High-temperature and high-pressure polymerization reaction kettle

Abstract

The invention discloses a high-temperature and high-pressure polymerization reaction kettle which comprises a base, a cylindrical shell is arranged above the base, a reaction kettle is fixedly arranged in the shell, a cylindrical heating cylinder is arranged in the reaction kettle, the diameter of a cylinder body at the lower end of the heating cylinder is small, and a plurality of stirring blades are annularly and fixedly arranged on the surface of the heating cylinder. A plurality of stirring shafts are annularly and fixedly arranged on the surface, away from the stirring blades, of the heating cylinder, and a plurality of balls are fixedly arranged on the surfaces of the stirring shafts. Meanwhile, water is injected into a cavity between the shell and the reaction kettle through a first drainage pipe, then clear water is heated through an electric heating wire, the interior and the exterior of the reaction kettle are heated at the same time, and in the rotating process of a stirring shaft, the stirring shaft can also heat reactants, so that the reaction speed of the reactants is increased, and the reaction effect is improved. The reaction effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of reactors, and in particular relates to a high-temperature and high-pressure polymerization reactor. Background Art

[0002] Polymerization reactor is an essential equipment for some chemical products in industrial production. In traditional polymerization reactor, when the emulsion is left standing inside the reactor body, a sedimentation reaction will occur, causing large particles to move to the bottom of the reactor body and eventually gather at the bottom. The upper layer becomes a liquid layer and the bottom layer becomes a colloidal layer. The existing stirring method is generally layered stirring, that is, different stirring devices are used to stir the liquid layer and the colloidal layer respectively. Its characteristics are uneven mixing. The direction and strength of the stirring are mainly in the horizontal position. From the bottom of the reactor to the liquid surface, the concentration gradient of various materials is very different, and the mixing is uneven. At the same time, the temperature difference at each point is also large, and the reaction conditions are also very different, which affects the product quality and the efficiency of the reactor is low.

[0003] In the prior art, a polymerization reactor with patent number CN106732268A comprises a reactor body, a vertical first stirring wheel is provided at the bottom of the reactor body, a driving member for driving the first stirring wheel to rotate is provided on the first stirring wheel, a plurality of first stirring blades are provided circumferentially on the first stirring wheel, a second stirring wheel is meshed with one side of the first stirring wheel, a plurality of second stirring blades are provided circumferentially on the second stirring wheel, the upper parts of the first stirring wheel and the second stirring wheel are both in the liquid layer, and the lower parts are both in the colloid layer; an eccentric wheel is coaxially mounted on the second stirring wheel, a crank slider mechanism is provided on the eccentric wheel, an air bag is fixed on the top of the reactor body, and the movement of the crank slider can squeeze the air bag.

[0004] When the above reactor is heated internally, it is not clearly stated that it can solve the problem of large temperature differences at various points in the reactor, which still leads to low reaction efficiency of the reactor. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a high-temperature and high-pressure polymerization reactor, which heats the interior of the reactor by internal and external heating, thereby effectively improving the heating efficiency of the reactor.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: a high-temperature and high-pressure polymerization reactor, comprising a base, a cylindrical shell is arranged above the base, a reactor is fixedly arranged inside the shell, a cylindrical heating cylinder is arranged inside the reactor, the lower end of the heating cylinder has a smaller cylinder diameter, and a plurality of stirring blades are fixedly arranged in a ring shape on its surface, a plurality of stirring shafts are fixedly arranged in a ring shape on the surface of the heating cylinder away from the stirring blades, a plurality of spheres are fixedly arranged on the surface of the stirring shaft, and the stirring shaft and the spheres are both arranged in a hollow state and communicate with the cavity in the heating cylinder.

[0007] Optionally, a cavity is provided between the outer surface of the shell and the reactor, a spiral electric heating wire is fixedly provided on the outer surface of the reactor, and a drain pipe 1 is symmetrically fixedly provided on the lower end surface of the shell, and the drain pipe 1 is communicated with the interior of the cavity.

[0008] Optionally, the upper end of the heating cylinder is rotationally matched with the upper end of the reaction kettle, and the lower end of the heating cylinder is rotationally arranged on the lower end surface of the reaction kettle.

[0009] Optionally, a retaining ring is fixedly provided on the upper end face of the reactor, a bevel gear 2 is fixedly provided on the upper end of the heating cylinder, the bevel gear 2 is rotatably provided in the retaining ring, a plurality of annular gear blocks are fixedly provided on the lower end face of the bevel gear 2, a plurality of annular gear grooves are provided on the upper end face of the reactor near the bevel gear 2, and the annular gear blocks are rotatably provided in the annular gear grooves.

[0010] Optionally, a fixed shaft is provided in the heating tube, a bearing is fixedly provided on the inner bottom surface of the heating tube, and the inner ring of the bearing at the lower end of the fixed shaft is fixedly fitted.

[0011] Optionally, two drainage pipes are symmetrically arranged on both sides of the fixed shaft, and a connecting plate is fixedly arranged on the lower end surface of the fixed shaft, and the connecting plate is fixed to the two drainage pipes on both sides.

[0012] Optionally, two groups of mounting tubes are symmetrically fixedly arranged on the surface of the fixed shaft away from the connecting plate, a heating rod is fixedly arranged in one group of mounting tubes, and a temperature detector is fixedly arranged in the other group of mounting tubes.

[0013] Optionally, a cylindrical groove is formed on the upper end surface of the fixed shaft, and the mounting tube is in communication with the cylindrical groove.

[0014] In summary, compared with the prior art, the high temperature and high pressure polymerization reactor provided by the present invention has the following beneficial effects: 1. In the present invention, clean water is injected into the heating cylinder through the second drain pipe, and then the clean water is heated by the heating rod. At the same time, water is injected into the cavity between the shell and the reactor through the first drain pipe, and then the clean water is heated by the electric heating wire, so that the inside and outside of the reactor are heated at the same time, and during the rotation of the stirring shaft, the stirring shaft will also heat the reactants, thereby increasing the reaction speed of the reactants and improving the reaction effect; 2. In the present invention, after the heating reaction stage is completed, the hot water can be discharged through the drain pipe 1 and the drain pipe 2 at the same time, and then clean water can be re-injected to cool the reactor to achieve a rapid cooling effect and improve the production quality of the reactants. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall and structural schematic diagram of the present invention; Figure 2 The overall cross-sectional structure of the present invention is shown in FIG. Figure 1 ; Figure 3 The overall cross-sectional structure of the present invention is shown in FIG. Figure 2 ; Figure 4 It is a schematic diagram of the enlarged structure of A of the present invention; Figure 5 It is a schematic diagram of the enlarged structure of B of the present invention; Figure 6 The structure of some parts of the present invention is shown in FIG. Figure 1 ; Figure 7 The structure of some parts of the present invention is shown in FIG. Figure 2 ; In the figure: 1. base; 4. electric valve member; 11. U-shaped support frame; 12. support ring; 13. support cylinder; 131. motor; 132. bevel gear one; 2. housing; 211. feed pipe; 212. pressurizing port; 213. retaining ring; 214. annular tooth groove; 215. feed through groove; 21. reactor; 22. electric heating wire; 23. drain pipe one; 24. heating cylinder; 241. stirring blade; 25. fixed shaft; 251. cylindrical groove; 252. mounting cylinder; 253. heating rod; 254. temperature detector; 26. drain pipe two; 261. connecting plate; 262. bearing; 263. baffle; 27. stirring shaft; 271. ball; 3. bevel gear two; 31. cover; 311. annular gear block; 32. connecting shaft. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] refer to Figure 1-7A high-temperature and high-pressure polymerization reactor comprises a base 1, a U-shaped support frame 11 is fixedly arranged on the upper surface of the base 1, a support ring 12 is fixedly arranged on the inner side of the U-shaped support frame 11, a cylindrical shell 2 is fixedly arranged in the support ring 12, a reactor 21 is fixedly arranged inside the cylindrical shell 2, an electric valve member 4 is fixedly arranged at the lower end of the reactor 21, a feed pipe 211 is fixedly arranged at the upper end of the reactor 21 away from the bevel gear 23, a discharge port is provided on the lower end surface of the reactor 21, the discharge port is connected with the electric door and the valve member, the electric valve member 4 is used to control the discharge of materials in the reactor 21, and the electric valve member 4 is at a certain distance from the upper surface of the base 1, so as to facilitate the external collection mechanism to collect the materials in the reactor 21, and a pressurizing port 212 is provided on the upper end surface of the reactor 21 away from the feed pipe 211 to pressurize the inside of the reactor 21.

[0018] refer to Figure 2 A cavity is provided between the outer side of the shell 2 and the reactor 21, and the cavity is used to store heating water. A drain pipe 23 is symmetrically fixedly provided on the lower end surface of the shell 2. The drain pipe 23 is connected to the inside of the cavity, and the outer end of the drain pipe 23 on one side is connected to a water pump, and the outer end of the drain pipe 23 on the other side is connected to a drainage pump.

[0019] refer to Figure 2 A spiral electric heating wire 22 is fixedly provided on the outer side of the reactor 21. The electric heating wire 22 heats the water injected into the cavity, so that the temperature inside the reactor 21 is increased, thereby improving the reaction speed of the material in the reactor 21.

[0020] Furthermore, water is injected into the cavity through a water pump, and then the electric heating wire 22 is used to heat the water, and the reactor 21 works. After the reaction in the reactor 21 is completed, it needs to be cooled. At this time, the water in the cavity is discharged through an external drainage pump, and then the cavity is injected with water again through the water pump. At this time, the injected water can quickly cool down the reactor 21, thereby improving the reaction effect of the material in the reactor 21.

[0021] refer to Figure 2-4 A cylindrical heating tube 24 is arranged in the reaction kettle 21 . The upper end of the heating tube 24 is rotatably matched with the upper end of the reaction kettle 21 , and the lower end of the heating tube 24 is rotatably arranged on the lower end surface of the reaction kettle 21 .

[0022] refer to Figure 1-7A retaining ring 213 is fixedly provided on the upper end surface of the reactor 21, a bevel gear 23 is fixedly provided on the upper end of the heating cylinder 24, the bevel gear 23 is rotatably provided in the retaining ring 213, a plurality of annular gear blocks 311 are fixedly provided on the lower end surface of the bevel gear 23, a plurality of annular tooth grooves 214 are provided on the upper end surface of the reactor 21 near the bevel gear 23, the annular gear blocks 311 are rotatably provided in the annular tooth grooves 214, and in this way, the retaining ring 213 can be used together to enhance the sealing effect of the reactor 21.

[0023] refer to Figure 3 A support tube 13 is symmetrically fixed on the two inner side surfaces of the U-shaped support frame 11, and a motor 131 is fixed inside the support tube 13. The position of the motor 131 corresponds to the bevel gear 23, and a bevel gear 132 is fixed on the outer end surface of the output shaft of the motor 131. The bevel gear 132 is meshed with the bevel gear 23, and the bevel gear 132 presses the bevel gear 23, which can further improve the sealing effect of the reactor 21.

[0024] refer to Figure 1-6 The lower end of the heating cylinder 24 has a smaller diameter, and a plurality of stirring blades 241 are fixedly arranged in a ring shape on its surface. The stirring blades 241 can stir the solid material at the bottom of the reactor 21. A plurality of stirring shafts 27 are fixedly arranged in a ring shape on the surface of the heating cylinder 24 away from the stirring blades 241. The stirring shafts 27 are used to better stir the solid-liquid coexisting materials in the middle and upper layers of the reactor 21 and the liquid materials.

[0025] refer to Figure 6 A plurality of spheres 271 are fixedly arranged on the surface of the stirring shaft 27, and the spheres 271 are used to increase the contact area with the material and improve the heating speed of the material. The stirring shaft 27 and the spheres 271 are both arranged to be hollow and communicate with the cavity in the heating cylinder 24, so that the water injected into the heating cylinder 24 can enter the stirring shaft 27 conveniently.

[0026] refer to Figure 5 A fixed shaft 25 is arranged inside the heating tube 24 , a bearing 262 is fixedly arranged on the inner bottom surface of the heating tube 24 , and the lower end of the fixed shaft 25 is fixedly arranged on the inner ring of the bearing 262 , so that the fixed shaft 25 is not affected by the rotation of the heating tube 24 .

[0027] refer to Figure 2 , 5 A circular baffle 263 is fixedly arranged on the surface of the fixed shaft 25 above the bearing 262. The circular baffle 263 is rotatably matched with the inner wall of the heating tube 24. The baffle ring 213 is used to prevent the water in the heating tube 24 from contacting the bearing 262, thereby increasing the service life of the bearing 262.

[0028] refer to Figure 1-7Drain pipes 26 are symmetrically arranged on both sides of the fixed shaft 25, and a connecting plate 261 is fixedly arranged on the lower end surface of the fixed shaft 25. The connecting plate 261 is fixed to the drain pipes 26 on both sides to support the drain pipes 26, and the lower end of the drain pipe 26 is a certain distance away from the baffle 263. The outer end of the drain pipe 26 on one side is connected to a water pump, and the outer end of the drain pipe 26 on the other side is connected to a drainage pump. The water pump is used to inject water into the heating cylinder 24, and the drainage pump is used to drain the water in the heating cylinder 24.

[0029] refer to Figure 1-4 A through groove is provided in the middle of the bevel gear 2 3, and a T-shaped cover 31 is rotatably provided above the through groove. A connecting shaft 32 is symmetrically provided above the cover 31 and between the U-shaped support frame 11. The connecting shaft 32 is fixed to the cover 31 and the U-shaped connecting shaft 32 by bolts, so as to further enhance the sealing effect of the heating tube 24.

[0030] refer to Figure 7 Two groups of mounting tubes 252 are symmetrically fixedly arranged on the surface of the fixed shaft 25 away from the connecting plate 261. A heating rod 253 is fixedly arranged in one group of mounting tubes 252, and a temperature detector 254 is fixedly arranged in the other group of mounting tubes 252. The water in the heating tube 24 is heated by the heating rod 253, and the water temperature is detected by the temperature detector 254.

[0031] Furthermore, a plurality of temperature detectors 254 are arranged at different heights, so that the temperature in the heating tube 24 can be detected more accurately, and the reaction in the reactor 21 can be more complete.

[0032] refer to Figure 1-2 A cylindrical groove 251 is formed on the upper end surface of the fixed shaft 25 , and the mounting tube 252 is communicated with the cylindrical groove 251 , so as to facilitate connecting the heating rod 253 and the temperature detector 254 with electric wires and data cables, so as to control the temperature of the heating rod 253 .

[0033] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0034] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0035] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A high temperature and high pressure polymerization reactor, characterized in that: The invention comprises a base (1), a cylindrical outer shell (2) is arranged above the base (1), a reaction kettle (21) is fixedly arranged inside the outer shell (2), and a cylindrical heating cylinder (24) is arranged inside the reaction kettle (21). The lower end of the heating cylinder (24) has a relatively small diameter, and a plurality of stirring blades (241) are fixedly arranged in a ring shape on its surface; a plurality of stirring shafts (27) are fixedly arranged in a ring shape on the surface of the heating cylinder (24) away from the stirring blades (241); a plurality of spheres (271) are fixedly arranged on the surface of the stirring shaft (27); the stirring shaft (27) and the spheres (271) are both arranged in a hollow state and communicate with the cavity in the heating cylinder (24).

2. A high temperature and high pressure polymerization reactor according to claim 1, characterized in that: A cavity is provided between the outer surface of the shell (2) and the reaction kettle (21); a spiral electric heating wire (22) is fixedly provided on the outer surface of the reaction kettle (21); a drainage pipe (23) is symmetrically fixedly provided on the lower end surface of the shell (2); and the drainage pipe (23) is communicated with the interior of the cavity.

3. A high temperature and high pressure polymerization reactor according to claim 1, characterized in that: The upper end of the heating cylinder (24) is rotatably matched with the upper end of the reaction kettle (21), and the lower end of the heating cylinder (24) is rotatably arranged on the lower end surface of the reaction kettle (21).

4. A high temperature and high pressure polymerization reactor according to claim 1, characterized in that: A retaining ring (213) is fixedly arranged on the upper end surface of the reaction kettle (21), a bevel gear 2 (3) is fixedly arranged on the upper end of the heating cylinder (24), the bevel gear 2 (3) is rotatably arranged in the retaining ring (213), a plurality of annular tooth blocks (311) are fixedly arranged on the lower end surface of the bevel gear 2 (3), a plurality of annular tooth grooves (214) are provided on the upper end surface of the reaction kettle (21) near the bevel gear 2 (3), the annular tooth blocks (311) are rotatably arranged in the annular tooth grooves (214).

5. A high temperature and high pressure polymerization reactor according to claim 1, characterized in that: A fixed shaft (25) is arranged inside the heating tube (24), a bearing (262) is fixedly arranged on the inner bottom surface of the heating tube (24), and the inner ring of the lower end bearing (262) of the fixed shaft (25) is fixedly fitted.

6. A high temperature and high pressure polymerization reactor according to claim 5, characterized in that: Drain pipes 2 (26) are symmetrically arranged on both sides of the fixed shaft (25), and a connecting plate (261) is fixedly arranged on the lower end surface of the fixed shaft (25), and the connecting plate (261) is fixed to the drain pipes 2 (26) on both sides.

7. A high temperature and high pressure polymerization reactor according to claim 5, characterized in that: Two groups of mounting tubes (252) are symmetrically fixedly arranged on a surface of the fixed shaft (25) away from the connecting plate (261), a heating rod (253) is fixedly arranged in one group of mounting tubes (252), and a temperature detector (254) is fixedly arranged in the other group of mounting tubes (252).

8. A high temperature and high pressure polymerization reactor according to claim 5, characterized in that: The upper end surface of the fixed shaft (25) is provided with a cylindrical groove (251), and the mounting tube (252) is in communication with the cylindrical groove (251).

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