CN216772279U - Be used for carborundum powder carbothermic reduction reaction intelligence temperature regulating device - Google Patents
Be used for carborundum powder carbothermic reduction reaction intelligence temperature regulating device Download PDFInfo
- Publication number
- CN216772279U CN216772279U CN202220654500.7U CN202220654500U CN216772279U CN 216772279 U CN216772279 U CN 216772279U CN 202220654500 U CN202220654500 U CN 202220654500U CN 216772279 U CN216772279 U CN 216772279U
- Authority
- CN
- China
- Prior art keywords
- protective outer
- outer cylinder
- temperature
- reaction
- reduction reaction
- 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
- 238000006722 reduction reaction Methods 0.000 title claims abstract description 19
- 229910010271 silicon carbide Inorganic materials 0.000 title claims description 6
- 239000000843 powder Substances 0.000 title claims description 4
- 230000001105 regulatory effect Effects 0.000 title claims description 4
- 230000001681 protective effect Effects 0.000 claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 18
- 244000309464 bull Species 0.000 claims description 14
- 238000004321 preservation Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011335 coal coke Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The utility model discloses an intelligent temperature control device for carbon thermal reduction reaction of silicon carbide powder, which comprises a protective outer cylinder and a controller arranged on the outer wall of the protective outer cylinder, wherein a temperature sensor for detecting the temperature in the protective outer cylinder and a fan for exhausting air from the interior of the protective outer cylinder are fixed on the outer wall of the protective outer cylinder, a plurality of heating pipes are uniformly distributed on the inner wall of the protective outer cylinder, the heating pipes are connected in parallel, the temperature sensor transmits the temperature detection result to the controller, when the temperature in the protective outer cylinder is detected to be overhigh, the controller starts the fan, the fan quickly exhausts heat flow in the protective outer cylinder to achieve the aim of cooling, meanwhile, the working number of the heating pipes can be reduced to achieve the aim of cooling, when the temperature is lower than a preset reaction temperature interval, the controller closes the fan and increases the working number of the heating pipes, the utility model can maintain the reaction temperature well by improving the reaction temperature.
Description
Technical Field
The utility model belongs to the related technical field of intelligent temperature control equipment, and particularly relates to an intelligent temperature control device for a carbothermic reduction reaction of silicon carbide powder.
Background
The carbothermic process is a process of oxidation-reduction reaction using inorganic carbon as a reducing agent at a certain temperature, for example, reduction of silicon carbide powder, which is an inorganic substance and has a chemical formula of SiC, and is produced by high-temperature smelting of raw materials such as quartz sand, petroleum coke (or coal coke), wood chips (salt is required for producing green silicon carbide) in a resistance furnace. The reaction requires relatively high temperatures, usually for the reduction of metal oxides, which are generally carried out at several hundred degrees celsius for the large-scale industrial production of many elemental elements such as iron, cobalt, nickel and copper, and the carbothermic reaction sometimes produces carbon monoxide and sometimes carbon dioxide. In the experimental process, because the carbothermic method needs higher temperature during the reaction, generally, the reactant is put into a test tube, and the test tube is put above an alcohol lamp for heating reaction, or the reactant is put into a tube furnace for reaction, in the two modes, the material cannot be uniformly heated during the reaction, the reaction temperature is inconvenient to be controlled in an interval, and the practical performance is lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an intelligent temperature control device for carbothermic reduction reaction of silicon carbide powder, which aims to solve the problems that materials cannot be uniformly heated in the carbothermic reduction reaction and the reaction temperature is inconvenient to control in intervals at present, which are provided by the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a be used for carborundum powder carbothermic reduction reaction intelligence temperature regulating device, including protection urceolus and install the controller on protection urceolus outer wall, the right-hand member fixedly connected with threaded sleeve of protection urceolus, the fixed temperature sensor who detects protection urceolus inside temperature that is provided with on the protection urceolus outer wall of threaded sleeve one side, the fixed fan that carries out bleeding to protection urceolus inside that is provided with on the protection urceolus outer wall of the other one side of threaded sleeve, threaded sleeve's internal thread is connected with the threaded rod, the left side of threaded rod is provided with the installation cover, the inside cover of installation cover is equipped with the reaction cylinder, the fixed slot of establishing is seted up to the reaction cylinder to the inside of installation cover.
Preferably, the right-hand member fixedly connected with carousel of threaded rod, the right side of carousel is provided with electric motor, fixedly connected with carries out the bracing piece that supports electric motor between electric motor and the carousel.
Preferably, the output shaft one end fixedly connected with bull stick of electric motor, the left end of bull stick runs through the inside and fixed connection in the installation cover of carousel and threaded rod in proper order, the inside of threaded rod is seted up and is supplied the bull stick to carry out the pivoted and rotate the groove.
Preferably, a heat preservation groove is formed in the protective outer barrel shell, the left end of the fan is connected with an air barrel, and the air barrel penetrates through the outer wall of the protective outer barrel and is communicated with the interior of the protective outer barrel.
Preferably, a plurality of heating pipes are uniformly distributed on the inner wall of the protective outer cylinder.
Preferably, there is no contact between the mounting sleeve and the threaded rod.
Compared with the prior art, the utility model provides an intelligent temperature control device for silicon carbide powder carbothermic reduction reaction, which has the following beneficial effects:
the temperature sensor for detecting the temperature inside the protective outer cylinder and the fan for exhausting air from the inside of the protective outer cylinder are fixed on the outer wall of the protective outer cylinder, the heating pipes are uniformly distributed on the inner wall of the protective outer cylinder, the heating pipes are connected in parallel, the temperature sensor transmits the temperature detection result to the controller, when the temperature inside the protective outer cylinder is detected to be too high, the controller starts the fan, the fan rapidly extracts heat flow inside the protective outer cylinder, the cooling purpose is achieved, meanwhile, the working number of the heating pipes can be reduced, the cooling purpose is achieved, when the temperature is lower than a preset reaction temperature range, the controller closes the fan, the working number of the heating pipes is increased, the reaction temperature can be well maintained, and the normal running of the reaction is ensured;
the electric motor is arranged on the right side of the rotary plate, one end of an output shaft of the electric motor is fixedly connected with the rotary rod, the left end of the rotary rod sequentially penetrates through the rotary plate and the threaded rod and is fixedly connected to the mounting sleeve, when the electric motor works, the electric motor drives the rotary rod to rotate through the output shaft of the electric motor, and the rotary rod drives the mounting sleeve to rotate, so that the reaction cylinder in the mounting sleeve can be driven to rotate, the interior of the reaction cylinder is uniformly heated, and the stability and the accuracy of reaction are greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:
FIG. 1 is a schematic plan view of an intelligent temperature control device for carbothermic reduction reaction of silicon carbide powder according to the present invention;
FIG. 2 is a schematic view of the internal structure of an intelligent temperature control device for the carbothermic reduction reaction of silicon carbide powder according to the present invention;
FIG. 3 is a schematic view of the internal structure of the threaded rod of the present invention;
in the figure: 1. a protective outer cylinder; 2. a controller; 3. a temperature sensor; 4. a threaded sleeve; 5. a turntable; 6. a rotating rod; 7. an electric motor; 8. a support bar; 9. a threaded rod; 91. a rotating groove; 10. a fan; 11. a reaction cylinder; 12. heating a tube; 13. a heat preservation groove; 14. installing a sleeve; 141. and fixing the grooves.
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. 1-3, the present invention provides a technical solution: the temperature-sensing device comprises a protective outer cylinder 1 and a controller 2 arranged on the outer wall of the protective outer cylinder 1, a threaded sleeve 4 is fixedly connected at the right end of the protective outer cylinder 1, a temperature sensor 3 for detecting the internal temperature of the protective outer cylinder 1 is fixedly arranged on the outer wall of the protective outer cylinder 1 on one side of the threaded sleeve 4, a fan 10 for exhausting air from the interior of the protective outer cylinder 1 is fixedly arranged on the outer wall of the protective outer cylinder 1 on the other side of the threaded sleeve 4, the fan 10 and the temperature sensor 3 are both electrically connected with the controller 2, the temperature sensor 3 can detect the internal temperature of the protective outer cylinder 1 and transmit the detection result to the controller 2, a display screen for displaying the temperature is arranged on the controller 2, the controller 2 controls the on-off of the fan 10, a threaded rod 9 is connected to the internal thread of the threaded sleeve 4, an installation sleeve 14 is arranged on the left side of the threaded rod 9, and the installation sleeve 14 is not in contact with the threaded rod 9, thus, the installation sleeve 14 can be smoothly rotated along with the rotating rod 6, the reaction barrel 11 is sleeved in the installation sleeve 14 and used for performing a carbon thermal reduction reaction, the fixing groove 141 sleeved on the reaction barrel 11 is formed in the installation sleeve 14, and the reaction barrel 11 can be installed in the installation sleeve 14 through the fixing groove 141.
The right-hand member fixedly connected with carousel 5 of threaded rod 9 conveniently rotates threaded rod 9 in threaded sleeve 4 through carousel 5, and the right side of carousel 5 is provided with electric motor 7, and fixedly connected with carries out the bracing piece 8 that supports electric motor 7 between electric motor 7 and the carousel 5, installs electric motor 7 on carousel 5 through bracing piece 8. Output shaft one end fixedly connected with bull stick 6 of electric motor 7, the left end of bull stick 6 runs through carousel 5 and threaded rod 9's inside and fixed connection in installation cover 14 in proper order, threaded rod 9's inside is seted up and is supplied bull stick 6 to carry out pivoted rotation groove 91, under the effect of rotation groove 91, bull stick 6 can rotate in threaded rod 9, start electric motor 7, electric motor 7 drives bull stick 6 through its output shaft and rotates, bull stick 6 drives installation cover 14 and rotates, thereby can drive the inside reaction cylinder 11 of installation cover 14 and rotate.
The inside heat preservation groove 13 of having seted up of 1 casing of protection urceolus can effectively avoid protecting the heat loss of 1 inside urceolus, avoids protecting 1 outer wall high in temperature of urceolus, and the left end of fan 10 is connected with the dryer, and the dryer runs through 1 outer wall of protection urceolus and is linked together with 1 inside of protection urceolus, when fan 10 starts, can take away the inside heat of 1 of protection urceolus rapidly.
The inner wall evenly distributed of protection urceolus 1 has a plurality of heating pipe 12, heating pipe 12 and 2 electric connection of controller, and a plurality of heating pipe 12 is connected through parallelly connected mode, and controller 2 can control opening and closing of heating pipe 12, heats up protection urceolus 1 inside through starting heating pipe 12.
The working principle and the using process of the utility model are as follows: when the device works, reaction materials are put into a reaction cylinder 11, the reaction cylinder 11 with the reaction materials is inserted into a mounting sleeve 14, the rotary disc 5 is rotated to drive a threaded rod 9 to rotate in a threaded sleeve 4, so that the mounting sleeve 14 drives the reaction cylinder 11 to move towards the interior of a protective outer cylinder 1, when the reaction cylinder 11 is immersed in the protective outer cylinder 1, a reaction temperature interval is preset through a controller 2, a heating pipe 12 is started, the heating pipe 12 heats the interior of the protective outer cylinder 1 to enable the temperature of the interior of the protective outer cylinder 1 to reach the preset reaction temperature interval, in the reaction process, a temperature sensor 3 can detect the temperature of the interior of the protective outer cylinder 1 and transmit the detection result to the controller 2, when the temperature of the interior of the protective outer cylinder 1 is detected to be too high, the controller 2 starts a fan 10, and the fan 10 rapidly extracts the interior of the protective outer cylinder 1, the purpose of cooling is achieved, meanwhile, the working number of the heating pipes 12 can be reduced, so that the purpose of cooling is achieved, when the temperature is lower than a preset reaction temperature range, the controller 2 closes the fan 10, and the working number of the heating pipes 12 is increased, so that the reaction temperature is increased. In the in-process of carrying out the reaction, being heated evenly in order to guarantee that reaction material, start electric motor 7, electric motor 7 drives bull stick 6 through its output shaft and rotates, and bull stick 6 drives installation cover 14 and rotates to can drive the inside reaction cylinder 11 of installation cover 14 and rotate, make 11 inside of reaction cylinder be heated evenly.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a be used for carborundum powder carbothermic reduction reaction intelligence temperature regulating device which characterized in that, it includes: a protective outer cylinder (1) and a controller (2) arranged on the outer wall of the protective outer cylinder (1), the right end of the protective outer cylinder (1) is fixedly connected with a threaded sleeve (4), the outer wall of the protective outer cylinder (1) at one side of the threaded sleeve (4) is fixedly provided with a temperature sensor (3) for detecting the internal temperature of the protective outer cylinder (1), a fan (10) for exhausting air inside the protective outer cylinder (1) is fixedly arranged on the outer wall of the protective outer cylinder (1) at the other side of the threaded sleeve (4), a threaded rod (9) is connected with the inner thread of the threaded sleeve (4), a mounting sleeve (14) is arranged at the left side of the threaded rod (9), the reaction barrel (11) is sleeved inside the installation sleeve (14), and the fixing groove (141) for sleeving the reaction barrel (11) is formed inside the installation sleeve (14).
2. The intelligent temperature control device for the carbothermic reduction reaction of silicon carbide powder according to claim 1, wherein: the right-hand member fixedly connected with carousel (5) of threaded rod (9), the right side of carousel (5) is provided with electric motor (7), fixedly connected with carries out bracing piece (8) that support electric motor (7) between electric motor (7) and carousel (5).
3. The intelligent temperature control device for the carbothermic reduction reaction of silicon carbide powder according to claim 2, wherein: output shaft one end fixedly connected with bull stick (6) of electric motor (7), the left end of bull stick (6) runs through the inside and fixed connection in installation cover (14) of carousel (5) and threaded rod (9) in proper order, the inside of threaded rod (9) is seted up and is supplied bull stick (6) to carry out pivoted rotation groove (91).
4. The intelligent temperature control device for the carbothermic reduction reaction of silicon carbide powder according to claim 1, wherein: the heat preservation groove (13) is formed in the shell of the protective outer barrel (1), the left end of the fan (10) is connected with the air barrel, and the air barrel penetrates through the outer wall of the protective outer barrel (1) and is communicated with the interior of the protective outer barrel (1).
5. The intelligent temperature control device for the carbothermic reduction reaction of silicon carbide powder according to claim 1, wherein: the inner wall of the protective outer cylinder (1) is uniformly distributed with a plurality of heating pipes (12).
6. The intelligent temperature control device for the carbothermic reduction reaction of silicon carbide powder according to claim 1, wherein: the mounting sleeve (14) and the threaded rod (9) are not in contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220654500.7U CN216772279U (en) | 2022-03-24 | 2022-03-24 | Be used for carborundum powder carbothermic reduction reaction intelligence temperature regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220654500.7U CN216772279U (en) | 2022-03-24 | 2022-03-24 | Be used for carborundum powder carbothermic reduction reaction intelligence temperature regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216772279U true CN216772279U (en) | 2022-06-17 |
Family
ID=81959719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220654500.7U Active CN216772279U (en) | 2022-03-24 | 2022-03-24 | Be used for carborundum powder carbothermic reduction reaction intelligence temperature regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216772279U (en) |
-
2022
- 2022-03-24 CN CN202220654500.7U patent/CN216772279U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101264927A (en) | Boiling chlorination furnace with temperature-controlling device and temperature-controlling method thereof | |
| CN101285654B (en) | Microwave sintering apparatus and method | |
| CN216772279U (en) | Be used for carborundum powder carbothermic reduction reaction intelligence temperature regulating device | |
| CN114136449B (en) | Graphitization furnace temperature measuring device and graphitization furnace temperature measuring method | |
| CN114180567A (en) | Vertical graphitizing furnace with rapid cooling function | |
| CN206033795U (en) | Adopt pit -type tempering furnace of carbon fiber heating tube heating | |
| CN209113961U (en) | A kind of two-phase steel casting solution device | |
| CN208098035U (en) | A kind of Far infrared radiation heating device | |
| CN203923299U (en) | A kind of drum-type steel ball quenching heating furnace | |
| CN206945468U (en) | One kind energy-conservation thermal shock resistance detection device | |
| CN205403481U (en) | High -power microwave high temperature smelting device | |
| CN205066422U (en) | Multipurpose microwave high temperature roller kilns | |
| CN114395665A (en) | Annealing furnace for martensitic stainless steel 2Cr13 wire | |
| CN106995995A (en) | Air heated type heats device for testing color and method | |
| CN106152785A (en) | The heating furnace of a kind of Ore microwave treatment and using method thereof | |
| CN207600125U (en) | A kind of fireproof material drying oven | |
| CN202204281U (en) | Microwave roller kiln | |
| CN201433303Y (en) | Electromagnetic heating device of dyeing machine | |
| CN208183032U (en) | A kind of full-automatic rodlike heat-treatment furnace efficient hot-air circulation flow guiding device | |
| CN201684600U (en) | Electric heating acid-resisting reaction kettle | |
| CN114042507B (en) | Microwave high-temperature roasting planetary ball mill | |
| CN216925175U (en) | Waste heat utilization device for flue gas of firing roller kiln | |
| CN220665218U (en) | Carbonization equipment for producing carbonized felt | |
| CN219368325U (en) | Vertical heating furnace with heat exchange equipment | |
| CN215162296U (en) | Improved heating device for imidization furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An intelligent temperature control device for carbothermal reduction reaction of silicon carbide powder Effective date of registration: 20230320 Granted publication date: 20220617 Pledgee: Bank of China Limited by Share Ltd. Zhengzhou high tech Development Zone Branch Pledgor: ZHENGZHOU XILIKANG NEW MATERIAL Co.,Ltd. Registration number: Y2023980035478 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20220617 Pledgee: Bank of China Limited by Share Ltd. Zhengzhou high tech Development Zone Branch Pledgor: ZHENGZHOU XILIKANG NEW MATERIAL Co.,Ltd. Registration number: Y2023980035478 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An intelligent temperature control device for carbon thermal reduction reaction of silicon carbide powder Granted publication date: 20220617 Pledgee: Bank of China Limited by Share Ltd. Xinzheng branch Pledgor: ZHENGZHOU XILIKANG NEW MATERIAL Co.,Ltd. Registration number: Y2024980012327 |