CN114053974A - Integral type iron oxide handles reation kettle - Google Patents
Integral type iron oxide handles reation kettle Download PDFInfo
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- CN114053974A CN114053974A CN202111251736.2A CN202111251736A CN114053974A CN 114053974 A CN114053974 A CN 114053974A CN 202111251736 A CN202111251736 A CN 202111251736A CN 114053974 A CN114053974 A CN 114053974A
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- Prior art keywords
- reaction kettle
- iron plate
- iron
- integrated
- pipeline
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- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 190
- 229910052742 iron Inorganic materials 0.000 claims abstract description 94
- 238000006243 chemical reaction Methods 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 claims description 4
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 238000000746 purification Methods 0.000 abstract description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 12
- 239000002002 slurry Substances 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000001034 iron oxide pigment Substances 0.000 description 1
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/006—Baffles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide (Fe2O3)
Abstract
The invention discloses an integrated iron oxide treatment reaction kettle which comprises an integrated reaction kettle vertically arranged, wherein a feeding and discharging bottom pipe is correspondingly arranged at the bottom of the integrated reaction kettle, a feeding pipe and a discharging pipe are respectively arranged on two sides of the lower end of the feeding and discharging bottom pipe, valves are respectively arranged on the feeding pipe and the discharging pipe, and a discharging pipe is correspondingly arranged at the upper end of the integrated reaction kettle. This device is because iron plate is upper and lower staggered form installation, be S-shaped route when consequently thick liquids upwards flow, and indoor iron plate can produce magnetic force under the effect of the magnetic means of outside, so when thick liquids upwards flow, the inside iron fillings impurity of thick liquids etc. is just corresponding adsorbed on iron plate, on the one hand through the corresponding adsorption area that increases of iron plate, on the other hand through the position that sets up iron plate, form S-shaped route, the time of the adsorption treatment of increase, can effectual promotion purification effect, the clear away of inside iron fillings can be more thorough.
Description
Technical Field
The invention relates to the technical field of ferric oxide slurry production equipment, in particular to an integrated ferric oxide treatment reaction kettle.
Background
In the prior art, ferric oxide is used as a raw material of an iron oxide pigment, and needs to be prepared through a series of complex reactions, and slurry of the ferric oxide usually contains very small iron filings and impurities, so that the ferric oxide needs to be purified to remove the iron filings and impurities in the slurry, for example: CN2020113681571 discloses a screening and iron-removing system for iron trioxide slurry, in the system, a magnetic rod is arranged to absorb and remove impurities of iron filings in the slurry, and then screening is performed, but in the disclosed document, on one hand, the clearing space of the iron filings is limited, the clearing amount is small, and the clearing is not thorough; in addition, on the one hand, the iron chips are difficult to clean after being adsorbed by the magnetic rod, and even after the magnetic rod is demagnetized due to power failure, the iron chips are difficult to clean because the adhesive force can be adhered to the magnetic rod or the barrel frame, so that the use is troublesome.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the defects in the prior art, the integrated iron oxide treatment reaction kettle is provided.
The technical scheme is as follows: in order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: the utility model provides an integral type iron oxide handles reation kettle, includes a vertical integral type reation kettle of placing, and the corresponding one of installing in this integral type reation kettle's bottom is advanced and is arranged the bottom tube, should advance and arrange material bottom tube lower extreme both sides and be provided with the inlet pipe respectively and arrange the material pipe, inlet pipe and row arrange and all install the valve on the material pipe, and integral type reation kettle's upper end then corresponding discharging pipe that is provided with.
A plurality of iron plates are further arranged in the integrated reaction kettle from bottom to top, the distance between every two adjacent iron plates is the same, one of the two adjacent iron plates is correspondingly fixed on the left side wall of the integrated reaction kettle, and a liquid inlet is reserved between the right side end of the iron plate and the right side wall of the integrated reaction kettle; the other iron plate is correspondingly fixed on the right side wall of the integrated reaction kettle, a liquid inlet is also reserved between the left side end of the iron plate and the left side wall of the integrated reaction kettle, magnetic devices which can be detached from the iron plate are arranged outside the left side wall and the right side wall of the integrated reaction kettle, and the iron plate can generate magnetic force through the magnetic devices.
The integral type reation kettle still installs the washing pipeline between every two adjacent iron plates, the installation direction of washing pipeline and iron plate mutually perpendicular to, and the upper and lower extreme of washing pipeline still all is provided with the orifice, the corresponding iron plate of upper and lower side of aiming at of orifice, even there is clear water pressure device outside the washing pipeline, can let in the clear water to the washing pipeline and corresponding spout from the orifice.
Furthermore, a cleaning pipeline is also arranged at the middle position of the liquid inlet between each iron plate and the side wall of the integrated reaction kettle, and spray holes are also formed in the upper end and the lower end of the cleaning pipeline.
Furthermore, the cleaning pipeline in the integrated reaction kettle is arranged to be of a pipeline structure, the cleaning pipeline extends out from the clean water pressurizing device, transversely penetrates through the lower end of the integrated reaction kettle and penetrates through the integrated reaction kettle after being bent, the whole cleaning pipeline is of a continuous S-shaped structure, the upper end and the lower end of the cleaning pipeline in the integrated reaction kettle are correspondingly provided with spray holes, and the spray holes are evenly distributed on the cleaning pipeline.
Further, magnetic means set up to the bar magnet subassembly, still all be provided with two sleeves on each iron plate in the integral type reation kettle, two sleeves extend from the outside iron plate to inside of integral type reation kettle's lateral wall, and set up the barred body size looks adaptation of sleeve size and bar magnet subassembly, the barred body of bar magnet subassembly then correspondingly inserts to the sleeve in, the tail end of bar magnet subassembly then stays the outside at integral type reation kettle.
Furthermore, the magnetic bar component is also connected with a power supply device and a control switch, and the magnetic bar component generates magnetic force after the power supply device is electrified, so that the whole iron plate generates magnetic force.
Further, the cleaning pipeline is of a plastic pipeline structure.
Has the advantages that: compared with the prior art, the invention has the following advantages:
(1) in the device, ferric oxide slurry is introduced from a feed inlet at the bottom of the integrated reaction kettle, the slurry is upwards immersed into the iron plate, and the iron plate is installed in an up-and-down staggered manner, so that the slurry flows upwards in an S-shaped path, and the indoor iron plate can generate magnetic force under the action of an external magnetic device;
(2) the magnetic force source of the iron plates in the device and the magnetic device arranged outside the integrated reaction kettle are correspondingly set into magnetic rod assemblies, two sleeves are arranged on each iron plate in a matched mode, the sleeves are arranged on the outer side wall of the integrated reaction kettle and extend towards the inside, the size of each sleeve is adaptive, the rod body of each magnetic rod assembly can be inserted into the corresponding sleeve, after the two magnetic rods are electrified, the two magnetic rods generate magnetic force, the iron plates can correspondingly adsorb scrap iron and the like, the magnetic force correspondingly disappears after power failure, the magnetic rod assemblies can correspondingly enable the iron plates to integrally carry the magnetic force, the dismounting and the mounting are convenient, the magnetic rods do not need to directly extend into slurry, and the magnetic rods can be effectively protected;
(3) the device is also provided with a cleaning device, a cleaning pipeline is correspondingly arranged between every two adjacent iron plates in the integrated reaction kettle, the cleaning pipeline penetrates through the bottom and is arranged in the integrated reaction kettle in an S-shaped bent mode, the whole pipeline is arranged from bottom to top, a clear water pressurizing device is arranged at the lower end, spray holes are further arranged at the upper end and the lower end of the cleaning pipeline, after clear water is introduced through the clear water pressurizing device, the clear water is sprayed out of the spray holes, the magnetic device is powered off during cleaning, the magnetic force of the inner iron plates disappears, part of iron scraps can directly fall off due to gravity, but part of iron scraps can still be adsorbed on the iron plates due to adhesive force, at the moment, the clear water sprayed out of the spray holes can wash the upper end face and the lower end face of each iron plate, adhered iron scraps and the like are washed off and discharged from a discharge pipeline at the bottom of the integrated reaction kettle, can thoroughly clean and remove the indoor scrap iron.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a cross-sectional view of a cleaning conduit according to the present invention;
FIG. 3 is a view taken along line A of FIG. 1;
fig. 4 is a plan view of the iron plate of the present invention.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 4, an integral type iron oxide treatment reaction kettle comprises a vertically placed integral type reaction kettle 1, wherein an inlet and outlet material bottom pipe 2 is correspondingly installed at the bottom of the integral type reaction kettle 1, an inlet material pipe 3 and an outlet material pipe 4 are respectively arranged on two sides of the lower end of the inlet and outlet material bottom pipe 2, valves 5 are respectively installed on the inlet material pipe 3 and the outlet material pipe 4, and a discharge pipe 14 is correspondingly arranged at the upper end of the integral type reaction kettle 1.
A plurality of iron plates 6 are further arranged in the integrated reaction kettle 1 from bottom to top, the distance between every two adjacent iron plates 6 is the same, one iron plate 6 of every two adjacent iron plates 6 is correspondingly fixed on the left side wall of the integrated reaction kettle 1, and a liquid inlet 71 is reserved between the right side end of the iron plate 6 and the right side wall of the integrated reaction kettle 1; the other iron plate 6 is correspondingly fixed on the right side wall of the integrated reaction kettle 1, a liquid inlet 71 is also reserved between the left side end of the iron plate 6 and the left side wall of the integrated reaction kettle 1, magnetic devices which can be detached from the iron plate 6 are arranged outside the left side wall and the right side wall of the integrated reaction kettle 1, and the iron plate 6 can generate magnetic force through the magnetic devices.
Feed inlet from integral type reation kettle bottom lets in the iron sesquioxide thick liquids in this device, the ascending submergence iron plate of thick liquids, and because iron plate is the installation of upper and lower alternating expression, be S-shaped route when consequently thick liquids upwards flow, and indoor iron plate can produce magnetic force under outside magnetic means' S effect, so when thick liquids upwards flow, the inside iron fillings impurity of thick liquids etc. is just corresponding adsorbed on iron plate, on the one hand through the corresponding increase adsorption area of iron plate, on the other hand through the position that sets up iron plate, form S-shaped route, the time of the adsorption treatment of increase, can effectual promotion purification effect, the more thorough of the clear away of inside iron fillings can.
Still install between per two adjacent iron plates 6 in integral type reation kettle 1 and wash pipeline 7, wash pipeline 7's installation direction and iron plate 6 mutually perpendicular to wash the upper and lower extreme of pipeline 7 and still all be provided with orifice 8, orifice 8 is corresponding to aim at iron plate 6 of upper and lower side, even has clear water pressure device 9 outside wash pipeline 7, can let in the clear water to wash pipeline 7 in and corresponding spout from orifice 8.
A cleaning pipeline 7 is also arranged in the middle of the liquid inlet 71 between each iron plate 6 and the side wall of the integrated reaction kettle 1, and spray holes 8 are also formed in the upper end and the lower end of the cleaning pipeline 7.
The cleaning pipeline 7 in the integrated reaction kettle 1 is arranged to be of a pipeline structure, the cleaning pipeline 7 extends out from the clear water pressurizing device 9, transversely penetrates through the lower end of the integrated reaction kettle 1, penetrates through the integrated reaction kettle 1 after being bent, the cleaning pipeline 7 is integrally of a continuous S-shaped structure, the upper end and the lower end of the cleaning pipeline 7 in the integrated reaction kettle 1 are correspondingly provided with spray holes 8, and the spray holes 8 are evenly distributed on the cleaning pipeline 7.
The device is also provided with a cleaning device, a cleaning pipeline is correspondingly arranged between every two adjacent iron plates in the integrated reaction kettle, the cleaning pipeline penetrates through the bottom and is arranged in the integrated reaction kettle in an S-shaped bent mode, the whole pipeline is arranged from bottom to top, a clear water pressurizing device is arranged at the lower end, spray holes are further arranged at the upper end and the lower end of the cleaning pipeline, after clear water is introduced through the clear water pressurizing device, the clear water is sprayed out of the spray holes, the magnetic device is powered off during cleaning, the magnetic force of the inner iron plates disappears, part of iron scraps can directly fall off due to gravity, but part of iron scraps can still be adsorbed on the iron plates due to adhesive force, at the moment, the clear water sprayed out of the spray holes can wash the upper end face and the lower end face of each iron plate, adhered iron scraps and the like are washed off and discharged from a discharge pipeline at the bottom of the integrated reaction kettle, can thoroughly clean and remove the indoor scrap iron.
Magnetic means sets up to magnetic rod subassembly 10, still all is provided with two sleeves 11 on each iron plate 6 in the integral type reation kettle 1, and two sleeves 11 extend to inside iron plate 6 from integral type reation kettle 1's the lateral wall outside, and set up the barred body size looks adaptation of sleeve 11 size and magnetic rod subassembly 10, and the barred body of magnetic rod subassembly 10 is then corresponding to insert to sleeve 11 in, and the tail end of magnetic rod subassembly 10 then stays the outside at integral type reation kettle 1.
The magnetic bar assembly 10 is also connected with a power supply device 12 and a control switch 13, and the magnetic bar assembly 10 generates magnetic force after the power supply device 12 is electrified, so that the whole iron plate 6 generates magnetic force; the cleaning pipe 7 is provided with a plastic pipe structure.
Magnetic force source and integral type reation kettle externally mounted's magnetic means of iron plate in this device, and magnetic means then correspondingly sets up to the bar magnet subassembly, and install on each iron plate still all be provided with two sleeves for the cooperation, the sleeve sets up at integral type reation kettle lateral wall to inside extension, and the size is also the adaptation, with the bar body part of bar magnet subassembly insert to the sleeve in can, two bar magnets all produce magnetic force behind the circular telegram, thereby make iron plate also produce magnetic force, can corresponding absorption iron fillings etc., magnetic force also correspondingly disappears after the outage, can correspondingly make the whole magnetic force of taking of iron plate through the bar magnet subassembly, and easy dismounting, the bar magnet need not directly stretch into to the thick liquids in, can effectual protection bar magnet.
The detailed description is to be construed as exemplary only and is not intended to limit the invention from practice or the scope of the appended claims, which are intended to include all equivalent variations and modifications within the scope of the invention as claimed.
Claims (6)
1. The utility model provides an integral type iron oxide handles reation kettle which characterized in that: the device comprises a vertically-placed integrated reaction kettle (1), wherein a material inlet and outlet bottom pipe (2) is correspondingly arranged at the bottom of the integrated reaction kettle (1), a material inlet pipe (3) and a material outlet pipe (4) are respectively arranged on two sides of the lower end of the material inlet and outlet bottom pipe (2), valves (5) are respectively arranged on the material inlet pipe (3) and the material outlet pipe (4), and a material outlet pipe (14) is correspondingly arranged at the upper end of the integrated reaction kettle (1);
a plurality of iron plates (6) are further arranged in the integrated reaction kettle (1) from bottom to top, the distance between every two adjacent iron plates (6) is the same, one iron plate (6) of every two adjacent iron plates (6) is correspondingly fixed on the left side wall of the integrated reaction kettle (1), and a liquid inlet (71) is reserved between the right side end of the iron plate (6) and the right side wall of the integrated reaction kettle (1); the other iron plate (6) is correspondingly fixed on the right side wall of the integrated reaction kettle (1), a liquid inlet (71) is also reserved between the left side end of the iron plate (6) and the left side wall of the integrated reaction kettle (1), magnetic devices which can be detached from the iron plate (6) are arranged outside the left side wall and the right side wall of the integrated reaction kettle (1), and the iron plate (6) can generate magnetic force through the magnetic devices;
still install between per two adjacent iron plates (6) in integral type reation kettle (1) and wash pipeline (7), the installation direction and iron plate (6) mutually perpendicular of washing pipeline (7), and the upper and lower extreme of washing pipeline (7) still all is provided with orifice (8), orifice (8) corresponding iron plate (6) of aiming at the upper and lower side, it has clear water pressure device (9) to link outward to wash pipeline (7), can let in the clear water to wash pipeline (7) in and corresponding spout from orifice (8).
2. The integrated iron oxide treatment reaction kettle according to claim 1, wherein: cleaning pipelines (7) are further mounted in the middle of the liquid inlet (71) between each iron plate (6) and the side wall of the integrated reaction kettle (1), and spray holes (8) are also formed in the upper end and the lower end of each cleaning pipeline (7).
3. The integrated iron oxide treatment reaction kettle according to claim 2, wherein: wash pipeline (7) in integral type reation kettle (1) sets up to a pipeline structure, wash pipeline (7) and extend out from clear water pressure device (9), pass from the lower extreme traversing of integral type reation kettle (1), pass from integral type reation kettle (1) after buckling again, wash pipeline (7) whole and be continuous S-shaped structure, the upper and lower end of setting up washing pipeline (7) in integral type reation kettle (1) corresponds and is provided with orifice (8), and orifice (8) are for evenly arranging the setting on washing pipeline (7).
4. The integrated iron oxide treatment reaction kettle according to claim 1, wherein: magnetic means set up to bar magnet subassembly (10), still all be provided with two sleeve (11) on each iron plate (6) in integral type reation kettle (1), two sleeve (11) extend to iron plate (6) inside from the lateral wall outside of integral type reation kettle (1), and set up the barred body size looks adaptation of sleeve (11) size and bar magnet subassembly (10), the barred body of bar magnet subassembly (10) is then corresponding to be inserted to in sleeve (11), the tail end of bar magnet subassembly (10) then stays the outside in integral type reation kettle (1).
5. The integrated iron oxide treatment reactor according to claim 4, wherein: the magnetic rod assembly (10) is further connected with a power supply device (12) and a control switch (13), and the magnetic rod assembly (10) generates magnetic force after the power supply device (12) is electrified, so that the whole iron plate (6) generates magnetic force.
6. The integrated iron oxide treatment reaction kettle according to claim 1, wherein: the cleaning pipeline (7) is of a plastic pipeline structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111251736.2A CN114053974A (en) | 2021-10-26 | 2021-10-26 | Integral type iron oxide handles reation kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111251736.2A CN114053974A (en) | 2021-10-26 | 2021-10-26 | Integral type iron oxide handles reation kettle |
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| Publication Number | Publication Date |
|---|---|
| CN114053974A true CN114053974A (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111251736.2A Pending CN114053974A (en) | 2021-10-26 | 2021-10-26 | Integral type iron oxide handles reation kettle |
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