CN113502168A - Tar residue processing system - Google Patents
Tar residue processing system Download PDFInfo
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- CN113502168A CN113502168A CN202011581330.6A CN202011581330A CN113502168A CN 113502168 A CN113502168 A CN 113502168A CN 202011581330 A CN202011581330 A CN 202011581330A CN 113502168 A CN113502168 A CN 113502168A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
- C10K1/046—Reducing the tar content
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Abstract
The invention discloses a tar residue treatment system, which comprises the following steps of firstly, providing a high-temperature alkaline liquid environment for tar residues by using a high-temperature alkaline liquid environment unit, and stirring by using a stirring device, namely realizing primary separation of the tar residues; and then, conveying the primarily separated tar residues into a pressure filter for secondary separation by using a residue extraction device, and conveying the separated tar residues into a first carbonization device for high-temperature dry distillation to realize tertiary separation and produce crude gas and coke powder. According to the invention, the tar residues can be efficiently and thoroughly recovered through three steps of separation treatment on the tar residues, and products such as coal tar, coke powder and the like generated in each separation process can be sold or used by oneself, so that various problems caused by improper treatment of the tar residues are avoided, and extra economic benefits are brought to enterprises; meanwhile, most of the equipment in the invention is common equipment for coal enterprises, and high-cost and high-pollution equipment and materials are not used, so that the cost is low, the environment is protected, and the large-scale and continuous production is very easy to realize.
Description
The technical field is as follows:
the invention relates to the technical field of coal chemical industry, in particular to a tar residue treatment system.
Background art:
in the traditional coking route, organic compounds with high boiling point can be condensed to form coal tar under the condition of ammonia water spray cooling of a gas collecting pipe or a primary cooler, and meanwhile, coal dust, semi-coke and the like carried in the coal gas are mixed in the coal tar to form tar residues. The tar slag is viscous waste slag, the main components of the tar slag comprise carbon-containing substances such as coal dust, coke powder, coal tar, asphaltene and polycyclic aromatic hydrocarbon, and the tar slag belongs to toxic and harmful solid waste slag, if the tar slag is not properly treated, not only is environmental pollution easily caused, but also resource waste is caused, and some polycyclic aromatic hydrocarbon substances with high boiling point can generate strong carcinogen benzopyrene when the tar slag is not completely combusted, so that the atmosphere is seriously polluted, and the health of people is harmed; but if the treatment is proper, the method also brings benefits.
The existing treatment methods of tar residues can be divided into two types: the first is to separate oil and slag in tar slag by physical method, recover valuable tar and further process and utilize, and common methods include solvent extraction separation, mechanical centrifugal separation and the like. The second type is the development and utilization of tar residue as fuel and coal blending additive or resource, and common methods are used for coal blending coking, fuel and activated carbon preparation. However, various treatment methods still have many disadvantages, for example, it is difficult to find efficient, green and environment-friendly organic solvents in solvent extraction and separation, and the higher cost of the extractant further increases the production cost; the mechanical centrifugal separation effect is not thorough enough, so that the subsequent treatment is inconvenient, the purchase cost and the operation and maintenance cost of centrifugal equipment are high, and the centrifugal separation method is not suitable for most coal enterprises; if coal blending coking or direct fuel is used, resources are not fully utilized, and even pollutant discharge exceeds standard.
The invention content is as follows:
the invention aims to provide a tar residue treatment system which is efficient, environment-friendly, low in cost, thorough in recovery and easy to realize large-scale and continuous production.
The invention is implemented by the following technical scheme: a tar residue treatment system comprises a high-temperature alkaline liquid environment unit, a stirring device, a residue pumping device, a standing layering device, a filter pressing device and a first carbonization device;
agitating unit with it all sets up to take out the sediment device in the high temperature alkaline liquid state environment unit, the liquid outlet of high temperature alkaline liquid state environment unit with the inlet intercommunication of the decker that stews, take out the discharge gate of sediment device with filter pressing device's feed inlet intercommunication, filter pressing device's slag notch with the feed inlet intercommunication of first carbomorphism device.
Further, high temperature alkaline liquid state environment unit includes heating device and alkali lye device, heating device's discharge gate with the feed inlet intercommunication of alkali lye device, the liquid outlet of alkali lye device with the inlet intercommunication of the layering device that stews, agitating unit with take out the sediment device and all set up in the alkali lye device, the feed inlet setting of taking out the sediment device is in the bottom of alkali lye device.
Further, the liquid outlet of the standing layering device is communicated with the liquid inlet of the alkali liquor device.
Further, the high-temperature alkaline liquid environment unit comprises a second carbonization device, a second gas purification device and a tar collection device, wherein a gas outlet of the second carbonization device is communicated with a gas inlet of the second gas purification device, an ammonia water spraying device is arranged in the second gas purification device, a liquid outlet of the second gas purification device is communicated with a liquid inlet of the tar collection device, a liquid outlet of the tar collection device is communicated with a liquid inlet of the standing layering device, the stirring device and the slag pumping device are both arranged in the tar collection device, and a feed inlet of the slag pumping device is arranged at the bottom of the tar collection device.
Further, the high-temperature alkaline liquid environment unit further comprises a circulating ammonia water device, a liquid outlet of the standing layering device is communicated with a liquid inlet of the circulating ammonia water device, and a liquid outlet of the circulating ammonia water device is communicated with a liquid inlet of the ammonia water spraying device.
Furthermore, the standing and layering device comprises a plurality of standing tanks connected in series, and an initial liquid inlet of each standing tank connected in series is communicated with a liquid outlet of the high-temperature alkaline liquid environment unit.
Further, the device also comprises a first gas purification device, wherein a gas inlet of the first gas purification device is communicated with a gas outlet of the first carbonization device.
Further, the stirring device is a stirring pump, and the filter pressing device is a filter press.
Further, the slag pumping device is a submerged pump.
Further, the first carbonization device is a carbonization furnace.
The invention has the advantages that:
the tar residue treatment system provided by the invention comprises a high-temperature alkaline liquid environment unit, a stirring device, a residue pumping device, a standing layering device, a filter pressing device and a first carbonization device; firstly, providing a high-temperature alkaline liquid environment for the tar residues by using a high-temperature alkaline liquid environment unit, reducing the viscosity of the tar residues, and stirring by using a stirring device to realize primary separation of the tar residues; and then, conveying the primarily separated tar residues into a pressure filter for secondary separation by using a residue extraction device, and conveying the separated tar residues into a first carbonization device for high-temperature dry distillation to realize tertiary separation and produce crude gas and coke powder. According to the tar residue treatment system, the tar residue can be efficiently and thoroughly recovered through three steps of separation treatment on the tar residue, and products such as coal tar, coke powder and the like generated in each separation process can be sold or used by oneself, so that various problems caused by improper treatment of the tar residue are avoided, and extra economic benefits are brought to enterprises; meanwhile, most of the equipment in the invention is common equipment for coal enterprises, and high-cost and high-pollution equipment and materials are not used, so that the cost is low, the environment is protected, and the large-scale and continuous production is very easy to realize.
Furthermore, the tar residue treatment system provided by the invention can also provide a high-temperature alkaline liquid environment for the tar residue by using equipment in the traditional coking route, namely, a carbonization device, a gas purification device and a tar collecting device in the traditional coking route are used as high-temperature alkaline liquid environment units, so that the treatment process of the tar residue is greatly simplified, the requirement for newly added tar residue treatment equipment and materials is reduced, and the tar residue treatment system is very convenient for common coal enterprises to adopt and implement.
Description of the drawings:
fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
The parts in the drawings are numbered as follows:
a high-temperature alkaline liquid environment unit 10, a heating device 110, a feed inlet 1101 of the heating device 110, a discharge outlet 1102 of the heating device 110, an alkaline liquid device 120, a feed inlet 1201 of the alkaline liquid device 120, a discharge outlet 1202 of the alkaline liquid device 120, a liquid inlet 1203 of the alkaline liquid device 120, a second carbonization device 130, a gas outlet 1302 of the second carbonization device 130, a second gas purification device 140, a gas inlet 1401 of the second gas purification device 140, an ammonia water spray device 141, a liquid inlet 1411 of the ammonia water spray device 141, a liquid outlet 1402 of the second gas purification device 140, a tar collection device 150, a liquid inlet 1501 of the tar collection device 150, a liquid outlet 1502 of the tar collection device 150, a circulating ammonia water device 160, a liquid inlet 1601 of the circulating ammonia water device 160, a liquid outlet 1602 of the circulating ammonia water device 160, a stirring device 20, a slag pumping device 30, a feed inlet 301 of the slag pumping device 30, a discharge outlet 302 of the slag pumping device 30, the device comprises a filter pressing device 40, a feeding hole 401 of the filter pressing device 40, a slag outlet 402 of the filter pressing device 40, a first carbonization device 50, a feeding hole 501 of the first carbonization device 50, an air outlet 502 of the first carbonization device 50, a standing tank 60, an initial liquid inlet 601 of the standing tank 60, a tail liquid outlet 602 of the standing tank 60, a first gas purification device 70 and a gas inlet 701 of the first gas purification device 70.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a tar residue treatment system, which includes a high-temperature alkaline liquid environment unit 10, a stirring device 20, a residue extraction device 30, a standing and layering device, a filter-pressing device 40, and a first carbonization device 50;
the stirring device 20 and the slag pumping device 30 are both arranged in the high-temperature alkaline liquid environment unit 10, the liquid outlet of the high-temperature alkaline liquid environment unit 10 is communicated with the liquid inlet of the standing layering device, the discharge hole 302 of the slag pumping device 30 is communicated with the feed inlet 401 of the filter pressing device 40, and the slag outlet 402 of the filter pressing device 40 is communicated with the feed inlet 501 of the first carbonization device 50.
It should be noted that, under the high-temperature alkaline liquid environment, the viscosity of the tar residue is reduced, the coal tar therein is easier to separate, and the solution is stirred simultaneously, so that the separation process of the tar residue is easier.
The high-temperature alkaline liquid environment unit 10 is arranged to provide a high-temperature alkaline liquid environment for the tar residues, so that the viscosity of the tar residues is reduced, the tar residues are easier to separate from tar, meanwhile, the stirring device 20 is used for stirring to realize the primary separation of the tar residues, and liquid products after the tar residues are separated can be sent into a standing layering device for separation; and then, the residue extraction device 30 is used for sending the primarily separated tar residues into a filter pressing device 40 for secondary separation, and the separated tar residues are sent into a first carbonization device 50 for high-temperature dry distillation to realize tertiary separation and produce crude gas and coke powder. The tar residue treatment system of the embodiment can realize efficient and thorough recovery of tar residues through three-step separation treatment of the tar residues, and products such as coal tar, coke powder and the like generated in each separation process can be sold or used by oneself, so that various problems caused by improper treatment of the tar residues are avoided, and extra economic benefits are brought to enterprises; meanwhile, most of the devices in the embodiment are common devices for coal enterprises, high-cost and high-pollution devices and materials are not used, the cost is low, the environment is protected, and large-scale and continuous production is easy to realize.
It should be noted that the optional conditions when the tar residue is stirred in the high-temperature alkaline liquid environment unit 10 are as follows: the temperature is 72 ℃ to 80 ℃, the pH value is 7.6 to 9.2, and the stirring speed is 1280 r/min.
It should be noted that the tar residue is carbonized at a high temperature of 620 ℃ to 720 ℃ in the first carbonization device 50, wherein the high temperature carbonization temperature is higher than the high temperature carbonization temperature (550 ℃ to 580 ℃) of the carbonization device in the traditional coking route, so as to decompose the tar residue more completely.
As an example, the high-temperature alkaline liquid environment unit 10 comprises a heating device 110 and an alkaline liquid device 120, a discharge port 1102 of the heating device 110 is communicated with a feed port 1201 of the alkaline liquid device 120, a liquid outlet 1202 of the alkaline liquid device 120 is communicated with a liquid inlet of the standing and layering device, the stirring device 20 and the slag extracting device 30 are both arranged in the alkaline liquid device 120, and a feed port 301 of the slag extracting device 30 is arranged at the bottom of the alkaline liquid device 120.
It should be noted that the liquid product after the tar residue is separated from the alkali liquor device 120 is sent into the standing and layering device for standing and layering, and then the tar and the alkaline liquid can be separated.
It should be noted that the lye unit 120 can be an ammonia tank.
As an example, the liquid outlet of the standing and layering device is communicated with the liquid inlet 1203 of the alkali liquor device 120.
It should be noted that, the alkaline liquid separated from the standing and layering device is sent to the alkaline liquid device 120 again for recycling, so that the waste of resources can be effectively avoided, and the treatment cost is greatly saved.
By way of example, the standing and layering device comprises a plurality of standing tanks 60 connected in series, wherein initial liquid inlets 601 of the plurality of standing tanks 60 connected in series are communicated with a liquid outlet of the high-temperature alkaline liquid environment unit 10, and specifically, initial liquid inlets 601 of the plurality of standing tanks 60 connected in series are communicated with a liquid outlet 1202 of the alkali device 120.
It should be noted that, a plurality of standing tanks 60 connected in series may be communicated with the liquid inlet 1203 of the alkali solution apparatus 120 through the last liquid outlet 602, or may be communicated with the liquid inlet 1203 of the alkali solution apparatus 120 through a total liquid outlet after the liquid outlets on each standing tank 60 are collected, and the specific connection mode may be set according to actual conditions, and in fig. 1, the last liquid outlet 602 is communicated with the liquid inlet 1203 of the alkali solution apparatus 120 as an example.
As an example, the tar slag treatment system of the embodiment further includes a first gas purification device 70, and a gas inlet 701 of the first gas purification device 70 is communicated with a gas outlet 502 of the first carbonization device 50, so as to perform cooling and purification treatment on the crude gas generated in the first carbonization device 50, and further separate coal tar contained in the crude gas.
It should be noted that the first gas purification device 70 may include a gas collecting pipe, a venturi tower, a cyclone tower, and an electrical tar precipitator, which are all in the prior art, and are not described herein again, and the specific combination of the devices may be selected according to actual requirements.
Illustratively, the agitation device 20 is an agitation pump and the pressure filtration device 40 is a filter press.
As an example, the slag extraction device 30 is a submerged pump.
As an example, the first carbonization device 50 is a carbonization furnace.
The specific use of this example is as follows:
sending the tar residues into the heating device 110 through a feeding hole 1101 of the heating device 110 for heating, then sending the tar residues into the alkali liquor device 120 through a feeding hole 1201 of the alkali liquor device 120, realizing primary separation of the tar residues under the stirring action of the stirring device 20, pumping the tar residues after primary separation into the pressure filtration device 40 for secondary separation through the residue pumping device 30, and sending liquid products obtained after primary separation into the standing tank 60 for standing and layering, thereby separating tar and alkaline liquid; the filter pressing device 40 can further separate part of the coal tar in the tar residue, the tar residue separated after the secondary separation by the filter pressing device 40 is sent to the first carbonization device 50 for high-temperature dry distillation to realize the tertiary separation and produce crude gas and coke powder, wherein the crude gas is further cooled and purified by the first gas purification device 70 to separate the coal tar in the crude gas, and the products such as the coal tar, the coke powder and the like produced in each separation treatment step can be sold or used by oneself, and in practical application, the tar residue treated by the system of the embodiment achieves a recovery rate close to 100%.
Example two:
as shown in fig. 2, the present embodiment provides a tar residue processing system, which has the same basic structure as that in the first embodiment, and is not repeated herein, and the differences from the first embodiment are as follows:
in this embodiment, the high-temperature alkaline liquid environment unit 10 includes a second carbonization device 130, a second gas purification device 140 and a tar collection device 150, an air outlet 1302 of the second carbonization device 130 is communicated with an air inlet 1401 of the second gas purification device 140, an ammonia spray device 141 is disposed in the second gas purification device 140, an air outlet 1402 of the second gas purification device 140 is communicated with an air inlet 1501 of the tar collection device 150, an air outlet 1502 of the tar collection device 150 is communicated with an air inlet of the standing and layering device, the stirring device 20 and the slag extraction device 30 are both disposed in the tar collection device 150, and an air inlet 301 of the slag extraction device 30 is disposed at the bottom of the tar collection device 150.
It should be noted that the second carbonization device 130, the second gas purification device 140, and the tar collection device 150 in the tar residue treatment system of this embodiment are all devices in the conventional coking route, wherein the furnace temperature of the second carbonization device 130 is 580-620 ℃, and the temperature is higher than the furnace temperature (550-580 ℃) of the carbonization device in the conventional coking route, so as to increase the temperature of the discharged gas, thereby increasing the temperature of the tar residue collected after being sprayed by the ammonia water spraying device 141 in the subsequent second gas purification device 140, and then the high-temperature tar residue mixed with ammonia water and collected by the tar collection device 150 can be used as the tar residue in the high-temperature alkaline liquid environment for stirring.
It should be noted that the second carbonization device 130 can be a carbonization furnace; the second gas purification device 140 can comprise a gas collecting pipe, a Venturi tower, a cyclone tower and an electric tar precipitator, the ammonia water spraying device 141 can comprise an ammonia water sprayer, an ammonia water spraying pipe and the like, and the specific equipment combination can be selected according to actual requirements; the tar collecting device 150 may be a tar collecting tank, and the above devices are all in the prior art and will not be described herein.
The embodiment utilizes the equipment in the traditional coking route to directly provide the high-temperature alkaline liquid environment for the tar residue, namely utilizes the carbonization device, the gas purification device and the tar collecting device in the traditional coking route as the high-temperature alkaline liquid environment unit 10, greatly simplifies the treatment process of the tar residue, reduces the requirement of newly-added tar residue treatment equipment and materials, and is very convenient for common coal enterprises to adopt and implement.
By way of example, the standing and layering device comprises a plurality of standing tanks 60 connected in series, wherein initial liquid inlets 601 of the plurality of standing tanks 60 connected in series are communicated with a liquid outlet of the high-temperature alkaline liquid environment unit 10, and specifically, the initial liquid inlets 601 of the plurality of standing tanks 60 connected in series are communicated with a liquid outlet 1502 of the tar collecting device 150.
As an example, the high-temperature alkaline liquid environment unit 10 further includes a circulating ammonia water device 160, a liquid outlet of the standing and layering device is communicated with a liquid inlet 1601 of the circulating ammonia water device 160, and a liquid outlet 1602 of the circulating ammonia water device 160 is communicated with a liquid inlet 1411 of the ammonia water spraying device 141.
It should be noted that the circulating ammonia water device 160 may be a circulating ammonia water system in a conventional coking route, which is a prior art and is not described herein again.
It should be noted that, a plurality of standing tanks 60 connected in series may be communicated with the liquid inlet 1601 of the circulating ammonia water apparatus 160 through the last liquid outlet 602, or may be communicated with the liquid inlet 1601 of the circulating ammonia water apparatus 160 through a total liquid outlet after the liquid outlets of each standing tank 60 are collected, and the specific connection mode may be set according to an actual situation, and fig. 2 illustrates that the last liquid outlet 602 is communicated with the liquid inlet 1601 of the circulating ammonia water apparatus 160.
It should be noted that, in this embodiment, the liquid product entering the standing and layering device is a tar ammonia water mixture, and after standing and layering, the separated ammonia water is sent to a circulating ammonia water system in a traditional coking route for recycling, so that waste of resources can be effectively avoided, and the treatment cost is greatly saved.
In practical application, the tar residue treated by the system of the embodiment achieves a recovery rate close to 100%.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A tar residue treatment system is characterized by comprising a high-temperature alkaline liquid environment unit, a stirring device, a residue pumping device, a standing and layering device, a filter pressing device and a first carbonization device;
agitating unit with it all sets up to take out the sediment device in the high temperature alkaline liquid state environment unit, the liquid outlet of high temperature alkaline liquid state environment unit with the inlet intercommunication of the decker that stews, take out the discharge gate of sediment device with filter pressing device's feed inlet intercommunication, filter pressing device's slag notch with the feed inlet intercommunication of first carbomorphism device.
2. The tar residue treatment system of claim 1, wherein the high-temperature alkaline liquid environment unit comprises a heating device and an alkali solution device, a discharge port of the heating device is communicated with a feed port of the alkali solution device, a liquid outlet of the alkali solution device is communicated with a liquid inlet of the standing layering device, the stirring device and the residue pumping device are both arranged in the alkali solution device, and the feed port of the residue pumping device is arranged at the bottom of the alkali solution device.
3. The tar residue treatment system of claim 2, wherein the liquid outlet of the standing and layering device is communicated with the liquid inlet of the alkali liquor device.
4. The tar residue treatment system according to claim 1, wherein the high-temperature alkaline liquid environment unit comprises a second carbonization device, a second gas purification device and a tar collection device, an air outlet of the second carbonization device is communicated with an air inlet of the second gas purification device, an ammonia water spraying device is arranged in the second gas purification device, an air outlet of the second gas purification device is communicated with an air inlet of the tar collection device, an air outlet of the tar collection device is communicated with an air inlet of the standing layering device, the stirring device and the residue extraction device are both arranged in the tar collection device, and an air inlet of the residue extraction device is arranged at the bottom of the tar collection device.
5. The tar residue treatment system of claim 4, wherein the high-temperature alkaline liquid environment unit further comprises a circulating ammonia water device, a liquid outlet of the standing layering device is communicated with a liquid inlet of the circulating ammonia water device, and a liquid outlet of the circulating ammonia water device is communicated with a liquid inlet of the ammonia water spraying device.
6. The tar residue treatment system according to any one of claims 1 to 5, wherein the standing and layering device comprises a plurality of standing tanks connected in series, and initial liquid inlets of the plurality of standing tanks connected in series are communicated with liquid outlets of the high-temperature alkaline liquid environment unit.
7. The tar residue treatment system according to any one of claims 1 to 5, further comprising a first gas purification device, wherein a gas inlet of the first gas purification device is communicated with a gas outlet of the first carbonization device.
8. The tar slag treatment system according to any one of claims 1 to 5, wherein the stirring device is a stirring pump and the pressure filtration device is a filter press.
9. The tar slag treatment system of any one of claims 1-5, wherein the slag extraction device is a submerged pump.
10. The tar slag treatment system according to any one of claims 1 to 5, wherein the first carbonization device is a carbonization furnace.
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| CN202011581330.6A CN113502168A (en) | 2020-12-28 | 2020-12-28 | Tar residue processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653108A (en) * | 2022-04-15 | 2022-06-24 | 山东钢铁集团日照有限公司 | Separation process of coal coking tar residues |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653108A (en) * | 2022-04-15 | 2022-06-24 | 山东钢铁集团日照有限公司 | Separation process of coal coking tar residues |
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