CN112337513A - Converter valve inner cooling water self-cleaning circulating device - Google Patents
Converter valve inner cooling water self-cleaning circulating device Download PDFInfo
- Publication number
- CN112337513A CN112337513A CN202011134626.3A CN202011134626A CN112337513A CN 112337513 A CN112337513 A CN 112337513A CN 202011134626 A CN202011134626 A CN 202011134626A CN 112337513 A CN112337513 A CN 112337513A
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- resin
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- pipe
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- 238000004140 cleaning Methods 0.000 title claims abstract description 107
- 239000000498 cooling water Substances 0.000 title description 3
- 239000011347 resin Substances 0.000 claims abstract description 101
- 229920005989 resin Polymers 0.000 claims abstract description 101
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 20
- 238000005406 washing Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 2
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- 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
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/60—Cleaning or rinsing ion-exchange beds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to the technical field of resin cleaning and replacing. The invention relates to an automatic cleaning and circulating device for cold water in a converter valve, which comprises a resin cleaning device and a resin filling device communicated and connected with the resin cleaning device; the resin cleaning device comprises a cleaning tank, and the cleaning tank is in conduction connection with a water inlet pipe, a feed pipe, a discharge pipe and a drain pipe; the resin filling device comprises a feeding barrel which is connected with the discharging pipe in a conduction mode and is far away from one end of the cleaning tank, and a driving device which is used for driving the feeding barrel to lift and rotate. The automatic cleaning and circulating device for the cold water in the converter valve can efficiently and automatically clean and fill resin.
Description
Technical Field
The invention relates to the technical field of resin cleaning and replacing, in particular to an automatic cleaning and circulating device for cold water in a converter valve.
Background
At present, in order to ensure that the conductivity of the cold water is maintained at a lower level, the internal cooling system of the converter valve needs to regularly clean and replace the ionic resin in the cold water of the converter valve. Aiming at the regular ionic resin cleaning work, a maintainer needs to manually discharge the ionic resin in the resin tank, then manually rinse the ionic resin repeatedly, and after rinsing is finished, scooping the ionic resin into the resin tank by using a spoon; the new ion resin needs to be cleaned and put into the ion exchanger. Therefore, the operation is complicated, and a large amount of manpower and material resources are wasted.
Publication number CN111659473A discloses a multifunctional cleaning device for cold resin in a valve cooling system, which is used for rapidly cleaning the resin and verifying the cleaning effect. Although the device can realize quick and efficient resin cleaning, the cleaning process is too complex, the device is not compact enough, and the cleaned resin still needs to be manually filled into the resin tank, so that the labor is not saved as much as possible.
Therefore, it is still of some significance to design a resin automatic cleaning and replacing apparatus that can automatically clean resin efficiently and can easily fill the cleaned resin into a resin tank after cleaning is completed.
Content of application
The invention aims to provide an automatic cleaning and circulating device for cold water in a converter valve, which can automatically clean and fill resin with high efficiency.
The embodiment of the invention is realized by the following technical scheme: the invention relates to an automatic cleaning and circulating device for cold water in a converter valve, which comprises a resin cleaning device and a resin filling device communicated and connected with the resin cleaning device; the resin cleaning device comprises a cleaning tank, and the cleaning tank is in conduction connection with a water inlet pipe, a feed pipe, a discharge pipe and a drain pipe; the resin filling device comprises a feeding barrel which is connected with the discharging pipe in a conduction mode and is far away from one end of the cleaning tank, and a driving device which is used for driving the feeding barrel to lift and rotate.
Furthermore, a plurality of liquid level sensors are arranged inside the cleaning tank, and the plurality of liquid level sensors are sequentially arranged inside the cleaning tank along the vertical direction; the liquid level sensor is used for monitoring the water level inside the cleaning tank.
Furthermore, a conical funnel is arranged in the cleaning tank close to the bottom wall, and the small end of the conical funnel is arranged close to the bottom wall of the cleaning tank; the small-mouth end of the conical funnel is connected with the discharge pipe in a conduction way.
Furthermore, one end of the feeding pipe close to the cleaning tank is provided with a feeding electromagnetic valve, and the feeding electromagnetic valve is electrically connected with the liquid level sensor.
Furthermore, a plurality of water holes are uniformly formed in the side wall of the conical funnel, and the diameter of each water hole is smaller than that of each resin particle; the water inlet has been seted up to the washing jar diapire, inlet tube and the sealed turn-on connection of inlet hole.
Furthermore, one end of the water inlet pipe close to the cleaning tank is provided with a water inlet electromagnetic valve, and the water inlet electromagnetic valve is electrically connected with the liquid level sensor.
Furthermore, the upper end of the cleaning tank is connected with a strainer in a conduction manner; the water filter pipe is communicated with the water drain pipe; the side wall of the water filter pipe positioned in the cleaning tank is provided with a plurality of filter holes, and the diameter of each filter hole is smaller than that of the resin particles.
Further, a conductivity sensor is arranged inside the water filter pipe; one end of the discharge pipe close to the cleaning tank is provided with a discharge electromagnetic valve; the discharging electromagnetic valve is electrically connected with the conductivity sensor.
Further, the driving device comprises a lifting device and a rotating device; the lifting device is used for lifting the feeding barrel to a feeding port of the resin tank; the lifting device comprises a pair of hydraulic cylinders which are vertically arranged, and the feeding barrel is fixedly connected with a connecting device; the connecting device comprises a fixed ring fixed on the outer wall of the charging bucket and a pair of horizontally arranged connecting rods fixed on the fixed ring, and the pair of connecting rods are symmetrically distributed along the central axis of the charging bucket; the telescopic rod of a hydraulic cylinder is connected with a connecting rod.
Further, the rotating device is used for driving the feeding barrel to rotate along the connecting rod; one end of the connecting rod, which is far away from the fixed ring, is fixedly connected with a driven gear; the rotating device comprises a rotating driving device used for driving the driven gear to rotate; the rotary driving device comprises a driving gear meshed with the driven gear, a driven belt wheel coaxially arranged with the driving gear and a driving belt wheel used for driving the driven belt wheel to rotate, and the driving belt wheel is connected with the driven belt wheel through a transmission belt.
The invention has at least the following beneficial effects: according to the automatic cleaning and circulating device for the cold water in the converter valve, the liquid level sensor is arranged in the cleaning tank, so that the automatic filling and discharging of the resin and the water are realized, the resin is discharged into the feeding barrel after the resin cleaning is finished, and the resin in the feeding barrel is quickly and conveniently filled into the resin tank by using the driving device. Not only effectively improve washing, the change efficiency of resin, reduced the waste of manpower, still made the washing and the change of resin more standardized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an automatic cleaning and circulating device for cold water in a converter valve according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the interior of the automatic cleaning and circulating device for cold water in a converter valve according to the embodiment of the invention;
fig. 3 is a schematic structural diagram of a driving device of an automatic cleaning and circulating device for cold water in a converter valve according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a cleaning tank of an automatic cleaning and circulating device for cold water in a converter valve according to an embodiment of the present invention.
Icon: 10-cleaning tank, 11-feeding pipe, 12-feeding electromagnetic valve, 13-discharging pipe, 14-discharging electromagnetic valve, 15-feeding pipe, 16-feeding electromagnetic valve, 17-water filtering pipe, 18-conical funnel, 19-liquid level sensor, 110-discharging pipe, 21-hydraulic cylinder, 22-telescopic rod, 23-driving pulley, 24-driving belt, 25-driven pulley, 26-driving gear, 27-driven gear, 28-connecting rod, 29-fixing ring, 210-rocker, 30-feeding barrel and 40-resin tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of this application is used, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-4, the automatic cleaning and circulating device for cold water in a converter valve of the present invention includes a resin cleaning device and a resin filling device in communication connection with the resin cleaning device; the resin cleaning device comprises a cleaning tank 10, wherein the cleaning tank 10 is in conduction connection with a water inlet pipe 15, a feed pipe 11, a discharge pipe 13 and a drain pipe 110; the resin filling device comprises a feeding barrel 30 which is in conduction connection with one end of the discharge pipe 13 far away from the cleaning tank 10, and a driving device for driving the feeding barrel 30 to lift and rotate. Specifically, in this embodiment, the cleaning tank 10 is used to connect the water inlet pipe 15, the water outlet pipe 110, the feed pipe 11, and the discharge pipe 13 to achieve automatic resin cleaning; in addition, the discharging pipe 13 discharges the cleaned resin into the charging basket 30, and then discharges the resin in the charging basket 30 into the resin tank 40 under the action of the driving device, thereby completing the resin injection, and then the charging basket 30 is returned to the previous position to continue receiving the cleaned resin. Therefore, manpower is reduced, and the resin is more efficiently and more normatively cleaned and replaced.
In the embodiment, a plurality of liquid level sensors 19 are arranged inside the cleaning tank 10, and the plurality of liquid level sensors 19 are sequentially arranged inside the cleaning tank 10 along the vertical direction; the level sensor 19 is used to monitor the water level inside the wash tank 10. Specifically, in order to avoid the water yield that adds when wasing at every turn, resin volume and washing degree discordance lead to many batches of resin property difference, set up a plurality of level sensor 19 along vertical direction inside washing jar 10 to detect the resin volume and the water yield that add through level sensor 19, guarantee that the washing of resin is more normal and convenient, reduce the use of manpower, also just can reduce the error to a certain extent.
In the embodiment, a conical funnel 18 is arranged in the cleaning tank 10 close to the bottom wall, and the small end of the conical funnel 18 is arranged close to the bottom wall of the cleaning tank 10; the small opening end of the conical funnel 18 is connected in a conducting manner with the discharge pipe 13. Specifically, the conical funnel 18 is arranged in the cleaning tank 10, so that the resin after cleaning is discharged from the discharge pipe 13 more quickly and completely, and repeated cleaning caused by incomplete resin discharge is avoided, and the cleaning efficiency is reduced.
The end of the feeding pipe 11 close to the cleaning tank 10 in this embodiment is provided with a feeding electromagnetic valve 12, and the feeding electromagnetic valve 12 is electrically connected with a liquid level sensor 19. Specifically, after the well-cleaned resin is discharged from the discharge pipe 13, the liquid level in the cleaning tank 10 drops, at this time, the liquid level sensor 19 detects the drop of the liquid level, so that the feeding electromagnetic valve 12 is opened, the resin enters the cleaning tank 10, when a certain amount of resin is contained in the cleaning tank 10, the liquid level sensor 19 is triggered again, the feeding electromagnetic valve 12 is closed, and the injection of the resin is stopped. Therefore, manual intervention is avoided, the use of manpower is reduced, and each cleaning operation is carried out under the same parameter condition.
In this embodiment, a plurality of water holes are uniformly formed on the side wall of the conical funnel 18, and the diameter of the water holes is smaller than that of the resin particles; the water inlet has been seted up to washing jar 10 diapire, inlet tube 15 and the sealed turn-on connection of inlet hole. Specifically, from the cone funnel 18 and wash between the jar 10 diapire intake, water through the water hole of cone funnel 18 again with wash the resin contact in the jar 10 like this, not only can make the resin and the water of each position fully contact like this, water can also play the effect of the resin that constantly rolls, makes the washing of resin more thorough.
In this embodiment, a water inlet solenoid valve 16 is disposed at one end of the water inlet pipe 15 close to the cleaning tank 10, and the water inlet solenoid valve 16 is electrically connected to the liquid level sensor 19. Specifically, similar to the function of the feeding electromagnetic valve 12, the automatic water feeding is realized by matching the water feeding electromagnetic valve 16 with the liquid level sensor 19, so that the manual intervention is reduced, the use of manpower is reduced, and the error can be avoided as much as possible.
The upper end of the cleaning tank 10 in this embodiment is connected with a strainer 17; the strainer 17 is connected with the drain pipe 110; the side wall of the strainer 17 in the cleaning tank 10 is provided with a plurality of filter holes, and the diameter of the filter holes is smaller than that of the resin particles. Specifically, a certain amount of resin fragments, which are generally smaller in volume than normal resin and also in density than normal resin, are present in the resin, so that the resin fragments pass through the filter holes of the drainpipe 17 and are finally discharged through the drainpipe 110 by the buoyancy of water, and the normal resin remains in the wash tank 10.
The inside of the strainer 17 in this embodiment is provided with a conductivity sensor; a discharge electromagnetic valve 14 is arranged at one end of the discharge pipe 13 close to the cleaning tank 10; the discharge solenoid valve 14 is electrically connected to the conductivity sensor. Specifically, in order to avoid repeated and long-time cleaning or incomplete cleaning, a conductivity sensor is arranged in the strainer 17, the conductivity of water in the cleaning tank 10 is detected through the conductivity sensor, when the conductivity of the water is within a certain range, it is judged that the resin cleaning is completed, and then the discharge electromagnetic valve 14 is driven to be opened, so that the resin enters the feeding barrel 30 through the discharge pipe 13. Therefore, the cleaning condition of the resin is detected by detecting the water quality, so that the cleaning condition is more standard and the time is saved.
The driving device in the embodiment comprises a lifting device and a rotating device; the lifting device is used for lifting the feeding barrel 30 to a feeding port of the resin tank 40; the lifting device comprises a pair of hydraulic cylinders 21 which are vertically arranged, and the feeding barrel 30 is fixedly connected with a connecting device; the connecting device comprises a fixed ring 29 fixed on the outer wall of the charging barrel and a pair of connecting rods 28 which are horizontally arranged and fixed on the fixed ring 29, and the pair of connecting rods 28 are symmetrically distributed along the central axis of the charging barrel 30; the extension rod 22 of a hydraulic cylinder 21 is connected to a connecting rod 28. Specifically, after a certain amount of resin is contained in the feeding barrel 30, the hydraulic cylinder 21 is started, and at this time, the feeding barrel 30 is lifted to a certain height by the hydraulic cylinder 21, so that the feeding barrels 30 and the feeding hopper of the resin tank 40 are located at the same height, and the resin in the feeding barrel 30 is conveniently poured into the resin tank 40 in the following process.
The rotating device in this embodiment is used to drive the feeding barrel to rotate along the connecting rod 28; one end of the connecting rod 28 far away from the fixed ring 29 is fixedly connected with a driven gear 27; the rotating device comprises a rotating driving device for driving the driven gear 27 to rotate; the rotary driving device comprises a driving gear 26 engaged with the driven gear 27, a driven pulley 25 coaxially arranged with the driving gear 26, and a driving pulley 23 for driving the driven pulley 25 to rotate, wherein the driving pulley 23 and the driven pulley 25 are connected through a transmission belt 24. Specifically, through rotating driving pulley 23, drive driven pulley 25 and rotate, driven pulley 25 drives driving gear 26 again and rotates, and then drives driven gear 27 and rotates, and driven gear 27 again with connecting rod 28 fixed connection, the rotation of connecting rod 28 finally drives charging bucket 30 slope for resin in charging bucket 30 enters into resin tank 40, accomplishes a resin and pours into the operation into. In addition, the rocker 210 can be fixedly connected to the shaft of the driving pulley 23, and the driving pulley 23 can be rotated more conveniently and more labor-saving by using the rocker 210; or a motor can be fixedly connected to the shaft of the driving belt wheel 23, automatic rotation is realized through the motor, and automatic feeding can be realized by electrically connecting the motor with the liquid level sensor 19 and the discharging electromagnetic valve 14. However, in order to make the apparatus more compact and reduce the failure rate, the joystick 210 may be rotated manually.
In summary, the automatic cleaning and circulating device for cooling water in a converter valve according to the present invention realizes automatic filling and discharging of resin and water by providing the level sensor 19 in the cleaning tank 10, and after the resin cleaning is completed, the resin flowing into the charging basket 30 is quickly and conveniently filled into the resin tank 40 by the driving device. Not only effectively improve washing, the change efficiency of resin, reduced the waste of manpower, still made the washing and the change of resin more standardized.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a cold water self-cleaning circulating device in converter valve which characterized in that: comprises a resin cleaning device and a resin filling device which is communicated and connected with the resin cleaning device;
the resin cleaning device comprises a cleaning tank, and the cleaning tank is in conduction connection with a water inlet pipe, a feed pipe, a discharge pipe and a drain pipe;
the resin filling device comprises a feeding barrel and a driving device, wherein the feeding barrel is connected with the discharging pipe in a conduction mode, and one end of the discharging pipe is far away from the cleaning tank, and the driving device is used for driving the feeding barrel to lift and rotate.
2. The automatic cleaning and circulating device for cold water in a converter valve according to claim 1, wherein: a plurality of liquid level sensors are arranged inside the cleaning tank, and the liquid level sensors are sequentially arranged inside the cleaning tank along the vertical direction; the liquid level sensor is used for monitoring the water level inside the cleaning tank.
3. The automatic cleaning and circulating device for cold water in a converter valve according to claim 2, wherein: a conical funnel is arranged in the cleaning tank and close to the bottom wall, and the small-opening end of the conical funnel is arranged close to the bottom wall of the cleaning tank; the small opening end of the conical funnel is connected with the discharge pipe in a conduction mode.
4. The automatic cleaning and circulating device for cold water in a converter valve according to claim 2, wherein: the inlet pipe is close to the one end of wasing the jar is equipped with the feeding solenoid valve, the feeding solenoid valve with the level sensor electricity is connected.
5. The automatic cleaning and circulating device for cold water in a converter valve according to claim 3, wherein: a plurality of water holes are uniformly formed in the side wall of the conical hopper, and the diameter of each water hole is smaller than that of the resin particle; the water inlet hole has been seted up to the washing jar diapire, the inlet tube with the sealed turn-on connection of inlet hole.
6. The automatic cleaning and circulating device for cold water in a converter valve according to claim 5, wherein: the inlet tube is close to the one end of wasing the jar is equipped with into water solenoid valve, the solenoid valve of intaking with the level sensor electricity is connected.
7. The automatic cleaning and circulating device for cold water in a converter valve according to claim 1, wherein: the upper end of the cleaning tank is connected with a strainer in a conduction manner; the water filter pipe is communicated and connected with the drain pipe;
and a plurality of filter holes are formed in the side wall of the water filter pipe positioned in the cleaning tank, and the diameter of each filter hole is smaller than that of the resin particles.
8. The automatic cleaning and circulating device for cold water in a converter valve according to claim 7, wherein: a conductivity sensor is arranged inside the water filtering pipe; a discharge electromagnetic valve is arranged at one end of the discharge pipe close to the cleaning tank; the discharging electromagnetic valve is electrically connected with the conductivity sensor.
9. The automatic cleaning and circulating device for cold water in a converter valve according to claim 1, wherein: the driving device comprises a lifting device and a rotating device; the lifting device is used for lifting the feeding barrel to a feeding port of the resin tank;
the lifting device comprises a pair of hydraulic cylinders which are vertically arranged, and the feeding barrel is fixedly connected with a connecting device; the connecting device comprises a fixed ring fixed on the outer wall of the feeding barrel and a pair of horizontally arranged connecting rods fixed on the fixed ring, and the pair of connecting rods are symmetrically distributed along the central axis of the feeding barrel; and the telescopic rod of the hydraulic cylinder is connected with the connecting rod.
10. The automatic cleaning and circulating device for cold water in a converter valve according to claim 9, wherein: the rotating device is used for driving the feeding barrel to rotate along the connecting rod; one end of the connecting rod, which is far away from the fixed ring, is fixedly connected with a driven gear; the rotating device comprises a rotating driving device for driving the driven gear to rotate;
the rotary driving device comprises a driving gear meshed with the driven gear, a driven belt wheel coaxially arranged with the driving gear and a driving belt wheel used for driving the driven belt wheel to rotate, and the driving belt wheel is connected with the driven belt wheel through a transmission belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011134626.3A CN112337513A (en) | 2020-10-21 | 2020-10-21 | Converter valve inner cooling water self-cleaning circulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011134626.3A CN112337513A (en) | 2020-10-21 | 2020-10-21 | Converter valve inner cooling water self-cleaning circulating device |
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| Publication Number | Publication Date |
|---|---|
| CN112337513A true CN112337513A (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011134626.3A Pending CN112337513A (en) | 2020-10-21 | 2020-10-21 | Converter valve inner cooling water self-cleaning circulating device |
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| CN (1) | CN112337513A (en) |
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| JP2000213278A (en) * | 1999-01-20 | 2000-08-02 | Taisei Corp | Method for connecting shield tunnel |
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2020
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