CN110755922A - Sewage recycling system of iron and steel smelting raw material plant - Google Patents
Sewage recycling system of iron and steel smelting raw material plant Download PDFInfo
- Publication number
- CN110755922A CN110755922A CN201910970669.6A CN201910970669A CN110755922A CN 110755922 A CN110755922 A CN 110755922A CN 201910970669 A CN201910970669 A CN 201910970669A CN 110755922 A CN110755922 A CN 110755922A
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- Prior art keywords
- sedimentation tank
- sewage
- tank
- overflow
- water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A sewage recycling system for a steel smelting raw material plant comprises a sewage sedimentation tank and overflow tanks arranged around the sewage sedimentation tank, wherein a water inlet of the sewage sedimentation tank is arranged on the side wall of the lower end of the sedimentation tank close to the bottom, a water outlet of the sewage sedimentation tank is arranged on the side wall of the sedimentation tank close to the upper part, and a first screen matched with the inner wall of the sedimentation tank is arranged in the sedimentation tank below the water outlet; the top of the overflow tank is lower than the top of the sedimentation tank, the water outlet of the overflow tank is positioned close to the bottom of the overflow tank, a drain pipeline connected with the water outlet is provided with a drain valve, and the tail end of the drain pipeline is communicated with a sewage collection station; a second screen matched with the inner wall of the overflow tank is arranged at the middle lower part of the overflow tank; the overflow tank is internally provided with an automatic water level monitoring device, so that the system can prevent materials in the sedimentation tank from being washed away by rainwater, improve the recovery rate and protect the environment.
Description
Technical Field
The invention belongs to the technical field of steel smelting, and particularly relates to a sewage recycling system for a steel smelting raw material plant.
Background
Iron ore is refined into pig iron, then the pig iron is refined into steel, the raw materials mainly comprise iron ore and coke, and the raw materials are crushed and smashed in a raw material factory, so that sewage generated in the raw material factory for iron and steel smelting mainly contains impurities such as coal dust, iron ore powder and the like.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a sewage recycling system for a steel smelting raw material plant, which prevents materials in a sedimentation tank from being washed away by rainwater, improves the recycling rate and protects the environment.
The invention provides a sewage recycling system for a steel smelting raw material plant, which comprises a sewage sedimentation tank and overflow tanks arranged around the sewage sedimentation tank, wherein a water inlet of the sewage sedimentation tank is arranged on the side wall of the lower end of the sedimentation tank close to the bottom, a water outlet of the sewage sedimentation tank is arranged on the side wall of the sedimentation tank close to the upper part, and a first screen matched with the inner wall of the sedimentation tank is arranged in the sedimentation tank below the water outlet;
the top of the overflow tank is lower than the top of the sedimentation tank, the water outlet of the overflow tank is positioned close to the bottom of the overflow tank, a drain pipeline connected with the water outlet is provided with a drain valve, and the tail end of the drain pipeline is communicated with a sewage collection station; a second screen matched with the inner wall of the overflow tank is arranged at the middle lower part of the overflow tank;
the overflow pool is internally provided with an automatic water level monitoring device, the automatic water level monitoring device comprises a water level sensor, a water drain valve and a microcontroller, and the water level sensor and the water drain valve are connected with the microcontroller; the water level sensor is used for monitoring the water level in the overflow tank in real time and transmitting collected water level height data signals to the microcontroller in real time, and the microcontroller is used for analyzing and processing the received data signals and starting the water drainage valve to drain water when the data exceed a set value.
Furthermore, a plurality of drainage pipelines are arranged in the overflow tank, and each drainage pipeline is provided with a drain valve.
Further, the diameter of the mesh of the second screen is smaller than that of the mesh of the first screen.
The water level monitoring device is simple in structure, the water inlet of the sedimentation tank is arranged at the lower part, the water outlet is arranged at the upper part, and the screen is arranged at the part below the water outlet, so that materials are prevented from being brought out when sewage overflows, even if a small amount of materials overflow from the screen, the materials are secondarily filtered by the screen arranged in the overflow tank in the process of entering the overflow tank, the water level monitoring device arranged in the overflow tank can monitor the water level condition in real time, when the water level exceeds a set value, the water drain valve is started to drain the sewage in the overflow tank, the sewage in the sedimentation tank always overflows and falls into the overflow tank, and the material loss is prevented while the environment is protected.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. the sewage treatment system comprises a sewage sedimentation tank, 2, an overflow tank, 3, a first screen, 4, a drainage pipeline, 5, a water escape valve, 6, a sewage collection station, 7 and a second screen.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, the sewage recycling system for the iron and steel smelting raw material plant comprises a sewage sedimentation tank 1 and an overflow tank 2 arranged around the sewage sedimentation tank 1, wherein a water inlet of the sewage sedimentation tank 1 is arranged on the side wall of the lower end of the sedimentation tank close to the bottom, a water outlet is arranged on the side wall of the sedimentation tank close to the upper part, and a screen mesh I3 matched with the inner wall of the sedimentation tank is arranged in the sewage sedimentation tank 1 below the water outlet;
the top of the overflow tank 2 is lower than the top of the sewage sedimentation tank 1, the water outlet of the overflow tank 2 is positioned close to the bottom, a drain pipeline 4 connected with the water outlet is provided with a drain valve 5, and the tail end of the drain pipeline 4 is communicated with a sewage collection station 6; a second screen 7 matched with the inner wall of the overflow tank 2 is arranged at the middle lower part of the overflow tank 2;
an automatic water level monitoring device is arranged in the overflow tank 2 and comprises a water level sensor, a water drain valve and a microcontroller, and the water level sensor and the water drain valve 5 are connected with the microcontroller; the water level sensor is used for monitoring the water level in the overflow tank 2 in real time and transmitting collected water level height data signals to the microcontroller in real time, and the microcontroller is used for analyzing and processing the received data signals and starting the drain valve 5 to drain water when the data exceed a set value.
In order to accelerate the sewage discharge efficiency, a plurality of drainage pipelines are arranged in the overflow tank 4, and a drain valve 5 is arranged on each drainage pipeline.
In order to realize the secondary filtration of the materials, the mesh diameter of the second screen 7 is smaller than that of the first screen 3.
The water inlet through with the sedimentation tank sets up in the lower part, the delivery port sets up on upper portion, and the part below the delivery port sets up the screen cloth, take the material out when having avoided sewage to spill over, even if there is a small amount of material to spill over from the screen cloth, carry out secondary filter by the screen cloth that sets up in the overflow tank at the in-process that gets into the overflow tank, and the water level monitoring device that sets up in the overflow tank can the real-time supervision water level condition, when the water level exceeded the setting value, start the drain valve and excrete the sewage in the overflow tank, guaranteed that the sewage in the sedimentation tank overflows all the time and falls to the overflow tank in, still be favorable to the environmental protection when having prevented the loss of.
Claims (3)
1. A sewage recycling system for a steel smelting raw material plant comprises a sewage sedimentation tank and is characterized by further comprising overflow tanks arranged around the sewage sedimentation tank, wherein a water inlet of the sewage sedimentation tank is arranged on the side wall of the lower end of the sedimentation tank close to the bottom, a water outlet of the sewage sedimentation tank is arranged on the side wall of the sedimentation tank close to the upper part, and a first screen matched with the inner wall of the sedimentation tank is arranged in the sedimentation tank below the water outlet;
the top of the overflow tank is lower than the top of the sedimentation tank, the water outlet of the overflow tank is positioned close to the bottom of the overflow tank, a drain pipeline connected with the water outlet is provided with a drain valve, and the tail end of the drain pipeline is communicated with a sewage collection station; a second screen matched with the inner wall of the overflow tank is arranged at the middle lower part of the overflow tank;
the overflow pool is internally provided with an automatic water level monitoring device, the automatic water level monitoring device comprises a water level sensor, a water drain valve and a microcontroller, and the water level sensor and the water drain valve are connected with the microcontroller; the water level sensor is used for monitoring the water level in the overflow tank in real time and transmitting collected water level height data signals to the microcontroller in real time, and the microcontroller is used for analyzing and processing the received data signals and starting the water drainage valve to drain water when the data exceed a set value.
2. The sewage recycling system of the iron and steel smelting raw material plant according to claim 1, wherein a plurality of drainage pipelines are arranged in the overflow tank, and each drainage pipeline is provided with a drainage valve.
3. The sewage recycling system of the iron and steel smelting raw material plant according to claim 1 or 2, wherein the diameter of the screen mesh II is smaller than that of the screen mesh I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910970669.6A CN110755922A (en) | 2019-10-14 | 2019-10-14 | Sewage recycling system of iron and steel smelting raw material plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910970669.6A CN110755922A (en) | 2019-10-14 | 2019-10-14 | Sewage recycling system of iron and steel smelting raw material plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110755922A true CN110755922A (en) | 2020-02-07 |
Family
ID=69331702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910970669.6A Pending CN110755922A (en) | 2019-10-14 | 2019-10-14 | Sewage recycling system of iron and steel smelting raw material plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110755922A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759531A (en) * | 2016-12-30 | 2017-05-31 | 华中科技大学 | A kind of self-adapting large underground structure lets out drainage pressure-reducing anti-floating system and method |
| US20170233275A1 (en) * | 2016-02-12 | 2017-08-17 | Denny Hastings Flp 14 | Transportable multi-chamber water filtration systems |
| CN109399817A (en) * | 2017-08-16 | 2019-03-01 | 福州创源同方水务有限公司 | Sewage-treatment plant and its working method |
-
2019
- 2019-10-14 CN CN201910970669.6A patent/CN110755922A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170233275A1 (en) * | 2016-02-12 | 2017-08-17 | Denny Hastings Flp 14 | Transportable multi-chamber water filtration systems |
| CN106759531A (en) * | 2016-12-30 | 2017-05-31 | 华中科技大学 | A kind of self-adapting large underground structure lets out drainage pressure-reducing anti-floating system and method |
| CN109399817A (en) * | 2017-08-16 | 2019-03-01 | 福州创源同方水务有限公司 | Sewage-treatment plant and its working method |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200207 |