Reaction equipment for adding raw materials of powder easy to absorb moisture

Abstract

The utility model relates to reaction equipment for adding a powder raw material easy to absorb moisture. The reaction equipment comprises a reaction kettle; the easily hygroscopic powdery raw material adding unit comprises a powdery raw material containing cavity, an air extractor, an air inlet device and a liquid inlet device, the air extractor, the air inlet device and the liquid inlet device are communicated with the powdery raw material containing cavity, and the powdery raw material containing cavity is provided with a feeding port, a discharging port, a liquid inlet and at least one ventilation port; and the discharge port is arranged to be located at the lowest point of the powdery raw material accommodating cavity and can be aligned with the feed port of the reaction kettle for feeding. According to the reaction equipment for adding the easily-hygroscopic powdery raw material, the easily-hygroscopic powdery raw material adding unit is arranged, moisture of the easily-hygroscopic powdery raw material is removed in the easily-hygroscopic powdery raw material adding unit, and the easily-hygroscopic powdery raw material is conveyed into the reaction kettle through a solvent, so that introduction of moisture of a reaction system is avoided to the greatest extent.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of chemical equipment, concretely relates to a reaction equipment for adding easy hygroscopic powder raw material. BACKGROUND

[0002] In the chemical synthesis method of anhydrous system, in order to improve the yield of product, it is usually necessary to control the water content of the system, and some raw materials, such as aluminum trichloride, cerium trichloride, sodium hydroxide, calcium oxide and copper chloride, have strong water absorption characteristics, which will inevitably introduce water when added to the system, resulting in a decrease in yield.

[0003] For example, for the carbonyl Grignard reaction, it is a reaction of anhydrous system, and in order to inhibit abnormal reactions such as enolization, reduction reaction, condensation reaction, conjugate addition and pinacol coupling, an activator such as cerium trichloride is usually added, but cerium trichloride easily combines with 3 molecules of water to become a hydrated compound, and when cerium trichloride is added to the system, 3 molecules of water will be introduced into the reaction system, resulting in a decrease in yield.

[0004] There is a need in the art to develop a synthesis device that can reduce the possibility of water being introduced into the reaction system by raw materials absorbing water. SUMMARY

[0005] In view of the deficiencies of the prior art, one of the purposes of the utility model is to provide a reaction equipment for adding easy hygroscopic powder raw material, comprising:

[0006] A reaction kettle;

[0007] An easy hygroscopic powder raw material adding unit, comprising a powder raw material containing cavity, a gas extraction device, a gas inlet device and a liquid inlet device in communication with the powder raw material containing cavity, the powder raw material containing cavity is provided with a feed inlet, a discharge outlet, a liquid inlet and at least one vent; the discharge outlet is arranged to be located at the lowest point of the powder raw material containing cavity and can be aligned with the feed inlet of the reaction kettle.

[0008] The discharge outlet of the powder raw material containing cavity is connected with the feed inlet of the reaction kettle.

[0009] The reaction equipment for adding easy hygroscopic powder raw material provided by the utility model sets an easy hygroscopic powder raw material adding unit, loads the easy hygroscopic powder raw material through the feed inlet, closes the feed inlet and the discharge outlet, extracts the moisture in the powder raw material containing cavity through the vent by the gas extraction device, breaks the vacuum by introducing inert gas through the vent by the gas inlet device, and injects the reaction solvent into the powder raw material containing cavity by the liquid inlet device, so that the easy hygroscopic powder raw material is carried into the reaction kettle.

[0010] The outlet is arranged to be located at the lowest point of the powder material containing cavity, which means that the outlet can be directly located at the lowest point of the powder material containing cavity, or located at the lowest point of the powder material containing cavity through position change or structure change or other means. When the liquid inlet device injects the reaction solvent into the powder material containing cavity and carries the hygroscopic powder material into the reaction kettle, the hygroscopic powder material is quickly added into the reaction kettle by gravity.

[0011] The reaction equipment provided by the utility model can remove the moisture carried by the hygroscopic powder material and keep dry, thereby avoiding the introduction of moisture into the reaction system to the maximum extent.

[0012] It should be noted that the reaction kettle described in the application can be a reaction kettle known or new to those skilled in the art and capable of being used for organic synthesis. In general, the reaction kettle is provided with a stirring device.

[0013] The application does not specifically limit the particle size of the powder material.

[0014] Preferably, the hygroscopic powder material adding unit further comprises a heating device arranged outside the powder material containing cavity.

[0015] The heating device cooperates with the air extraction device to remove the moisture carried by the hygroscopic powder material.

[0016] Preferably, the air extraction device comprises an air extraction pump, and the air extraction pump is in communication with the air outlet through a valve.

[0017] Preferably, the air inlet device comprises an inert gas source, and the gas source is in communication with the air inlet through a valve.

[0018] Preferably, the air outlet and the air inlet are the same air port or different air ports.

[0019] Preferably, the hygroscopic powder material adding unit further comprises a shaking component for shaking the powder material containing cavity.

[0020] The shaking component is used for shaking and dispersing the hygroscopic powder material to improve the water removal efficiency.

[0021] Preferably, the liquid inlet device comprises a solvent source, and the solvent source is in communication with the liquid inlet through a valve.

[0022] The solvent source is preferably a solvent used in the reaction system.

[0023] Preferably, the powder material containing cavity and the feed inlet of the reaction kettle are connected through a hose.

[0024] As a preferred technical scheme, the powder material containing cavity has a length direction and a width direction, the moisture-prone powder material adding unit is provided with a rotating part, a rotating shaft of the rotating part is perpendicular to the length direction of the powder material containing cavity, and the powder material containing cavity is arranged to be rotatable around the rotating shaft.

[0025] The feeding port is arranged at one end of the powder material containing cavity, and the discharging port is arranged at the other end of the powder material containing cavity; and the discharging port is aligned with the feeding port of the reaction kettle.

[0026] The powder material containing cavity is provided with an air vent, and an inert gas source and a gas suction pump are communicated with the air vent through a three-way joint.

[0027] The liquid inlet and the feeding port are arranged as one opening.

[0028] Preferably, an electric heating wire is wound outside the powder material containing cavity for heating the powder material containing cavity.

[0029] Compared with the prior art, the application has the following beneficial effects:

[0030] The reaction equipment for adding moisture-prone powder material provided by the utility model avoids the introduction of moisture in the reaction system to the greatest extent by arranging the moisture-prone powder material adding unit, removing moisture from the moisture-prone powder material in the moisture-prone powder material adding unit, and conveying the solvent into the reaction kettle. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The reaction equipment for adding moisture-prone powder material provided by the embodiment is in the structure schematic view in the state of loading and / or water removal.

[0032] Figure 2 The reaction equipment for adding moisture-prone powder material provided by the embodiment is in the structure schematic view in the state of loading and / or water removal.

[0033] Figure 3 The reaction equipment for adding moisture-prone powder material provided by the embodiment is in the structure schematic view in the state of loading and / or water removal. Figure 1 The reaction equipment for adding moisture-prone powder material provided by the embodiment is in the structure schematic view in the state of loading and / or water removal. DETAILED DESCRIPTION

[0034] The technical scheme of the utility model will be further explained and described in combination with the specific embodiments, but it should be explained that the specific embodiment is only a specific implementation and explanation of the essence of the technical scheme of the utility model, and should not be understood as a limitation on the protection scope of the utility model.

[0035] As Figures 1 to 3 ( Figure 1 The reaction equipment for adding moisture-prone powder material provided by the embodiment is in the structure schematic view in the state of loading and / or water removal.Figure 2 A schematic structural view of the reaction equipment for adding the hygroscopic powder raw material in the discharging state provided for the embodiment, Figure 3 As shown in the enlarged schematic structural view of the dashed box, Figure 1 The reaction equipment for adding the hygroscopic powder raw material provided by the embodiment comprises:

[0036] The reaction kettle 100 is internally provided with a stirring structure 101;

[0037] The hygroscopic powder raw material adding unit comprises a powder raw material containing cavity 210, a gas extraction device 220, a gas inlet device 230 and a liquid inlet device 240 which are in communication with the powder raw material containing cavity 210, the powder raw material containing cavity 210 is provided with a feeding port 211, a discharging port 212, a liquid inlet port 213 and a vent 214; the powder raw material containing cavity 210 has a length direction and a width direction, the hygroscopic powder raw material adding unit 200 is provided with a rotating part 270, the rotating shaft of the rotating part 270 is perpendicular to the length direction of the powder raw material containing cavity 210, the powder raw material containing cavity 210 is arranged to be able to rotate around the rotating shaft; the feeding port 211 is arranged at one end of the powder raw material containing cavity 210, and the discharging port 212 is arranged at the other end of the powder raw material containing cavity 210; the powder raw material containing cavity 210 is connected with the feeding port 102 of the reaction kettle through a hose 103. The gas extraction device 220 comprises a gas extraction pump 221, the gas inlet device 230 comprises an inert gas source 231, and the gas extraction pump 221 and the inert gas source 231 are in communication with the vent 214 through a three-way joint. The liquid inlet device 240 comprises a solvent source 241 and is in communication with the liquid inlet port 213 through a valve.

[0038] The hygroscopic powder raw material adding unit further comprises an electric heating wire arranged outside the powder raw material containing cavity 210 as a heating device 250, and a shaking part 260 for shaking the powder raw material containing cavity 210. The shaking part 260 can be selected from existing oscillators, and any existing technology capable of shaking the powder raw material containing cavity 210 can be selected.

[0039] The powder material containing cavity 210 is designed to have a feeding state, a water removing state and a discharging state. In the feeding state, the powder material containing cavity 210 is in a horizontal state or a state close to the horizontal state, the discharging port 212, the air vent 214 and the liquid inlet 213 are closed, the feeding port 211 is opened, and the moisture-sensitive powder material is transferred into the powder material containing cavity 210, and then the powder material containing cavity 210 is in the water removing state; in the water removing state, the powder material containing cavity 210 is kept in the horizontal state or the state close to the horizontal state, the feeding port 211, the discharging port 212 and the liquid inlet 213 are closed, the heating device 250 and the oscillating component 260 are kept on, the air vent 214 is connected to the air extraction device 220 to extract air from the powder material containing cavity 210, and after the water removing is completed, the heating device 250 and the oscillating component 260 are turned off, the air inlet device 230 is connected to introduce inert gas (such as nitrogen) to break the vacuum, and the air vent 214 is closed to enter the discharging state; in the discharging state, the powder material containing cavity 210 is adjusted to be in an inclined state or a vertical state through the rotation of the rotating shaft, so that the discharging port 212 is located at the lowest point of the powder material containing cavity 210, the feeding port 211 and the air vent 214 are closed, the liquid inlet 213 is connected to the solvent source 241, the discharging port 212 is opened, and the moisture-sensitive powder material is carried into the reaction kettle 100 by the solvent.

[0040] In other optional embodiments, the air extraction pump 221 and the inert gas source 231 can be independently connected to different air vents through different valves.

[0041] In optional embodiments, the moisture-sensitive powder material adding unit can not be provided with the heating device 250 and / or the oscillating component 260.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A reaction apparatus for adding hygroscopic powder raw materials, characterized in that, The reaction device comprises: a reaction kettle; a moisture-sensitive powder material adding unit, which comprises a powder material containing cavity, a gas extraction device, a gas inlet device and a liquid inlet device, the powder material containing cavity is provided with a material inlet, a material outlet, a liquid inlet and at least one air vent, the material outlet is arranged at the lowest point of the powder material containing cavity and is aligned with the material inlet of the reaction kettle.

2. The reaction apparatus according to claim 1, wherein The moisture-sensitive powder material adding unit further comprises a heating device arranged outside the powder material containing cavity.

3. The reaction apparatus of claim 1, wherein The gas extraction device comprises a gas extraction pump, which is communicated with the air outlet through a valve.

4. The reaction apparatus of claim 3, wherein The gas inlet device comprises an inert gas source, which is communicated with the gas inlet through a valve.

5. The reaction apparatus of claim 4, wherein The air outlet and the gas inlet are the same air vent or different air vents.

6. The reaction apparatus of claim 1, wherein The moisture-sensitive powder material adding unit further comprises a shaking component for shaking the powder material containing cavity.

7. The reaction apparatus of claim 1 wherein, The liquid inlet device comprises a solvent source, which is communicated with the liquid inlet through a valve.

8. The reaction apparatus of claim 1, wherein The powder material containing cavity is connected with the material inlet of the reaction kettle through a hose.

9. The reaction apparatus as claimed in any one of claims 1 to 8, characterized by The powder material containing cavity has a length direction and a width direction, the moisture-sensitive powder material adding unit is provided with a rotating component, the rotating shaft of the rotating component is perpendicular to the length direction of the powder material containing cavity, and the powder material containing cavity is arranged to be rotatable around the rotating shaft. The material inlet is arranged at one end of the powder material containing cavity, and the material outlet is arranged at the other end of the powder material containing cavity; the material outlet is aligned with the material inlet of the reaction kettle; The powder material containing cavity is provided with one air vent, and the inert gas source and the gas extraction pump are communicated with the air vent through a tee joint; The liquid inlet and the material inlet are arranged as one opening.

10. The reaction apparatus of claim 9, wherein The powder material containing cavity is externally wound with an electric heating wire for heating the powder material containing cavity.

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