Catalyst preparation kettle
Technical field
It the utility model is related to a kind of chemical production equipment, and in particular to a kind of catalyst preparation kettle.
Background technology
At present, diethyl toluene diamine is a kind of quick amine chain extender, is mainly used in polyurethane and epoxy resin is consolidated
It agent, can also use as the antioxidant of oil product chemical intermediate, be used recently as high ferro Technique Popularizing, in polyurethane
Reaction injection molding and spray polyurea development it is swift and violent, diethyl toluene diamine is as raw material very good on spray polyurea
It is used widely.When preparing diethyl toluene diamine, it is necessary to first prepare " arylamine-aluminium " catalyst in catalyst preparation kettle
System, the catalyst used is generally for aluminium powder, zinc powder, alchlor and alkyl aluminum.For the noble metal of this less soluble class
Catalyst feed, in the preparation due to being difficult stirring, and disperse uneven, the stirring side typically used after charging aperture input
Formula is that airflow stirring or agitating shaft and stirring vane are stirred, and there is in the local material for having air-flow to pass through for airflow stirring
Leaching effect is good, and poor in the local mixing effect that air-flow is not up to, that is, stirs the shortcomings of uneven.So typically use motor
Drive the mode of agitating shaft to carry out, so after in catalyst input kettle, quickly rotated by blade, catalyst is crushed
Stir, be then directly entered progress next step reaction in reactor from preparation kettle again.Existing stirring by agitating shaft
The mode of mixing is generally paddle stirring or pusher stirring, and this several agitating mode can not all carry out sufficiently shearing point to catalyst
Dissipate, it is poor to be mixed with effect, and after the powder catalysts such as aluminium powder are according in quantitative input kettle, is easily adhered one
Rise, it is impossible to fully effectively mixed in kettle, influence the preparation effect of catalyst system.
The content of the invention
The defects of the purpose of this utility model exists aiming at prior art, there is provided it is a kind of simple in construction, thing can be changed
Direction of flow, gradual comprehensive stirring is realized, so as to improve the catalyst preparation kettle of stirring and mixing effect.
The technical solution of the utility model is:Catalyst preparation kettle, including kettle and the agitating shaft in kettle, it is described
The top of kettle is provided with charging aperture, and catalyst distributor is provided with below charging aperture on the agitating shaft, the kettle
Top is additionally provided with the air inlet pipe stretched into inside kettle, and the lower end of the air inlet pipe is provided with the jet thrust positioned at agitating shaft side, institute
State the top that jet thrust is located at catalyst distributor;
It is also equipped with the agitating shaft and the vertically disposed stirring vane of agitating shaft;It is located at paddle on the agitating shaft
Horizontal stirring base is additionally provided with below piece, the upper surface of the stirring base is provided with multiple inclined stirrer gears, multiple to stir
Teeth outside emitting shape centered on agitating shaft is distributed on stirring base, and the lower surface of the stirring base, which is provided with, is located at kettle
The stirring cage of bottom;
One side bottom of the kettle is provided with return duct, is provided with reflux pump on the return duct, the reflux pump it is defeated
Go out end to connect by the top of pipeline and kettle.
Stirrer gear positioned at agitating shaft both sides is respectively two rows, and the height close to the stirrer gear of agitating shaft is less than stirring for outside
Teeth.
The catalyst distributor is the disk body being horizontally set in kettle, and the disk body is provided with multiple dispersion holes.
The shape of the stirring cage is adapted with the shape of autoclave body bottom.
Venthole is additionally provided with the top of the kettle.
The utility model compared with prior art, has advantages below:It is simple in construction, by catalyst distributor, stir
Mix blade and stirrer gear and stir the synergy of cage, flow direction of the material in kettle can be changed, realized by stirrer gear
Spiral progressive flows up, by stirring vane and catalyst distributor downwards and to the flowing of inner wall of kettle direction, so as to real
Existing gradual comprehensive stirring, so as to improve stirring and mixing effect;Nitrogen is sprayed into by air inlet pipe, catalyst can not only be prevented
Distributor blocks, and can play a protective role, and improves operating efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
In figure:1st, kettle, 2, agitating shaft, 3, charging aperture, 4, catalyst distributor, 5, air inlet pipe, 6, jet thrust, 7, scattered
Hole, 8, stirring vane, 9, stirring base, 10, stirrer gear, 11, stirring cage, 12, return duct, 13, reflux pump, 14, venthole.
Embodiment
Here is that the utility model is further illustrated in conjunction with the accompanying drawings and embodiments.
Reference picture 1, catalyst preparation kettle, including kettle 1 and the agitating shaft 2 in kettle 1, the top of kettle 1 are provided with
Charging aperture 3, catalyst distributor 4 is installed positioned at the lower section of charging aperture 3 on agitating shaft 2, catalyst distributor 4 is is horizontally set on
Disk body in kettle 1, disk body are provided with multiple dispersion holes 7, and such agitating shaft 2 can drive disk body to rotate when rotating, so that
Catalyst powder is scattered out of dispersion hole 7, can so be evenly distributed in kettle 1, can improve dispersion mixing.
The top of kettle 1 is additionally provided with the air inlet pipe 5 stretched into inside kettle 1, is provided with the lower end of air inlet pipe 5 and is located at agitating shaft
The jet thrust 6 of 2 sides, jet thrust 6 are located at the top of catalyst distributor 4, can be right by the jet thrust 6 of the front end of air inlet pipe 5
The catalyst distributor 4 of rotation carries out nitrogen jet, so as to effectively prevent catalyst powder from blocking dispersion hole 7, can improve distribution
Dispersion effect.
Stirring vane 8 vertically disposed with agitating shaft 2 is also equipped with agitating shaft 2, is located at stirring vane on agitating shaft 2
8 lower section is additionally provided with horizontal stirring base 9, and multiple inclined stirrer gears 10 are provided with the upper surface of stirring base 9, multiple to stir
The outside emitting shape centered on agitating shaft 2 of teeth 10 is distributed on stirring base 9, and the stirrer gear 10 positioned at the both sides of agitating shaft 2 divides
Not Wei two rows, close to agitating shaft 2 stirrer gear 10 height be less than outside stirrer gear, stirring base 9 lower surface be provided with
Stirring cage 11 positioned at the bottom of kettle 1, agitating shaft 2 drives stirring vane 8, stirring base 9 and catalyst distribution simultaneously during stirring
Device 4 rotates, and so in whipping process, stirring base 9 drives stirrer gear 10 to rotate, because the height of stirrer gear 10 is different, this
Sample stirrer gear 10 in stirring drives the material in kettle 1 to rotate in the shape of a spiral from inside to outside, and realizes that one-level is mixed to external diffusion
Close, when touching high stirrer gear 10, material is stopped, realizes that two level is stirred, so continue rotation until connecing
The inwall of kettle 1 is touched, and is rotated up, when touching with 2 vertically disposed stirring vane 8 of agitating shaft, the side of stirring vane 8 one
Face, which plays a part of stopping, to be mixed, and on the other hand can be changed the direction of rotation of material, be realized that three-level is stirred, thing
Material continues up, and can also be realized by the catalyst distributor 4 of rotation and stop that material continues the effect risen, give downward work
Firmly, multi-faceted mixing, good mixing effect are realized.
Return duct 12 is provided with a side bottom of kettle 1, reflux pump 13, the output of reflux pump 13 are installed on return duct 12
End is connected by pipeline with the top of kettle 1, can be defeated by return duct 12 by liquid stirred in kettle etc. by reflux pump 3
The top of kettle 1 is delivered to, enters from top, can so realize that liquid material washes away work to the dispersion hole 7 on catalyst distributor 4
With further preventing from blocking, on the other hand can also realize the further mixing of material, good mixing effect.
The shape of stirring cage 11 is adapted with the shape of the bottom of kettle 1.So the material of the bottom of kettle 1 can all be stirred
Realization mixing is mixed, prevents material to be deposited on autoclave body bottom, improves mixing effect.
The top of kettle 1 is additionally provided with venthole 14, and nitrogen is discharged after the entrance of air inlet pipe 5 eventually through venthole 14, can
Recycling.
During work, catalyst feed etc. is put into kettle 1 by charging aperture 3, while start 2 turns of motor driven agitating shaft
Dynamic, at this moment, agitating shaft 2 drives catalyst distributor 4, stirring vane 8, stirring base 9 to rotate, material after the entrance of charging aperture 3,
Drop first on catalyst distributor 4, drive material to rotate by the catalyst distributor 4 of rotation, and it is uniform from dispersion hole 7
Trickle down in kettle 1, while stir base 9 and drive stirrer gear 10 to rotate, because the height of stirrer gear 10 is different and inclined
Shape, so in stirring, stirrer gear 10 drives the material in kettle 1 to rotate in the shape of a spiral from inside to outside, and realizes one to external diffusion
Level mixing, when touching high stirrer gear 10, stops to material, realizes that two level is stirred, and it is straight so to continue rotation
To the inwall of contact kettle 1, and rotate up, when touching with 2 vertically disposed stirring vane 8 of agitating shaft, stirring vane 8
On the one hand play a part of stopping and mix, on the other hand can change the direction of rotation of material, realize that three-level stirring is mixed
Close, material continues up, and can also be realized by the catalyst distributor 4 of rotation and stop that material continues the effect risen, give to
Under active force, multi-faceted mixing can be so realized by said structure, flow direction of the material in kettle can be changed, mix
It is good to close effect.
The utility model is not limited to above-mentioned embodiment, in those skilled in the art's possessed knowledge,
It can also be made a variety of changes on the premise of the utility model aims are not departed from, the content after change still falls within the utility model
Protection domain.