CN209155169U - A kind of crystallizer and crystal system handling high organic matter rich oil type inorganic salts waste water - Google Patents
A kind of crystallizer and crystal system handling high organic matter rich oil type inorganic salts waste water Download PDFInfo
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- CN209155169U CN209155169U CN201821917132.0U CN201821917132U CN209155169U CN 209155169 U CN209155169 U CN 209155169U CN 201821917132 U CN201821917132 U CN 201821917132U CN 209155169 U CN209155169 U CN 209155169U
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Abstract
The utility model relates to a kind of crystallizer for handling high organic matter rich oil type inorganic salts waste water, structure includes tank body and the elutriation leg for being mounted on tank body lower port lower part；Tank body is divided into foam removal section, vehicle repair major segregation section, organic matter enrichment section, solid-liquid two-phase mixtures section and solid-liquid two-phase laminated flow section from top to bottom；Foam removal section is provided with labyrinth type demister, and is provided with secondary steam outlet on the tank body of foam removal section；Vehicle repair major segregation section is provided with screen type demister；Organic outlet is provided on the tank body of organic matter layering section；Solution inlet is provided on the tank body in solid-liquid two-phase mixtures section；It is provided with the diversion pipe of guidance solution decline in the tank body of solid-liquid two-phase laminated flow section, is provided with oil slick outlet and taphole in solid-liquid two-phase laminated flow section.A kind of crystal system, including above-mentioned crystallizer and circulating pump and heating room is also disclosed in the utility model.The utility model simple process, and each collection of products can be reduced the pollution to environment.
Description
Technical field
The utility model relates to a kind of wastewater treatment equipment, specifically a kind of high organic matter rich oil type inorganic salts of processing
The crystallizer and crystal system of waste water.
Background technique
Oil industry wastewater mainly includes being generated in oil exploitation and refining process containing various inorganic salts and organic matter
Waste water, ingredient is extremely complex, and processing difficulty is big.And the industrial water consumption of oil plant is big, the dispersion of industrial water point, waste water
Source, characteristic and wastewater flow rate and crude oil machining process, the type of crude oil, the equipment used, water recycling degree and
The factors such as maintenance management level are related, and oily waste water is a kind of the maximum amount of waste water of oil plant, mainly contain petroleum, and containing certain
Phenol, acetone, aromatic hydrocarbons of amount etc..Petrochemical wastewater complicated component, total feature are that suspended matter is few, and dissolubility or opaque are organic
Object is more, Chang Hanyou oil and noxious material, sometimes also containing impurity such as sulfide and phenol.Such waste water generally use physical method,
Chemical method or physical-chemical process are handled, but are required to be handled by way of combination, not only complex treatment process,
And investment, operating cost and occupied area all compare it is larger.
Utility model content
The purpose of this utility model is just to provide a kind of crystallizer and knot for handling high organic matter rich oil type inorganic salts waste water
Crystallographic system system, to solve the problems, such as prior art processes complexity.
The utility model is realized in this way: a kind of crystallizer handling high organic matter rich oil type inorganic salts waste water, including
Tank body and the elutriation leg for being mounted on tank body lower port lower part；The tank body is divided into foam removal section, vapour-liquid two from top to bottom
Phase segregation section, organic matter enrichment section, solid-liquid two-phase mixtures section and solid-liquid two-phase laminated flow section；The foam removal section is provided with labyrinth
Formula demister, and secondary steam outlet is provided on the tank body of the foam removal section；The vehicle repair major segregation section is provided with silk
Net formula demister；Organic outlet is provided on the tank body of organic matter layering section；In the tank of the solid-liquid two-phase mixtures section
Solution inlet is provided on body；Solution inlet is provided on the tank body of the solid-liquid two-phase mixtures section；In the solid-liquid two-phase laminated flow
It is provided with guidance solution in the tank body of section and first accelerates the diversion pipe to slow down afterwards, the upper port of the diversion pipe and the inner tank wall
Fitting is provided with oil slick outlet on the tank body lower than the diversion pipe upper port, opens in the tank body lower than oil slick outlet
There is taphole, the taphole is higher than the lower port of the diversion pipe；Recoil is provided in the bottom for eluriating leg to wash
Mouthful, inorganic salts outlet is provided on the side wall for eluriating leg.
The diversion pipe is divided into accelerating sections, speed stabilizing section and diffusive separation section from top to bottom, and the accelerating sections is upper
Small conically shaped, the upper port outer of the conically shaped are bonded with the inner wall of tank body under big, and the speed stabilizing section is vertical cylinder, institute
The upper port for stating cylinder is connected with the lower port of the conically shaped, and the lower port of cylinder described in the diffusive separation Duan Weiyu connects
The horn mouth connect.
Observation window is provided in the position that tank body is located at organic matter enrichment section and the solid-liquid two-phase mixtures section.
The inorganic salts outlet shares several, and height is different.
A kind of crystal system for handling high organic matter rich oil type inorganic salts waste water, including crystallization is also disclosed in the utility model
Device, circulating pump and heating room, the crystallizer includes tank body and the elutriation leg for being mounted on tank body lower port lower part；It is described
Tank body is divided into foam removal section, vehicle repair major segregation section, organic matter enrichment section, solid-liquid two-phase mixtures section and solid-liquid from top to bottom
Two-phase laminated flow section；The foam removal section is provided with labyrinth type demister, and is provided with secondary steam on the tank body of the foam removal section
Outlet；The vehicle repair major segregation section is provided with screen type demister；It has been provided on the tank body of organic matter layering section
The outlet of machine object；Solution inlet is provided on the tank body of the solid-liquid two-phase mixtures section；In the tank body of the solid-liquid two-phase mixtures section
On be provided with solution inlet；It is provided with guidance solution in the tank body of the solid-liquid two-phase laminated flow section and first accelerates the water conservancy diversion to slow down afterwards
Pipe, the upper port of the diversion pipe are bonded with the inner tank wall, are provided on the tank body lower than the diversion pipe upper port floating
Oil export, is provided with taphole in the tank body lower than oil slick outlet, and the taphole is higher than under the diversion pipe
Port；It is provided with backwash entrance in the bottom for eluriating leg, inorganic salts outlet is provided on the side wall for eluriating leg.
The diversion pipe is divided into accelerating sections, speed stabilizing section and diffusive separation section from top to bottom, and the accelerating sections is upper
Small conically shaped, the upper port outer of the conically shaped are bonded with the inner wall of tank body under big, and the speed stabilizing section is vertical cylinder, institute
The upper port for stating cylinder is connected with the lower port of the conically shaped, and the lower port of cylinder described in the diffusive separation Duan Weiyu connects
The horn mouth connect.
Observation window is provided in the position that tank body is located at organic matter enrichment section and the solid-liquid two-phase mixtures section.
The inorganic salts outlet shares several, and height is different.
The outlet of the heating room is connected by pipeline with the solution inlet of the crystallizer, the solution of the crystallizer
Outlet is connected by pipeline with the entrance of the circulating pump, and entering for room is heated with described by pipeline in the outlet of the circulating pump
Mouth is connected；Waterwater entrance is provided on the pipeline for connecting the circulating pump and the heating room；In the outlet of the heating room
End is equipped with thermal medium inlet, and the arrival end in the heating room is equipped with thermal medium outlet.
When the utility model is used, the organic matter rich oil type inorganic salts waste water of superheat state is logical under pressure from molten
Liquid entrance enters crystallizer tank body, and waste water is introduced into solid-liquid two-phase mixtures section, organic because the organic matter density in solution is lower
Object can be enriched in the enrichment section of the organic matter above solid-liquid two-phase mixtures section, and the organic matter of enrichment is discharged from organic outlet.Overheat
The organic matter rich oil type inorganic salts waste water of state enters crystallizer in overheat conditions and flashes, and generates a large amount of secondary steaming
Vapour, secondary steam reach vehicle repair major segregation section by organic matter enrichment section.Vehicle repair major segregation section is provided with screen type foam removal
Device, drop, organic matter and the liquid phase mist carried when secondary steam is detached from from liquid phase are effectively intercepted.It is removed by screen type
The secondary steam of foam device is essentially free of liquid, but in order to which discharge standard can be reached after guaranteeing secondary steam condensing recovery,
Secondary steam need to also finally pass through foam removal section.Foam removal section is provided with labyrinth type demister, it can be by the liquid in secondary steam
Phase mist completely removes.
Since solution is flashed after the solid-liquid two-phase mixtures section of crystallizer tank body, the waste water after flash distillation reaches satiety
With state to which the inorganic salt crystal in part be precipitated, diversion pipe of the solid-liquid two-phase Jing Guo solid-liquid two-phase laminated flow section flows downward, then
It is discharged from the taphole of side.Solid-liquid two-phase first is first accelerated to slow down afterwards by diversion pipe, and crystal grain therein is because quality is big
So the inertia obtained is big, it will continue to be moved downward to and eluriate in leg, and liquid is from meeting after the discharge of the diffusive separation section of diversion pipe
Slow down at once and stop and flow up to the outside of diversion pipe, final liquid can be discharged from taphole, and be higher than solution
Be provided on the tank body of outlet oil slick outlet, with facilitate by liquid oil slick and impurity discharge.Crystal grain is entering elutriation leg
It is layered afterwards because granularity is different, the crystal of variable grain degree exports row from the inorganic salts that height is different on leg are eluriated
Out.
Room, crystallizer, circulating pump one circulatory system of composition are heated, constantly pumps waste water solution under the action of circulating pump
Enter crystallizer, and the liquid extraction after separation recycled again, liquid reaches superheat state by heating room, so as into
It is flashed after entering crystallizer.Inorganic salts in waste water are constantly crystallized precipitation by constantly recycling by crystal system, thus
Obtain inorganic salts solid particle.
The utility model, which only passes through a crystallization tank body and eluriates leg, to carry out organic matter rich oil type inorganic salts waste water
Processing, obtains the crystal of variable grain degree, simple process is easy to use, and can reduce each collection of products to ring
The pollution in border.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model crystallizer.
Fig. 2 is the structural schematic diagram of the utility model crystal system.
Fig. 3 is the schematic diagram of the utility model crystal system secondary work.
In figure: 1, tank body；2, leg is eluriated；3, solid-liquid two-phase mixtures section；4, organic matter is enriched with section；5, vehicle repair major separates
Section；6, foam removal section；7, solid-liquid two-phase laminated flow section；8, crystallizer；9, circulating pump；10, room is heated；1-1, observation window；It is 2-1, inorganic
Salt outlet；2-2, backwash entrance；3-1, solution inlet；4-1, organic outlet；5-1, screen type demister；6-1, labyrinth type
Demister；6-2, secondary steam outlet；7-1, diversion pipe；7-1-1, accelerating sections；7-1-2, speed stabilizing section；7-1-3, diffusive separation
Section；7-2, taphole；7-3, oil slick outlet；10-1, thermal medium entrance；10-2, thermal medium outlet.
Specific embodiment
As shown in Figure 1, the utility model includes tank body 1 and the elutriation leg 2 for being mounted on 1 lower port lower part of tank body.Tank body 1 is
Cylindrical shape, lower end are up big and down small conically shaped, are equipped at the osculum end of taper and eluriate leg 2, and the upper end of tank body 1 is arc
Top cover, and on top cover be equipped with the lesser top seal of diameter cylinder.Tank body 1 be divided into from top to bottom foam removal section 6,
Vehicle repair major segregation section 5, organic matter enrichment section 4, solid-liquid two-phase mixtures section 3 and solid-liquid two-phase laminated flow section 7.
Foam removal section 6 is provided with labyrinth type demister 6-1, and is provided with secondary steam outlet 6- on the tank body of foam removal section 61
2.Vehicle repair major segregation section 5 is provided with screen type demister 5-1.Organic matter is provided on the tank body 1 of organic matter layering section to go out
Mouth 4-1.Solution inlet 3-1 is provided on the tank body 1 in solid-liquid two-phase mixtures section 3.In the tank body 1 of solid-liquid two-phase laminated flow section 7
It is provided with guidance solution and first accelerates the diversion pipe 7-1 slowed down afterwards, diversion pipe 7-1 upper port is bonded with 1 inner wall of tank body, solid
The top of 7 tank body 1 of liquid two-phase laminated flow section is provided with oil slick outlet 7-3, and oil slick exports the upper port that 7-3 is lower than diversion pipe 7-1, solid
The middle part of 7 tank body 1 of liquid two-phase laminated flow section is provided with taphole 7-2, and taphole 7-2 is lower than oil slick outlet 7-3 and is higher than water conservancy diversion
The lower port of pipe 7-1.It is provided with backwash entrance 2-2 in the bottom for eluriating leg, inorganic salts outlet is provided on the side wall for eluriating leg
2-1.Inorganic salts outlet 2-1 shares several, and height is different.It is located at organic matter enrichment section 4 and solid-liquid two-phase mixtures in tank body 1
The position of section 3 is provided with observation window 1-1, to observe the case where 3 solid of solid-liquid two-phase mixtures section is precipitated and organic matter enrichment section 4
The layering situation of middle organic matter.
Diversion pipe 7-1 is divided into accelerating sections 7-1-1, speed stabilizing section 7-1-2 and diffusive separation section 7-1-3 from top to bottom,
Accelerating sections 7-1-1 is up big and down small conically shaped, and the upper port outer of conically shaped is bonded with the inner wall of tank body 1, speed stabilizing section 7-1-2
For vertical cylinder, the upper port of cylinder is connected with the lower port of conically shaped, and diffusive separation section 7-1-3 is the lower port with cylinder
The horn mouth of connection.
It crosses hot solution to be pressed into crystallizer 8, solution enters in tank body 1 from the solution inlet 3-1 of solid-liquid two-phase mixtures section 3
Portion, due to the high-pressure solution that solution is overheat, solution flashes after entering the tank body 1 of low pressure, and solution flashes off largely secondary
Steam, solution reaches hypersaturated state to which the inorganic salt crystal in part be precipitated, to form the mixed liquor of solid-liquid two-phase after flash distillation
Body.Organic matter in solution moves up the top for floating on solid-liquid two-phase mixtures liquid because density is lower, forms organic matter mixing
Section, organic matter are discharged after being enriched to a certain amount by organic outlet 4-1.
The secondary steam flashed off is enriched with section 4 by organic matter and continues to move up, and reaches vehicle repair major segregation section 5, vapour
Drop, organic matter and the liquid phase that the screen type demister 5-1 of liquid two-phase laminated flow section 5 is carried when being detached from secondary steam from liquid phase
Mist is effectively intercepted, and the number of plies and mesh number of screen type demister 5-1 by the easy foaming component in waste water solution and is given up
The viscosity of water determines.It is additionally provided with foam removal section 6 in the top of vehicle repair major segregation section 5, foam removal section 6 is provided with labyrinth type demister
The liquid phase mist that 6-1, labyrinth type demister 6-1 can to the full extent carry secondary steam removes, to guarantee secondary
Discharge standard can be reached after recycling of condensed steam.
Solid-liquid two-phase mixtures liquid flows downward and crystallizer 8 is discharged from the taphole 7-2 of solid-liquid two-phase laminated flow section 7.It is mixed
It closes solution to be flowed downward by diversion pipe 7-1 guidance, solid-liquid two-phase first passes through the accelerating sections 7-1-1 of diversion pipe 7-1, because of accelerating sections
7-1-1's is gradually reduced from top to bottom by area, so solid-liquid two-phase mixtures liquid constantly accelerates when the section moves down.
The speed of solid-liquid two-phase tends at the uniform velocity after arrival speed stabilizing section 7-1-2, diffusive separation section 7-1-3 is then reached, because of mixing liquid
Flow area increases suddenly after reaching diffusive separation section 7-1-3, and the liquid phase in solid-liquid two-phase reduces speed now, and flows up last
It is discharged from taphole 7-2, and the particle of solid phase will continue to move down since the larger possessed inertia of quality is big, from
And solid-liquid two-phase can separate.It turns in liquid phase after separation in the space between diversion pipe 7-1 and tank body 1, is equipped at this
Taphole 7-2, liquid phase are discharged from outlet, and the oil slick and impurity carried in liquid phase can float on the upper of liquid phase since density is lower
The oil slick of side, aggregation is discharged from oil slick outlet 7-3.Solid phase continues to move down arrival elutriation leg 2 under the action of inertia, from solid-liquid two
The crystalline particle of phase segregation section 7 is eluriating long crystalline substance in leg 2, and the crystal of variable grain degree is layered in elutriation leg 2,
Multiple inorganic salts outlet 2-1 can be in the product for the different parts output variable grain diameter for eluriating leg 2.Leg 2 is eluriated to need to determine
When carry out backwash with prevent crystal grain will eluriate leg and inorganic salts outlet 2-1 blocking.
As shown in Fig. 2, above-mentioned crystallizer 8, which is also disclosed, in the utility model matches group with heating room and circulating pump 9
At crystal system, the outlet for heating room is connected by pipeline with the solution inlet 3-1 of crystallizer 8, the taphole of crystallizer 8
7-2 is connected by pipeline with the entrance of circulating pump 9, and the outlet of circulating pump 9 is connected by pipeline with the entrance of heating room.?
Waterwater entrance is provided on connection circulating pump 9 and the pipeline of heating room.It is equipped with thermal medium entrance 10-1 in the outlet end of heating room,
The arrival end for heating room is equipped with thermal medium outlet 10-2.Waste water solution is constantly pumped into crystallizer 8 by circulating pump 9, and by solid-liquid
Liquid after separation is extracted out from taphole 7-2, and the crystallization of solution is made to form the process of a circulation, and waste water passes through multiple sudden strain of a muscle
Inorganic salt crystal is constantly precipitated in steaming.It constantly inputs new waste water solution by waterwater entrance, waste water and is taken out out of crystallizer 8
Liquid mixing out enters heating room together, and superheat state is reached after oven heats, is then pumped into from solution inlet 3-1
Crystallizer 8 is crystallized.
As shown in figure 3, the crystal system can be run with single-stage multistage to be run, when multistage operation by upper level
Secondary steam outlet 6-2 is connected by pipeline with the heating room thermal medium entrance 10-1 of next stage, and will be from upper level with pipeline
Taphole 7-2 extraction solution shunt to next stage waterwater entrance.Thermal energy can be effectively utilized when multistage operation, subtract
The waste of few energy, and every level-one crystal system can the inorganic salt crystal of output.
Claims (9)
1. a kind of crystallizer for handling high organic matter rich oil type inorganic salts waste water, characterized in that including tank body and be mounted on described
The elutriation leg of tank body lower port lower part；It is rich that the tank body is divided into foam removal section, vehicle repair major segregation section, organic matter from top to bottom
Collect section, solid-liquid two-phase mixtures section and solid-liquid two-phase laminated flow section；The foam removal section is provided with labyrinth type demister, and described
Secondary steam outlet is provided on the tank body of foam removal section；The vehicle repair major segregation section is provided with screen type demister；Described
Organic outlet is provided on the tank body of organic matter layering section；Solution inlet is provided on the tank body of the solid-liquid two-phase mixtures section；
Be provided with guidance solution in the tank body of the solid-liquid two-phase laminated flow section and first accelerate the diversion pipe to slow down afterwards, the diversion pipe it is upper
Port is bonded with the inner tank wall, oil slick outlet is provided on the tank body lower than the diversion pipe upper port, lower than described
Taphole is provided on the tank body of oil slick outlet, the taphole is higher than the lower port of the diversion pipe；In the elutriation leg
Bottom be provided with backwash entrance, it is described eluriate leg side wall on be provided with inorganic salts outlet.
2. the crystallizer of the high organic matter rich oil type inorganic salts waste water of processing according to claim 1, characterized in that described to lead
Flow tube is divided into accelerating sections, speed stabilizing section and diffusive separation section from top to bottom, and the accelerating sections is up big and down small conically shaped,
The upper port outer of the conically shaped is bonded with the inner wall of tank body, and the speed stabilizing section is vertical cylinder, the upper port of the cylinder
It is connected with the lower port of the conically shaped, the horn mouth of the lower port connection of cylinder described in the diffusive separation Duan Weiyu.
3. the crystallizer of the high organic matter rich oil type inorganic salts waste water of processing according to claim 1, characterized in that in tank body
Observation window is provided with positioned at the position that the organic matter is enriched with section and the solid-liquid two-phase mixtures section.
4. the crystallizer of the high organic matter rich oil type inorganic salts waste water of processing according to claim 1, characterized in that the nothing
The outlet of machine salt shares several, and height is different.
5. a kind of crystal system for handling high organic matter rich oil type inorganic salts waste water, including crystallizer, circulating pump and heating room,
It is characterized in that the crystallizer includes tank body and the elutriation leg for being mounted on tank body lower port lower part；The tank body on to
Under be divided into foam removal section, vehicle repair major segregation section, organic matter enrichment section, solid-liquid two-phase mixtures section and solid-liquid two-phase laminated flow
Section；The foam removal section is provided with labyrinth type demister, and is provided with secondary steam outlet on the tank body of the foam removal section；Institute
It states vehicle repair major segregation section and is provided with screen type demister；Organic outlet is provided on the tank body of organic matter layering section；
Solution inlet is provided on the tank body of the solid-liquid two-phase mixtures section；It is provided with and draws in the tank body of the solid-liquid two-phase laminated flow section
It leads solution and first accelerates the diversion pipe to slow down afterwards, the upper port of the diversion pipe is bonded with the inner tank wall, is led lower than described
It is provided with oil slick outlet on the tank body of flow tube upper port, is provided with taphole in the tank body lower than oil slick outlet, it is described molten
Liquid outlet is higher than the lower port of the diversion pipe；It is provided with backwash entrance in the bottom for eluriating leg, in the elutriation leg
Inorganic salts outlet is provided on side wall.
6. the crystal system of the high organic matter rich oil type inorganic salts waste water of processing according to claim 5, characterized in that described
Diversion pipe is divided into accelerating sections, speed stabilizing section and diffusive separation section from top to bottom, and the accelerating sections is up big and down small taper
Cylinder, the upper port outer of the conically shaped are bonded with the inner wall of tank body, and the speed stabilizing section is vertical cylinder, the upper end of the cylinder
Mouth is connected with the lower port of the conically shaped, the horn mouth of the lower port connection of cylinder described in the diffusive separation Duan Weiyu.
7. the crystal system of the high organic matter rich oil type inorganic salts waste water of processing according to claim 5, characterized in that in tank
Body is located at organic matter enrichment section and the position of the solid-liquid two-phase mixtures section is provided with observation window.
8. the crystal system of the high organic matter rich oil type inorganic salts waste water of processing according to claim 5, characterized in that described
Inorganic salts outlet shares several, and height is different.
9. the crystal system of the high organic matter rich oil type inorganic salts waste water of processing according to claim 5, characterized in that described
The outlet of heating room is connected by pipeline with the solution inlet of the crystallizer, and the taphole of the crystallizer passes through pipeline
It is connected with the entrance of the circulating pump, the outlet of the circulating pump is connected by pipeline with the entrance of the heating room；?
It connects and is provided with waterwater entrance on the circulating pump and the pipeline of the heating room；Thermal medium is equipped in the outlet end of the heating room
Import, the arrival end in the heating room are equipped with thermal medium outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821917132.0U CN209155169U (en) | 2018-11-21 | 2018-11-21 | A kind of crystallizer and crystal system handling high organic matter rich oil type inorganic salts waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821917132.0U CN209155169U (en) | 2018-11-21 | 2018-11-21 | A kind of crystallizer and crystal system handling high organic matter rich oil type inorganic salts waste water |
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| Publication Number | Publication Date |
|---|---|
| CN209155169U true CN209155169U (en) | 2019-07-26 |
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ID=67339179
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821917132.0U Expired - Fee Related CN209155169U (en) | 2018-11-21 | 2018-11-21 | A kind of crystallizer and crystal system handling high organic matter rich oil type inorganic salts waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112870755A (en) * | 2021-01-11 | 2021-06-01 | 青岛理工大学 | Potassium chloride solution concentration and crystallization production system based on waste heat of blast furnace slag flushing water and working method |
-
2018
- 2018-11-21 CN CN201821917132.0U patent/CN209155169U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112870755A (en) * | 2021-01-11 | 2021-06-01 | 青岛理工大学 | Potassium chloride solution concentration and crystallization production system based on waste heat of blast furnace slag flushing water and working method |
| CN112870755B (en) * | 2021-01-11 | 2022-04-22 | 青岛理工大学 | Potassium chloride solution concentration and crystallization production system based on waste heat of blast furnace slag flushing water and working method |
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| CP03 | Change of name, title or address |
Address after: 050000 10-1201, Fangda Science Park, 266 Tianshan Street, high tech Zone, Shijiazhuang City, Hebei Province Patentee after: Shijiazhuang Dingwei Chemical Equipment Engineering Co.,Ltd. Address before: 050000 3rd floor, building 6, 266 Tianshan Street, high tech Zone, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG DINGWEI CHEMICAL EQUIPMENT ENGINEERING Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190726 Termination date: 20211121 |