry, ensure the fluidity and stability of the silver powder and the slurry during the stirring process, and can increase the contact area with the silver paste, so that the temperature can be quickly reduced. After mixing, the solenoid valve 11 is opened to allow the conductive silver paste to flow out.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A low-temperature reactor for producing conductive silver paste, comprising a reactor body (1), characterized in that: The reactor body (1) is provided with a turning mixing mechanism and a cooling mechanism inside, and a power mechanism is provided at the top of the reactor body (1); The overturning mixing mechanism comprises a stirring sleeve (15) rotatably connected to the bottom of the inner wall of the reactor body (1), the inner wall of the stirring sleeve (15) is provided with a rotating shaft (13) and passes through the bottom end of the reactor body (1), the rotating shaft (13) and the stirring sleeve (15) rotate in opposite directions, the inner wall of the stirring sleeve (15) is provided with two circular cavities (23), the outer wall of the rotating shaft (13) corresponding to the circular cavities (23) are fixedly connected with first bevel gears (20), the outer diameter sides of the two first bevel gears (20) are meshingly connected with second bevel gears (22) with opposite rotation directions, the two sets of the second bevel gears (22) are fixedly connected with a transmission shaft (19) at one end away from each other and rotatably pass through the stirring sleeve (15), the axis center lines of the two sets of the transmission shafts (19) are perpendicular to each other, and the two sets of the transmission shafts (19) are fixedly connected with a stirring blade (17) at one end away from each other for turning the slurry and silver powder in the reactor body (1) upside down; The cooling mechanism comprises a cooling plate (18) fixedly connected to the outer wall of the stirring sleeve (15), and the number of the cooling plates (18) is set to two groups. The two groups of cooling plates (18) are used to cool the heat generated when the silver powder and the slurry are mixed. The two groups of cooling plates (18) are pierced with a plurality of circular holes (14) for the slurry and the silver powder mixture to pass through. The two groups of cooling plates (18) are used to stir the slurry and the silver powder. The bottom ends of the lower cooling plates (18) are fixedly connected with scraping plates (16) for shoveling the slurry at the bottom of the inner wall of the reactor body (1).

2. The low-temperature reactor for producing conductive silver paste according to claim 1, characterized in that: The cooling mechanism further comprises a first diversion chamber (28) formed on the inner wall of the stirring sleeve (15), first inlet holes (21) are formed on both sides of the inner wall of the first diversion chamber (28) and extend to the upper part of the upper cooling plate (18), an inlet groove (27) is formed at the top of the rotating shaft (13), a plurality of square holes (29) are formed on the inner wall of the inlet groove (27) and are connected to the first diversion chamber (28).

3. The low-temperature reactor for producing conductive silver paste according to claim 2, characterized in that: The cooling mechanism also includes a first collecting chamber (37) formed on the inner wall of the stirring sleeve (15), first outflow holes (24) are formed on both sides of the inner wall of the first collecting chamber (37) and extend to the lower part of the upper cooling plate (18), a connecting groove (30) is formed in the middle of the rotating shaft (13), and a plurality of square holes (36) are formed on the upper side of the inner wall of the connecting groove (30) and are connected to the first collecting chamber (37).

4. The low-temperature reactor for producing conductive silver paste according to claim 3, characterized in that: The cooling mechanism further comprises a second flow diversion chamber (32) formed on the inner wall of the stirring sleeve (15), second flow inlet holes (26) being provided on both sides of the inner wall of the second flow diversion chamber (32) and extending to the upper part of the lower cooling plate (18), and a plurality of square holes (31) being provided on the lower side of the inner wall of the connecting groove (30) and communicating with the second flow diversion chamber (32).

5. The low-temperature reactor for producing conductive silver paste according to claim 4, characterized in that: The cooling mechanism also includes a second collecting chamber (34) formed on the inner wall of the stirring sleeve (15), second outflow holes (25) are formed on both sides of the inner wall of the second collecting chamber (34) and extend to the lower part of the lower cooling plate (18), an outflow groove (33) is formed at the bottom end of the rotating shaft (13), a plurality of square holes (35) are formed on the inner wall of the outflow groove (33) and are connected to the second collecting chamber (34).

6. The low-temperature reactor for producing conductive silver paste according to claim 1, characterized in that: The cooling mechanism further comprises a fixing frame (2) fixedly connected to the top of the reactor body (1); a connecting block (5) is fixedly passed through the top of the fixing frame (2); the connecting block (5) is rotatably connected to the rotating shaft (13); a connecting pipe (7) is fixedly connected to the top of the connecting block (5); and the connecting pipe (7) is fixedly connected to the fixing frame (2) via a plate.

7. The low-temperature reactor for producing conductive silver paste according to claim 1, characterized in that: The power mechanism comprises a vertical plate (10) fixedly connected to a side of a fixing frame (2) corresponding to the top of the reactor body (1); a driving shaft (39) rotatably penetrates the vertical plate (10); a third bevel gear (6) is fixedly connected to one end of the driving shaft (39); a first bevel gear (3) and a second bevel gear (4) are respectively meshed and connected on both sides of the outer diameter of the third bevel gear (6); the first bevel gear (3) and the stirring sleeve (15) are fixedly connected; and the second bevel gear (4) and the rotating shaft (13) are fixedly connected.

8. The low-temperature reactor for producing conductive silver paste according to claim 7, characterized in that: One end of the vertical plate (10) away from the third bevel gear (6) is fixedly connected to a plurality of fixed shafts (40), and the other ends of the plurality of fixed shafts (40) are respectively fixedly connected to a circulation pipe (8) and a fixed sleeve (9), the circulation pipe (8) and the fixed sleeve (9) are fixedly connected, the circulation pipe (8) and the connecting pipe (7) are fixedly connected, the outer wall of the driving shaft (39) corresponds to the inner wall of the fixed sleeve (9) and is fixedly connected to a plurality of arc-shaped blades (38), and the other end of the circulation pipe (8) is fixedly connected to a water inlet pipe.

9. The low-temperature reactor for producing conductive silver paste according to claim 1, characterized in that: A feed pipe (12) is fixedly passed through the other side of the fixing frame (2) corresponding to the top of the reactor body (1), and a solenoid valve (11) is fixedly connected to the bottom of the outer wall of the reactor body (1) via a discharge pipe.

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