CN218793930U - High-purity low-chromium pure nitric acid purification equipment - Google Patents
High-purity low-chromium pure nitric acid purification equipment Download PDFInfo
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- CN218793930U CN218793930U CN202223548735.7U CN202223548735U CN218793930U CN 218793930 U CN218793930 U CN 218793930U CN 202223548735 U CN202223548735 U CN 202223548735U CN 218793930 U CN218793930 U CN 218793930U
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Abstract
The utility model discloses a high-purity low-chromium pure nitric acid purification equipment relates to nitric acid preparation technical field, improves because the condenser plate of installing at the refrigeration plant end can make the inside temperature reduction of collector, and the nitric acid solution after the vaporization gets into to the inside back of collector, easily the condition of liquefaction appears in the inner wall of collector (being close to condenser plate department), and the nitric acid after the liquefaction flows to the bottom of collector along the inner wall of collector, has reduced the problem of purification collecting box to the collection efficiency of nitric acid, including base and the retort of fixed mounting on the base, one side fixed mounting at retort top has the inlet pipe, the top fixed mounting of retort has the motor, the output fixed mounting of motor has the pivot, the pivot is located the inside of retort, the top and the retort of pivot rotate to be connected, the external fixed surface of pivot is connected with a plurality of puddler. The utility model provides the high purification collection efficiency to nitric acid.
Description
Technical Field
The utility model relates to the nitric acid preparation field, in particular to a high-purity low-chromium pure nitric acid purifying device.
Background
Nitric acid is a chemical raw material and is widely applied to the fields of chemical industry, metallurgy, electronics, medicines, dyes, pesticides and the like, high-purity nitric acid can be obtained through purification, the purification refers to separation of impurities in a mixture so as to improve the purity of the nitric acid, and the high-purity nitric acid is mainly obtained through a method of adding ultrapure water into the nitric acid, heating and then condensing.
The utility model discloses a high-purity nitric acid purification device that china utility model (notice number: CN 215655132U) discloses, including reation kettle, reation kettle's bottom is connected with the base, reation kettle's top is installed the motor, the output of motor is connected with first pivot, the outer wall of first pivot is connected with the stirring rake, be connected with the scraper blade in the first pivot, reation kettle's both sides are provided with feed inlet and drain respectively, heating mechanism is installed to reation kettle's inner wall bottom, reation kettle's outer wall is connected with the collecting duct, the internally mounted of collecting duct has the condensing panel, the tip of condensing panel runs through the collecting duct and is connected with refrigeration plant, the inner wall of collecting duct is connected with the second pivot, be connected with the paddle dish in the second pivot, fixedly connected with swash plate in the collecting duct, the purification collecting box is installed to the outer wall of collecting duct. Through making the ascending gas collecting pipe that enters into of nitric acid solution after the vaporization, meet cold liquefaction through the nitric acid solution after the condensing plate with the vaporization, adhere to on the condensing plate for the nitric acid liquid accumulation at condensing plate top flows downwards from the left side breach.
In realizing the utility model discloses the in-process, the inventor finds that there is following problem at least in this technique, because the cold plate of installing at the refrigeration plant end can make the inside temperature reduction of gas collecting pipe, the nitric acid solution after the vaporization enters into to the inside back of gas collecting pipe, easily the condition of liquefaction appears in the inner wall of gas collecting pipe (being close to cold plate department), and the nitric acid after the liquefaction flows to the bottom of gas collecting pipe along the inner wall of gas collecting pipe, has reduced the collection efficiency of purification collecting box to the nitric acid. Therefore, a high-purity low-chromium pure nitric acid purification device is proposed.
SUMMERY OF THE UTILITY MODEL
In order to improve because the condensing plate of installing at the refrigeration plant end can make the inside temperature reduction of gas collecting pipe, the nitric acid solution after the vaporization enters into to the inside back of gas collecting pipe, easily the condition of liquefaction appears in the inner wall of gas collecting pipe (being close to condensing plate department), and the nitric acid after the liquefaction flows to the bottom of gas collecting pipe along the inner wall of gas collecting pipe, has reduced the problem of purification collecting box to the collection efficiency of nitric acid, the utility model provides a pure nitric acid purification equipment of low chromium of high purity.
The utility model provides a high-purity low-chromium pure nitric acid purification equipment, which adopts the following technical scheme:
the high-purity low-chromium pure nitric acid purification equipment comprises a base and a reaction tank fixedly mounted on the base, wherein a feeding pipe is fixedly mounted on one side of the top of the reaction tank, a motor is fixedly mounted at the top of the reaction tank, a rotating shaft is fixedly mounted at the output end of the motor and is positioned inside the reaction tank, the top end of the rotating shaft is rotatably connected with the reaction tank, a plurality of stirring rods are fixedly connected to the outer surface of the rotating shaft, and a heating coil is mounted inside the reaction tank;
the last fixed surface of base installs the mounting bracket, the last fixed surface of mounting bracket installs the condensing box, fixed mounting has communicating pipe between the top of retort and condensing box, the top fixed mounting of condensing box has the refrigeration pipe that a plurality of set up side by side, the refrigeration end of refrigeration pipe is located the inside of condensing box.
Through adopting above-mentioned technical scheme, add through the inlet pipe to the inside of retort and wait to purify nitric acid solution and metal ion stabilizer, the rotation of motor output drives the pivot and rotates, thereby make the puddler stir the inside mixed solution of retort, promote abundant reaction, and simultaneously, the heat that heating coil produced heats the inside mixed solution of retort, according to the difference of each component boiling point in the solution, make the nitric acid liquid after the vaporization pass through communicating pipe and get into the inside to the condensing box, it meets cold liquefaction to get into the inside vaporization nitric acid liquid of condensing box, adhere to the surface at the refrigeration tube, under the effect of gravity, flow to the bottom of condensing box, obtain lower chromium pure nitric acid of higher purity, the purification collection efficiency to nitric acid has been improved.
Optionally, the outer surface of the reaction tank is provided with a tank body heat-insulating sleeve.
Through adopting above-mentioned technical scheme, the setting of jar body insulation cover has reduced the loss of inside heat of retort to the external world.
Optionally, a plurality of heat conducting rods are fixedly mounted on the inner wall of the reaction tank, and the heat conducting rods and the stirring rods are arranged in a staggered mode.
Through adopting above-mentioned technical scheme, the heat transfer that can produce the heating coil to the inside of solution is led to in the setting of heat conduction pole for solution is heated evenly, has improved the speed of distillation purification.
Optionally, the communicating pipe is arranged in an obliquely upward structure.
Through adopting above-mentioned technical scheme, the setting of this kind of structure, when the puddler stirs the inside solution of retort, the solution of difficult motion enters into the inside of condensing box through communicating pipe.
Optionally, a heat preservation pipe sleeve is mounted on the outer surface of the communication pipe.
Through adopting above-mentioned technical scheme, the setting of heat preservation pipe box has improved the heat preservation effect to communicating pipe, and the condition of condensation appears in the steam that is difficult for making communicating pipe inside receives the influence of outside low temperature environment.
Optionally, a vibration motor is installed on one side of the bottom of the condensation box.
Through adopting above-mentioned technical scheme, vibrating motor's setting has accelerated the falling speed of refrigeration pipe surface liquefaction nitric acid liquid.
Optionally, a transparent observation window is installed on the front surface of the condensation box.
Through adopting above-mentioned technical scheme, the setting of transparent observation window is conveniently observed the nitric acid liquid's of the inside purification collection of condensing box volume.
Optionally, a discharge pipe is fixedly mounted at the bottom of the condensation tank, and a control valve is mounted on the discharge pipe.
Through adopting above-mentioned technical scheme, through opening the control valve, can discharge the inside nitric acid liquid of condensing tank through the discharge pipe.
To sum up, the utility model discloses following beneficial effect has:
the utility model discloses make the nitric acid liquid after the vaporization enter into the inside to the condensing box through communicating pipe, vaporization nitric acid liquid meets cold liquefaction and directly falls in the inside of condensing box, realizes the collection to distillation purification back nitric acid, has improved the purification collection efficiency to the nitric acid.
Drawings
Fig. 1 is a schematic view of the main-view section structure of the present invention.
Fig. 2 is a schematic view of the three-dimensional structure of the condensation box of the present invention.
Fig. 3 is a schematic view of the structure of the present invention.
Description of the reference numerals:
1. a base; 2. a reaction tank; 3. a feeding pipe; 4. a motor; 5. a rotating shaft; 6. a stirring rod; 7. a heating coil; 8. a mounting frame; 9. a condenser tank; 10. a communicating pipe; 11. a refrigeration pipe; 12. a tank body heat insulation sleeve; 13. a heat conducting rod; 14. a heat preservation pipe sleeve; 15. a vibration motor; 16. a transparent viewing window; 17. a discharge pipe; 18. and (4) controlling the valve.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
Referring to fig. 1-3, a high-purity low-chromium pure nitric acid purifying apparatus includes a base 1 and a reaction tank 2 fixedly mounted on the base 1, a feeding pipe 3 is fixedly mounted on one side of the top of the reaction tank 2, a nitric acid solution to be purified and a metal ion stabilizer (one of tartaric acid, citric acid, ethylene diamine tetraacetic acid or N-hydroxyethyl ethylene diamine triacetic acid) can be added into the reaction tank 2 through the feeding pipe 3, and the metal ion stabilizer facilitates one-time distillation to obtain the required low-chromium (less than or equal to 0.02 ppm) high-purity nitric acid, which can be referred to patent document CN112028039a.
Referring to fig. 1-3, a motor 4 is fixedly mounted at the top of the reaction tank 2, a rotating shaft 5 is fixedly mounted at the output end of the motor 4, the rotating shaft 5 is located inside the reaction tank 2, the top end of the rotating shaft 5 is rotatably connected with the reaction tank 2, and a plurality of stirring rods 6 are fixedly connected to the outer surface of the rotating shaft 5. The rotation of 4 output ends of motor drives pivot 5 and rotates to make puddler 6 stir the inside mixed solution of retort 2, promote abundant reaction. Meanwhile, a heating coil 7 is installed inside the reaction tank 2, the mixed solution inside the reaction tank 2 is heated by heat generated by the heating coil 7, and the nitric acid in the nitric acid solution is distilled and purified according to different boiling points of components in the solution. The outer surface of the reaction tank 2 is provided with a tank body heat insulation sleeve 12, the tank body heat insulation sleeve 12 is a glass wool heat insulation sleeve or a rock wool heat insulation sleeve, and the tank body heat insulation sleeve 12 is arranged, so that the loss of heat inside the reaction tank 2 to the outside is reduced.
Referring to fig. 1, inner wall fixed mounting of retort 2 has a plurality of heat conduction pole 13, and heat conduction pole 13 sets up with puddler 6 is crisscross, and heat conduction pole 13 is the stainless steel pole, and the inside of heat transfer to solution that heating coil 7 produced can be with the setting of heat conduction pole 13 for solution is heated evenly, has improved the speed of distillation purification.
Referring to fig. 1 and 3, a mounting frame 8 is fixedly mounted on the upper surface of the base 1, a condenser box 9 is fixedly mounted on the upper surface of the mounting frame 8, a communicating pipe 10 is fixedly mounted between the top of the reaction tank 2 and the top of the condenser box 9, and the vaporized nitric acid liquid enters the inside of the condenser box 9 through the communicating pipe 10. The communication pipe 10 is provided in an obliquely upward configuration. With such a configuration, when the stirring rod 6 stirs the solution in the reaction tank 2, the solution splashed by the stirring is less likely to enter the condenser 9 through the communicating pipe 10.
Wherein, there is heat preservation pipe box 14 at the surface mounting of communicating pipe 10, and heat preservation pipe box 14 is the cotton insulation support of glass or rock wool insulation support, and the setting of heat preservation pipe box 14 has improved the heat preservation effect to communicating pipe 10, and the condition of condensation appears in the steam that is difficult for making communicating pipe 10 inside receives the influence of outside low temperature environment.
Referring to fig. 1-3, a plurality of refrigeration tubes 11 arranged side by side are fixedly installed at the top of the condensation box 9, the type of the refrigeration tubes 11 is VT-3009, and the refrigeration ends of the refrigeration tubes 11 are located inside the condensation box 9. The vaporized nitric acid liquid entering the interior of the condensing box 9 is liquefied when meeting cold, attached to the surface of the refrigerating pipe 11 and flows to the bottom of the condensing box 9 under the action of gravity, and the low-chromium pure nitric acid with higher purity is obtained. Vibration motor 15 is installed to one side of condensing box 9 bottom, and the setting of vibration motor 15 has accelerated the falling speed of the cooling tube 11 surface liquefaction nitric acid liquid.
In addition, install transparent observation window 16 at the front of condenser box 9, transparent observation window 16's setting is convenient to observe the nitric acid liquid's of purifying the collection in condenser box 9 volume. A discharge pipe 17 is fixedly arranged at the bottom of the condensation box 9, the discharge pipe 17 penetrates through the top of the mounting frame 8, a control valve 18 is arranged on the discharge pipe 17, and the nitric acid liquid in the condensation box 9 can be discharged through the discharge pipe 17 by opening the control valve 18.
The utility model discloses an implement the principle and do: add through inlet pipe 3 to retort 2's inside and wait to purify nitric acid solution and metal ion stabilizer, the rotation of 4 outputs of motor drives pivot 5 and rotates, thereby make puddler 6 stir 2 inside mixed solution of retort, promote abundant reaction, and simultaneously, the heat that heating coil 7 produced heats 2 inside mixed solution of retort, according to the difference of each component boiling point in the solution, make the nitric acid liquid after the vaporization pass through communicating pipe 10 and get into to the inside of condensing box 9, it meets the cold liquefaction to get into to the inside vaporization nitric acid liquid of condensing box 9, adhere to the surface at cooling tube 11, under the effect of gravity, flow to the bottom of condensing box 9, obtain the low chromium pure nitric acid of higher purity, the purification collection efficiency to nitric acid has been improved.
Above is the preferred embodiment of the utility model, not limit according to this the utility model discloses a protection scope, the event: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. High-purity low-chromium pure nitric acid purification equipment comprises a base (1) and a reaction tank (2) fixedly mounted on the base (1), and is characterized in that: the automatic feeding device is characterized in that an inlet pipe (3) is fixedly mounted on one side of the top of the reaction tank (2), a motor (4) is fixedly mounted on the top of the reaction tank (2), a rotating shaft (5) is fixedly mounted at the output end of the motor (4), the rotating shaft (5) is located inside the reaction tank (2), the top end of the rotating shaft (5) is rotatably connected with the reaction tank (2), a plurality of stirring rods (6) are fixedly connected to the outer surface of the rotating shaft (5), and a heating coil (7) is mounted inside the reaction tank (2);
last fixed surface of base (1) installs mounting bracket (8), the last fixed surface of mounting bracket (8) installs condenser box (9), fixed mounting has communicating pipe (10) between the top of retort (2) and condenser box (9), the top fixed mounting of condenser box (9) has refrigeration pipe (11) that a plurality of set up side by side, the refrigeration end of refrigeration pipe (11) is located the inside of condenser box (9).
2. The apparatus for purifying high purity low chromium pure nitric acid according to claim 1, wherein: the outer surface of the reaction tank (2) is provided with a tank body heat-insulating sleeve (12).
3. The apparatus for purifying high purity low chromium pure nitric acid according to claim 1, wherein: a plurality of heat conducting rods (13) are fixedly mounted on the inner wall of the reaction tank (2), and the heat conducting rods (13) and the stirring rods (6) are arranged in a staggered mode.
4. The apparatus for purifying high purity low chromium pure nitric acid according to claim 1, wherein: the communicating pipe (10) is arranged in an obliquely upward structure.
5. The apparatus for purifying high purity low chromium pure nitric acid according to claim 4, wherein: and a heat preservation pipe sleeve (14) is arranged on the outer surface of the communication pipe (10).
6. The apparatus for purifying high purity low chromium pure nitric acid according to claim 1, wherein: and a vibration motor (15) is arranged on one side of the bottom of the condensation box (9).
7. The apparatus for purifying high-purity low-chromium pure nitric acid according to claim 1, wherein: and a transparent observation window (16) is arranged on the front surface of the condensation box (9).
8. The apparatus for purifying high-purity low-chromium pure nitric acid according to claim 1, wherein: the bottom of the condensation box (9) is fixedly provided with a discharge pipe (17), and the discharge pipe (17) is provided with a control valve (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223548735.7U CN218793930U (en) | 2022-12-28 | 2022-12-28 | High-purity low-chromium pure nitric acid purification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223548735.7U CN218793930U (en) | 2022-12-28 | 2022-12-28 | High-purity low-chromium pure nitric acid purification equipment |
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| Publication Number | Publication Date |
|---|---|
| CN218793930U true CN218793930U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223548735.7U Active CN218793930U (en) | 2022-12-28 | 2022-12-28 | High-purity low-chromium pure nitric acid purification equipment |
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| CN (1) | CN218793930U (en) |
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