CN113082847B - Online circulating dialysis device and method for coal gas bag hydraulic oil in steelmaking production - Google Patents
Online circulating dialysis device and method for coal gas bag hydraulic oil in steelmaking production Download PDFInfo
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- 238000000502 dialysis Methods 0.000 title claims abstract description 43
- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000009628 steelmaking Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000003034 coal gas Substances 0.000 title claims abstract description 8
- 239000003921 oil Substances 0.000 claims abstract description 112
- 238000010793 Steam injection (oil industry) Methods 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 239000010724 circulating oil Substances 0.000 claims abstract description 4
- 238000011001 backwashing Methods 0.000 claims description 35
- 239000002893 slag Substances 0.000 claims description 22
- 239000012528 membrane Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000011085 pressure filtration Methods 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 12
- 239000012459 cleaning agent Substances 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 125000004122 cyclic group Chemical group 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 231100000331 toxic Toxicity 0.000 abstract description 2
- 230000002588 toxic effect Effects 0.000 abstract description 2
- 238000011069 regeneration method Methods 0.000 abstract 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000000703 high-speed centrifugation Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 230000008929 regeneration Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000010705 motor oil Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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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
- B01D36/045—Combination of filters with centrifugal separation devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/262—Separation of sediment aided by centrifugal force or centripetal force by using a centrifuge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides an online circulating dialysis device and method for coal gas bag hydraulic oil in steelmaking production, and the online circulating dialysis device comprises an oil inlet control device, an online oil dialysis device and a staggered-layer filter cylinder device, wherein the oil inlet control device is connected with the online oil dialysis device through a steam heating pipeline, a steam injection port is arranged on the steam heating pipeline, the online oil dialysis device is connected with the staggered-layer filter cylinder device through a discharge pipeline, the traditional mode of disassembling and washing the hydraulic device under a line is abandoned, the online circulating oil dialysis device is adopted in real time, and the online cleaning of the hydraulic oil and the cyclic regeneration of waste oil are realized in a high-speed centrifugation and dialysis mode; the method can achieve the effects of short time, high efficiency, reduction and energy conservation, saves manpower and material resources, does not have the application of toxic or corrosive cleaning agents of the traditional hydraulic device, and provides powerful technical support for the cyclic regeneration method of the hydraulic oil product with high safety in fire prevention.
Description
Technical Field
The invention relates to the technical field of engine oil treatment and resource utilization, in particular to an online circulating dialysis device and method for coal gas bag hydraulic oil in steelmaking production.
Background
A deposit that has fluid in the passageway for making steel production coal gas package hydraulic means, takes place the fluid very easily, and these deposits can make hydraulic means produce some unnecessary troubles, so need in time clear up, dismantle hydraulic means then wash, just so can be timely make hydraulic means's function obtain recovering. The cleaning is carried out with special attention, many precipitates are not easy to clean, and some cleaning liquids are needed, which are generally corrosive or toxic, and even flammable, so that care must be taken. After the cleaning is finished, the parts are kept well and are not corroded, and after the cleaning is finished, the mounted hydraulic device can be continuously operated after being tested.
If some parts of the hydraulic device are damaged and are relatively serious, the recombination and matching are generally selected in the case. If the hydraulic device is maintained by special experienced personnel, the service life of the hydraulic device can be greatly prolonged, the reliability and the working performance of the hydraulic device can be maintained at the original level, even if the hydraulic device is maintained by special experienced personnel, the vigilance is improved in daily production, accidents are prevented, especially the hydraulic device matched with a gas bag or a gas stove in steelmaking production is difficult to clean, time and labor are wasted, and a cleaning agent is inflammable and is one of technical bottlenecks.
Disclosure of Invention
The invention aims to provide an online circulating dialysis device and method for gas bag hydraulic oil in steelmaking production, which aim to solve the problems in the background technology, solve the problems that waste engine oil cannot be recycled and is difficult to clean through the process of online processing of impurities and oil product sediments, greatly reduce the production cost of enterprises, and reduce the time and labor consumption of personnel replacement and delay of production.
In order to achieve the purpose, the invention provides the following technical scheme: the online circulating dialysis device for the coal gas bag hydraulic oil in steelmaking production comprises an oil inlet control device, an online oil dialysis device and a staggered layer filter cartridge device, wherein the oil inlet control device is connected with the online oil dialysis device through a steam heating pipeline, a steam filling opening is formed in the steam heating pipeline, the online oil dialysis device is connected with the staggered layer filter cartridge device through a discharging pipeline, the oil inlet control device comprises an oil inlet, a control oil way and a plurality of hydraulic devices, the oil inlet is connected with the hydraulic devices through an oil inlet pipeline, the control oil way controls the hydraulic devices to move, the hydraulic devices comprise pistons and adjusting springs, the control oil way controls the pistons to move through oil pressure, the adjusting springs push and control regenerated oil through the pistons, and the online oil dialysis device comprises a shell, a centrifugal mechanism and a cylinder device, The centrifugal mechanism is arranged inside the shell, the first steam injection port is arranged at the lower end of the shell, the deslagging ports are arranged on two sides of the shell, the staggered-layer filter cylinder device comprises a filter cylinder, a backwashing device, a discharge port and a second steam injection port, the second steam injection port is arranged on one side of the upper end of the filter cylinder, the backwashing device is arranged in the filter cylinder, and the discharge port is arranged on the other side of the filter cylinder.
Preferably, the centrifugal mechanism comprises a centrifugal shaft, a plurality of dispersing pipelines are uniformly distributed on the centrifugal shaft, grooves are formed in the dispersing pipelines, the centrifugal shaft penetrates through the shell to be connected with the feeding port, and the feeding port is connected with the steam heating pipeline.
Preferably, the shell and the outer wall are provided with heat insulation layers, steam is introduced through the first steam injection port, the temperature of oil in the shell is maintained to be more than or equal to 40 ℃, and the kinematic viscosity of the oil is 50 CST-75 CST.
Preferably, the length of the dispersion pipeline is more than or equal to 60cm, the diameter of the pipeline is 10-15 cm, the grooves are arranged in an inclined angle, and the design angle is 110-140 degrees.
Preferably, the number of the dispersing pipelines uniformly distributed on the centrifugal shaft is 5-8, the number of the dispersing pipelines arranged on each layer is more than or equal to 4, the dispersing pipelines are symmetrically distributed in an even number, and the number of the dispersing pipelines arranged can be increased according to the capacity of oil to be regenerated.
Preferably, the backwashing device comprises a filter element, a backwashing feed inlet and a backwashing discharge outlet, the backwashing feed inlet is connected with the filter cylinder, the backwashing discharge outlet is connected with a centrifugal shaft of the centrifugal mechanism, the filter element is a pressure-resistant high-strength ceramic membrane, the diameter of a membrane tube channel of the ceramic membrane is 7-15 mm, the number of the channels is 7-12, the membrane aperture is 1.5-2 um, the pressure-resistant strength is 1-2 Mpa, and the application temperature is 50-100 ℃.
Preferably, the pressure of the filter element is controlled to be 1.5-2 Mpa, and the temperature in the filter cartridge is controlled to be 80-100 ℃ by injecting steam into the second steam injection port.
Preferably, the staggered filter cylinder device is made of porous stainless steel.
A method for online circulating dialysis of gas bag hydraulic oil in steelmaking production comprises the following steps:
s1, feeding oil to be regenerated into one or more hydraulic devices through an oil inlet of an oil inlet control device, feeding the oil to be regenerated into a steam heating pipeline through the hydraulic devices, injecting steam into the steam heating pipeline through a steam injection port, heating the oil in the steam heating pipeline to 40-60 ℃, and feeding the oil to be regenerated into the centrifugal shaft of the online circulating oil dialysis device through a feed port;
s2: the centrifugal mechanism rotates and controls the rotating speed to be 25000 r/min-30000 r/min, oil liquid to be regenerated in the centrifugal shaft is quickly and centrifugally dispersed to each layer of dispersing pipelines, steam is injected through a first steam injection port in the dispersing process, the temperature in the shell is kept to be more than 40 ℃, slag is discharged through a groove with an angle designed to be 110-140 degrees, organic impurity and oil precipitate are centrifuged to a slag discharge port to be accumulated, the slag discharge port is automatically controlled to be opened at fixed time to discharge slag, the slag discharge duration is 3-5 s, the oil slag is transported outside through entrusted treatment, and supernatant oil liquid is obtained through centrifugation;
s3: feeding the dispersed supernatant oil into a staggered-layer filter cylinder device through a discharge pipeline, injecting steam through a second steam injection port, keeping the temperature in the filter cylinder at 80-100 ℃, controlling the pressure at 1.5-2 Mpa, and discharging the circulating regenerated oil through a discharge port after pressure filtration;
s4: and (2) carrying out backwashing operation according to the filtering condition of the staggered filter cylinder device, leading the circulating regenerated oil into the staggered filter cylinder device through the backwashing feed inlet, carrying out secondary filtering, simultaneously conveying the filtered circulating regenerated oil into the online circulating online oil dialysis device through the backwashing discharge outlet, and carrying out the operations of the step S2 and the step S3 again, wherein the backwashing frequency is 10 d-15 d, and if annual overhaul and cleaning are carried out, the cleaning is carried out by adopting a mixed oil stain cleaning agent.
Compared with the prior art, the invention has the beneficial technical effects that:
1. in the actual use process of hydraulic equipment, oil stain precipitation can be caused due to hydraulic oil pollution, or some granular impurities exist in hydraulic oil, which can cause the hydraulic valve to break down, and under the normal condition, the hydraulic valve can be cleared down by disassembling and cleaning, so that the function of the hydraulic valve can be recovered.
2. In consideration of the fact that enterprises with high fire-fighting requirements cannot fire or have flammable cleaning agents, and too frequent cleaning also causes a large amount of waste of manpower and material resources and causes accidents of shutdown and accident detection and maintenance, all the cost for cleaning a traditional hydraulic oil device once is accumulated to be about 5 thousands, and the economic cost is high.
3. The structure of the hydraulic oil online circulating dialysis device and the control of the process parameters not only solve the problem that hydraulic equipment is difficult to clean, but also realize the cyclic utilization of waste engine oil and effectively avoid the waste of resources.
Drawings
FIG. 1 is a schematic structural diagram of an on-line hydraulic oil circulation dialysis apparatus according to the present invention.
Fig. 2 is a schematic structural diagram of the hydraulic device of the present invention.
FIG. 3 is a schematic diagram of the centrifugal structure of the present invention.
Reference numerals: 1. the device comprises an oil inlet control device, 2 an online oil dialysis device, 3 a staggered filter cylinder device, 4 a steam heating pipeline, 5 a steam injection port, 6 a discharge pipeline, 7 an oil inlet, 8 a control oil circuit, 9 a hydraulic device, 10 an oil inlet pipeline, 11 a piston, 12 an adjusting spring, 13 a shell, 14 a centrifugal mechanism, 15 a first steam injection port, 16 a slag discharge port, 17 a filter cylinder, 18 a backwashing device, 19 a discharge port, 20 a second steam injection port, 21 a centrifugal shaft, 22 a dispersion pipeline, 23 a feed port, 24 a filter element, 25 a backwashing feed port, 26 a backwashing discharge port, 27 and a groove.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Example 1
As shown in fig. 1, 2 and 3, an online circulating dialysis device for coal gas bag hydraulic oil in steel-making production comprises an oil inlet control device 1, an online oil dialysis device 2 and a staggered layer filter cartridge device 3, wherein the oil inlet control device 1 is connected with the online oil dialysis device 2 through a steam heating pipeline 4, a steam filling port 5 is arranged on the steam heating pipeline 4, the online oil dialysis device 2 is connected with the staggered layer filter cartridge device 3 through a discharge pipeline 6, the oil inlet control device 1 comprises an oil inlet 7, a control oil way 8 and a plurality of hydraulic devices 9, the oil inlet 7 is connected with the hydraulic devices 9 through an oil inlet pipeline 10, the control oil way 8 controls the hydraulic devices 9 to move, the hydraulic devices 9 comprise pistons 11 and adjusting springs 12, the control oil way 8 controls the pistons 11 to move through oil pressure, the adjusting spring 12 controls the regenerated oil through the pushing of the piston 11, the online oil dialysis device 2 comprises a shell 13, a centrifugal mechanism 14, a first steam injection port 15 and a slag discharge port 16, the centrifugal mechanism 14 is arranged inside the shell 13, the first steam injection port 15 is arranged at the lower end of the shell 13, the slag discharge port 16 is arranged at two sides of the shell 13, the staggered filter cartridge device 3 comprises a filter cartridge 17, a backwashing device 18, a discharge port 19 and a second steam injection port 20, the second steam injection port 20 is arranged at one side of the upper end of the filter cartridge 17, the backwashing device 18 is arranged in the filter cartridge 17, and the discharge port 19 is arranged at the other side of the filter cartridge 17.
The centrifugal mechanism 14 comprises a centrifugal shaft 21, a plurality of dispersing pipelines 22 are uniformly distributed on the centrifugal shaft 21, grooves 27 are formed in the dispersing pipelines 22, the centrifugal shaft 21 penetrates through the shell 13 to be connected with a feed port 23, and the feed port 23 is connected with the steam heating pipeline 4.
The shell 13 and the outer wall are provided with heat insulation layers, steam is introduced through the first steam injection port 15, the temperature of oil liquid in the shell 13 is maintained to be more than or equal to 40 ℃, and the kinematic viscosity of the oil liquid is 50 CST-75 CST.
The length of the dispersion pipeline 22 is more than or equal to 60cm, the diameter of the pipeline is 10 cm-15 cm, the groove 27 is arranged in an inclined angle, and the design angle is 110-140 degrees.
The number of the dispersing pipelines uniformly distributed on the centrifugal shaft is 5-8, the number of the dispersing pipelines arranged on each layer is more than or equal to 4, the dispersing pipelines are symmetrically distributed in an even number, and the number of the dispersing pipelines arranged can be increased according to the capacity of oil to be regenerated.
The backwashing device 18 comprises a filter element 24, a backwashing feed inlet 25 and a backwashing discharge outlet 26, the backwashing feed inlet 25 is connected with the filter cylinder 17, the backwashing discharge outlet 26 is connected with a centrifugal shaft 21 of the centrifugal mechanism 14, the filter element 24 is a pressure-resistant high-strength ceramic membrane, the diameter of a membrane tube channel of the ceramic membrane is 7-15 mm, the number of the channels is 7-12, the membrane aperture is 1.5-2 um, the pressure-resistant strength is 1-2 Mpa, and the application temperature is 50-100 ℃.
The pressure of the filter element 24 is controlled to be 1.5 Mpa-2 Mpa, and the temperature in the filter cartridge 17 is controlled to be 80 ℃ to 100 ℃ by injecting steam into the second steam injection port 20.
The staggered-layer filter cylinder device 3 is made of porous stainless steel.
Example 2
The embodiment is a method for performing online circulating dialysis on hydraulic oil in a gas tank in steelmaking production by using the device provided by embodiment 1, and the method comprises the following steps of:
s1, feeding oil to be regenerated into one or more hydraulic devices 9 through an oil inlet 7 of an oil inlet control device 1, then feeding the oil to be regenerated into a steam heating pipeline 4 through the hydraulic devices 9, injecting steam into the steam heating pipeline 4 through a steam injection port 5, heating the oil in the steam heating pipeline 4 to 40-60 ℃, and feeding the oil to be regenerated into the centrifugal shaft 21 of the online circulating oil dialysis device 2 through a feed port 23;
s2: the centrifugal mechanism 14 rotates and controls the rotating speed to be 25000 r/min-30000 r/min, oil liquid to be regenerated in the centrifugal shaft is quickly and centrifugally dispersed into each layer of dispersing pipelines 22, steam is injected through the first steam injection port 15 in the dispersing process, the temperature in the shell 13 is kept above 40 ℃, slag is discharged through the groove 27 with the angle designed to be 110-140 degrees, mechanical impurities and oil sediments are centrifuged to the slag discharge port 16 to be accumulated, the slag discharge port 16 is opened at fixed time through automatic control to discharge slag, the slag discharge duration is 3-5 s, and the oil slag is transported outside through entrusted treatment;
s3: the dispersed supernatant oil enters the staggered-layer filter cylinder device 3 through a discharge pipeline 6, steam is injected through a second steam injection port 20, the temperature in the filter cylinder 17 is kept at 80-100 ℃, the pressure is kept at 1.5-2 Mpa, and the circulating regenerated oil is discharged through a discharge port 19 after pressure filtration;
s4: and (3) carrying out backwashing operation according to the filtering condition of the staggered-layer filter cylinder device 3, draining the circulating regenerated oil into the staggered-layer filter cylinder device 3 through the backwashing feed inlet 25, carrying out secondary filtering, conveying the filtered circulating regenerated oil into the online circulating online oil liquid dialysis device 2 through the backwashing discharge outlet 26, and carrying out the operation of the step S2 and the step S3 again, wherein the backwashing frequency is 10 d-15 d, and if annual overhaul and cleaning are carried out, cleaning is carried out by adopting a mixed oil stain-added cleaning agent.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions are considered to be within the protective scope of the present invention.
Claims (6)
1. The online circulating dialysis device for the coal gas bag hydraulic oil in steelmaking production comprises an oil inlet control device, an online oil dialysis device and a staggered-layer filter cartridge device and is characterized in that the oil inlet control device is connected with the online oil dialysis device through a steam heating pipeline, a steam filling opening is formed in the steam heating pipeline, the online oil dialysis device is connected with the staggered-layer filter cartridge device through a discharging pipeline, the oil inlet control device comprises an oil inlet, a control oil way and a plurality of hydraulic devices, the oil inlet is connected with the hydraulic devices through an oil inlet pipeline, the control oil way controls the hydraulic devices to move, the hydraulic devices comprise pistons and adjusting springs, the control oil way controls the pistons to move through oil pressure, the adjusting springs push and control regenerated oil through the pistons, and the online oil dialysis device comprises a shell, a shell and a staggered-layer filter cartridge device, The centrifugal mechanism is arranged in the shell, the first steam injection port is arranged at the lower end of the shell, the slag discharge ports are arranged on two sides of the shell, the staggered-layer filter cylinder device comprises a filter cylinder, a backwashing device, a discharge port and a second steam injection port, the second steam injection port is arranged on one side of the upper end of the filter cylinder, the backwashing device is arranged in the filter cylinder, and the discharge port is arranged on the other side of the filter cylinder;
the centrifugal mechanism comprises a centrifugal shaft, a plurality of dispersing pipelines are uniformly distributed on the centrifugal shaft, grooves are formed in the dispersing pipelines, the centrifugal shaft penetrates through the shell to be connected with a feeding hole, and the feeding hole is connected with the steam heating pipeline;
the number of the dispersing pipelines uniformly distributed on the centrifugal shaft is 5-8, the arrangement number of the dispersing pipelines on each layer is more than or equal to 4, the dispersing pipelines are symmetrically distributed in an even number, and the arrangement number of the dispersing pipelines can be increased according to the capacity of oil to be regenerated;
the backwashing device comprises a filter element, a backwashing feed inlet and a backwashing discharge port, the backwashing feed inlet is connected with the filter cylinder, the backwashing discharge port is connected with a centrifugal shaft of the centrifugal mechanism, the filter element is a pressure-resistant high-strength ceramic membrane, the diameter of a membrane tube channel of the ceramic membrane is 7-15 mm, the number of the channels is 7-12, the membrane aperture is 1.5-2 um, the pressure-resistant strength is 1-2 Mpa, and the application temperature is 50-100 ℃.
2. The on-line circulating dialysis device for the hydraulic oil in the gas bag in the steelmaking production as claimed in claim 1, wherein the housing and the outer wall are provided with heat insulation layers, steam is introduced through the first steam injection port, the temperature of the oil in the housing is maintained to be not less than 40 ℃, and the kinematic viscosity of the oil is 50CST to 75 CST.
3. The on-line circulating dialysis device for the hydraulic oil in the gas bag in the steelmaking production as recited in claim 1, wherein the length of the dispersion pipeline is not less than 60cm, the diameter of the pipeline is 10cm to 15cm, the groove is arranged at an inclined angle, and the design angle is 110 ° to 140 °.
4. The on-line hydraulic oil circulation dialysis device for the gas bag in the steel-making production as claimed in claim 1, wherein the pressure of the filter element is controlled to be 1.5 Mpa-2 Mpa, and the temperature in the filter cartridge is controlled to be 80 ℃ to 100 ℃ by injecting steam into the second steam injection port.
5. The on-line hydraulic oil circulation dialysis device for the gas bag in the steelmaking production as claimed in claim 1, wherein the staggered filter cylinder device is made of porous stainless steel.
6. A method for online circulating dialysis of hydraulic oil in a gas bag in steelmaking production is characterized in that the online circulating dialysis device of the hydraulic oil in the gas bag in steelmaking production according to any one of claims 1 to 5 comprises the following steps:
s1, feeding oil to be regenerated into one or more hydraulic devices through an oil inlet of an oil inlet control device, feeding the oil to be regenerated into a steam heating pipeline through the hydraulic devices, injecting steam into the steam heating pipeline through a steam injection port, heating the oil in the steam heating pipeline to 40-60 ℃, and feeding the oil to be regenerated into the centrifugal shaft of the online circulating oil dialysis device through a feed port;
s2: the centrifugal mechanism rotates and controls the rotating speed to be 25000 r/min-30000 r/min, oil liquid to be regenerated in the centrifugal shaft is quickly and centrifugally dispersed to each layer of dispersing pipelines, steam is injected through a first steam injection port in the dispersing process, the temperature in the shell is kept to be more than 40 ℃, slag is discharged through a groove with an angle designed to be 110-140 degrees, mechanical impurity and oil sediment is centrifuged to a slag discharge port to be accumulated, the slag discharge port is opened automatically and regularly to discharge slag, the slag discharge duration is 3-5 s, and the oil slag is transported outside through entrusted treatment;
s3: feeding the dispersed supernatant oil into a staggered-layer filter cylinder device through a discharge pipeline, injecting steam through a second steam injection port, keeping the temperature in the filter cylinder at 80-100 ℃, controlling the pressure at 1.5-2 Mpa, and discharging the circulating regenerated oil through a discharge port after pressure filtration;
s4: and (3) carrying out backwashing operation according to the filtering condition of the staggered filter cylinder device, guiding the circulating regenerated oil into the staggered filter cylinder device through the backwashing feed inlet, carrying out secondary filtering, conveying the filtered circulating regenerated oil into the online circulating online oil liquid dialysis device through the backwashing discharge outlet, and carrying out the operations of the step S2 and the step S3 again.
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| CN202110353635.XA CN113082847B (en) | 2021-04-01 | 2021-04-01 | Online circulating dialysis device and method for coal gas bag hydraulic oil in steelmaking production |
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| CN113082847B true CN113082847B (en) | 2022-05-27 |
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| CN202569792U (en) * | 2012-02-23 | 2012-12-05 | 自贡川滤设备制造有限公司 | Multifunctional integrated waste oil online vacuum centrifugal purification energy-saving device |
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