Reaction kettle for preparing methyl octabromoether

Abstract

The utility model discloses a reaction kettle for preparing methyl octabromoether, and relates to the technical field of reaction tank devices. The reaction tank comprises a reaction tank main body, the feeding pipe is welded at the top end of the reaction tank main body; the base is fixed at the bottom end of the reaction tank main body through bolts; and a scraping mechanism. According to the utility model, the scraping mechanism is arranged; through downward movement of the moving rod and the scraping ring, materials adhered to the top end of the inner wall of the reaction tank body can be scraped into mixed liquid below, when the scraping ring is scraped to the position flush with the liquid level, the mixed liquid is driven to rotate integrally through rotation of the stirring blades, the mixed liquid level has impact force through rotation of the stirring blades, and the materials at the bottom end of the scraping ring are separated through the impact force; furthermore, the proportion of the materials in the mixed liquid is normal, the normal reaction process of the materials is facilitated, meanwhile, the product obtained after the material reaction reaches the preset standard, and the material reaction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction tank devices, in particular to a reaction kettle for preparing methyl octabromoether. Background Art

[0002] Octabromoether is a low-toxic white powder, soluble in benzene, acetone and chloroform, insoluble in water and alcohol, with a decomposition temperature greater than 285°C. It is the main product of deep processing of tetrabromobisphenol and has good flame retardant effect. As an additive flame retardant, octabromoether is a high-efficiency flame retardant containing both aromatic bromine and aliphatic bromine, with excellent thermal stability and light stability. It is mainly used in polypropylene, polypropylene, polypropylene resin, polyvinyl chloride resin and resin. Octabromoether is also called tetrabromobisphenol A (2,3-dibromopropyl) ether, referred to as BDDP, with a molecular weight of 943.65, gray-white powder, relative density of 2.17, melting point of 107~120℃, theoretical bromine content of 67.7%, soluble in dichloroethane, toluene, acetone, slightly soluble in water and methanol, and the temperature of 5% mass loss is 325℃.

[0003] At present, methyl octabromoether is prepared by a corresponding reactor. The octabromoether is first introduced into the reactor, and then a corresponding solvent is added, and the octabromoether is stirred by a stirring rod to improve the preparation efficiency of the octabromoether. However, when the stirring rod is stirring, the liquid level of the material fluctuates in the rise and fall amplitude. When the liquid level rises, the material in the mixed liquid partially adheres to the inner wall of the reactor, and the material mixed with the liquid has strong adhesion and cannot slide back into the mixed liquid, thereby causing an imbalance in the material ratio in the mixed liquid, affecting the preparation of the octabromoether, and causing the prepared octabromoether to fail to meet the preset standard, thereby increasing the preparation cost. Therefore, a reactor for preparing methyl octabromoether is provided. Utility Model Content

[0004] The utility model aims to provide a reactor for preparing methyl octabromoether, so as to solve the problem in the background technology that the material adheres to the top of the inner wall of the reactor, resulting in an imbalance in the proportion of the material in the mixed liquid, thereby affecting the preparation process of the material.

[0005] To achieve the above object, the utility model provides the following technical solution: a reactor for preparing methyl octabromoether, comprising a reaction tank body; a feed pipe, wherein the feed pipe is welded to the top of the reaction tank body;

[0006] A base, wherein the base is fixed to the bottom end of the reaction tank body by bolts; a scraping mechanism, wherein the scraping mechanism is arranged at the top end of the reaction tank body and the scraping mechanism extends to the inside of the reaction tank body, wherein the scraping mechanism comprises a moving rod sleeved on the top end of the reaction tank body, wherein the bottom end of the moving rod extends to the inside of the reaction tank body, wherein a scraping ring is fixed to the bottom end of the moving rod by bolts, wherein the scraping ring is fitted with the inner wall of the reaction tank body, wherein the scraping mechanism also comprises a stirring rod connected to the inside of the reaction tank body by a bearing, wherein a sealing member is arranged at the connection between the reaction tank body and the stirring rod, and the outer wall of the stirring rod is fixed by bolts. There are multiple evenly distributed stirring blades, the top of the stirring rod is sleeved with a connecting rod, the top of the connecting rod is connected to a driving motor through a coupling, the outer wall of the driving motor is fixed with a motor seat by bolts, the top of the motor seat is fixed with an electric telescopic rod by bolts, one end of the electric telescopic rod is fixed with a fixing frame by bolts, the fixing frame is fixedly connected to the top of the reaction tank body by bolts, the outer wall of the connecting rod is sleeved with a rotating column, the rotating column is located above the stirring rod, and the outer wall of the rotating column is connected to a connecting seat by a bearing, and the bottom end of the connecting seat is fixedly connected to the top of the reaction tank body by bolts.

[0007] By adopting the above technical solution, the scraping mechanism is used to scrape the material adhered to the upper inner wall of the reaction tank body, and mix the adhered material into the stirring liquid, the scraping ring is used to scrape downward the material adhered to the inner wall of the reaction tank body, the rotation of the stirring rod drives the stirring blade to rotate, the stirring blade rotates and stirs the material in the reaction tank body, the output end of the electric telescopic rod moves downward and drives the connecting rod to move downward through mechanical transmission, the output end of the drive motor rotates and drives the connecting rod to rotate through mechanical transmission, the connecting seat is used to support the rotating column, and the connecting seat is used to ensure the stability of the rotating column during rotation.

[0008] Preferably, a protrusion is welded on the outer wall of the connecting rod, and a sliding groove is provided on the inner wall of the stirring rod, and the sliding groove matches the moving trajectory of the protrusion. A blocking block is sleeved on the inner wall of the connecting rod, and one side of the blocking block is in an arc shape. The blocking block is located above the protrusion, and a blocking groove is provided on the inner wall of the rotating column, and the blocking groove matches one side of the blocking block. A spring is fixedly connected to one side of the blocking block, and the other side of the spring is fixedly connected to the inner wall of the connecting rod.

[0009] By adopting the above technical solution, the setting of the block and the slot makes it easy for the connecting rod to rotate and drive the rotating column to rotate, and the setting of the protrusion and the slide groove makes it easy for the protrusion to move vertically inside the stirring rod and still drive the stirring rod to rotate.

[0010] Preferably, a first spur gear is welded to the outer wall of the rotating column, a second spur gear is meshed on one side of the first spur gear, a rotating rod is welded to the top of the second spur gear, a cross bar is sleeved on the outer wall of the rotating rod, the bottom end of the cross bar is fixedly connected to the top of the moving rod by bolts, the top of the rotating rod is connected to a fixed seat by a bearing, the fixed seat is "L" shaped, the fixed seat is fixedly connected to the top of the reaction tank body by bolts, a connecting column is welded to the bottom end of the second spur gear, and the connecting column is rotatably connected to the top of the reaction tank body by a bearing.

[0011] By adopting the above technical solution, the rotation of the rotating column can drive the rotating rod to rotate through mechanical transmission, and then the rotation of the rotating rod can drive the cross bar and the moving rod to move.

[0012] Preferably, the outer wall of the rotating rod is provided with two thread grooves in opposite directions, and the inner wall of the cross bar is provided with a crescent pin which is sleeved with the thread grooves.

[0013] By adopting the above technical solution, through the arrangement of the threaded groove and the crescent pin, it is convenient for the rotating rod to rotate and drive the cross bar to move back and forth in the vertical direction.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By setting up a scraping mechanism, the moving rod and the scraper ring move downward, so that the material adhering to the top of the inner wall of the reaction tank body can be scraped into the mixed liquid below, and when the scraper ring scrapes to a position flush with the liquid surface, the rotation of the stirring blade drives the mixed liquid to rotate as a whole. The rotation of the stirring blade makes the mixed liquid surface have an impact force, and the impact force causes the material at the bottom of the scraper ring to detach and fall into the mixed liquid as a whole, thereby making the material ratio in the mixed liquid normal, facilitating the normal reaction process of the material, and also making the product after the material reaction reach the preset standard, thereby reducing the cost of the material reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the reaction tank body of the utility model;

[0018] Figure 3 For the utility model Figure 2 A is an enlarged structural diagram;

[0019] Figure 4 It is a schematic diagram of the internal structure of the stirring rod, the connecting rod and the rotating column of the utility model;

[0020] Figure 5 For the utility model Figure 4The enlarged structural diagram at B in FIG.

[0021] In the figure: 1. reaction tank body; 2. feed pipe; 3. base; 4. scraping mechanism; 401. stirring rod; 4011. stirring blade; 4012. slide; 402. connecting rod; 4021. bump; 4022. block; 4023. spring; 403. drive motor; 4031. motor seat; 404. electric telescopic rod; 405. rotating column; 4051. connecting seat; 406. first spur gear; 407. second spur gear; 4071. connecting column; 408. rotating rod; 4081. fixed seat; 409. cross bar; 410. moving rod; 4101. scraping ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The following is combined with Figure 1-Figure 5 The utility model is described in further detail.

[0024] See also Figure 1-Figure 5 The utility model provides a reactor for preparing methyl octabromoether. The reactor for preparing methyl octabromoether comprises a reactor body 1, which is used for the reaction of materials; a feed pipe 2, which is welded to the top of the reactor body 1 and is used to introduce materials into the reactor body 1; a base 3, which is fixed to the bottom of the reactor body 1 by bolts and is used to support the reactor body 1; a scraping mechanism 4, which is arranged at the top of the reactor body 1 and the scraping mechanism 4 extends to the interior of the reaction tank body 1, the scraping mechanism 4 is used to scrape the material adhered to the upper inner wall of the reaction tank body 1, and mix the adhered material in the stirring liquid, the scraping mechanism 4 includes a moving rod 410 sleeved on the top of the reaction tank body 1, the bottom end of the moving rod 410 extends to the interior of the reaction tank body 1, the bottom end of the moving rod 410 is fixed with a scraping ring 4101 by bolts, the scraping ring 4101 is in contact with the inner wall of the reaction tank body 1, and the scraping ring 4101 is used to scrape downward the material adhered to the inner wall of the reaction tank body 1.

[0025] It can be further explained that by moving the moving rod 410 and the scraper ring 4101 downward, the material adhering to the top of the inner wall of the reaction tank body 1 can be scraped into the mixed liquid below, and when the scraper ring 4101 scrapes to a position flush with the liquid surface, the rotation of the stirring blade 4011 drives the mixed liquid to rotate as a whole. The rotation of the stirring blade 4011 causes the surface of the mixed liquid to have an impact force, and the impact force causes the material at the bottom of the scraper ring 4101 to detach and fall into the mixed liquid as a whole, thereby making the material ratio in the mixed liquid normal.

[0026] See also Figure 2-Figure 5 The scraping mechanism 4 also includes a stirring rod 401 connected to the inside of the reaction tank body 1 through a bearing, a sealing member is provided at the connection between the reaction tank body 1 and the stirring rod 401, and a plurality of uniformly distributed stirring blades 4011 are fixed to the outer wall of the stirring rod 401 by bolts, and the stirring rod 401 rotates to drive the stirring blades 4011 to rotate, and the stirring blades 4011 rotate and stir the material in the reaction tank body 1; a connecting rod 402 is sleeved on the top of the stirring rod 401, and a driving motor 403 is connected to the top of the connecting rod 402 through a coupling, and a motor seat 4031 is fixed to the outer wall of the driving motor 403 by bolts, and an electric telescopic rod 404 is fixed to the top of the motor seat 4031 by bolts, and one end of the electric telescopic rod 404 is fixed to a fixing frame by bolts, and the fixing frame is fixedly connected to the top of the reaction tank body 1 by bolts, and the output end of the electric telescopic rod 404 moves downward and drives the connecting rod 402 to move downward through mechanical transmission, and the output end of the driving motor 403 rotates and drives the connecting rod 402 to rotate through mechanical transmission.

[0027] It can be further explained that the output end of the driving motor 403 rotates to drive the connecting rod 402 to rotate, the connecting rod 402 rotates to drive the protrusion 4021 to rotate, the protrusion 4021 rotates and squeezes the inner wall of the slide 4012, thereby driving the stirring rod 401 to rotate, the stirring rod 401 rotates to drive the stirring blade 4011 to rotate, the stirring blade 4011 rotates and stirs the material in the reaction tank body 1, thereby improving the reaction efficiency of the material.

[0028] See also Figure 2-Figure 5The outer wall of the connecting rod 402 is sleeved with a rotating column 405, and the rotating column 405 is located above the stirring rod 401, and the outer wall of the rotating column 405 is connected to a connecting seat 4051 through a bearing, and the bottom end of the connecting seat 4051 is fixedly connected to the top of the reaction tank body 1 through a bolt, and the connecting seat 4051 is used to support the rotating column 405, and the connecting seat 4051 is used to ensure the stability of the rotating column 405 when rotating; the outer wall of the connecting rod 402 is welded with a protrusion 4021, and the inner wall of the stirring rod 401 is provided with a slide groove 4012, and the slide groove 4012 matches the moving trajectory of the protrusion 4021 The inner wall of the connecting rod 402 is sleeved with a block 4022, one side of the block 4022 is in an arc shape, the block 4022 is located above the protrusion 4021, and the inner wall of the rotating column 405 is provided with a slot, the slot matches one side of the block 4022, one side of the block 4022 is fixedly connected with a spring 4023, the other side of the spring 4023 is fixedly connected to the inner wall of the connecting rod 402, the arrangement of the block 4022 and the slot facilitates the rotation of the connecting rod 402 to drive the rotating column 405 to rotate, the arrangement of the protrusion 4021 and the slide groove 4012 facilitates the protrusion 4021 to rotate on the stirring rod 4 01 moves vertically inside, it can still drive the stirring rod 401 to rotate; the outer wall of the rotating column 405 is welded with a first spur gear 406, one side of the first spur gear 406 is meshed with a second spur gear 407, the top of the second spur gear 407 is welded with a rotating rod 408, the outer wall of the rotating rod 408 is sleeved with a cross bar 409, the bottom end of the cross bar 409 is fixedly connected to the top of the moving rod 410 by bolts, the top of the rotating rod 408 is connected to a fixed seat 4081 through a bearing, the fixed seat 4081 is "L" shaped, and the fixed seat 4081 is fixedly connected to the top of the reaction tank body 1 by bolts. Then, a connecting column 4071 is welded to the bottom end of the second spur gear 407, and the connecting column 4071 is rotatably connected to the top of the reaction tank body 1 through a bearing. The rotation of the rotating column 405 can drive the rotating rod 408 to rotate through mechanical transmission, and then the rotation of the rotating rod 408 can drive the cross bar 409 and the moving rod 410 to move; the outer wall of the rotating rod 408 is provided with two thread grooves in opposite directions, and the inner wall of the cross bar 409 is provided with a crescent pin that is socketed with the thread groove. Through the arrangement of the thread groove and the crescent pin, it is convenient for the rotating rod 408 to rotate and drive the cross bar 409 to reciprocate in the vertical direction.

[0029] It can be further explained that the output end of the electric telescopic rod 404 moves upward and drives the driving motor 403 to move upward, the driving motor 403 moves to drive the connecting rod 402 to move upward, the connecting rod 402 moves to drive the block 4022 to move, and when the block 4022 and the slot on the inner wall of the rotating column 405 are at the same horizontal position, the spring 4023 returns to its original state and drives the block 4022 to reset and move, and the block 4022 resets and moves and engages with the slot, at this time, the output end of the driving motor 403 rotates and can drive the rotating column 405 to rotate through mechanical transmission, and the rotating column 405 rotates with The first spur gear 406 is driven to rotate, and the rotation of the first spur gear 406 drives the second spur gear 407 to rotate, and the second spur gear 407 drives the rotating rod 408 to rotate, and the rotation of the rotating rod 408 drives the cross bar 409 to move downward, and the movement of the cross bar 409 drives the moving rod 410 and the scraper ring 4101 to move downward, and the scraper ring 4101 scrapes the material adhered to the upper inner wall of the reaction tank body 1 and moves it downward, and the stirring blade 4011 continues to rotate and drives the liquid surface at the top of the material to impact the material scraped by the bottom end of the scraper ring 4101, so that the material is separated from the bottom end of the scraper ring 4101 under the impact of the liquid surface.

[0030] Working principle: when in use, firstly, the material to be reacted is introduced into the reaction tank body 1 through the feed pipe 2, and then the staff controls the driving motor 403 to work, and the output end of the driving motor 403 rotates to drive the connecting rod 402 to rotate, and the connecting rod 402 rotates to drive the protrusion 4021 to rotate, and the protrusion 4021 rotates and squeezes the inner wall of the slide 4012, thereby driving the stirring rod 401 to rotate, and the stirring rod 401 rotates to drive the stirring blade 4011 to rotate, and the stirring blade 4011 rotates and stirs the material in the reaction tank body 1, thereby improving the reaction efficiency of the material;

[0031] Secondly, after the material has been stirred for a certain period of time, the staff controls the electric telescopic rod 404 to work, the output end of the electric telescopic rod 404 moves upward and drives the driving motor 403 to move upward, the driving motor 403 moves to drive the connecting rod 402 to move upward, the connecting rod 402 moves to drive the clamping block 4022 to move, when the clamping block 4022 is at the same horizontal position as the clamping groove on the inner wall of the rotating column 405, the spring 4023 returns to its original state and drives the clamping block 4022 to reset and move, the clamping block 4022 resets and moves and engages with the clamping groove, at this time, the output end of the driving motor 403 rotates and can drive the rotating column 405 to rotate through mechanical transmission, the rotating column 405 rotates to drive the first spur gear 406 to rotate, and the first spur gear 406 rotates to drive The second spur gear 407 is driven to rotate, and the second spur gear 407 is turned to drive the rotating rod 408 to rotate, and the rotating rod 408 rotates to drive the cross bar 409 to move downward, and the movement of the cross bar 409 drives the moving rod 410 and the scraper ring 4101 to move downward, and the scraper ring 4101 scrapes the material adhering to the upper inner wall of the reaction tank body 1 and moves downward, and the stirring blade 4011 continues to rotate and drives the liquid surface at the top of the material to impact the material scraped by the bottom end of the scraper ring 4101, so that the material is separated from the bottom end of the scraper ring 4101 under the impact of the liquid surface, and then returns to the whole material, when the cross bar 409 moves downward to the bottom end of the outer wall of the rotating rod 408, the cross bar 409 is reset and moved under the action of the internal crescent pin and the threaded groove on the outer wall of the rotating rod 408;

[0032] Finally, by moving the moving rod 410 and the scraper ring 4101 downward, the material adhering to the top of the inner wall of the reaction tank body 1 can be scraped into the mixed liquid below, and when the scraper ring 4101 scrapes to a position flush with the liquid surface, the rotation of the stirring blade 4011 drives the mixed liquid to rotate as a whole. The rotation of the stirring blade 4011 causes the surface of the mixed liquid to have an impact force, and the impact force causes the material at the bottom of the scraper ring 4101 to detach and fall into the mixed liquid as a whole, thereby making the material ratio in the mixed liquid normal, facilitating the normal reaction process of the material, and also making the product after the material reaction reach the preset standard, thereby reducing the cost of the material reaction.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A reaction kettle for preparing methyl octabromoether, characterized in that: include: Reactor body (1); A feed pipe (2), wherein the feed pipe (2) is welded to the top of the reaction tank body (1); A base (3), wherein the base (3) is fixed to the bottom end of the reaction tank body (1) by means of bolts; A scraping mechanism (4), wherein the scraping mechanism (4) is arranged at the top of the reaction tank body (1), and the scraping mechanism (4) extends into the interior of the reaction tank body (1), the scraping mechanism (4) comprises a moving rod (410) sleeved on the top of the reaction tank body (1), the bottom end of the moving rod (410) extends into the interior of the reaction tank body (1), the bottom end of the moving rod (410) is fixed with a scraping ring (4101) by bolts, and the scraping ring (4101) is in contact with the inner wall of the reaction tank body (1), the scraping mechanism (4) further comprises a stirring rod (401) connected to the interior of the reaction tank body (1) by a bearing, a sealing member is arranged at the connection between the reaction tank body (1) and the stirring rod (401), a plurality of evenly distributed stirring blades (4011) are fixed to the outer wall of the stirring rod (401) by bolts, and the stirring blades (4011) are uniformly distributed. The top end of the stirring rod (401) is sleeved with a connecting rod (402), the top end of the connecting rod (402) is connected to a driving motor (403) via a coupling, the outer wall of the driving motor (403) is fixed with a motor seat (4031) via bolts, the top end of the motor seat (4031) is fixed with an electric telescopic rod (404) via bolts, one end of the electric telescopic rod (404) is fixed with a fixing frame via bolts, the fixing frame is fixedly connected to the top end of the reaction tank body (1) via bolts, the outer wall of the connecting rod (402) is sleeved with a rotating column (405), the rotating column (405) is located above the stirring rod (401), and the outer wall of the rotating column (405) is connected with a connecting seat (4051) via a bearing, and the bottom end of the connecting seat (4051) is fixedly connected to the top end of the reaction tank body (1) via bolts.

2. A reaction kettle for preparing methyl octabromoether according to claim 1, characterized in that: A protrusion (4021) is welded to the outer wall of the connecting rod (402), a slide groove (4012) is provided on the inner wall of the stirring rod (401), and the slide groove (4012) matches the moving trajectory of the protrusion (4021); a clamping block (4022) is sleeved on the inner wall of the connecting rod (402), one side of the clamping block (4022) is in an arc shape, and the clamping block (4022) is located above the protrusion (4021); and a clamping groove is provided on the inner wall of the rotating column (405), and the clamping groove matches one side of the clamping block (4022); one side of the clamping block (4022) is fixedly connected to a spring (4023), and the other side of the spring (4023) is fixedly connected to the inner wall of the connecting rod (402).

3. A reaction kettle for preparing methyl octabromoether according to claim 1, characterized in that: A first spur gear (406) is welded to the outer wall of the rotating column (405); a second spur gear (407) is meshed with one side of the first spur gear (406); a rotating rod (408) is welded to the top of the second spur gear (407); a cross bar (409) is sleeved on the outer wall of the rotating rod (408); the bottom end of the cross bar (409) is fixedly connected to the top of the moving rod (410) via bolts; the top of the rotating rod (408) is connected to a fixing seat (4081) via a bearing; the fixing seat (4081) is in an "L" shape; the fixing seat (4081) is fixedly connected to the top of the reaction tank body (1) via bolts; a connecting column (4071) is welded to the bottom end of the second spur gear (407); the connecting column (4071) is rotatably connected to the top of the reaction tank body (1) via a bearing.

4. A reaction kettle for preparing methyl octabromoether according to claim 3, characterized in that: The outer wall of the rotating rod (408) is provided with two thread grooves in opposite directions, and the inner wall of the cross rod (409) is provided with a crescent pin which is sleeved with the thread grooves.

Images