Alkylation reactor with high reaction efficiency

Abstract

The utility model provides an alkylation reactor with high reaction efficiency, which comprises a driving vertical shaft, a driving gear and a driving stirring rod, the driving vertical shaft is mounted at the lower end of a low-speed motor, the driving stirring rod is arranged on the lower side of the annular side surface of the driving vertical shaft, and the left and right sides and the front and rear sides of the annular side surface of the driving gear are meshed with driven gears; according to the reaction tank, the low-speed motor drives the driving stirring rods to rotate through the driving vertical shaft, so that the driving stirring rods rotate at a low speed to stir and mix reactants and catalysts on the lower side of the interior of the reaction tank, and meanwhile, the reactants and the catalysts can be stirred and mixed through the driven vertical shaft, so that the reactants and the catalysts can be stirred and mixed conveniently. The driving vertical shaft can also drive four groups of driven gears to rotate at a low speed through the driving gear, and the four groups of driven vertical shafts can drive a plurality of driven stirring rods to rotate to stir and mix reactants and catalysts on the upper side in the reaction tank, so that the reaction efficiency of the reactants and the catalysts in the reaction tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of alkylation reactors, in particular to an alkylation reactor with high reaction efficiency. Background Art

[0002] Alkylation refers to the reaction of introducing alkyl groups (-R) into carbon, nitrogen, oxygen and other atoms in organic molecules, referred to as alkylation. Commonly used alkylating agents include olefins, halogenated alkanes, alkyl sulfates and alcohols. Alkylation is one of the important reactions in organic synthesis. Through alkylation, new carbon, carbon-heterovalent bonds can be formed, thereby extending the molecular skeleton of organic compounds, changing the chemical structure of the alkylated compounds, giving them new properties, and producing many organic chemicals with specific uses. In the process of alkylation, corresponding alkylation reactors are required for reaction operations.

[0003] Publication No. "CN207137922U" provides a reactor with good alkylation reaction effect. Through the coordinated use of a reactor, a box, a motor, a first bevel gear, a second bevel gear, a rotating shaft, a rotating rod, a stirring blade and a stirring rod, the problem of insufficient reaction of the reactants during the reaction of the existing alkylation reactor due to insufficient mixing of the catalyst and the reactants is solved. Through the coordinated use of a condenser, a water outlet pipe and a water inlet pipe, the heat generated by the reactants during the reaction can be taken away, thereby avoiding the phenomenon of excessive temperature inside the reactor and improving the stability of the alkylation reaction.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] Firstly, the reactor only relies on stirring blades and stirring rods to mix the reactants in the reactor. However, this single structure cannot quickly and evenly mix the reactants in the reactor during actual use. It takes a long time of stirring to mix the reactants and the catalyst. The stirring uniformity and reaction efficiency need to be improved. Utility Model Content

[0006] The utility model aims to provide an alkylation reactor with high reaction efficiency to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An alkylation reactor with high reaction efficiency comprises support legs, a discharge valve, a fixed bottom plate, a reaction tank, a reactant feed valve, a sealed tank cover and a catalyst feed valve, wherein the upper end surface of the fixed bottom plate is symmetrically fixedly connected with support legs on both sides, the upper end of the support legs is fixedly connected with the reaction tank, the bottom of the reaction tank is equipped with a discharge valve, the upper end surface of the reaction tank is equipped with a sealed tank cover, the left side of the annular side surface of the sealed tank cover is connected with the catalyst feed valve, and the right side of the annular side surface of the sealed tank cover is connected with the reactant feed valve, a mixing component for fully stirring the alkylation reactant is arranged inside the reaction tank, so as to improve the reaction efficiency of the alkylation reactant, a cooling component is arranged on the outer surface of the reaction tank, and the cooling component is used to cool the heat generated by the reaction tank during the reaction, so as to avoid the phenomenon of excessive temperature inside the reaction tank.

[0009] Preferably, the mixing assembly includes a protective shell, a low-speed motor, a driving vertical shaft, a driving gear and an active stirring rod. The upper end surface of the sealed tank cover is equipped with a protective shell, a low-speed motor is installed at the middle position of the upper end surface of the protective shell, a driving vertical shaft is installed at the lower end of the low-speed motor, an active stirring rod is arranged on the lower side of the annular side surface of the driving vertical shaft, and a driving gear is arranged on the upper side of the annular side surface of the driving vertical shaft.

[0010] Preferably, the left and right sides and the front and rear sides of the annular side of the driving gear are meshed with driven gears, a driven vertical shaft is arranged inside the driven gear, and a driven stirring rod is arranged at the lower side of the annular side of the driven vertical shaft.

[0011] Preferably, the cooling assembly includes a cooling shell, a water inlet pipe, a first annular partition, a second annular partition and a water outlet pipe, the cooling shell is fixedly connected to the annular side of the reaction tank, the upper side of the left end surface of the cooling shell is connected to the water inlet pipe, the lower side of the right end surface of the cooling shell is connected to the water outlet pipe, the inner wall of the cooling shell is fixedly connected to the first annular partition, and the annular side of the reaction tank is fixedly connected to the second annular partition.

[0012] Preferably, the first annular baffles and the second annular baffles are fixedly connected in plurality, the plurality of the first annular baffles and the second annular baffles are arranged alternately, the inlet of the water inlet pipe is connected to the outlet of an external industrial water chiller, and the outlet of the water outlet pipe is connected to the inlet of an external industrial water chiller.

[0013] Preferably, a limit ring is provided on the upper side of the annular side surface of the driven vertical shaft, four groups of driven gears are meshed, and the four groups of driven gears have the same specifications, and four groups of driven vertical shafts are provided, and the four groups of driven vertical shafts have the same specifications.

[0014] Preferably, a rubber isolation pad is bonded to the bottom of the fixed base plate, the catalyst feed valve inlet is connected to the external catalyst storage tank outlet through a pipeline, and the reactant feed valve inlet is connected to the external reactant storage tank outlet through a pipeline.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model enables a low-speed motor to drive a plurality of active stirring rods to rotate through an active vertical shaft, so that the plurality of active stirring rods rotate at a low speed to stir and mix the reactants and catalysts on the lower side of the reaction tank. At the same time, the active vertical shaft also drives four sets of driven gears to rotate at a low speed through an active gear, and the four sets of driven vertical shafts drive a plurality of driven stirring rods to rotate to stir and mix the reactants and catalysts on the upper side of the reaction tank, thereby improving the reaction efficiency of the catalyst and the reactants in the reaction tank;

[0017] 2. The utility model injects cooling water into the cooling shell through the water inlet pipe. During this process, the staggered first annular baffles and the second annular baffles can increase the flow path of the cooling water inside the cooling shell, so that the cooling water inside the cooling shell can fully absorb most of the heat of the reaction tank, thereby avoiding excessive heat inside the reaction tank, thereby ensuring the reaction stability of the reaction tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a front cross-sectional view of the cooling component and the mixing component in the utility model;

[0020] Figure 3 It is a structural diagram of the mixing component in the utility model;

[0021] Figure 4 It is a top cross-sectional view of the mixing assembly in the utility model;

[0022] Figure 5 It is a structural diagram of the medium and low speed motor, active vertical shaft, active gear and active stirring rod of the utility model.

[0023] In the figure: 1. Support legs; 2. Discharge valve; 3. Fixed bottom plate; 31. Rubber isolation pad; 4. Cooling assembly; 41. Cooling shell; 42. Water inlet pipe; 43. First annular baffle; 44. Second annular baffle; 45. Water outlet pipe; 5. Reactor; 6. Reactant feed valve; 7. Sealing tank cover; 8. Catalyst feed valve; 9. Mixing assembly; 91. Protective shell; 92. Driven gear; 93. Driven vertical shaft; 931. Limiting ring; 94. Low-speed motor; 95. Active vertical shaft; 96. Active gear; 97. Active stirring rod; 98. Driven stirring rod. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] An alkylation reactor with high reaction efficiency comprises a support leg 1, a discharge valve 2, a fixed bottom plate 3, a reaction tank 5, a reactant feed valve 6, a sealed tank cover 7 and a catalyst feed valve 8. The upper end surface of the fixed bottom plate 3 is symmetrically fixedly connected with the support legs 1 on both sides, the support legs 1 can support the reaction tank 5, the upper end of the support legs 1 is fixedly connected with the reaction tank 5, the reaction tank 5 is convenient for alkylation reaction operation, the bottom of the reaction tank 5 is equipped with a discharge valve 2, the outlet of the discharge valve 2 is connected with the inlet of the external transfer tank through a pipeline, and the discharge valve 2 is convenient for the discharge of reactants after the alkylation reaction in the reaction tank 5 when it is opened, the upper end surface of the reaction tank 5 is equipped with a sealed tank cover 7, the sealed tank cover 7 can block the upper end of the reaction tank 5, and the front side of the annular side surface of the sealed tank is provided with an observation window, and the observation window is convenient for staff to observe the internal situation of the reaction tank 5 in real time.

[0028] A catalyst feed valve 8 is connected to the left side of the annular side of the sealed tank cover 7, and the inlet of the catalyst feed valve 8 is connected to the outlet of the external catalyst storage tank through a pipeline. When the catalyst feed valve 8 is opened, the required catalyst liquid will be added to the inside of the reaction tank 5. A reactant feed valve 6 is connected to the right side of the annular side of the sealed tank cover 7, and the inlet of the reactant feed valve 6 is connected to the outlet of the external reactant storage tank through a pipeline. When the reactant feed valve 6 is opened, the required reactant will be added to the inside of the reaction tank 5. A rubber isolation pad 31 is bonded to the bottom of the fixed base plate 3. The rubber isolation pad 31 has a good isolation effect on the fixed base plate 3, thereby avoiding resonance noise of the fixed base plate 3 when the low-speed motor 94 is working.

[0029] A mixing assembly 9 is provided inside the reaction tank 5 for fully stirring the alkylation reactants, so as to improve the reaction efficiency of the alkylation reactants. A cooling assembly 4 is provided on the outer surface of the reaction tank 5, and the cooling assembly 4 is used to cool the heat generated by the reaction tank 5 during the reaction, thereby avoiding the phenomenon of excessive temperature inside the reaction tank 5.

[0030] The mixing assembly 9 includes a protective shell 91, a low-speed motor 94, a driving vertical shaft 95, a driving gear 96 and an active stirring rod 97. The upper end surface of the sealed tank cover 7 is equipped with a protective shell 91. The protective shell 91 not only supports the low-speed motor 94, but also protects the driving gear 96 and the driven gear 92. A low-speed motor 94 is installed in the middle position of the upper end surface of the protective shell 91. The low-speed motor 94 is connected to the external control switch through a wire. The low-speed motor 94 will drive the active vertical shaft 95 to rotate at a low speed when working. The lower end of the low-speed motor 94 is equipped with an active vertical shaft 95, and the active vertical shaft 95 is connected to the driving gear 96 by welding. An active stirring rod 97 is arranged on the lower side of the annular side of the active vertical shaft 95. There are multiple active stirring rods 97, and the multiple active stirring rods 97 have the same specifications. The active stirring rod 97 is connected to the active vertical shaft 95 by welding. The active vertical shaft 95 will drive multiple active stirring rods 97 to rotate at a low speed to stir and mix the reactants and catalysts on the lower side of the reaction tank 5.

[0031] A driving gear 96 is arranged on the upper side of the annular side of the driving vertical shaft 95, and the driving gear 96 will drive the driven gear 92 to rotate. The left and right sides and the front and rear sides of the annular side of the driving gear 96 are meshed with driven gears 92. There are four groups of meshed driven gears 92, and the four groups of driven gears 92 have the same specifications. A driven vertical shaft 93 is arranged inside the driven gear 92, and the driven vertical shaft 93 is connected to the driven stirring rod 98, the driven gear 92 and the limit ring 931 by welding. There are four groups of driven vertical shafts 93, and the four groups of driven vertical shafts 93 have the same specifications. A plurality of driven stirring rods 98 are provided, and the specifications of the plurality of driven stirring rods 98 are the same. The four sets of driven gears 92 will drive the four sets of driven vertical shafts 93 to rotate at a low speed, so that the four sets of driven vertical shafts 93 can drive the plurality of driven stirring rods 98 to rotate to stir and mix the reactants and catalysts on the upper side of the reaction tank 5. A limiting ring 931 is provided on the upper side of the annular side surface of the driven vertical shaft 93. The limiting ring 931 prevents the driven vertical shaft 93 from being displaced up and down during rotation. A ball bearing is installed on the annular side surface of the limiting ring 931. The ball bearing makes the rotation resistance of the limiting ring 931 smaller.

[0032] Embodiment 2:

[0033] On the basis of Example 1, in this embodiment, cooling water is injected into the cooling shell 41 through the water inlet pipe 42. During this process, the staggered first annular baffles 43 and the second annular baffles 44 can increase the flow path of the cooling water inside the cooling shell 41, so that the cooling water inside the cooling shell 41 can fully absorb most of the heat of the reaction tank 5, thereby avoiding excessive heat inside the reaction tank 5, thereby ensuring the reaction stability of the reaction tank 5.

[0034] The cooling component 4 includes a cooling shell 41, an inlet pipe 42, a first annular baffle 43, a second annular baffle 44 and an outlet pipe 45. The cooling shell 41 is fixedly connected to the annular side of the reaction tank 5. The cooling shell 41 facilitates external cooling water to absorb heat and cool the reaction tank 5. The upper side of the left end surface of the cooling shell 41 is connected to the inlet pipe 42, and the inlet pipe 42 is connected to the outlet of the external industrial water chiller. The inlet pipe 42 will guide the cooling water in the external industrial water chiller to the inside of the cooling shell 41. The lower side of the right end surface of the cooling shell 41 is connected to the outlet pipe 45, and the outlet of the outlet pipe 45 is connected to the inlet of the external industrial water chiller. The outlet pipe 45 will guide the cooling water after absorbing heat in the cooling shell 41 to the inside of the external industrial water chiller for cooling and circulation.

[0035] A first annular baffle 43 is fixedly connected to the inner wall of the cooling shell 41, and a second annular baffle 44 is fixedly connected to the annular side of the reaction tank 5. Multiple first annular baffles 43 and second annular baffles 44 are fixedly connected, and the multiple first annular baffles 43 and second annular baffles 44 are staggered. The staggered first annular baffles 43 and second annular baffles 44 can increase the flow path of cooling water inside the cooling shell 41, so that the cooling water inside the cooling shell 41 can fully absorb most of the heat of the reaction tank 5.

[0036] Working principle: The staff first opens the catalyst feed valve 8 and the reactant feed valve 6 respectively to add the required amount of catalyst and reactant into the reaction tank 5, and then starts the low-speed motor 94, so that the low-speed motor 94 drives the active vertical shaft 95 to rotate at a low speed, and the active vertical shaft 95 will drive multiple active stirring rods 97 to rotate, so that the multiple active stirring rods 97 rotate at a low speed to stir and mix the reactants and catalysts on the lower side of the reaction tank 5. At the same time, the active vertical shaft 95 will also drive the active gear 96 to rotate, so that the active gear 96 drives the four groups of driven gears 92 to rotate at a low speed, and the four groups of driven vertical shafts 93 will drive multiple driven stirring rods 98 to rotate to stir and mix the reactants and catalysts on the upper side of the reaction tank 5, so as to improve the catalyst and reactant inside the reaction tank 5. When the reaction tank 5 needs to be cooled, the staff only needs to start the external industrial water chiller, and the external industrial water chiller can inject cooling water into the cooling shell 41 through the water inlet pipe 42, and the staggered first annular baffles 43 and the second annular baffles 44 can increase the flow path of the cooling water inside the cooling shell 41, so that the cooling water inside the cooling shell 41 can fully absorb most of the heat of the reaction tank 5, thereby avoiding excessive heat inside the reaction tank 5, and the cooling water after absorbing heat will flow into the external industrial water chiller again through the outlet pipe 45 for cooling and recycling; when the reaction of the reactants is completed, the staff first turns off the low-speed motor 94 and the external industrial water chiller respectively, and then opens the discharge valve 2 to discharge the reactants after the reaction.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An alkylation reactor with high reaction efficiency, comprising a support leg (1), a discharge valve (2), a fixed bottom plate (3), a reaction tank (5), a reactant feed valve (6), a sealed tank cover (7) and a catalyst feed valve (8), characterized in that: The upper end surface of the fixed bottom plate (3) is symmetrically fixedly connected to support legs (1) on both sides, the upper end of the support legs (1) is fixedly connected to a reaction tank (5), a discharge valve (2) is installed at the bottom of the reaction tank (5), and a sealed tank cover (7) is installed on the upper end surface of the reaction tank (5); The left side of the annular side of the sealed tank cover (7) is connected to a catalyst feed valve (8), and the right side of the annular side of the sealed tank cover (7) is connected to a reactant feed valve (6). A mixing component (9) for fully stirring the alkylation reactants is arranged inside the reaction tank (5), thereby improving the reaction efficiency of the alkylation reactants. A cooling component (4) is arranged on the outer surface of the reaction tank (5), and the cooling component (4) is used to cool the heat generated by the reaction tank (5) during the reaction, thereby avoiding the phenomenon of excessive temperature inside the reaction tank (5).

2. The alkylation reactor with high reaction efficiency according to claim 1, characterized in that: The mixing assembly (9) comprises a protective shell (91), a low-speed motor (94), a driving vertical shaft (95), a driving gear (96) and an active stirring rod (97); the protective shell (91) is mounted on the upper end surface of the sealed tank cover (7); the low-speed motor (94) is mounted at the middle position of the upper end surface of the protective shell (91); the driving vertical shaft (95) is mounted at the lower end of the low-speed motor (94); the active stirring rod (97) is arranged on the lower side of the annular side surface of the driving vertical shaft (95); and the driving gear (96) is arranged on the upper side of the annular side surface of the driving vertical shaft (95).

3. The alkylation reactor with high reaction efficiency according to claim 2, characterized in that: The left and right sides and the front and rear sides of the annular side surface of the driving gear (96) are meshed with driven gears (92), a driven vertical shaft (93) is arranged inside the driven gear (92), and a driven stirring rod (98) is arranged on the lower side of the annular side surface of the driven vertical shaft (93).

4. The alkylation reactor with high reaction efficiency according to claim 1, characterized in that: The cooling component (4) comprises a cooling shell (41), a water inlet pipe (42), a first annular partition plate (43), a second annular partition plate (44) and a water outlet pipe (45); the cooling shell (41) is fixedly connected to the annular side surface of the reaction tank (5); the upper side of the left end surface of the cooling shell (41) is connected to the water inlet pipe (42); the lower side of the right end surface of the cooling shell (41) is connected to the water outlet pipe (45); the inner wall of the cooling shell (41) is fixedly connected to the first annular partition plate (43); and the annular side surface of the reaction tank (5) is fixedly connected to the second annular partition plate (44).

5. The alkylation reactor with high reaction efficiency according to claim 4, characterized in that: The first annular baffle (43) and the second annular baffle (44) are both fixedly connected in plurality, and the plurality of the first annular baffles (43) and the second annular baffles (44) are arranged in a staggered manner. The inlet of the water inlet pipe (42) is connected to the outlet of an external industrial water chiller, and the outlet of the water outlet pipe (45) is connected to the inlet of an external industrial water chiller.

6. The alkylation reactor with high reaction efficiency according to claim 3, characterized in that: A limiting ring (931) is arranged on the upper side of the annular side surface of the driven vertical shaft (93); the driven gears (92) are meshed with four groups, and the four groups of driven gears (92) have the same specifications; the driven vertical shafts (93) are arranged with four groups, and the four groups of driven vertical shafts (93) have the same specifications.

7. The alkylation reactor with high reaction efficiency according to claim 1, characterized in that: A rubber shock-isolating pad (31) is bonded to the bottom of the fixed base plate (3); the inlet of the catalyst feed valve (8) is connected to the outlet of an external catalyst storage tank through a pipeline; and the inlet of the reactant feed valve (6) is connected to the outlet of an external reactant storage tank through a pipeline.

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