Movable catalyst preparation device

Abstract

The utility model relates to the technical field of chemical pharmacy, in particular to a movable catalyst preparation device. A movable catalyst preparation device comprises a solvent tank and a catalyst preparation tank, and the solvent tank is communicated with the catalyst preparation tank through a connecting pipe. The device has the following effects: after the catalyst is fed, the catalyst is flushed into the reaction kettle as clean as possible by a solvent, and the catalyst is moved to an outdoor safe place to be washed, unpicked, dried and then assembled back, so that the probability of organic solvent residue in the catalyst preparation tank in the continuous production process is reduced, and the production efficiency is improved. And the safety risk in the continuous catalyst preparation process is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of chemical pharmacy, and in particular to a movable catalyst preparation device. BACKGROUND

[0002] In a chemical pharmacy enterprise, hydrogenation reaction is a key process, and catalysts such as palladium-carbon series and Raney nickel need to be used. When the catalysts are mixed with organic solvents, there is a great safety risk, especially in a continuous production process. A fixed catalyst preparation tank may have residual organic solvents, increasing the risk of fire and explosion. CONTENT OF THE UTILITY MODEL

[0003] In order to reduce the probability of residual organic solvents in the catalyst preparation tank in the continuous production process and reduce the safety risk in the catalyst preparation process, the application provides a movable catalyst preparation device.

[0004] The movable catalyst preparation device provided by the application adopts the following technical scheme: a solvent tank and a catalyst preparation tank are connected in communication through a connecting pipe.

[0005] Through the above technical scheme, after catalyst feeding is completed, the solvent flushes the catalyst as much as possible to the reaction kettle, and then the catalyst preparation tank is moved to a safe place outdoors for water washing, disassembly and washing, and drying, and then the catalyst preparation tank is assembled back, so that the probability of residual organic solvents in the catalyst preparation tank in the continuous production process is reduced, and the safety risk in the continuous catalyst preparation process is reduced.

[0006] Preferably, the nitrogen protection structure further comprises a vacuum pipe, one end of the vacuum pipe is in communication with the solvent tank, and the other end of the vacuum pipe is used for providing nitrogen into the solvent tank.

[0007] Through the above technical scheme, nitrogen enters the solvent tank from the vacuum pipe, and then enters the catalyst preparation tank from the solvent tank through the connecting pipe, so that the dry and clean solvent tank and the catalyst preparation tank are replaced by nitrogen, and then solvent and catalyst are added into the solvent tank and the catalyst preparation tank respectively, so that the safety risk in the catalyst preparation process is reduced.

[0008] Preferably, the nitrogen protection structure further comprises an emptying pipe, one end of the emptying pipe is in communication with the catalyst preparation tank, and a discharge valve is arranged on the other end of the emptying pipe.

[0009] Through the above technical scheme, when the solvent is pressed into the catalyst preparation tank from the solvent tank by nitrogen, the discharge valve needs to be opened for pressure relief. If the discharge valve is not opened, the solvent cannot be pressed into the catalyst preparation tank from the solvent tank.

[0010] Preferably, the solvent tank is provided with a vacuum pipe interface, a solvent inlet pipe interface and a bottom valve discharge port, the vacuum pipe interface and the solvent inlet pipe interface are arranged at the top of the solvent tank, the bottom valve discharge port is arranged at the bottom of the solvent tank, the vacuum pipe interface is in communication with the vacuum pipe, the catalyst preparation tank is provided with a catalyst feeding port, a vacuum interface, a pipe interface and a discharge port, the catalyst feeding port, the vacuum interface, the pipe interface and the discharge port are arranged at the top of the catalyst preparation tank, one end of the connecting pipe is in communication with the bottom valve discharge port, the other end of the connecting pipe is in communication with the discharge port, and the vacuum interface is in communication with the vacuum pipe.

[0011] By adopting the above technical scheme, the dry and clean catalyst preparation tank is first replaced with nitrogen, then the required catalyst is safely fed from the catalyst feeding port, the required solvent is fed into the solvent tank from the solvent inlet pipe interface, and nitrogen replacement is performed again; and by pressurizing with nitrogen, the solvent is pressed into the catalyst preparation tank through the connecting pipe, and the prepared catalyst can also be pressed into the reaction kettle under the protection of nitrogen pressure through the pipe interface.

[0012] Preferably, the catalyst preparation tank is provided with a bottom insertion pipe, the bottom insertion pipe is inserted into the bottom of the catalyst preparation tank from the pipe interface, and the other end of the bottom insertion pipe is used to connect with the reaction kettle.

[0013] By adopting the above technical scheme, the bottom insertion pipe reaches the bottom of the catalyst preparation tank, which facilitates the pressurization of the prepared catalyst into the reaction kettle with nitrogen, thereby improving the preparation efficiency.

[0014] Preferably, an air interface is integrated at the end of the bottom insertion pipe away from the catalyst preparation tank, the air interface is in communication with the bottom insertion pipe, and the air interface is used to blow air into the catalyst preparation tank.

[0015] By adopting the above technical scheme, the bottom insertion pipe in the catalyst preparation tank blows air into the catalyst preparation tank, which makes the catalyst uniformly dispersed in the solvent, thereby improving the efficiency of catalyst preparation.

[0016] Preferably, a stirring assembly is arranged in the catalyst preparation tank, a driving member for driving the stirring assembly to rotate is arranged outside the catalyst preparation tank, and the rotation axis of the stirring assembly and the catalyst preparation tank are in the same straight line.

[0017] By adopting the above technical scheme, the driving member drives the stirring assembly to rotate in the catalyst preparation tank along the axial direction of the catalyst preparation tank, which makes the catalyst better and more efficiently dispersed in the solvent, makes the catalyst uniformly dispersed in the solvent, and improves the efficiency of catalyst preparation.

[0018] Preferably, the solvent tank and the catalyst preparation tank are arranged on the mobile trolley, and the bottom of the mobile trolley is provided with rolling wheels, and one side of the mobile trolley is provided with a trolley handle.

[0019] By using the above technical scheme, after the feeding is completed, the mobile trolley is used to move the solvent tank and the catalyst preparation tank to a safe area for cleaning and drying, so as to be used again.

[0020] In summary, the present application has at least one of the following beneficial technical effects:

[0021] 1. Reducing the risk of operating personnel operating under nitrogen protection;

[0022] 2. Avoiding the secondary safety risk caused by the fixed catalyst preparation tank;

[0023] 3. Thoroughly cleaning between batches to ensure no solvent residue;

[0024] 4. Reducing the risk of fire and explosion;

[0025] 5. Improving the safety of operating personnel;

[0026] 6. Suitable for chemical and pharmaceutical enterprises with frequent product switching; BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a partial structure schematic diagram of the present application;

[0028] Figure 2 is a partial structure schematic diagram of the present application;

[0029] Figure 3 is a partial structure schematic diagram of the present application;

[0030] Figure 4 is a partial structure schematic diagram of the present application.

[0031] BRIEF DESCRIPTION OF DRAWINGS DETAILED DESCRIPTION

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] In order to reduce the probability of organic solvent residues in the catalyst preparation tank 120 in the continuous production process, reduce the safety risk in the catalyst preparation process, the application provides a movable catalyst preparation device.

[0034] Reference Figures 1-4 A movable catalyst preparation device, comprising a solvent tank 110 and a catalyst preparation tank 120, the solvent tank 110 and the catalyst preparation tank 120 are connected through a connecting pipe 111, the bottom of the solvent tank 110 and the catalyst preparation tank 120 is provided with a mobile vehicle 130, the solvent tank 110 and the catalyst preparation tank 120 are arranged on the mobile vehicle 130, the bottom of the mobile vehicle 130 is provided with a roller 131, one side of the mobile vehicle 130 is provided with a vehicle support rod 132.

[0035] Specifically, the solvent tank 110 is provided with a solvent inlet pipe interface 112 and a bottom valve discharge port 113, the solvent inlet pipe interface 112 is arranged at the top of the solvent tank 110, the bottom valve discharge port 113 is opened at the bottom of the solvent tank 110, the catalyst preparation tank 120 is provided with a catalyst feeding port 121, a pipe interface 122 and a discharge port 123, the catalyst feeding port 121, the pipe interface 122 and the discharge port 123 are arranged at the top of the catalyst preparation tank 120, one end of the connecting pipe 111 is communicated with the bottom valve discharge port 113, the other end of the connecting pipe 111 is communicated with the discharge port 123, in this embodiment, there are two discharge ports 123, one of which is only used for feeding, and the other also has a spraying function.

[0036] In addition, it also includes a nitrogen protection structure, the nitrogen protection structure includes a vacuum pipe 141 and an exhaust pipe 142, one end of the vacuum pipe 141 is communicated with the solvent tank 110, the other end of the vacuum pipe 141 is used to provide nitrogen to the solvent tank 110, one end of the exhaust pipe 142 is communicated with the catalyst preparation tank 120, the other end of the exhaust pipe 142 is provided with a discharge valve 143; the solvent tank 110 is also provided with a vacuum pipe interface 114, the vacuum pipe interface 114 is arranged at the top of the solvent tank 110, the vacuum pipe interface 114 is communicated with the vacuum pipe 141, the catalyst preparation tank 120 is also provided with an exhaust interface 124, the catalyst feeding port 121 and the exhaust interface 124 are arranged at the top of the catalyst preparation tank 120, the exhaust interface 124 is communicated with the exhaust pipe 142, when the solvent is pressed into the catalyst preparation tank 120 from the solvent tank 110 by nitrogen, the discharge valve 143 needs to be opened for pressure relief, if the discharge valve 143 is not opened, the solvent cannot be pressed into the catalyst preparation tank 120 from the solvent tank 110.

[0037] First, the dry and clean catalyst preparation tank 120 is replaced by nitrogen, and then the required catalyst is safely put into the catalyst feeding port 121, the required solvent is poured into the solvent tank 110 from the solvent inlet port 112, and nitrogen replacement is performed again; and by pressurizing with nitrogen, the solvent is pressed into the catalyst preparation tank 120 through the connecting pipe 111, and the prepared catalyst can also be pressed into the reaction kettle under the protection of nitrogen pressure through the insertion pipe interface 122, reducing the safety risk in the catalyst preparation process; after the catalyst feeding is completed, the solvent is washed from the solvent tank 110 to the catalyst preparation tank 120 for one to two times, reducing the probability of organic solvent residue in the catalyst preparation tank 120 in the continuous production process; after the feeding is completed, the mobile vehicle 130 moves the solvent tank 110 and the catalyst preparation tank 120 to the safety area for disassembly, washing and drying, so as to be used again.

[0038] Further, the catalyst preparation tank 120 is provided with an insertion bottom pipe 150, the insertion bottom pipe 150 is inserted into the bottom of the catalyst preparation tank 120 from the insertion pipe interface 122, and the other end of the insertion bottom pipe 150 is used to connect with the reaction kettle, the insertion bottom pipe 150 passes to the bottom of the catalyst preparation tank 120, facilitating the pressurization with nitrogen to press the prepared catalyst into the reaction kettle, and improving the preparation efficiency.

[0039] In order to improve the efficiency of catalyst preparation, the end of the insertion bottom pipe 150 away from the catalyst preparation tank 120 is integrated with an air inlet interface 151, the air inlet interface 151 is communicated with the insertion bottom pipe 150, and the air inlet interface 151 is used to blow air into the catalyst preparation tank 120, and the insertion bottom pipe 150 in the catalyst preparation tank 120 is used to blow air into the catalyst preparation tank 120, so that the catalyst is uniformly dispersed in the solvent, and the efficiency of catalyst preparation is improved.

[0040] In another embodiment, a stirring assembly 160 is arranged in the catalyst preparation tank 120, and a driving member 163 for driving the stirring assembly 160 to rotate is arranged outside the catalyst preparation tank 120, the rotation axis of the stirring assembly 160 and the catalyst preparation tank 120 are in the same straight line, the stirring assembly 160 includes a stirring rod 161 and a plurality of stirring blades 162, the stirring rod 161 is inserted into the catalyst preparation tank 120 in the vertical direction, the stirring blades 162 are arranged radially along the stirring rod 161, and the plurality of stirring blades 162 are arranged at equal angles along the circumference of the stirring rod 161, the driving member 163 is a pneumatic motor, the pneumatic motor drives the stirring rod 161 to rotate in the catalyst preparation tank 120 along the axial direction of the catalyst preparation tank 120, the stirring blades 162 stir the catalyst, so that the catalyst is better and more efficiently dispersed in the solvent, the catalyst is uniformly dispersed in the solvent, the efficiency of catalyst preparation is improved, and in this embodiment, the insertion bottom pipe 150 is no longer inserted straight down from top to bottom, but is attached to the bottom of the catalyst preparation tank 120.

[0041] The implementation principle of the mobile catalyst preparation device is as follows: first, the dry and clean catalyst preparation tank 120 is replaced by nitrogen, then the required catalyst is safely put into the catalyst feeding port 121, the required solvent is poured into the solvent tank 110 from the solvent inlet port 112, and nitrogen replacement is performed again; and the solvent is pressed into the catalyst preparation tank 120 through the connecting pipe 111 under the pressure of nitrogen, and the prepared catalyst can also be pressed into the reaction kettle through the pipe insertion port 122 under the protection of nitrogen pressure, so as to reduce the safety risk in the catalyst preparation process; after the catalyst feeding is completed, the solvent is washed in the catalyst preparation tank 120 for one to two times, after the feeding is completed, the mobile vehicle 130 moves the solvent tank 110 and the catalyst preparation tank 120 to a safe area for disassembly, water washing and drying, so as to reduce the probability of residual organic solvent in the catalyst preparation tank 120 in the continuous production process, so as to be used again.

[0042] The embodiments of the specific embodiment are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A portable catalyst preparation device, characterized in that: It includes a solvent tank (110) and a catalyst preparation tank (120), which are connected by a connecting pipe (111); It also includes a nitrogen protection structure, which includes a vacuum tube (141), one end of which is connected to the solvent tank (110), and the other end of which is used to supply nitrogen into the solvent tank (110); The nitrogen protection structure also includes an exhaust pipe (142), one end of which is connected to the catalyst preparation tank (120), and the other end of which is provided with an exhaust valve (143). The solvent tank (110) and the catalyst preparation tank (120) are provided with a mobile cart (130) at the bottom. The solvent tank (110) and the catalyst preparation tank (120) are spaced apart on the mobile cart (130). The bottom of the mobile cart (130) is provided with rollers (131), and a handrail (132) is provided on one side of the mobile cart (130).

2. The portable catalyst preparation device according to claim 1, characterized in that: The solvent tank (110) is provided with a vacuum tube interface (114), a solvent inlet interface (112), and a bottom valve discharge port (113). The vacuum tube interface (114) and the solvent inlet interface (112) are located at the top of the solvent tank (110), and the bottom valve discharge port (113) is located at the bottom of the solvent tank (110). The vacuum tube interface (114) is connected to the vacuum tube (141). The catalyst preparation tank (120) is provided with a catalyst feeding port (121) and an venting port. The catalyst feed port (121), the vent port (124), the tube port (122), and the vent port (123) are all located at the top of the catalyst preparation tank (120). One end of the connecting pipe (111) is connected to the bottom valve discharge port (113), and the other end of the connecting pipe (111) is connected to the vent port (123). The vent port (124) is connected to the vent pipe (142).

3. The portable catalyst preparation device according to claim 2, characterized in that: The catalyst preparation vessel (120) is provided with a bottom insertion tube (150), which is inserted from the insertion tube interface (122) to the bottom of the catalyst preparation vessel (120), and the other end of the bottom insertion tube (150) is used to connect to the reaction vessel.

4. The portable catalyst preparation device according to claim 3, characterized in that: The end of the insertion tube (150) away from the catalyst preparation tank (120) is integrated with a vent (151), which is connected to the insertion tube (150) and is used to blow air into the catalyst preparation tank (120).

5. The portable catalyst preparation device according to claim 1, characterized in that: The catalyst preparation tank (120) is provided with a stirring assembly (160), and a driving component (163) is provided outside the catalyst preparation tank (120) to drive the stirring assembly (160) to rotate. The rotation axis of the stirring assembly (160) and the axis of the catalyst preparation tank (120) are on the same straight line.

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