CN113769568B - Graphitization furnace waste gas treatment system - Google Patents
Graphitization furnace waste gas treatment system Download PDFInfo
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- CN113769568B CN113769568B CN202111036290.1A CN202111036290A CN113769568B CN 113769568 B CN113769568 B CN 113769568B CN 202111036290 A CN202111036290 A CN 202111036290A CN 113769568 B CN113769568 B CN 113769568B
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- treatment device
- exhaust
- dust treatment
- pipe
- shell
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- 238000005087 graphitization Methods 0.000 title claims abstract description 28
- 239000002912 waste gas Substances 0.000 title claims abstract description 24
- 239000000428 dust Substances 0.000 claims abstract description 79
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 31
- 230000023556 desulfurization Effects 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims description 32
- 238000005192 partition Methods 0.000 claims description 24
- 230000000149 penetrating effect Effects 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 239000011593 sulfur Substances 0.000 abstract description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 26
- 239000011787 zinc oxide Substances 0.000 description 13
- 230000003009 desulfurizing effect Effects 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 125000001741 organic sulfur group Chemical group 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 150000003568 thioethers Chemical class 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 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
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Carbon And Carbon Compounds (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to a graphitizing furnace waste gas treatment system which comprises a dust treatment device and a desulfurization device, wherein the exhaust end of the dust treatment device is in through connection with the air inlet end of the desulfurization device, and the air inlet end of the dust treatment device is in through connection with a graphitizing furnace waste gas collecting position through a waste gas main pipe. The invention can carry out dust removal and sulfur removal treatment on waste gas in the graphitization process.
Description
Technical Field
The invention belongs to the technical field of graphite production equipment, and particularly relates to a waste gas treatment system of a graphitization furnace.
Background
Graphite is an allotrope of carbon, is a gray black opaque solid, has stable chemical property, is corrosion-resistant, and is not easy to react with agents such as acid, alkali and the like. The high-purity graphite can be used as antiwear agent and lubricant, and used as neutron moderator in atomic reactor, and can also be used for manufacturing crucible, electrode, brush, dry cell, graphite fiber, heat exchanger, cooler, electric arc furnace, arc lamp, pencil lead, etc.
In the graphite production process, the most important is a graphitization furnace. The graphitizing furnace is mainly used for high-temperature treatment of sintering and graphitizing carbon materials, graphitizing PI films, graphitizing heat conducting materials, sintering carbon fiber ropes, sintering and graphitizing carbon fiber filaments, purifying graphite powder, graphitizing other materials in a carbon environment and the like. In graphitizing the carbonaceous material, the carbonaceous material may generate sulfides and some dust, which may not be directly discharged to the atmosphere and may be disposed of.
Disclosure of Invention
The invention aims to solve the technical problems that: the invention overcomes the defects of the prior art and provides a waste gas treatment system of a graphitization furnace, which can remove dust and sulfur from waste gas in the graphitization process.
The invention solves the problems existing in the prior art by adopting the technical scheme that:
The graphitizing furnace waste gas treatment system comprises a dust treatment device and a desulfurization device, wherein the exhaust end of the dust treatment device is in through connection with the air inlet end of the desulfurization device, and the air inlet end of the dust treatment device is in through connection with the graphitizing furnace waste gas collecting position through a waste gas main pipe.
The outlet of the waste gas main pipe is in through connection with one end of the inner cavity axis of the dust treatment device, and the other end of the axis of the dust treatment device is in through connection with a waste gas exhaust pipe.
The dust treatment device is internally provided with blades, the dust treatment device is externally provided with an electrostatic generator, and the blades are electrically connected with the electrostatic generator.
The blade adopts the conductor, and dust treatment device shell adopts the insulator.
Preferably, the vertical section of the dust treatment device cavity is semicircular in upper part and rectangular in lower part, the diameters of the exhaust gas main pipe and the exhaust gas exhaust pipe are the same as the radius of the semicircle above the dust treatment device cavity, and the exhaust gas main pipe and the exhaust gas exhaust pipe are in through connection with two ends of the semicircle above the dust treatment device.
A partition plate is arranged between the semicircular cavity and the rectangular cavity of the dust treatment device, and the end faces of the left side and the right side of the partition plate and the end face of one end of the exhaust manifold are in contact with the inner wall of the dust treatment device and fixedly connected with the inner wall of the dust treatment device.
A first rotating shaft is arranged below the partition plate, two ends of the first rotating shaft respectively penetrate through the dust treatment device, two ends of the first rotating shaft are respectively provided with a gear and an electrostatic receiving end, and a plurality of blades are fixedly connected with the first rotating shaft, and the end surfaces of all the blades facing the exhaust manifold are positioned on the same vertical plane.
The end face of the baffle plate facing the exhaust pipe is concavely provided with a groove, one end of the groove is positioned in the middle of the baffle plate the other end is arranged at the tail end of the clapboard.
The blade is in contact with the end face of the partition plate facing the exhaust pipe.
The dust treatment device is externally fixed with a first motor, and the first motor drives the gear to rotate.
The electrostatic receiving end is electrically connected with the electrostatic generator and the blade.
Preferably, a screw feeder is arranged outside the dust treatment device, a feed inlet of the screw feeder penetrates into the dust treatment device, the feed inlet of the screw feeder is positioned at the lower end of the partition plate,
The discharge hole of the screw conveyor is positioned outside the dust treatment device and is arranged vertically downwards.
Preferably, the desulfurization device comprises a shell, wherein a cavity is arranged in the shell, a row of support plates are arranged in the cavity, and the row of support plates comprise at least three rows of support plates.
The support plate is provided with a plurality of through holes, the support plate is provided with a holding box with an open upper end, the bottom surface of the holding box is provided with a plurality of through holes, and the height of the holding box is the same as that between the upper and lower adjacent support plates.
An air inlet pipe is connected with the top of the shell in a penetrating way, the bottom of the shell is connected with an exhaust manifold.
Preferably, the desulfurizing device comprises a housing, a cavity is formed in the housing, two rows of support plates are rotatably arranged in the cavity, each row of support plates comprises at least three rows of support plates, a connecting block is fixed between two support plates in the same row, the centers of all the connecting blocks are fixedly connected with a second rotating shaft which is vertically arranged, and the tail end above the second rotating shaft is fixedly connected with an output shaft of a second motor.
The support plate is provided with a plurality of through holes, the support plate is provided with a holding box with an open upper end, the bottom surface of the holding box is provided with a plurality of through holes, and the height of the holding box is the same as that between the upper and lower adjacent support plates.
An air inlet pipe is connected above the uppermost holding box of one row of support plates in a through way, the air inlet end of the air inlet pipe is arranged outside the shell, and an exhaust main pipe is connected above the uppermost holding box of the other row of support plates in a through way.
The lower ends of the two rows of support plates are connected in a penetrating way through a pipeline.
Preferably, the shell on be equipped with the reload door, reload door height is greater than or equal to the height of the whole row backup pad of installing the box that holds.
Preferably, the holding box is provided with a clamping strip protruding towards one end of the connecting block, the connecting block is provided with a clamping groove in a concave manner, and the clamping strip is clamped inside the clamping groove.
Preferably, the exhaust manifold is connected with a first exhaust branch pipe and a second exhaust branch pipe through a three-way valve in a penetrating way, and the first exhaust branch pipe is connected with the upper part of the uppermost holding box of the corresponding row of support plates in a penetrating way.
The second exhaust branch pipe is communicated with two third exhaust branch pipes through a three-way valve, and the two third exhaust branch pipes are respectively communicated with the lower ends of the two rows of support plates.
Preferably, the bottom of the supporting plate is concaved with a gas collecting groove.
A conical cylinder is covered above the uppermost containing box of each row of supporting plates, and a conical cylinder is covered at the bottom of the lowermost supporting plate of each row of supporting plates.
The first exhaust branch pipe, the third exhaust branch pipe and the air inlet pipe are respectively connected with the corresponding conical cylinders in a penetrating way.
Preferably, a support column is arranged at the center of the bottom of the shell, and the support column and the second rotating shaft are coaxially arranged.
The top surface of the support column is internally concave with an annular groove, and the bottom surface of the lowest connecting block is convexly provided with at least two positioning sliding blocks which are arranged in the annular groove in a sliding way.
The support column top surface indent has two jacks, and two jacks are arranged around support column axis symmetry.
The bottom of the lowest connecting block is fixed with an electromagnet, the telescopic rod of the electromagnet is arranged downwards, and when the electromagnet is powered off, the telescopic rod is inserted into one jack under the pushing of the spring.
Compared with the prior art, the invention has the beneficial effects that:
(1) Sulfide and dust generated in the blank graphitization process can be drained, and meanwhile, dust can be removed.
(2) Zinc oxide is adopted as a desulfurizing agent for dry desulfurization, and pollution is not generated in the desulfurization process.
(3) The desulfurizing agent is contained in the detachable box, and meanwhile, the side surface of the desulfurizing device is provided with an access door, so that the desulfurizing agent can be replaced conveniently.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of an exhaust gas treatment system of a graphitizing furnace according to the present invention,
FIG. 2 is a first outline view of a dust-treating apparatus in an exhaust gas treatment system of a graphitizing furnace according to the present invention,
FIG. 3 is a second external view of the dust-treating apparatus in the exhaust gas treating system of graphitizing furnace according to the present invention,
FIG. 4 is a cross-sectional view of a dust treatment device in the exhaust gas treatment system of the graphitization furnace according to the present invention,
Figure 5 is an enlarged view of a portion of figure 4 at a,
FIG. 6 is a diagram showing the construction of an impeller transmission system of a dust treatment device in an exhaust gas treatment system of a graphitization furnace according to the present invention,
FIG. 7 is a horizontal sectional view of a partition plate of a dust treatment device in an exhaust gas treatment system of a graphitization furnace according to the present invention,
Figure 8 is an enlarged view of a portion of figure 7 at B,
FIG. 9 is a view showing the outline of a desulfurization device in the exhaust gas treatment system of a graphitization furnace according to the present invention,
FIG. 10 is a schematic view of the exhaust gas treatment system of the graphitization furnace according to the present invention after the opening of the refueling gate of the desulfurization apparatus,
FIG. 11 is a block diagram of internal equipment of a desulfurization device in an exhaust gas treatment system of a graphitizing furnace according to the present invention,
FIG. 12 is a view showing a structure of a desulfurization site of a desulfurization unit in an exhaust gas treatment system of a graphitizing furnace according to the present invention,
FIG. 13 is a sectional view showing the structure of a desulfurization framework of a desulfurization device in an exhaust gas treatment system of a graphitizing furnace according to the present invention,
Figure 14 is a bottom view of figure 13,
FIG. 15 is a block diagram of a holding box in a desulfurizing device in an exhaust gas treatment system of a graphitizing furnace according to the present invention,
FIG. 16 is a horizontal cross-sectional view of the bottom of the desulfurization unit in the exhaust gas treatment system of the graphitization furnace of the present invention,
Figure 17 is an enlarged view of a portion of figure 16 at C,
FIG. 18 is a cross-sectional view of the desulfurization unit in the exhaust gas treatment system of the graphitization furnace according to the present invention,
Fig. 19 is a partial enlarged view of D in fig. 18.
In the figure: 1-exhaust manifold, 101-exhaust manifold, 2-dust treatment device, 201-exhaust pipe, 202-first motor, 203-electrostatic generator, 204-partition, 2041-exhaust chamber, 2042-dust recovery chamber, 2043-slot, 205-first spindle, 2051-gear, 2052-electrostatic receiving end, 206-blade, 3-screw feeder, 4-housing, 401-charging door, 5-exhaust manifold, 501-first exhaust manifold, 502-second exhaust manifold, 503-third exhaust manifold, 6-intake pipe, 7-second motor, 8-support plate, 801-connection block, 8011-slot, 802-second spindle, 803-gas collecting slot, 804-positioning slide, 9-holding box, 901-clip, 10-conical cylinder, 11-support column, 1101-annular slot, 1102-jack, 12-electromagnet, 1201-telescopic link, 13-organosulfur hydrolysis reactor.
Detailed Description
The drawings are preferred embodiments of the graphitization furnace exhaust gas treatment system, and the present invention will be described in further detail with reference to the drawings.
The gas inside the graphitizing furnace is collected in the prior art, and then a plurality of waste gas branch pipes 101 are arranged inside the waste gas collecting area. All the exhaust branch pipes 101 are connected with the same exhaust main pipe 1 in a penetrating way, and a pipeline pump is connected in series on the exhaust main pipe 1.
The outlet of the exhaust manifold 1 is connected with one end of the inner cavity axis of the dust treatment device 2 in a penetrating way, and the other end of the dust treatment device 2 axis is connected with an exhaust pipe 201 in a penetrating way.
In this embodiment, the vertical section of the cavity of the dust treatment device 2 is semicircular at the upper part and rectangular at the lower part. The rectangular length is the same as the semicircular diameter, and the rectangular height is the same as the semicircular radius. The diameters of the exhaust manifold 1 and the exhaust pipe 201 are the same and the radius of the semicircle above the cavity of the dust treatment device 2 is the same, and the exhaust manifold 1 and the exhaust pipe 201 are respectively connected with the two ends of the semicircle above the dust treatment device 2 in a penetrating way.
A partition plate 204 is arranged between the semicircular cavity and the rectangular cavity of the dust treatment device 2, and the end surfaces of the left side and the right side of the partition plate 204 and the end surface facing one end of the exhaust manifold 1 are in contact with and fixedly connected with the inner wall of the dust treatment device 2. The space above the partition 204 is the exhaust chamber 2041 and the space below the partition 204 is the dust recovery chamber 2042.
A first rotating shaft 205 is arranged below the partition 204, and two ends of the first rotating shaft 205 are respectively penetrated outside the dust treatment device 2. The two ends of the first rotating shaft 205 are respectively provided with a gear 2051 and an electrostatic receiving end 2052, or the gear 2051 and the electrostatic receiving end 2052 are disposed at the same end. The electrostatic receiving end 2052 is rotatably connected to the first shaft 205.
A plurality of blades 206 are fixedly connected with the first rotating shaft 205, and the end surfaces of all the blades 206 facing the exhaust manifold 1 are positioned on the same vertical plane.
The end face of the partition 204 facing the exhaust pipe 201 is concavely provided with a groove 2043, one end of the groove 2043 is located in the middle of the partition 204, and the other end is located at the end of the partition 204.
The blade 206 contacts with the end face of the partition 204 facing the exhaust pipe 201, the first motor 202 is fixed outside the dust treatment device 2, the first motor 202 drives the gear 2051 to rotate, and then drives the blade 206 to rotate, when the blade 206 rotates, the blade 206 above the partition 204 rotates towards the direction of the groove 2043, and therefore dust adsorbed on the blade 206 cannot be scraped by the partition 204. When the blades 206 rotate below the partition 204 and then continue to rotate, the blades are in contact with the lower end surface of the partition 204, dust on the blades 206 is scraped clean by the partition 204, and then the dust falls into the dust recycling cavity 2042.
The electrostatic receiving end 2052 is electrically connected to the electrostatic generator 203 and the blade 206. The dust treatment device 2 has an insulator for the housing, etc., and only the blade 206, the electrostatic receiving end 2052, and the connection means between the blade 206 and the electrostatic receiving end 2052 are conductors. The electrostatic generator 203 generates static electricity after being energized, and transfers the static electricity to the blade 206, and the blade 206 adsorbs dust by the principle of electrostatic adsorption, and transfers the dust to the inside of the dust recovery chamber 2042.
The outside of the dust treatment device 2 is provided with a screw conveyer 3, a feed inlet of the screw conveyer 3 penetrates into the dust treatment device 2, and the feed inlet of the screw conveyer 3 is positioned at the lower end of the partition 204, namely, the inside of the dust recovery cavity 2042. The discharge hole of the screw conveyer 3 is positioned outside the dust treatment device 2 and is vertically downwards arranged, a butterfly valve is arranged at the discharge hole of the screw conveyer 3, a cloth bag or other containing containers for dust collection are connected below the discharge hole, and the dust discharged by the screw conveyer 3 can be effectively collected, so that secondary pollution is avoided.
The exhaust manifold 1 is provided with an electromagnetic valve and a pipeline pump, sulfur dioxide and other sulfides and dust in the graphitization furnace enter the dust treatment device 2 to carry out electrostatic dust removal, and the dust-removed exhaust gas is discharged through the exhaust pipe 201 and is discharged into the desulfurization device. In order to further optimize the dust removal effect, a plurality of dust-handling apparatuses 2 can be connected in series.
The desulfurization device comprises a shell 4, wherein a cavity is formed in the shell 4, and the shell 4 is cylindrical in shape.
The mechanism for desulfurization inside the housing 4 can be of two types:
type one:
A row of support plates 8 is arranged in the cavity, and the row of support plates 8 comprises at least three rows of support plates 8, in this embodiment, the number of support plates 8 is five.
A plurality of through holes are formed in the supporting plate 8, a containing box 9 with an open upper end is supported on the supporting plate 8, and zinc oxide desulfurizing agent is filled in the containing box 9. The bottom surface of the containing box 9 is provided with a plurality of through holes, and the height of the containing box 9 is the same as the height between the upper and lower adjacent support plates 8. The horizontal cross-sectional shapes of the supporting plate 8 and the holding box 9 are all round, and the outer diameters are the same. The bottom edge of the holding box 9 is in contact with the top surface of the supporting plate 8, no gap exists, and the through holes between the bottom edge and the supporting plate are communicated with each other. Ensuring that the air flow can only flow along the through-holes between the support plate 8 and the containing box 9.
The top of the shell 4 is communicated an air inlet pipe 6 is connected with the air inlet pipe, an exhaust manifold 5 is connected to the bottom of the housing 4. The intake pipe 6 is connected to the exhaust pipe 201.
Two conical cylinders 10 are arranged at the upper and lower positions inside the shell 4, and the conical cylinders 10 are respectively arranged at the upper side and the lower side of a row of supporting plates 8. The diameter of the top surface of the conical cylinder 10 at the upper end is smaller than that of the bottom surface, and the edge of the bottom surface is in contact and sealed connection with the edge of the top surface of the containing box 9; the diameter of the top surface of the cone 10 at the lower end is larger than that of the bottom surface, the bottom edge is in contact with and sealed connection with the bottom edge of the supporting plate 8.
The top of the upper end conical tube 10 is communicated with the air inlet pipe 6, and the bottom of the lower end conical tube 10 is communicated with the exhaust manifold 5. The waste gas flows through each containing box 9 from top to bottom through the air inlet pipe 6, contacts with zinc oxide in the containing box 9, carries out desulfurization, and is discharged from the exhaust manifold 5 after desulfurization.
Type two:
The desulfurization device comprises a cylindrical shell 4, a cavity is formed in the shell 4, two rows of support plates 8 are rotatably arranged in the cavity, each row of support plates 8 comprises at least three rows of support plates 8, and the two rows of support plates 8 are symmetrically arranged around the axis of the shell 4.
A connecting block 801 is fixed between the two supporting plates 8 in the same row, the centers of all the connecting blocks 801 are fixedly connected with a second rotating shaft 802 which is vertically arranged, and the second rotating shaft 802 is coaxially arranged with the axis of the shell 4. The upper end of the second rotating shaft 802 is fixedly connected with the output shaft of the second motor 7, and the second motor 7 can be arranged inside the shell 4 or can be fixed outside the shell 4.
Be equipped with a plurality of through-hole on the backup pad 8, support on the backup pad 8 and hold box 9 that upper end is open to be arranged, hold box 9 inside and fill and have zinc oxide desulfurizer, also can cover the detachable filter screen of one deck at the upper end opening part that holds box 9, cover zinc oxide desulfurizer.
The bottom surface of the holding box 9 is provided with a plurality of through holes which are in through connection with the through holes on the supporting plate 8. The height of the holding box 9 is the same as the height between the upper and lower adjacent supporting plates 8, the horizontal section shapes of the supporting plates 8 and the holding box 9 are circular, and the outer diameters are the same. The bottom edge of the holding box 9 is in contact with the top surface of the support plate 8 and has no gap, ensuring that air flow can only flow between the support plate 8 and the holding box 9 along the through holes. In order to further increase the tightness of the contact part between the holding box 9 and the supporting plate 8, a sealing rubber ring can be additionally arranged at the contact part of the holding box 9 and the supporting plate, and the rubber ring is fixedly connected with any one of the two parts.
A conical cylinder 10 for air guide is covered above the holding box 9 at the uppermost end of one row of supporting plates 8, and the conical cylinder 10 is fixedly connected with the shell 4 and is in sealing connection with the contact surface of the holding box 9. The diameter of the top surface of the conical cylinder 10 is smaller than that of the bottom surface, the top surface of the conical cylinder 10 is connected with an air inlet pipe 6 in a penetrating mode, and the air inlet end of the air inlet pipe 6 is arranged outside the shell 4 and connected with the exhaust pipe 201 in a penetrating mode.
The upper part of the holding box 9 at the uppermost end of the other row of supporting plates 8 is covered with a conical cylinder 10 for air guide, and the conical cylinder 10 is fixedly connected with the shell 4 and is in sealing connection with the contact surface of the holding box 9. The diameter of the top surface of the conical cylinder 10 is smaller than that of the bottom surface, and the top surface of the conical cylinder 10 is connected with an exhaust manifold 5 in a penetrating way.
In order to replace the cassettes 9 on the two rows of support plates 8 in series or in parallel, it is necessary to connect the two rows of support plates 8 in parallel and cut off the air passage on the row on which zinc oxide is to be replaced, especially when zinc oxide on a row is to be replaced. Therefore, the exhaust manifold 5 is connected to the first exhaust branch pipe 501 and the second exhaust branch pipe 502 through three-way valves, and the first exhaust branch pipe 501 is connected to the conical cylinder 10 above the uppermost storage case 9 of the corresponding row of support plates 8.
The second exhaust branch pipe 502 is connected to two third exhaust branch pipes 503 through a three-way valve, and the two third exhaust branch pipes 503 are connected to the tapered cylinders 10 at the lower ends of the two rows of support plates 8.
The two three-way valves are all electrically controlled three-way valves, the three-way valves on the second exhaust branch pipe 502 are regulated, the two third exhaust branch pipes 503 are connected in a penetrating way, and the three-way valves on the exhaust manifold 5 are regulated, so that the exhaust manifold 5 is connected in a penetrating way with the first exhaust branch pipe 501, and at the moment, the two rows of storage boxes 9 are connected in series; the three-way valve on the second exhaust branch pipe 502 is adjusted to enable the third exhaust branch pipe 503 below the holding boxes 9 connected with the air inlet pipe 6 to be in through connection with the second exhaust branch pipe 502, and the three-way valve on the exhaust manifold 5 is adjusted to enable the exhaust manifold 5 to be in through connection with the second exhaust branch pipe 502, at the moment, the two rows of holding boxes 9 are connected in parallel, and the holding boxes 9 on the row of support plates 8 which are not connected with the air inlet pipe 6 can be replaced with zinc oxide.
Because the zinc oxide desulfurizing agent is a disposable desulfurizing agent, the zinc oxide needs to be replaced after desulfurization for a period of time, and in order to facilitate the replacement of the zinc oxide, the shell 4 is provided with a material changing door 401, and the material changing door 401 corresponds to a row of containing boxes 9 which are not connected with the air inlet pipe 6.
The height of the material changing door 401 is equal to or greater than the height of the entire row of support plates 8 on which the holding cassettes 9 are mounted. The material changing door 401 is fixedly connected with the shell 4 through bolts, and after the material changing door 401 is opened, the corresponding row of the containing boxes 9 can be taken out to replace zinc oxide in the containing boxes.
In order to ensure that the accommodating box 9 is not displaced in the rotating process after being installed, and is installed in place at the same time, one end of the accommodating box 9 facing the connecting block 801 is convexly provided with a clamping strip 901, the connecting block 801 is internally provided with a clamping groove 8011, and the clamping strip 901 is clamped in the clamping groove 8011. The inner wall of the clamping groove 8011 opposite to the axis can be provided with a touch switch, when the clamping strip 901 is clamped in place, the touch switch can be touched to prompt an operator, the prompting mode can be sound or lamplight, and lamplight is preferably adopted. The control lamp is arranged on the top surface or the outer wall of the shell 4, after the clamping strip 901 is separated from the touch switch, the control lamp is red, and when the clamping strip 901 is clamped in place, the control lamp is green.
In order to facilitate the larger cross-sectional dimension of the air flow flowing from one holding box 9 to another holding box 9, the bottom of the supporting plate 8 is concave with an air collecting groove 803, and the air flow flows into the air collecting groove 803 for diffusion and then flows into the next holding box 9.
A conical cylinder 10 is covered above the holding box 9 at the uppermost end of each row of support plates 8, a conical cylinder 10 is covered at the bottom of the support plate 8 at the lowermost end of each row of support plates 8, and the conical cylinders 10 can effectively reduce the flow resistance of air flow.
The center of the bottom of the shell 4 is provided with a support column 11, the support column 11 and the second rotating shaft 802 are coaxially arranged, the top surface of the support column 11 is inwards concave with an annular groove 1101, the bottom surface of the lowest connecting block 801 is convexly provided with at least two positioning sliding blocks 804, the positioning sliding blocks 804 are slidably arranged in the annular groove 1101, and the sliding blocks 804 are cylindrical, and the outer diameter of the sliding blocks 804 is the same as the width of the annular groove 1101. The sliding block 804 is matched with the annular groove 1101, so that radial displacement generated when the supporting plate 8 rotates can be effectively avoided, the supporting plate 8 rotates 180 degrees, and the sliding block and the conical cylinders 10 at the upper end and the lower end can be coaxially arranged, so that tightness is not affected.
The top surface of the support column 11 is recessed with two insertion holes 1102, and the two insertion holes 1102 are symmetrically arranged around the axis of the support column 11.
An electromagnet 12 is fixed below the bottom surface of the lowest connecting block 801, a telescopic rod 1201 of the electromagnet 12 is arranged downwards, and when the electromagnet 12 is powered off, the telescopic rod 1201 is inserted into one jack 1102 under the pushing of a spring. The telescopic rod 1201 is connected with the jack 1102 in a matched mode to play a role in positioning, when a certain column of zinc oxide needs to be replaced, the electromagnet 12 is electrified, the telescopic rod 1201 is retracted, and the telescopic rod 1201 is pulled out from the inside of the jack 1102. Then the second motor 7 drives the second rotating shaft 802 to rotate 30-150 degrees, then the electromagnet 12 is powered off, and the telescopic rod 1201 moves downwards under the action of a spring carried by the telescopic rod and contacts with the top surface of the support column 11. The second motor 7 continues to drive the second rotating shaft 802 to rotate, and when the second rotating shaft 802 rotates 180 ° together, the tail end of the telescopic rod 1201 is just inserted into the other jack 1102, so that the motor is prevented from continuing to drive the second rotating shaft 802 to rotate. This further ensures that the angle of rotation is exactly 180 °, without affecting the sealing connection between the upper and lower conical cylinders 10 and the connecting plate 8 and the receiving box 9.
The shell 4 is provided with a pressure sensor, the outer part of the shell 4 can be additionally provided with a bypass pipeline, the bypass pipeline is in through connection with the inner cavity of the shell 4 and the air inlet pipe 6, the bypass pipeline is provided with a pipeline pump and a one-way valve, the air flowing direction in the one-way valve is from the inner cavity of the shell 4 to the inner part of the air inlet pipe 6, if the air leaks at the contact part among the supporting plate 8, the containing box 9 and the conical barrel 10, the pressure sensor detects the pressure value change, the alarm can be given, and the pipeline pump on the bypass pipeline can be started.
The desulfurization device further comprises a control cabinet outside the shell 4, and all electrical elements on the desulfurization device are electrically connected with the control cabinet.
If the waste gas generated by graphitization contains organic sulfur, an organic sulfur hydrolysis reactor 13 is connected in series between the dust treatment device 2 and the desulfurization device, and the organic sulfur hydrolysis reactor can hydrolyze the organic sulfur into hydrogen sulfide by adopting the prior art, and then the hydrogen sulfide is desulfurized by the desulfurization device.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (9)
1. Graphitization stove exhaust treatment system, its characterized in that:
Comprises a dust treatment device (2) and a desulfurization device, wherein the exhaust end of the dust treatment device (2) is in through connection with the air inlet end of the desulfurization device, the air inlet end of the dust treatment device (2) is in through connection with the waste gas collecting position of the graphitization furnace through a waste gas main pipe (1),
The outlet of the waste gas main pipe (1) is in through connection with one end of the inner cavity axis of the dust treatment device (2), the other end of the inner cavity axis of the dust treatment device (2) is in through connection with a waste gas exhaust pipe (201),
The dust treatment device (2) is internally provided with a blade (206), the dust treatment device (2) is externally provided with an electrostatic generator (203), the blade (206) is electrically connected with the electrostatic generator (203),
The blade (206) adopts a conductor, the shell of the dust treatment device (2) adopts an insulator,
The vertical section of the cavity of the dust treatment device (2) is semicircular at the upper part and rectangular at the lower part, the diameters of the exhaust manifold (1) and the exhaust pipe (201) are the same and the radius of the semicircle above the cavity of the dust treatment device (2) is the same, the exhaust manifold (1) and the exhaust pipe (201) are in through connection with the two ends of the semicircle above the cavity of the dust treatment device (2),
A baffle plate (204) is arranged between the semicircular cavity and the rectangular cavity of the dust treatment device (2), the end surfaces of the left side and the right side of the baffle plate (204) and the end surface facing one end of the waste gas main pipe (1) are in contact with and fixedly connected with the inner wall of the dust treatment device (2),
A first rotating shaft (205) is arranged below the partition plate (204), two ends of the first rotating shaft (205) are respectively penetrated outside the dust treatment device (2), two ends of the first rotating shaft (205) are respectively provided with a gear (2051) and an electrostatic receiving end (2052), a plurality of blades (206) are fixedly connected with the first rotating shaft (205), the end faces of all the blades (206) facing the waste gas main pipe (1) are positioned on the same vertical plane,
A groove (2043) is concavely arranged on the end face of the baffle plate (204) facing the exhaust pipe (201), one end of the groove (2043) is positioned in the middle of the baffle plate (204), the other end is positioned at the tail end of the baffle plate (204),
The blades (206) are in contact with the end face of the partition plate (204) facing the exhaust pipe (201),
The dust treatment device (2) is externally fixed with a first motor (202), the first motor (202) drives a gear (2051) to rotate,
The static electricity receiving end (2052) is electrically connected with the static electricity generator (203) and the blade (206).
2. The graphitization furnace exhaust gas treatment system according to claim 1, wherein:
the outside of the dust treatment device (2) is provided with a screw conveyer (3), a feed inlet of the screw conveyer (3) is penetrated into the dust treatment device (2), the feed inlet of the screw conveyer (3) is positioned at the lower end of the baffle plate (204),
The discharge hole of the screw conveyer (3) is positioned outside the dust treatment device (2) and is arranged vertically downwards.
3. The graphitization furnace exhaust gas treatment system according to claim 1 or 2, wherein:
The desulfurization device comprises a shell (4), a cavity is arranged in the shell (4), a row of support plates (8) are arranged in the cavity, the row of support plates (8) comprise at least three rows of support plates (8),
A plurality of through holes are arranged on the supporting plate (8), a holding box (9) with an open upper end is supported on the supporting plate (8), a plurality of through holes are arranged on the bottom surface of the holding box (9), the height of the holding box (9) is the same as the height between the upper and lower adjacent supporting plates (8),
The top of the shell (4) is connected with an air inlet pipe (6) in a penetrating way, and the bottom of the shell (4) is connected with an exhaust manifold (5) in a penetrating way.
4. The graphitization furnace exhaust gas treatment system according to claim 1 or 2, wherein:
the desulfurization device comprises a shell (4), a cavity is arranged in the shell (4), two rows of support plates (8) are rotationally arranged in the cavity, each row of support plates (8) comprises at least three rows of support plates (8), a connecting block (801) is fixed between the two support plates (8) in the same row, the centers of all the connecting blocks (801) are fixedly connected with a second rotating shaft (802) which is vertically arranged, the tail end above the second rotating shaft (802) is fixedly connected with an output shaft of a second motor (7),
A plurality of through holes are arranged on the supporting plate (8), a holding box (9) with an open upper end is supported on the supporting plate (8), a plurality of through holes are arranged on the bottom surface of the holding box (9), the height of the holding box (9) is the same as the height between the upper and lower adjacent supporting plates (8),
Wherein the upper part of the holding box (9) at the uppermost end of one row of supporting plates (8) is connected with an air inlet pipe (6) in a penetrating way, the air inlet end of the air inlet pipe (6) is arranged outside the shell (4), the upper part of the holding box (9) at the uppermost end of the other row of supporting plates (8) is connected with an exhaust main pipe (5) in a penetrating way,
The lower ends of the two rows of support plates (8) are connected in a penetrating way through a pipeline.
5. The graphitization furnace exhaust gas treatment system according to claim 4, wherein:
The shell (4) is provided with a material changing door (401), and the height of the material changing door (401) is more than or equal to the height of the whole row of supporting plates (8) on which the containing boxes (9) are arranged.
6. The graphitization furnace exhaust gas treatment system according to claim 4, wherein:
the storage box (9) is provided with a clamping strip (901) in a protruding mode at one end, facing the connecting block (801), of the connecting block (801), a clamping groove (8011) is formed in the connecting block (801) in an inwards concave mode, and the clamping strip (901) is clamped inside the clamping groove (8011).
7. The graphitization furnace exhaust gas treatment system according to claim 5 or 6, wherein:
The exhaust manifold (5) is communicated with a first exhaust branch pipe (501) and a second exhaust branch pipe (502) through a three-way valve, the first exhaust branch pipe (501) is communicated with the upper part of the holding box (9) at the uppermost end of the corresponding array of support plates (8),
The second exhaust branch pipe (502) is communicated with two third exhaust branch pipes (503) through a three-way valve, and the two third exhaust branch pipes (503) are respectively communicated with the lower ends of the two rows of support plates (8).
8. The graphitization furnace exhaust gas treatment system according to claim 7, wherein:
The bottom of the supporting plate (8) is internally provided with a gas collecting groove (803),
A conical cylinder (10) is covered above the holding box (9) at the uppermost end of each row of supporting plates (8), a conical cylinder (10) is covered at the bottom of the supporting plate (8) at the lowermost end of each row of supporting plates (8),
The first exhaust branch pipe (501), the third exhaust branch pipe (503) and the air inlet pipe (6) are respectively connected with the corresponding conical cylinder (10) in a penetrating way.
9. The graphitization furnace exhaust gas treatment system according to claim 8, wherein:
The center of the bottom of the shell (4) is provided with a support column (11), the support column (11) and the second rotating shaft (802) are coaxially arranged,
An annular groove (1101) is concaved in the top surface of the support column (11), at least two positioning slide blocks (804) are convexly arranged on the bottom surface of the lowest connecting block (801), the positioning slide blocks (804) are slidably arranged in the annular groove (1101),
Two jacks (1102) are concavely arranged on the top surface of the support column (11), the two jacks (1102) are symmetrically arranged around the axis of the support column (11),
An electromagnet (12) is fixed below the bottom surface of the lowest connecting block (801), a telescopic rod (1201) of the electromagnet (12) is arranged downwards, and when the electromagnet (12) is powered off, the telescopic rod (1201) is inserted into one jack (1102) under the pushing of a spring.
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| JP2006029318A (en) * | 2005-03-11 | 2006-02-02 | Shp:Kk | Exhaust emission control device for diesel engine, and method thereof |
| EP2792406A1 (en) * | 2006-01-30 | 2014-10-22 | Advanced Technology Materials, Inc. | A fluid storage and dispensing apparatus |
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| CN205392741U (en) * | 2016-02-24 | 2016-07-27 | 天津天诚拓源科技发展有限公司 | Novel dust collector |
| CN208990535U (en) * | 2018-08-22 | 2019-06-18 | 北京天中方环保科技有限公司 | A kind of combination of high concentration three organic waste gas treatment equipment |
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| CN211159141U (en) * | 2019-12-10 | 2020-08-04 | 惠州市正汰热能科技有限公司 | Dust device is used in processing of living beings pellet fuel |
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| KR20120067774A (en) * | 2010-12-16 | 2012-06-26 | 주식회사 포스코 | Sulfer compounds removing apparatus |
| CN103406016A (en) * | 2013-08-16 | 2013-11-27 | 泗阳东方碳素制品有限公司 | Waste gas treatment system of graphitization furnace |
| CN111545348A (en) * | 2020-05-13 | 2020-08-18 | 卢兰 | Electrostatic dust remover for construction site |
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