CN218687169U - System for purify centrifugal mother liquor of sodium nitrate - Google Patents
System for purify centrifugal mother liquor of sodium nitrate Download PDFInfo
- Publication number
- CN218687169U CN218687169U CN202122757391.XU CN202122757391U CN218687169U CN 218687169 U CN218687169 U CN 218687169U CN 202122757391 U CN202122757391 U CN 202122757391U CN 218687169 U CN218687169 U CN 218687169U
- Authority
- CN
- China
- Prior art keywords
- mother liquor
- outlet pipe
- tank
- liquid outlet
- candle filter
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Extraction Or Liquid Replacement (AREA)
Abstract
The utility model discloses a system for purifying sodium nitrate centrifugal mother liquor, which comprises a mother liquor settling tank, a mother liquor delivery pump, a stirring tank, a circulating pump, a candle filter, a mixing tank and a mixed liquor delivery pump, wherein the lower part of the mother liquor settling tank is provided with a first liquid outlet pipe, and the periphery of the mother liquor settling tank is surrounded by a steam pipeline; a mother liquor delivery pump is arranged on the first liquid outlet pipe, and two branch pipelines with valves are arranged at the tail end of the first liquid outlet pipe and are respectively connected with the stirring tank and a liquid inlet of the candle filter; a second liquid outlet pipe is arranged at the lower part of the stirring tank, and a circulating pump is arranged on the second liquid outlet pipe; the tail end of the second liquid outlet pipe is also connected with a liquid inlet of the candle filter; and a third liquid outlet pipe with the tail end connected with the stirring tank and a fourth liquid outlet pipe with the tail end connected with the mixing tank are arranged on the candle filter. The utility model discloses can effectively filter mechanical type solid impurity such as ferric oxide in the centrifugal mother liquor of sodium nitrate, effectively solve impurity simultaneously and have viscosity, handle unclean problem, the filter effect is splendid.
Description
Technical Field
The utility model relates to a mother liquor purification treatment system technical field, more specifically say, relate to a system for purify centrifugal mother liquor of sodium nitrate.
Background
The sodium nitrate centrifugal mother liquor contains mechanical solid impurities such as ferric oxide, saturated nitrate and the like, the content of the impurities is about 0.5%, the average grain diameter is about 5 mu m, and ferric oxide particles contained in the impurities have certain viscosity and are difficult to filter. Under normal conditions, mixing the sodium nitrate centrifugal mother liquor with the concentrated solution, and then entering an evaporator to obtain a sodium nitrate finished product. However, the centrifugal mother liquor of sodium nitrate contains impurities, which can affect the whiteness of the finished product of sodium nitrate, so that the quality of the product is poor, and certain economic loss is caused.
Therefore, under the current situation, it is necessary to provide a system capable of purifying the sodium nitrate centrifugal mother liquor.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses a mechanical type solid impurity such as ferric oxide in the filtration sodium nitrate centrifugation mother liquor provides a system of purification sodium nitrate centrifugation mother liquor, and its specific technical scheme is as follows:
a system for purifying sodium nitrate centrifugal mother liquor comprises a mother liquor settling tank, a mother liquor delivery pump, a stirring tank, a circulating pump, a candle filter, a mixing tank and a mixed liquor delivery pump, wherein a liquid inlet pipe is arranged at the upper part of the mother liquor settling tank, a first liquid outlet pipe is arranged at the lower part of the mother liquor settling tank, a steam pipeline is arranged around the periphery of the mother liquor settling tank, hot steam flows into an inlet of the steam pipeline, and steam condensate is discharged from an outlet of the steam pipeline; the mother liquor delivery pump is arranged on the first liquid outlet pipe, two branch pipelines with valves are arranged at one end of the first liquid outlet pipe, which is far away from the mother liquor sedimentation tank, one of the branch pipelines is connected with the stirring tank, and the other branch pipeline is connected with the liquid inlet of the candle filter; a stirrer is arranged in the stirring tank, the rotation of the stirrer is controlled by a stirring motor arranged at the top of the stirring tank, and the top of the stirring tank is also provided with a diatomite feeding port; a second liquid outlet pipe is arranged at the lower part of the stirring tank, and the circulating pump is arranged on the second liquid outlet pipe; one end of the second liquid outlet pipe, which is far away from the stirring tank, is also connected with a liquid inlet of the candle filter, and a filtering device consisting of filter cloth is arranged inside the candle filter; a third liquid outlet pipe and a fourth liquid outlet pipe with valves are arranged on the candle filter, one end of the third liquid outlet pipe, which is far away from the candle filter, is connected with the stirring tank, and one end of the fourth liquid outlet pipe, which is far away from the candle filter, is connected with the mixing tank; the upper portion of mixing tank is equipped with the concentrate inlet, and the lower part is equipped with mixed liquid drain pipe, be equipped with on the mixed liquid drain pipe mixed liquid delivery pump.
Compared with the prior art, through adopting above-mentioned technical scheme, the utility model discloses can effectively filter mechanical type solid impurity (5 mu m) such as ferric oxide in the centrifugal mother liquor of sodium nitrate, effectively solve impurity simultaneously and have viscosity, handle unclean problem, the filter effect is splendid, and the practicality is comparatively extensive, has improved the whiteness degree and the quality of sodium nitrate product.
Preferably, liquid level detection devices are arranged in the mother liquor settling tank and the stirring tank. The liquid level detection device is used for monitoring the liquid levels in the mother liquor settling tank and the stirring tank at any time, and when the liquid level is too high (more than 80 percent of the total volume), the injection of the mother liquor needs to be controlled and stopped in time to prevent overflow; when the liquid level is too low (less than 10% of the total volume), in order to prevent the equipment from idling, the mother liquid is controlled to stop discharging in time, and then new mother liquid is injected from the liquid inlet.
Preferably, the liquid level detection device is electrically connected with a liquid level display device positioned outside the corresponding tank body, and the liquid level display device is electrically connected with the alarm device.
Preferably, the inlet of the candle filter is provided with a pressure gauge, and whether a filter cake is formed and whether filter residue in the candle filter needs to be cleaned can be determined by measuring the pressure at the inlet of the candle filter.
Preferably, the air inlet pipeline corresponding to the inlet of the steam pipeline and the condensate pipeline corresponding to the outlet of the steam pipeline are both provided with valves, so that the temperature of steam in the steam pipeline can be conveniently regulated and controlled.
Preferably, the mass ratio of the diatomite to the sodium nitrate centrifugal mother liquor in the stirring tank is 1.
Preferably, the sodium nitrate centrifugal mother liquor containing diatomite mixed in the stirring tank circulates back and forth between the candle filter and the stirring tank, and a diatomite filter cake layer is formed on the filter cloth in the candle filter.
Preferably, the thickness of the diatomite filter cake layer formed must be 1-2 μm.
Preferably, the bottom of candle filter is equipped with the waste residue bin outlet of taking the valve, the waste residue bin outlet is connected the effluent water sump.
Preferably, a back washing device is arranged on the candle filter and used for washing filter residues intercepted in the candle filter to a waste residue discharge port.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a system for purifying centrifugal mother liquor of sodium nitrate.
In the figure: 1-mother liquor settling tank, 2-mother liquor delivery pump, 3-stirring tank, 4-circulating pump, 5-candle filter, 6-mixing tank, 7-mixed liquor delivery pump, 8-liquid inlet pipe, 9-first liquid outlet pipe, 10-steam pipeline inlet, 11-steam pipeline outlet, 12-diatomite charging port, 13-second liquid outlet pipe, 14-filtering device, 15-third liquid outlet pipe, 16-fourth liquid outlet pipe, 17-concentrated liquor charging port, 18-mixed liquor liquid outlet pipe, 19-liquid level detection device and 20-waste residue discharge port.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b):
as shown in fig. 1, the utility model relates to a system for purify centrifugal mother liquor of sodium nitrate, including mother liquor settling tank 1, mother liquor delivery pump 2, stirred tank 3, circulating pump 4, candle filter 5, mixing tank 6, mixed liquid delivery pump 7.
In particular, the method comprises the following steps of,
the upper portion of mother liquor subsider 1 is equipped with the feed liquor pipe 8 that is used for flowing into the centrifugal mother liquor of sodium nitrate, and the lower part is equipped with the first drain pipe 9 that is used for discharging the centrifugal mother liquor of sodium nitrate, and the periphery is surrounded and is provided with the steam pipe way, and steam pipe way import 10 flows in hot steam, and steam pipe way export 11 discharges the steam condensate.
Meanwhile, valves are arranged on the air inlet pipeline corresponding to the steam pipeline inlet 10 and the liquid condensation pipeline corresponding to the steam pipeline outlet 11.
Be equipped with mother liquor delivery pump 2 on the first drain pipe 9, two branch pipelines of taking the valve have been seted up to the one end that mother liquor subsider 1 was kept away from to first drain pipe 9, and agitator tank 3 is connected to one of them branch pipeline, and the inlet of candle filter 5 is connected to the other one branch pipeline.
A stirrer is arranged in the stirring tank 3, the stirrer is controlled to rotate by a stirring motor arranged at the top of the stirring tank 3, and a diatomite feeding port 12 is also arranged at the top of the stirring tank 3.
Liquid level detection devices 19 are arranged in the mother liquor settling tank 1 and the stirring tank 3, the liquid level detection devices 19 are electrically connected with liquid level display devices located outside the corresponding tank bodies, and the liquid level display devices are electrically connected with an alarm device.
A second liquid outlet pipe 13 is arranged at the lower part of the stirring tank 3, and a circulating pump 4 is arranged on the second liquid outlet pipe 13; the one end that agitator tank 3 was kept away from to second drain pipe 13 also connects the inlet of candle filter 5, and the inlet department of candle filter 5 is equipped with the manometer.
The candle filter 5 is provided internally with a filter device 14 consisting of filter cloth. Be equipped with third drain pipe 15 and fourth drain pipe 16 that have the valve on candle filter 5, the one end that candle filter 5 was kept away from to third drain pipe 15 is connected with agitator tank 3, and the one end that candle filter 5 was kept away from to fourth drain pipe 16 is connected with mixing tank 6.
Further, the bottom of the candle filter 5 is provided with a waste residue discharge opening 20 with a valve, and the waste residue discharge opening 20 is connected with a sewage pool. Meanwhile, a back washing device is arranged on the candle filter 5.
The upper part of the mixing tank 6 is provided with a concentrated solution inlet 17, the lower part is provided with a mixed solution outlet pipe 18, and the mixed solution outlet pipe 18 is provided with a mixed solution delivery pump 7.
The utility model discloses a concrete working process does:
firstly, feeding the sodium nitrate centrifugal mother liquor into a mother liquor settling tank 1 for settling, wherein the settling time is 20-30 min, and simultaneously, the mother liquor settling tank 1 is provided with a steam heat tracing pipe (a steam pipeline) to keep the temperature at 70-80 ℃; conveying the sodium nitrate centrifugal mother liquor into a stirring tank 3 through a mother liquor conveying pump 2, stopping conveying when the amount of the sodium nitrate centrifugal mother liquor reaches 80% of that in the stirring tank 3, adding diatomite (the diatomite is the sodium nitrate centrifugal mother liquor =1: 100) into the stirring tank 3, uniformly stirring, starting a circulating pump 4 to circulate the sodium nitrate centrifugal mother liquor containing the diatomite back and forth in a candle filter 5 and the stirring tank 3, and stopping circulation when the inlet pressure of the candle filter 5 reaches 0.2-0.3 MPa; and then starting a mother liquor conveying pump 2 to convey the sodium nitrate centrifugal mother liquor to a candle filter 5 for filtration, feeding the filtered sodium nitrate centrifugal mother liquor into a mixing tank 6 to be mixed with the concentrated solution, and then conveying the sodium nitrate centrifugal mother liquor to the next procedure for evaporation and crystallization through a mixed liquor conveying pump 7. When the inlet pressure of the candle filter 5 reaches 0.4MPa, the filtration is stopped, the back washing device is started to wash the filter residue, and the filter residue is discharged into the sewage tank from the waste residue discharge port 20 at the lower part of the candle filter 5.
The utility model discloses in, the centrifugal mother liquor of sodium nitrate keeps 70-80 ℃ when subsiding in mother liquor subsider 1, is in order to make supersaturated centrifugal mother liquor of sodium nitrate further dissolve, loss when reducing the filtration.
The utility model discloses to contain the sodium nitrate centrifugation mother liquor of diatomaceous earth makes a round trip to circulate in candle filter 5 and stirred tank 3, is in order to let diatomaceous earth form 1-2 mu m's diatomaceous earth filter cake layer in candle filter 5 on filter equipment 14's the filter cloth, makes impurity can be effectively filtered.
The utility model discloses utilize candle filter 5 to filter sodium nitrate centrifugation mother liquor, get into the evaporimeter after sodium nitrate centrifugation mother liquor after filtering mixes with the concentrate, can not influence normal production flow like this yet.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The system for purifying the centrifugal mother liquor of the sodium nitrate is characterized by comprising a mother liquor settling tank (1), a mother liquor conveying pump (2), a stirring tank (3), a circulating pump (4), a candle filter (5), a mixing tank (6) and a mixed liquor conveying pump (7), wherein a liquid inlet pipe (8) is arranged at the upper part of the mother liquor settling tank (1), a first liquid outlet pipe (9) is arranged at the lower part of the mother liquor settling tank, a steam pipeline is arranged around the periphery of the mother liquor settling tank, hot steam flows into a steam pipeline inlet (10), and steam condensate is discharged from a steam pipeline outlet (11); the mother liquor delivery pump (2) is arranged on the first liquid outlet pipe (9), two branch pipelines with valves are arranged at one end of the first liquid outlet pipe (9) far away from the mother liquor settling tank (1), one branch pipeline is connected with the stirring tank (3), and the other branch pipeline is connected with the liquid inlet of the candle filter (5); a stirrer is arranged in the stirring tank (3), the stirrer is controlled to rotate by a stirring motor arranged at the top of the stirring tank (3), and a diatomite feeding port (12) is further arranged at the top of the stirring tank (3); a second liquid outlet pipe (13) is arranged at the lower part of the stirring tank (3), and the circulating pump (4) is arranged on the second liquid outlet pipe (13); one end of the second liquid outlet pipe (13) far away from the stirring tank (3) is also connected with a liquid inlet of the candle filter (5), and a filtering device (14) consisting of filter cloth is arranged inside the candle filter (5); a third liquid outlet pipe (15) and a fourth liquid outlet pipe (16) with valves are arranged on the candle filter (5), one end, far away from the candle filter (5), of the third liquid outlet pipe (15) is connected with the stirring tank (3), and one end, far away from the candle filter (5), of the fourth liquid outlet pipe (16) is connected with the mixing tank (6); the upper portion of mixing tank (6) is equipped with concentrate inlet (17), and the lower part is equipped with mixed liquid drain pipe (18), be equipped with on mixed liquid drain pipe (18) mixed liquid delivery pump (7).
2. The system for purifying sodium nitrate centrifugal mother liquor as claimed in claim 1, wherein liquid level detection devices (19) are arranged in the mother liquor settling tank (1) and the stirring tank (3).
3. The system for purifying sodium nitrate centrifugal mother liquor as claimed in claim 2, wherein the liquid level detection device (19) is electrically connected with a liquid level display device positioned outside the corresponding tank body, and the liquid level display device is electrically connected with an alarm device.
4. The system for purifying sodium nitrate centrifugal mother liquor as claimed in claim 1, wherein a pressure gauge is arranged at an inlet of the candle filter (5).
5. The system for purifying sodium nitrate centrifugal mother liquor as claimed in claim 1, wherein valves are arranged on the gas inlet pipeline corresponding to the steam pipeline inlet (10) and the liquid condensate pipeline corresponding to the steam pipeline outlet (11).
6. The system for purifying sodium nitrate centrifugal mother liquor as claimed in claim 1, wherein the bottom of the candle filter (5) is provided with a waste residue discharge opening (20) with a valve, and the waste residue discharge opening (20) is connected with a sewage tank.
7. The system for purifying sodium nitrate centrifugal mother liquor as claimed in claim 6, wherein a back washing device is arranged on the candle filter (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122757391.XU CN218687169U (en) | 2021-11-11 | 2021-11-11 | System for purify centrifugal mother liquor of sodium nitrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122757391.XU CN218687169U (en) | 2021-11-11 | 2021-11-11 | System for purify centrifugal mother liquor of sodium nitrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218687169U true CN218687169U (en) | 2023-03-24 |
Family
ID=85581592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122757391.XU Active CN218687169U (en) | 2021-11-11 | 2021-11-11 | System for purify centrifugal mother liquor of sodium nitrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218687169U (en) |
-
2021
- 2021-11-11 CN CN202122757391.XU patent/CN218687169U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101426723B (en) | Method and apparatus for treating silicon particle | |
| CN102755765B (en) | Deep-purification impurity-removing treatment device of tobacco extraction liquid and impurity removing control method thereof | |
| CN208517114U (en) | A kind of chemical engineering sewage cleaning equipment | |
| CN218687169U (en) | System for purify centrifugal mother liquor of sodium nitrate | |
| CN208603894U (en) | A kind of infant industry sewage treatment chemicals dosing plant | |
| CN204384990U (en) | A kind of recirculated cooling water lime soften for sewage clarification filtration treatment system | |
| CN208166735U (en) | DMF waste water reclaiming device in a kind of production of synthetic leather | |
| CN210583908U (en) | A filter equipment for producing barium chloride | |
| CN212975147U (en) | Equipment for producing sodium benzoate food additive | |
| CN209940676U (en) | Water purification device for environmental protection | |
| CN211620172U (en) | High-density air flotation sedimentation tank | |
| CN106673269A (en) | Nickel-containing wastewater treatment system | |
| CN202415396U (en) | Device for preparing brine solution of oxidant through zero emission | |
| CN208166750U (en) | A kind of dosing system improving water factory's water outlet pH value | |
| CN220665022U (en) | Sewage tempering and desliming system | |
| US4062695A (en) | Method and apparatus for treating sugar-works molasses | |
| CN218146132U (en) | High concentration acid-base salt-containing wastewater pre-desalting device | |
| CN108558062A (en) | Wool poaching wastewater treatment for reuse system | |
| CN206109011U (en) | A flocculation reactor for sewage treatment | |
| CN215288343U (en) | Device for recovering terephthalic acid from alkali decrement wastewater | |
| CN220802681U (en) | Skid-mounted full-automatic film chemical cleaning device | |
| CN208378604U (en) | Waste water treatment system applied to automobile production manufacture | |
| CN110606595A (en) | Filtering equipment and filtering process thereof | |
| CN210711039U (en) | High-efficient water purification unit | |
| CN219907288U (en) | Municipal administration water supply and drainage multistage sewage treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |