A system for the production of bromoalkanes

Abstract

The application discloses a kind of production systems of brominated alkane, including sulfuration dispersion tank, reaction synthesis tank, pickling tower, alkali washing tower and drying tower, the drying tower is equipped with overhead condenser;The inside of the sulfuration dispersion tank is equipped with stirring mechanism, the stirring mechanism includes lifting vertical shaft, the top of sulfuration dispersion tank is equipped with vertical drive box, and the output end of vertical drive box is fixed with the top of lifting vertical shaft;The bottom of lifting vertical shaft extends to the inside of sulfuration dispersion tank and is fixed with lifting support box.The core innovation of the application is that the compound stirring mechanism of lifting, radial telescopic and self-rotating is arranged in the sulfuration dispersion tank: lifting vertical shaft and bottom lifting support box are driven by vertical drive box to move up and down;Gear, rack and slide rail linkage structure are arranged in support box, so that multiple mixers realize horizontal telescopic and rotation synchronously during lifting process, form three-dimensional turbulence, significantly improve the dispersion efficiency of sulfur and bromine in methanol.

Description

Technical Field

[0001] This invention relates to the field of brominated alkane production technology, and more particularly to a brominated alkane production system. Background Technology

[0002] Bromoalkanes (including methyl bromide, ethyl bromide, propyl bromide, etc.) are important organic synthesis intermediates, widely used in pesticides, pharmaceuticals, flame retardants, and fine chemicals. In traditional bromoalkane production processes, bromine is typically reacted with the corresponding alkyl alcohol (methanol, ethanol, propanol) under sulfur catalysis to produce a crude product, which is then subjected to post-processing steps such as acid washing, alkali washing, drying, and condensation to obtain the final product. However, existing production systems generally suffer from the following problems:

[0003] 1. In the sulfurization and dispersion stage, uneven mixing of materials can easily lead to incomplete reaction, affecting product yield and purity. Traditional agitators are mostly fixed or only rotate, making it difficult to effectively disturb the entire area inside the tank, especially in high viscosity or heterogeneous systems.

[0004] 2. Adding raw materials directly from the top can easily lead to excessively high local concentrations, causing side reactions or heat accumulation, posing safety hazards. Furthermore, reaction residues tend to adhere to the tank walls, making manual cleaning time-consuming and labor-intensive, and affecting continuous production.

[0005] Although some patents have attempted to improve mixing methods or optimize processes, most have not solved the integrated problems of dynamic dispersion, dispersed feeding, self-cleaning, and safety interlocking, making it difficult to balance efficiency, safety, and environmental protection. Summary of the Invention

[0006] To address the problems mentioned in the background section, the present invention provides a production system for bromoalkane.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A production system for brominated alkanes includes a sulfidation dispersion tank, a reaction synthesis tank, an acid washing tower, an alkali washing tower, and a drying tower, wherein the drying tower is equipped with a top condenser.

[0009] Bromine and sulfur are added to a sulfurization dispersion tank in a certain proportion, and a dispersion is obtained after dispersion is completed. Depending on the target product (methyl bromide, ethyl bromide, propyl bromide), the above dispersion is added dropwise to a reaction synthesis tank 2 containing a pre-added quantitative amount of the corresponding alkyl alcohol (methanol, ethanol, propyl alcohol). The reaction temperature and dropping rate are strictly controlled to produce the corresponding crude bromoalkane (crude methyl bromide, crude ethyl bromide, or crude propyl bromide).

[0010] The crude product is sequentially passed through an acid washing tower, an alkali washing tower, and a drying tower for washing, and then condensed to obtain a high-purity target bromoalkane product (methyl bromide, ethyl bromide, or propyl bromide). The bromoalkane can be used as a raw material for the production of bromine quaternary ammonium salts or other chemical products.

[0011] The vulcanizing dispersion tank is equipped with a stirring mechanism, which includes a lifting vertical shaft. A vertical drive box is provided at the top of the vulcanizing dispersion tank, and the output end of the vertical drive box is fixed to the top of the lifting vertical shaft.

[0012] The bottom end of the lifting vertical shaft extends into the interior of the vulcanization dispersion tank and is fixed with a lifting support box. Multiple agitators are installed at the bottom end.

[0013] The bottom inner wall of the lifting support box has multiple sliding ports. The bottom of the lifting support box is circular. The sliding ports are arranged in a radial array along the lifting support box. Each sliding port corresponds to a stirrer. The top of the stirrer extends into the interior of the lifting support box. Multiple support bars are slidably installed on the bottom inner wall of the lifting support box via slide rails. Each support bar corresponds to a stirrer. The top of the stirrer is rotatably connected to the support bar.

[0014] Preferably, a first limiting post is fixed to the top side of the end of the support bar away from the agitator, and a first gear is rotatably installed on the inner wall of the bottom end of the lifting support box. The first gear has an arc-shaped limiting port corresponding to a plurality of first limiting posts, and the first limiting post passes through the arc-shaped limiting port to penetrate the first gear.

[0015] Preferably, a second gear is rotatably mounted on the inner wall of the bottom end of the lifting support box. The diameter of the second gear is smaller than that of the first gear, and the first gear meshes with the second gear. A transmission column is fixed to the top of the second gear.

[0016] Preferably, a fixing rod is fixed on the inner wall of the top of the vulcanizing dispersion tank, the inside of the transmission column is hollow, and the bottom end of the fixing rod extends into the inside of the transmission column. A spiral guide groove is provided on the inner side wall of the transmission column, and a horizontally arranged second limiting post is fixed on one side of the bottom end of the transmission column. One end of the second limiting post extends into the spiral guide groove.

[0017] Preferably, the vertical drive box has two vertically arranged reciprocating screws rotatably mounted inside, the top end of the lifting vertical shaft extends into the vertical drive box and is fixed with a lifting plate, and the lifting vertical shaft passes through the lifting plate through a threaded hole.

[0018] Preferably, a third gear is fixed to the top of the reciprocating lead screw, a rotary motor is fixed to the top of the vertical drive box, a fourth gear is fixed to the output shaft of the rotary motor, the fourth gear is located between the two third gears, and both third gears mesh with the fourth gear.

[0019] Preferably, multiple racks are fixed on the inner wall of the bottom end of the lifting support box, with each rack corresponding to a sliding port, and a fifth gear is fixed at the top of the stirrer, which meshes with the racks.

[0020] Preferably, the stirrer is externally rotatably equipped with a blocking strip, the top of which is in close contact with the bottom of the lifting support box, and the length and width of the blocking strip are greater than the length and width of the sliding port. Limiting protrusions are fixed on both sides of the bottom of the lifting support box located at the blocking strip.

[0021] Preferably, the vulcanizing dispersion tank is provided with feeding ports on both sides of the top, and an annular baffle is fixed at the bottom of the feeding port. An annular distributor is rotatably installed at the bottom of the annular baffle. Feeding distribution pipes are connected to both sides of the bottom of the annular distributor. Multiple spray holes are opened on the feeding distribution pipes, and a cleaning scraper is fixed on the feeding distribution pipes.

[0022] Preferably, a long gear is fixed to the outside of the transmission column, and a toothed ring is fixed to the bottom end of the annular distributor through a connecting rod, with the long gear meshing with the toothed ring.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. The stirrer can not only move up and down with the vertical shaft, but also achieve horizontal radial extension and rotation during the lifting process through gear, rack and helical guide mechanism, forming three-dimensional disturbance, which greatly improves the dispersion uniformity of sulfur and bromine in methanol, shortens the reaction time and increases the conversion rate.

[0025] 2. The transmission column drives the long gear to mesh with the gear ring, so that the ring distributor rotates synchronously during the lifting and lowering process. In conjunction with the spray holes on the feeding distribution pipe, dynamic and uniform circumferential material distribution is achieved, avoiding local over-concentration, reducing side reactions, and improving process stability.

[0026] 3. The cleaning scraper integrated on the feeding distribution pipe rotates synchronously with the ring distributor, which can scrape off the deposits on the inner wall of the tank in real time, prevent scaling and cross-contamination, ensure the cleanliness of continuous production, and reduce maintenance costs.

[0027] 4. The agitator is equipped with a movable blocking strip and a limiting protrusion at the sliding port to ensure that the opening is always covered during the extension and retraction process, effectively isolating materials from entering the lifting support box and protecting the precision transmission components from corrosion. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall process of the present invention;

[0030] Figure 2 This is a three-dimensional sectional view of the sulfurization dispersion tank of the present invention;

[0031] Figure 3 This is a front-view sectional view of the sulfidation dispersion tank of the present invention;

[0032] Figure 4 for Figure 3 Enlarged detail image of position A in the middle;

[0033] Figure 5 This is a top-view sectional view of the lifting support box in the vulcanization dispersion tank of the present invention;

[0034] Figure 6 This is a perspective view of the internal structure of the lifting support box of the present invention;

[0035] Figure 7 for Figure 6 Enlarged detail image of position B in the middle;

[0036] Figure 8 This is a schematic diagram of the lifting support box structure in the vulcanization dispersion tank of the present invention from an elevation view.

[0037] Figure 9 This is a schematic diagram of the stirrer structure in the vulcanization dispersion tank of the present invention;

[0038] In the diagram: 1. Sulfidation dispersion tank; 2. Reaction synthesis tank; 3. Acid washing tower; 4. Alkali washing tower; 5. Drying tower; 501. Tower top condenser; 6. Vertical drive box; 601. Lifting plate; 602. Reciprocating screw; 603. Third gear; 604. Rotary motor; 605. Fourth gear; 7. Annular distributor; 701. Feed distribution pipe; 702. Spray hole; 704. Feed port; 705. Annular baffle; 705. Cleaning scraper; 706. Connecting rod; 707. Gear ring; 8. Fixed rod; 801. Transmission column; 802. Long gear; 803. Second limiting post; 804. Helical guide groove; 9. Lifting support box; 901. Agitator; 902. Slide rail; 903. Support bar; 904. First limiting post; 905. First gear; 906. Arc-shaped limiting port; 907. Sliding port; 908. Fifth gear; 909. Rack; 910. Blocking bar; 911. Limiting protrusion; 912. Second gear. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1

[0041] Reference Figure 1-9 A production system for bromoalkanes includes a sulfidation dispersion tank 1, a reaction synthesis tank 2, an acid washing tower 3, an alkali washing tower 4, and a drying tower 5, wherein the drying tower 5 is equipped with a top condenser 501.

[0042] Bromine and sulfur are added to a sulfurization dispersion tank 1 in a certain proportion. After dispersion is completed, a dispersion is obtained. Depending on the target product, the above dispersion is added dropwise to a reaction synthesis tank 2, to which a quantitative amount of the corresponding alkyl alcohol has been added beforehand. The reaction temperature and dropping rate are strictly controlled to produce the corresponding crude bromoalkane.

[0043] The crude product is sequentially passed through acid washing tower 3 for acid washing, alkali washing tower 4 for alkali washing, and drying tower 5 for drying. After condensation, a high-purity target bromoalkane product is obtained. The bromoalkane can be used as a raw material for the production of bromine quaternary ammonium salts or other chemical products.

[0044] The vulcanizing dispersion tank 1 is equipped with a stirring mechanism, which includes a lifting vertical shaft 101. The top of the vulcanizing dispersion tank 1 is equipped with a vertical drive box 6, and the output end of the vertical drive box 6 is fixed to the top of the lifting vertical shaft 101.

[0045] The bottom end of the lifting vertical shaft 101 extends into the interior of the vulcanization dispersion tank 1 and is fixed with a lifting support box 9. Multiple agitators 901 are installed at the bottom end of the shaft. During dispersion, the vertical drive box 6 drives the lifting vertical shaft 101 to move up and down repeatedly, thereby driving the lifting support box 9 and the agitators 901 to move up and down repeatedly, thereby disturbing the material and achieving the purpose of accelerating dispersion.

[0046] Multiple sliding ports 907 are provided on the inner wall of the bottom end of the lifting support box 9. The bottom end of the lifting support box 9 is circular. The sliding ports 907 are arranged in a radial array along the lifting support box 9. Each sliding port 907 corresponds to a stirrer 901. The top of the stirrer 901 extends into the interior of the lifting support box 9. Multiple support bars 903 are slidably installed on the inner wall of the bottom end of the lifting support box 9 via slide rails 902. Each support bar 903 corresponds to a stirrer 901. The top of the stirrer 901 is rotatably connected to the support bar 903. Since the support bar 903 can slide horizontally within the slide rails 902, the horizontal position of the stirrer 901 can also be changed while it is being lifted and lowered, thereby further improving the dispersion effect and making the space covered by the stirrer 901 larger.

[0047] Example 2

[0048] Reference Figure 1-9 The difference between this embodiment and embodiment 1 is that a first limiting post 904 is fixed to the top side of the end of the support bar 903 away from the stirrer 901, and a first gear 905 is rotatably installed on the inner wall of the bottom end of the lifting support box 9. The first gear 905 has an arc-shaped limiting port 906 that corresponds one-to-one with the multiple first limiting posts 904. The first limiting post 904 passes through the first gear 905 through the arc-shaped limiting port 906. When the first gear 905 rotates, due to the limiting effect of the arc-shaped limiting port 906, the support bar 903 can be driven to slide along the slide rail 902 through the first limiting post 904. When the first gear 905 swings back and forth, it can drive the support bar 903 to move horizontally back and forth, thereby driving the stirrer 901 to move horizontally back and forth.

[0049] To drive the first gear 905 to reciprocate, a second gear 912 is rotatably mounted on the inner wall of the bottom end of the lifting support box 9. The diameter of the second gear 912 is smaller than that of the first gear 905, and the first gear 905 meshes with the second gear 912. A transmission column 801 is fixed to the top of the second gear 912, and a fixing rod 8 is fixed to the inner wall of the top end of the vulcanizing dispersion tank 1. The transmission column 801 is hollow inside, and the bottom end of the fixing rod 8 extends into the interior of the transmission column 801. A spiral guide groove 804 is provided on the inner side wall of the transmission column 801, and a horizontally arranged second limiting column 803 is fixed to one side of the bottom end of the transmission column 801. One end of the second limiting post 803 extends into the spiral guide groove 804. When the lifting support box 9 moves up and down, the fixed rod 8 moves up and down relative to the transmission post 801. Thus, through the transmission cooperation between the spiral guide groove 804 and the second limiting post 803, the transmission post 801 is driven to rotate, which in turn drives the second gear 912 to rotate (the direction of rotation depends on the direction of the lifting support box 9). Since the diameter of the second gear 912 is smaller than that of the first gear 905, when the second gear 912 rotates forward and backward multiple times, it will drive the first gear 905 to swing back and forth within a small angle range, thereby driving the stirrer 901 to move horizontally back and forth.

[0050] Example 3

[0051] Reference Figure 1-9 The difference between this embodiment and Embodiment 1 is that two vertically arranged reciprocating screws 602 are rotatably installed inside the vertical drive box 6. The top end of the lifting vertical shaft 101 extends into the vertical drive box 6 and is fixed with a lifting plate 601. The lifting vertical shaft 101 passes through the lifting plate 601 through a threaded hole. A third gear 603 is fixed to the top end of the reciprocating screws 602. A rotary motor 604 is fixed to the top end of the vertical drive box 6. A fourth gear 605 is fixed to the output shaft of the rotary motor 604. The fourth gear 605 is located between the two third gears 603, and both third gears 603 mesh with the fourth gear 605. When the rotary motor 604 is turned on, it can drive the fourth gear 605 to rotate. Then, through the meshing of the fourth gear 605 and the third gear 603, it drives the two reciprocating screws 602 to rotate synchronously, thereby driving the lifting plate 601 to move up and down reciprocally, and thus driving the lifting vertical shaft 101 to move up and down reciprocally.

[0052] Example 4

[0053] Reference Figure 1-9The difference between this embodiment and embodiment 2 is that multiple racks 909 are fixed on the inner wall of the bottom end of the lifting support box 9. The racks 909 correspond one-to-one with the sliding ports 907. A fifth gear 908 is fixed at the top of the stirrer 901. The fifth gear 908 meshes with the racks 909. When the stirrer 901 moves horizontally back and forth, the fifth gear 908 at the top of the stirrer 901 will move horizontally back and forth along the racks 909, thereby driving the stirrer 901 to rotate during the horizontal movement. The rotation direction is different during the back and forth movement.

[0054] The agitator 901 is externally mounted with a blocking strip 910. The top of the blocking strip 910 is in close contact with the bottom of the lifting support box 9, and the length and width of the blocking strip 910 are greater than the length and width of the sliding port 907. Limiting protrusions 911 are fixed on both sides of the bottom of the lifting support box 9, which can ensure that the blocking strip 910 can only move back and forth along the direction of the sliding port 907. The blocking strip 910 can block the sliding port 907. The length of the blocking strip 910 can ensure that the blocking strip 910 always covers the sliding port 907 during the horizontal movement of the agitator 901, thereby maintaining the relative sealing state of the lifting support box 9 and preventing materials from entering the interior of the lifting support box 9 and causing pollution and corrosion to the internal transmission components of the lifting support box 9.

[0055] Example 4

[0056] Reference Figure 1-9 The difference between this embodiment and Embodiment 2 is that the top of the vulcanizing dispersion tank 1 is provided with feeding ports 704 on both sides. An annular baffle 705 is fixed to the bottom of the feeding port 704. An annular distributor 7 is rotatably mounted on the bottom of the annular baffle 705. Feeding distribution pipes 701 are connected to both sides of the bottom of the annular distributor 7. Multiple spray holes 702 are opened on the feeding distribution pipes 701, and a cleaning scraper 705 is fixed on the feeding distribution pipes 701. A long gear 802 is fixed to the outside of the transmission column 801. A gear ring 707 is fixed to the bottom of the annular distributor 7 via a connecting rod 706. The long gear 802 meshes with the gear ring 707. When the long gear 802... 2. It can ensure that the transmission column 801 remains engaged with the gear ring 707 during the vertical lifting and lowering movement of the lifting support box 9. Thus, during the lifting and rotation, it can drive the annular distributor 7 to rotate by engaging with the gear ring 707. The raw material is fed in through the feeding port 704, then enters the feeding distribution pipe 701 through the annular distributor 7, and is then sprayed out from the spray hole 702. As the feeding distribution pipe 701 moves continuously, the feeding uniformity can be improved, further improving the dispersion efficiency. The cleaning scraper 705 can also move with the feeding distribution pipe 701 to clean and scrape the inner wall of the vulcanization dispersion tank 1, achieving the purpose of automatic cleaning.

[0057] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0058] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0060] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A production system for brominated alkanes, comprising a sulfidation dispersion tank (1), a reaction synthesis tank (2), an acid washing tower (3), an alkali washing tower (4), and a drying tower (5), characterized in that: The drying tower (5) is equipped with a top condenser (501). The vulcanizing dispersion tank (1) is equipped with a stirring mechanism inside. The stirring mechanism includes a lifting vertical shaft (101). A vertical drive box (6) is provided at the top of the vulcanizing dispersion tank (1). The output end of the vertical drive box (6) is fixed to the top of the lifting vertical shaft (101). The bottom end of the lifting vertical shaft (101) extends into the interior of the vulcanization dispersion tank (1) and is fixed with a lifting support box (9). Multiple agitators (901) are installed at the bottom end. The bottom inner wall of the lifting support box (9) is provided with multiple sliding ports (907). The bottom of the lifting support box (9) is circular. The sliding ports (907) are arranged in a radial array along the lifting support box (9). The sliding ports (907) correspond one-to-one with the stirrer (901). The top of the stirrer (901) extends into the interior of the lifting support box (9). Multiple support bars (903) are slidably installed on the bottom inner wall of the lifting support box (9) via slide rails (902). The support bars (903) correspond one-to-one with the stirrer (901). The top of the stirrer (901) is rotatably connected to the support bars (903).

2. The production system for brominated alkanes according to claim 1, characterized in that: The support bar (903) is fixed with a first limiting post (904) on the top side of the end away from the stirrer (901). A first gear (905) is rotatably installed on the inner wall of the bottom end of the lifting support box (9). An arc-shaped limiting port (906) corresponding to multiple first limiting posts (904) is opened on the first gear (905). The first limiting post (904) passes through the first gear (905) through the arc-shaped limiting port (906).

3. The production system for brominated alkanes according to claim 2, characterized in that: The bottom inner wall of the lifting support box (9) is also rotatably mounted with a second gear (912). The diameter of the second gear (912) is smaller than that of the first gear (905), and the first gear (905) meshes with the second gear (912). The top of the second gear (912) is fixed with a transmission column (801).

4. The production system for brominated alkanes according to claim 3, characterized in that: A fixing rod (8) is fixed on the inner wall of the top of the vulcanizing dispersion tank (1). The inside of the transmission column (801) is hollow, and the bottom end of the fixing rod (8) extends into the inside of the transmission column (801). A spiral guide groove (804) is provided on the inner side wall of the transmission column (801). A horizontally arranged second limiting post (803) is fixed on one side of the bottom end of the transmission column (801). One end of the second limiting post (803) extends into the spiral guide groove (804).

5. The production system for brominated alkanes according to claim 1, characterized in that: The vertical drive box (6) is internally mounted with two vertically arranged reciprocating screws (602). The top end of the lifting vertical shaft (101) extends into the vertical drive box (6) and is fixed with a lifting plate (601). The lifting vertical shaft (101) passes through the lifting plate (601) through a threaded hole.

6. The production system for brominated alkanes according to claim 5, characterized in that: The top end of the reciprocating screw (602) is fixed with a third gear (603), the top end of the vertical drive box (6) is fixed with a rotary motor (604), the output shaft of the rotary motor (604) is fixed with a fourth gear (605), the fourth gear (605) is located between the two third gears (603), and both third gears (603) mesh with the fourth gear (605).

7. The production system for brominated alkanes according to claim 4, characterized in that: Multiple racks (909) are fixed on the inner wall of the bottom end of the lifting support box (9). The racks (909) correspond one-to-one with the sliding port (907). The top of the stirrer (901) is fixed with a fifth gear (908), which meshes with the racks (909).

8. The production system for brominated alkanes according to claim 7, characterized in that: The stirrer (901) is rotatably mounted with a blocking strip (910). The top of the blocking strip (910) is in close contact with the bottom of the lifting support box (9). The length and width of the blocking strip (910) are greater than the length and width of the sliding port (907). The bottom of the lifting support box (9) is fixed with limit protrusions (911) on both sides of the blocking strip (910).

9. The production system for brominated alkanes according to claim 4, characterized in that: The vulcanizing dispersion tank (1) has feeding ports (704) on both sides of the top. An annular baffle (705) is fixed at the bottom of the feeding port (704). An annular distributor (7) is rotatably installed at the bottom of the annular baffle (705). Feeding distribution pipes (701) are connected to both sides of the bottom of the annular distributor (7). Multiple spray holes (702) are opened on the feeding distribution pipe (701), and a cleaning scraper (705) is fixed on the feeding distribution pipe (701).

10. A production system for brominated alkanes according to claim 9, characterized in that: A long gear (802) is fixed to the outside of the transmission column (801), and a toothed ring (707) is fixed to the bottom end of the annular distributor (7) through a connecting rod (706). The long gear (802) meshes with the toothed ring (707).

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