CN113718068A - Bottom filtration slag treatment system and control method thereof - Google Patents
Bottom filtration slag treatment system and control method thereof Download PDFInfo
- Publication number
- CN113718068A CN113718068A CN202111030381.4A CN202111030381A CN113718068A CN 113718068 A CN113718068 A CN 113718068A CN 202111030381 A CN202111030381 A CN 202111030381A CN 113718068 A CN113718068 A CN 113718068A
- Authority
- CN
- China
- Prior art keywords
- slag
- water
- filter tank
- flushing
- pump
- 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.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/032—Separating slag from liquid, e.g. from water, after quenching
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a bottom filtration slag treatment system and a control method thereof, and relates to the technical field of blast furnace slag treatment systems. The bottom filtration slag treatment system comprises a filter tank liquid level monitoring system, a slag flushing water pressure control system and a pipeline flow control system, wherein the filter tank liquid level monitoring system can accurately display the liquid level of the filter tank, so that slag catching with water or air intake of a water pump is avoided, leakage of slag-water mixture during loading is prevented, and the service life of the water pump can be prolonged; the slag flushing water pressure control system can realize the accurate control of the slag flushing water pressure, avoid the generation of foam slag and cotton slag, prolong the service life of the filter tank and avoid the explosion accident of slag flushing points; the pipeline flow control system realizes the water quantity balance of the hot water pipeline and the slag flushing pipeline, avoids frequently starting and stopping the hot water pump due to the unbalanced water quantity, prolongs the service life of the hot water pump, and provides powerful guarantee for one-key slag flushing.
Description
Technical Field
The invention relates to the technical field of blast furnace slag processing systems, in particular to a bottom filtration slag processing system and a control method thereof.
Background
In the existing blast furnace slag bottom filtration method treatment process, blast furnace slag flows into a granulation tower through a slag ditch, is smashed, quenched and granulated by high-speed water flow sprayed by a granulator arranged in the granulation tower, and is soaked and quenched in the granulation tower in one step; the quenched slag-water mixture flows into a filter tank through an outlet device, slag flushing water is filtered by a filter material in the filter tank and then sent to a cooling tower for recycling, and granulated blast furnace slag stays on the upper layer of the filter material of the filter tank and waits for slag grabbing during traveling.
The prior bottom filtration slag treatment system has the following problems in operation:
(1) it is difficult to determine the liquid level in the filtration tank. The water level in the filter tank is not easy to control, so that the situation of catching slag with water or air intake of a water pump occurs. If the water level in the filter tank is too high, the slag can be grabbed with water in the slag grabbing process, so that more slag-water mixture can be sprayed on the road surface in the automobile transportation process, the waste of water resources is caused, and the environment is polluted; if the heavy water level of the filter tank is too low, the water can not be pumped by the water pump, the air can be sucked, the service life of the water pump is seriously influenced, and the workload of workers is increased.
(2) The slag flushing water pressure is difficult to control. In the slag flushing process, the slag flushing pressure is too low, so that the slag cannot be completely crushed and granulated to generate a large amount of foam slag, the treatment capacity is increased for the next procedure, and the slag which is not crushed is too large to be more likely to explode to cause production accidents; the slag flushing pressure is too large, water slag, cotton dregs and the like with too small particle sizes can be generated, the filter layer can be blocked after entering the filter tank, the water permeability of the filter tank is influenced, hardening is accelerated, and the service life of the filter layer is shortened.
(3) The water balance is difficult to adjust. Under the condition that the hot water pump and the slag flushing pump are not controlled by frequency conversion, the water permeability of the filter tank can be changed due to different water and slag stocks in the filter tank and different production time, and the flow of the hot water pump and the slag flushing pump is difficult to reach balance. The flow of the hot water pump is larger than that of the slag flushing pump, so that the water level in the filter tank is reduced, and the hot water pump is enabled to intake air or repeatedly start and stop; the hot water pump flow is less than towards sediment pump flow, can make the water level in the filtering ponds rise, can produce the excessive time when the water level in the filtering ponds is too high, wastes water resource, the polluted environment.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention provides a bottom filter method slag treatment system and a control method thereof, aiming at the problems in the operation of the existing bottom filter method slag treatment system.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the utility model provides a sediment processing system of end filter method, includes filtering ponds liquid level monitored control system, towards sediment hydraulic control system and pipeline flow control system, pipeline flow control system's exit end is through towards the entrance point looks UNICOM of sediment water house steward with towards sediment hydraulic control system, towards sediment hydraulic control system and pass through inside the granulation tower emits into filtering ponds liquid level monitored control system with the sediment water, filtering ponds liquid level monitored control system's exit end is through managing and pipeline flow control system's entrance point looks UNICOM to realize the control to the filtering ponds liquid level, towards sediment hydraulic control and the control of water balance, thereby prolonged the life of water pump and filtering ponds, the water economy resource makes end filter method sediment processing technology environmental protection more.
According to a further technical scheme, the filter tank liquid level monitoring system comprises a slag receiving filter tank and a slag grabbing filter tank, wherein a camera I and a camera II are respectively arranged in the slag receiving filter tank and the slag grabbing filter tank, and the camera I and the camera III can feed back received signals to a computer screen of a main control room, so that the water level conditions of the slag receiving filter tank and the slag grabbing filter tank are monitored in real time.
According to the further technical scheme, the slag receiving filter tank is externally connected with a pressure transmitter I through a main filter pipe, the pressure transmitter I transmits a received signal to a computer screen of a main control room, so that the pressure is converted into the water level in the slag receiving filter tank, and the air inlet condition of a water pump caused by poor control of the water level in the slag receiving filter tank is avoided.
According to a further technical scheme, the slag receiving filter tank is communicated with a water pumping flow control block through a pipeline and is controlled to open and close through an electric valve I and an electric valve I which are sequentially arranged on the pipeline; the water pumping flow control block comprises a hot water pump I and a pressure gauge I which are sequentially externally connected with the outlet end of the slag receiving filter tank, and the opening and the closing of the hot water pump I and the pressure gauge I are controlled by an electric valve V and an adjusting valve I which are sequentially arranged on a pipeline.
According to the further technical scheme, the slag catching filter tank is externally connected with a pressure transmitter I through a main filter pipe, the pressure transmitter I transmits a received signal to a computer screen of a main control room, so that the pressure is converted into the water level in the slag catching filter tank, and the situation of water-carrying slag catching caused by poor control of the water level in the slag catching filter tank is avoided.
According to a further technical scheme, the slag grabbing filter tank is communicated with the water pumping flow control block through a pipeline, and is controlled to be opened and closed through an electric valve III and an electric valve IV which are sequentially arranged on the pipeline; the water pumping flow control block also comprises a hot water pump I and a pressure gauge I which are sequentially connected to the outlet end of the slag grabbing filter tank in an external connection mode, and the opening and the closing of the hot water pump I and the pressure gauge I are controlled by an electric valve VI and an adjusting valve II which are sequentially arranged on a pipeline.
According to a further technical scheme, the pumping flow control block is communicated with a cold water pool through a hot water main pipe; the hot water main pipe is provided with a flow transmitter I; the outlet end of the cold water tank is externally connected with a slag flushing flow control block through a pipeline. The slag flushing flow control block comprises a slag flushing pump I and a pressure gauge III which are started when slag is received, and the hot water pump III and the pressure gauge III are controlled to open and close through an electric valve VII and an adjusting valve III which are sequentially arranged on pipelines of the hot water pump III and the pressure gauge III; when the slag receiving filter tank is used, the water consumption for flushing slag is determined according to the slag quantity, and after the water quantity for flushing slag is determined, the water pumping flow of the hot water pump I is balanced with the water consumption for flushing slag of the slag pump I. When the two flows are found to be unbalanced, the flow of the hot water pump i can be adjusted by controlling the opening degree of the adjusting valve i.
According to a further technical scheme, the slag flushing flow control block further comprises a slag flushing pump I and a pressure gauge IV which are started during slag grabbing, and the opening and closing of the slag flushing pump I and the pressure gauge IV are controlled by an electric valve VIII and an adjusting valve IV which are sequentially arranged on pipelines of the slag flushing pump I and the pressure gauge IV. When the slag grabbing filter tank is used, the water consumption for slag flushing is determined according to the slag quantity, and after the water quantity for slag flushing is determined, the water pumping flow of the hot water pump I is balanced with the water consumption for slag flushing of the slag flushing pump I. When the two flows are unbalanced, the flow of the hot water pump I can be adjusted by controlling the opening degree of the adjusting valve I, so that the water level in the slag catching filter tank is prevented from dropping due to the fact that the flow of the hot water pump I is larger than the flow of the slag flushing pump I, and the hot water pump I enters air or the hot water pump is started and stopped repeatedly; and because the I flow of the hot water pump is less than the I flow of the slag flushing pump, the water level in the slag catching filter tank rises and overflows, so that the waste of water resources and the environmental pollution are caused.
In the further technical scheme, a cold water pool water replenishing pipe is externally connected above the cold water pool, and a water replenishing valve is arranged on the cold water pool; the cold water pool is combined with a signal fed back to a main control room computer by a liquid level meter arranged above the cold water pool so as to control the opening and closing of a water replenishing valve and realize water replenishing of the cold water pool; therefore, the problems that more slag-water mixture is sprayed on the road surface in the automobile transportation process, so that the waste of water resources and the environmental pollution are caused due to the fact that the water level in the slag receiving filter tank and the slag grabbing filter tank is too high and the slag grabbing process is carried with water in the slag grabbing process are avoided; and because the water levels in the slag receiving filter tank and the slag grabbing filter tank are too low, air can be introduced when the hot water pump I and the hot water pump I do not pump water, the service lives of the hot water pump I and the hot water pump I are seriously influenced, the workload of workers is increased, and the like.
According to the further technical scheme, the slag flushing flow control block is communicated with a slag flushing water pressure control system through a slag flushing water main pipe, and a flow transmitter I is arranged on the slag flushing water main pipe so as to display the flow on a main control room computer; the slag flushing water pressure control system comprises a slag flushing water supply pipe, one end of the slag flushing water supply pipe is connected with a water supply main pipe, a pressure transmitter III is arranged between the slag flushing water supply pipe and the water supply main pipe, and the water supply main pipe is communicated with the slag flushing water main pipe; the other end of the slag flushing water supply pipe is introduced into the granulation tower through a shunt pipe, opening and closing are controlled through a shunt pipe control valve arranged on the shunt pipe, and the opening degree of the shunt pipe control valve can be controlled through a computer in a master control room. When slag is flushed normally, the flow of the slag is required to be controlled to be 0.16-0.18 MPa, and when the pressure displayed by the pressure transmitter III is higher than a set value, the opening of a control valve of a shunt pipe can be increased to increase the flow of the shunt pipe, so that the aim of reducing the pressure of the slag is fulfilled; when the pressure displayed by the pressure transmitter III is lower than a set value, the opening of the shunt pipe control valve can be reduced to reduce the flow of the shunt pipe, so that the aim of increasing the slag flushing pressure is fulfilled.
A control method of a bottom filtration slag treatment system is provided with a slag receiving filter tank and a slag grabbing filter tank, and when the slag receiving filter tank receives slag, a travelling crane is used for grabbing slag in the filter tank, and the control method specifically comprises the following steps:
step one, receiving slag: after the slag control treatment operation area receives the slag flushing notice, a slag flushing pump I is firstly opened, water in a cold water tank is sent to a granulation tower, and then enters a slag receiving filter tank through a slag flushing channel;
step two, slag flushing: when the liquid level converted by a pressure transmitter I arranged on a main filter pipe below the slag receiving filter tank reaches more than 1.5m, a hot water pump I is started to pump the water in the slag receiving filter tank back to the cold water tank; after the slag flushing is finished, the slag flushing pump is closed, and the hot water pump is closed when the liquid level converted by the pressure transmitter I is less than 1.5 m;
step three, slag grabbing: carrying out slag grabbing in the filter tank by using a travelling crane; and after the slag grabbing is finished, the slag receiving filter tank and the slag grabbing filter tank can be interchanged and the steps can be repeated.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) according to the bottom filtration slag treatment system and the control method thereof, the liquid level monitoring system of the filter tank, the slag flushing water pressure control system and the pipeline flow control system are arranged, so that the control of the liquid level of the filter tank, the control of the slag flushing water pressure and the control of the water balance are realized, the service lives of a water pump and the filter tank are prolonged, water resources are saved, and the bottom filtration slag treatment process is more environment-friendly;
(2) the invention discloses a bottom filtration slag treatment system and a control method thereof, wherein the liquid level monitoring system of a filter tank comprises a slag receiving filter tank and a slag grabbing filter tank, a camera I and a camera II are respectively arranged in the slag receiving filter tank and the slag grabbing filter tank, and the camera I and the camera III can feed back received signals to a computer screen of a main control room, so that the water level conditions of the slag receiving filter tank and the slag grabbing filter tank are monitored in real time;
(3) according to the bottom filtration slag treatment system and the control method thereof, the slag receiving filter tank is externally connected with a pressure transmitter I through a main filter pipe, and the pressure transmitter I transmits a received signal to a main control room computer screen, so that the pressure is converted into the water level in the slag receiving filter tank, and the condition that the water pump enters air due to poor water level control in the slag receiving filter tank is avoided; the slag catching filter tank is externally connected with a pressure transmitter I through a main filter pipe, and the pressure transmitter I transmits a received signal to a computer screen of a main control room, so that the pressure is converted into the water level in the slag catching filter tank, the phenomenon of slag catching with water or air intake of a water pump is avoided, the leakage of slag-water mixture during loading is prevented, the water resource is saved, the environment is protected, and the service life of the water pump can be prolonged;
(4) the invention relates to a bottom filtration slag treatment system and a control method thereof.A water pumping flow control block is communicated with a cold water pool through a hot water main pipe; the hot water main pipe is provided with a flow transmitter I so as to display the flow on a computer in a main control room; the outlet end of the cold water tank is externally connected with a slag flushing flow control block through a pipeline. When the slag receiving filter tank is used, the water consumption for flushing slag is determined according to the slag quantity, and after the water quantity for flushing slag is determined, the water pumping flow of the hot water pump I is balanced with the water consumption for flushing slag of the slag pump I. When the two flows are not balanced, the flow of the hot water pump I can be adjusted by controlling the opening degree of the adjusting valve I; when the slag grabbing filter tank is used, the water consumption for slag flushing is determined according to the slag quantity, and after the water quantity for slag flushing is determined, the water pumping flow of the hot water pump I is balanced with the water consumption for slag flushing of the slag flushing pump I. When the two flows are unbalanced, the flow of the hot water pump I can be adjusted by controlling the opening degree of the adjusting valve I, so that the water level in the slag catching filter tank is prevented from dropping due to the fact that the flow of the hot water pump I is larger than the flow of the slag flushing pump I, and the hot water pump I enters air or the hot water pump is started and stopped repeatedly; and because the flow rate of the hot water pump I is less than that of the slag flushing pump I, the water level in the slag catching filter tank rises and overflows, so that the waste of water resources and the environmental pollution are caused;
(5) the invention relates to a bottom filtration slag treatment system and a control method thereof.A cold water pool water replenishing pipe is externally connected above a cold water pool, and a water replenishing valve is arranged on the cold water pool; the cold water pool is combined with a signal fed back to a main control room computer by a liquid level meter arranged above the cold water pool so as to control the opening and closing of a water replenishing valve and realize water replenishing of the cold water pool; therefore, the problems that more slag-water mixture is sprayed on the road surface in the automobile transportation process, so that the waste of water resources and the environmental pollution are caused due to the fact that the water level in the slag receiving filter tank and the slag grabbing filter tank is too high and the slag grabbing process is carried with water in the slag grabbing process are avoided; and because the water levels in the slag receiving filter tank and the slag grabbing filter tank are too low, air can be introduced when the hot water pump I and the hot water pump I do not pump water, the service lives of the hot water pump I and the hot water pump I are seriously influenced, the workload of workers is increased, and the like;
(6) the invention relates to a bottom filtration slag processing system and a control method thereof.A slag flushing flow control block is communicated with a slag flushing water pressure control system through a slag flushing water main pipe, and the slag flushing water main pipe is provided with a flow transmitter I so as to display the flow on a main control room computer; the slag flushing water pressure control system comprises a slag flushing water supply pipe, one end of the slag flushing water supply pipe is connected with a water supply main pipe, a pressure transmitter III is arranged between the slag flushing water supply pipe and the water supply main pipe, and the water supply main pipe is communicated with the slag flushing water main pipe; the other end of the flushing slag water supply pipe is introduced into the granulation tower through a shunt pipe, and the opening and closing of the shunt pipe control valve are controlled through a shunt pipe control valve arranged on the shunt pipe, the opening degree of the shunt pipe control valve can be controlled through a main control room computer, the flushing slag flow is required to be controlled to be 0.16-0.18 MPa during normal flushing slag, and when the pressure displayed by the pressure transmitter III is higher than a set value, the opening degree of the shunt pipe control valve can be increased to increase the flow of the shunt pipe, so that the aim of reducing the flushing slag pressure is fulfilled; when the pressure displayed by the pressure transmitter III is lower than a set value, the opening of the control valve of the shunt pipe can be reduced to reduce the flow of the shunt pipe, so that the purpose of increasing the slag flushing pressure is achieved, the generation of foam slag and cotton slag is avoided, the service life of the filter tank is prolonged, and meanwhile, the explosion accident of a slag flushing point is avoided.
Drawings
FIG. 1 is a process flow diagram of a bottom filtration slag treatment system of the present invention;
FIG. 2 is a flow chart of the filter level monitoring system of FIG. 1;
FIG. 3 is a flow diagram of the slag flushing water pressure control system of FIG. 1;
fig. 4 is a flow chart of the pipeline flow control system of fig. 1.
In the figure: 1-a filtration tank liquid level monitoring system; 11-a slag receiving filter tank; 12-a slag catching filter tank; 111-camera I; 112-pressure transmitter I; 113-an electric valve I; 114-electric valve I; 121-camera I; 122-pressure transmitter I; 123-electric valve III; 124-an electric valve IV; 2-slag flushing water pressure control system; 21-a granulation tower; 22-a shunt tube control valve; 23-pressure transmitter III; 24-water main; 25-slag flushing water supply pipe; 26-a shunt tube; 3-a pipeline flow control system; 31-a water extraction flow control block; 32-hot water main; 33-flow transmitter I; 34-a cold water tank; 35-a liquid level meter; 36-slag flushing flow control block; 37-slag flushing water header pipe; 38-flow transmitter I; 311-hot water pump I; 312-hot water pump I; 313-pressure gauge I; 314-pressure gauge I; 315-electrically operated valve V; 316-electrically operated valve VI; 317-adjusting a valve I; 318-adjusting valve I; 361-slag flushing pump I; 362-slag flushing pump I; 363-manometer III; 364-pressure gauge IV; 365-an electric valve VII; 366-electrically operated valve VIII; 367-regulating valve III; 368-regulating valve IV.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
Example 1
The bottom filtration slag treatment system of the embodiment, as shown in fig. 1, includes filtering ponds liquid level monitoring system 1, towards sediment water pressure control system 2 and pipeline flow control system 3, pipeline flow control system 3's exit end is through towards the entrance point UNICOM of sediment water main 37 with towards sediment water pressure control system 2, towards sediment water pressure control system 2 and pass through granulation tower 21 and discharge the sediment water into inside filtering ponds liquid level monitoring system 1, filtering ponds liquid level monitoring system 1's exit end is through the pipe and pipeline flow control system 3's entrance point UNICOM to realize the control to the filtering ponds liquid level, towards sediment hydraulic control and the control of water balance, thereby prolonged the life of water pump and filtering ponds, the water economy resource makes bottom filtration slag treatment process more environmental protection.
As shown in fig. 2, the filtration tank liquid level monitoring system 1 includes a slag receiving filtration tank 11 and a slag catching filtration tank 12, the slag receiving filtration tank 11 is externally connected with a pressure transmitter i 112 through a main filtration pipe, and the pressure transmitter i 112 transmits a received signal to a main control room computer screen, so as to convert the pressure into a water level in the slag receiving filtration tank 11, thereby preventing a water pump air intake situation from occurring due to poor water level control in the slag receiving filtration tank 11; as shown in fig. 1, the slag receiving filter tank 11 is communicated with the water pumping flow control block 31 through a pipeline, and is controlled to open and close through an electric valve i 113 and an electric valve i 114 which are sequentially arranged on the pipeline; as shown in fig. 4, the water pumping flow control block 31 includes a hot water pump i 311 and a pressure gauge i 313 that are sequentially connected to the outlet end of the slag-receiving filter tank 11, and is controlled to open and close by an electric valve V315 and an adjusting valve i 317 that are sequentially arranged on a pipeline.
As shown in fig. 4, the pumping flow control block 31 is connected to a cold water reservoir 34 via a hot water manifold 32; a flow transmitter I33 is arranged on the hot water main pipe 32 to display the flow on a computer in a main control room; the outlet end of the cold water tank 34 is externally connected with a slag flushing flow control block 36 through a pipeline. The slag flushing flow control block 36 comprises a slag flushing pump I361 and a pressure gauge III363 which are started during slag receiving, and the hot water pump III361 and the pressure gauge III363 are controlled to open and close through an electric valve VII365 and an adjusting valve III367 which are sequentially arranged on pipelines of the hot water pump III361 and the pressure gauge III 363; when the slag receiving filter tank 11 is used, the water consumption for flushing slag is determined according to the slag quantity, and after the water quantity for flushing slag is determined, the water pumping flow of the hot water pump I311 is balanced with the water consumption for flushing slag of the flushing slag pump I361. When the two flows are not balanced, the flow of the hot water pump I311 can be adjusted by controlling the opening degree of the adjusting valve I317, so that the generation of foam slag and cotton residue is avoided, the service life of the filter tank is prolonged, and meanwhile, the explosion accident of a slag flushing point is avoided.
In this embodiment, the slag receiving filter tank 11 and the slag grabbing filter tank 12 are respectively provided with a camera i 111 and a camera i 121, and the camera i 111 and the camera i 121 can feed back the received signals to a computer screen of a main control room, so as to monitor the water level conditions of the slag receiving filter tank 11 and the slag grabbing filter tank 12 in real time.
Example 2
The basic structure of the slag treatment system of the bottom filtration method of the embodiment is the same as that of the embodiment 1, and the differences and improvements are that: as shown in fig. 2, the slag catching filter tank 12 is externally connected with a pressure transmitter i 122 through a main filter pipe, and the pressure transmitter i 122 transmits a received signal to a computer screen of a main control room, so as to convert the pressure into the water level in the slag catching filter tank 12, thereby avoiding the situation of slag catching with water due to poor water level control in the slag catching filter tank 11. As shown in fig. 1, the slag catching filter tank 12 is communicated with the water pumping flow control block 31 through a pipeline, and is controlled to open and close through an electric valve III123 and an electric valve IV124 which are sequentially arranged on the pipeline; as shown in fig. 4, the water pumping flow rate control block 31 further includes a hot water pump i 312 and a pressure gauge i 314 that are sequentially connected to the outlet end of the slag grabbing filtering tank 12, and are controlled to open and close by an electric valve VI316 and an adjusting valve ii 318 that are sequentially arranged on a pipeline.
As shown in fig. 4, the slag flushing flow control block 36 further includes a slag flushing pump i 362 and a pressure gauge IV364 which are activated during slag grabbing, and the slag flushing pump i 362 and the pressure gauge IV364 are controlled to open and close by an electric valve VIII366 and an adjusting valve IV368 which are sequentially arranged on pipelines of the slag flushing pump i 362 and the pressure gauge IV 364. When the slag grabbing filter tank 12 is used, the water consumption for flushing slag is determined according to the slag quantity, and after the water consumption for flushing slag is determined, the water pumping flow of the hot water pump I312 should be balanced with the water consumption for flushing slag of the slag pump I362. When the two flows are not balanced, the flow of the hot water pump i 312 can be adjusted by controlling the opening degree of the adjusting valve i 318, so that the water level in the slag catching filter tank 12 is prevented from being reduced because the flow of the hot water pump i 312 is greater than the flow of the slag flushing pump i 362, and further the hot water pump i 312 is caused to intake air or the hot water pump is repeatedly started and stopped; and because the flow rate of the hot water pump I312 is less than that of the slag flushing pump I362, the water level in the slag catching filter tank 12 rises and overflows, which causes waste of water resources and environmental pollution. The hot water pump is prevented from being started and stopped frequently due to unbalanced water quantity, the service life of the hot water pump is prolonged, and powerful guarantee is provided for one-key slag flushing.
Example 3
The basic structure of the slag treatment system of the bottom filtration method of the embodiment is the same as that of the embodiment 2, and the differences and improvements are as follows: as shown in fig. 4, a cold water tank water-replenishing pipe is externally connected above the cold water tank 34, and a water-replenishing valve is arranged on the cold water tank; the cold water tank 34 is provided with a liquid level meter 35 through the upper part thereof, and the liquid level meter 35 is combined with a signal fed back to a computer in a main control room to control the opening and closing of a water replenishing valve so as to realize the water replenishing of the cold water tank 34; therefore, the problems that water is brought to the slag catching process due to overhigh water levels in the slag receiving filter tank 11 and the slag catching filter tank 12, more slag-water mixture is sprayed on the road surface in the automobile transportation process, water resources are wasted, and the environment is polluted are avoided; and because the water levels in the slag receiving filter tank 11 and the slag grabbing filter tank 12 are too low, air can be introduced when the hot water pump I311 and the hot water pump I312 do not pump water, the service lives of the hot water pump I311 and the hot water pump I312 are seriously influenced, and the workload of workers is increased.
Example 4
The basic structure of the slag treatment system of the bottom filtration method of the embodiment is the same as that of the embodiment 3, and the differences and improvements are that: as shown in fig. 1 and 3, the slag flushing flow control block 36 is communicated with the slag flushing water pressure control system 2 through a slag flushing water main pipe 37, and a flow transmitter i 38 is arranged on the slag flushing water main pipe 37 to display the flow on a computer in a main control room; the slag flushing water pressure control system 2 comprises a slag flushing water supply pipe 25, one end of the slag flushing water supply pipe 25 is connected with a water supply main pipe 24, a pressure transmitter III23 is arranged between the slag flushing water supply pipe 25 and the water supply main pipe 24, and the water supply main pipe 24 is communicated with a slag flushing water main pipe 37; the other end of the slag flushing water supply pipe 25 is introduced into the granulation tower 21 through a shunt pipe 26, the opening and closing of the slag flushing water supply pipe are controlled through a shunt pipe control valve 22 arranged on the shunt pipe 26, and the opening degree of the shunt pipe control valve 22 can be controlled through a computer in a main control room. When slag is flushed normally, the slag flushing flow is required to be controlled to be 0.16-0.18 MPa, and when the pressure displayed by the pressure transmitter III23 is higher than a set value, the opening of the shunt pipe control valve 22 can be increased to increase the flow of the shunt pipe 26, so that the aim of reducing the slag flushing pressure is fulfilled; when the pressure shown by the pressure transmitter III23 is lower than the set value, the opening degree of the shunt pipe control valve 22 can be reduced to reduce the flow of the shunt pipe 26, thereby achieving the purpose of increasing the slag flushing pressure.
In this embodiment, the shunt 26 is a seamless steel tube DN100 mm; the pressure transmitter III23 is positioned on the slag flushing water supply pipe 25, the measuring range is 0-0.5 MPa, and the measuring range can be displayed on a computer in a master control room.
Example 5
The basic structure of the control method of the bottom filter method slag processing system of the embodiment is the same as that of the embodiment 4, and the differences and improvements are that: as shown in fig. 1, the slag receiving filter tank 11 and the slag grabbing filter tank 12 are arranged at the same time, and when the slag receiving filter tank 11 receives slag, a travelling crane is used for slag grabbing treatment in the filter tank 12, which specifically comprises the following steps:
step one, receiving slag: after the slag control operation area receives the slag flushing notice, the slag flushing pump I361 is firstly opened, water in the cold water tank 34 is sent to the granulation tower 21, and then enters the slag receiving filter tank 11 through the slag flushing ditch;
step two, slag flushing: when the liquid level converted by a pressure transmitter I112 arranged on a main filter pipe below the slag receiving filter tank 11 reaches more than 1.5m, a hot water pump I311 is started to pump the water in the slag receiving filter tank 11 back to the cold water tank 34; after the slag flushing is finished, the slag flushing pump 361 is closed, and when the liquid level converted by the pressure transmitter I112 reaches below 1.5m, the hot water pump I311 is closed;
step three, slag grabbing: slag grabbing is carried out in the filtering tank 12 by using a travelling crane; after the slag grabbing is finished, the slag receiving filter tank 11 and the slag grabbing filter tank 12 can be interchanged and the steps can be repeated.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (10)
1. The utility model provides a sediment processing system of end filter method which characterized in that: including filtering ponds liquid level monitoring system (1), towards sediment water pressure control system (2) and pipeline flow control system (3), the exit end of pipeline flow control system (3) is through towards the entrance point looks UNICOM of sediment water house steward (37) and towards sediment water pressure control system (2), towards sediment water pressure control system (2) and pass through granulation tower (21) and discharge into inside filtering ponds liquid level monitoring system (1), the exit end of filtering ponds liquid level monitoring system (1) is through the entrance point looks UNICOM of pipe with pipeline flow control system (3).
2. The bottom filtration slag treatment system according to claim 1, wherein: the filtering tank liquid level monitoring system (1) is including connecing sediment filtering ponds (11) and grabbing sediment filtering ponds (12), connect sediment filtering ponds (11) and grab and be provided with camera I (111) and camera II (121) in sediment filtering ponds (12) respectively, camera I (111) and camera II (121) can feed back received signal to the master control room computer screen on.
3. The bottom filtration slag treatment system according to claim 2, wherein: the slag receiving filter tank (11) is externally connected with a pressure transmitter I (112) through a main filter pipe, and the pressure transmitter I (112) transmits received signals to a computer screen of a main control room.
4. The bottom filtration slag treatment system according to claim 3, wherein: the slag receiving filter tank (11) is communicated with the water pumping flow control block (31) through a pipeline, and is controlled to be opened and closed through an electric valve I (113) and an electric valve II (114) which are sequentially arranged on the pipeline; the water pumping flow control block (31) comprises a hot water pump I (311) and a pressure gauge I (313) which are sequentially externally connected with the outlet end of the slag receiving filter tank (11), and the opening and the closing are controlled by an electric valve V (315) and an adjusting valve I (317) which are sequentially arranged on a pipeline.
5. The bottom filtration slag treatment system according to claim 2, wherein: the slag grabbing filter tank (12) is externally connected with a pressure transmitter II (122) through a main filter pipe, and the pressure transmitter II (122) transmits received signals to a computer screen of a main control room.
6. The bottom filtration slag treatment system according to claim 5, wherein: the slag grabbing filter tank (12) is communicated with the water pumping flow control block (31) through a pipeline, and is controlled to be opened and closed through an electric valve III (123) and an electric valve IV (124) which are sequentially arranged on the pipeline; the water pumping flow control block (31) further comprises a hot water pump II (312) and a pressure gauge II (314) which are sequentially externally connected to the outlet end of the slag grabbing filter tank (12), and the opening and closing of the hot water pump II and the pressure gauge II are controlled by an electric valve VI (316) and an adjusting valve II (318) which are sequentially arranged on a pipeline.
7. The bottom filtration slag treatment system according to claim 4 or 6, wherein: the water pumping flow control block (31) is communicated with a cold water pool (34) through a hot water main pipe (32); a flow transmitter I (33) is arranged on the hot water main pipe (32); the outlet end of the cold water tank (34) is externally connected with a slag flushing flow control block (36) through a pipeline; the slag flushing flow control block (36) comprises a slag flushing pump I (361) and a pressure gauge III (363) which are started during slag receiving, and the slag flushing pump I (361) and the pressure gauge III (363) are controlled to open and close through an electric valve VII (365) and an adjusting valve III (367) which are sequentially arranged on pipelines of the slag flushing pump I (361) and the pressure gauge III (363); the slag flushing flow control block (36) further comprises a slag flushing pump II (362) and a pressure gauge IV (364) which are started during slag grabbing, and the opening and closing of the slag flushing pump II (362) and the pressure gauge IV (364) are controlled by an electric valve VIII (366) and an adjusting valve IV (368) which are sequentially arranged on pipelines of the slag flushing pump II (362) and the pressure gauge IV (364).
8. The bottom filtration slag treatment system according to claim 7, wherein: a cold water pool water replenishing pipe is externally connected above the cold water pool (34), and a water replenishing valve is arranged on the cold water pool; the cold water pool (34) feeds back signals to a main control room computer through a liquid level meter (35) arranged above the cold water pool to control the opening and closing of the water replenishing valve.
9. The bottom filtration slag treatment system according to claim 8, wherein: the slag flushing flow control block (36) is communicated with the slag flushing water pressure control system (2) through a slag flushing water header pipe (37), and a flow transmitter II (38) is arranged on the slag flushing water header pipe (37); the slag flushing water pressure control system (2) comprises a slag flushing water supply pipe (25), one end of the slag flushing water supply pipe (25) is connected with a water supply main pipe (24), a pressure transmitter III (23) is arranged between the slag flushing water supply pipe (25) and the water supply main pipe (24), and the water supply main pipe (24) is communicated with a slag flushing water main pipe (37); the other end of the slag flushing water supply pipe (25) is led into the granulation tower (21) through a shunt pipe (26), and the opening and the closing are controlled through a shunt pipe control valve (22) arranged on the shunt pipe (26).
10. The control method of the bottom-filtering slag treatment system is characterized by comprising a slag receiving filter tank (11) and a slag grabbing filter tank (12), wherein the slag grabbing treatment is carried out in the filter tank (12) by using a travelling crane while the slag receiving filter tank (11) receives slag, and the control method specifically comprises the following steps:
step one, receiving slag: after receiving the slag flushing notice in the central slag control processing operation area, firstly opening a slag flushing pump I (361), sending water in the cold water tank (34) to the granulation tower (21), and then entering the slag receiving filter tank (11) through a slag flushing ditch;
step two, slag flushing: when the liquid level converted by a pressure transmitter I (112) arranged on a filtering main pipe below the slag receiving filtering tank (11) reaches more than 1.5m, a hot water pump I (311) is started to pump the water in the slag receiving filtering tank (11) back to the cold water tank (34); after the slag flushing is finished, the slag flushing pump (361) is closed, and the hot water pump I (311) is closed when the liquid level converted by the pressure transmitter I (112) reaches below 1.5 m;
step three, slag grabbing: slag grabbing is carried out in the filtering tank (12) by using a travelling crane; after the slag grabbing is finished, the slag receiving filter tank (11) and the slag grabbing filter tank (12) can be interchanged and the steps can be repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111030381.4A CN113718068B (en) | 2021-09-03 | 2021-09-03 | Bottom filtration slag treatment system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111030381.4A CN113718068B (en) | 2021-09-03 | 2021-09-03 | Bottom filtration slag treatment system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113718068A true CN113718068A (en) | 2021-11-30 |
| CN113718068B CN113718068B (en) | 2022-11-15 |
Family
ID=78681291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111030381.4A Active CN113718068B (en) | 2021-09-03 | 2021-09-03 | Bottom filtration slag treatment system and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113718068B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10216415A1 (en) * | 2002-04-12 | 2003-10-23 | Ajo Tec Gmbh | Process for separating water and solids during granulation of blast furnace slag comprises spraying water into a forging stream, feeding the granulate/water mixture produced to collecting vessel of dewatering device and further treatment |
| CN108220511A (en) * | 2018-01-17 | 2018-06-29 | 安徽马钢工程技术集团有限公司 | Filter method Slag treatment method in a kind of In The Sub-mergedfurnace of The Ferroalloys bottom |
| CN109022647A (en) * | 2018-08-08 | 2018-12-18 | 北京钢元工程技术有限公司 | A kind of bottom filter method Water ramjet+ and process |
| CN109487020A (en) * | 2018-12-16 | 2019-03-19 | 邯郸钢铁集团有限责任公司 | A kind of INBA Handling Blast Furnace Granulated Slag device and flushing cinder method |
| CN111443742A (en) * | 2020-04-21 | 2020-07-24 | 江苏维辰益科技有限公司 | Liquid level control device for bottom filter of slag treatment system of iron works |
-
2021
- 2021-09-03 CN CN202111030381.4A patent/CN113718068B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10216415A1 (en) * | 2002-04-12 | 2003-10-23 | Ajo Tec Gmbh | Process for separating water and solids during granulation of blast furnace slag comprises spraying water into a forging stream, feeding the granulate/water mixture produced to collecting vessel of dewatering device and further treatment |
| CN108220511A (en) * | 2018-01-17 | 2018-06-29 | 安徽马钢工程技术集团有限公司 | Filter method Slag treatment method in a kind of In The Sub-mergedfurnace of The Ferroalloys bottom |
| CN109022647A (en) * | 2018-08-08 | 2018-12-18 | 北京钢元工程技术有限公司 | A kind of bottom filter method Water ramjet+ and process |
| CN109487020A (en) * | 2018-12-16 | 2019-03-19 | 邯郸钢铁集团有限责任公司 | A kind of INBA Handling Blast Furnace Granulated Slag device and flushing cinder method |
| CN111443742A (en) * | 2020-04-21 | 2020-07-24 | 江苏维辰益科技有限公司 | Liquid level control device for bottom filter of slag treatment system of iron works |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113718068B (en) | 2022-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102268994B (en) | Water supply system of composite earth pressure balance shield machine | |
| CN110242312A (en) | A kind of Anti-blocking structure, a kind of shield machine blowdown anti-block apparatus and its application | |
| CN113718068B (en) | Bottom filtration slag treatment system and control method thereof | |
| CN111305314A (en) | Sewage direct recycling system for power plant circulating water and control method thereof | |
| CN206072776U (en) | Grow up municipal water supply pipe pipeline exploding early warning device in Underwater Traffic Tunnel | |
| CN109487020B (en) | INBA blast furnace water slag treatment device and slag flushing method | |
| CN108671596A (en) | A kind of monomer water treatment facilities | |
| CN215857965U (en) | Cooling water supply device for deep well pump vertical motor sliding bearing | |
| CN114278371A (en) | Automatic dredging device for coal mine sump and use method | |
| CN211685016U (en) | Foundation pit underground water utilization system | |
| CN105268574B (en) | One kind spraying main frame and its method of work | |
| CN209210600U (en) | A kind of salt-mud treatment device | |
| WO2020155883A1 (en) | Multiple unit train toilet greywater reuse device | |
| CN102151666A (en) | Automatic flushing system of safety valve of fluid transportation pipe | |
| CN214461081U (en) | Integrated intelligent pump station silt-preventing device | |
| CN207161086U (en) | A kind of abrasion reducing system of rectangular pipe jacking machine | |
| CN214115592U (en) | Blast furnace gas water mixed quenching slag device | |
| CN220017757U (en) | Geothermal tail water recharging system with gas lift reverse circulation mechanism | |
| CN110344840A (en) | Outer water circulation system and outer water round-robin method of the TBM with automatic control | |
| CN211521687U (en) | Oil field steam injection boiler water treatment resin hydraulic reclamation device | |
| CN100393974C (en) | Method for recovering surplus concrete by pump tube cross-support and concrete stop-valve | |
| CN218092961U (en) | Device for rapidly discharging and cleaning slag in medium-length hole | |
| CN215594287U (en) | Circulating water blowdown reinjection device of thermal power plant | |
| CN216861766U (en) | Marine intelligent window washing system | |
| CN208852957U (en) | A kind of sand milling control system of preventing leakage because of tube bursting slurry |
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 |