CN115920522A - Recycling system and process method for slag flushing discharged water - Google Patents
Recycling system and process method for slag flushing discharged water Download PDFInfo
- Publication number
- CN115920522A CN115920522A CN202211586832.7A CN202211586832A CN115920522A CN 115920522 A CN115920522 A CN 115920522A CN 202211586832 A CN202211586832 A CN 202211586832A CN 115920522 A CN115920522 A CN 115920522A
- Authority
- CN
- China
- Prior art keywords
- water
- slag
- flushing
- self
- recycling
- 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.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Abstract
The invention provides a system for recycling discharged water after slag flushing and a process method thereof, wherein the system comprises the following steps: the invention mainly utilizes equipment such as a water pump, a filter, a sedimentation tank, a drainage pipeline and the like, thereby achieving the effects of zero emission of a slag flushing process, energy conservation and reduction of the drainage treatment pressure of a subsequent process.
Description
Technical Field
The invention relates to the technical field of ironmaking equipment, in particular to a system for recycling water discharged outside slag flushing and a process method thereof.
Background
In the blast furnace smelting process, slag flushing is an important auxiliary production process, the slag discharged from the blast furnace enters a slag flushing system for cooling and then is transported out, a large amount of water is needed for cooling in the process, the existing slag flushing is a Yinba process, a cooling water system is recycled, and as the rotary drum cleaning and shaft seal cooling are realized by continuously entering an external water source and are greater than the evaporation capacity of the slag flushing system, certain external drainage exists, and energy is wasted; meanwhile, the external drainage index of the slag flushing system is poor, suspended matters reach 30-40%, and hardening is easy to occur, so that the subsequent drainage is affected.
Therefore, a system for recycling the discharged water after slag flushing and a process method thereof need to be designed.
Disclosure of Invention
According to the technical problem that the existing slag flushing system is poor in drainage index and prone to hardening, the system for recycling the discharged water of the slag flushing system and the process method thereof are provided. The invention mainly utilizes the installation of equipment such as a water pump, a filter, a sedimentation tank, a drainage pipeline and the like, thereby achieving the effects of zero discharge of the slag flushing process, energy conservation and reduction of the drainage treatment pressure of the subsequent process.
The technical means adopted by the invention are as follows:
the utility model provides a towards outer drainage reuse system of sediment which characterized in that includes: yinba process systems, sedimentation system and circulation water supply system, the play water end of Yinba process systems with sedimentation system's the end of intaking links to each other, sedimentation system's play water end with circulation water supply system's water inlet links to each other, circulation water supply system's delivery port with the water inlet of Yinba process systems links to each other and forms the closed loop water route.
Further, the sedimentation system comprises a pressurized water pump I and a sedimentation tank, wherein the pressurized water pump is arranged at a water inlet of the sedimentation tank.
Furthermore, the circulating water supply system comprises a pressure water pump II and a self-cleaning filter, the pressure water pump II is arranged at a water inlet of the self-cleaning filter, and a water inlet of the pressure water pump II is connected with a water outlet of the sedimentation tank.
Furthermore, a water outlet of the self-cleaning filter is connected with a slag flushing rotary drum and a shaft seal water system of the Yinba process system, and a matched valve is arranged between the self-cleaning filter and the slag flushing rotary drum as well as between the self-cleaning filter and the shaft seal water system.
Furthermore, the side surface of the wall of the sedimentation tank is a detachable steel plate.
Furthermore, a slag cotton iron sheet heat insulation structure is arranged on the Yinba process system, the sedimentation system and a water conveying pipeline outside the circulating water supply system.
A process method of a system for recycling discharged water after slag washing is characterized by comprising the following steps:
step S1: pressurizing the discharged water of the Yinba process system by a pressurizing water pump I and then feeding the pressurized water into the sedimentation tank;
step S2: the precipitated outer drainage water is pressurized by a pressurizing water pump II and passes through the self-cleaning filter;
and step S3: the discharged water treated by the self-cleaning filter is sent back to the slag flushing rotary drum and the shaft sealing water system through pipelines;
furthermore, the sedimentation tank is cleaned once in 4 months and is matched with blast furnace damping down for construction.
Compared with the prior art, the invention has the following advantages:
1. according to the system and the process method for recycling the discharged water after slag flushing, provided by the invention, the effects of zero discharge of the slag flushing process, energy conservation and reduction of the water discharging treatment pressure of the subsequent process are achieved by installing equipment such as a water pump, a filter, a sedimentation tank, a water discharging pipeline and the like.
Based on the reason, the invention can be widely popularized in the fields of ironmaking equipment technology and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow schematic diagram of a system for recycling water discharged outside flushing slag and a process method thereof.
In the figure: 1. a Yinba process system; 2. a pressurized water pump I; 3. a sedimentation tank; 4. a pressure water pump II; 5. a self-cleaning filter.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
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 only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus that are known by one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. 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, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in figure 1, the invention provides a system for recycling slag flushing discharged water and a process method thereof, wherein the system comprises the following steps: the Yinba process system 1, the sedimentation system and the circulating water supply system, wherein the water outlet end of the Yinba process system 1 is connected with the water inlet end of the sedimentation system, the water outlet end of the sedimentation system is connected with the water inlet of the circulating water supply system, and the water outlet of the circulating water supply system is connected with the water inlet of the Yinba process system 1 to form a closed loop water path; the sedimentation system comprises a pressurized water pump I2 and a sedimentation tank 3, and the pressurized water pump is arranged at a water inlet of the sedimentation tank 3; the circulating water supply system comprises a pressurized water pump II 4 and a self-cleaning filter 5, the pressurized water pump II 4 is arranged at a water inlet of the self-cleaning filter 5, and a water inlet of the pressurized water pump II 4 is connected with a water outlet of the sedimentation tank 3; the water outlet of the self-cleaning filter 5 is connected with the slag flushing rotary drum and the shaft seal water system of the Yinba process system 1, and a matched valve is arranged between the self-cleaning filter 5 and the slag flushing rotary drum as well as between the self-cleaning filter and the shaft seal water system; the side surface of the wall of the sedimentation tank 3 is a detachable steel plate; and a slag cotton iron sheet heat insulation structure is arranged on the Yinba process system 1, the sedimentation system and the external water conveying pipeline of the circulating water supply system.
A process method of a system for recycling discharged water outside flushing slag is characterized by comprising the following steps:
step S1: the discharged water of the Yinba process system 1 is pressurized by a pressurizing water pump I2 and enters the sedimentation tank 3;
step S2: the precipitated discharged water is pressurized by a pressurizing water pump II 4 and passes through the self-cleaning filter 5;
and step S3: the discharged water treated by the self-cleaning filter 5 is sent back to the slag flushing rotary drum and the shaft seal water system through pipelines;
and step S4: the sedimentation tank is cleaned once in 3 four months and is matched with blast furnace damping down for construction.
Example 1
As shown in figure 1, the invention provides a system for recycling the discharged water after slag washing and a process method thereof.
The discharged water of the slag flushing Yiba process system 1 is pressurized by a pressurizing water pump I2 and enters a sedimentation tank 3, and the water is pressurized by a pressurizing water pump II 4 after sedimentation and is sent back to the slag flushing rotary drum and the shaft seal for recycling through a self-cleaning filter 5; the slag flushing rotary drum and the shaft seal water system are standby, matched valves are installed, and when the slag flushing rotary drum and the shaft seal water system have faults, production is automatically switched to be guaranteed.
The sedimentation tank 3 is cleaned once in 4 months in principle, is matched with blast furnace damping down for construction, and is provided with a detachable steel plate on the side surface of the tank wall, so that a trencher can conveniently enter.
The external water conveying pipeline is provided with a slag cotton iron sheet for heat preservation, and the pipeline does not adopt heat tracing measures because the temperature of circulating water is between 55 and 80 ℃.
According to the operation condition of the on-site slag flushing process, the zero discharge of the slag flushing process is realized by installing equipment such as a water pump, a filter, a sedimentation tank, a drainage pipeline and the like, the energy is saved, and the drainage treatment pressure of the subsequent process is reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a towards outer drainage reuse system of sediment which characterized in that includes: yinba process systems, sedimentation system and circulation water supply system, the play water end of Yinba process systems with sedimentation system's the end of intaking links to each other, sedimentation system's play water end with circulation water supply system's water inlet links to each other, circulation water supply system's delivery port with the water inlet of Yinba process systems links to each other and forms the closed loop water route.
2. The system for recycling the discharged flushing slag water of claim 1, wherein the sedimentation system comprises a pressurized water pump I and a sedimentation tank, and the pressurized water pump is arranged at a water inlet of the sedimentation tank.
3. The system for recycling the discharged water after flushing slag according to claim 2, characterized in that the circulating water supply system comprises a pressurized water pump II and a self-cleaning filter, the pressurized water pump II is arranged at a water inlet of the self-cleaning filter, and a water inlet of the pressurized water pump II is connected with a water outlet of the sedimentation tank.
4. The system for recycling the water discharged outside the flushing slag according to claim 3, wherein a water outlet of the self-cleaning filter is connected with a flushing slag rotary drum and a shaft seal water system of the Yinba process system, and a matched valve is arranged between the self-cleaning filter and the flushing slag rotary drum as well as between the self-cleaning filter and the shaft seal water system.
5. The system for recycling the discharged water after flushing slag of claim 2, wherein the side surface of the wall of the sedimentation tank is a detachable steel plate.
6. The system for recycling the discharged water after flushing slag according to claim 1, wherein a slag cotton iron sheet heat insulation structure is arranged on the external water conveying pipelines of the Yinba process system, the sedimentation system and the circulating water supply system.
7. A process method of a slag flushing outward water recycling system according to any claim of claims 1-6, characterized in that the process method comprises:
step S1: pressurizing the discharged water of the Yinba process system by a pressurizing water pump I and then feeding the pressurized water into the sedimentation tank;
step S2: the precipitated discharged water is pressurized by a pressurizing water pump II and passes through the self-cleaning filter;
and step S3: and the discharged water treated by the self-cleaning filter is sent back to the slag flushing rotary drum and the shaft seal water system through pipelines.
8. The process method of the slag flushing external drainage recycling system according to claim 7, characterized in that the sedimentation tank is cleaned once in 4 months and is constructed in cooperation with blast furnace damping down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211586832.7A CN115920522A (en) | 2022-12-09 | 2022-12-09 | Recycling system and process method for slag flushing discharged water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211586832.7A CN115920522A (en) | 2022-12-09 | 2022-12-09 | Recycling system and process method for slag flushing discharged water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115920522A true CN115920522A (en) | 2023-04-07 |
Family
ID=86653769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211586832.7A Pending CN115920522A (en) | 2022-12-09 | 2022-12-09 | Recycling system and process method for slag flushing discharged water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115920522A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1769498A (en) * | 2004-11-05 | 2006-05-10 | 马鞍山钢铁股份有限公司 | Blast furnace cinder water quenching processing unit |
| CN103073147A (en) * | 2013-02-17 | 2013-05-01 | 莱芜钢铁集团有限公司 | Turbid circulating water treatment method and system |
| CN203128593U (en) * | 2013-01-23 | 2013-08-14 | 中冶南方工程技术有限公司 | Efficient blast furnace slag-washing water waste heat recycling system adopting INBA process |
| CN203400575U (en) * | 2013-08-06 | 2014-01-22 | 云南大红山管道有限公司 | Water processing system in dehydration process of refined iron ore pulp |
| CN205473843U (en) * | 2016-02-26 | 2016-08-17 | 江苏耐尔冶电集团有限公司 | Energy -conserving high -efficient blast furnace water conservancy towards slag system all |
| CN206069908U (en) * | 2016-08-31 | 2017-04-05 | 云南德胜钢铁有限公司 | A kind of blast furnace ironmaking water circulation system |
| CN109897921A (en) * | 2017-12-11 | 2019-06-18 | 上海梅山钢铁股份有限公司 | English bar washing slag water zero-discharge treatment system |
| CN109945174A (en) * | 2019-04-04 | 2019-06-28 | 华北水利水电大学 | Wet bottom boiler washing slag water closed cycle utilizes system |
| CN211695090U (en) * | 2020-01-19 | 2020-10-16 | 山西高义钢铁有限公司 | Heating system utilizing waste heat of blast furnace slag flushing water |
-
2022
- 2022-12-09 CN CN202211586832.7A patent/CN115920522A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1769498A (en) * | 2004-11-05 | 2006-05-10 | 马鞍山钢铁股份有限公司 | Blast furnace cinder water quenching processing unit |
| CN203128593U (en) * | 2013-01-23 | 2013-08-14 | 中冶南方工程技术有限公司 | Efficient blast furnace slag-washing water waste heat recycling system adopting INBA process |
| CN103073147A (en) * | 2013-02-17 | 2013-05-01 | 莱芜钢铁集团有限公司 | Turbid circulating water treatment method and system |
| CN203400575U (en) * | 2013-08-06 | 2014-01-22 | 云南大红山管道有限公司 | Water processing system in dehydration process of refined iron ore pulp |
| CN205473843U (en) * | 2016-02-26 | 2016-08-17 | 江苏耐尔冶电集团有限公司 | Energy -conserving high -efficient blast furnace water conservancy towards slag system all |
| CN206069908U (en) * | 2016-08-31 | 2017-04-05 | 云南德胜钢铁有限公司 | A kind of blast furnace ironmaking water circulation system |
| CN109897921A (en) * | 2017-12-11 | 2019-06-18 | 上海梅山钢铁股份有限公司 | English bar washing slag water zero-discharge treatment system |
| CN109945174A (en) * | 2019-04-04 | 2019-06-28 | 华北水利水电大学 | Wet bottom boiler washing slag water closed cycle utilizes system |
| CN211695090U (en) * | 2020-01-19 | 2020-10-16 | 山西高义钢铁有限公司 | Heating system utilizing waste heat of blast furnace slag flushing water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106862180A (en) | A kind of CIP on-line cleaning systems control method | |
| CN106498106B (en) | Modified blast furnace soft water closed circulation system and method | |
| CN102021256A (en) | Circulating cooling water system of blast-furnace tuyere small sleeve | |
| CN115920522A (en) | Recycling system and process method for slag flushing discharged water | |
| CN206772125U (en) | A kind of portable board-like heat exchanger cleaning device | |
| CN207620084U (en) | A kind of wastewater from chemical industry blow-off line | |
| CN202021031U (en) | Processing device of alkali peeling process waste water | |
| CN211813486U (en) | Recycling system of rubber plug cleaning wastewater | |
| CN208009591U (en) | A kind of pipe-line system | |
| CN208669702U (en) | A kind of mortar pump cooling water circulation utilization apparatus | |
| CN209052501U (en) | Vacuum pump circulating water cooling system | |
| CN208661910U (en) | A kind of wiring board developing machine washing line recycles water-saving system | |
| CN208218392U (en) | A kind of slurry delivery system | |
| CN208038076U (en) | A kind of filter device | |
| CN108423752B (en) | Rotational flow pool | |
| CN207330973U (en) | Modified blast furnace soft water closed circulation system | |
| CN207246792U (en) | Produce the feed system of water | |
| CN102107195A (en) | Method for cleaning float flowmeter on line and circulating cooling water system | |
| CN215463226U (en) | Energy-saving desulfurization process water system | |
| CN219010472U (en) | Device for cleaning inner wall of waste acid pipeline | |
| CN105063733B (en) | A kind of vertical electroplating production facility | |
| CN210561233U (en) | Cooling water washing water delivery device for high-temperature direct-discharging water washing machine | |
| CN215946754U (en) | Multifunctional wharf piping station | |
| CN112665449B (en) | Full-automatic self-cleaning plate type heat exchange device and cleaning control method | |
| CN205860597U (en) | Compound fertilizer workshop cooling water circulation utilization apparatus |
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 |