CN208617424U - A kind of light salt brine denitration recyclable device - Google Patents
A kind of light salt brine denitration recyclable device Download PDFInfo
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- CN208617424U CN208617424U CN201821085655.3U CN201821085655U CN208617424U CN 208617424 U CN208617424 U CN 208617424U CN 201821085655 U CN201821085655 U CN 201821085655U CN 208617424 U CN208617424 U CN 208617424U
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- screw conveyor
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Abstract
The utility model discloses a kind of light salt brine denitration recyclable device, including denitration recovery approach and denitration recovery control system, and denitration recovery approach includes sequentially connected centrifuge, the first transfer passage and the second transfer passage；Denitration recovery system includes sequentially connected fluid level measuring gauge, field control unit, fluid level measuring gauge is set in the first transfer passage, field control unit receives the liquid level signal of fluid level measuring gauge transmission, obtains control instruction, controls the opening and closing of the first transfer passage and the second transfer passage.The utility model has reached the automated production of denitration recycling, has improved production efficiency by setting second level denitration transfer passage and multistage denitration control unit.
Description
Technical field
The utility model relates to ion film caustic soda preparation field, in particular to a kind of light salt brine denitration recyclable device.
Background technique
In ion-exchange membrane caustic soda preparation process, a certain amount of sulfuric acid is usually contained from the light salt brine that electrolytic cell comes out
Sodium, but as the sodium sulphate content in electrolysis cycle salt water can be stepped up, and then influence the normal production of electrolysis with ion-exchange film.Cause
This needs to remove in the sodium sulphate in light salt brine, makes to maintain in a certain constant level into the sodium sulphate content in salt water of electrolytic bath
, guarantee production safety and efficiently.
Light salt brine enrichment process utilizes fractional crystallization principle, i.e. the solubility with temperature variation of sodium chloride and sodium sulphate and becomes
The rule of change uses " cold ", " heat " crystallizer condensing crystallizing, isolates the sodium sulphate in salt water, make the sulfuric acid in brine system
It is horizontal that sodium maintains normal production technology.
And in the recycling of sodium sulphate, machinery belt conveying device or other machinery used in the prior art are defeated
Device is sent, the demand of automated production is unable to reach, and is unreasonable due to transport path during transportation, is caused very
More materials are trickled down during transportation, i.e. pollution environment, and reduce production efficiency.
Utility model content
In view of this, the present invention provides a kind of light salt brine denitration recyclable device, including denitration recovery approach and de-
Nitre recovery control system has reached denitration recycling by setting second level denitration transfer passage and multistage denitration control unit
Automated production improves production efficiency.
In order to solve the above technical problems, the technical solution of the utility model is to use a kind of light salt brine denitration recyclable device,
It is characterised in that it includes denitration recovery approach and denitration recovery control system, the denitration recovery approach includes being sequentially connected
Centrifuge, the first transfer passage and the second transfer passage；The denitration recovery system includes sequentially connected level gauging
Meter, field control unit, the fluid level measuring gauge are set in the first transfer passage, and the field control unit receives liquid level and surveys
The liquid level signal of meter transmission, obtains control instruction, controls the opening and closing of the first transfer passage and the second transfer passage.
Preferably, first transfer passage includes sequentially connected first screw conveyor, the first conveyance conduit, second
Screw conveyor, the second conveyance conduit and the first storage nitre pond, the fluid level measuring gauge is set in the first storage nitre pond, and described the
Two transfer passages include sequentially connected third screw conveyor, third conveyance conduit, the 4th screw conveyor, the 4th delivery pipe
Road and the second storage nitre pond further include the grab-crane that the second storage nitre pond top is arranged in.
Preferably, first screw conveyor apart from ground level be 10m-13.5m, second screw conveyor away from
Height 7m-8.5m from the ground, the first storage nitre pond are 5m-5.5m apart from ground level, first conveyance conduit connection the
The input terminal of the output end of one screw conveyor and the second screw conveyor, second conveyance conduit connect the second helical feed
The input terminal of the output end of machine and the first storage nitre pond；The third screw conveyor apart from ground level be 3m-5m, the described 4th
Screw conveyor is 0m-0.5m apart from ground level apart from ground level 1m-2.5m, the second storage nitre pond, the grab bucket row
It is 0.5m-1.5m that vehicle distance second, which stores nitre pond height, the output end of third conveyance conduit connection third screw conveyor with
The input terminal of 4th screw conveyor, the 4th conveyance conduit connect the 4th screw conveyor output end and second and store nitre pond
Input terminal.
Preferably, the field control unit includes sequentially connected controller and station, the controller receiving liquid
The liquid level signal of position meter transmission, calculates and obtains control instruction, the 4th screw conveyor of control, third screw conveyor, the
The opening and closing of two screw conveyors and the first screw conveyor；The station receives the input signal of controller, obtains operation and refers to
It enables, operates the operation of controller.
Preferably, the control instruction of the controller is transferred to the 4th screw conveyor and third screw conveyor first,
The opening and closing of the 4th screw conveyor and third screw conveyor is controlled, the 4th screw conveyor is opened with third screw conveyor
It closes signal and feeds back to controller, controller controls opening for the second screw conveyor and the first screw conveyor based on the feedback signal
It closes.
Preferably, the denitration recovery control system further includes level-one control unit and Two-stage control unit, the level-one
The connection of the station of control unit and field control unit, the Two-stage control unit are connect with level-one control unit；Described one
Grade control unit is used to be used for denitration recovery approach distance detection, the Two-stage control unit in the progress of denitration recovery approach
Carry out remote monitor.
Preferably, the level-one control unit includes operator station and interchanger, and the operator station is connect with station,
The interchanger is connect with operator station.
Preferably, the Two-stage control unit includes remote supervisory station and DCS control system, the remote supervisory station and is handed over
It changes planes connection, the DCS control system is connect with remote supervisory station.
The utility model provides a kind of light salt brine denitration recyclable device, including denitration recovery approach and denitration recycling control
System processed, denitration recovery approach include sequentially connected centrifuge, the first transfer passage and the second transfer passage；First conveying
Channel include sequentially connected first screw conveyor, the first conveyance conduit, the second screw conveyor, the second conveyance conduit and
First storage nitre pond, fluid level measuring gauge are set in the first storage nitre pond；Second transfer passage includes sequentially connected third spiral transferring
Machine, third conveyance conduit, the 4th screw conveyor, the 4th conveyance conduit and the second storage nitre pond are sent, further includes being arranged second
Store the grab-crane on nitre pond top.By the setting of four sections of conveyance conduits of two-stage transfer passage, so that denitration is in the midway of recycling
Effective buffering has been obtained, for the one-part form recycling of the prior art, the unrestrained of material has been reduced, reduces unrestrained material pair
The pollution of environment.
Denitration recovery system includes sequentially connected fluid level measuring gauge, field control unit, and fluid level measuring gauge is set to
In one transfer passage, field control unit receives the liquid level signal of fluid level measuring gauge transmission, obtains control instruction, and control first is defeated
Send the opening and closing in channel Yu the second transfer passage.It additionally include one for middle distance and far distance control denitration recovery approach
Grade control unit and Two-stage control unit, level-one control unit are the control of workshop rank, and Two-stage control unit is the control of plant area's rank
System.The setting of multistage control unit can effectively reach the automated production of denitration recycling, and make scene, workshop and plant area
Administrative staff can participate in the monitoring of denitration recycling, substantially increase production efficiency, improve production security.
Detailed description of the invention
Fig. 1, the utility model flow chart；
Fig. 2, the utility model denitration recovery approach device figure.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, below with reference to specific implementation
The utility model is described in further detail for mode.
Ionic membrane method is produced in caustic soda, usually requires that sulfate radical content (SO in refined brine4 2-) it is less than 5g/L, if sulfate radical
Content is exceeded, can promote OH?Cathode electrode reaction and release more oxygen, increase oxygen content, risk increases
Add, purity reduces, while reducing current efficiency, aggravates the corrosion of electrode, shortens the service life of electrode；It can be with other substance shapes
It is impacted at service life of the triple salt to amberplex；Sulfate ion is higher, influences sodium chloride content in salt water, when
When sulfate radical content is excessively high, it will lead to a large amount of salt crystallizations in system, pipeline or the impeller of equipment caused to block.
Sulfuric acid root origin in chlor-alkali system: first is that contain in crude salt；Second is that sodium sulfite removal is added into light salt brine
Occur what redox reaction generated when free chlorine；Third is that contain in water distribution；It is introduced when fourth is that other refining agents are added.It is light
The recycling of salt water will lead to the accumulative rising of sulfate concentration.
Crystallisation by cooling method is to utilize SO4 2-With Na2SO4·10H2Crystallization is precipitated and removes O form in salt water under low temperature.
Technical process is that the salt water of containing sulfate radicals is cooled step by step to -10 DEG C~-8 DEG C generation crystal grain slurries, utilizes centrifuge
It realizes and is separated by solid-liquid separation, centrifuge mother liquor can also be used in salt dissolving, and saltcake packaging is sold.
And in the recycling of sodium sulphate, machinery belt conveying device or other machinery used in the prior art are defeated
Device is sent, the demand of automated production is unable to reach, and is unreasonable due to transport path during transportation, is caused very
More materials are trickled down during transportation, i.e. pollution environment, and reduce production efficiency.
The utility model provides a kind of light salt brine denitration recyclable device, including denitration recovery approach and denitration recycling control
System processed, denitration recovery approach include sequentially connected centrifuge, the first transfer passage and the second transfer passage；Pass through two-stage
The setting of four sections of conveyance conduits of transfer passage, so that denitration has obtained effective buffering in the midway of recycling, compared with the prior art
For one-part form recycling, the unrestrained of material is reduced, pollution of the unrestrained material to environment is reduced.
Denitration recovery system includes sequentially connected fluid level measuring gauge, field control unit, additionally include in being used for away from
From and far distance control denitration recovery approach level-one control unit and Two-stage control unit, level-one control unit be workshop level
It does not control, Two-stage control unit is the control of plant area's rank.The setting of multistage control unit can effectively reach oneself of denitration recycling
Dynamic metaplasia produces, and makes scene, workshop and plant area administrative staff that can participate in the monitoring of denitration recycling, substantially increases production
Efficiency improves production security.
Embodiment
Light salt brine denitration recyclable device provided in this embodiment, including denitration recovery approach and denitration recycling control system
System.Denitration recovery approach device is as shown in Fig. 2, include sequentially connected centrifuge 1, the first screw conveyor 2, the first delivery pipe
Road 3, the second screw conveyor 4, the second conveyance conduit 5, first storage nitre pond 6, third screw conveyor 8, third conveyance conduit 9,
4th screw conveyor 10, the 4th conveyance conduit 11, second store nitre pond 12, grab-crane 13；Grab-crane setting is in the second storage
Nitre pond top is additionally provided with fluid level measuring gauge 7 inside the first storage nitre pond, and fluid level measuring gauge and denitration recovery control system 14 connect
It connects.Wherein the first screw conveyor, the first conveyance conduit, the second screw conveyor, the second conveyance conduit and the first storage nitre pond
Belong to the first transfer passage.Third screw conveyor, third conveyance conduit, the 4th screw conveyor, the 4th conveyance conduit, second
Storage nitre pond and grab-crane belong to the second transfer passage.
First screw conveyor is 10m-13.5m apart from ground level, and the second screw conveyor is apart from ground level 7m-
8.5m, first storage nitre pond apart from ground level be 5m-5.5m, the first conveyance conduit connect the first screw conveyor output end with
The input terminal of second screw conveyor, the second conveyance conduit connect the output end of the second screw conveyor and first and store the defeated of nitre pond
Enter end；Third screw conveyor is 3m-5m apart from ground level, and the 4th screw conveyor is apart from ground level 1m-2.5m, second
It is 0m-0.5m that nitre pond, which is store, apart from ground level, and it is 0.5m-1.5m, third delivery pipe that grab-crane distance second, which stores nitre pond height,
Road connects the output end of third screw conveyor and the input terminal of the 4th screw conveyor, and the 4th conveyance conduit connects the 4th spiral
The input terminal of conveyer output end and the second storage nitre pond.
By the setting of two-stage transfer passage, so that denitration has obtained effective buffering, more existing skill in the midway of recycling
For the one-part form recycling of art, the unrestrained of material is reduced, pollution of the unrestrained material to environment is reduced.
Denitration recovery control system is as shown in Figure 1, include sequentially connected fluid level measuring gauge, field control unit, level-one
Control unit and Two-stage control unit.Level-one control unit is used for distance detection, Two-stage control in the progress of denitration recovery approach
Unit is used to carry out remote monitor to denitration recovery approach
Field control unit includes sequentially connected controller and station.Controller receives the liquid of fluid level measuring gauge transmission
Position signal, calculates and obtains control instruction, and when liquid level is higher than setting value, starting the 4th is exported with third screw conveyor, operation
A period of time restarts the input of the second and first screw conveyor when reaching setting value to liquid level；When liquid level is lower than setting value,
The then output of pause the 4th and third screw conveyor, starting second is inputted with the first screw conveyor, until liquid level reaches
The 4th and third screw conveyor are restarted when setting value again.That is the control instruction of controller is transferred to the 4th and third spiral first
Conveyer, control the 4th and the opening and closing of third screw conveyor, the 4th feeds back to control with the keying signal of third screw conveyor
Device processed, controller control the opening and closing of the second and first screw conveyor based on the feedback signal.Station receives the incoming of controller
Signal obtains operational order, operates the operation of controller.
Level-one control unit includes operator station and interchanger, and operator station is connect with station, interchanger and operator
It stands connection.Two-stage control unit includes remote supervisory station and DCS control system, and remote supervisory station is connect with interchanger, DCS control
System is connect with remote supervisory station.
Level-one control unit is the control of workshop rank, and Two-stage control unit is the control of plant area's rank.Multistage control unit
The automated production that denitration recycling can effectively be reached is set, and participate in scene, workshop and plant area administrative staff can
The monitoring of denitration recycling, substantially increases production efficiency, improves production security.
Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard
For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For
For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several
Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of light salt brine denitration recyclable device, which is characterized in that including denitration recovery approach and denitration recovery control system,
The denitration recovery approach includes sequentially connected centrifuge, the first transfer passage and the second transfer passage；The denitration is returned
Receipts system includes sequentially connected fluid level measuring gauge, field control unit, and the fluid level measuring gauge is set to the first transfer passage
In, the field control unit receives the liquid level signal of fluid level measuring gauge transmission, obtains control instruction, controls the first transfer passage
With the opening and closing of the second transfer passage.
2. light salt brine denitration recyclable device according to claim 1, which is characterized in that first transfer passage include according to
The first screw conveyor, the first conveyance conduit, the second screw conveyor, the second conveyance conduit and the first storage nitre of secondary connection
Pond, the fluid level measuring gauge are set in the first storage nitre pond, and second transfer passage includes sequentially connected third spiral transferring
Machine, third conveyance conduit, the 4th screw conveyor, the 4th conveyance conduit and the second storage nitre pond are sent, further includes being arranged second
Store the grab-crane on nitre pond top.
3. light salt brine denitration recyclable device according to claim 2, which is characterized in that the first screw conveyor distance
Ground level is 10m-13.5m, and second screw conveyor is apart from ground level 7m-8.5m, the first storage nitre pond distance
Ground level is 5m-5.5m, and first conveyance conduit connects the output end and the second screw conveyor of the first screw conveyor
Input terminal, second conveyance conduit connects the input terminal that the output end of the second screw conveyor stores nitre pond with first；It is described
Third screw conveyor is 3m-5m apart from ground level, and the 4th screw conveyor is described apart from ground level 1m-2.5m
Second storage nitre pond is 0m-0.5m apart from ground level, and it is 0.5m-1.5m, institute that the grab-crane distance second, which stores nitre pond height,
State the output end of third conveyance conduit connection third screw conveyor and the input terminal of the 4th screw conveyor, the 4th conveying
Pipeline connects the input terminal of the 4th screw conveyor output end and the second storage nitre pond.
4. light salt brine denitration recyclable device according to claim 3, which is characterized in that the field control unit include according to
The controller and station of secondary connection, the controller receive the liquid level signal of fluid level measuring gauge transmission, calculate acquisition control and refer to
It enables, controls the opening and closing of the 4th screw conveyor, third screw conveyor, the second screw conveyor and the first screw conveyor；Institute
The input signal that station receives controller is stated, operational order is obtained, operates the operation of controller.
5. light salt brine denitration recyclable device according to claim 4, which is characterized in that the control instruction of the controller is first
It is first transferred to the 4th screw conveyor and third screw conveyor, the 4th screw conveyor of control is opened with third screw conveyor
It closes, the keying signal of the 4th screw conveyor and third screw conveyor feeds back to controller, and controller is controlled based on the feedback signal
Make the opening and closing of the second screw conveyor and the first screw conveyor.
6. light salt brine denitration recyclable device according to claim 5, which is characterized in that the denitration recovery control system is also
Including level-one control unit and Two-stage control unit, the station of the level-one control unit and field control unit is connected, institute
Two-stage control unit is stated to connect with level-one control unit；The level-one control unit is used for distance in the progress of denitration recovery approach
Monitoring, the Two-stage control unit are used to carry out remote monitor to denitration recovery approach.
7. light salt brine denitration recyclable device according to claim 6, which is characterized in that the level-one control unit includes behaviour
Work person station and interchanger, the operator station are connect with station, and the interchanger is connect with operator station.
8. light salt brine denitration recyclable device according to claim 7, which is characterized in that the Two-stage control unit includes remote
Range monitoring station and DCS control system, the remote supervisory station are connect with interchanger, the DCS control system and remote supervisory station
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821085655.3U CN208617424U (en) | 2018-07-10 | 2018-07-10 | A kind of light salt brine denitration recyclable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821085655.3U CN208617424U (en) | 2018-07-10 | 2018-07-10 | A kind of light salt brine denitration recyclable device |
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| Publication Number | Publication Date |
|---|---|
| CN208617424U true CN208617424U (en) | 2019-03-19 |
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|---|---|---|---|
| CN201821085655.3U Active CN208617424U (en) | 2018-07-10 | 2018-07-10 | A kind of light salt brine denitration recyclable device |
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| Country | Link |
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| CN (1) | CN208617424U (en) |
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2018
- 2018-07-10 CN CN201821085655.3U patent/CN208617424U/en active Active
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