CN117018731A - Oil residue separation device and method for coal tar recovery - Google Patents
Oil residue separation device and method for coal tar recovery Download PDFInfo
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- CN117018731A CN117018731A CN202311289978.XA CN202311289978A CN117018731A CN 117018731 A CN117018731 A CN 117018731A CN 202311289978 A CN202311289978 A CN 202311289978A CN 117018731 A CN117018731 A CN 117018731A
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- filter
- coal tar
- filter vat
- heat source
- oil
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- 239000011280 coal tar Substances 0.000 title claims abstract description 113
- 238000000926 separation method Methods 0.000 title claims abstract description 28
- 238000011084 recovery Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title description 3
- 239000012071 phase Substances 0.000 claims abstract description 55
- 238000001914 filtration Methods 0.000 claims abstract description 48
- 239000007921 spray Substances 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 239000007790 solid phase Substances 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 31
- 238000002955 isolation Methods 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 11
- 238000005086 pumping Methods 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 239000007791 liquid phase Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 67
- 238000010586 diagram Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000011269 tar Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The application discloses an oil residue separation device and a separation method for coal tar recovery, and particularly relates to the technical field of coal tar filtration, wherein the oil residue separation device for coal tar recovery comprises a filter, an inlet pipe is arranged at the top of the filter, an oil phase discharge pipe is arranged at the bottom of the filter, and a filter barrel is arranged in the filter; the outside of filter vat is provided with multiunit heat flow formula heating element, and the heat source frame is connected with the heat flow source, and the heat flow source is arranged in providing the heat flow to the heat source frame to spout to the outer wall of filter vat by the shower nozzle. According to the application, the filter vat is driven to rotate, and the heat flow sprayed by the spray head uniformly preheats and heats the whole circumferential side wall of the filter vat, so that the smoothness of the coal tar liquid phase passing through the filter vat during filtration is ensured, and meanwhile, the filtering speed of the coal tar oil phase can be accelerated by the rotating filter vat, so that the blocking of a filtering channel of the filter vat can be effectively avoided, and the separation efficiency of the coal tar oil phase and the solid phase is greatly improved.
Description
Technical Field
The application relates to the technical field of coal tar filtration, in particular to an oil residue separation device and an oil residue separation method for coal tar recovery.
Background
The coal tar slag is formed by mixing high boiling point organic compounds generated under high temperature condition with coal powder and the like during coal coking or gas liquefaction. The coal tar slag is in a black mud sand shape and is easy to bond into blocks, and the main components of the coal tar slag are organic substances such as benzene, phenols, polycyclic aromatic hydrocarbon, tar and the like, and coal dust, coke powder and the like, and also contain a small amount of heavy metals.
When the coal tar is discharged from the coke oven through a primary separation device such as a sediment tank or a cyclone, the coal tar is mixed with a part of sediment, so that when the coal tar is recovered, solid-phase oil residues in the coal tar and the coal tar are also required to be filtered, the coal tar is separated from solid impurities with larger particles by utilizing a filtering structure, valuable tar and coal dust are recovered from the coal tar, and the coal tar and the coal dust are further processed and reused.
In general, in order to increase the filtering area and the oil residue storage space, a long-cylinder type filtering structure is adopted in the filter, so that the filtering speed is increased, a large amount of oil residues can be stored in the long-cylinder type filtering structure, the long-cylinder type filtering structure is driven while filtering, and the filtering out of coal tar is accelerated by means of gravity and centrifugal force.
Since the kerosene has a great viscosity in a low temperature state, it is necessary to heat the kerosene to a temperature ranging from 60 to 100 ℃ and then to perform a filtration process in order to prevent the sticking and clogging of equipment pipes. When the coal tar with more solid-phase oil residue content is filtered, along with the continuous progress of filtration, the solid-phase oil residue filtered inside the long-cylinder type filtering structure is gradually accumulated, and the actual contact filtering position of the coal tar and the long-cylinder type filtering structure is gradually increased, but the upper area of the long-cylinder type filtering structure is not fully contacted with the coal tar in the initial period, and the upper area cannot be heated by the coal tar and is still in a low-temperature state.
Therefore, when the coal tar contacts a new unheated long-cylinder type filtering structure, the temperature of the coal tar which firstly passes through the filtering structure can be absorbed by the filtering structure, so that the temperature of the coal tar is reduced, the viscosity is increased, and the coal tar can be attached to the long-cylinder type filtering structure, so that the filtering effect is affected.
Disclosure of Invention
The application provides an oil residue separation device and a separation method for coal tar recovery, which aims to solve the problems that: the coal tar after heating in the existing filter device leads to the technical problem that the temperature of the coal tar is reduced, the viscosity is increased and the filtering effect is affected when the coal tar contacts with a filtering structure with lower temperature.
In order to achieve the above purpose, the present application provides the following technical solutions: the oil-residue separation device for coal tar recovery comprises a filter, wherein an inlet pipe is arranged at the top of the filter, an oil phase discharge pipe is arranged at the bottom of the filter, and a filter barrel is arranged in the filter;
the outer side of the filter barrel is provided with a plurality of groups of heat flow type heating components, the plurality of groups of heat flow type heating components are arranged around the circumferential outer wall of the filter barrel, the heat flow type heating components comprise a heat source frame, the heat source frame is fixedly arranged in the inner wall of the filter, the heat source frame is positioned in an area between the inner wall of the filter and the outer wall of the filter barrel, one side of the heat source frame, which is close to the outer wall of the filter barrel, is provided with a plurality of groups of spray heads, and the spray heads are arranged along the height direction of the filter barrel;
the heat source frame is connected with a heat source, the heat source is used for providing heat flow for the heat source frame and is sprayed out from the spray head to the outer wall of the filter barrel, the heat flow is fluid with standard temperature, and the standard temperature is the temperature range of coal tar which is heated when the coal tar enters the filter;
the filter is provided with a driving unit which is used for driving the filter barrel and the heat source frame to generate relative movement, and the relative movement is circumferential sliding of the heat source frame relative to the circumferential outer wall of the filter barrel.
In a preferred embodiment, the top of the inner cavity of the filter is fixedly provided with a bearing seat, the top end of the filter barrel is fixedly connected with a clamping seat, and the clamping seat is rotatably arranged on the top of the bearing seat.
In a preferred embodiment, the driving unit comprises a driving shaft and a motor for driving the driving shaft, the driving shaft is rotatably arranged in the side wall of the filter, a bevel gear is fixedly arranged at one end of the driving shaft, which is close to the filter vat, a bevel gear ring is fixedly connected to the bottom of the filter vat, and the bevel gear is meshed with the bevel gear ring.
In a preferred embodiment, the heat flow source comprises a heater and a liquid pump, the heater and the liquid pump are fixedly arranged on the filter, the heat source frame is of a hollow structure, the spray head is communicated with the inner cavity of the heat source frame, the heat source frame is fixedly connected with a liquid conveying pipe, the liquid conveying pipe is connected to the output end of the heater, the input end of the heater is connected with the output end of the liquid pump, the input end of the liquid pump is connected with a liquid extracting pipe, and the liquid extracting pipe is connected with a fluid container required by heat flow.
In a preferred embodiment, the bottom of the filter is provided with a back-suction pipe, the back-suction pipe is positioned in the area below the liquid level of the coal tar oil phase which has been filtered in the filter, and the back-suction pipe is communicated with the liquid suction pipe.
In a preferred embodiment, a plurality of shielding plates are arranged in the inner wall of the filter vat, each shielding plate corresponds to a group of spray heads, the length direction of each shielding plate is the same as the distribution direction of each group of spray heads, the shielding plates are in sliding fit with the inner wall of the filter vat, the shielding plates are mutually fixed with the heat source frame, the top parts of the shielding plates of each group are fixedly connected with a fixing frame, a buckle frame is fixedly arranged on the fixing frame, the top wall of the bearing seat is provided with a slot, and the buckle frame is mutually spliced with the slot.
In a preferred embodiment, the side of the shielding plate, which is close to the inner wall of the filter vat, is provided with an isolation cavity, the width value of which is larger than the width value of the range of the jet head for jetting the heat flow.
In a preferred embodiment, the shielding plate is fixedly provided with an exhaust pipe, the exhaust pipe is communicated to the isolation cavity, one end of the exhaust pipe away from the shielding plate is connected with an exhaust device, and the exhaust device is used for exhausting air from the isolation cavity through the exhaust pipe.
In a preferred embodiment, the heat source frame is further provided with an air knife board, the air knife board is located on one side, far away from the rotation direction of the filter vat, of the spray head, the filter is provided with an air pump, the length direction of the air knife board is the same as the setting direction of the spray head, the output end of the air pump is communicated with the air knife board through an air pipe, the input end of the air pump is provided with an air suction pipe, and the air suction pipe is communicated with the air suction pipe.
The oil-residue separation method for recovering the coal tar comprises the following steps:
step one, starting a driving unit to drive a filter barrel to rotate, starting a heat source to provide heat flow with the temperature of 90-100 ℃ to a heat source frame, spraying the heat flow onto the filter barrel through a spray head, and preheating the filter barrel;
heating the coal tar in the conveying pipeline to 80-100 ℃ through heating equipment, conveying the coal tar into a filter barrel through an inlet pipe, and filtering the coal tar by the filter barrel;
step three, when the filtered coal tar oil phase is converged to a specified depth at the bottom of the inner cavity of the filter, a control valve on an oil phase discharge pipe is opened to output the coal tar oil phase, the filtered coal tar oil phase is collected through the oil phase discharge pipe, and the output flow rate of the oil phase discharge pipe is controlled to be the same as the input flow rate of an inlet pipe, so that the coal tar oil phase with a fixed depth is always kept in the filter;
and fourthly, stopping conveying the coal tar oil after the filtration is finished, completely discharging the filtered coal tar oil phase through an oil phase discharge pipe, opening a top cover at the top of the filter, taking out the filter barrel, and recovering solid-phase oil residues in the filter barrel.
The application has the beneficial effects that:
according to the application, the filter vat is driven to rotate, and the heat flow sprayed by the spray head uniformly preheats and heats the whole circumferential side wall of the filter vat, so that the smoothness of the coal tar liquid phase passing through the filter vat during filtration is ensured, and meanwhile, the filtering speed of the coal tar oil phase can be accelerated by the rotating filter vat, so that the blocking of a filtering channel of the filter vat can be effectively avoided, and the separation efficiency of the coal tar oil phase and the solid phase is greatly improved.
The heat flow sprayed by the spray head of the application can reversely pass through the filtering channel to flow into the filtering barrel, so that small oil residue particles blocked in the filtering channel can be reversely flushed back into the filtering barrel by the heat flow, thereby avoiding the blocking of the filtering channel.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present application.
Fig. 2 is a schematic view of the internal structure of the filter according to the present application.
FIG. 3 is a schematic diagram of a thermal flow heating assembly according to the present application.
Fig. 4 is a state diagram of the coal tar oil phase part being thrown out when the filter vat of the present application rotates.
Fig. 5 is a top view of the internal structure of the filter of the present application.
Fig. 6 is a view showing a state of the shielding plate and the inner wall of the filter vat in cooperation with each other.
Fig. 7 is a state diagram of the present application of injecting heat flow into the filter sidewall based on the view of fig. 3.
Fig. 8 is a state diagram of the present application for injecting heat flow into the filter sidewall based on the view of fig. 5.
Fig. 9 is an enlarged view of the portion a of fig. 3 according to the present application.
Fig. 10 is an enlarged view of the B-section structure of fig. 3 according to the present application.
Fig. 11 is a schematic view of the overall structure of the fixing frame of the present application.
Fig. 12 is a top view of the support bracket of the present application.
FIG. 13 is a schematic diagram of the separation method of the present application.
The reference numerals are: 1. a filter; 11. an inlet tube; 12. an oil phase discharge pipe; 13. a back suction pipe; 14. a support bracket; 141. a ball groove; 142. a slot; 2. a filter vat; 21. a clamping seat; 3. a thermal flow heating assembly; 31. a heat source rack; 311. an infusion tube; 312. a communicating ring pipe; 32. a spray head; 33. a heater; 34. a liquid pump; 341. a liquid suction pipe; 4. a driving unit; 41. a drive shaft; 5. a shielding plate; 51. a fixing frame; 511. a buckle frame; 52. an exhaust pipe; 53. an isolation chamber; 6. an air knife board; 61. a gas pipe; 62. an air pump; 63. an air suction pipe.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings, wherein it is to be understood that the following detailed description is for the purpose of further illustrating the application only and is not to be construed as limiting the scope of the application, as various insubstantial modifications and adaptations of the application to those skilled in the art can be made in light of the foregoing disclosure.
Referring to fig. 1-12 of the specification, an oil residue separating device for coal tar recovery comprises a filter 1, wherein an inlet pipe 11 is arranged at the top of the filter 1, an oil phase discharge pipe 12 is arranged at the bottom of the filter 1, a filter barrel 2 is arranged in the filter 1, the top of the filter barrel 2 is an opening, the side wall and the bottom wall of the filter barrel 2 are of a filter structure with filter channels, in the embodiment, the filter channels are filter holes, coal tar is conveyed into the filter barrel 2 through the inlet pipe 11 after being heated, oil phase in the coal tar is filtered by the filter barrel 2 and falls to the bottom of the filter 1, then is discharged and collected by the oil phase discharge pipe 12, solid-phase oil residue in the coal tar is filtered in the filter barrel 2, and the filter barrel 2 is taken out after the filtration is finished and the oil residue is recovered;
the outer side of the filter vat 2 is provided with a plurality of groups of heat flow type heating components 3, the plurality of groups of heat flow type heating components 3 are arranged around the outer wall of the circumferential side of the filter vat 2, the heat flow type heating components 3 comprise a heat source frame 31, the heat source frame 31 is fixedly arranged in the inner wall of the filter 1, the heat source frame 31 is positioned in the area between the inner wall of the filter 1 and the outer wall of the filter vat 2, one side of the heat source frame 31, which is close to the outer wall of the filter vat 2, is provided with a plurality of groups of spray heads 32, and the plurality of groups of spray heads 32 are arranged along the height direction of the filter vat 2;
the heat source frame 31 is connected with a heat source, the heat source is used for providing heat flow to the heat source frame 31, and the heat flow is sprayed out to the outer wall of the filter vat 2 by the spray head 32, the heat flow is fluid with standard temperature, the fluid does not affect the filtration of coal tar, for example, the fluid can be coal tar with higher purity or an extraction solvent used for the extraction treatment of the coal tar, and can also be other liquid which is not compatible with the coal tar oil phase and is easy to separate from the coal tar oil phase, the standard temperature is a temperature range of the coking coal oil when the optimal fluidity is maintained, namely, the temperature range of the coal tar is heated when entering the filter 1;
the filter 1 is provided with a driving unit 4, and the driving unit 4 is used for driving the filter vat 2 and the heat source frame 31 to generate relative movement, wherein the relative movement is circumferential sliding of the heat source frame 31 relative to the circumferential outer wall of the filter vat 2.
Further, the top fixed mounting of filter 1 inner chamber has a socket 14, the top fixedly connected with cassette 21 of filter vat 2, cassette 21 rotates the top of installing at socket 14, the roof of socket 14 is provided with ball groove 141, be provided with the ball between ball groove 141 and the cassette 21, drive unit 4 includes drive shaft 41 and is used for carrying out driven motor to drive shaft 41, drive shaft 41 rotates and installs in the lateral wall of filter 1, drive shaft 41 is close to the one end fixed mounting of filter vat 2 has the bevel gear, the bottom fixedly connected with awl tooth ring of filter vat 2, bevel gear and awl tooth ring intermeshing.
It should be noted that, in order to facilitate taking and placing of the filter vat 2, the top of the filter 1 may be provided with a top cover capable of performing opening and closing control, by means of the cooperation of the bevel gear on the driving shaft 41 and the filter vat 2, the bevel gear ring at the bottom of the filter vat 2 is in contact engagement with the bevel gear when the filter vat 2 is placed in the filter 1, and the filter vat 2 can be conveniently taken out by means of the detachable support of the support seat 14 to the clamping seat 21, so that when the filter vat 2 needs to be taken out, the top cover of the filter 1 is opened, the filter vat 2 can be directly taken out, and the driving of the driving unit 4 does not influence the taking out of the filter vat 2.
In the above embodiment, the relative movement driving between the heat source frame 31 and the filter vat 2 is controlled by driving the filter vat 2 to rotate, so that the heat flow sprayed by the spray head 32 can uniformly contact all the side walls of the filter vat 2, and further, the whole circumferential side walls of the filter vat 2 side can be uniformly preheated and heated, when the coal tar enters the filter vat 2 through the inlet pipe 11, the temperature of the coal tar is not reduced, so that the optimal temperature of the coal tar in the filter vat 2 can be kept all the time, the smoothness of the coal tar liquid phase passing through the filter vat 2 during filtration is ensured, the blocking of the filter channel of the filter vat 2 can be effectively avoided, and the separation efficiency of the coal tar oil phase and the solid phase is greatly improved; and when the filter vat 2 is driven to rotate so as to realize uniform heating, the filter vat 2 which rotates also drives coal tar inside the filter vat to rotate, so that the coal tar generates an outward centrifugal force, the filtering-out speed of the coal tar oil phase can be accelerated, and the separation efficiency and the separation effect are further improved.
Further, the heat flow source comprises a heater 33 and a liquid pump 34, the heater 33 and the liquid pump 34 are fixedly arranged on the filter 1, the heat source frame 31 is of a hollow structure, the spray head 32 is communicated with the internal cavity of the heat source frame 31, the heat source frames 31 are mutually communicated through a communication ring pipe 312, the heat source frame 31 is fixedly connected with a transfusion pipe 311, the transfusion pipe 311 is connected to the output end of the heater 33, the input end of the heater 33 is connected to the output end of the liquid pump 34, the input end of the liquid pump 34 is connected with a liquid extracting pipe 341, the liquid extracting pipe 341 is connected with a fluid container required by heat flow, the fluid is further conveyed into the heater 33 through the liquid pump 34, the fluid is heated to a required temperature through the heater 33, then is conveyed into the heat source frame 31, and the spray head 32 ejects the heat flow to the outer wall of the filter vat 2 under the pressure of the liquid pump 34.
In order to reduce heat dissipation, the filtered coal tar oil phase is preferentially used as the fluid required by the heat flow, specifically, the bottom of the filter 1 is provided with a back-pumping pipe 13, the back-pumping pipe 13 is located in a region below the liquid level of the filtered coal tar oil phase in the filter 1, and the back-pumping pipe 13 is mutually communicated with the liquid pumping pipe 341, so that the filtered coal tar oil phase can be recycled during actual filtration, and the filtered coal tar oil phase has a certain temperature, so that the temperature difference required to be heated during the recycling is lower, and the energy consumption is lower.
In the above embodiment, a manner of rotationally driving the filter vat 2 is adopted, so that a coal tar oil phase thrown out in multiple directions is formed on the circumferential side wall of the filter vat 2, refer to fig. 4 of the specification, in order to avoid the influence of the thrown out coal tar oil on the spray heads 32, the embodiment further provides a scheme, specifically, refer to fig. 3-10 of the specification, a plurality of shielding plates 5 are disposed in the inner wall of the filter vat 2, each shielding plate 5 is disposed corresponding to one group of spray heads 32, the length direction of each shielding plate 5 is the same as the distribution direction of each group of spray heads 32, the shielding plates 5 are in sliding fit with the inner wall of the filter vat 2, the shielding plates 5 and the heat source frame 31 are mutually fixed, specifically, the top of each group of shielding plates 5 is fixedly connected with a fixing frame 51, a fastening frame 511 is fixedly mounted on the fixing frame 51, a slot 142 is disposed on the top wall of the bearing bracket 14, and the fastening frame 511 is mutually inserted with the slot 142.
Because the heat source frame 31 is fixedly installed in the filter 1, when the filter vat 2 rotates, the relative positions of the shielding plate 5 and the spray head 32 are always fixed, when the filter vat 2 rotates, part of the filtering passage between the shielding plate 5 and the heat source frame 31 is blocked by the shielding plate 5, no coal tar oil phase is thrown out from the position of the heat source frame 31, so that the spray head 32 is not influenced, and meanwhile, the shielding plate 5 can be used as a scraping plate to scrape solid-phase oil residues attached to the inner wall of the filter vat 2 by means of the relative rotation of the filter vat 2 and the shielding plate 5, so that the solid-phase oil residues are prevented from being attached to the filtering passage to influence the filtering. By means of the insertion of the fastening frame 511 into the slot 142, the shielding plate 5 can be detachably mounted, so that the subsequent removal of the filter vat 2 is not affected.
Further, because the oil phase in the coal tar is thrown out by centrifugal force due to the rotation of the filter vat 2, the oil phase can drive part of smaller oil residue particles to enter the filter channel to be blocked, but because part of the heat flow sprayed by the spray head 32 reversely passes through the filter channel to flow towards the inside of the filter vat 2, the smaller oil residue particles blocked in the filter channel can be reversely flushed back into the filter vat 2 by the heat flow, the filter channel is prevented from being blocked, and in order to enable the arrangement of the shielding plate 5 not to influence the backflushing of the heat flow on solid-phase oil residue, the embodiment also provides the following technical scheme.
It should be noted that when the heat flow is towards the filter vat 2, the heat flow passing through the filter channel can enter the isolation cavity 53 and then flow out from the bottom and two side areas of the isolation cavity 53, meanwhile, the small oil residue particles blocked in the filter channel are flushed out into the isolation cavity 53 and then gathered downwards, and are located in the isolation cavity 53, the oil phase which is thrown out is lacking in the isolation cavity 53, and the shielding plate 5 and the filter vat 2 slide relatively, so that the oil residue particles which are backflushed into the isolation cavity 53 can not influence the filter channel of the filter vat 2 any more.
Further, the shielding plate 5 is fixedly provided with an exhaust pipe 52, the exhaust pipe 52 is communicated to the isolation cavity 53, one end, far away from the shielding plate 5, of the exhaust pipe 52 is connected with an exhaust device, and the exhaust device is used for exhausting air from the isolation cavity 53 through the exhaust pipe 52, so that negative pressure is formed in the isolation cavity 53, and heat flow is facilitated to pass through a filtering channel of the filter vat 2.
Further, the air knife plate 6 is further installed on the heat source frame 31, the air knife plate 6 is located at one side of the spray head 32 far away from the rotation direction of the filter barrel 2, the air pump 62 is installed on the filter 1, the length direction of the air knife plate 6 is the same as the setting direction of the spray head 32, the output end of the air pump 62 is communicated with the air knife plate 6 through the air pipe 61, the air suction pipe 63 is arranged at the input end of the air pump 62, and the air suction pipe 63 is connected with the air storage cavity.
Further, in order to reduce the influence of the selected gas on the coal tar, the air suction pipe 63 is directly communicated with the air suction pipe 52, so that the air pump 62 is used as a power source, and air is supplied to the air knife plate 6 while air is sucked from the isolation cavity 53, so that the air knife plate 6 blows air flow to the surface of the filter vat 2, blows away the coal tar oil phase attached to the surface of the filter vat 2, enables the heat flow sprayed out by the spray head 32 to directly contact the spray head 32 to heat the filter vat 2, prevents more coal tar attached to the surface of the filter vat 2 from blocking the sprayed heat flow, and improves the heating efficiency of the filter vat 2.
Referring to fig. 13 of the specification, a method for separating oil residue for recovering coal tar comprises the following steps:
step one, starting a driving unit 4 to drive a filter vat 2 to rotate, starting a heat source to provide heat flow with the temperature of 90-100 ℃ to a heat source frame 31, and then spraying the heat flow onto the filter vat 2 through a spray head 32 to preheat the filter vat 2;
heating the coal tar in the conveying pipeline to 80-100 ℃ through heating equipment, conveying the coal tar into the filter vat 2 through the inlet pipe 11, and filtering the coal tar by the filter vat 2;
step three, when the filtered coal tar oil phase is converged to a specified depth at the bottom of the inner cavity of the filter 1, a control valve on an oil phase discharge pipe 12 is opened to output the coal tar oil phase, the filtered coal tar oil phase is collected through the oil phase discharge pipe 12, and the output flow rate of the oil phase discharge pipe 12 is controlled to be the same as the input flow rate of an inlet pipe 11, so that the coal tar oil phase with a fixed depth is always kept in the filter 1;
and fourthly, stopping conveying the coal tar oil after the filtration is finished by the inlet pipe 11, discharging all the filtered coal tar oil phase by the oil phase discharge pipe 12, opening a top cover at the top of the filter 1, taking out the filter barrel 2, and recovering solid-phase oil residues in the filter barrel 2.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.
Claims (10)
1. The utility model provides a coal tar recovery is with oil residue separator which characterized in that: the filter comprises a filter (1), wherein an inlet pipe (11) is arranged at the top of the filter (1), an oil phase discharge pipe (12) is arranged at the bottom of the filter (1), and a filter barrel (2) is arranged in the filter (1);
the outside of filter vat (2) is provided with multiunit heat flow formula heating element (3), multiunit heat flow formula heating element (3) encircle the circumference side outer wall setting of filter vat (2), heat flow formula heating element (3) include heat source frame (31), heat source frame (31) fixed mounting is in the inner wall of filter (1), heat source frame (31) are located the region between the inner wall of filter (1) and the outer wall of filter vat (2), one side that heat source frame (31) is close to the outer wall of filter vat (2) is provided with multiunit shower nozzle (32), and multiunit shower nozzle (32) are along the direction of height of filter vat (2);
the heat source frame (31) is connected with a heat source, the heat source is used for providing heat flow for the heat source frame (31) and spraying the heat flow to the outer wall of the filter vat (2) through the spray head (32), the heat flow is fluid with standard temperature, and the standard temperature is the temperature range of coal tar which is heated when the coal tar enters the filter (1);
the filter (1) is provided with a driving unit (4), and the driving unit (4) is used for driving the filter vat (2) and the heat source frame (31) to generate relative movement, wherein the relative movement is circumferential sliding of the heat source frame (31) relative to the circumferential outer wall of the filter vat (2).
2. The oil-residue separation device for coal tar recovery according to claim 1, wherein: the top of filter (1) inner chamber fixed mounting has support bracket (14), the top fixedly connected with cassette (21) of filter vat (2), cassette (21) rotate the top of installing at support bracket (14).
3. The oil-residue separation device for coal tar recovery according to claim 2, wherein: the driving unit (4) comprises a driving shaft (41) and a motor for driving the driving shaft (41), the driving shaft (41) is rotatably arranged in the side wall of the filter (1), a bevel gear is fixedly arranged at one end, close to the filter vat (2), of the driving shaft (41), a bevel gear ring is fixedly connected to the bottom of the filter vat (2), and the bevel gear ring are meshed with each other.
4. The oil-residue separation device for coal tar recovery according to claim 3, wherein: the heat flow source comprises a heater (33) and a liquid pump (34), the heater (33) and the liquid pump (34) are fixedly arranged on the filter (1), the heat source frame (31) is of a hollow structure, the spray head (32) is communicated with an inner cavity of the heat source frame (31), the heat source frame (31) is fixedly connected with a transfusion tube (311), the transfusion tube (311) is connected to an output end of the heater (33), an input end of the heater (33) is connected to an output end of the liquid pump (34), an input end of the liquid pump (34) is connected with a liquid suction tube (341), and the liquid suction tube (341) is connected with a fluid container required by heat flow.
5. The oil-residue separation device for coal tar recovery according to claim 4, wherein: the bottom of the filter (1) is provided with a back-pumping pipe (13), the back-pumping pipe (13) is positioned in the area below the liquid level of the coal tar oil phase which is filtered in the filter (1), and the back-pumping pipe (13) is communicated with a liquid pumping pipe (341).
6. The oil-residue separation device for coal tar recovery according to claim 5, wherein: be provided with a plurality of shielding plates (5) in the inner wall of filter vat (2), every shielding plate (5) all corresponds a set of shower nozzle (32) setting, and the length direction of each shielding plate (5) is the same with the distribution direction of each group shower nozzle (32), the inner wall slip laminating of shielding plate (5) and filter vat (2), fix each other between shielding plate (5) and heat source frame (31), the top fixedly connected with mount (51) of each group shielding plate (5), fixed mounting has buckle frame (511) on mount (51), slot (142) have been seted up to the roof of bearing seat (14), buckle frame (511) are pegged graft each other with slot (142).
7. The oil and slag separation device for coal tar recovery according to claim 6, wherein: an isolation cavity (53) is arranged on one side, close to the inner wall of the filter vat (2), of the shielding plate (5), and the width value of the isolation cavity (53) is larger than that of the range of the heat flow ejected by the spray head (32).
8. The oil and slag separation device for coal tar recovery according to claim 7, wherein: still fixed mounting has exhaust tube (52) on shielding plate (5), exhaust tube (52) are linked together in keeping apart chamber (53), the one end that shielding plate (5) was kept away from to exhaust tube (52) is connected with air extraction equipment, and this air extraction equipment is followed in keeping apart chamber (53) through exhaust tube (52).
9. The oil and slag separation device for coal tar recovery according to claim 8, wherein: the air knife device is characterized in that an air knife plate (6) is further arranged on the heat source frame (31), the air knife plate (6) is located on one side, far away from the rotation direction of the filter barrel (2), of the spray head (32), an air pump (62) is arranged on the filter (1), the length direction of the air knife plate (6) is the same as the arrangement direction of the spray head (32), the output end of the air pump (62) is communicated with the air knife plate (6) through an air pipe (61), an air suction pipe (63) is arranged at the input end of the air pump (62), and the air suction pipe (63) is directly communicated with the air suction pipe (52).
10. The separation method of the oil-residue separation means for recovering coal tar according to claim 1, comprising the steps of:
step one, starting a driving unit (4) to drive a filter vat (2) to rotate, starting a heat source to provide heat flow at 90-100 ℃ to a heat source frame (31), and then spraying the heat flow onto the filter vat (2) through a spray head (32) to preheat the filter vat (2);
heating the coal tar in the conveying pipeline to 80-100 ℃ through heating equipment, conveying the coal tar into the filter vat (2) through the inlet pipe (11), and filtering the coal tar by the filter vat (2);
step three, when the filtered coal tar oil phase is converged to a specified depth at the bottom of an inner cavity of the filter (1), a control valve on an oil phase discharge pipe (12) is opened to output the coal tar oil phase, the filtered coal tar oil phase is collected through the oil phase discharge pipe (12), and the output flow rate of the oil phase discharge pipe (12) is controlled to be the same as the input flow rate of an inlet pipe (11), so that the coal tar oil phase with a fixed depth is always kept in the filter (1);
and fourthly, stopping conveying the coal tar oil after the filtration is finished, discharging all the filtered coal tar oil phase through an oil phase discharge pipe (12), opening a top cover at the top of the filter (1), taking out the filter barrel (2), and recovering solid-phase oil residues in the filter barrel (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311289978.XA CN117018731B (en) | 2023-10-08 | 2023-10-08 | Oil residue separation device and method for coal tar recovery |
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| CN202311289978.XA CN117018731B (en) | 2023-10-08 | 2023-10-08 | Oil residue separation device and method for coal tar recovery |
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