Full-automatic reaction kettle for chemical synthesis

Abstract

The invention relates to the technical field of reaction kettles, in particular to a full-automatic reaction kettle for chemical synthesis, which comprises a kettle body, a kettle cover, a driving assembly, a stirring rod I, a one-way valve I, an air pump, an exhaust pipe, a pumping mechanism, a spiral blade and a driving mechanism, the stirring rod I is hollow and is arranged at the lower end of the stirring shaft, the one-way valve I is arranged on the side wall of the stirring rod I and is communicated with the interior of the stirring rod I, and the air pump is arranged outside the kettle cover. According to the invention, hot air at the upper part in the reaction kettle is circularly pumped, so that the temperature at different height positions in the reaction kettle tends to be balanced, accumulation of added auxiliary reagents is avoided, viscosity difference of rubber raw materials at different height positions is reduced, and the mixing efficiency of the rubber raw materials and the auxiliary reagents is effectively ensured.

Description

Technical Field

[0001] The invention relates to the technical field of reactors, in particular to a fully automatic reactor for chemical synthesis. Background Art

[0002] The fully automatic reactor is an analytical instrument used in the basic disciplines of engineering and technology science. It provides a carrier for chemical reactions, realizes the stirring conditions required for chemical reactions, and visually monitors parameters such as temperature during the reaction. The feeding methods of the fully automatic reactor usually include dumping feeding method and negative pressure drainage method. After the materials are added in the above two methods, the materials will be concentrated in a certain position inside the reactor. This feeding method limits the mixing rate of the two materials.

[0003] In view of the above problems, there are good solutions in the prior art, such as a rubber production stirring reactor and a method for producing rubber from tar with patent number CN118454622B. The auxiliary reagent enters different positions of the stirring raw material from each feeding port through the reciprocating movement of the vertical stirring rod 1, and can react more evenly with the rubber production raw material, effectively improving the mixing rate of the auxiliary reagent and the rubber production raw material. However, there are still the following problems: since the rubber raw material is accumulated inside the reactor, as the stirring process proceeds, the viscosity of the rubber raw material itself will increase. For example, the viscosity of natural rubber increases greatly during the stirring process, which will cause the intermolecular force of the rubber raw material itself to increase, and then increase the friction heat generation during the stirring process. The heat generated will float to the upper part of the reactor due to density, resulting in the temperature above the reactor being greater than the temperature below. The temperature rise will cause the viscosity of the rubber raw material to decrease. The accumulation of rubber raw materials and the temperature inside the reactor will cause the viscosity of the rubber raw materials at different heights inside the reactor to be different, which will still have a negative impact on the mixing efficiency of the auxiliary reagents and rubber raw materials added later at different heights.

[0004] Therefore, in order to solve the above problems, a fully automatic reaction kettle for chemical synthesis is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a fully automatic reactor for chemical synthesis, which solves the problem that the viscosity of rubber raw materials at different heights inside the reactor is different, which affects the mixing efficiency of rubber raw materials and auxiliary reagents. By circulating the hot air flow above the reactor, the temperature at different heights inside the reactor tends to be balanced, avoiding the accumulation of added auxiliary reagents, reducing the viscosity difference of rubber raw materials at different heights, and effectively ensuring the mixing efficiency of rubber raw materials and auxiliary reagents.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A fully automatic reaction kettle for chemical synthesis comprises a kettle body, a kettle cover and a driving assembly, wherein the driving assembly is arranged on the kettle cover and is connected with a stirring shaft penetrating into the kettle body, and further comprises a stirring rod, a one-way valve, an air pump, an exhaust pipe, a pumping mechanism, a spiral blade and a driving mechanism, wherein the stirring rod is hollow and arranged at the lower end of the stirring shaft, the one-way valve is arranged on the side wall of the stirring rod and is connected with the interior of the stirring rod, the air pump is arranged outside the kettle cover, the input end of the air pump is connected with the interior of the kettle cover through the exhaust pipe, the pumping mechanism is arranged on the kettle cover and connected with the air pump, when the air pump is working, the pumping mechanism extracts the hot air flow inside the kettle cover through the exhaust pipe and transports it to the lower end of the kettle body, the driving mechanism is arranged inside the kettle body and connected with the stirring shaft, when the hot air flow is transported downward inside the kettle body, the driving mechanism drives the spiral blade to rotate through the hot air flow and stirs the rubber raw materials with different stirring amplitudes at different heights.

[0008] By adopting the above scheme, when the air pump is working, the hot air flow above the inside of the kettle body can be circulated and pumped to the outside of the kettle body for cooling. At the same time, the auxiliary reagent can be preheated during the cooling process, and the auxiliary reagent is transported to the lower end of the inside of the kettle body after preheating, thereby reducing the temperature difference at different heights inside the kettle body, and then reducing the influence of the temperature difference at different heights on the viscosity of the rubber. When the air flow mixed with the auxiliary reagent is transported to the inside of the kettle body, the rotation of the spiral blades can be promoted, so that the spiral blades stir the rubber raw materials at different heights with different stirring amplitudes, thereby effectively ensuring the mixing effect of the rubber raw materials and the auxiliary reagents, that is, effectively ensuring the quality of the rubber products.

[0009] Preferably, the pumping mechanism includes an air supply pipe, a hollow column 1, a one-way valve 2, a feeding pipe, a sleeve 1, a sleeve 2, a sleeve 3, a guide pipe and a sleeve. The upper end of the air supply pipe is connected to the output end of the air pump, and a drainage port is opened on the pipe wall. The hollow column 1 is fixedly sleeved with the pipe wall of the air supply pipe. The one-way valve 2 is penetrated through the side wall of the hollow column 1 and connected to the feeding pipe. The sleeve 1 and the sleeve 2 are both sleeved with the stirring shaft, wherein the sleeve 1 is rotatably sleeved with the stirring shaft, and the sleeve 2 is fixedly sleeved with the stirring shaft. The second sleeve is rotatably sleeved inside the lower end of the first sleeve, the lower end of the air supply pipe passes through the interior of the first sleeve, the third sleeve is fixedly sleeved on the lower end of the stirring shaft, the stirring rod one is penetrated through the side wall of the third sleeve and is internally connected, the two ends of the guide pipe respectively pass through the interiors of the second sleeve and the third sleeve, the sleeve is sleeved with the guide pipe, the spiral blade is fixedly sleeved with the sleeve, the spiral blade is set with a variable pitch, the side wall of the spiral blade is frosted and contacts with the inner wall of the kettle body.

[0010] By adopting the above scheme, the hot air flow above the inside of the kettle can be pumped to the outside of the kettle for cooling during the operation of the air pump, and the added auxiliary reagent can be heated during the cooling process. On the one hand, it can avoid the situation where the temperature above the inside of the kettle is too high, which leads to a significant decrease in the viscosity of the rubber raw materials above; on the other hand, it can achieve preheating of the auxiliary reagent, avoid the situation where the local temperature of the rubber raw materials suddenly drops after the auxiliary reagent is added to the inside of the kettle, and reduce the situation where the mixing efficiency is affected after the auxiliary reagent is added.

[0011] Preferably, the driving mechanism includes hollow column two, a rotating rod, an impeller, bevel gear one and bevel gear two, the guide tube includes an upper tube and a lower tube, the lower end of the upper tube reaches the interior of hollow column two, the lower tube is rotatably sleeved in the interior of the sleeve, the upper end of the sleeve passes through the interior of hollow column two, the rotating rod is rotatably set in the interior of hollow column two, the impeller is fixedly sleeved with the rotating rod, one end of the rotating rod passes through the outside of hollow column two and is rotatably sleeved with the stirring shaft, the bevel gear one is fixedly sleeved on the tube wall of the sleeve, the bevel gear two is fixedly sleeved on the rod wall of the rotating rod, and the bevel gear one is meshed with the bevel gear two.

[0012] By adopting the above scheme, in the process of the airflow mixed with the auxiliary reagent being transported to the inside of the hollow column 2 through the upper tube, the heat on the impeller surface can be absorbed, so that the temperature above the inside of the kettle body can be lowered while the auxiliary reagent is further heated. When the airflow mixed with the auxiliary reagent hits the impeller, the impeller can be driven to rotate, and then the rotating rod can be driven to rotate. Under the dual effects of the impact force and the friction between the spiral blades and the inner wall of the kettle body, the stable rotation of the spiral blades is guaranteed, that is, the dual effects of temperature guidance and stirring are achieved, thereby effectively reducing the viscosity difference of the rubber raw materials at different heights inside the kettle body, and then effectively ensuring the mixing efficiency of the rubber raw materials and the auxiliary reagents.

[0013] Preferably, the rotating rod, bevel gear one and bevel gear two are all made of silicon carbide, and spoiler holes are provided inside bevel gear one and bevel gear two.

[0014] By adopting the above scheme, the silicon carbide material has high strength and good thermal conductivity, and the heat in the upper airflow inside the kettle body can be absorbed by the rotating rod, bevel gear one and bevel gear two, so that the heat above the inside of the kettle body can be relatively concentrated, and in the process of the airflow being transported from the upper tube to the hollow column two and the inside of the lower tube, the heat inside the kettle body can be adsorbed again, thereby realizing the cooling of the upper airflow inside the kettle body again, avoiding the situation where the viscosity of the rubber raw material at the upper position is reduced due to the high temperature above the kettle body, and the airflow mixed with auxiliary reagents can be transported to the lower part of the kettle body after being further heated, thereby promoting the temperature balance inside the kettle body, effectively avoiding the influence of temperature difference on rubber viscosity, and further effectively ensuring the mixing efficiency of rubber raw materials and auxiliary reagents.

[0015] Preferably, the spiral blade includes blade one and blade two, the pitch of blade one increases from top to bottom, the pitch of blade two decreases from top to bottom, the spiral directions of blade one and blade two are opposite, and baffles are provided on the upper side of blade one and the lower side of blade two.

[0016] By adopting the above scheme, since the side wall of the spiral blade is in contact with the inner wall of the kettle body, the spiral blade will rotate counterclockwise during the clockwise rotation of the stirring shaft in the top view direction, that is, blade one and blade two rotate counterclockwise at the same time. During the counterclockwise rotation of blade one, the rubber raw material with higher viscosity at the bottom of the kettle body can be quickly stirred upward by cooperating with the baffle, while during the counterclockwise rotation of blade two, the rubber raw material with lower viscosity at the top of the kettle body can be quickly transported downward by cooperating with the baffle, thereby promoting the same viscosity of rubber raw materials at different heights inside the kettle body, thereby promoting the mixing efficiency of rubber raw materials and auxiliary agents.

[0017] Preferably, the spoiler holes are arranged with variable diameters, and the diameters of the spoiler holes on the axial surfaces of the bevel gear 1 and the bevel gear 2 are smaller than the diameters of the radial surfaces.

[0018] By adopting the above scheme, during the clockwise rotation of the stirring shaft in the top view direction, due to the contact between the side wall of the spiral blade and the inner wall of the kettle body, the friction between the spiral blade and the inner wall of the kettle body and the impact force of the auxiliary reagent on the impeller can drive bevel gear one and bevel gear two to rotate, and then during the rotation of bevel gear one and bevel gear two, the airflow located above the interior of the kettle body can be pressed into the interior of the spoiler hole, and the different aperture sizes at both ends of the spoiler hole can accelerate the airflow, thereby avoiding the exhaust pipe from extracting the airflow at a fixed position, so that the temperature of the airflow at the upper position inside the kettle body can be evenly mixed.

[0019] Preferably, a heat conducting plate is embedded inside the blade 1, and the width of the heat conducting plate gradually decreases from top to bottom.

[0020] By adopting the above scheme, since the distance between adjacent pitches of blade one increases from top to bottom, and the width of the heat conduction plate decreases from top to bottom, under this setting condition, the heat conduction plate can absorb the heat flowing from the inside of the kettle body to the top, and can conduct the temperature from the top to the bottom under the heat conduction of the heat conduction plate, further reducing the viscosity difference of the rubber raw materials at different heights inside the kettle body, that is, further ensuring the mixing efficiency of the rubber raw materials and the auxiliary reagents.

[0021] Preferably, the stirring rod 1 is arranged at an angle, the installation position of the one-way valve 1 is opposite to the rotation direction of the stirring shaft, and the side wall circumferential array of the sleeve 3 has multiple stirring rods 2, and the number of the stirring rods 2 is greater than the number of the stirring rods 1.

[0022] By adopting the above scheme, the air outlet end of the one-way valve 1 can be prevented from pushing the rubber raw material inside the kettle body during the rotation of the stirring rod 1, thereby effectively avoiding the blockage of the air outlet end of the one-way valve 1. In addition, during the stirring process, the advantage of the number of stirring rods 2 being greater than the number of stirring rods 1 can be utilized to further disperse the auxiliary reagent discharged from the one-way valve 1 while breaking up the bubbles discharged from the air outlet end of the one-way valve 1, so that the auxiliary reagent can be evenly mixed inside the kettle body after being added, thereby improving the mixing efficiency of the auxiliary reagent and the rubber raw material.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Through the provided air pump, the hot air flow gathered above the inside of the kettle body can be pumped to the outside of the kettle body for cooling during the operation of the air pump, and the auxiliary reagents to be added can be preheated while cooling the hot air flow, which can not only improve the cooling effect of the hot air flow by utilizing the auxiliary reagents, but also avoid the auxiliary reagents from affecting the mixing efficiency due to the low temperature when mixing with the rubber raw materials. After the hot air flow mixed with the auxiliary reagents enters the kettle body, it can reabsorb the heat in the hot air flow inside the kettle body and above the rubber raw materials. After the hot air flow mixed with the auxiliary reagents is ejected from the one-way valve, the rubber raw materials accumulated at the bottom can be heated, thereby reducing the viscosity of the rubber raw materials accumulated at the bottom, and reducing the viscosity difference of the rubber raw materials at different heights, thereby ensuring the mixing efficiency of the rubber raw materials and the auxiliary reagents.

[0025] 2. Through the set driving mechanism, the hot air flow mixed with auxiliary reagents can impact the impeller in the process of entering the hollow column 2, and absorb the heat on the impeller surface, further realizing the cooling treatment of the upper part of the kettle body, so that the heat at different heights inside the kettle body tends to be consistent, reducing the viscosity difference of the rubber raw materials at different heights, further ensuring the mixing efficiency of the rubber raw materials and auxiliary reagents at different heights, and can drive the impeller to drive the rotating rod to rotate, so that the sleeve can be driven to rotate under the meshing action of the bevel gear 1 and the bevel gear 2, and then the friction between the spiral blade and the inner wall of the kettle body can stably drive the spiral blade to rotate, so that the rubber raw materials can be stirred in both horizontal and vertical directions, and the variable pitch setting of the spiral blade is used to have different stirring amplitudes at different heights.

[0026] 3. By setting the heat conduction plate and the baffle, since the baffle is set on the surface of the blade one and the blade two, the baffle is also set with a variable pitch, and the rubber raw material can be transported upward and downward respectively during the rotation of the blade one and the blade two. While the rubber raw material with higher viscosity at the bottom is transported upward, the rubber raw material with lower viscosity at the top can be transported downward. At the same time, with the heat conduction effect of the heat conduction plate, the heat from the top can be guided downward, further reducing the viscosity difference of the rubber raw materials at different heights, further improving the mixing effect of the rubber raw materials and auxiliary reagents, and ensuring the quality of the rubber products. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the connection structure between the kettle cover and the driving assembly, the stirring shaft and the stirring rod of the present invention.

[0029] Figure 3 It is a partial cross-sectional schematic diagram of the connection structure between the kettle cover and the stirring shaft, the pumping mechanism and the driving mechanism of the present invention;

[0030] Figure 4 For the present invention Figure 3 Enlarged view of the middle part A;

[0031] Figure 5 For the present invention Figure 3 Schematic diagram of the partial connection structure between the central stirring shaft, stirring rod and pumping mechanism;

[0032] Figure 6 For the present invention Figure 5 Enlarged view of the middle part B;

[0033] Figure 7 It is a schematic diagram of the connection structure between the sleeve and the blade 1 of the present invention;

[0034] Figure 8 The stirring process state diagram of the stirring shaft and the spiral blade of the present invention;

[0035] In the figure: 1, kettle body; 2, kettle cover; 3, drive assembly; 4, stirring shaft; 5, stirring rod 1; 6, one-way valve 1; 7, air pump; 8, exhaust pipe; 9, pumping mechanism; 91, air supply pipe; 911, drainage port; 92, hollow column 1; 93, one-way valve 2; 94, feeding pipe; 95, sleeve 1; 96, sleeve 2; 97, sleeve 3; 98, guide pipe; 981, upper pipe; 982, lower pipe; 99, sleeve; 10, spiral blade; 101, blade 1; 102, blade 2; 11, driving mechanism; 111, hollow column 2; 112, rotating rod; 113, impeller; 114, bevel gear 1; 115, bevel gear 2; 116, spoiler hole; 12, baffle; 13, heat conduction plate; 14, stirring rod 2. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 8 The present invention provides a fully automatic reaction kettle for chemical synthesis, and the technical scheme is as follows:

[0038] For details, please refer to Figure 1 , Figure 2 and Figure 3 A fully automatic reaction kettle for chemical synthesis comprises a kettle body 1, a kettle cover 2 and a driving assembly 3. The driving assembly 3 is arranged on the kettle cover 2 and is connected with a stirring shaft 4 which penetrates into the interior of the kettle body 1. It also comprises a stirring rod 5, a one-way valve 6, an air pump 7, an exhaust pipe 8, a pumping mechanism 9, a spiral blade 10 and a driving mechanism 11. The stirring rod 5 is hollow and arranged at the lower end of the stirring shaft 4. The one-way valve 6 is arranged on the side wall of the stirring rod 5 and is connected with the interior of the stirring rod 5. The air pump 7 is arranged outside the kettle cover 2, and the input end of the air pump 7 is connected with the interior of the kettle cover 2 through the exhaust pipe 8. When the air pump 7 is working, it can extract the hot air flow inside the kettle body 1 to the outside of the kettle body 1 for cooling treatment, thereby reducing the temperature difference at different height positions inside the kettle body 1.

[0039] As an embodiment of the present invention, in order to realize the preheating of the auxiliary reagent while drawing the hot air flow from the upper position inside the kettle body 1 to the outside for cooling, and to be able to directly transport the preheated auxiliary reagent to the lower end position inside the kettle body 1, refer to Figure 3, Figure 4 and Figure 5 The pumping mechanism 9 is arranged on the kettle cover 2 and connected to the air pump 7. The pumping mechanism 9 includes an air supply pipe 91, a hollow column 1 92, a check valve 2 93, a feeding pipe 94, a sleeve 1 95, a sleeve 2 96, a sleeve 3 97, a guide pipe 98 and a sleeve 99. The upper end of the air supply pipe 91 is connected to the output end of the air pump 7, and a drainage port 911 is opened on the pipe wall. The hollow column 1 92 is fixedly sleeved with the pipe wall of the air supply pipe 91. The check valve 2 93 is penetrated through the side wall of the hollow column 1 92 and connected to the feeding pipe 94. The sleeve 1 95 and the sleeve 2 96 are both sleeved with the stirring shaft 4, wherein the sleeve 1 95 is sleeved with the stirring shaft 4. Rotatingly sleeved, sleeve two 96 is fixedly sleeved with the stirring shaft 4, sleeve two 96 is rotatably sleeved inside the lower end of sleeve one 95, the lower end of the air supply pipe 91 passes through the interior of sleeve one 95, sleeve three 97 is fixedly sleeved on the lower end of the stirring shaft 4, the stirring rod one 5 is penetrated through the side wall of sleeve three 97 and the interior is connected, the two ends of the guide pipe 98 respectively pass through the interior of sleeve two 96 and sleeve three 97, sleeve 99 is sleeved with the guide pipe 98, the spiral blade 10 is fixedly sleeved with sleeve 99, the spiral blade 10 is set with a variable pitch, the side wall of the spiral blade 10 is frosted and contacts with the inner wall of the kettle body 1.

[0040] Under the above-mentioned setting conditions, during the operation of the air pump 7, the hot air flow above the interior of the kettle body 1 can be continuously pumped to the outside for cooling and then re-delivered to the interior of the kettle body 1, thereby reducing the temperature of the upper position inside the kettle body 1, avoiding the situation where the temperature above the interior of the kettle body 1 is high and the viscosity of the rubber raw materials at the upper position is reduced, and reducing the viscosity difference of the rubber raw materials at different heights inside the kettle body 1. During the clockwise rotation of the stirring shaft 4 in the top view, the connection between the guide tube 98 and the sleeve 99 can be used to directly drive the spiral blade 10 to revolve around the stirring shaft 4. During the revolution of the spiral blade 10, due to the contact between the side wall of the spiral blade 10 and the kettle body 1, the spiral blade 10 can be directly driven to revolve around the stirring shaft 4. The inner wall of the kettle body 1 is in contact with the inner wall, so it can rotate counterclockwise under the action of the friction between the two, so that the rubber raw material inside the kettle body 1 can be stirred in the axial direction. Since the spiral blade 10 is set with a variable pitch, it can stir with different amplitudes at different heights and stir at a faster speed at a position where the rubber raw material has greater viscosity, which effectively reduces the viscosity difference of the rubber raw material at different heights inside the kettle body 1, thereby effectively ensuring the mixing efficiency of the rubber raw material and the added auxiliary reagent. After the auxiliary reagent is added, the air pump 7 is turned off, and the rubber raw material and the auxiliary reagent are completely mixed by stirring, which can avoid the influence of bubbles on the rubber product.

[0041] As an embodiment of the present invention, in order to ensure that the spiral blade 10 can stably rotate while revolving, thereby achieving dual stirring of the rubber raw material inside the kettle body 1 in the horizontal and vertical directions, refer to Figure 5 and Figure 6 The driving mechanism 11 is arranged inside the kettle body 1 and connected to the stirring shaft 4. The driving mechanism 11 includes a hollow column 111, a rotating rod 112, an impeller 113, a bevel gear 114 and a bevel gear 115. The guide tube 98 includes an upper tube 981 and a lower tube 982. The lower end of the upper tube 981 reaches the inside of the hollow column 111, and the lower tube 982 is rotatably sleeved inside the sleeve 99. The upper end of the sleeve 99 passes through the inside of the hollow column 111. The rotating rod 112 is rotatably arranged inside the hollow column 111. The impeller 113 is fixedly sleeved with the rotating rod 112. One end of the rotating rod 112 passes through the outside of the hollow column 111 and is rotatably sleeved with the stirring shaft 4. The bevel gear 114 is fixedly sleeved on the tube wall of the sleeve 99. The bevel gear 115 is fixedly sleeved on the rod wall of the rotating rod 112. The bevel gear 114 is meshed with the bevel gear 115.

[0042] Under the above-mentioned setting conditions, when the airflow mixed with the auxiliary reagent is transported to the inside of the hollow column 111, it can impact the impeller 113 to rotate, and in the process of impacting the impeller 113, it can further absorb the heat on the surface of the impeller 113, thereby cooling the upper part of the interior of the kettle body 1 and further heating the auxiliary reagent. In the process of the impeller 113 rotating, the rotating rod 112 can be driven to drive the bevel gear 115 to rotate. Under the meshing action of the bevel gear 114 and the bevel gear 115, since the bevel gear 115 is fixedly sleeved with the sleeve 99, the sleeve 99 can be driven to rotate counterclockwise. The spiral blade 10 rotates in a counterclockwise direction by the friction between the spiral blade 10 and the inner wall of the kettle body 1, thereby ensuring the stable rotation of the spiral blade 10. During the revolution of the spiral blade 10, auxiliary stirring of the rubber raw material in the horizontal direction can be achieved, and during the rotation of the spiral blade 10, auxiliary stirring of the rubber raw material in the vertical direction can be achieved. While improving the stirring effect on the raw materials, since the spiral blade 10 is set with a variable pitch, it can stir in a targeted manner according to the different viscosity characteristics of the rubber raw material at different heights, further reducing the viscosity difference of the rubber raw material at different heights inside the kettle body 1.

[0043] As an embodiment of the present invention, in order to further cool the hot air flow above the kettle body 1 when the air flow mixed with the auxiliary reagent is transported to the kettle body 1, refer to Figure 6 The rotating rod 112, bevel gear 114 and bevel gear 2 115 are all made of silicon carbide. Bevel gear 114 and bevel gear 2 115 are both provided with spoiler holes 116 inside. The spoiler holes 116 are variable in diameter. The aperture of the axial surface of the spoiler holes 116 located on the bevel gear 114 and bevel gear 2 115 is smaller than the aperture of the radial surface.

[0044] Under the above-mentioned setting conditions, when the stirring shaft 4 rotates clockwise in the top view, the spoiler holes 116 opened inside the bevel gear 114 and the bevel gear 115 can mix the hot air flow above the inside of the kettle body 1, and the rotating rod 112, the bevel gear 114 and the bevel gear 115 can absorb heat, so that the airflow mixed with auxiliary reagents can cool down the heat absorbed by the rotating rod 112, the bevel gear 114 and the bevel gear 115 during the transportation process, thereby achieving the effect of conducting the heat above the inside of the kettle body 1 from the outside of the guide tube 98 to the inside of the guide tube 98, achieving further cooling of the inside of the kettle body 1, further avoiding the situation where the viscosity decreases due to the high temperature at the upper part of the kettle body 1, and effectively ensuring the mixing effect of the rubber raw materials and auxiliary reagents at different heights.

[0045] As an embodiment of the present invention, in order to realize the vertical conveying of the rubber raw material and the stirring of the rubber raw material at different heights with different amplitudes, refer to Figure 7 The spiral blade 10 includes a blade 101 and a blade 102. The pitch of the blade 101 increases from top to bottom, and the pitch of the blade 102 decreases from top to bottom. The spiral directions of the blade 101 and the blade 102 are opposite. A baffle 12 is provided on the upper side of the blade 101 and the lower side of the blade 102. A heat conducting plate 13 is embedded in the interior of the blade 101, and the width of the heat conducting plate 13 gradually decreases from top to bottom.

[0046] Under the above setting conditions, since blade one 101 and blade two 102 both rotate counterclockwise, when blade one 101 rotates counterclockwise, the rubber raw material with low temperature and high viscosity at the bottom can be quickly stirred and transported upward through the obstruction of the baffle 12, and when blade two 102 rotates counterclockwise, the rubber raw material with high temperature and low viscosity at the top can be quickly stirred and transported downward through the obstruction of the baffle 12, thereby reducing the viscosity difference of the rubber raw material at different heights, and then ensuring the mixing effect of the rubber raw material and the auxiliary agent.

[0047] As an embodiment of the present invention, in order to enable the airflow and auxiliary reagent discharged from the one-way valve 6 to be dispersed quickly, refer to Figure 8 The stirring rod 5 is tilted, the installation position of the one-way valve 6 is opposite to the rotation direction of the stirring shaft 4, and the side wall circumferential array of the sleeve three 97 has multiple stirring rods 2 14, and the number of the stirring rods 2 14 is greater than the number of the stirring rods 5.

[0048] Under the above-mentioned setting conditions, the stirring rod 1 5 and the stirring rod 2 14 are coaxially arranged and can rotate at the same speed. Since the number of stirring rods 2 14 is greater than the number of stirring rods 1 5, the airflow and auxiliary reagents discharged from the one-way valve 6 can be quickly dispersed during the rotation of the stirring rod 2 14, thereby reducing the accumulation of the auxiliary reagents and accelerating the mixing effect of the auxiliary reagents and the rubber raw materials, thereby ensuring the production quality of the rubber products.

[0049] Working principle: In order to reduce the viscosity difference of the rubber raw materials at different heights inside the kettle body 1, refer to Figure 3 and Figure 4 , through the provided suction assembly, the hot air flow above the kettle body 1 is circulated and pumped during the operation of the air pump 7, and the hot air flow above is transported to the lower part of the kettle body 1 through the one-way valve 6, so that the temperature difference at different heights inside the kettle body 1 can be reduced, and then the viscosity difference of the rubber raw material at different heights inside the kettle body 1 can be reduced, so as to achieve the purpose of improving the mixing effect of the rubber raw material and the auxiliary reagent, and then improve the quality of the rubber product; in order to reduce the viscosity difference of the rubber raw material at different heights, refer to Figure 5 , Figure 6 and Figure 7 When the airflow mixed with the auxiliary reagent enters the interior of the hollow column 111, the heat adsorbed and guided to the surface of the impeller 113 by the rotating rod 112 and the bevel gear 115 is further adsorbed and discharged through the one-way valve 6, thereby further reducing the temperature difference at different height positions inside the kettle body 1. At the same time, in the process of the airflow mixed with the auxiliary reagent impacting the impeller 113, the impeller 113 can be driven to drive the rotating rod 112 to rotate, and then, under the meshing action of the bevel gear 114 and the bevel gear 115, the spiral blade 10 can be driven to rotate with the friction force between the spiral blade 10 and the inner wall of the kettle body 1 during the revolution, thereby enabling the spiral blade 10 to rotate by itself, thereby enabling the rubber raw material with a larger viscosity at the bottom to be transported upward while the rubber raw material with a smaller viscosity at the top to be transported downward, thereby effectively reducing the viscosity difference of the rubber raw materials at different height positions inside the kettle body 1, thereby improving the mixing efficiency of the rubber raw materials and the auxiliary reagents.

[0050] Specific: Refer to Figure 3 , Figure 4 and Figure 5During the stirring process, the air pump 7 is started, and the input end of the air pump 7 pumps the hot air flow above the inside of the kettle body 1 to the inside of the air supply pipe 91 through the exhaust pipe 8. In this process, the auxiliary reagent is added through the feeding pipe 94 and the one-way valve 93, which can realize the preheating of the auxiliary reagent. As the airflow mixed with the auxiliary reagent enters the inside of the hollow column 111, it can absorb the temperature transferred to the surface of the impeller 113, thereby realizing further cooling of the upper position inside the kettle body 1. After the preheated auxiliary reagent is discharged from the one-way valve 6 along with the hot air flow, since the number of the stirring rods 14 is greater than the number of the stirring rods 5, the auxiliary reagent can be quickly dispersed inside the rubber raw material, thereby improving the mixing efficiency of the rubber raw material and the auxiliary reagent;

[0051] Reference Figure 5 and Figure 6 When the auxiliary reagent mixed with the airflow enters the hollow column 111, the impeller 113 can be impacted by the impact force, and the spiral blade 10 can be driven to revolve during the rotation of the stirring shaft 4. Since the side wall of the spiral blade 10 is in contact with the inner wall of the kettle body 1, the spiral blade 10 can be rotated by the friction force. When the impeller 113 is impacted, the meshing effect of the bevel gear 114 and the bevel gear 2 115 can be used to assist the driving sleeve 99 to drive the spiral blade 10 to rotate, thereby realizing the double stirring of the rubber raw material inside the kettle body 1 in the horizontal and vertical directions, further improving the mixing efficiency of the rubber raw material and the auxiliary reagent;

[0052] Reference Figure 5 and Figure 8 During the rotation of the spiral blade 10, since the installation directions and spiral directions of the blade 101 and the blade 2 102 are opposite, during the self-rotation of the blade 101, it can cooperate with the corresponding baffle 12 to quickly transport the rubber raw material with higher viscosity at the bottom upward, and during the self-rotation of the blade 2 102, it can cooperate with the corresponding baffle 12 to quickly transport the rubber raw material with lower viscosity at the top downward, thereby reducing the viscosity difference of the rubber raw materials at different heights during the stirring process, thereby ensuring the mixing efficiency of the rubber raw materials and the auxiliary reagents.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic reaction kettle for chemical synthesis, comprising a kettle body (1), a kettle cover (2) and a drive assembly (3), wherein the drive assembly (3) is arranged on the kettle cover (2) and is connected to a stirring shaft (4) penetrating the interior of the kettle body (1), characterized in that: The stirring rod (5) is hollow and arranged at the lower end of the stirring shaft (4); the one-way valve (6) is arranged on the side wall of the stirring rod (5) and is connected to the inside of the stirring rod (5); the air pump (7) is arranged outside the kettle cover (2); the input end of the air pump (7) is connected to the inside of the kettle cover (2) through the air extraction pipe (8); the The pumping mechanism (9) is arranged on the kettle cover (2) and connected to the air pump (7). When the air pump (7) is working, the pumping mechanism (9) extracts the hot air flow inside the kettle cover (2) through the air extraction pipe (8) and transports it to the lower end of the kettle body (1). The driving mechanism (11) is arranged inside the kettle body (1) and connected to the stirring shaft (4). When the hot air flow is transported downward inside the kettle body (1), the driving mechanism (11) drives the spiral blade (10) to rotate through the hot air flow and stirs the rubber raw material at different heights with different stirring amplitudes.

2. The fully automatic reaction kettle for chemical synthesis according to claim 1, characterized in that: The pumping mechanism (9) comprises an air supply pipe (91), a hollow column (92), a check valve (93), a feeding pipe (94), a sleeve (95), a sleeve (96), a sleeve (97), a flow guide pipe (98) and a sleeve (99). The upper end of the air supply pipe (91) is connected to the output end of the air pump (7), and a flow guide port (911) is provided on the pipe wall. The hollow column (92) is sleeved with the pipe wall of the air supply pipe (91). The check valve (93) is inserted through the side wall of the hollow column (92) and is connected to the feeding pipe (94). The sleeve (95) and the sleeve (96) are both sleeved with the stirring shaft (4). The sleeve (97) is provided with a guide pipe (98) and a sleeve (99). (96) is sleeved inside the lower end of sleeve one (95), the lower end of the air supply pipe (91) passes through the interior of sleeve one (95), the sleeve three (97) is sleeved on the lower end of the stirring shaft (4), the stirring rod one (5) is penetrated through the side wall of sleeve three (97) and is internally connected, the two ends of the guide pipe (98) respectively pass through the interior of sleeve two (96) and sleeve three (97), the sleeve (99) is sleeved with the guide pipe (98), the spiral blade (10) is sleeved with the sleeve (99), the spiral blade (10) is set with a variable pitch, the side wall of the spiral blade (10) is frosted and contacts the inner wall of the kettle body (1).

3. A fully automatic reaction kettle for chemical synthesis according to claim 2, characterized in that: The driving mechanism (11) comprises a second hollow column (111), a rotating rod (112), an impeller (113), a first bevel gear (114) and a second bevel gear (115); the flow guide tube (98) comprises an upper tube (981) and a lower tube (982); the lower end of the upper tube (981) extends into the interior of the second hollow column (111); the lower tube (982) is sleeved in the interior of a sleeve (99); the upper end of the sleeve (99) penetrates into the interior of the second hollow column (111). The rotating rod (112) is rotatably arranged inside the second hollow column (111), the impeller (113) is sleeved with the rotating rod (112), one end of the rotating rod (112) passes through the outside of the second hollow column (111) and is sleeved with the stirring shaft (4), the first bevel gear (114) is sleeved on the tube wall of the sleeve (99), the second bevel gear (115) is sleeved on the rod wall of the rotating rod (112), and the first bevel gear (114) is meshed with the second bevel gear (115).

4. The fully automatic reaction kettle for chemical synthesis according to claim 2, characterized in that: The spiral blade (10) comprises blade one (101) and blade two (102); the pitch of blade one (101) increases from top to bottom, and the pitch of blade two (102) decreases from top to bottom; the spiral directions of blade one (101) and blade two (102) are opposite; and baffles (12) are provided on the upper side of blade one (101) and the lower side of blade two (102).

5. The fully automatic reaction kettle for chemical synthesis according to claim 3, characterized in that: The rotating rod (112), bevel gear one (114) and bevel gear two (115) are all made of silicon carbide, and spoiler holes (116) are provided inside bevel gear one (114) and bevel gear two (115).

6. A fully automatic reaction kettle for chemical synthesis according to claim 5, characterized in that: The spoiler hole (116) is arranged with a variable diameter, and the hole diameter of the axial surface of the spoiler hole (116) located on the bevel gear 1 (114) and the bevel gear 2 (115) is smaller than the hole diameter of the radial surface.

7. The fully automatic reaction kettle for chemical synthesis according to claim 4, characterized in that: A heat conducting plate (13) is embedded inside the blade 1 (101), and the width of the heat conducting plate (13) gradually decreases from top to bottom.

8. The fully automatic reaction kettle for chemical synthesis according to claim 3, characterized in that: The stirring rod one (5) is arranged at an angle, the installation position of the one-way valve one (6) is opposite to the rotation direction of the stirring shaft (4), and the side wall circumferential array of the sleeve three (97) has multiple stirring rods two (14), and the number of the stirring rods two (14) is greater than the number of the stirring rod one (5).

Images