CN210638785U - Blast furnace slag pool liquid level detection device - Google Patents
Blast furnace slag pool liquid level detection device Download PDFInfo
- Publication number
- CN210638785U CN210638785U CN201920530827.1U CN201920530827U CN210638785U CN 210638785 U CN210638785 U CN 210638785U CN 201920530827 U CN201920530827 U CN 201920530827U CN 210638785 U CN210638785 U CN 210638785U
- Authority
- CN
- China
- Prior art keywords
- liquid level
- connecting rod
- slag pool
- floating ball
- position transmitter
- 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.)
- Expired - Fee Related
Links
- 239000002893 slag Substances 0.000 title claims abstract description 48
- 239000007788 liquid Substances 0.000 title claims abstract description 45
- 238000001514 detection method Methods 0.000 title claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
A liquid level detection device for a blast furnace slag pool is provided with a floating ball placed in the slag pool, wherein the floating ball is connected to one end of a connecting rod, and the other end of the connecting rod is connected with a transmission device, so that the connecting rod swings along with the change of the height of the liquid level of the floating ball in the slag pool; the transmission device is connected with the position transmitter and transmits angle data formed between the connecting rod and the horizontal plane to the position transmitter; the position transmitter is connected with the liquid level controller, detects the angle formed between the connecting rod and the horizontal plane by the position transmitter, and converts the angle into the actual liquid level height of the slag pool through the liquid level controller. The device has the advantages that the device can overcome the influence of high slag content of the slag pool on liquid level measurement, can overcome the influence of steam of the slag pool on the liquid level measurement, can detect that an electronic component is led beside the slag pool and is not in direct contact with a medium of the slag pool, has low failure rate and long service life, is simple to install and convenient to debug, and can output 4-20mA standard signals to be connected into a PLC (programmable logic controller) so as to realize the remote monitoring of the liquid level in a duty room.
Description
Technical Field
The utility model relates to a metallurgical instrument detects technical field, in particular to blast furnace slag bath liquid level detection device.
Background
The blast furnace slag pool has complex environment, high slag content, large steam and high temperature, and has great influence on the on-line continuous measurement of the liquid level of the slag pool. The liquid level detecting instrument in the current market is not designed according to the special environment of the slag bath, and the contact type measuring instruments such as a cable type liquid level transmitter and the like have high failure rate, large maintenance amount, easy damage and increased maintenance cost; non-contact instruments such as radar level meters are affected by steam, so that the measuring effect is poor. The slag bath has no reliable and stable liquid level detection device, increases the workload of operators, is easy to overflow due to negligence of slag and water at any time, and has adverse effect on production continuity and working efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can realize the long-term stable blast furnace slag pond liquid level detection device who measures of blast furnace slag pond liquid level.
The utility model discloses a solution is such:
a liquid level detection device for a blast furnace slag pool is provided with a floating ball placed in the slag pool, wherein the floating ball is connected to one end of a connecting rod, and the other end of the connecting rod is connected with a transmission device, so that the connecting rod swings along with the change of the height of the liquid level of the floating ball in the slag pool; the transmission device is connected with the position transmitter and transmits angle data formed between the connecting rod and the horizontal plane to the position transmitter; the position transmitter is connected with the liquid level controller, detects the angle formed between the connecting rod and the horizontal plane by the position transmitter, and converts the angle into the actual liquid level height of the slag pool through the liquid level controller.
The more specific technical scheme also comprises the following steps: the transmission device comprises a support and a rotating shaft connected with the support and of a rotating structure, the connecting rod is fixed on the rotating shaft, the position transmitter is connected with the rotating shaft through a coupler, and the swinging data of the connecting rod when the connecting rod changes along with the height of the liquid level of the floating ball in the slag bath is transmitted to the position transmitter.
Liquid level height calculation principle:
the horizontal position ① of the floating ball on the tank surface is taken as a measurement zero point, H is the height of the slag tank, the height of the water level is H, H1 is the distance between the floating ball and the top of the slag tank, L is the length of a floating ball connecting rod, and alpha is an included angle between the floating ball connecting rod and the horizontal plane.
Height of water level H = H-H1
when α =0 °, H1= L × sin0 °, i.e., H = H;
when the floating ball is at a certain liquid level (II),
water level height H1= L × sin α, H = H-H1= H-L sin α;
therefore, the water level height h of the slag pool can be obtained by measuring the included angle α between the floating ball connecting rod and the horizontal plane.
The utility model has the advantages that:
1. the influence of high slag content of the slag pool on liquid level measurement can be overcome.
2. The influence of the slag pool steam on the liquid level measurement can be overcome.
3. The detection electronic component is led to the side of the slag pool and is not in direct contact with the slag pool medium, so that the failure rate of the equipment is low and the service life is long.
4. The device is simple to install and convenient to debug, and can output 4-20mA standard signals to be connected into the PLC so as to realize remote monitoring of the liquid level in a duty room.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of a blast furnace slag bath level detecting apparatus.
The parts of the drawings are detailed as follows: the device comprises a position transmitter 1, a transmission device 2, a floating ball 3, a slag pool 4, a connecting rod 5, a liquid level controller 6, a support 2-1, a rotating shaft 2-2 and a coupler 2-3.
Detailed Description
As shown in fig. 1, the utility model is provided with a floating ball 3 placed in a slag bath 4, the floating ball 3 is connected with one end of a connecting rod 5, and the other end of the connecting rod 5 is connected with a transmission device 2, so that the connecting rod 5 swings along with the height change of the liquid level of the floating ball 3 in the slag bath; the transmission device 2 is connected with the position transmitter 1 and transmits angle data formed between the connecting rod 5 and a horizontal plane to the position transmitter 1; the position transmitter 1 is connected with the liquid level controller 6, the angle formed between the connecting rod 5 and the horizontal plane is detected by the position transmitter 1, and the actual liquid level height of the slag pool is converted through the liquid level controller 6.
As shown in fig. 2, the transmission device 2 comprises a support 2-1 and a rotating shaft 2-2 connected with the support 2-1 to form a rotating structure, the connecting rod 5 is fixed on the rotating shaft 2-2, the position transmitter 1 is connected with the rotating shaft 2-2 through a coupler 2-3, when the connecting rod 5 changes along with the height of the liquid level of the floating ball 3 in the slag bath, the swinging data is converted into the rotating angle of the rotating shaft through the rotating shaft 2-2 and transmitted to the position transmitter 1, the running track of the floating ball is converted into the angular displacement stroke, the angular displacement is detected, and the coupler 2-3 adopts a bellows coupler.
The position transmitter adopts 4211 of American FISHER company, and the liquid level controller adopts a PLC controller of American AB company, so that the calculation of the liquid level is realized through programming.
Liquid level height calculation principle:
the horizontal position ① of the floating ball on the tank surface is taken as a measurement zero point, H is the height of the slag tank, the height of the water level is H, H1 is the distance between the floating ball and the top of the slag tank, L is the length of a floating ball connecting rod, and alpha is an included angle between the floating ball connecting rod and the horizontal plane.
Height of water level H = H-H1
when α =0 °, H1= L × sin0 °, i.e., H = H;
when the floating ball is at a certain liquid level (II),
water level height H1= L × sin α, H = H-H1= H-L sin α;
therefore, the water level height h of the slag pool can be obtained by measuring the included angle α between the floating ball connecting rod and the horizontal plane.
The utility model discloses trial in the factory, the result of use is better, and level measurement is accurate, and the instrument fault rate is low, satisfies the operation requirement.
Claims (2)
1. The utility model provides a blast furnace slag pool liquid level detection device which characterized in that: the floating ball (3) is arranged in the slag pool (4), the floating ball (3) is connected to one end of a connecting rod (5), and the other end of the connecting rod (5) is connected with a transmission device (2), so that the connecting rod (5) swings along with the change of the liquid level of the floating ball (3) in the slag pool; the transmission device (2) is connected with the position transmitter (1) and transmits angle data formed between the connecting rod (5) and the horizontal plane to the position transmitter (1); the position transmitter (1) is connected with the liquid level controller (6), the angle formed between the connecting rod (5) and the horizontal plane is detected by the position transmitter (1), and the actual liquid level height of the slag pool is converted through the liquid level controller (6).
2. The blast furnace slag pool liquid level detection device according to claim 1, characterized in that: transmission (2) include support (2-1), be connected for rotation structure's axis of rotation (2-2) with support (2-1), connecting rod (5) are fixed in axis of rotation (2-2), axis of rotation (2-2) are connected through shaft coupling (2-3) in position changer (1), and swing data transmission when connecting rod (5) follow floater (3) when the liquid level height changes in the slag bath to position changer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920530827.1U CN210638785U (en) | 2019-04-18 | 2019-04-18 | Blast furnace slag pool liquid level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920530827.1U CN210638785U (en) | 2019-04-18 | 2019-04-18 | Blast furnace slag pool liquid level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210638785U true CN210638785U (en) | 2020-05-29 |
Family
ID=70796079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920530827.1U Expired - Fee Related CN210638785U (en) | 2019-04-18 | 2019-04-18 | Blast furnace slag pool liquid level detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210638785U (en) |
-
2019
- 2019-04-18 CN CN201920530827.1U patent/CN210638785U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |