CN213147083U - Cooling device for water reducing agent - Google Patents
Cooling device for water reducing agent Download PDFInfo
- Publication number
- CN213147083U CN213147083U CN202021132715.XU CN202021132715U CN213147083U CN 213147083 U CN213147083 U CN 213147083U CN 202021132715 U CN202021132715 U CN 202021132715U CN 213147083 U CN213147083 U CN 213147083U
- Authority
- CN
- China
- Prior art keywords
- cooling
- heat dissipation
- pipe
- reducing agent
- liquid
- 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.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 147
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 60
- 239000002826 coolant Substances 0.000 claims abstract description 17
- 230000017525 heat dissipation Effects 0.000 claims description 52
- 238000003756 stirring Methods 0.000 claims description 37
- 239000000110 cooling liquid Substances 0.000 claims description 24
- 238000005086 pumping Methods 0.000 claims description 6
- 239000011232 storage material Substances 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 241000883990 Flabellum Species 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Images
Abstract
The utility model relates to the technical field of water reducing agent cooling, in particular to a cooling device for a water reducing agent, which is provided with a coiling cooling mechanism, thereby being convenient for improving the cooling effect and improving the use efficiency; including the cooling tank, the intercommunication conveyer pipe, the coolant liquid conveyer pipe, cooling coil, the circulating pump, the cooling tube, the cooler bin, coolant and first valve, the inlet intercommunication sets up in the cooling tank upper end, the liquid outlet intercommunication sets up at the cooling tank lower extreme, intercommunication conveyer pipe output and inlet upper end intercommunication, coolant liquid conveyer pipe left end and cooling coil right-hand member intercommunication, cooling coil coils and sets up in the cooling tank circumference outside, the circulating pump intercommunication sets up at coolant liquid conveyer pipe middle part, the circulating pump sets up in the cooler bin left side, cooling tube left end and coolant liquid conveyer pipe right-hand member intercommunication, the inside cavity that is provided with of cooler bin, the cooler bin sets up on the cooler bin right side, and the cooling tube sets up inside the cooler bin, the inside coolant that is filled of cooler bin, first valve intercommunication sets up at the liquid.
Description
Technical Field
The utility model relates to a water-reducing agent refrigerated technical field especially relates to a cooling device for water-reducing agent.
Background
As is known, the water reducing agent is a concrete admixture capable of reducing the water consumption for mixing under the condition of keeping the slump of concrete basically unchanged. Most of them are anionic surfactants, such as lignosulfonate and naphthalene sulfonate formaldehyde polymer. After the concrete mixture is added, the cement particles are dispersed, the workability of the concrete mixture can be improved, the unit water consumption is reduced, the fluidity of the concrete mixture is improved, or the unit cement consumption is reduced, the appearance form of the water reducing agent is divided into water agent and powder, the liquid water reducing agent needs to be heated and mixed in the production process, the temperature of the produced liquid water reducing agent is higher, the liquid water reducing agent needs to be cooled for use, the cooling effect of the existing cooling device is poor, and the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a coil cooling body through the setting, be convenient for improve the cooling effect, improve and use high efficiency's cooling device for the water-reducing agent.
The utility model discloses a cooling device for water reducing agent, which comprises a cooling tank, a liquid inlet, a liquid outlet, a communicating conveying pipe, a cooling liquid conveying pipe, a cooling coil pipe, a circulating pump, a cooling pipe, a cooling box, a cold-storage agent and a first valve, wherein the cooling tank is internally provided with the cooling cavity, the liquid inlet is communicated with the upper end of the cooling tank, the liquid outlet is communicated with the lower end of the cooling tank, the output end of the communicating conveying pipe is communicated with the upper end of the liquid inlet, the left end of the cooling liquid conveying pipe is communicated with the right end of the cooling coil pipe, the cooling coil pipe is coiled and arranged outside the circumference of the cooling tank, the circulating pump is communicated and arranged in the middle of the cooling liquid conveying pipe, the circulating pump is arranged on the left side of the cooling box, the left end of the cooling pipe is communicated with the right end of, the first valve is communicated with and arranged at the lower end of the liquid outlet.
The utility model discloses a cooling device for water-reducing agent, still including heat dissipation case, feed liquor pipe, louvre, liquid suction pipe and water pump, the heat dissipation case sets up in the cooling tank left side, and heat dissipation incasement portion is provided with the heat dissipation chamber, and feed liquor pipe intercommunication sets up at heat dissipation case left end upside, and heat dissipation case upper end intercommunication is provided with the multiunit louvre, and liquid suction pipe input and heat dissipation case right-hand member downside intercommunication, the water pump left end is connected with heat dissipation case right-hand member, and liquid suction pipe output communicates with the water pump input, communicates conveyer pipe input and water pump output intercommunication.
The utility model discloses a cooling device for water-reducing agent still includes fan motor, fan pivot, flabellum installation cover and flabellum, and fan motor fixed mounting is in heat dissipation case upper end middle part, and fan pivot input is connected with fan motor output, and flabellum installation cover upper end is connected with fan pivot lower extreme, and flabellum installation cover circumference outside is around being provided with the multiunit flabellum.
The utility model discloses a cooling device for water-reducing agent still stirs motor, speed reducer, stirring axle and stirring blade including stirring, stirs the motor upper end and is connected with heat dissipation case lower extreme, and the speed reducer input is connected with stirring motor output, stirs axle lower extreme input and is connected with the speed reducer output, and the multiunit is stirred the blade ring cover and is set up in stirring the axle circumference outside.
The utility model discloses a cooling device for water-reducing agent still includes the second valve, and second valve intercommunication sets up at the liquid suction pipe middle part.
The utility model discloses a cooling device for water-reducing agent still includes communicating pipe, and communicating pipe intercommunication sets up at heat dissipation case left end.
The utility model discloses a cooling device for water-reducing agent still includes the scale mark, and communicating pipe outer end left side portrayal is provided with the scale mark.
The utility model discloses a cooling device for water-reducing agent, the inside packing of heat dissipation case lateral wall is provided with thermal-insulated cotton.
Compared with the prior art, the beneficial effects of the utility model are that: conveying and injecting a water reducing agent into the liquid inlet through a communicating conveying pipe, then enabling the water reducing agent to enter the cooling tank through the liquid inlet, simultaneously starting a circulating pump, enabling a cooling liquid in the cooling liquid conveying pipe to start circulating through the circulating pump, then enabling the cooling liquid to enter a cooling coil pipe through the cooling liquid conveying pipe, then cooling the inside of the cooling tank through the cooling coil pipe arranged on the outer side of the circumference of the cooling tank in a coiling manner, then enabling the water reducing agent in the cooling tank to be rapidly cooled, then enabling the heat exchange temperature of the cooling liquid circulated through the cooling coil pipe and the high-temperature water reducing agent to rise, then enabling the cooling liquid to enter the cooling pipe through the cooling liquid conveying pipe in a circulating manner, then enabling the cooling pipe to be rapidly cooled through the heat exchange of a coolant filled in the cooling tank, repeating in such a manner, enabling the water, the cooling effect is convenient to improve, and the use efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of part A of FIG. 1;
FIG. 3 is an enlarged view of the portion B of FIG. 1;
in the drawings, the reference numbers: 1. a cooling tank; 2. a liquid inlet; 3. a liquid outlet; 4. the conveying pipe is communicated; 5. a coolant delivery pipe; 6. a cooling coil; 7. a circulation pump; 8. a cooling tube; 9. a cooling tank; 10. a coolant; 11. a first valve; 12. a heat dissipation box; 13. a liquid inlet pipe; 14. heat dissipation holes; 15. a liquid pumping pipe; 16. a water pump; 17. a fan motor; 18. a fan rotating shaft; 19. a fan blade mounting sleeve; 20. a fan blade; 21. a stirring motor; 22. a speed reducer; 23. turning over a stirring shaft; 24. turning over the stirring blades; 25. a second valve; 26. a communicating pipe; 27. scale lines are marked.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in figures 1 to 3, the cooling device for water reducing agent of the utility model comprises a cooling tank 1, a liquid inlet 2, a liquid outlet 3, a communicating conveying pipe 4, a cooling liquid conveying pipe 5, a cooling coil 6, a circulating pump 7, a cooling pipe 8, a cooling box 9, a cold storage agent 10 and a first valve 11, wherein a cooling cavity is arranged inside the cooling tank 1, the liquid inlet 2 is communicated with the upper end of the cooling tank 1, the liquid outlet 3 is communicated with the lower end of the cooling tank 1, the output end of the communicating conveying pipe 4 is communicated with the upper end of the liquid inlet 2, the left end of the cooling liquid conveying pipe 5 is communicated with the right end of the cooling coil 6, the cooling coil 6 is coiled outside the circumference of the cooling tank 1, the circulating pump 7 is communicated with the middle part of the cooling liquid conveying pipe 5, the circulating pump 7 is arranged on the left side of the cooling box 9, the left, the cooling tank 9 is arranged at the right side of the cooling tank 1, the cooling pipe 8 is arranged in the cooling tank 9, the cooling tank 9 is filled with coolant 10, and the first valve 11 is communicated with the lower end of the liquid outlet 3; the water reducing agent is conveyed and injected into the liquid inlet 2 through the communicating conveying pipe 4, then the water reducing agent enters the cooling tank 1 through the liquid inlet 2, the circulating pump 7 is started simultaneously, the circulating pump 7 enables cooling liquid inside the cooling liquid conveying pipe 5 to start circulation, then the cooling liquid enters the cooling coil 6 through the cooling liquid conveying pipe 5, then the cooling tank 1 is cooled through the cooling coil 6 arranged outside the circumference of the cooling tank 1 in a coiling manner, then the water reducing agent inside the cooling tank 1 is rapidly cooled, then the heat exchange temperature of the cooling liquid and the high-temperature water reducing agent circulating through the cooling coil 6 is raised, then the cooling liquid enters the cooling pipe 8 through the circulation of the cooling liquid conveying pipe 5, then the cooling pipe 8 is rapidly cooled through the heat exchange of the cold storage agent 10 filled inside the cooling tank 9, the reciprocating manner is carried out, the water reducing agent inside the cooling tank 1 is rapidly cooled, after the cooling is, through setting up the cooling body that coils, be convenient for improve the cooling effect, improve and use the high efficiency.
The utility model discloses a cooling device for water-reducing agent, still include heat dissipation case 12, feed liquor pipe 13, louvre 14, liquid suction pipe 15 and water pump 16, heat dissipation case 12 sets up in cooling tank 1 left side, the inside heat dissipation chamber that is provided with of heat dissipation case 12, feed liquor pipe 13 intercommunication sets up at heat dissipation case 12 left end upside, heat dissipation case 12 upper end intercommunication is provided with multiunit louvre 14, liquid suction pipe 15 input and heat dissipation case 12 right-hand member downside communicate, the water pump 16 left end is connected with heat dissipation case 12 right-hand member, liquid suction pipe 15 output communicates with water pump 16 input, communicate conveyer pipe 4 input and water pump 16 output; through 13 inside the stewing of liquid inlet pipe with the water-reducing agent filling entering heat dissipation case 12, later high temperature water-reducing agent heat is at the inside diffusion of heat dissipation case 12, then the heat is outwards discharged through multiunit louvre 14, increases the cooling effect, improves the practicality of using.
The cooling device for the water reducing agent of the utility model also comprises a fan motor 17, a fan rotating shaft 18, a fan blade mounting sleeve 19 and fan blades 20, wherein the fan motor 17 is fixedly mounted in the middle of the upper end of the heat dissipation box 12, the input end of the fan rotating shaft 18 is connected with the output end of the fan motor 17, the upper end of the fan blade mounting sleeve 19 is connected with the lower end of the fan rotating shaft 18, and a plurality of groups of fan blades 20 are arranged around the outer side of the circumference of the fan blade mounting sleeve 19; the fan motor 17 is started, then the output end of the fan motor 17 drives the fan rotating shaft 18 to rotate, then the fan rotating shaft 18 for rotation drives the fan blades 20 to rotate through the fan blade mounting sleeve 19, then the internal gas of the heat dissipation box 12 circulates through the rotating fan blades 20, the exhaust rate of the internal hot gas of the heat dissipation box 12 is accelerated, and the use efficiency is improved.
The utility model discloses a cooling device for water reducing agent, still include stirring motor 21, speed reducer 22, stirring axle 23 and stirring blade 24, stirring motor 21 upper end is connected with heat dissipation case 12 lower extreme, speed reducer 22 input end is connected with stirring motor 21 output, stirring axle 23 lower extreme input end is connected with speed reducer 22 output, the 24 annulars of multiunit stirring blade set up in stirring axle 23 circumference outside; the stirring motor 21 is started, the output end of the stirring motor 21 drives the stirring shaft 23 to rotate through the speed reducer 22, then the rotating stirring shaft 23 drives the multiple groups of stirring blades 24 to rotate, the water reducing agent solution in the heat dissipation box 12 is stirred, the heat dissipation rate is increased, and the cooling efficiency is improved.
The cooling device for the water reducing agent of the utility model also comprises a second valve 25, wherein the second valve 25 is communicated with and arranged in the middle of the liquid pumping pipe 15; through setting up second valve 25, be convenient for control water-reducing agent solution and take out speed, improve and use the controllability.
The cooling device for the water reducing agent of the utility model also comprises a communicating pipe 26, wherein the communicating pipe 26 is communicated with and arranged at the left end of the heat dissipation box 12; through setting up communicating pipe 26, be convenient for observe the liquid level height of the inside solution of heat dissipation case 12, avoid solution to fill excessively, improve stability in use.
The cooling device for the water reducing agent of the utility model also comprises a scale mark 27, and the scale mark 27 is arranged on the left side of the outer end of the communicating pipe 26; through setting up scale mark 27, be convenient for when the cooling water-reducing agent, statistics new-made water-reducing agent's quality improves the convenience of use.
In the cooling device for the water reducing agent, the heat insulation cotton is filled in the side wall of the heat dissipation box 12; through setting up thermal-insulated cotton, be convenient for completely cut off the inside heat of heat dissipation case 12, avoid the unexpected touching personnel of scalding of personnel, improve the safety in utilization.
The utility model discloses a cooling device for water reducing agent, when in operation, the water reducing agent is filled into the interior of a heat dissipation box through a liquid inlet pipe, a fan motor is started, then the output end of the fan motor drives a fan rotating shaft to rotate, then the rotating fan rotating shaft drives a fan blade to rotate through a fan blade mounting sleeve, then the gas inside the heat dissipation box is circulated through the rotating fan blade, the hot gas discharge rate inside the heat dissipation box is accelerated, then a stirring motor is started, the output end of the stirring motor drives a stirring shaft to rotate through a speed reducer, then the rotating stirring shaft drives a plurality of groups of stirring blades to rotate, the water reducing agent solution inside the heat dissipation box is stirred, the heat dispersion rate is improved, then a water pump is started, the water reducing agent in the heat dissipation box is extracted through a liquid pumping pipe, then the water reducing agent is conveyed into a liquid inlet through a communicating conveying pipe, after start-up circulating pump, the circulating pump makes the inside coolant liquid of coolant liquid conveyer pipe begin to circulate, then the coolant liquid passes through the coolant liquid conveyer pipe and gets into in the cooling coil, later through set up the cooling coil in the cooling tank circumference outside cooling down to cooling tank inside, then make the inside water-reducing agent rapid cooling of cooling tank, later through the coolant liquid and the high temperature water-reducing agent heat transfer temperature rise of cooling coil circulation, then through the coolant liquid conveyer pipe circulation get into in the cooling tube, later the cooling tube is through the cold-storage agent heat transfer rapid cooling of the inside packing of cooling tank, so reciprocal, make the inside water-reducing agent rapid cooling of cooling tank, open after the cooling is accomplished first valve with the water-reducing agent discharge can.
The utility model discloses a cooling device for water-reducing agent, its mounting means, connected mode or set up the mode and be common mechanical type, as long as can reach all can implement of its beneficial effect.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A cooling device for a water reducing agent is characterized by comprising a cooling tank (1), a liquid inlet (2), a liquid outlet (3), a communicating conveying pipe (4), a cooling liquid conveying pipe (5), a cooling coil (6), a circulating pump (7), a cooling pipe (8), a cooling box (9), a cold storage agent (10) and a first valve (11), wherein a cooling cavity is arranged inside the cooling tank (1), the liquid inlet (2) is communicated and arranged at the upper end of the cooling tank (1), the liquid outlet (3) is communicated and arranged at the lower end of the cooling tank (1), the output end of the communicating conveying pipe (4) is communicated with the upper end of the liquid inlet (2), the left end of the cooling liquid conveying pipe (5) is communicated with the right end of the cooling coil (6), the cooling coil (6) is coiled and arranged at the outer side of the circumference of the cooling tank (1), the circulating pump (7) is communicated and arranged at the middle part of the cooling liquid conveying pipe, the left end of the cooling pipe (8) is communicated with the right end of the cooling liquid conveying pipe (5), a cavity is arranged inside the cooling box (9), the cooling box (9) is arranged on the right side of the cooling tank (1), the cooling pipe (8) is arranged inside the cooling box (9), a cooling agent (10) is filled inside the cooling box (9), and the first valve (11) is communicated with the lower end of the liquid outlet (3).
2. The cooling device for the water reducer according to claim 1, further comprising a heat dissipation box (12), a liquid inlet pipe (13), heat dissipation holes (14), a liquid pumping pipe (15) and a water pump (16), wherein the heat dissipation box (12) is arranged on the left side of the cooling tank (1), a heat dissipation cavity is arranged inside the heat dissipation box (12), the liquid inlet pipe (13) is communicated with the upper side of the left end of the heat dissipation box (12), a plurality of groups of heat dissipation holes (14) are communicated with the upper end of the heat dissipation box (12), the input end of the liquid pumping pipe (15) is communicated with the lower side of the right end of the heat dissipation box (12), the left end of the water pump (16) is connected with the right end of the heat dissipation box (12), the output end of the liquid pumping pipe (15) is communicated with the input end of the water pump.
3. The cooling device for the water reducing agent according to claim 2, further comprising a fan motor (17), a fan rotating shaft (18), a fan blade mounting sleeve (19) and fan blades (20), wherein the fan motor (17) is fixedly mounted in the middle of the upper end of the heat dissipation box (12), the input end of the fan rotating shaft (18) is connected with the output end of the fan motor (17), the upper end of the fan blade mounting sleeve (19) is connected with the lower end of the fan rotating shaft (18), and a plurality of groups of fan blades (20) are arranged on the outer side of the circumference of the fan blade mounting sleeve (19) in a surrounding manner.
4. The cooling device for the water reducer according to claim 3, further comprising a stirring motor (21), a speed reducer (22), a stirring shaft (23) and stirring blades (24), wherein the upper end of the stirring motor (21) is connected with the lower end of the heat dissipation box (12), the input end of the speed reducer (22) is connected with the output end of the stirring motor (21), the input end of the lower end of the stirring shaft (23) is connected with the output end of the speed reducer (22), and a plurality of groups of stirring blades (24) are annularly arranged outside the circumference of the stirring shaft (23).
5. The cooling device for the water reducing agent according to claim 4, further comprising a second valve (25), wherein the second valve (25) is communicated with and arranged in the middle of the liquid extracting pipe (15).
6. The cooling device for the water reducing agent according to claim 5, further comprising a communication pipe (26), wherein the communication pipe (26) is communicatively provided at the left end of the radiator tank (12).
7. The cooling device for the water reducing agent according to claim 6, further comprising scale marks (27), wherein the scale marks (27) are marked on the left side of the outer end of the communicating pipe (26).
8. The cooling device for the water reducing agent according to claim 7, wherein the side wall of the heat dissipation box (12) is filled with heat insulation cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021132715.XU CN213147083U (en) | 2020-06-18 | 2020-06-18 | Cooling device for water reducing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021132715.XU CN213147083U (en) | 2020-06-18 | 2020-06-18 | Cooling device for water reducing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213147083U true CN213147083U (en) | 2021-05-07 |
Family
ID=75727861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021132715.XU Expired - Fee Related CN213147083U (en) | 2020-06-18 | 2020-06-18 | Cooling device for water reducing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213147083U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562897A (en) * | 2022-03-09 | 2022-05-31 | 南通元兴智能科技有限公司 | Automatic polishing solution cooling system for polishing silicon carbide |
| CN115042400A (en) * | 2022-08-01 | 2022-09-13 | 江苏食品药品职业技术学院 | Internal cooling device of injection mold |
| CN117966081A (en) * | 2024-03-28 | 2024-05-03 | 山西晋东南神话新材料有限公司 | Nitriding furnace |
-
2020
- 2020-06-18 CN CN202021132715.XU patent/CN213147083U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562897A (en) * | 2022-03-09 | 2022-05-31 | 南通元兴智能科技有限公司 | Automatic polishing solution cooling system for polishing silicon carbide |
| CN114562897B (en) * | 2022-03-09 | 2023-11-17 | 南通元兴智能科技有限公司 | Polishing liquid cooling automatic system for silicon carbide polishing |
| CN115042400A (en) * | 2022-08-01 | 2022-09-13 | 江苏食品药品职业技术学院 | Internal cooling device of injection mold |
| CN117966081A (en) * | 2024-03-28 | 2024-05-03 | 山西晋东南神话新材料有限公司 | Nitriding furnace |
| CN117966081B (en) * | 2024-03-28 | 2024-05-28 | 山西晋东南神话新材料有限公司 | Nitriding furnace |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |