CN112318803A - PVC tubular product production is with calendering former - Google Patents
PVC tubular product production is with calendering former Download PDFInfo
- Publication number
- CN112318803A CN112318803A CN202011292674.5A CN202011292674A CN112318803A CN 112318803 A CN112318803 A CN 112318803A CN 202011292674 A CN202011292674 A CN 202011292674A CN 112318803 A CN112318803 A CN 112318803A
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- Prior art keywords
- machine body
- waste heat
- calendering
- heating
- wall
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- 238000003490 calendering Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 89
- 239000002918 waste heat Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 239000003546 flue gas Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 14
- 239000004800 polyvinyl chloride Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the field of calendering equipment, in particular to calendering and molding equipment for producing a PVC pipe, which comprises a frame, the frame is connected with a processing component for rolling raw materials, one side of the frame is provided with an external component for improving the energy utilization rate, one end of the external component is connected with a heat energy component for recovering and utilizing waste heat, the invention can fully utilize the heat emitted by the first heating roller and the second heating roller through the arrangement of the external component, improves the utilization efficiency of energy, the external component can reduce the influence of impurities in the outside air on the rolled material in the processing engineering, improves the processing effect, the heat energy component and the waste heat box are arranged to recycle the surplus heat in the external component, meanwhile, the temperature in a workshop is reduced, the air in the workshop is cleaner through the arrangement of the filter element, and the calendering material for the original PVC pipe can generate adverse effects on the air quality more or less in the heating process.
Description
Technical Field
The invention relates to the field of calendering equipment, in particular to calendering and forming equipment for producing a PVC (polyvinyl chloride) pipe.
Background
The calender is arranged according to a certain form by two or more than two rollers, can be divided into cold pressing and hot pressing, the calender can be divided into two rollers according to roller figure, three-roller, four-roller and five-roller calender etc. can be divided into L type, T type, F type, Z type and S type etc. according to the arrangement mode of roller, ordinary calender mainly comprises roller, frame, roll spacing adjusting device, roll temperature adjusting device, transmission device, lubricating system, control system and roller dismounting device etc. besides having ordinary calender main spare part and device, the precision calender has increased the device of guaranteeing the calendering precision, such as pressurize system, bearing clearance adjusting system etc..
There are the following problems:
need heat the pvc material in order to keep plasticity in the calender processing, the calender is mostly open design, and the unable make full use of in-process heat just improves indoor temperature, makes the staff produce discomfort, makes the impurity among the raw and other materials adsorbed air reduce the shaping quality during the heating easily.
Disclosure of Invention
The invention aims to provide calendering and forming equipment for producing a PVC pipe, which aims to solve the problems in the background technology.
In order to realize above-mentioned purpose, a PVC tubular product production is with calendering former, includes the frame, the frame is connected with the processing subassembly that is used for calendering raw and other materials, one side of frame is provided with the external subassembly that is used for improving energy utilization, the heat energy subassembly of retrieving and utilizing the waste heat is connected to the one end of external subassembly.
Preferably: the processing subassembly includes compression roller, motor and cushion, frame inner wall both ends all run through to rotate and are connected with two groups of compression rollers, the outer wall that the one end of compression roller stretched out the frame rotates and is connected with the motor, the lower extreme fixedly connected with cushion of motor has made things convenient for device calendering processing through setting up of processing subassembly.
Preferably: the external component comprises a lower machine body, an upper machine body, a heating chamber, a first heating roller, a second heating roller, a first conduction belt, a second motor and a third motor, the lower machine body is positioned at one side of the machine frame, the lower end of the lower machine body is contacted with the ground, the upper end of the lower machine body is inserted with the upper machine body, a heating chamber is arranged in a gap between the lower machine body and the upper machine body, the inner wall of the heating chamber is rotationally connected with two groups of first heating rollers and three groups of second heating rollers, one end of each first heating roller extends out of the outer wall of the heating chamber and is rotatably connected with a first conduction belt, one end of each second heating roller extends out of the outer wall of the heating chamber and is rotatably connected with a second conduction belt, one end of the first heating roller is connected with a second motor, one end of the second heating roller is connected with a third motor, and the energy utilization efficiency of the device can be improved through the arrangement of the external component.
Preferably: the heat energy subassembly includes suction hole, wind channel, tuber pipe, fan and waste heat case, both ends all are provided with the suction hole about the inner wall in heating chamber, the inside of organism and last organism is provided with the wind channel that is linked together down, the tuber pipe that the outer wall fixedly connected with and the wind channel of organism are linked together down, the upper end fixedly connected with fan of tuber pipe, the one end fixedly connected with waste heat case of fan can give off the waste heat recovery in the air through setting up of heat energy subassembly and recycle.
Preferably: the waste heat case still includes heating chamber, spiral pipe, tap and flue gas exit tube, the waste heat case sets up the inside at the waste heat case, the inside fixedly connected with spiral pipe of waste heat case, the outer wall bottom fixedly connected with tap of waste heat case, the fixed through connection in top of waste heat case has the flue gas exit tube, the inside grafting of flue gas exit tube has the filter core, can pass through the spiral pipe conduction with the heat in the high temperature flue gas through the waste heat case and give its inside liquid, and the liquid after the heating can regard as domestic water for the bath water use.
Preferably: two sets of the compression roller is located the teeth of a cogwheel of looks adaptation in the one end in the frame outside all, the calendering orientation of two sets of compression rollers is the same, makes the operation of structure more stable.
Preferably: the upper end face of the lower machine body is fixedly connected with an inserting block matched with the lower end face of the upper machine body in size, the heating cavity is rectangular, and rectangular material conveying ports are formed in the two ends, facing the rack, of the lower machine body and the upper machine body, so that PVC materials can conveniently enter and exit from the interior of the external component.
Preferably: the outer layers of the lower machine body and the upper machine body are made of metal with a heat insulation effect, the lengths of the first heating roller and the second heating roller extending out of the outer wall of the heating chamber are different, and the sizes of the first heating roller and the second heating roller are matched with the sizes of the first conduction belt and the second conduction belt, so that the device is more stable in operation.
Preferably: the shape of the air suction holes is circular, the air suction holes are uniformly distributed on the upper surface and the lower surface of the inner wall of the heating chamber, and hot air in the heating chamber is absorbed through the air suction holes.
Preferably: the shape of waste heat case is circular, the fixed intercommunication of the bottom of spiral pipe and the one end of tuber pipe, the fixed intercommunication of the upper end of spiral pipe and the lower extreme of flue gas exit tube, the up end of waste heat case still is provided with into the water hole, has improved the utilization efficiency of the energy, makes the use of device more simple and convenient.
Preferably: the inner wall of heating chamber and the outer wall material of spiral pipe are the metal that is difficult for the corrosion, the spiral pipe has good heat conductivity, makes the operation of device more stable.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the heat emitted by the first heating roller and the second heating roller can be fully utilized through the arrangement of the external component, so that the utilization efficiency of energy is improved.
2. The invention can reduce the influence of impurities in the outside air on the PVC material in the processing engineering through the arrangement of the external component, and improves the processing effect.
3. According to the invention, the arrangement of the heat energy component and the waste heat tank can recycle the surplus heat in the external component, the heated water can be used as domestic water such as bath water, and the temperature in a workshop is reduced.
4. The filter element is arranged, so that air in a workshop is cleaner, and the calendering material for the original PVC pipe can have adverse effects on air quality more or less in the heating process.
Drawings
FIG. 1 is a side partial schematic view of the present invention;
FIG. 2 is a schematic view of the internal structure of the external component according to the present invention;
FIG. 3 is a schematic view of a thermal assembly according to the present invention;
FIG. 4 is a schematic view showing the driving relationship of the heating rollers in the external assembly according to the present invention;
FIG. 5 is a schematic front view of the housing of the present invention;
FIG. 6 is a schematic diagram of the movement path of the pvc material of the present invention in the heating chamber.
In the figure: 1. a frame; 2. processing the assembly; 3. an external component; 4. a thermal energy assembly; 5. a compression roller; 6. a motor; 7. cushion blocks; 8. a lower machine body; 9. mounting the machine body; 10. a heating cavity; 11. a first heating roller; 12. a second heating roller; 13. a first conductive belt; 14. a second conductive strip; 15. a second motor; 16. a third motor; 17. a suction hole; 18. an air duct; 19. an air duct; 20. a fan; 21. a waste heat box; 22. a heating cavity; 23. a spiral tube; 24. a faucet; 25. a flue gas outlet pipe; 26. and (3) a filter element.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a calendering and molding device for producing a pvc pipe, which is shown in the figure, includes a frame 1, the frame 1 is connected to a processing assembly 2 for calendering raw materials, an external assembly 3 for improving energy utilization rate is disposed on one side of the frame 1, and one end of the external assembly 3 is connected to a heat energy assembly 4 for recovering and utilizing waste heat.
The processing component 2 comprises press rolls 5, a motor 6 and a cushion block 7, two groups of press rolls 5 are rotatably connected to two ends of the inner wall of the frame 1 in a penetrating manner, one end of each press roll 5 extends out of the outer wall of the frame 1 and is rotatably connected with the motor 6, the lower end of the motor 6 is fixedly connected with the cushion block 7, the external component 3 comprises a lower machine body 8, an upper machine body 9, a heating chamber 10, a first heating roll 11, a second heating roll 12, a first conduction belt 13, a second conduction belt 14, a second motor 15 and a third motor 16, the lower machine body 8 is positioned at one side of the frame 1, the lower end of the lower machine body 8 is contacted with the ground, the upper machine body 9 is inserted at the upper end of the lower machine body 8, the heating chamber 10 is arranged in a gap between the lower machine body 8 and the upper machine body 9, two groups of first heating rolls 11 and three groups of second heating rolls 12, one end of the second heating roller 12 extends out of the outer wall of the heating chamber 10 and is rotatably connected with a second conduction belt 14, one end of the first heating roller 11 is connected with a second motor 15, one end of the second heating roller 12 is connected with a third motor 16, the heat energy component 4 comprises an air suction hole 17, an air duct 18, an air duct 19, a fan 20 and a waste heat box 21, the upper end and the lower end of the inner wall of the heating chamber 10 are respectively provided with the air suction hole 17, the lower machine body 8 and the upper machine body 9 are internally provided with the air duct 18 which are communicated, the outer wall of the lower machine body 8 is fixedly connected with the air duct 19 which is communicated with the air duct 18, the upper end of the air duct 19 is fixedly connected with the fan 20, one end of the fan 20 is fixedly connected with the waste heat box 21, the waste heat box 21 further comprises a heating cavity 22, a spiral pipe 23, a water tap 24 and a smoke outlet pipe 25, the waste heat box 21, the top of the waste heat box 21 is fixedly connected with a flue gas outlet pipe 25 in a penetrating way, and a filter element 26 is inserted in the flue gas outlet pipe 25.
Wherein: the heating chamber 10 is also internally provided with a temperature sensor, the outer wall of the upper machine body 9 is provided with a related display screen, so that the temperature in the device can be conveniently observed by workers, the heating modes of the first heating roller 11 and the second heating roller 12 are built-in resistance conduction heating, and the outer end face of the filter element 26 is provided with a shell matched with the outer wall of the smoke outlet pipe 25 in size.
Working principle and using process: when the PVC material heating device is used, PVC materials are plasticized and then are guided to the first heating roller 11 and the second heating roller 12 in advance through the rectangular material conveying openings to be heated, the phenomena of non-stick roller, uneven plasticization and the like are avoided, the first heating roller 11 and the second heating roller 12 are powered by the second motor 15 and the third motor 16, the first conduction belt 13 and the second conduction belt 14 enable two groups of heating rollers which are not steered to rotate so that the PVC materials move in a curve on the surface of the PVC materials to be heated uniformly, the PVC materials are subjected to calendaring processing through the two groups of compression rollers 5, the motor 6 provides power in the process, when the PVC materials are heated, a relatively narrow space is formed through the lower machine body 8 and the upper machine body 9 to prevent heat from being dispersed, the heating effect of the first heating roller 11 and the second heating roller 12 is improved, the fan duct 20 can pump hot air inside the heating chamber 10 through the air suction holes 17 and the air holes 18, the phenomenon that the internal temperature of the heating chamber 10 is too high to influence, the setting through spiral pipe 23 can give the water in the heating chamber 22 with the heat conduction in the hot-air of taking out, and helical structure has prolonged spiral pipe 23 and water heat conduction area, and the setting through filter core 26 adsorbs the harmful substance in the waste gas, has improved the air quality, and more environmental protection.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a PVC tubular product production is with calendering former, includes frame (1), its characterized in that: frame (1) is connected with processing subassembly (2) that are used for calendering raw and other materials, one side of frame (1) is provided with external subassembly (3) that are used for improving energy utilization, the heat energy subassembly (4) of retrieving and utilizing the waste heat is connected to the one end of external subassembly (3).
2. The calendering and molding equipment for producing the pvc pipe according to claim 1, wherein: processing subassembly (2) are including compression roller (5), motor (6) and cushion (7), frame (1) inner wall both ends all run through to rotate and are connected with two sets of compression roller (5), the outer wall that the one end of compression roller (5) stretched out frame (1) rotates and is connected with motor (6), the lower extreme fixedly connected with cushion (7) of motor (6).
3. The calendering and molding equipment for producing the pvc pipe according to claim 1, wherein: the external component (3) comprises a lower machine body (8), an upper machine body (9), a heating chamber (10), a first heating roller (11), a second heating roller (12), a first conduction belt (13), a second conduction belt (14), a second motor (15) and a third motor (16), wherein the lower machine body (8) is positioned on one side of the rack (1), the lower end of the lower machine body (8) is in contact with the ground, the upper machine body (9) is inserted into the upper end of the lower machine body (8), the heating chamber (10) is arranged in a gap between the lower machine body (8) and the upper machine body (9), the inner wall of the heating chamber (10) is rotatably connected with two groups of first heating rollers (11) and three groups of second heating rollers (12), one end of each first heating roller (11) extends out of the outer wall of the heating chamber (10) and is rotatably connected with the first conduction belt (13), one end of each second heating roller (12) extends out of the outer wall of the heating chamber (10) and is rotatably connected, one end of the first heating roller (11) is connected with a second motor (15), and one end of the second heating roller (12) is connected with a third motor (16).
4. The calendering and molding equipment for producing the pvc pipe according to claim 1, wherein: the heat energy component (4) comprises an air suction hole (17), an air duct (18), an air pipe (19), a fan (20) and a waste heat box (21), the air suction hole (17) is formed in each of the upper end and the lower end of the inner wall of the heating chamber (10), the air ducts (18) communicated with each other are formed in the lower machine body (8) and the upper machine body (9), the air pipe (19) communicated with the air duct (18) is fixedly connected to the outer wall of the lower machine body (8), the fan (20) is fixedly connected to the upper end of the air pipe (19), and the waste heat box (21) is fixedly connected to one end of the fan (20).
5. The calendering and molding device for producing the pvc pipe according to claim 4, wherein: waste heat case (21) still includes heating chamber (22), spiral pipe (23), tap (24) and flue gas exit tube (25), waste heat case (21) set up the inside at waste heat case (21), the inside fixedly connected with spiral pipe (23) of waste heat case (21), the outer wall bottom fixedly connected with tap (24) of waste heat case (21), the fixed through connection in top of waste heat case (21) has flue gas exit tube (25), the inside of flue gas exit tube (25) is pegged graft and is had filter core (26).
6. The calendering and molding device for producing the pvc pipe according to claim 2, wherein: two sets of compression roller (5) are located the one end in frame (1) outside and all are provided with the teeth of a cogwheel of looks adaptation, the calendering orientation of two sets of compression roller (5) is the same.
7. The calender forming equipment for producing the pvc pipe as claimed in claim 3, wherein: the upper end face of the lower machine body (8) is fixedly connected with an inserting block matched with the lower end face of the upper machine body (9) in size, the heating chamber (10) is rectangular, and rectangular material conveying ports are formed in the two ends, facing the rack (1), of the lower machine body (8) and the upper machine body (9).
8. The calender forming equipment for producing the pvc pipe as claimed in claim 3, wherein: the outer layers of the lower machine body (8) and the upper machine body (9) are made of metal with a heat insulation effect, the lengths of the first heating roller (11) and the second heating roller (12) extending out of the outer wall of the heating chamber (10) are different, and the sizes of the first heating roller (11) and the second heating roller (12) are matched with the sizes of the first conduction belt (13) and the second conduction belt (14).
9. The calender forming equipment for producing the pvc pipe as claimed in claim 4, wherein: the shape of the air suction holes (17) is circular, and the air suction holes (17) are uniformly distributed on the upper surface and the lower surface of the inner wall of the heating chamber (10).
10. The calender forming equipment for producing the pvc pipe as claimed in claim 5, wherein: the shape of waste heat case (21) is circular, the fixed intercommunication of the bottom of spiral pipe (23) and the one end of tuber pipe (19), the fixed intercommunication of the upper end of spiral pipe (23) and the lower extreme of flue gas exit tube (25), the up end of waste heat case (21) still is provided with into the water hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011292674.5A CN112318803A (en) | 2020-11-18 | 2020-11-18 | PVC tubular product production is with calendering former |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011292674.5A CN112318803A (en) | 2020-11-18 | 2020-11-18 | PVC tubular product production is with calendering former |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112318803A true CN112318803A (en) | 2021-02-05 |
Family
ID=74322656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011292674.5A Pending CN112318803A (en) | 2020-11-18 | 2020-11-18 | PVC tubular product production is with calendering former |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112318803A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207778413U (en) * | 2017-12-01 | 2018-08-28 | 西安市永鑫科技有限公司 | A kind of dust-extraction unit of thermal power generation automatically reclaiming fume afterheat |
| CN209987267U (en) * | 2019-05-14 | 2020-01-24 | 洪灵坪 | Adjustable efficient rubber calender |
| CN211307100U (en) * | 2019-12-10 | 2020-08-21 | 江西多盛新材料科技有限公司 | KOP membrane production heating device |
-
2020
- 2020-11-18 CN CN202011292674.5A patent/CN112318803A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207778413U (en) * | 2017-12-01 | 2018-08-28 | 西安市永鑫科技有限公司 | A kind of dust-extraction unit of thermal power generation automatically reclaiming fume afterheat |
| CN209987267U (en) * | 2019-05-14 | 2020-01-24 | 洪灵坪 | Adjustable efficient rubber calender |
| CN211307100U (en) * | 2019-12-10 | 2020-08-21 | 江西多盛新材料科技有限公司 | KOP membrane production heating device |
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