Chemical combination reaction dehydration device

Abstract

The invention belongs to the technical field of cyclization reaction equipment, and discloses a chemical combination reaction dehydration device which is technically characterized by comprising a dehydration tank, a floating platform is arranged in an inner cavity of the dehydration tank, the density of the floating platform is smaller than that of water, the density of the floating platform is larger than that of methylbenzene, and a backflow pipe is fixedly installed on the surface of the floating platform. A bearing ring located on the outer side of the floating platform is arranged in an inner cavity of the dewatering tank, a control mechanism matched with the bearing ring is arranged on the side wall of the dewatering tank and comprises a limiting column and a lifting assembly, the limiting column is used for relieving control over the bearing ring by the lifting assembly, and a cleaning mechanism is arranged on the surface of the bearing ring. The cleaning mechanism comprises a sweeping assembly and a cleaning assembly, and the problems that in an existing recycling mode, the position height of a guide pipe extraction opening cannot be accurately adjusted, the guide pipe extraction opening is likely to move to the position below a methylbenzene layer to extract water, and methylbenzene is likely to be attached to the inner wall of a cylinder and cannot be effectively cleaned are solved.

Description

Technical Field

[0001] The invention relates to the technical field of cyclization reaction equipment, in particular to a chemical combination reaction dehydration device. Background Art

[0002] For example, in the cyclization reaction, guanidine sulfate and n-butyl ester are cyclized to form ethoxyphenol, using toluene as solvent and potassium carbonate as acid binder. Water and alcohol are byproducts of the reaction. 1 mol of guanidine sulfate and 2 mol of n-butyl ester generate 2 mol of alcohol and 3 mol of water, and 1 mol of carbon dioxide gas is generated. Timely separation of the alcohol and water mixture in the gas-liquid separator is beneficial to the forward reaction.

[0003] During condensation and gas-liquid separation, part of the toluene will be distilled synchronously with the water vapor and transferred to the gas-liquid separation cylinder through the cooling effect of the condenser. The density of toluene is lower than that of water. Toluene and water will automatically form stratification in the gas-liquid separation cylinder. Usually, the water is directly discharged from the bottom of the separation cylinder, and the toluene is extracted into the reactor through the conduit for reuse.

[0004] When the gas-liquid separation cylinder is in use, the extraction catheter is mainly controlled by mechanical components to move in the separation cylinder to recover toluene. The existing recovery method cannot accurately adjust the position height of the catheter extraction port, and it is easy to move below the toluene layer to extract water. In addition, when the gas-liquid separation cylinder is in use, toluene is easy to adhere to the inner wall of the cylinder and cannot be effectively cleaned. Summary of the invention

[0005] The object of the present invention is to provide a chemical reaction dehydration device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A chemical reaction dehydration device comprises a dehydration tank, wherein support legs are fixedly installed around the bottom wall of the dehydration tank, a condenser is arranged at the top of the dehydration tank, the condenser is connected with an external reactor, a drain pipe is arranged at the bottom of the dehydration tank, a control valve is arranged on the surface of the drain pipe, a floating platform is arranged in the inner cavity of the dehydration tank, the density of the floating platform is less than the density of water, and the density of the floating platform is greater than the density of toluene, a reflux pipe is fixedly installed on the surface of the floating platform, one end of the reflux pipe extends to the surface of the floating platform, and the other end of the reflux pipe extends to the outside of the dehydration tank and is connected with the reactor, a pump is arranged on the surface of the reflux pipe, a bearing ring located on the outside of the floating platform is arranged in the inner cavity of the dehydration tank, and the dehydration tank is provided with a plurality of valves. A control mechanism that cooperates with the carrying ring is provided on the side wall of the water tank, and the control mechanism includes a limit column and a lifting assembly. Multiple groups of limit columns are fixedly installed on the inner bottom wall of the dehydration tank, and the lifting assembly is located on the side wall of the dehydration tank. The lifting assembly is used to control the carrying ring to move in the vertical direction in the inner cavity of the dehydration tank. The limit column is used to release the control of the lifting assembly on the carrying ring. A cleaning mechanism is provided on the surface of the carrying ring, and the cleaning mechanism includes a cleaning assembly and a washing assembly. The cleaning assembly and the washing assembly are respectively connected to the carrying ring. When the carrying ring moves in the vertical direction in the inner cavity of the dehydration tank, the cleaning assembly cleans the toluene attached to the inner wall of the dehydration tank by cooperating with the cleaning assembly.

[0008] As a further solution of the present invention: the lifting assembly includes a fixing ring fixedly installed on the annular side wall of the dehydration tank, the fixing ring is provided with two groups and respectively located at the upper and lower ends of the dehydration tank, multiple groups of threaded rods are rotatably installed between the two groups of fixing rings, the multiple groups of threaded rods are commonly threadedly connected with a control ring, the control ring is sleeved on the outside of the dehydration tank, the bearing ring is made of magnetic material, and a magnetic ring that cooperates with the bearing ring is fixedly installed on the inner side wall of the control ring, the top ends of the multiple groups of threaded rods extend to the top of the fixing ring and are respectively fixedly installed with synchronous gear discs, the multiple groups of synchronous gear discs are commonly connected with a synchronous belt, and the top end of one group of threaded rods is connected with a motor.

[0009] As a further solution of the present invention: the cleaning assembly includes multiple groups of support rods fixedly installed on the side wall of the floating platform, and the ends of the multiple groups of support rods away from the floating platform are respectively connected to the supporting rings, and the annular side wall of the supporting ring is provided with multiple groups of evenly distributed brushes.

[0010] As a further solution of the present invention: the cleaning assembly includes an annular water storage cavity opened downwardly from the surface of the carrying ring, and a guide hole connected to the water storage cavity is opened inwardly on the side wall of the carrying ring.

[0011] As a further solution of the present invention: the bottom wall of the floating platform is provided with a closing component that cooperates with the drainage pipe, and the closing component includes multiple groups of vertical rods fixedly installed on the bottom wall of the floating platform, and sealing plates are fixedly installed on the bottom ends of the multiple groups of vertical rods.

[0012] As a further solution of the present invention: a guide rod is fixedly installed between the inner top wall and the inner bottom wall of the dehydration tank, and the guide rod is slidably connected to the floating platform along the vertical direction.

[0013] As a further solution of the present invention: the bottom wall of the dehydration tank is configured as a funnel-shaped structure.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the floating platform and the reflux pipe to cooperate with each other, the position height of the extraction end of the reflux pipe can be automatically adjusted, so that the reflux pipe can fully recycle toluene. By setting a cleaning mechanism composed of a cleaning component and a cleaning component to cooperate with a control mechanism composed of a limit column and a lifting component, the position height of the support ring can be conveniently adjusted, and then the toluene attached to the inner wall of the dehydration tank can be cleaned in all directions. It solves the problem that the existing recovery method cannot accurately adjust the position height of the catheter extraction port, is easy to move below the toluene layer to extract water, and toluene is easy to adhere to the inner wall of the cylinder and cannot be effectively cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a chemical reaction dehydration device provided in an embodiment of the present invention Figure 1 .

[0016] Figure 2 A schematic diagram of the three-dimensional structure of a chemical reaction dehydration device provided in an embodiment of the present invention Figure 2 .

[0017] Figure 3 It is a schematic diagram of the main structure of a chemical reaction dehydration device provided in an embodiment of the present invention.

[0018] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of A.

[0019] Figure 5 It is a schematic diagram of a supporting ring and its connection structure in a chemical reaction dehydration device provided in an embodiment of the present invention.

[0020] Among them: 1-dehydration tank, 11-condenser, 12-drain pipe, 121-control valve, 2-support leg, 3-floating platform, 4-reflux pipe, 5-bearing ring, 6-cleaning mechanism, 61-cleaning component, 611-support rod, 612-brush, 62-cleaning component, 621-water storage chamber, 622-flow guide hole, 7-control mechanism, 71-limiting column, 72-lifting component, 721-fixing ring, 722-threaded rod, 723-control ring, 724-magnetic ring, 725-synchronous gear disc, 726-synchronous belt, 727-motor, 8-closing component, 81-vertical rod, 82-sealing plate, 9-guide rod. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0022] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0023] like Figure 1 , Figure 2 , Figure 3 As shown, it is a structural diagram of a chemical reaction dehydration device provided by an embodiment of the present invention, comprising a dehydration tank 1, wherein support legs 2 are fixedly installed around the bottom wall of the dehydration tank 1, a condenser 11 is arranged at the top of the dehydration tank 1, and the condenser 11 is connected to the external reactor, a drain pipe 12 is arranged at the bottom of the dehydration tank 1, and a control valve 121 is arranged on the surface of the drain pipe 12, a floating platform 3 is arranged in the inner cavity of the dehydration tank 1, the density of the floating platform 3 is less than the density of water, and the density of the floating platform 3 is greater than the density of toluene, a reflux pipe 4 is fixedly installed on the surface of the floating platform 3, one end of the reflux pipe 4 extends to the surface of the floating platform 3, and the other end of the reflux pipe 4 extends to the outside of the dehydration tank 1 and is connected to the reactor, a pump is arranged on the surface of the reflux pipe 4, and a bearing ring 5 located on the outside of the floating platform 3 is arranged in the inner cavity of the dehydration tank 1 The side wall of the dehydration tank 1 is provided with a control mechanism 7 that cooperates with the carrying ring 5, and the control mechanism 7 includes a limiting column 71 and a lifting component 72. Multiple groups of limiting columns 71 are fixedly installed on the inner bottom wall of the dehydration tank 1, and the lifting component 72 is located on the side wall of the dehydration tank 1. The lifting component 72 is used to control the carrying ring 5 to move in the vertical direction in the inner cavity of the dehydration tank. The limiting column 71 is used to release the control of the lifting component 72 on the carrying ring 5. A cleaning mechanism 6 is provided on the surface of the carrying ring 5. The cleaning mechanism 6 includes a cleaning component 61 and a cleaning component 62. The cleaning component 61 and the cleaning component 62 are respectively connected to the carrying ring 5. When the carrying ring 5 moves in the inner cavity of the dehydration tank 1 along the vertical direction, the cleaning component 61 cleans the toluene attached to the inner wall of the dehydration tank 1 by cooperating with the cleaning component 62.

[0024] Initially, the lifting assembly 72 releases the control of the carrying ring 5, and the condensed aqueous solution and toluene are directed into the dehydration tank 1 through the condenser 11. The toluene and the aqueous solution are stratified, and the toluene is above the aqueous solution. Since the density of the floating platform 3 is less than the density of water, and the density of the floating platform 3 is greater than the density of toluene, the floating platform 3 is at the stratification between the toluene and the aqueous solution, and the reflux pipe 4 is at the lowest point of the toluene solution. The pump and the reflux pipe 4 cooperate with each other to conveniently extract the toluene in the dehydration tank 1 into the reactor. The drainage pipe 12 is opened by the control valve 121 to automatically discharge the aqueous solution in the dehydration tank 1. When it is necessary to clean the inner cavity of the dehydration tank 1, an appropriate amount of water is injected into the inner cavity of the dehydration tank 1, and the lifting component 72 controls the supporting ring 5 and the floating platform 3 to move back and forth in the vertical direction in the inner cavity of the dehydration tank 1. When the supporting ring 5 moves in the vertical direction, the cleaning component 62 can evenly sprinkle the water at the bottom of the dehydration tank 1 onto the inner wall of the dehydration tank 1, and the cleaning component 61 can perform all-round cleaning on the inner wall of the dehydration tank 1 after sprinkling water, effectively preventing toluene from adhering to the inner wall of the dehydration tank 1.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, as a preferred embodiment of the present invention, the lifting assembly 72 includes a fixing ring 721 fixedly installed on the annular side wall of the dehydration tank 1, and the fixing ring 721 is provided with two groups and is respectively located at the upper and lower ends of the dehydration tank 1, and multiple groups of threaded rods 722 are rotatably installed between the two groups of fixing rings 721, and the multiple groups of threaded rods 722 are commonly threadedly connected with a control ring 723, and the control ring 723 is sleeved on the outer side of the dehydration tank 1, and the carrying ring 5 is made of magnetic material. A magnetic ring 724 that cooperates with the carrying ring 5 is fixedly installed on the inner wall of the control ring 723, and the top ends of the multiple groups of threaded rods 722 extend to the top of the fixing ring 721 and are respectively fixedly installed with synchronous toothed discs 725, and the multiple groups of synchronous toothed discs 725 are commonly connected with a synchronous belt 726, and the top end of a group of threaded rods 722 is connected with a motor 727.

[0026] When in use, the motor 727 drives a group of threaded rods 722 to rotate and then drives the synchronous toothed disc 725 to rotate. Multiple groups of synchronous toothed discs 725 cooperate with the synchronous belt 726 to drive multiple groups of threaded rods 722 to rotate synchronously. Multiple groups of threaded rods 722 drive the control ring 723 and the magnetic ring 724 to move in the vertical direction outside the dehydration tank 1. The magnetic ring 724 drives the carrying ring 5 to move synchronously in the vertical direction in the inner cavity of the dehydration tank 1 through the magnetic attraction. When it is necessary to release the control of the carrying ring 5, the threaded rod 722 drives the control ring 723 and the magnetic ring 724 to move vertically downward to the lowest point. At this time, the limit column 71 limits the position of the carrying ring 5. At this time, the carrying ring 5 is far away from the magnetic ring 724, and the magnetic attraction of the magnetic ring 724 cancels the control of the carrying ring 5.

[0027] like Figure 2 , Figure 4 , Figure 5 As shown, as a preferred embodiment of the present invention, the cleaning assembly 61 includes a plurality of groups of support rods 611 fixedly installed on the side wall of the floating platform 3, and the ends of the plurality of groups of support rods 611 away from the floating platform 3 are respectively connected to the supporting ring 5, and the annular side wall of the supporting ring 5 is provided with a plurality of groups of evenly distributed brushes 612.

[0028] When the supporting ring 5 moves in the vertical direction, it will drive the brush 612 to move in the vertical direction synchronously. The brush 612 can clean the inner wall of the dehydration tank 1 in all directions. After sprinkling water, the water will carry the toluene attached to the inner wall of the dehydration tank 1 to the bottom of the dehydration tank 1, and then be discharged through the drainage pipe 12.

[0029] like Figure 2 , Figure 4 , Figure 5 As shown, as a preferred embodiment of the present invention, the cleaning assembly 62 includes an annular water storage cavity 621 opened downwardly from the surface of the carrying ring 5, and a guide hole 622 connected to the water storage cavity 621 is opened inwardly on the side wall of the carrying ring 5.

[0030] When the carrying ring 5 moves to the bottom of the dehydration tank 1, the water at the bottom of the dehydration tank 1 automatically flows into the water storage chamber 621, and the carrying ring 5 moves vertically upward, and the water in the water storage chamber 621 flows out through the guide hole 622, and the water flowing out of the guide hole 622 automatically sprinkles onto the inner wall surface of the dehydration tank 1.

[0031] like Figure 2 , Figure 3 , Figure 5 As shown, as a preferred embodiment of the present invention, the bottom wall of the floating platform 3 is provided with a closing component 8 that cooperates with the drainage pipe 12, and the closing component 8 includes a plurality of vertical rods 81 fixedly installed on the bottom wall of the floating platform 3, and a sealing plate 82 is fixedly installed on the bottom ends of the plurality of vertical rods 81.

[0032] The opening and closing of the drain pipe 12 is adjusted by the control valve 121. When draining, the drain pipe 12 is in a through state. When the water in the inner cavity of the dehydration tank 1 is about to be drained and toluene is stored in the inner cavity of the dehydration tank 1, the control valve 121 needs to be adjusted in time to close the drain pipe 12. When the control valve 121 is not adjusted in time, the sealing component 8 cooperates with the floating platform 3 to automatically control the card playing pipe 12 to switch to a closed state. As the water level drops, the floating platform 3 moves downward, and the floating platform 3 cooperates with the vertical rod 81 to drive the sealing plate 82 to move downward synchronously. The sealing plate 81 fits with the inner bottom wall of the dehydration tank 1 to control the top opening of the drain pipe 12 to remain in a closed state.

[0033] like Figure 2 , Figure 3As shown, as a preferred embodiment of the present invention, a guide rod 9 is fixedly installed between the inner top wall and the inner bottom wall of the dehydration tank 1, and the guide rod 9 is slidably connected to the floating platform 3 along the vertical direction.

[0034] like Figure 2 , Figure 3 As shown, as a preferred embodiment of the present invention, the bottom wall of the dehydration tank 1 is configured as a funnel-shaped structure.

[0035] The working principle of the present invention is: the condensed aqueous solution and toluene are guided into the dehydration tank 1 through the condenser 11, and stratification occurs between the toluene and the aqueous solution. The toluene is located above the aqueous solution. Since the density of the floating platform 3 is less than the density of water, and the density of the floating platform 3 is greater than the density of toluene, the floating platform 3 is located at the stratification point between the toluene and the aqueous solution. The reflux pipe 4 is located at the lowest point of the toluene solution. The pump and the reflux pipe 4 cooperate with each other to conveniently extract the toluene in the dehydration tank 1 into the reactor. The drainage pipe 12 is opened by the control valve 121 to automatically discharge the aqueous solution in the dehydration tank 1. When the inner cavity of the dehydration tank 1 needs to be cleaned, an appropriate amount of water is injected into the inner cavity of the dehydration tank 1, and the motor 727 drives a group of threaded rods 722 to rotate and then drives the synchronous gear plate 725 to rotate. Multiple groups of synchronous gear plates 725 cooperate with the synchronous belt 726 to drive multiple groups of threaded rods 722 to rotate synchronously. Multiple groups of threaded rods 722 drive the control ring 723 and the magnetic ring 724 to move in the vertical direction on the outside of the dehydration tank 1. The magnetic ring 724 drives the carrying ring 5 to move synchronously in the vertical direction in the inner cavity of the dehydration tank 1 through magnetic attraction.

[0036] When the carrying ring 5 moves to the bottom of the dehydration tank 1, the water at the bottom of the dehydration tank 1 automatically flows into the water storage chamber 621, and the carrying ring 5 moves vertically upward, and the water in the water storage chamber 621 flows out through the guide hole 622, and the water flowing out of the guide hole 622 automatically sprinkles onto the inner wall surface of the dehydration tank 1. When the carrying ring 5 moves in the vertical direction, it will drive the brush 612 to move synchronously in the vertical direction. The brush 612 can clean the inner wall of the dehydration tank 1 in all directions. After sprinkling, the water will flow to the bottom of the dehydration tank 1 with the toluene attached to the inner wall of the dehydration tank 1, and then be discharged through the drainage pipe 12. When it is necessary to release the control of the carrying ring 5, the threaded rod 722 drives the control ring 723 and the magnetic ring 724 to move vertically downward to the lowest point. At this time, the limit column 71 limits the position of the carrying ring 5. At this time, the carrying ring 5 is far away from the magnetic ring 724, and the magnetic attraction of the magnetic ring 724 cancels the control of the carrying ring 5.

[0037] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A chemical reaction dehydration device, comprising a dehydration tank, wherein the bottom wall of the dehydration tank is respectively fixedly mounted with support legs, a condenser is arranged at the top of the dehydration tank, the condenser is connected to an external reactor, a drain pipe is arranged at the bottom of the dehydration tank, and a control valve is arranged on the surface of the drain pipe, characterized in that: The inner cavity of the dehydration tank is provided with a floating platform, the density of the floating platform is less than the density of water, and the density of the floating platform is greater than the density of toluene. A reflux pipe is fixedly installed on the surface of the floating platform, one end of the reflux pipe extends to the surface of the floating platform, and the other end of the reflux pipe extends to the outside of the dehydration tank and is connected to the reactor. A pump is arranged on the surface of the reflux pipe. The inner cavity of the dehydration tank is provided with a bearing ring located outside the floating platform, and the side wall of the dehydration tank is provided with a control mechanism that cooperates with the bearing ring. The control mechanism includes a limit column and a lifting assembly, and multiple groups of limit columns are fixed. It is installed on the bottom wall of the dehydration tank, and the lifting component is located on the side wall of the dehydration tank. The lifting component is used to control the load-bearing ring to move in the vertical direction in the inner cavity of the dehydration tank. The limiting column is used to release the control of the lifting component over the load-bearing ring. A cleaning mechanism is arranged on the surface of the load-bearing ring. The cleaning mechanism includes a cleaning component and a washing component. The cleaning component and the washing component are respectively connected to the load-bearing ring. When the load-bearing ring moves in the vertical direction in the inner cavity of the dehydration tank, the cleaning component cooperates with the washing component to clean the toluene attached to the inner wall of the dehydration tank.

2. A chemical reaction dehydration device according to claim 1, characterized in that: The lifting assembly includes a fixing ring fixedly installed on the annular side wall of the dehydration tank, and two groups of fixing rings are provided and respectively located at the upper and lower ends of the dehydration tank, and multiple groups of threaded rods are rotatably installed between the two groups of fixing rings, and the multiple groups of threaded rods are commonly threadedly connected with a control ring, and the control ring is sleeved on the outside of the dehydration tank. The bearing ring is made of magnetic material, and a magnetic ring that cooperates with the bearing ring is fixedly installed on the inner side wall of the control ring. The top ends of the multiple groups of threaded rods extend to the top of the fixing ring and are respectively fixedly installed with synchronous gear plates, and the multiple groups of synchronous gear plates are commonly connected with a synchronous belt, and the top end of one group of threaded rods is connected with a motor.

3. A chemical reaction dehydration device according to claim 1, characterized in that: The cleaning assembly comprises a plurality of support rods fixedly mounted on the side wall of the floating platform, wherein the ends of the plurality of support rods away from the floating platform are respectively connected to the bearing rings, and the annular side wall of the bearing rings is provided with a plurality of evenly distributed brushes.

4. A chemical reaction dehydration device according to claim 3, characterized in that: The cleaning assembly comprises an annular water storage cavity which is opened downwardly from the surface of a carrying ring, and a guide hole which is connected with the water storage cavity is opened inwardly on the side wall of the carrying ring.

5. A chemical reaction dehydration device according to claim 1, characterized in that: The bottom wall of the floating platform is provided with a closing component that cooperates with the drainage pipe. The closing component includes a plurality of vertical rods fixedly installed on the bottom wall of the floating platform, and a sealing plate is fixedly installed on the bottom ends of the plurality of vertical rods.

6. A chemical reaction dehydration device according to claim 1, characterized in that: A guide rod is fixedly installed between the inner top wall and the inner bottom wall of the dehydration tank, and the guide rod is slidably connected with the floating platform along the vertical direction.

7. A chemical reaction dehydration device according to claim 1, characterized in that: The bottom wall of the dehydration tank is configured as a funnel-shaped structure.

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