Horizontal intermeshing twin screw continuous reactor for polymerization

Abstract

This invention discloses a horizontal meshing twin-shaft continuous reactor for polymerization reactions, belonging to the technical field of polymerization equipment. The horizontal meshing twin-shaft continuous reactor for polymerization reactions includes a barrel, a gearbox, and a power unit. It also includes two meshing rotor assemblies, each rotor assembly comprising a drive shaft and multiple first and second stirring discs. The drive shaft is connected to the gearbox and has axially oriented limiting strips. The first stirring discs have a single-head, double-head, or triple-head spiral structure and are used to stir and push the raw materials within the barrel. The second stirring discs have a spindle-shaped structure and are used to shear and knead the raw materials within the barrel. This horizontal meshing twin-shaft continuous reactor for polymerization reactions can adjust the reaction time according to the time required for polymerization of reactants of different viscosities, thus meeting the time requirements for polymerization reactions of reactants of different viscosities.

Description

Technical Field

[0001] This invention relates to the field of polymerization reaction equipment technology, and more specifically to a horizontal meshing twin-shaft continuous reactor for polymerization reactions. Background Technology

[0002] Polymerization is one of the most important reaction processes in polymer material processing. Reactants typically consist of one or more substances, and most reactants undergo phase changes during the reaction. Horizontal biaxial reactors are commonly used for reactions involving phase-change materials. The polymerization reaction occurs within the reactor, and the process involves: first, thorough mixing of the reactants to rapidly disperse and uniformly mix the different components; second, a sufficiently long residence time in the reactor for the reaction to proceed; and third, the presence of heat exchange during the reaction necessitates forced heating / cooling of the reactants.

[0003] During polymerization in a reactor, the higher the viscosity of the reactants, the greater the resistance they experience from the stirring disc and the inner wall of the barrel. Therefore, when the stirring disc applies the same driving force to the reactants, higher viscosity reactants tend to remain in the barrel for longer periods. If the residence time is too short, the polymerization reaction is incomplete; if the residence time is too long, the polymerized products are prone to solidification within the barrel. Traditional twin-shaft continuous reactors typically use an internal stirring disc to agitate and propel the reactants. The residence time is usually adjusted by regulating the rotation speed of the stirring disc. However, this method reduces the agitation effect and hinders complete reaction. Summary of the Invention

[0004] The purpose of this invention is to overcome the problems in the prior art and provide a horizontal meshing twin-shaft continuous reactor for polymerization reactions. Without affecting the stirring effect, the reaction time can be adjusted according to the time required for polymerization of reactants of different viscosities, so as to meet the time requirements of polymerization reactions of reactants of different viscosities.

[0005] This invention provides a horizontal meshing twin-shaft continuous reactor for polymerization reactions, comprising a barrel, a gearbox, and a power unit, and further comprising:

[0006] Two meshing rotor assemblies are connected to a barrel bearing. Each rotor assembly includes a drive shaft and multiple first and multiple second stirring discs. The drive shaft is connected to the gearbox and is provided with a limiting strip along its axial direction. The multiple first and multiple second stirring discs are detachably connected to the drive shaft. The limiting strip is connected to the multiple first and multiple second stirring discs and is used to restrict the multiple first and multiple second stirring discs from rotating around the drive shaft.

[0007] The first stirring disc has a single-head, double-head, or triple-head spiral structure and is used to stir and push the raw materials in the barrel.

[0008] The second mixing disc has a spindle-shaped structure and is used to shear and knead the raw materials inside the machine barrel;

[0009] The ratio of the number of the first and second stirring discs is selected based on the fluidity of the reactants after the polymerization reaction of the raw materials in the barrel. The worse the fluidity of the reactants, the higher the proportion of the first stirring disc.

[0010] Preferably, the rotor assembly further includes a third stirring disc, and multiple third stirring discs are detachably connected to the drive shaft. The limiting strip is connected to the third stirring disc and is used to restrict the rotation of the multiple third stirring discs around the drive shaft. The multiple third stirring discs are all disc-shaped structures, and multiple stirring paddles are pivotally connected to each third stirring disc. The multiple stirring paddles are arranged circumferentially along the drive shaft. The multiple stirring paddles on the two rotor assemblies are arranged alternately. The stirring paddles are connected to an angle control device, and the angle control device is used to drive the stirring paddles to rotate.

[0011] Preferably, the drive shaft is provided with multiple fluid passage holes, and the side wall of the drive shaft is provided with multiple rows of first piston holes, each row of first piston holes corresponding to one fluid passage hole, and each row of first piston holes communicating with its corresponding fluid passage hole. Each first piston hole has a spiral groove on its side wall, and each first piston hole is provided with a stirring paddle. The stirring paddle includes a slide rod, a paddle plate, and a first piston. The first piston is slidably and sealed within the first piston hole. The side wall of the first piston is provided with a first slider, which is slidably and sealed within the spiral groove. One end of the slide rod is connected to the first piston, and the other end of the slide rod is connected to the paddle plate. The angle control device is a hydraulic control device, and the angle control device is connected to each fluid passage hole.

[0012] Preferably, the angle control device includes a mounting base and a drive mechanism. The mounting base is connected to the transmission shaft. The mounting base is provided with a plurality of second piston holes. Each second piston hole is connected to a fluid passage hole on the transmission shaft. A second piston is slidably connected in each second piston hole. Hydraulic oil is provided in the second piston hole. The drive mechanism is connected to the second piston.

[0013] Preferably, the driving mechanism includes a pressing mechanism and a hydraulic control circuit. The pressing mechanism includes a pressing plate, a first hydraulic cylinder, and a second hydraulic cylinder. The pressing plate is connected to the second piston, and a connecting plate is connected to the pressing plate. The piston of the first hydraulic cylinder is hinged to the connecting plate. A sliding groove is provided on the connecting plate, and a second slider is slidably connected in the sliding groove. The second slider is connected to the piston of the second hydraulic cylinder, and the hydraulic control circuit is connected to the first hydraulic cylinder and the second hydraulic cylinder.

[0014] Preferably, a spring is provided in the second piston hole, the spring abutting against the piston head of the second piston, and the spring is used to apply an elastic force toward the piston head of the second piston in the direction of the pressing plate.

[0015] Preferably, the outer edge of the third mixing plate is provided with a plurality of grooves, the plurality of grooves being evenly arranged on the outer edge of the third mixing plate, and the blade of each mixing paddle being disposed in one groove.

[0016] Preferably, the impeller blades are all strip-shaped structures, and the slide rod is connected to the center of the impeller blade.

[0017] Preferably, the drive shaft is provided with a heat exchange hole, and the heat exchange hole is connected to a temperature control device.

[0018] Preferably, both the first and second mixing discs are provided with a wear-resistant coating.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the horizontal meshing twin-shaft continuous reactor of the present invention for polymerization reaction can precisely control the reaction time of reactants in the reaction device according to the different time required for different reactants to undergo polymerization reaction, without affecting the stirring effect, thereby ensuring the sufficiency of the polymerization reaction of reactants and preventing the products after polymerization reaction from solidifying in the barrel of the reaction device.

[0020] By incorporating a stirring paddle and an angle control device, the tilt angle of the stirring paddle can be adjusted when the reaction state of the reactants within the reactor is unsatisfactory. This timely adjustment of the stirring effect and reaction time ensures the sufficiency of the polymerization reaction and prevents the solidification of the polymer products within the reactor barrel. The angle control device controls the amount of hydraulic oil in multiple rows of first piston holes through multiple liquid passages, simultaneously controlling the angle of multiple stirring paddles. This eliminates the need for complex transmission components, avoiding resistance to the flow of reactants within the reactor and ensuring the effective pushing of the first stirring plate and the stirring and mixing of the reactants by the second stirring plate and stirring paddles. The angle control device precisely regulates the amount of hydraulic oil in the first piston holes on the drive shaft, thereby precisely controlling the tilt angle of the stirring paddles and improving the accuracy of controlling the reaction time within the reactor, thus meeting the time requirements for polymerization reactions of reactants with different viscosities. By employing a pressing mechanism and a hydraulic control circuit, the angle of the pressing mechanism is altered via the hydraulic control circuit. This causes the second piston to reciprocate within the second piston hole as the mounting base rotates relative to the pressing mechanism. This results in periodic changes in the deflection angle of the agitator blades and the distance between the blades and the drive shaft. This further enhances the stirring and mixing effect of the reactants within the barrel, thereby improving the completeness of the polymerization reaction. Multiple grooves are provided on the third stirring plate. When the third stirring plate rotates, these grooves apply shear force to the reactants within the barrel, improving the mixing and dispersion effect of the reactants, thus ensuring a more complete polymerization reaction. The blades are designed as long, narrow plates. When the blades are tilted, they can apply sufficient pushing force to the reactants within the barrel, preventing them from remaining in the barrel for too long and affecting production efficiency. Through heat exchange holes, a temperature control device regulates the temperature of the drive shaft, thereby controlling the reaction temperature within the barrel and ensuring the reaction temperature within the reactor is at its optimal level. By applying a wear-resistant coating to the first and second mixing plates, the wear resistance of the first and second mixing plates can be improved, thereby extending the service life of the entire reactor. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the first working mode of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the first working mode of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the first working state of the second working mode of the present invention;

[0024] Figure 4This is a schematic diagram of the structure of the second working state of the second working mode of the present invention;

[0025] Figure 5 This is a schematic diagram of the AA surface of the present invention;

[0026] Figure 6 This is a schematic diagram of the BB surface of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the stirring paddle in this invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 101. Barrel, 102. Drive shaft, 103. Third stirring plate, 104. Stirring paddle, 105. Gearbox, 106. Second stirring plate, 107. Rotor assembly, 108. Limiting strip, 109. First stirring plate, 201. Liquid passage hole, 202. First piston hole, 203. Spiral groove, 204. Slide rod, 205. Paddle plate, 206. First piston, 207. First slider, 301. Mounting base, 302. Second piston, 303. Second piston hole, 401. Pressing plate, 402. First hydraulic cylinder, 403. Second hydraulic cylinder, 404. Connecting plate, 405. Slide groove, 406. Second slider, 5. Spring, 6. Slide hole, 7. Groove, 8. Heat exchange hole. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-7 The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] Example 1:

[0032] like Figure 1 and 2As shown, the present invention provides a horizontal meshing twin-shaft continuous reactor for polymerization reactions, comprising a barrel 101, a gearbox 105, a power unit, a coupling, inlet and outlet bearing seats, a connecting body, and a tail seal. It also includes two meshing rotor assemblies 107, each connected to a bearing in the barrel 101. Each rotor assembly 107 includes a drive shaft 102, multiple first stirring discs 109, and multiple second stirring discs 106. The drive shaft 102 is connected to the gearbox 105, and a limiting strip 108 is provided on the drive shaft 102 along its axial direction. The multiple first stirring discs 109 and multiple second stirring discs 106 are detachably connected to the drive shaft 102. Above, the limiting strip 108 is connected to multiple first stirring discs 109 and multiple second stirring discs 106. The limiting strip 108 is used to restrict the rotation of the multiple first stirring discs 109 and multiple second stirring discs 106 around the drive shaft 102. The first stirring disc 109 has a single-headed, double-headed, or triple-headed spiral structure and is used to stir and push the raw materials in the barrel 101. The second stirring disc 106 has a spindle-shaped structure and is used to shear and knead the raw materials in the barrel. The ratio of the number of first stirring discs 109 and second stirring discs 106 is selected according to the fluidity of the reactants after the polymerization reaction of the raw materials in the barrel. The worse the fluidity of the reactants, the higher the proportion of the first stirring discs 109.

[0033] The working principle of Example 1 is briefly described below:

[0034] The barrel 101 of this device is mounted on a frame. The power unit provides power to the gearbox 105, which distributes the power to the drive shafts 102 of the two rotor assemblies 107. One end of the barrel 101 has a feed inlet, and the other end has a discharge outlet. In use, the ratio of the first stirring disc 109 to the second stirring disc 106 is selected according to the viscosity of the reactants. The first stirring disc 109 is installed on both sides of the drive shaft 102, and the second stirring disc 106 is installed in the middle of the drive shaft 102. Multiple raw materials are fed into the inner cavity of the barrel 101 through the feed inlet. Then, the power unit is controlled to operate. The power unit drives the transmission shaft 102 to rotate through the gearbox 105. The transmission shaft 102 drives the first stirring disc 109 and the second stirring disc 106 on it to rotate. Since the first stirring disc 109 has a single-headed, double-headed, or triple-headed spiral structure, it can apply a large pushing force while stirring the reactants in the barrel 101 when it rotates. Since the second stirring disc 106 has a spindle-shaped structure, it can apply a large squeezing and shearing force to the reactants in the barrel 101 when it rotates, resulting in better mixing and dispersion of the reactants, thus making the polymerization reaction of the reactants more complete. Finally, the reaction product is pushed out from the discharge port of the barrel 101, completing the reaction. Furthermore, since the multiple first stirring discs 109 and multiple second stirring discs 106 of this reaction apparatus are detachably connected to the drive shaft 102 and slidably connected to the limiting strip 108, the quantity ratio of the first stirring discs 109 and the second stirring discs 106 is selected according to the fluidity of the reactants after the polymerization reaction of the raw materials in the barrel 101. The worse the fluidity of the reactants, the larger the quantity ratio of the first stirring discs 109 to the second stirring discs 106. Thus, different quantity ratios of the first stirring discs 109 and the second stirring discs 106 can be selected according to the reaction requirements of reactants with different fluidities.

[0035] The present invention provides a horizontal meshing twin-shaft continuous reactor for polymerization reactions, which can precisely control the reaction time of reactants in the reactor without affecting the stirring effect, according to the different time required for polymerization of different raw materials. This ensures the sufficiency of the polymerization reaction and prevents the products after polymerization from solidifying in the barrel of the reactor.

[0036] Example 2:

[0037] Based on Example 1, in order to change the reaction time of the reactants in the reaction device without affecting the stirring effect, so as to meet the time requirements of different polymerization reactions.

[0038] like Figure 3-7As shown, the rotor assembly 107 further includes a third stirring disc 103. Multiple third stirring discs 103 are detachably connected to the drive shaft 102. The limiting strip 108 is connected to the third stirring disc 103 and is used to limit the rotation of the multiple third stirring discs 103 around the drive shaft 102. The multiple third stirring discs 103 are all disc-shaped structures. Multiple stirring paddles 104 are pivotally connected to each third stirring disc 103. The multiple stirring paddles 104 are arranged circumferentially along the drive shaft 102. The multiple stirring paddles 104 on the two rotor assemblies 107 are arranged alternately. The stirring paddles 104 are connected to an angle control device, which is used to drive the stirring paddles 104 to rotate.

[0039] The drive shaft 102 drives the third stirring plate 103, the stirring paddle 104 and the second stirring plate 106 on it to rotate. Under the push of the second stirring plate 106, the reactants move from the feed port of the barrel 101 to the discharge port. The angle of the stirring paddle 104 is controlled by the angle control device. The inclined stirring paddle 104 can push the various raw materials to the discharge port side while stirring the various reactants, thereby realizing the polymerization reaction of the various reactants. Furthermore, when the reactants react in the barrel 101 of the reaction apparatus, the angle control device can be activated in a timely manner according to the state of the reactants in the barrel 101 and the quality of the final reaction product. This drives multiple stirring paddles 104 to rotate, thereby changing the angle between the stirring paddles 104 and the axis of the drive shaft 102, and changing the thrust exerted by the stirring paddles 104 on the reactants along the axial direction of the drive shaft 102. This allows for timely adjustment of the stirring effect and reaction time of the reactants in the reaction apparatus when the reaction state is not ideal, thereby further ensuring the sufficiency of the polymerization reaction and preventing the solidification of the polymerized product in the barrel 101 of the reaction apparatus.

[0040] Example 3:

[0041] Based on Example 1, in order to prevent the transmission components from creating resistance to the flow of reactants in the reaction device, improve the stirring and mixing effect of the reactants, and ensure the accuracy of controlling the reaction time of the reactants in the reaction device.

[0042] like Figure 3 , 4As shown in Figures 6 and 7, the drive shaft 102 is provided with multiple fluid passage holes 201, and the side wall of the drive shaft 102 is provided with multiple rows of first piston holes 202. Each row of first piston holes 202 corresponds to one fluid passage hole 201, and each row of first piston holes 202 is connected to its corresponding fluid passage hole 201. Each first piston hole 202 has a spiral groove 203 on its side wall, and each first piston hole 202 is provided with a stirring paddle 104. The stirring paddle 104 includes a slide rod 204, a paddle plate 205, and a first piston 206. The first piston 206 is slidably connected in a sealed manner within the first piston hole 202. The side wall of the first piston 206 is provided with a first slider 207, which is slidably connected in a sealed manner within the spiral groove 203. One end of the slide rod 204 is connected to the first piston 206, and the other end of the slide rod 204 is connected to the paddle plate 205. The angle control device is a hydraulic control device, and the angle control device is connected to each fluid passage hole 201.

[0043] When changing the reaction time of the reactants in the reaction device, hydraulic oil is introduced or extracted into the liquid passage hole 201 on the drive shaft 102 by means of an angle control device, thereby controlling the amount of hydraulic oil in the first piston hole 202 on the drive shaft 102 that is connected to the liquid passage hole 201. This changes the position of the first piston 206 of the agitator 104 in the first piston hole 202. The first sliders 207 on both sides of the first piston 206 slide in the spiral grooves 203 on the sidewall of the first piston hole 202. Under the guidance of the spiral grooves 203, the first piston 206 rotates in the first piston hole 202, thereby driving the slide rod 204 and the paddle 205 to rotate. When the paddle 205 rotates, it can change the angle between the surface of the paddle 205 and the axis of the drive shaft 102, thereby changing the thrust exerted by the agitator 104 on the reactants in the axial direction of the drive shaft 102, thus changing the reaction time of the reactants in the reaction device. By setting multiple liquid passage holes 201 and multiple rows of first piston holes 202, the angle control device controls the amount of hydraulic oil in the multiple rows of first piston holes 202 through the multiple liquid passage holes 201. It can simultaneously and uniformly control the angle of the blade 205 of the stirring paddle 104 on the transmission shaft 102, thus eliminating the need for complex transmission components. This not only reduces the operating cost of the device and improves its reliability, but also prevents the transmission components from generating resistance to the flow of reactants in the reaction device, ensuring the pushing effect of the first stirring plate 109 on the reactants, and ensuring the stirring and mixing effect of the second stirring plate 106 and the stirring paddle 104 on the reactants.

[0044] Example 4:

[0045] Based on Example 3, in order to accurately control the tilt angle of the paddle plate 205 of the stirring paddle 104 and improve the accuracy of controlling the reaction time of the reactants in the reaction device.

[0046] like Figure 3-5 As shown, the angle control device includes a mounting base 301 and a drive mechanism. The mounting base 301 is connected to the transmission shaft 102. The mounting base 301 is provided with a plurality of second piston holes 303. Each second piston hole 303 is connected to a fluid passage hole 201 on the transmission shaft 102. A second piston 302 is slidably connected in each second piston hole 303. Hydraulic oil is provided in the second piston hole 303. The drive mechanism is connected to the second piston 302.

[0047] When changing the reaction time of the reactants in the reaction apparatus, the second piston 302 is controlled by a drive mechanism to move, thereby controlling the amount of hydraulic oil in the second piston hole 303 in the mounting base 301. Since each second piston hole 303 is connected to the first piston hole 202 on the drive shaft 102 through a fluid passage hole 201, the amount of hydraulic oil in the first piston hole 202 on the drive shaft 102 can be precisely changed when the second piston 302 moves, thereby changing the tilt angle of the impeller 205 of the agitator 104. The angle control device of this reaction apparatus can precisely regulate the amount of hydraulic oil in the first piston hole 202 on the drive shaft 102, thereby precisely regulating the tilt angle of the impeller 205 of the agitator 104, improving the accuracy of controlling the reaction time of the reactants in the reaction apparatus, and thus meeting the time requirements of polymerization reactions of reactants with different viscosities.

[0048] As a preferred option, such as Figure 3-5As shown, the driving mechanism includes a pressing mechanism and a hydraulic control circuit. The pressing mechanism includes a pressing plate 401, a first hydraulic cylinder 402, and a second hydraulic cylinder 403. The pressing plate 401 is connected to the second piston 302. A connecting plate 404 is connected to the pressing plate 401. The piston of the first hydraulic cylinder 402 is hinged to the connecting plate 404. A sliding groove 405 is provided on the connecting plate 404. A second slider 406 is slidably connected in the sliding groove 405. The second slider 406 is connected to the piston of the second hydraulic cylinder 403. The hydraulic control circuit is connected to the first hydraulic cylinder 402 and the second hydraulic cylinder 403. By controlling the movement of the first hydraulic cylinder 402 and the second hydraulic cylinder 403 of the pressing mechanism or the second pressing mechanism, the position of the pressing plate 401 of the pressing mechanism is changed, thereby changing the distance between the pressing plate 401 and the mounting base 301. Since the pressing plate 401 of the pressing mechanism is connected to the second piston 302, the position of the second piston 302 within the second piston hole 303 can be changed, thereby adjusting the angle of the stirring paddle 104. Furthermore, by controlling the movement of the first hydraulic cylinder 402 and the second hydraulic cylinder 403 of the pressing mechanism, the pistons of the first hydraulic cylinder 402 and the second hydraulic cylinder 403 move at different rates. At this time, the pressing plate 401 of the pressing mechanism tilts, and the second slider 406 connected to the piston of the second hydraulic cylinder 403 slides within the groove 405 of the connecting plate 404. Since the mounting base 301 is connected to the drive shaft 102, the mounting base 301 rotates relative to the mounting plate of the pressing mechanism along with the drive shaft 102. This causes the second piston 302 to reciprocate within the second piston hole 303 as the mounting base 301 rotates, resulting in periodic changes in the deflection angle of the impeller plate 205 of the stirring paddle 104 and its distance from the drive shaft 102. The periodic movement of the stirring paddle 104 along with the rotation of the drive shaft 102 further enhances the stirring and mixing effect of the reactants within the barrel 101, thereby improving the sufficiency of the polymerization reaction within the reaction apparatus.

[0049] As a preferred option, such as Figure 3-5 As shown, a spring 5 is provided inside the second piston hole 303. The spring 5 abuts against the piston head of the second piston 302, and the spring 5 is used to apply an elastic force to the piston head of the second piston 302 in the direction of the pressing plate 401. By providing the spring 5, a restoring force can be applied to the second piston 302, thereby ensuring that the second piston 302 is always in contact with the pressing plate 401, and ensuring that the second piston 302 can reciprocate normally under the contact of the pressing plate 401, thereby ensuring the stirring and mixing effect of the reactants in the barrel 101.

[0050] As a preferred option, such as Figure 3 , 4As shown in Figure 7, the outer edge of the third stirring plate 103 is provided with multiple grooves 7, which are evenly arranged on the outer edge of the third stirring plate 103. Each impeller 205 of the stirring paddle 104 is disposed in one groove 7. By providing multiple grooves 7 on the third stirring plate 103, when the third stirring plate 103 rotates, it can apply shear force to the reactants in the barrel 101 using the multiple grooves 7, thereby improving the mixing and dispersion effect of the reactants and making the polymerization reaction of the reactants more complete.

[0051] As a preferred option, such as Figure 1 As shown, the impeller plates 205 of the stirring paddle 104 are all elongated plate structures, and the slide rod 204 is connected to the center of the impeller plate 205. Setting the impeller plate 205 as an elongated plate structure provides better stirring effect, and when the elongated plate 205 is tilted, it can apply sufficient pushing force to the reactants inside the barrel 101, thereby preventing the reactants from staying in the barrel 101 for too long and affecting production efficiency.

[0052] As a preferred option, such as Figure 1-7 As shown, the drive shaft 102 is provided with a heat exchange hole 8, which is connected to a temperature control device. Through the heat exchange hole 8, the temperature control device can regulate the temperature of the drive shaft 102, thereby regulating the reaction temperature inside the barrel 101, ensuring that the reaction temperature within the reaction apparatus is at an optimal level.

[0053] As a preferred option, such as Figure 1 As shown, both the first stirring plate 109 and the second stirring plate 106 are provided with wear-resistant coatings. By providing wear-resistant coatings on the first stirring plate 109 and the second stirring plate 106, the wear resistance of the first stirring plate 109 and the second stirring plate 106 can be improved, thereby increasing the service life of the entire reactor.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A horizontal meshing twin-shaft continuous reactor for polymerization reactions, comprising a barrel (101), a gearbox (105), and a power unit, characterized in that, Also includes: Two meshing rotor assemblies (107) are both connected to the bearing of the barrel (101). Each rotor assembly (107) includes a drive shaft (102) and a plurality of first stirring discs (109) and a plurality of second stirring discs (106). The drive shaft (102) is connected to the gearbox (105). The drive shaft (102) is provided with a limiting strip (108) along its axial direction. The plurality of first stirring discs (109) and the plurality of second stirring discs (106) are detachably connected to the drive shaft (102). The limiting strip (108) is connected to the plurality of first stirring discs (109) and the plurality of second stirring discs (106). The limiting strip (108) is used to restrict the plurality of first stirring discs (109) and the plurality of second stirring discs (106) from rotating around the drive shaft (102). The first stirring plate (109) is a single-head, double-head or triple-head spiral structure. The first stirring plate (109) is used to stir and push the raw materials in the barrel (101); The second stirring disc (106) has a spindle-shaped structure and is used to shear and knead the raw materials in the machine barrel; The ratio of the number of the first stirring plate (109) and the second stirring plate (106) is selected according to the fluidity of the reactants after the polymerization reaction of the raw materials in the barrel. The worse the fluidity of the reactants, the higher the proportion of the first stirring plate (109). The rotor assembly (107) also includes a third stirring disc (103). Multiple third stirring discs (103) are detachably connected to the drive shaft (102). The limiting strip (108) is connected to the third stirring disc (103). The limiting strip (108) is used to restrict the multiple third stirring discs (103) from rotating around the drive shaft (102). The multiple third stirring discs (103) are all disc-shaped structures. Multiple stirring paddles (104) are pivotally connected to each third stirring disc (103). The multiple stirring paddles (104) are arranged circumferentially along the drive shaft (102). The multiple stirring paddles (104) on the two rotor assemblies (107) are arranged alternately. The stirring paddles (104) are connected to an angle control device. The angle control device is used to drive the stirring paddles (104) to rotate.

2. The horizontal meshing twin-shaft continuous reactor for polymerization reaction as described in claim 1, characterized in that, The drive shaft (102) is provided with multiple liquid passage holes (201), and the side wall of the drive shaft (102) is provided with multiple rows of first piston holes (202). Each row of first piston holes (202) corresponds to one liquid passage hole (201), and each row of first piston holes (202) is connected to its corresponding liquid passage hole (201). The side wall of each first piston hole (202) is provided with a spiral groove (203), and each first piston hole (202) is provided with a stirring paddle (104). The stirring paddle (104) includes a slide rod (204) and a paddle plate (203). 205) and a first piston (206), the first piston (206) is slidably connected in the first piston hole (202), the side wall of the first piston (206) is provided with a first slider (207), the first slider (207) is slidably connected in the spiral groove (203), one end of the slide rod (204) is connected to the first piston (206), and the other end of the slide rod (204) is connected to the paddle plate (205). The angle control device is a hydraulic control device, and the angle control device is connected to each liquid passage hole (201).

3. A horizontal interlocking twin-shaft continuous reactor for polymerization reaction as described in claim 2, characterized in that, The angle control device includes a mounting base (301) and a drive mechanism. The mounting base (301) is connected to the transmission shaft (102). The mounting base (301) is provided with a plurality of second piston holes (303). Each second piston hole (303) is connected to a fluid passage hole (201) on the transmission shaft (102). A second piston (302) is slidably connected in each second piston hole (303). Hydraulic oil is provided in the second piston hole (303). The drive mechanism is connected to the second piston (302).

4. A horizontal interlocking twin-shaft continuous reactor for polymerization reaction as described in claim 3, characterized in that, The driving mechanism includes a pressing mechanism and a hydraulic control circuit. The pressing mechanism includes a pressing plate (401), a first hydraulic cylinder (402), and a second hydraulic cylinder (403). The pressing plate (401) is connected to the second piston (302). A connecting plate (404) is connected to the pressing plate (401). The piston of the first hydraulic cylinder (402) is hinged to the connecting plate (404). A sliding groove (405) is provided on the connecting plate (404). A second slider (406) is slidably connected in the sliding groove (405). The second slider (406) is connected to the piston of the second hydraulic cylinder (403). The hydraulic control circuit is connected to the first hydraulic cylinder (402) and the second hydraulic cylinder (403).

5. A horizontal interlocking twin-shaft continuous reactor for polymerization reaction as described in claim 4, characterized in that, A spring (5) is provided in the second piston hole (303). The spring (5) abuts against the piston head of the second piston (302). The spring (5) is used to apply an elastic force toward the piston head of the second piston (302) in the direction of the pressing plate (401).

6. A horizontal interlocking twin-shaft continuous reactor for polymerization reaction as described in claim 2, characterized in that, The outer edge of the third mixing plate (103) is provided with a plurality of grooves (7), which are evenly arranged on the outer edge of the third mixing plate (103), and the blade (205) of each mixing paddle (104) is located in one groove (7).

7. A horizontal meshing twin-shaft continuous reactor for polymerization reaction as described in claim 2, characterized in that, The impeller (104) has strip-shaped blades (205), and the slide bar (204) is connected to the center of the blade (205).

8. A horizontal interlocking twin-shaft continuous reactor for polymerization reaction as described in claim 1, characterized in that, The drive shaft (102) is provided with a heat exchange hole (8), and the heat exchange hole (8) is connected to a temperature control device.

9. A horizontal interlocking twin-shaft continuous reactor for polymerization reaction as described in claim 1, characterized in that, Both the first mixing plate (109) and the second mixing plate (106) are provided with a wear-resistant coating.

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