CN214270978U - Waste heat recovery device for tempering furnace - Google Patents
Waste heat recovery device for tempering furnace Download PDFInfo
- Publication number
- CN214270978U CN214270978U CN202120225021.9U CN202120225021U CN214270978U CN 214270978 U CN214270978 U CN 214270978U CN 202120225021 U CN202120225021 U CN 202120225021U CN 214270978 U CN214270978 U CN 214270978U
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- heat exchange
- box
- exchange box
- heat
- cylinder
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- 238000005496 tempering Methods 0.000 title claims abstract description 27
- 238000011084 recovery Methods 0.000 title claims abstract description 23
- 239000002918 waste heat Substances 0.000 title claims abstract description 23
- 239000003517 fume Substances 0.000 claims abstract description 12
- 239000000779 smoke Substances 0.000 claims description 51
- 238000007789 sealing Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 21
- 239000003546 flue gas Substances 0.000 abstract description 21
- 238000007599 discharging Methods 0.000 abstract description 16
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 9
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 9
- 241001330002 Bambuseae Species 0.000 abstract description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 9
- 239000011425 bamboo Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 241000208125 Nicotiana Species 0.000 description 4
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a waste heat recovery device for tempering furnace, including the case of discharging fume, it is equipped with the heat exchanger section of thick bamboo to discharge fume roof portion intercommunication, and the heat exchanger section of thick bamboo top is equipped with sealed lid, sealed lid top intercommunication is equipped with the pipe of discharging fume, inside first heat exchange box, second heat exchange box and the third heat exchange box of being equipped with respectively of heat exchanger section of thick bamboo, and the intercommunication is equipped with the multiunit heat exchange tube between first heat exchange box, second heat exchange box and the third heat exchange box, first heat exchange box communicates respectively with third heat exchange box surface and is equipped with outlet pipe and inlet tube. The utility model discloses in discharge the flue gas to between every heat transfer box through the exhaust groove for the high temperature flue gas carries out the class and contacts with heat exchange tube and heat transfer box, and independent heat transfer space exists and exhaust groove in order to pass through the time that can improve the high temperature flue gas and stop the existence with the high temperature flue gas, prevents that the heat source from taking place extravagantly, and then makes whole heat exchange effect when using compare prior art better more effectively, and efficiency is higher.
Description
Technical Field
The utility model relates to a tempering furnace technical field especially relates to a waste heat recovery device for tempering furnace.
Background
The tempering furnace is used for tempering common metal parts in air and quenching, annealing and aging heat treatment of light alloy parts such as aluminum alloy die castings, pistons, aluminum plates and the like. The shell is formed by welding a steel plate and a section steel, the trolley is welded by the section steel and the steel plate, the trolley reduces heat radiation and convection loss through soft contact with a furnace lining and a sand sealing mechanism, and the sealing performance of the furnace body is effectively guaranteed. Since the annealing temperature is below the critical point of the phase change, the strength of the material is not related to the cooling rate.
When the tempering furnace works, because the internal temperature is high, the temperature of gas discharged from the smoke outlet is high, the gas has high heat, the direct discharge of the gas can cause great heat waste, and the energy utilization efficiency is low. The patent of publication No. CN211367662U discloses a waste heat recovery tempering furnace, including the furnace body and go out the tobacco pipe, be provided with a smoke discharging box on the furnace body, it extends to go out the tobacco pipe the inside of smoke discharging box, one side of the incasement wall of discharging fume transversely is provided with a baffle, and the baffle will the inner chamber of discharging fume the case is separated for one of intercommunication goes up cavity and cavity once, and the upper surface of the case of discharging fume is link up there is a heat exchange tube, be provided with mobile heat transfer liquid in the heat exchange tube, the heat exchange tube passes in proper order go up the cavity with cavity and link up to the outside of the case of discharging fume down.
Above-mentioned patent high temperature flue gas enters into the inside unable hierarchical of case of discharging fume when using and carries out even contact with the heat exchange tube for unable better heat transfer that carries on, and then reduced heat exchange efficiency.
Therefore, a waste heat recovery device for a tempering furnace is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a waste heat recovery device for a tempering furnace.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a waste heat recovery device for tempering furnace, includes the case of discharging fume, it is equipped with the heat exchanger section of thick bamboo to discharge fume the roof portion intercommunication, and the heat exchanger section of thick bamboo top is equipped with sealed lid, sealed lid top intercommunication is equipped with the pipe of discharging fume, the inside first heat transfer box, second heat transfer box and the third heat transfer box of being equipped with respectively of heat exchanger section of thick bamboo, and the intercommunication is equipped with the multiunit heat exchange tube between first heat transfer box, second heat transfer box and the third heat transfer box, first heat transfer box communicates respectively with third heat transfer box surface and is equipped with outlet pipe and inlet tube, the heat exchanger section of thick bamboo inner wall all is equipped with multiunit exhaust groove with first heat transfer box, second heat transfer box and third heat transfer box surface phase connection position, the inside top of heat exchanger section of thick bamboo is equipped with the cigarette board that passes through, the upper portion on heat exchanger section of thick bamboo surface is equipped with multiunit and ferries the tobacco pipe.
Preferably, a thread groove is formed in the top of the heat exchange cylinder, a connecting ring is arranged at the bottom of the sealing cover and is connected with the inside of the thread groove through threads, and the sealing cover is connected with the top of the heat exchange cylinder through the matching of the connecting ring and the thread groove.
Preferably, the first heat exchange box, the second heat exchange box and the third heat exchange box are arranged in the heat exchange cylinder from bottom to top at equal intervals.
Preferably, one end of the water outlet pipe and one end of the water inlet pipe, which are far away from the first heat exchange box and the third heat exchange box, both penetrate through the heat exchange cylinder.
Preferably, the plurality of groups of smoke discharge grooves are distributed in the inner wall of the heat exchange cylinder in an equidistant annular mode by taking the first heat exchange box, the second heat exchange box and the third heat exchange box as midpoints.
Preferably, the surface of the smoke permeation plate is uniformly provided with a plurality of groups of smoke permeation through holes, and the smoke permeation plate is positioned at the upper part of the third heat exchange box.
Preferably, the plurality of groups of the smoke crossing pipes are distributed on the surface of the heat exchange cylinder in an annular and equidistant mode by taking the heat exchange cylinder as a middle point, the smoke crossing pipes are in a vertical concave shape, two ends of each smoke crossing pipe are communicated with the inside of the heat exchange cylinder, and the communicating positions of the smoke crossing pipes and the inside of the heat exchange cylinder are respectively positioned at the upper position and the lower position of the third heat exchange box.
Preferably, the multiple groups of heat exchange tubes are distributed in an equidistant annular shape among the first heat exchange box, the second heat exchange box and the third heat exchange box.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses better heat transfer effect has when using, it is concrete, through the three heat transfer box that sets up and the multiunit heat exchange tube that is linked together with three heat transfer box, in order to reach the homogeneity that has the contact area and the contact that improve heat transfer liquid and high temperature flue gas, make first heat transfer box and second heat transfer box and third heat transfer box and second heat transfer box between all have independent heat transfer space through three heat transfer box simultaneously, discharge the flue gas to between every heat transfer box through the exhaust groove, make the high temperature flue gas divide the stratum to contact with heat exchange tube and heat transfer box, independent heat transfer space exists and exhaust groove in order to provide the time that the high temperature flue gas stops the existence through improving high temperature flue gas, prevent that the heat source from taking place extravagantly, and then make whole heat transfer effect when using compare prior art better more effective, efficiency is higher.
Drawings
Fig. 1 is a schematic view of the overall structure of a waste heat recovery device for a tempering furnace according to the present invention;
FIG. 2 is a schematic view of the overall structure of a waste heat recovery device for a tempering furnace according to the present invention;
FIG. 3 is a top exploded view of a heat exchange tube in the waste heat recovery device for a tempering furnace according to the present invention;
fig. 4 is a cut-away view of a heat exchange tube in the waste heat recovery device for the tempering furnace.
In the figure: 1. a smoke exhaust box; 2. a thread groove; 3. a connecting ring; 4. a smoke permeable panel; 5. a heat exchange tube; 6. a sealing cover; 7. a smoke exhaust pipe; 8. a water outlet pipe; 9. a water inlet pipe; 10. a smoke exhaust groove; 11. a first heat exchange box; 12. coating a tobacco pipe; 13. a second heat exchange box; 14. a third heat exchange box; 15. a heat exchange tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a waste heat recovery device for tempering furnace, exhaust box 1 is a sealed box body with a side cover, the side cover is drawn in the figure, the top of exhaust box 1 is communicated with a heat exchange cylinder 5, exhaust box 1 and heat exchange cylinder 5 are both internally provided with high-temperature flue gas, the top of heat exchange cylinder 5 is provided with a sealing cover 6, sealing cover 6 is used for sealing the top of heat exchange cylinder 5, the top of heat exchange cylinder 5 is provided with a thread groove 2, the bottom of sealing cover 6 is provided with a connecting ring 3, connecting ring 3 is internally connected with thread groove 2 through threads, sealing cover 6 is connected with the top of heat exchange cylinder 5 through the matching of connecting ring 3 and thread groove 2, and thus the sealing cover 6 and heat exchange cylinder 5 are convenient to detach, the top of sealing cover 6 is communicated with a flue gas discharge pipe 7, and flue gas discharge pipe 7 is used for discharging flue gas at last.
Referring to fig. 1-4, a waste heat recovery device for a tempering furnace, a first heat exchange box 11, a second heat exchange box 13 and a third heat exchange box 14 are respectively arranged in a heat exchange cylinder 5, the first heat exchange box 11, the second heat exchange box 13 and the third heat exchange box 14 are arranged at equal intervals from bottom to top in the heat exchange cylinder 5, independent heat exchange spaces are respectively arranged between the first heat exchange box 11 and the second heat exchange box 13 as well as between the third heat exchange box 14 and the second heat exchange box 13, a plurality of groups of heat exchange tubes 15 are communicated among the first heat exchange box 11, the second heat exchange box 13 and the third heat exchange box 14, the plurality of groups of heat exchange tubes 15 are distributed in an equidistant annular shape among the first heat exchange box 11, the second heat exchange box 13 and the third heat exchange box 14, the heat exchange tubes 15 are positioned in the heat exchange spaces among the heat exchange boxes, so as to be in better uniform contact with high-temperature flue gas, the three heat exchange boxes are filled with heat exchange liquid in the heat exchange tubes 15, the surfaces of the first heat exchange box 11 and the third heat exchange box 14 are respectively communicated with a water inlet pipe 8 and a water outlet pipe 9, the water outlet pipe 8 and the water inlet pipe 9 decibel are connected with an external connecting pipe through a quick connector, so that heat exchange liquid and heat exchange liquid after heat exchange are conveniently fed, and one ends of the water outlet pipe 8 and the water inlet pipe 9, which are far away from the first heat exchange box 11 and the third heat exchange box 14, are both penetrated to the outside of the heat exchange cylinder 5.
Referring to fig. 1-4, a waste heat recovery device for a tempering furnace, a plurality of sets of smoke discharging grooves 10 are arranged at the connecting positions of the inner wall of a heat exchange cylinder 5 and the surfaces of a first heat exchange box 11, a second heat exchange box 13 and a third heat exchange box 14, the smoke discharging grooves 10 are used for orderly rising of high-temperature smoke, the residence time of the high-temperature smoke can be prolonged by the independent heat exchange space and the smoke discharging grooves 10, the high-temperature smoke is prevented from rapidly rising and being discharged, the heat exchange effect is improved, the smoke discharging grooves 10 are distributed in an equidistant annular shape by taking the first heat exchange box 11, the second heat exchange box 13 and the third heat exchange box 14 as the middle points at the inner wall of the heat exchange cylinder 5, a smoke permeable plate 4 is arranged at the top end inside the heat exchange cylinder 5, the smoke permeable plate 4 can block the smoke and prevent the smoke from being discharged at one time, a plurality of smoke permeable through holes are uniformly arranged on the surface of the smoke permeable plate 4, the smoke permeable plate 4 is positioned at the upper part of the third heat exchange box 14, a plurality of smoke permeable pipes 12 are arranged on the upper part of the surface of the heat exchange cylinder 5, the multiple groups of cross-over smoke pipes 12 are distributed on the surface of the heat exchange cylinder 5 in an annular and equidistant manner by taking the heat exchange cylinder 5 as a midpoint, the cross-over smoke pipes 12 are in a vertical concave shape, two ends of each cross-over smoke pipe 12 are communicated with the inside of the heat exchange cylinder 5, the positions where the cross-over smoke pipes 12 are communicated with the inside of the heat exchange cylinder 5 are respectively positioned at the upper position and the lower position of the third heat exchange box 14, and the cross-over smoke pipes 12 are convenient for the smoke between the second heat exchange box 13 and the third heat exchange box 14 to be transited into the space at the top of the third heat exchange box 14.
The working principle is that when the device is used, heat exchange liquid is injected into the third heat exchange box 14 through the water inlet pipe 9, then the heat exchange pipe 15 between the third heat exchange box 14 and the second heat exchange box 13 enters the second heat exchange box 13, then the heat exchange pipe 15 between the second heat exchange box 13 and the first heat exchange box 11 enters the first heat exchange box 11 (the water outlet pipe 8 is opened when the device is used), high-temperature flue gas enters the bottom inside the heat exchange tube 5 through the smoke exhaust box 1 to exchange heat with the first heat exchange box 11, then the high-temperature flue gas enters the space between the first heat exchange box 11 and the second heat exchange box 13 through the smoke exhaust groove 10 on the outer side of the first heat exchange box 11 on the inner wall of the heat exchange tube 5 to exchange heat with the first heat exchange box 11, the second heat exchange box 13, the third heat exchange box 14 and the heat exchange pipe 15 through the smoke exhaust groove 10 on the outer side of the second heat exchange box 13 on the inner wall of the heat exchange tube 5, then, the high-temperature flue gas enters the space between the smoke permeable plate 4 and the third heat exchange box 14 from the space between the third heat exchange box 14 and the second heat exchange box 13 through the transition smoke pipe 12, the flue gas is blocked by the smoke permeable plate 4 to generate continuous short pause (new flue gas enters the existing extrusion to be discharged), the heat exchange is carried out on the top of the third heat exchange box 14, and then the flue gas is discharged through the smoke permeable through holes on the surface of the smoke permeable plate 4 and then is discharged through the smoke discharge pipe 7.
The utility model discloses in, above the mounting means, the connected mode or the mode that sets up of all parts are common mechanical system to the concrete structure, model and the coefficient index of all parts thereof are its from taking the technique, as long as can reach all can implementing of its beneficial effect, so do not add at much and give unnecessary detail.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
In the present invention, unless otherwise specified, the terms "up, down, left, right, front, back, inside, outside, vertical and horizontal" and the like used in the terms refer to the orientation of the terms in the conventional usage, or are colloquially understood by those skilled in the art, and are not to be construed as limiting the terms, and the terms "first", "second", and "third" do not refer to a specific number or order and are used merely for name differentiation, and the terms "include", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (8)
1. A waste heat recovery device for a tempering furnace comprises a smoke exhaust box (1) and is characterized in that the top of the smoke exhaust box (1) is communicated with a heat exchange cylinder (5), the top of the heat exchange cylinder (5) is provided with a sealing cover (6), the top of the sealing cover (6) is communicated with a smoke exhaust pipe (7), a first heat exchange box (11), a second heat exchange box (13) and a third heat exchange box (14) are respectively arranged in the heat exchange cylinder (5), a plurality of groups of heat exchange pipes (15) are respectively communicated among the first heat exchange box (11), the second heat exchange box (13) and the third heat exchange box (14), a water outlet pipe (8) and a water inlet pipe (9) are respectively communicated between the first heat exchange box (11) and the third heat exchange box (14), a plurality of smoke exhaust grooves (10) are respectively arranged at the positions where the inner wall of the heat exchange cylinder (5) is connected with the surfaces of the first heat exchange box (11), the second heat exchange box (13) and the third heat exchange box (14), the top end in the heat exchange cylinder (5) is provided with a smoke permeable plate (4), and the upper part of the surface of the heat exchange cylinder (5) is provided with a plurality of transitional smoke pipes (12).
2. The waste heat recovery device for the tempering furnace according to claim 1, wherein a thread groove (2) is formed in the top of the heat exchange cylinder (5), a connecting ring (3) is arranged at the bottom of the sealing cover (6), the connecting ring (3) is connected with the inside of the thread groove (2) through threads, and the sealing cover (6) is connected with the top of the heat exchange cylinder (5) through the matching of the connecting ring (3) and the thread groove (2).
3. The waste heat recovery device for the tempering furnace according to claim 1, wherein the first heat exchange box (11), the second heat exchange box (13) and the third heat exchange box (14) are arranged in the heat exchange cylinder (5) from bottom to top at equal intervals.
4. The waste heat recovery device for the tempering furnace according to claim 1, wherein one ends of the water outlet pipe (8) and the water inlet pipe (9) far away from the first heat exchange box (11) and the third heat exchange box (14) penetrate through the heat exchange cylinder (5).
5. The waste heat recovery device for the tempering furnace according to claim 1, wherein a plurality of groups of the fume exhaust grooves (10) are distributed in an equidistant annular shape on the inner wall of the heat exchange cylinder (5) by taking the first heat exchange box (11), the second heat exchange box (13) and the third heat exchange box (14) as midpoints.
6. The waste heat recovery device for the tempering furnace according to claim 1, wherein a plurality of groups of smoke-permeable through holes are uniformly formed in the surface of the smoke-permeable plate (4), and the smoke-permeable plate (4) is positioned at the upper part of the third heat exchange box (14).
7. The waste heat recovery device for the tempering furnace according to claim 1, wherein a plurality of groups of the fire-crossing pipes (12) are distributed on the surface of the heat exchange cylinder (5) in an annular and equidistant manner with the heat exchange cylinder (5) as a midpoint, the fire-crossing pipes (12) are in a vertical concave shape, two ends of the fire-crossing pipes (12) are communicated with the inside of the heat exchange cylinder (5), and the positions where the fire-crossing pipes (12) are communicated with the inside of the heat exchange cylinder (5) are respectively located at the upper and lower positions of the third heat exchange box (14).
8. The waste heat recovery device for the tempering furnace according to claim 1, wherein a plurality of groups of heat exchange tubes (15) are distributed in an equidistant annular shape among the first heat exchange box (11), the second heat exchange box (13) and the third heat exchange box (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120225021.9U CN214270978U (en) | 2021-01-27 | 2021-01-27 | Waste heat recovery device for tempering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120225021.9U CN214270978U (en) | 2021-01-27 | 2021-01-27 | Waste heat recovery device for tempering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214270978U true CN214270978U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120225021.9U Expired - Fee Related CN214270978U (en) | 2021-01-27 | 2021-01-27 | Waste heat recovery device for tempering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214270978U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909898A (en) * | 2022-05-31 | 2022-08-16 | 启东市芯成新材料科技有限公司 | Latex powder drying tower waste heat recovery device |
-
2021
- 2021-01-27 CN CN202120225021.9U patent/CN214270978U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909898A (en) * | 2022-05-31 | 2022-08-16 | 启东市芯成新材料科技有限公司 | Latex powder drying tower waste heat recovery device |
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Granted publication date: 20210924 |