CN208082469U - A kind of closed preparation facilities of niobium oxide - Google Patents
A kind of closed preparation facilities of niobium oxide Download PDFInfo
- Publication number
- CN208082469U CN208082469U CN201820279073.2U CN201820279073U CN208082469U CN 208082469 U CN208082469 U CN 208082469U CN 201820279073 U CN201820279073 U CN 201820279073U CN 208082469 U CN208082469 U CN 208082469U
- Authority
- CN
- China
- Prior art keywords
- liquefied ammonia
- tank
- feed pipe
- liquid
- tank body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The utility model is related to chemical production equipments, and in particular to a kind of closed preparation facilities of niobium oxide, including confined reaction tank, liquid ammonia storage tank；The confined reaction tank includes tank body and the chuck outside tank body；The tank interior side is provided with downward opening liquefied ammonia feed pipe, and the liquefied ammonia feed pipe liquid level part below is provided with several through-holes；The liquid ammonia storage tank is located at the upper side of confined reaction tank, and the liquid ammonia storage tank bottom is provided with liquefied ammonia discharge nozzle；The liquefied ammonia discharge nozzle is connected to liquefied ammonia feed pipe；The liquid ammonia storage tank inner upper end is connected to confined reaction tank inner upper end by constant pressure pipe；The agitating paddle is in " going out " font structure, can be conducive to improve device mixing effect, prevents hot-spot from causing the heated a large amount of effusions of ammonia, the design of tank body liner double layer anticorrosive layer that device is enabled to have good Corrosion Protection.
Description
Technical field
The utility model is related to chemical production equipments, and in particular to a kind of closed preparation facilities of niobium oxide.
Background technology
Niobium oxide is produced with the niobium liquid during liquid-liquid extraction isolating tantalum niobium.In niobium liquid, niobium is with H2NbF7With
H2NbOF5Form exists, and when being neutralized to pH=8~9 with ammonia, that is, forms the white niobium hydroxide precipitation for being insoluble in water.
Neutralization precipitation operation in the prior art is that the liquefied ammonia of fluorine niobic acid strip liquor and neutralization precipitation is added in settling tank
Amount, and it is 8-9 so that liquefied ammonia supersaturation is reached the pH value of precipitation supernatant, that is, is considered as precipitation terminal.After precipitation, filter while hot
Obtain white niobium hydroxide precipitation.Since the acidity of fluorine niobic acid strip liquor is stronger, especially hydrofluoric acid has strongly tank body
Corrosivity, general reaction kettle be easy to cause in the neutralization precipitation tank produced as niobium oxide inner tank wall be corroded penetrate and
Lead to safety accident, further, since neutralization precipitation step is exothermic reaction, traditional feeding mode can cause local reaction liquid dense
Height is spent, to cause hot-spot and make the heated a large amount of effusions of ammonia.Simultaneously because the pressure in confined reaction tank is larger,
It must use dehvery pump that could input the liquefied ammonia in storage tank in retort.
Utility model content
For the above-mentioned shortcoming of the prior art, the utility model provides a kind of closed preparation facilities of niobium oxide.Energy
It is enough to be conducive to improve device mixing effect, prevent hot-spot from causing the heated a large amount of effusions of ammonia, tank body liner double layer anticorrosive layer
Design enable to device have good Corrosion Protection.
A kind of closed preparation facilities of niobium oxide described in the utility model, including confined reaction tank, liquid ammonia storage tank；
The confined reaction tank includes tank body and the chuck outside tank body；It is provided with motor above the tank body, institute
It states and is connected with agitating shaft on motor, agitating paddle is connected on the agitating shaft；It is provided with feed inlet above the tank body；The folder
Set upper side is provided with coolant inlet；The chuck lower end is provided with cooling liquid outlet；The tank interior side is provided with out
The liquefied ammonia feed pipe of mouth down, the liquefied ammonia feed pipe liquid level part below are provided with several through-holes；
The liquid ammonia storage tank is located at the upper side of confined reaction tank, and the liquid ammonia storage tank bottom is provided with liquefied ammonia discharge nozzle；
The liquefied ammonia discharge nozzle is connected to liquefied ammonia feed pipe；The liquid ammonia storage tank inner upper end is connected to by constant pressure pipe in confined reaction tank
Portion upper end；
The agitating paddle is in " going out " font structure, and the agitating paddle includes 4 horizontal supports and 2 longitudinal carriers；It is described
Horizontal distance between liquefied ammonia feed pipe and agitating shaft is less than the horizontal distance between longitudinal carrier and agitating shaft, the liquefied ammonia into
The lower end of expects pipe is less than the upper end of longitudinal carrier in vertical direction.
Further, the inner tank wall is provided with the first erosion resistant coating；First erosion resistant coating is close in tank body on one side
Wall is arranged, and the first erosion resistant coating another side is provided with the second erosion resistant coating.
Further, first erosion resistant coating and the second erosion resistant coating are made of polytetrafluoroethylene (PTFE).
Further, the liquid ammonia storage tank, liquefied ammonia feed pipe, liquefied ammonia discharge nozzle and constant pressure pipe are by polytetrafluoroethylene (PTFE) system
At.
Further, it is provided with insulating layer outside the chuck.
Further, the insulating layer is made of polyurethane.
Compared with prior art, the utility model has an advantageous effect in that：
1, liquefied ammonia feed pipe and the agitating paddle of specific shape can be discharged into the liquefied ammonia inside niobium liquid in the present invention
It breaks up and is uniformly blended into niobium liquid, hot-spot can be prevented and react non-uniform situation, be conducive to quickening reaction efficiency and carry
High yield quality.
2, liquefied ammonia in liquid ammonia storage tank is enabled to by being provided with constant pressure pipe between liquid ammonia storage tank and confined reaction tank
It can smoothly enter into confined reaction tank, carry out stock without using dehvery pump so that the seal of whole device is good, on constant pressure pipe
The pressure gauge of setting is convenient for the pressure condition in observation confined reaction tank at any time.
3, it can prevent hydrofluoric acid from extending making for equipment to the corrosion of inner tank wall by the way that erosion resistant coating is arranged in inner tank wall
It is lost when single layer erosion resistant coating being avoided to fall off with the service life in addition, better anti-corrosion effect can be played by the way that two layers of erosion resistant coating is arranged
To the protecting effect of tank body.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the closed preparation facilities of niobium oxide provided by the utility model；
Fig. 2 is the partial enlarged view at the positions A in Fig. 1；
In figure：1- confined reaction tanks；2- liquid ammonia storage tanks；4- motors；5- tank bodies；6- chucks；7- agitating shafts；8- agitating paddles；
9- feed inlets；10- coolant inlets；11- cooling liquid outlets；12- liquefied ammonia feed pipes；14- liquefied ammonia discharge nozzles；15- material inlet valves；
16- constant pressure pipes；22- insulating layers；The first erosion resistant coatings of 23-；The second erosion resistant coatings of 24-；81- longitudinal carriers；82- horizontal supports.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
A kind of closed preparation facilities of niobium oxide described in the utility model, including confined reaction tank 1, liquid ammonia storage tank 2；
The confined reaction tank 1 includes tank body 5 and the chuck 6 outside tank body 5；5 top of the tank body is provided with electricity
Machine 4 is connected with agitating shaft 7 on the motor 4, agitating paddle 8 is connected on the agitating shaft 7；The top of the tank body 3 be provided with into
Material mouth 9；6 upper end of the chuck is provided with coolant inlet 10；6 lower end of the chuck is provided with cooling liquid outlet 11；The tank
5 interior side of body is provided with downward opening liquefied ammonia feed pipe 12, and 12 liquid level of liquefied ammonia feed pipe part below is provided with
Several through-holes；
The liquid ammonia storage tank 2 is located at 1 upper side of confined reaction tank, and 2 bottom of the liquid ammonia storage tank is provided with liquefied ammonia discharging
Pipe 14；The liquefied ammonia discharge nozzle 14 is connected to liquefied ammonia feed pipe 12；2 inner upper end of the liquid ammonia storage tank is connected to by constant pressure pipe 16
1 inner upper end of confined reaction tank；
The agitating paddle 8 is in " going out " font structure, and the agitating paddle 8 includes 4 horizontal supports 82 and 2 longitudinal carriers
81；Horizontal distance between the liquefied ammonia feed pipe 12 and agitating shaft 7 be less than between longitudinal carrier 81 and agitating shaft 7 it is horizontal away from
From the lower end of the liquefied ammonia feed pipe 12 is less than the upper end of longitudinal carrier 81 in vertical direction.
In the present embodiment, 5 inner wall of the tank body is provided with the first erosion resistant coating 23；First erosion resistant coating 23 is close on one side
5 inner wall of tank body is arranged, and 23 another side of the first erosion resistant coating is provided with the second erosion resistant coating 24.
In the present embodiment, first erosion resistant coating, 23 and second erosion resistant coating 24 is made of polytetrafluoroethylene (PTFE).By in tank
Internal wall setting erosion resistant coating can prevent hydrofluoric acid from extending the service life of equipment to the corrosion of inner tank wall, in addition, by setting
Better anti-corrosion effect can be played by setting two layers of erosion resistant coating, and the protecting effect to tank body is lost when single layer erosion resistant coating being avoided to fall off.
In the present embodiment, the liquid ammonia storage tank 2, liquefied ammonia feed pipe 12, liquefied ammonia discharge nozzle 14 and constant pressure pipe 16 are by poly- four
Vinyl fluoride is made.Polytetrafluoroethylene (PTFE) (being abbreviated as PTFE) has the characteristics that antiacid alkali resistant, resists various organic solvents, is very suitable for protecting
Deposit and convey liquefied ammonia.
In the present embodiment, insulating layer 22 is provided with outside the chuck 6.
In the present embodiment, the insulating layer 22 is made of polyurethane.Insulating layer 22 made of polyurethane is conducive to remain close
Close the temperature in retort 1.
Operation principle using the closed preparation facilities of niobium oxide described in the utility model is：By feed inlet 9 to close
It closes and is pumped into niobium liquid (the minimum addition of niobium liquid should not there be the through-hole on liquefied ammonia feed pipe 12) in retort 1, open motor 4,
Agitating paddle 8 is stirred niobium liquid, opens the first valve 15 and is passed through liquefied ammonia into niobium liquid, due to liquid ammonia storage tank 2 and confined reaction
Constant pressure pipe 16 is provided between tank 1 enables to the liquefied ammonia in liquid ammonia storage tank 2 to can smoothly enter into confined reaction tank 1, constant pressure pipe 16
The pressure gauge of upper setting is convenient for the pressure condition in observation confined reaction tank 1 at any time.When liquefied ammonia passes through on liquefied ammonia feed pipe 12
When through-hole is discharged into inside niobium liquid, it can be broken up rapidly and be uniformly blended into niobium liquid by longitudinal carrier 81 and horizontal support 82, it can
It prevents hot-spot and reacts non-uniform situation, be conducive to accelerate reaction efficiency raising product quality.If reaction temperature is excessively high,
Coolant liquid can be passed through by coolant inlet 10 into chuck 6 to cool down；After the completion of reaction, mixed liquor is subjected to next step
Filter operation.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of closed preparation facilities of niobium oxide, which is characterized in that including confined reaction tank (1), liquid ammonia storage tank (2)；
The confined reaction tank (1) includes tank body (5) and the chuck (6) positioned at tank body (5) outside；It is set above the tank body (5)
It is equipped with motor (4), agitating shaft (7) is connected on the motor (4), agitating paddle (8) is connected on the agitating shaft (7)；It is described
It is provided with feed inlet (9) above tank body (5)；Chuck (6) upper end is provided with coolant inlet (10)；Under the chuck (6)
End is provided with cooling liquid outlet (11)；Tank body (5) interior side is provided with downward opening liquefied ammonia feed pipe (12), described
Liquefied ammonia feed pipe (12) liquid level part below is provided with several through-holes；
The liquid ammonia storage tank (2) is located at the upper side of confined reaction tank (1), and liquid ammonia storage tank (2) bottom is provided with liquefied ammonia and goes out
Expects pipe (14)；The liquefied ammonia discharge nozzle (14) is connected to liquefied ammonia feed pipe (12)；Liquid ammonia storage tank (2) inner upper end passes through perseverance
Pressure pipe (16) is connected to confined reaction tank (1) inner upper end；
The agitating paddle (8) is in " going out " font structure, and the agitating paddle (8) includes 4 horizontal supports (82) and 2 longitudinal carriers
(81)；Horizontal distance between the liquefied ammonia feed pipe (12) and agitating shaft (7) be less than longitudinal carrier (81) and agitating shaft (7) it
Between horizontal distance, the lower end of the liquefied ammonia feed pipe (12) is less than the upper end of longitudinal carrier (81) in vertical direction.
2. a kind of closed preparation facilities of niobium oxide according to claim 1, which is characterized in that tank body (5) inner wall
It is provided with the first erosion resistant coating (23)；First erosion resistant coating (23) is close to the setting of tank body (5) inner wall, first anti-corrosion on one side
Layer (23) another side is provided with the second erosion resistant coating (24).
3. a kind of closed preparation facilities of niobium oxide according to claim 2, which is characterized in that first erosion resistant coating
(23) it is made of polytetrafluoroethylene (PTFE) with the second erosion resistant coating (24).
4. a kind of closed preparation facilities of niobium oxide according to claim 1, which is characterized in that the liquid ammonia storage tank (2),
Liquefied ammonia feed pipe (12), liquefied ammonia discharge nozzle (14) and constant pressure pipe (16) are made of polytetrafluoroethylene (PTFE).
5. a kind of closed preparation facilities of niobium oxide according to claim 1, which is characterized in that the chuck (6) is external
It is provided with insulating layer (22).
6. a kind of closed preparation facilities of niobium oxide according to claim 5, which is characterized in that the insulating layer (22) by
Polyurethane is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820279073.2U CN208082469U (en) | 2018-02-28 | 2018-02-28 | A kind of closed preparation facilities of niobium oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820279073.2U CN208082469U (en) | 2018-02-28 | 2018-02-28 | A kind of closed preparation facilities of niobium oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208082469U true CN208082469U (en) | 2018-11-13 |
Family
ID=64060895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820279073.2U Active CN208082469U (en) | 2018-02-28 | 2018-02-28 | A kind of closed preparation facilities of niobium oxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208082469U (en) |
-
2018
- 2018-02-28 CN CN201820279073.2U patent/CN208082469U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206276381U (en) | A kind of reactor of quick blend feedstock | |
| CN208082469U (en) | A kind of closed preparation facilities of niobium oxide | |
| CN100515956C (en) | Method for extracting nickel sulfate from waste solution of copper electrolysis | |
| CN105903418A (en) | Production device for water-based paint and working method thereof | |
| CN206604483U (en) | A kind of reactor for preparing polyethylene glycol butyl ether | |
| CN206577754U (en) | A kind of production reactor of 107 silicon rubber | |
| CN205550247U (en) | Annular spraying fog formula ethoxylation ware follows outward | |
| CN201545896U (en) | Device for reclaiming circuit board etching waste liquid and producing basic copper chloride | |
| CN218339663U (en) | Lime powder slurrying device for silicon-making flue gas desulfurization | |
| CN206240462U (en) | One kind is used for paracresol production process neutralization step glass lined reaction vessel | |
| CN206415117U (en) | A kind of rare earth oxide produces special continuous precipitation device | |
| CN102605179B (en) | Acid leaching equipment for vanadium-containing shales | |
| CN212610501U (en) | Rapid deacidification and low-sulfur high-yield production system for producing fuel oil by using waste animal and vegetable oil | |
| CN204973894U (en) | A device for producing lithium cell ternary cathode material precursor | |
| CN210646364U (en) | Mixing arrangement is used in polyethylene glycol production | |
| CN109534994A (en) | Adipate monoester process units of continuous feed and application thereof | |
| CN112062101A (en) | Energy-saving continuous sulfur melting device and process thereof | |
| CN107827781B (en) | Production process and equipment for continuously producing diphenylguanidine | |
| CN216137189U (en) | Preparation facilities of copper nitrate | |
| CN205501164U (en) | C22 tricarboxylic acid apparatus for producing | |
| CN215312326U (en) | Vertical reaction device applied to low-profile additive of automobile body part | |
| CN207430111U (en) | A kind of mixing device of textile auxiliary | |
| CN202415690U (en) | Circuit board waste etching solution recovering device | |
| CN216764350U (en) | Calcium carbonate carbonators | |
| CN118274245A (en) | Hydrogen and nitrogen mixed storage device and application thereof in ammonia synthesis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |