CN110669540A - Totally enclosed environmental protection recovery control system of coal tar chemical industry tar sediment - Google Patents
Totally enclosed environmental protection recovery control system of coal tar chemical industry tar sediment Download PDFInfo
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- CN110669540A CN110669540A CN201911068395.8A CN201911068395A CN110669540A CN 110669540 A CN110669540 A CN 110669540A CN 201911068395 A CN201911068395 A CN 201911068395A CN 110669540 A CN110669540 A CN 110669540A
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- 238000011084 recovery Methods 0.000 title claims abstract description 34
- 239000000126 substance Substances 0.000 title claims abstract description 24
- 239000011269 tar Substances 0.000 title claims description 31
- 230000007613 environmental effect Effects 0.000 title claims description 5
- 239000013049 sediment Substances 0.000 title claims description 4
- 239000011280 coal tar Substances 0.000 title abstract description 14
- 239000011273 tar residue Substances 0.000 claims abstract description 69
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 239000002893 slag Substances 0.000 claims abstract description 51
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 33
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 238000000227 grinding Methods 0.000 claims abstract description 8
- 238000010926 purge Methods 0.000 claims description 18
- 239000003245 coal Substances 0.000 claims description 11
- 238000004939 coking Methods 0.000 claims description 10
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- 241000405070 Percophidae Species 0.000 claims description 2
- 239000000571 coke Substances 0.000 claims 9
- 238000000034 method Methods 0.000 abstract description 11
- 230000007547 defect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000000926 separation method Methods 0.000 description 6
- 238000007667 floating Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000011335 coal coke Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 239000010909 process residue Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- 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
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a fully-sealed environment-friendly recovery control system for tar residue in coal tar chemical industry, and belongs to the field of pollution treatment. The invention comprises an emulsifier, a two-phase separator and a tar residue tank, wherein a passive liquid level switch is arranged in the emulsifier, an outlet of the emulsifier is connected with the two-phase separator through a pipeline, and an eccentric ball valve, a grinding pump and a delivery pump are arranged on the outlet pipeline; the outer side of the slag discharging pipe at the bottom of the two-phase separator is sleeved with a sealing cover in a matching manner, the sealing cover is connected with the driving arm and driven by the driving arm to ascend and descend, the sealing cover is used for sealing an opening at the top of a tar residue tank below, the tar residue tank is arranged on the trolley, and the trolley is provided with a laser range finder. The method overcomes the defect that the tar residue treatment in the prior art is difficult to automatically operate, can effectively improve the operation environment of the tar residue recovery treatment, and has more convenient automatic control operation, strong adaptability and wide application prospect.
Description
Technical Field
The invention relates to the technical field of automatic control of pollutant treatment in the coal coking production process, in particular to a fully-sealed environment-friendly recovery control system for tar residue in coal coking chemical industry.
Background
The tar residue is sticky solid waste residue which is generated in the coal coking production process and is adsorbed with coal tar, and mainly comprises polycyclic aromatic hydrocarbon, benzene, phenols, naphthalene, coal powder, coke powder and the like. The tar residues have corrosiveness and adhesiveness, have certain fluidity at a certain temperature, and cause serious pollution to the surrounding environment and underground water resources due to improper storage. In addition, the volatile escape of the tar residues causes serious pollution to the surrounding air, and the physical and mental health of enterprise workers and surrounding people is affected. The tar residues belong to dangerous solid wastes specified in the clear text of the State environmental protection administration, and are respectively tar residues (252-005-11) in a tar storage facility in the coal tar refining process, tar residues (252-002-11) at the bottom of a clarification facility in the coking process, and tar residues (250-004-11) in a tar storage facility in the coking and coking byproduct recovery process, and are respectively listed in national dangerous waste records HW 11.
The treatment of the tar residue usually comprises two relatively independent links of tar residue dilution and oil residue separation, an emulsifier and a solid-liquid two-phase separator are commonly adopted to cooperate, and the normal operation of the system is determined by the correlation relationship between the emulsifier and the solid-liquid two-phase separator. At present, the treatment device for the tar residues in the industry is generally operated manually, the treatment device is operated in an open loop mode, harmful gas is emitted to pollute the environment, the labor intensity of the whole operation is high, and the production operation is inconvenient. How to effectively and uniformly realize automatic control on the dilution of the tar residue and the separation of the oil residue is a difficult problem which troubles the tar residue separation technology.
Through retrieval, relevant patents are published on the tar residue treatment technology, and the Chinese patent application number is as follows: 2017216022137, the name of invention creation is: the application discloses a tar residue treatment system, which comprises a liquefier and a solid-liquid separator, wherein the liquefier is used for bearing a feed opening of a mechanical clarifying tank, a stirring device is arranged in the liquefier, a water jacket is sleeved on the peripheral wall of the liquefier, and a liquid inlet and a liquid outlet for circulating ammonia water are formed in the water jacket; an outlet at the lower end of the liquefier is communicated with a feed inlet of a solid-liquid separator through a slurry pump, the solid-liquid separator is provided with a slag hole and a discharge hole, a slag collecting groove is arranged below the slag hole, and the discharge hole is communicated with a mechanical clarifying groove through a pipeline; and the feed opening of the mechanical clarifying tank is communicated with the liquid inlet of the liquefier through a tar sealing device. The application solves the problem that the environment is polluted due to the overflow of polluted gas caused by the unsealed condition between the original tar slag box and the feed opening, has high recycling rate, can directly mix the separated coal into the coking coal for use, has no peculiar smell, and eliminates the environmental pollution caused by mixing the tar slag with the coal. But the application still has room for optimizing the lift.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defect that the tar residue treatment in the prior art is difficult to automatically operate, and provides a fully-sealed environment-friendly recovery control system for the tar residue in the coal tar chemical industry, which can effectively improve the operation environment of the tar residue recovery treatment, and has the advantages of more convenient automatic control operation, strong adaptability and wide application prospect.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention discloses a totally-sealed environment-friendly recovery control system for tar residues in coal tar chemical industry, which comprises an emulsifier, a two-phase separator and a tar residue tank, wherein a passive liquid level switch is arranged in the emulsifier, an outlet of the emulsifier is connected with the two-phase separator through a pipeline, and an eccentric ball valve, a grinding pump and a delivery pump are arranged on the outlet pipeline; the outer side of the slag discharging pipe at the bottom of the two-phase separator is sleeved with a sealing cover in a matching manner, the sealing cover is connected with the driving arm and driven by the driving arm to ascend and descend, the sealing cover is used for sealing an opening at the top of a tar residue tank below, the tar residue tank is arranged on the trolley, and the trolley is provided with a laser range finder.
Furthermore, a switch purging device used for cleaning and purging the passive liquid level switch is further arranged in the emulsifier, and the switch purging device is obliquely arranged on the side edge of the passive liquid level switch and gradually reduces in height along the direction close to the passive liquid level switch.
Furthermore, switch purgers are respectively arranged on two sides of the passive liquid level switch, and at least one switch purger is purged by ammonia water.
Furthermore, switch purgers are respectively arranged on two sides of the passive liquid level switch, wherein steam purges are adopted on one side, and ammonia water purges are adopted on the other side.
Furthermore, the inner diameter of a nozzle of the switch purging device gradually shrinks along the direction close to the passive liquid level switch, the cross section of the end part of the nozzle is circular, and a plurality of diversion trenches are arranged on the inner wall of the nozzle at intervals along the length direction.
Furthermore, a protection plate is arranged in the emulsifier, the protection plate covers the passive liquid level switch, and the protection plate gradually inclines downwards along the direction far away from the inner wall of the emulsifier.
Furthermore, a protection plate blower is arranged above the protection plate, the protection plate blower gradually inclines downwards to be close to the protection plate, the inner diameter of a nozzle of the protection plate blower gradually shrinks, and the end part of the nozzle is in a duckbill shape.
Furthermore, the laser range finder is embedded in the edge of the trolley and is 5-10mm away from the edge of the trolley.
Furthermore, positioning convex blocks are arranged on two sides of the bottom of the tar residue tank, positioning clamping grooves are correspondingly arranged on two sides of the top of the trolley, and the positioning convex blocks are matched and embedded into the positioning clamping grooves to realize positioning.
Furthermore, the device also comprises a controller, wherein the passive liquid level switch, the eccentric ball valve, the grinding pump, the delivery pump, the driving arm, the trolley and the laser range finder are respectively connected with and controlled by the controller, a frequency converter for controlling the running speed is arranged in the two-phase separator, and the frequency converter is also connected with and controlled by the controller.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) the totally-sealed environment-friendly recovery control system for the tar residues in the coal tar chemical industry reduces the emission of pollutants, solves the problem of extraction of effective products in wastes, simplifies the production process requirements, reduces the production cost, increases the economic benefit, can conveniently and accurately position and automatically operate the tar residue environment-friendly recovery equipment without increasing the process time, does not need manual operation, and is suitable for popularization and application.
(2) According to the fully-sealed environment-friendly recovery control system for the tar residue in the coal tar chemical industry, the switch blower for cleaning and blowing the passive liquid level switch is further arranged in the emulsifier, the nozzle of the switch blower is aligned to the rotating shaft of the floating ball liquid level switch for blowing, the tar residue adhered to the rotating shaft is effectively blown and blown, and the purpose of smooth and free detection of the floating ball liquid level switch is achieved.
(3) According to the fully-sealed environment-friendly recovery control system for the tar residues in the coal tar chemical industry, the emulsifier is internally provided with the protection plate, and the protection plate is covered above the passive liquid level switch to prevent the tar residues from dropping and adhering to the passive liquid level switch; the protection board purger is arranged above the protection board, and tar residue dirt on the protection board is effectively removed.
Drawings
FIG. 1 is a schematic structural diagram of a fully-sealed environment-friendly recovery control system for tar residue in coal tar chemical industry according to the present invention;
FIG. 2 is a schematic diagram of the arrangement of the switch purge of the present invention;
fig. 3 is a schematic structural view of the cart of the present invention.
The reference numerals in the schematic drawings illustrate:
100. an emulsifier; 101. a feed inlet; 102. a sealing tube; 103. a liquid outlet of the heat preservation container; 104. a liquid inlet of the heat preservation container; 105. an eccentric ball valve; 106. a grinding pump; 107. a delivery pump; 110. a heat preservation container; 120. a passive level switch; 121. switching a blower; 130. a protection plate; 131. protecting the panel purge;
200. a two-phase separator; 201. an exhaust gas outlet; 202. a discharge port; 203. a slag outlet; 204. a slag pipe;
300. a tar slag tank; 301. positioning the bump; 310. a track; 320. a trolley; 321. a laser range finder; 322. positioning the clamping groove;
400. a cylinder body with a sealing cover; 410. a drive arm; 420. and (7) sealing the cover.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The present invention will be further described with reference to the following examples.
Example 1
As shown in fig. 1, the totally-sealed environment-friendly recovery control system for tar residue in coal tar chemical industry of this embodiment includes an emulsifier 100, a two-phase separator 200, and a tar residue tank 300, wherein the emulsifier 100 is covered with a thermal insulation container 110, the top and the bottom of the thermal insulation container 110 are respectively provided with a thermal insulation container liquid outlet 103 and a thermal insulation container liquid inlet 104, and the top of the emulsifier 100 is provided with a charging hole 101; and a sealing pipe 102 is further arranged between the feed inlet 101 and the top of the emulsifier 100, an outlet is arranged at the bottom of the emulsifier 100 and is connected with the two-phase separator 200 through a pipeline, a waste gas outlet 201 is arranged at the top of the two-phase separator 200, a discharge hole 202 is arranged at one side of the two-phase separator 200, a slag outlet 203 is arranged at the bottom of the two-phase separator 200, tar residues are discharged outwards from the slag outlet 203 through a slag outlet pipe 204, the trolley 320 is positioned below the slag outlet pipe 204 and is used for receiving slag materials, and the trolley 320 is moved away after full materials are received. At present, the conventional recovery system in the industry generally adopts manual operation and operates in an open loop mode, harmful gas is emitted to pollute the environment during slag discharging, and the solid-liquid mixing state, the tar slag conveying capacity state, the tar slag solid-liquid separation state and the slag discharging state of the tar slag are difficult to effectively measure and control, so that the whole treatment process cannot realize automatic operation, and a great deal of inconvenience is brought to the actual production. The embodiment is researched aiming at the problem, the tar residue full-sealed environment-friendly recovery control device is successfully developed by adopting an instrument, electricity, machine and information four-in-one technology, the tar residue full-sealed environment-friendly recovery control device can automatically and accurately measure and control the tar residue recovery process, follows advanced, practical and reliable principles, has strong adaptability and wide application prospect, and creates conditions for energy conservation and emission reduction of coal coke chemical enterprises.
Specifically, in the present embodiment, a passive liquid level switch 120 is disposed in the emulsifier 100, specifically, a floating ball liquid level switch may be used, an outlet of the emulsifier 100 is connected to the two-phase separator 200 through a pipeline, an eccentric ball valve 105, a grinding pump 106 and a delivery pump 107 are sequentially disposed on the outlet pipeline, the eccentric ball valve 105 may specifically be a pneumatic eccentric ball valve, an emulsion in the emulsifier 100 contains granular solids, and tar residues are sticky, and the eccentric ball valve 105 may be used to chop the blocked granular solids and make the emulsion flow smoothly and stably; the outer side of the slag discharging pipe 204 at the bottom of the two-phase separator 200 is sleeved with a sealing cover 420 in a matching way, the sealing cover 420 is connected with a driving arm 410 and driven by the driving arm to lift up and down, the sealing cover 420 is used for sealing the top opening of the tar slag tank 300 below, specifically, the outer side of the slag discharging pipe 204 is sleeved with a sealing cover cylinder 400, the sealing cover cylinder 400 can move up and down along the height direction of the outer side of the slag discharging pipe 204, or the sealing cover cylinder 400 can be made of elastic contraction materials and can stretch and contract up and down along the height direction, the bottom of the sealing cover cylinder 400 is the sealing cover 420 extending towards the outer edge, the middle part of the sealing cover 420 is provided with a covering cavity matched with the top opening of the tar slag tank 300, so that the sealing cover 420 can be clamped at the top of, the working environment is obviously improved. The driving arm 410 can be realized by adopting a pushing power device such as an air cylinder or a hydraulic cylinder, as shown in fig. 1, a supporting frame for placing the pushing power device can be arranged outside the slag discharging pipe 204, one end of the driving arm 410 is arranged on the supporting frame, the telescopic end of the driving arm 410 is connected with the sealing cover 420, the sealing cover 420 is driven to run up and down, two driving arms 410 are symmetrically arranged on two sides of the sealing cover 420, and stable lifting of the sealing cover 420 is fully ensured.
In this embodiment, the tar slag tank 300 is disposed on the cart 320, and the laser range finder 321 is disposed on the cart 320. In this embodiment, the track 310 for the trolley 320 to run directionally is cooperatively arranged on the ground of the workshop, the trolley 320 runs stably along the track 310, and the laser range finder 321 is embedded inside the edge of the trolley 320 and is 5-10mm away from the edge of the trolley 320, so that accidental damage to the laser range finder 321 in the use process is prevented. In the embodiment, the laser range finder 321 is adopted to effectively monitor and judge the running distance of the trolley 320 along the track 310, when the trolley 320 carries the tar slag tank 300 to run to a specified position, namely just below the sealing cover 420, the trolley 320 stops running, at the moment, the driving arm 410 drives the sealing cover 420 to move downwards to enable the sealing cover to be accurately sealed at the top of the tar slag tank 300, then the slag discharge pipe 204 starts to discharge slag, the slag discharge in a sealed environment is realized, after the slag discharge is finished, the driving arm 410 drives the sealing cover 420 to move upwards to enable the sealing cover to be separated from the tar slag tank 300, the trolley 320 continues to move forwards to transport slag, and the full-sealing automatic. As shown in fig. 3, in this embodiment, two sides of the bottom of the tar slag tank 300 are provided with the positioning protrusions 301, two sides of the top of the trolley 320 are correspondingly provided with the positioning slots 322, the positioning protrusions 301 are embedded into the positioning slots 322 to achieve positioning, and the positioning slots 322 are set to be tapered opening slots, so that the positioning protrusions 301 and the positioning slots 322 are correspondingly arranged, which is not only beneficial to placing the tar slag tank 300, but also beneficial to achieving accurate position positioning of the tar slag tank 300 on the trolley 320, and further ensures the accuracy of the sealing cover 420 for sealing the tar slag tank 300.
In the embodiment, a PLC controller is adopted to realize tight matching among the processes, the passive liquid level switch 120, the eccentric ball valve 105, the grinding pump 106, the delivery pump 107, the driving arm 410, the trolley 320 and the laser range finder 321 are respectively connected with the PLC controller and controlled by the controller, a frequency converter for controlling the running speed is arranged in the two-phase separator 200, the frequency converter is also connected with the PLC controller and controlled by the PLC controller, the two-phase separator 200 adopts a frequency converter driving motor, so that the control of the rotating speed of the two-phase separator 200 is realized, the optimal separation effect of the two-phase separator 200 is maintained in an energy-saving mode, and the problem of high-efficiency, energy-saving and heavy-load running of the two-phase separator 200 is solved. The trolley 320 can also adopt a frequency converter driving motor, and the motion of the trolley 320 is controlled by a PLC controller.
The method for performing automatic control by using the control system of the embodiment specifically comprises the following steps:
s1, detecting the emulsification state position of the tar residue by the passive liquid level switch 120 in the emulsifier 100 and sending a signal to the PLC, and outputting the signal to the eccentric ball valve 105 by the PLC to control the tar residue emulsion to be automatically output;
s2, the two-phase separator 200 calculates the flow rate conveyed to the delivery pump 107 by using the operation of the delivery pump, calculates the output frequency of the frequency converter by using the flow rate signal, and controls the rotating speed of the two-phase separator 200 to realize energy-saving separation;
s3, accurately positioning the tar slag tank 300 on a trolley 320, driving the trolley 320 to run along a track 310, tracking and detecting the movement position of the trolley 320 by a laser range finder 321 arranged on the trolley 320, sending a signal to a PLC (programmable logic controller), outputting a signal to a driving frequency converter of the trolley 320 by the PLC, and controlling the accurate positioning of the trolley 320 and the tar slag tank 300;
s4, after the trolley 320 is positioned, a position signal is sent to the PLC controller, the PLC controller outputs a signal to the driving arm 410 to drive the sealing cover 420 to move downwards to seal the top of the tar slag tank 300, then the PLC controller outputs a signal to the slag discharging control valve of the two-phase separator 200 to enable the slag discharging pipe 204 to start slag discharging, after the slag discharging is finished, the PLC controller outputs a signal to the driving arm 410 to drive the sealing cover 420 to move upwards to be separated from the top of the tar slag tank 300, and then the PLC controller controls the trolley 320 to continue to convey.
The control system of this embodiment can effectively solve the severe environment problem of pollution that emulgator 100 and tar sediment jar 300 are located to realize the automation mechanized operation and the accurate control of totally enclosed environmental protection recovery technology through the PLC controller, have the significance to solving the coal coking production pollution problem: the tar residue coal blending pelletizing process equipment is omitted, the investment is reduced, and the equipment depreciation and energy consumption are reduced; at least 30% of tar in the tar residues is effectively recovered, and the coal coking production benefit is increased; the tar residue recovery process realizes full-sealed operation, and reduces the emission of harmful gases; the tar residue is processed in an environment-friendly way to become residue powder containing 10% of water, so that the leakage of pollutants in the transportation process is avoided. In conclusion, the development of the tar residue full-sealed environment-friendly recovery control system reduces the emission of pollutants, solves the problem of extraction of effective products in wastes, simplifies the production process requirement, reduces the production cost, increases the economic benefit, can conveniently perform accurate positioning and automatic operation of tar residue environment-friendly recovery equipment without increasing the working procedure time, does not need manual operation, and is suitable for popularization and application.
Example 2
The totally-sealed environment-friendly recovery control system for tar residue in coal tar chemical industry of the embodiment is basically the same as that of embodiment 1, and further, in the embodiment, a switch purging device 121 for cleaning and purging the passive liquid level switch 120 is further arranged in the emulsifier 100, as shown in fig. 1, the switch purging device 121 is obliquely arranged on the side edge of the passive liquid level switch 120, and the height of the switch purging device is gradually reduced along the direction close to the passive liquid level switch 120. As shown in fig. 2, switch purgers 121 are respectively disposed on two sides of the passive liquid level switch 120, and at least one switch purger 121 is purged with ammonia water. Specifically, the two sides are symmetrically arranged and distributed at an included angle of 90 degrees, wherein one side is swept by high-temperature steam, and the other side is swept by ammonia water, so that oil residue solidification can be prevented, and tar residue adhesion can be effectively removed; the nozzles of the two-side switch purging device 121 are gradually contracted in inner diameter and circular in end section along the direction close to the passive liquid level switch 120, and a plurality of flow guide grooves are formed in the inner wall of each nozzle at intervals along the length direction, so that the purging pressure is increased, the water flow shape is changed, and the nozzles are rotationally purged. In the embodiment, the switch blower 121 is arranged, the nozzle of the switch blower is aligned with the rotating shaft of the floating ball liquid level switch to blow, tar residues adhered to the rotating shaft are effectively blown and removed, and the purpose of smooth and free detection of the floating ball liquid level switch is achieved.
Example 3
Basically, the totally-sealed environment-friendly recycling control system for tar residue in coal tar chemical industry according to the present embodiment is similar to the above-mentioned embodiment, further, in the present embodiment, the emulsifier 100 is further provided with a protection plate 130, the protection plate 130 is covered above the passive liquid level switch 120, and the protection plate 130 is gradually inclined downward along a direction away from the inner wall of the emulsifier 100. As shown in fig. 1, the protection plate 130 may be configured to be similar to an L shape, and a horizontally extending section thereof is covered above the passive liquid level switch 120, and then an end portion thereof is gradually inclined downward, so that the tar residue is convenient to slide downward, and the tar residue is prevented from being dropped and adhered to the passive liquid level switch 120; the protection plate purger 131 is arranged above the protection plate 130, the protection plate purger 131 gradually inclines downwards to be close to the protection plate 130, and specifically can form an included angle of 45 degrees with the horizontal extension section of the protection plate 130, and the nozzle inner diameter of the protection plate purger 131 gradually shrinks and the end of the nozzle is duckbilled, so that tar residue dirt on the protection plate 130 is effectively removed.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (10)
1. The utility model provides a coal coking chemical industry tar sediment totally enclosed environmental protection recovery control system which characterized in that: the device comprises an emulsifier (100), a two-phase separator (200) and a tar residue tank (300), wherein a passive liquid level switch (120) is arranged in the emulsifier (100), an outlet of the emulsifier (100) is connected with the two-phase separator (200) through a pipeline, and an eccentric ball valve (105), a grinding pump (106) and a delivery pump (107) are arranged on the outlet pipeline; the outer side of a slag discharging pipe (204) at the bottom of the two-phase separator (200) is sleeved with a sealing cover (420) in a matching manner, the sealing cover (420) is connected with a driving arm (410) and driven by the driving arm to lift up and down, the sealing cover (420) is used for sealing the top opening of a tar slag tank (300) below, the tar slag tank (300) is arranged on a trolley (320), and a laser range finder (321) is arranged on the trolley (320).
2. The fully-sealed environment-friendly recovery control system for the coke chemical tar residue as claimed in claim 1, characterized in that: still be equipped with in emulgator (100) and be used for carrying out switch purger (121) that clean purges to passive liquid level switch (120), switch purger (121) slope sets up in passive liquid level switch (120) side, and highly reduces gradually along being close to passive liquid level switch (120) direction.
3. The fully-sealed environment-friendly recovery control system for the coke chemical tar residue as claimed in claim 2, characterized in that: switch purgers (121) are respectively arranged on two sides of the passive liquid level switch (120), and at least one switch purger (121) is purged by ammonia water.
4. The fully-sealed environment-friendly recovery control system for the coke chemical tar residue as claimed in claim 3, characterized in that: switch purgers (121) are respectively arranged on two sides of the passive liquid level switch (120), wherein steam purging is adopted on one side, and ammonia water purging is adopted on the other side.
5. The fully-sealed environment-friendly recovery control system for the coke chemical tar residue as claimed in claim 2, characterized in that: the nozzle of the switch purging device (121) is gradually contracted in inner diameter along the direction close to the passive liquid level switch (120), the cross section of the end part of the nozzle is circular, and a plurality of diversion trenches are arranged on the inner wall of the nozzle at intervals along the length direction.
6. The fully-sealed environment-friendly recovery control system for the coke chemical tar residue as claimed in claim 2, characterized in that: a protection plate (130) is further arranged in the emulsifier (100), the protection plate (130) is covered above the passive liquid level switch (120), and the protection plate (130) is gradually inclined downwards along the direction far away from the inner wall of the emulsifier (100).
7. The fully-sealed environment-friendly recovery control system for the coke chemical tar residue as claimed in claim 6, characterized in that: a protection plate blower (131) is arranged above the protection plate (130), the protection plate blower (131) gradually inclines downwards to be close to the protection plate (130), the inner diameter of a nozzle of the protection plate blower (131) gradually shrinks, and the end part of the nozzle is in a duckbill shape.
8. The fully-sealed environment-friendly recovery control system for the coke chemical tar residue as claimed in claim 1, characterized in that: the laser range finder (321) is embedded in the edge of the trolley (320) and is 5-10mm away from the edge of the trolley (320).
9. The fully-sealed environment-friendly recovery control system for the coke chemical tar residue as claimed in claim 1, characterized in that: positioning convex blocks (301) are arranged on two sides of the bottom of the tar slag tank (300), positioning clamping grooves (322) are correspondingly arranged on two sides of the top of the trolley (320), and the positioning convex blocks (301) are matched and embedded into the positioning clamping grooves (322) to realize positioning.
10. The fully-sealed environment-friendly recovery control system for the coke chemical tar residue according to any one of claims 1 to 9, characterized in that: the device is characterized by further comprising a controller, wherein the passive liquid level switch (120), the eccentric ball valve (105), the grinding pump (106), the delivery pump (107), the driving arm (410), the trolley (320) and the laser range finder (321) are respectively connected with the controller and controlled by the controller, a frequency converter used for controlling the running speed is arranged in the two-phase separator (200), and the frequency converter is also connected with the controller and controlled by the controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911068395.8A CN110669540B (en) | 2019-11-05 | 2019-11-05 | Full-sealed environment-friendly recycling control system for tar residues in coal coking industry |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911068395.8A CN110669540B (en) | 2019-11-05 | 2019-11-05 | Full-sealed environment-friendly recycling control system for tar residues in coal coking industry |
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| CN110669540A true CN110669540A (en) | 2020-01-10 |
| CN110669540B CN110669540B (en) | 2024-04-02 |
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| CN201911068395.8A Active CN110669540B (en) | 2019-11-05 | 2019-11-05 | Full-sealed environment-friendly recycling control system for tar residues in coal coking industry |
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| CN111672197A (en) * | 2020-04-30 | 2020-09-18 | 临涣焦化股份有限公司 | Multifunctional closed tar residue collecting device and collecting method |
| CN112892752A (en) * | 2021-01-19 | 2021-06-04 | 马鞍山市新能环智能科技有限公司 | Large-block tar residue crushing device in tar mixed liquid |
| CN113046108A (en) * | 2021-03-11 | 2021-06-29 | 武汉轻工大学 | Automatic go up and down to arrange sediment waste gas collection device |
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