CN220695947U - Impurity removing device for phosphate production - Google Patents
Impurity removing device for phosphate production Download PDFInfo
- Publication number
- CN220695947U CN220695947U CN202322102556.9U CN202322102556U CN220695947U CN 220695947 U CN220695947 U CN 220695947U CN 202322102556 U CN202322102556 U CN 202322102556U CN 220695947 U CN220695947 U CN 220695947U
- Authority
- CN
- China
- Prior art keywords
- impurity removal
- removal tank
- pipe
- tank
- phosphate production
- 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
- 239000012535 impurity Substances 0.000 title claims abstract description 71
- 229910019142 PO4 Inorganic materials 0.000 title claims abstract description 31
- 239000010452 phosphate Substances 0.000 title claims abstract description 31
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000005452 bending Methods 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 238000001556 precipitation Methods 0.000 claims abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 3
- 239000003814 drug Substances 0.000 claims description 23
- 238000004062 sedimentation Methods 0.000 claims description 4
- 238000005189 flocculation Methods 0.000 abstract description 16
- 230000016615 flocculation Effects 0.000 abstract description 16
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 8
- 150000002500 ions Chemical class 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract 1
- 239000011550 stock solution Substances 0.000 description 13
- 239000008394 flocculating agent Substances 0.000 description 10
- 230000006872 improvement Effects 0.000 description 6
- 238000012856 packing Methods 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 230000003311 flocculating effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical class [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 108010073929 Vascular Endothelial Growth Factor A Proteins 0.000 description 1
- 102000005789 Vascular Endothelial Growth Factors Human genes 0.000 description 1
- 108010019530 Vascular Endothelial Growth Factors Proteins 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000150 monocalcium phosphate Inorganic materials 0.000 description 1
- 235000019691 monocalcium phosphate Nutrition 0.000 description 1
- -1 monohydrogen salt Chemical class 0.000 description 1
- 239000008055 phosphate buffer solution Substances 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model provides a phosphate production impurity removing device, which relates to the technical field of phosphate production equipment and comprises an impurity removing tank, a feeding pipe and a slag discharging pipe, wherein one side of the bottom of the impurity removing tank is communicated with a liquid outlet tank, a stirring mechanism is arranged in the impurity removing tank, and two sides of the impurity removing tank are symmetrically provided with an accelerating precipitation mechanism; according to the utility model, the primary liquid at the bottom of the impurity removal tank can be extracted through the cooperation of the water pump and the water pipe and is conveyed to the top of the impurity removal tank and sprayed downwards, so that the primary liquid circularly flows in the impurity removal tank, the flowing primary liquid can drive the flocculation to collide towards the bending plate, at the moment, the flocculation temporarily stays on the inclined surface of the bending plate, so that the flocculation particles are convenient to contact and combine with each other, and are deposited at the bottom of the impurity removal tank along the inclined surface of the bending plate, and the problems that heavy metal ions are naturally deposited in the deposition tank by using the flocculation agent in the prior art, the consumed time is long, and the impurity removal efficiency of phosphate production is affected are solved.
Description
Technical Field
The utility model relates to the technical field of phosphate production equipment, in particular to a phosphate production impurity removing device.
Background
The phosphate salts are solid, the solubility is gradually increased according to normal salt, monohydrogen salt and dihydrogen salt, the phosphate and enough alkali generate normal salt, the naturally occurring phosphate is phosphate ore (containing calcium phosphate), sulfuric acid reacts with the phosphate ore to generate monocalcium phosphate and calcium sulfate which can be absorbed by plants, and the phosphate can be prepared, and the vascular endothelial growth factor detection reagent contains phosphate buffer solution;
the existing phosphate production process needs to use a flocculating agent to carry out a impurity removal process, the specific process is that the flocculating agent is poured into a precipitation tank containing phosphate stock solution, then the flocculating agent is uniformly mixed with the phosphate stock solution by using a stirring mechanism, heavy metal ions in the phosphate stock solution are gathered and precipitated at the bottom of the precipitation tank, and then the upper stock solution is taken out to finish impurity removal, however, the existing process generally ensures that the heavy metal ions are naturally precipitated in the precipitation tank along with the time, the consumed time is long, and the impurity removal efficiency of phosphate production is affected.
Disclosure of Invention
Aiming at the problems, the utility model provides a phosphate production impurity removing device, which aims to solve the problems that the heavy metal ions are naturally precipitated in a precipitation tank by using a flocculating agent in the prior art, the consumed time is long, and the efficiency of phosphate production impurity removing is affected.
In order to achieve the purpose of the utility model, the utility model is realized by the following technical scheme: the utility model provides a phosphate production edulcoration device, includes edulcoration jar, inlet pipe and scum pipe, one side intercommunication of edulcoration jar top has the inlet pipe, the bottom intercommunication of edulcoration jar has the scum pipe, the opposite side at edulcoration jar top is equipped with the mount, the top of mount is fixed with the medicament pipe, one side intercommunication of edulcoration jar bottom has the play liquid case, the inside of edulcoration jar is equipped with rabbling mechanism, the bilateral symmetry of edulcoration jar is equipped with the accelerating precipitation mechanism.
The further improvement is that: the accelerating precipitation mechanism comprises bending plates, a water pipe, a first water pump and a filter cover, wherein a group of bending plates are symmetrically arranged on two sides of the interior of the impurity removal tank, the first water pump is symmetrically arranged on two sides of the impurity removal tank, the output end of the first water pump is communicated with the top of the impurity removal tank through the water pipe, the output end of the first water pump is communicated with one side of the bottom of the impurity removal tank through the water pipe, and the filter cover is arranged at one end of the water pipe.
The further improvement is that: the two bending plates are staggered in the interior of the impurity removal tank, and the bottom end of one bending plate is connected with the inner wall of the impurity removal tank.
The further improvement is that: the liquid outlet box is characterized in that a filter screen is arranged on one side of the liquid outlet box, a second water pump is arranged on the outer side of the liquid outlet box, two ends of the second water pump are communicated with liquid discharge pipes, and the liquid discharge pipes at the input ends of the second water pump are communicated with the inside of the liquid outlet box.
The further improvement is that: the stirring mechanism comprises a rotating shaft and a stirring blade, a first motor is arranged at the top of the impurity removal tank, the rotating shaft is connected with the upper part inside the impurity removal tank in a rotating mode, the top end of the rotating shaft penetrates through the top of the impurity removal tank and is connected with the output end of the first motor, and the bottom end of the rotating shaft is connected with the stirring blade.
The further improvement is that: the top of medicament pipe one end is equipped with the feeder hopper, the bottom intercommunication of medicament pipe other end has the unloading pipe, be equipped with automatic feeding mechanism on the medicament pipe.
The further improvement is that: the automatic feeding mechanism comprises a packing auger and a second motor, the packing auger is installed in the inner portion of the medicament tube in a rotating mode, the second motor is installed at one end of the medicament tube, one end of the packing auger penetrates through one end of the medicament tube and is connected with the output end of the second motor, and the spiral direction of the packing auger is from right to left.
The beneficial effects of the utility model are as follows: the primary liquid at the bottom of the impurity removal tank can be pumped through the cooperation of the water pump and the water pipe to be conveyed to the top of the impurity removal tank and sprayed downwards, so that the primary liquid circularly flows in the impurity removal tank, the flowing primary liquid can drive the flocculation to collide towards the bending plate, at the moment, the flocculation temporarily stays on the inclined surface of the bending plate, the flocculation particles are conveniently contacted and combined together, and the flocculation particles are deposited at the bottom of the impurity removal tank along the inclined surface of the bending plate, so that the problems that heavy metal ions are naturally deposited in the precipitation tank by using the flocculation agent in the prior art, the consumed time is long, and the impurity removal efficiency of phosphate production is influenced are solved.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a schematic view of the internal structure of the present utility model;
fig. 3 is a schematic structural view of a feeding mechanism of the present utility model.
Wherein: 1. a impurity removing tank; 2. a feed pipe; 3. a slag discharge pipe; 4. a fixing frame; 5. a medicament tube; 6. a liquid outlet box; 7. a bending plate; 8. a water pipe; 9. a first water pump; 10. a filter cover; 11. a second water pump; 12. a liquid discharge pipe; 13. a motor I; 14. a rotation shaft; 15. stirring the leaves; 16. a filter screen; 17. an auger; 18. a motor II; 19. a feed hopper; 20. and (5) blanking pipes.
Detailed Description
The present utility model will be further described in detail with reference to the following examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
According to the fig. 1, 2, 3 show, this embodiment has proposed a phosphate production edulcoration device, including edulcoration jar 1, inlet pipe 2 and scum pipe 3, one side intercommunication at edulcoration jar 1 top has inlet pipe 2, the bottom intercommunication of edulcoration jar 1 has scum pipe 3, the opposite side at edulcoration jar 1 top is equipped with mount 4, the top of mount 4 is fixed with reagent pipe 5, one side intercommunication at the bottom of edulcoration jar 1 has liquid case 6, the inside of edulcoration jar 1 is equipped with rabbling mechanism, the bilateral symmetry of edulcoration jar 1 is equipped with the accelerating precipitation mechanism, pours the phosphate stoste into the inside of edulcoration jar 1 through inlet pipe 2, then puts into the inside of edulcoration jar 1 voluntarily through reagent pipe 5 with the flocculating agent, and mix evenly with the flocculating agent through rabbling mechanism, afterwards stops the stirring to accelerate between the drive flocculating together in the bottom of edulcoration jar 1 through accelerating precipitation mechanism for the work efficiency that the edulcoration device took out heavy metal ion is higher, exports the stock solution after the edulcoration jar 1 through sediment case 6, and then can produce heavy metal ion outside the scum pipe 3.
The top of medicament pipe 5 one end is equipped with feeder hopper 19, the bottom intercommunication of medicament pipe 5 other end has unloading pipe 20, be equipped with automatic feed mechanism on the medicament pipe 5, automatic feed mechanism includes auger 17 and No. two motors 18, auger 17 is installed in the internal rotation of medicament pipe 5, no. two motors 18 are installed to the one end of medicament pipe 5, one end of auger 17 runs through the one end of medicament pipe 5 and is connected with No. two motors 18's output, auger 17's spiral direction is from right left to right, adds the inside of medicament pipe 5 with the flocculating agent through feeder hopper 19, because auger 17 is connected with No. two motors 18's output, no. two motors 18 can drive auger 17 at the inside rotation of medicament pipe 5, and again because of its spiral direction from right to left, drive the automatic direction flow of unloading pipe 20 of flocculating agent to get into the inside of impurity removal jar 1 through unloading pipe 20, conveniently to the automatic material feeding of flocculating agent.
The stirring mechanism comprises a rotating shaft 14 and stirring blades 15, a motor 13 is arranged at the top of the impurity removal tank 1, the rotating shaft 14 is connected to the upper part inside the impurity removal tank 1 in a rotating mode, the top end of the rotating shaft 14 penetrates through the top of the impurity removal tank 1 and is connected with the output end of the motor 13, the bottom end of the rotating shaft 14 is connected with the stirring blades 15, the top end of the rotating shaft 14 is connected with the output end of the motor 13, and the stirring blades 15 are connected with the bottom end of the rotating shaft 14, so that the motor 13 can drive the stirring blades 15 to rotate at the bottom of the impurity removal tank 1, the stirring blades 15 can stir stock solution inside the impurity removal tank 1 to rotate, the stock solution and the flocculating agent are uniformly mixed, and meanwhile, when flocculating discharging is carried out, the stirring blades 15 can also rotate to drive flocculating material to flow out at the bottom of the impurity removal tank 1, and discharging is smooth.
The accelerating sedimentation mechanism comprises a bending plate 7, a water pipe 8, a water pump 9 and a filtering cover 10, wherein a group of bending plates 7 are symmetrically arranged on two sides of the interior of the impurity removal tank 1, the water pump 9 is symmetrically arranged on two sides of the impurity removal tank 1, the output end of the water pump 9 is communicated with the top of the impurity removal tank 1 through the water pipe 8, the output end of the water pump 9 is communicated with one side of the bottom of the impurity removal tank 1 through the water pipe 8, one end of the water pipe 8 is provided with the filtering cover 10, the two bending plates 7 are staggered in the interior of the impurity removal tank 1, one of the bending plates 7 is connected with the inner wall of the impurity removal tank 1, stock solution at the bottom of the impurity removal tank 1 can be extracted through the cooperation of the water pump 9 and the water pipe 8, the stock solution is conveyed to the top of the impurity removal tank 1 and sprayed downwards, the stock solution can circularly flow in the interior of the impurity removal tank 1, the flowing stock solution can drive flocculation to the bending plates 7 to collide, flocculation is carried on the inclined surfaces of the plates 7, the surfaces of the inclined surfaces of the plates are convenient to stay between the bending plates, the bending plates are in contact with each other, the time between the bending plates can be prolonged, and particles can be fully combined with the bending plates along the inclined surfaces of the bending plates, and the bottoms of the bending plates are fully contacted with each other at the time, and the time can be fully staggered with the particle sedimentation plates, and the particle sedimentation time can be fully set.
The filter screen 16 is arranged on one side of the liquid outlet box 6, the second water pump 11 is arranged on the outer side of the liquid outlet box 6, the liquid discharge pipes 12 are respectively communicated with the two ends of the second water pump 11, the liquid discharge pipes 12 at the input end of the second water pump 11 are communicated with the inner part of the liquid outlet box 6, stock solution can pass through the sieve holes of the filter screen 16 to enter the inner part of the liquid outlet box 6, flocculation is intercepted in the inner part of the liquid outlet box 6 by the filter screen 16, and the stock solution after impurity removal can be discharged from the impurity removal tank 1 by the cooperation of the second water pump 11 and the liquid discharge pipes 12.
This phosphate production edulcoration device, can extract the stoste of edulcoration jar 1 bottom through a water pump 9 and raceway 8 cooperation and carry it to the top of edulcoration jar 1 and spout downwards for the stoste circulates in the inside of edulcoration jar 1 and flows, and the stoste that flows can be with driving the flocculation to the impact of bent plate 7, at this moment the flocculation temporarily stays at the inclined surface of bent plate 7, makes things convenient for the flocculation granule to contact each other to combine together, and deposit in the bottom of edulcoration jar 1 along the inclined plane of bent plate 7, in order to solve among the prior art and use the flocculation agent to let heavy metal ion deposit naturally in the precipitation tank, its time that consumes is longer, influence the problem of phosphate production edulcoration efficiency.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a phosphate production edulcoration device, includes edulcoration jar (1), inlet pipe (2) and scum pipe (3), its characterized in that: one side of the top of the impurity removal tank (1) is communicated with a feed pipe (2), the bottom of the impurity removal tank (1) is communicated with a slag discharge pipe (3), the other side of the top of the impurity removal tank (1) is provided with a fixing frame (4), the top of the fixing frame (4) is fixedly provided with a medicament pipe (5), one side of the bottom of the impurity removal tank (1) is communicated with a liquid outlet box (6), a stirring mechanism is arranged in the impurity removal tank (1), and two sides of the impurity removal tank (1) are symmetrically provided with accelerating sedimentation mechanisms;
the accelerating precipitation mechanism comprises a bending plate (7), a water pipe (8), a water pump (9) and a filter cover (10), a group of bending plates (7) are symmetrically arranged on two sides of the interior of the impurity removal tank (1), the water pump (9) is symmetrically arranged on two sides of the impurity removal tank (1), the output end of the water pump (9) is communicated with the top of the impurity removal tank (1) through the water pipe (8), the output end of the water pump (9) is communicated with one side of the bottom of the impurity removal tank (1) through the water pipe (8), and the filter cover (10) is arranged at one end of the water pipe (8).
2. The phosphate production impurity removal device according to claim 1, wherein: the positions of the two bending plates (7) in the impurity removal tank (1) are staggered, and the bottom end of one bending plate (7) is connected with the inner wall of the impurity removal tank (1).
3. The phosphate production impurity removal device according to claim 1, wherein: one side of play liquid case (6) is equipped with filter screen (16), no. two water pumps (11) are installed in the outside of play liquid case (6), no. two both ends of water pump (11) all communicate there is fluid-discharge tube (12), fluid-discharge tube (12) and the inside intercommunication of play liquid case (6) of No. two water pump (11) input.
4. The phosphate production impurity removal device according to claim 1, wherein: the stirring mechanism comprises a rotating shaft (14) and stirring blades (15), a motor (13) is arranged at the top of the impurity removal tank (1), the rotating shaft (14) is rotatably connected to the upper portion inside the impurity removal tank (1), the top end of the rotating shaft (14) penetrates through the top of the impurity removal tank (1) and is connected with the output end of the motor (13), and the stirring blades (15) are connected to the bottom end of the rotating shaft (14).
5. The phosphate production impurity removal device according to claim 1, wherein: the top of medicament pipe (5) one end is equipped with feeder hopper (19), the bottom intercommunication of medicament pipe (5) other end has unloading pipe (20), be equipped with automatic feed mechanism on medicament pipe (5).
6. The phosphate production impurity removal device of claim 5, wherein: the automatic feeding mechanism comprises an auger (17) and a second motor (18), the auger (17) is installed in the medicament tube (5) in a rotating mode, the second motor (18) is installed at one end of the medicament tube (5), one end of the auger (17) penetrates through one end of the medicament tube (5) and is connected with the output end of the second motor (18), and the spiral direction of the auger (17) is from right to left.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322102556.9U CN220695947U (en) | 2023-08-04 | 2023-08-04 | Impurity removing device for phosphate production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322102556.9U CN220695947U (en) | 2023-08-04 | 2023-08-04 | Impurity removing device for phosphate production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220695947U true CN220695947U (en) | 2024-04-02 |
Family
ID=90437557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322102556.9U Active CN220695947U (en) | 2023-08-04 | 2023-08-04 | Impurity removing device for phosphate production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220695947U (en) |
-
2023
- 2023-08-04 CN CN202322102556.9U patent/CN220695947U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111960519A (en) | Flocculation decontamination formula industrial sewage treatment device with self-cleaning function | |
| CN208485650U (en) | A kind of dyeing waste water classification flocculation deposition apparatus | |
| CN220695947U (en) | Impurity removing device for phosphate production | |
| CN112158930A (en) | Infiltration device based on industrial wastewater flocculant and operation method thereof | |
| CN208604005U (en) | A kind of belt type dewaterer flocculation stirring device | |
| CN217127194U (en) | Energy-saving water circulation device for smelting and processing | |
| CN216497634U (en) | Ore dressing is with concentrated machine of center drive | |
| CN215249781U (en) | High-efficient clarifier of concentrated water distribution of reaction | |
| CN216236212U (en) | High-efficient flocculation device is used in water purification treatment | |
| CN215440050U (en) | Thickener convenient for further concentrating salt-containing feed liquid | |
| CN213792222U (en) | Centrifugal separation device for treating electroplating waste liquid | |
| CN215365248U (en) | Environment-friendly multistage sewage treatment device | |
| CN214781431U (en) | Slurry concentration equipment | |
| CN212102313U (en) | A high-efficient sewage treatment device of integration for highway construction | |
| CN211170208U (en) | Clarifier for sewage treatment | |
| CN210392988U (en) | Grain and water mixing and conveying device | |
| CN209940680U (en) | Desulfurization waste water integrated processing apparatus | |
| CN210457903U (en) | Sludge settling tank | |
| CN208777064U (en) | A kind of waste residue rinsing cleaning sedimentation basin | |
| CN111544959A (en) | Silt multi-stage separation device | |
| CN216837457U (en) | Electroplating treatment's waste liquid collection device | |
| CN215962272U (en) | Slag-liquid separation system | |
| CN208661404U (en) | A kind of water-saving and efficient phosphate ore pulp flotation unit | |
| CN110156265A (en) | Integrated effluent disposal system | |
| CN216141370U (en) | Sewage treatment mixes storehouse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |