CN116689380B - Quartz sand pickling purification device - Google Patents
Quartz sand pickling purification device Download PDFInfo
- Publication number
- CN116689380B CN116689380B CN202310820667.5A CN202310820667A CN116689380B CN 116689380 B CN116689380 B CN 116689380B CN 202310820667 A CN202310820667 A CN 202310820667A CN 116689380 B CN116689380 B CN 116689380B
- Authority
- CN
- China
- Prior art keywords
- acid
- cavity
- ring barrel
- barrel
- inlet
- 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
- 239000006004 Quartz sand Substances 0.000 title claims abstract description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000005554 pickling Methods 0.000 title claims abstract description 19
- 238000000746 purification Methods 0.000 title claims description 3
- 239000002253 acid Substances 0.000 claims abstract description 161
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims description 31
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 comprises flotation Chemical compound 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention belongs to the technical field of quartz sand pickling, and particularly relates to a quartz sand pickling and purifying device which comprises a rotary bipyramid reaction kettle, a continuous acid supply device, a continuous acid discharge device, a transmission device and brackets, wherein the continuous acid supply device is arranged between one bracket and the rotary bipyramid reaction kettle, and the continuous acid discharge device is arranged between the other bracket and the rotary bipyramid reaction kettle.
Description
Technical Field
The invention belongs to the technical field of quartz sand pickling, and particularly relates to a quartz sand pickling and purifying device.
Background
The impurity removal of the high-purity quartz sand mainly comprises flotation, magnetic separation, acid washing, chloridizing roasting and the like, the acid washing of the quartz sand is divided into static acid washing and dynamic acid washing, the dynamic acid washing of the quartz sand mainly uses a double-cone rotary reaction kettle, a double-cone rotary quartz sand acid washing machine is disclosed in the patent with publication number of CN207933059U, a hollow groove is formed between the outer wall and the inner wall, high-temperature gas is injected into the hollow groove, heat is conducted through the inner container, but the heat conductivity coefficient of PFA on the inner container is lower, meanwhile, the outer wall of the PFA continuously dissipates heat, and the heat utilization rate is not high; the patent with publication number of CN107128931A discloses a dynamic high-temperature pickling device for high-purity quartz sand, wherein a hollow hot oil jacket is wrapped on the outer wall of the dynamic high-temperature pickling device, and heat conduction is realized by using hot oil, and the heat conduction mode is similar to gas heat conduction, but different heat conduction media are used.
The heating mode of the existing double-cone rotary pickling machine has higher loss of heat, needs heat conduction through the liner and the coating, has slower heating speed of acid liquor, and also has longer pickling time.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the acid cleaning device which utilizes the continuous acid supply device and the continuous acid discharge device to realize continuous acid inlet and outlet of the rotary double-cone reaction kettle, and continuously injects the acid into the reaction kettle after the acid is externally heated to the designated temperature, so as to realize rapid temperature rise and heat preservation in the reaction kettle, maintain the reaction intensity and greatly accelerate the acid cleaning speed.
The invention provides a quartz sand pickling and purifying device, which comprises a rotary bipyramid reaction kettle, a continuous acid supply device, a continuous acid discharge device, a transmission device and a bracket, and is characterized in that: the support sets up in the both sides of gyration bipyramid reation kettle, continuous acid supply device sets up between one of them support and gyration bipyramid reation kettle, continuous acid supply device sets up between another support and gyration bipyramid reation kettle, gyration bipyramid reation kettle includes the cauldron body, upper cover, lower cover and pivot, continuous acid supply device sets up in the pivot of one side wherein, continuous acid supply device sets up in the pivot of opposite side, continuous acid supply device includes first outer ring bucket and first inner ring bucket, be equipped with first acidizing fluid chamber between first outer ring bucket and the first inner ring bucket, be equipped with the second acidizing fluid chamber in the first inner ring bucket, be equipped with first acid inlet on the first outer ring bucket, be located first acidizing fluid intracavity on the first inner ring bucket and be equipped with the third acid inlet, continuous acid supply device includes second outer ring bucket and second inner ring bucket, be equipped with the third acid chamber on the second inner ring bucket, second outer ring bucket and second inner ring bucket are equipped with the third acid chamber, second acid chamber is equipped with the third acid chamber on the second inner ring bucket.
Further, the lower cover comprises a lower cover body, a side inlet and a lower outlet, a first filter pipe is arranged on the side inlet, a second filter pipe is arranged on the lower outlet, the side inlet is connected with a third acid inlet through a pipeline, and the lower outlet is connected with a third acid outlet through a pipeline.
Further, the kettle body comprises an outer wall, an inner wall and a heat preservation cavity, wherein the heat preservation cavity is arranged between the outer wall and the inner wall, and a PFA coating is coated on the inner side of the inner wall.
Further, the transmission device comprises a motor, a belt transmission device, a speed reducer and a chain transmission device, wherein the motor is arranged on the support, the belt transmission device is arranged between the motor and the speed reducer, and the chain transmission device is arranged between the speed reducer and the rotating shaft.
Further, one of the brackets is connected with the first outer ring barrel, and the other bracket is connected with the second outer ring barrel.
The beneficial effects obtained by the invention by adopting the structure are as follows:
(1) The acid liquor is directly injected into the reaction kettle, heat conduction is not conducted through the inner wall, and the acid liquor is not in direct contact with the outer wall, so that the heating speed is high, and the heat utilization rate is high;
(2) Through the inner and outer double-layer structure of the continuous acid supply device, the inner cylinder and the reaction kettle synchronously rotate, and the outer cylinder does not rotate, so that a dynamic acid adding function is realized;
(3) Acid is continuously discharged through the continuous acid discharging device while acid is injected, low-temperature low-concentration acid liquid is discharged, and the concentration and the temperature of the acid liquid are maintained.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a quartz sand pickling and purifying device;
FIG. 2 is a schematic diagram of a continuous acid supply device of a quartz sand acid washing and purifying device;
FIG. 3 is a schematic diagram of a continuous acid outlet device of the quartz sand acid washing and purifying device;
FIG. 4 is a schematic diagram of the structure of a kettle of the quartz sand pickling and purifying device;
fig. 5 is a schematic diagram of the structure of the lower cover of the quartz sand pickling and purifying device.
1, a rotary double-cone reaction kettle; 2. a continuous acid supply device; 3. a continuous acid discharging device; 4. a transmission device; 5. a bracket; 6. a kettle body; 7. an upper cover; 8. a lower cover; 9. a rotating shaft; 10. a first outer ring tub; 11. a first inner ring tub; 12. a first acid cavity; 13. a second acid cavity; 14. a first acid inlet; 15. a second acid inlet; 16. a third acid inlet; 17. a second outer ring tub; 18. a second inner ring tub; 19. a third acid cavity; 20. a fourth acid cavity; 21. a first acid outlet; 22. a second acid outlet; 23. a third acid outlet; 24. a lower cover; 25. a side inlet; 26. a lower outlet; 27. a first filter tube; 28. a second filter tube; 29. an outer wall; 30. an inner wall; 31. a heat preservation cavity; 32. a PFA coating; 33. a motor; 34. a belt drive; 35. a speed reducer; 36. a chain drive.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientation or positional relationships based on those shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1 to 5, the invention provides a quartz sand pickling and purifying device, which comprises a rotary double-cone reaction kettle 1, a continuous acid supply device 2, a continuous acid discharge device 3, a transmission device 4 and a bracket 5, and is characterized in that: the brackets 5 are arranged at two sides of the rotary double-cone reaction kettle 1, the continuous acid supply device 2 is arranged between one bracket 5 and the rotary double-cone reaction kettle 1, the continuous acid discharge device 3 is arranged between the other bracket 5 and the rotary double-cone reaction kettle 1, the rotary double-cone reaction kettle 1 comprises a kettle body 6, an upper cover 7, a lower cover 8 and a rotating shaft 9, the continuous acid supply device 2 is arranged on the rotating shaft 9 at one side, the continuous acid discharge device 3 is arranged on the rotating shaft 9 at the other side, the continuous acid supply device 2 and the continuous acid discharge device 3 are connected with the rotary double-cone reaction kettle 1, the continuous acid supply device 2 continuously supplies acid, the continuous acid discharge device 3 continuously discharges acid, the acid liquid is directly heated outside the kettle, the loss of medium heating and heat conduction is avoided, the acid liquid in the rotary double-cone reaction kettle 1 is replaced, the continuous acid supply device 2 comprises a first outer ring barrel 10 and a first inner ring barrel 11, the first inner ring barrel 11 is fixed on the rotating shaft 9 through a bushing, the rotary double-cone reaction kettle 1 can be rotated along with the rotation, the joint of the first outer ring barrel 10 and the first inner ring barrel 11 is sealed by using a filler, the first outer ring barrel 10 and the first inner ring barrel 11 are connected by a sliding bush, a bearing or the like, so that the first outer ring barrel 10 and the first inner ring barrel 11 can rotate relatively, acid liquor enters a first acid liquor cavity 12 between the first outer ring barrel 10 and the first inner ring barrel 11 from a first acid inlet 14, enters a second acid liquor cavity 13 in the first inner ring barrel 11 from a second acid inlet 15, the first inner ring barrel 11 inputs the internal acid liquor into the rotary double-cone reaction kettle 1 through a third acid inlet 16, the continuous acid discharging device 3 comprises a second outer ring barrel 17 and a second inner ring barrel 18, the second outer ring barrel 17 and the second inner ring barrel 18 are sealed by using the same filler, and a relatively rotatable connection mode is also used, the acid liquor in the rotary double-cone reaction kettle 1 enters the second inner ring barrel 18 through the third acid outlet 23, the acid liquor in the second inner ring barrel 18 enters the second outer ring barrel 17 through the second acid outlet 22, and the first acid outlet 21 on the second outer ring barrel 17 can discharge the acid liquor into the recovery device.
The lower cover 8 comprises a lower cover body 24, a side inlet 25 and a lower outlet 26, wherein a first filter pipe 27 is arranged on the side inlet 25, a second filter pipe 28 is arranged on the lower outlet 26, the ends of the first filter pipe 27 and the second filter pipe 28 are used for preventing quartz sand from entering, the side inlet 25 is connected with the third acid inlet 16 through a pipeline, and the lower outlet 26 is connected with the third acid outlet 23 through a pipeline.
The kettle body 6 comprises an outer wall 29, an inner wall 30 and a heat preservation cavity 31, wherein the heat preservation cavity 31 can be filled with heat preservation gas or vacuumized to preserve the heat of acid liquor, and the inner side of the inner wall 30 is coated with a PFA coating 32 with the thickness of 8MM.
The transmission device 4 comprises a motor 33, a belt transmission device 34, a speed reducer 35 and a chain transmission device 36, the rotary transmission system takes the motor 33 as power, the motor 33 drives the belt transmission device 34 to rotate, the power is transmitted to the speed reducer 35, and the reaction kettle is driven to rotate through the chain transmission device 36 after the speed reducer 35 is decelerated to 40 r/min.
The first outer ring barrel 10 is fixed on one of the brackets 5, the second outer ring barrel 17 is fixed on the other bracket 5, and when the rotary double-cone reaction kettle 1 rotates, the first outer ring barrel 10 and the second outer ring barrel 17 are fixed.
When the quartz sand recycling device is specifically used, quartz sand is filled into the kettle body 6, the transmission device 4 is started, the chain transmission device 36 drives the rotary bipyramid reaction kettle 1 to rotate, meanwhile, the first inner ring barrel 11 and the second inner ring barrel 18 rotate along with the rotary bipyramid reaction kettle 1, but the first outer ring barrel 10 and the second outer ring barrel 17 are fixed, a pipeline of an acid liquid groove is connected with the first acid inlet 14, a pipeline of an acid liquid recycling groove is connected with the first acid outlet 21, after the external acid liquid is heated to a specified temperature, the acid liquid is pumped into the first acid cavity 12 through the first acid inlet 14, the liquid level in the first acid cavity 12 is raised, after the liquid level reaches a certain height, the acid liquid enters the second acid cavity 13 through the second acid inlet 15, after the liquid level in the second acid cavity 13 reaches a certain height, the acid liquid is continuously conveyed into the kettle body 6 for a period of time, after the liquid level of the acid liquid in the kettle body 6 also reaches the standard, the acid liquid is discharged into the second inner ring barrel 18 through the second filter tube 28, the acid liquid in the second inner ring barrel 18 is discharged into the second acid cavity 22 through the second acid inlet 17, and finally the acid liquid is continuously discharged from the acid groove 6, and the acid is continuously discharged from the quartz sand recycling device to the acid groove.
It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (3)
1. The utility model provides a quartz sand's pickling purification device, includes gyration bipyramid reation kettle (1), continuous acid supply device (2), goes out sour device (3), transmission (4) and support (5), its characterized in that: the support (5) is arranged on two sides of the rotary double-cone reaction kettle (1), the continuous acid supply device (2) is arranged between one support (5) and the rotary double-cone reaction kettle (1), the continuous acid supply device (3) is arranged between the other support (5) and the rotary double-cone reaction kettle (1), the rotary double-cone reaction kettle (1) comprises a kettle body (6), an upper cover (7), a lower cover (8) and a rotating shaft (9), the continuous acid supply device (2) is arranged on the rotating shaft (9) on one side of the rotary double-cone reaction kettle, the continuous acid supply device (3) is arranged on the rotating shaft (9) on the other side, the continuous acid supply device (2) comprises a first outer ring barrel (10) and a first inner ring barrel (11), a first acid liquor cavity (12) is arranged between the first outer ring barrel (10) and the first inner ring barrel (11), a second acid cavity (13) is arranged in the first inner ring barrel (11), a first acid inlet (14) is arranged on the first outer ring barrel (10), a first acid inlet (16) is arranged on the first acid inlet (12) on the first inner ring barrel (11), the continuous acid outlet device (3) comprises a second outer ring barrel (17) and a second inner ring barrel (18), a third acid liquor cavity (19) is arranged between the second outer ring barrel (17) and the second inner ring barrel (18), a fourth acid liquor cavity (20) is arranged in the second inner ring barrel (18), a first acid outlet (21) is formed in the second outer ring barrel (17), a second acid outlet (22) is formed in the second inner ring barrel (18) and positioned in the third acid liquor cavity (19), and a third acid outlet (23) is formed in the second inner ring barrel (18) and positioned outside the third acid liquor cavity (19);
the lower cover (8) comprises a lower cover body (24), a side inlet (25) and a lower outlet (26), wherein a first filter pipe (27) is arranged on the side inlet (25), a second filter pipe (28) is arranged on the lower outlet (26), the side inlet (25) is connected with a third acid inlet (16) through a pipeline, and the lower outlet (26) is connected with a third acid outlet (23) through a pipeline;
the transmission device (4) comprises a motor (33), a belt transmission device (34), a speed reducer (35) and a chain transmission device (36), wherein the motor (33) is arranged on the bracket (5), the belt transmission device (34) is arranged between the motor (33) and the speed reducer (35), and the chain transmission device (36) is arranged between the speed reducer (35) and the rotating shaft (9);
when the device is specifically used, quartz sand is filled into the kettle body (6), the transmission device (4) is started, the chain transmission device (36) drives the rotary bipyramid reaction kettle (1) to rotate, meanwhile, the first inner annular barrel (11) and the second inner annular barrel (18) rotate along with the rotary bipyramid reaction kettle (1), but the first outer annular barrel (10) and the second outer annular barrel (17) are fixed, a pipeline of an acid liquid tank is connected with the first acid inlet (14), a pipeline of the acid liquid recovery tank is connected with the first acid outlet (21), after the external acid liquid is heated to a specified temperature, the acid liquid is pumped into the first acid cavity (12) through the first acid inlet (14), the liquid level in the first acid cavity (12) is raised, after the liquid level in the acid liquid cavity reaches a certain height, the acid liquid level in the second acid cavity (13) starts to continuously convey the acid liquid into the kettle body (6) for a period of time, the acid liquid level in the kettle body (6) reaches a certain height, the acid liquid level in the second acid cavity (13) is not fed into the second acid cavity (18) through the second acid inlet (14), the acid liquid is discharged from the second acid recovery tank (18) to the second acid recovery tank (18) after the external acid cavity reaches a specified temperature, the acid liquid level in the acid tank is not fed into the second acid cavity (18) through the second acid recovery tank (18), and (5) completing dynamic continuous pickling of quartz sand.
2. The quartz sand pickling and purifying apparatus as claimed in claim 1, wherein: the kettle body (6) comprises an outer wall (29), an inner wall (30) and a heat preservation cavity (31), wherein the heat preservation cavity (31) is arranged between the outer wall (29) and the inner wall (30), and a PFA coating (32) is coated on the inner side of the inner wall (30).
3. The quartz sand pickling and purifying apparatus as claimed in claim 2, wherein: one of the brackets (5) is connected with the first outer ring barrel (10), and the other bracket (5) is connected with the second outer ring barrel (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310820667.5A CN116689380B (en) | 2023-07-06 | 2023-07-06 | Quartz sand pickling purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310820667.5A CN116689380B (en) | 2023-07-06 | 2023-07-06 | Quartz sand pickling purification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116689380A CN116689380A (en) | 2023-09-05 |
| CN116689380B true CN116689380B (en) | 2024-03-12 |
Family
ID=87837449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310820667.5A Active CN116689380B (en) | 2023-07-06 | 2023-07-06 | Quartz sand pickling purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116689380B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058413A (en) * | 2014-07-17 | 2014-09-24 | 田辉明 | Method and device for continuous acid pickling purification of quartz sand |
| CN107128931A (en) * | 2017-06-19 | 2017-09-05 | 江苏太平洋石英股份有限公司 | A kind of glass sand dynamic high temperature acid dip pickle |
| CN108545749A (en) * | 2018-06-08 | 2018-09-18 | 蕲春凯地矿材有限公司 | Produce the acid dip pickle and technique of ultra-pure quartz sand |
| CN207933059U (en) * | 2018-01-09 | 2018-10-02 | 太仓新工搪玻璃有限公司 | A kind of bipyramid rotary quartz sand acid washing machine |
| CN218223801U (en) * | 2022-09-22 | 2023-01-06 | 范炜锟 | Dynamic quartz sand pickling system |
-
2023
- 2023-07-06 CN CN202310820667.5A patent/CN116689380B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058413A (en) * | 2014-07-17 | 2014-09-24 | 田辉明 | Method and device for continuous acid pickling purification of quartz sand |
| CN107128931A (en) * | 2017-06-19 | 2017-09-05 | 江苏太平洋石英股份有限公司 | A kind of glass sand dynamic high temperature acid dip pickle |
| CN207933059U (en) * | 2018-01-09 | 2018-10-02 | 太仓新工搪玻璃有限公司 | A kind of bipyramid rotary quartz sand acid washing machine |
| CN108545749A (en) * | 2018-06-08 | 2018-09-18 | 蕲春凯地矿材有限公司 | Produce the acid dip pickle and technique of ultra-pure quartz sand |
| CN218223801U (en) * | 2022-09-22 | 2023-01-06 | 范炜锟 | Dynamic quartz sand pickling system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116689380A (en) | 2023-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105822903A (en) | Novel petroleum exploitation auxiliary device | |
| CN211026325U (en) | Circulation stirring reation kettle | |
| CN116689380B (en) | Quartz sand pickling purification device | |
| CN211612689U (en) | Chlorination reaction kettle | |
| CN2876069Y (en) | Reaction kettle use for purification treatment of quartz sand | |
| CN208275316U (en) | A kind ofization sugar bowl | |
| CN219097625U (en) | Storage device for chemical products | |
| CN208501013U (en) | A kind of starchy material saccharification production energy saver | |
| CN205716439U (en) | Nonpetroleum exploitation auxiliary device | |
| CN216378303U (en) | Quenching device for producing bimetallic cylinder sleeve | |
| CN207698409U (en) | A kind of chemical barrel attemperator | |
| CN205714143U (en) | Nonpetroleum quarrying apparatus | |
| CN206481887U (en) | A kind of continous way water dip sterilization recycle heat device for tinned fruit | |
| CN219944006U (en) | Belt cleaning device is used in ampoule production | |
| CN220317787U (en) | White tea theabrownin fermenting installation | |
| CN219462519U (en) | Three-effect evaporation device for waste catalyst | |
| CN217030765U (en) | Efficient energy-saving lubricating oil station | |
| CN220676817U (en) | Crystallization device for pharmaceutical intermediate production | |
| CN219347140U (en) | Vacuum drying device | |
| CN219682495U (en) | Raw material blending mechanism for gear oil processing | |
| CN218955357U (en) | Vacuum rotary dryer with uniform heating | |
| CN215460248U (en) | Tilting-type boiling pan of steam heating | |
| CN218884265U (en) | Heat storage and electric heating coupling system device | |
| CN217248938U (en) | Ultra-low temperature reation kettle that cooling efficiency is high | |
| CN220502674U (en) | Industrial naphthalene loading arm with heating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |