阅读说明：本技术 石墨化炉废气处理系统 (Graphitizing furnace exhaust treatment system ) 是由 魏宁 王政 柳文阁 于 2021-09-06 设计创作，主要内容包括：本发明涉及石墨化炉废气处理系统,包括粉尘处理装置以及脱硫装置,粉尘处理装置排气端与脱硫装置进气端贯通连接,粉尘处理装置进气端与石墨化炉废气收集处通过废气总管贯通连接。本发明可对石墨化过程中的废气进行除尘、除硫处理。(The invention relates to a waste gas treatment system of a graphitization furnace, which comprises a dust treatment device and a desulfurization device, wherein the exhaust end of the dust treatment device is communicated with the air inlet end of the desulfurization device, and the air inlet end of the dust treatment device is communicated with a waste gas collection part of the graphitization furnace through a waste gas main pipe. The invention can carry out dust removal and sulfur removal treatment on the waste gas in the graphitization process.)

1. Graphitizing furnace exhaust treatment system, its characterized in that:

comprises a dust treatment device (2) and a desulphurization device, wherein the exhaust end of the dust treatment device (2) is communicated with the air inlet end of the desulphurization device, the air inlet end of the dust treatment device (2) is communicated with the waste gas collection part of the graphitization furnace through a waste gas main pipe (1),

the outlet of the waste gas main pipe (1) is communicated with one end of the axis of the inner cavity of the dust treatment device (2), the other end of the axis of the dust treatment device (2) is communicated with a waste gas exhaust pipe (201),

the blade (206) is arranged in the dust processing device (2), the electrostatic generator (203) is arranged outside the dust processing device (2), the blade (206) is electrically connected with the electrostatic generator (203),

the blade (206) adopts a conductor, and the shell of the dust processing device (2) adopts an insulator.

2. The graphitization furnace off-gas treatment system as claimed in claim 1, wherein:

the shape of the vertical section of the cavity of the dust treatment device (2) is semicircular when the vertical section is at the upper part, the lower part is rectangular, the diameters of the waste gas main pipe (1) and the waste gas exhaust pipe (201) are the same, and the diameters of the waste gas main pipe and the waste gas exhaust pipe are the same as the radius of the semicircular cavity at the upper part of the cavity of the dust treatment device (2), the waste gas main pipe (1) and the waste gas exhaust pipe (201) are communicated with the two ends of the semicircular cavity at the upper part 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 contacted with the inner wall of the dust treatment device (2) and are fixedly connected,

a first rotating shaft (205) is arranged below the partition plate (204), two ends of the first rotating shaft (205) are respectively arranged outside the dust treatment device (2) in a penetrating way, 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 surfaces of all the blades (206) facing the exhaust gas main pipe (1) are positioned on the same vertical plane,

the end surface of the partition plate (204) facing the exhaust gas exhaust pipe (201) is concavely provided with a groove (2043), one end of the groove (2043) is positioned in the middle of the partition plate (204), the other end is arranged at the tail end of the partition plate (204),

the blade (206) is in contact with the end face of the partition plate (204) facing the exhaust gas discharge pipe (201),

a first motor (202) is fixed outside the dust processing device (2), the first motor (202) drives a gear (2051) to rotate,

the static receiving end (2052) is electrically connected with the static generator (203) and the blade (206).

3. The graphitization furnace off-gas treatment system as claimed in claim 2, wherein:

a screw conveyor (3) is arranged outside the dust treatment device (2), a feed inlet of the screw conveyor (3) is arranged inside the dust treatment device (2) in a penetrating way, the feed inlet of the screw conveyor (3) is positioned at the lower end of the clapboard (204),

the discharge hole of the screw conveyor (3) is positioned outside the dust treatment device (2) and is vertically arranged downwards.

4. The graphitization furnace off-gas treatment system as claimed in claim 1, 2 or 3, wherein:

the desulfurization device comprises a shell (4), a cavity is arranged in the shell (4), a row of supporting plates (8) are arranged in the cavity, the row of supporting plates (8) comprise at least three rows of supporting plates (8),

a plurality of through holes are arranged on the supporting plate (8), a containing 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 containing box (9), the height of the containing box (9) is the same as that 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 main pipe (5) in a penetrating way.

5. The graphitization furnace off-gas treatment system as claimed in claim 1, 2 or 3, wherein:

the desulfurization device comprises a shell (4), a cavity is arranged in the shell (4), two rows of supporting plates (8) are rotatably arranged in the cavity, each row of supporting plates (8) comprises at least three rows of supporting plates (8), a connecting block (801) is fixed between 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, 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 containing 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 containing box (9), the height of the containing box (9) is the same as that between the upper and lower adjacent supporting plates (8),

wherein, an air inlet pipe (6) is connected above the containing box (9) at the uppermost end of one row of supporting plates (8) in a run-through way, the air inlet end of the air inlet pipe (6) is arranged outside the shell (4), an exhaust main pipe (5) is connected above the containing box (9) at the uppermost end of the other row of supporting plates (8) in a run-through way,

the lower ends of the two rows of supporting plates (8) are communicated and connected through a pipeline.

6. The graphitization furnace off-gas treatment system as claimed in claim 5, 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 column of supporting plates (8) for installing the containing box (9).

7. The graphitization furnace off-gas treatment system as claimed in claim 5, wherein:

one end, facing the connecting block (801), of the containing box (9) is convexly provided with a clamping strip (901), a clamping groove (8011) is concavely arranged on the connecting block (801), and the clamping strip (901) is clamped inside the clamping groove (8011).

8. The graphitization furnace off-gas treatment system as claimed in claim 6 or 7, wherein:

the exhaust manifold (5) is connected 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 connected with the upper part of the holding box (9) at the uppermost end of the corresponding row of supporting plates (8) through a three-way valve,

the second exhaust branch pipe (502) is connected with two third exhaust branch pipes (503) through a three-way valve, and the two third exhaust branch pipes (503) are respectively connected with the lower ends of the two rows of support plates (8) through a through way.

9. The graphitization furnace off-gas treatment system as claimed in claim 8, wherein:

a gas collecting groove (803) is concavely arranged at the bottom of the supporting plate (8),

a conical cylinder (10) is covered above the containing 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 lowest part 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 communicated with the corresponding conical cylinders (10).

10. The graphitization furnace off-gas treatment system as claimed in claim 9, wherein:

a supporting column (11) is arranged at the center of the bottom of the shell (4), the supporting column (11) and the second rotating shaft (802) are coaxially arranged,

an annular groove (1101) is concavely arranged on the top surface of the supporting column (11), at least two positioning sliding blocks (804) are convexly arranged on the bottom surface of the connecting block (801) at the lowest part, the positioning sliding blocks (804) are arranged inside the annular sliding groove (1101) in a sliding manner,

two insertion holes (1102) are recessed in the top surface of the support column (11), 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 lowermost connecting block (801), an expansion link (1201) of the electromagnet (12) is arranged downwards, and when the electromagnet (12) is powered off, the expansion link (1201) is inserted into one insertion hole (1102) under the pushing of a spring.

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 and opaque solid, has stable chemical properties, is corrosion resistant, and is not easy to react with acid, alkali and other medicaments. It can be used as antiwear agent and lubricant, high-purity graphite as neutron moderator in atomic reactor, crucible, electrode, brush, dry cell, graphite fibre, heat exchanger, cooler, arc furnace, arc lamp and pencil lead.

In the graphite production process, the graphitization furnace is the most important. The graphitization furnace is mainly used for high-temperature treatment of sintering and graphitization of carbon materials, graphitization of PI films, graphitization of heat conduction materials, sintering of carbon fiber ropes, sintering graphitization of carbon fiber filaments, purification of graphite powder, other materials capable of being graphitized in a carbon environment and the like. During the graphitization of the carbonaceous material, the carbonaceous material generates sulfides and some dust, which cannot be discharged directly into the atmosphere and need to be disposed of.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the waste gas treatment system for the graphitization furnace overcomes the defects of the prior art, and can be used for carrying out dust removal and sulfur removal treatment on waste gas in the graphitization process.

The technical scheme adopted by the invention for solving the problems in the prior art is as follows:

graphitizing furnace exhaust-gas treatment system, including dust treatment device and desulphurization unit, dust treatment device exhaust end and desulphurization unit inlet end through connection, dust treatment device inlet end and graphitizing furnace waste gas collection department pass through exhaust manifold through connection.

The outlet of the waste gas main pipe is communicated with one end of the axis of the inner cavity of the dust treatment device, and the other end of the axis of the dust treatment device is communicated with a waste gas exhaust pipe.

The inside blade that is equipped with of dust treatment device, the dust treatment device outside is equipped with electrostatic generator, blade and electrostatic generator electric connection.

The blade adopts a conductor, and the shell of the dust treatment device adopts an insulator.

Preferably, the shape of the vertical section of the cavity of the dust treatment device is semicircular when the vertical section is located above the cavity, the lower part of the cavity of the dust treatment device is rectangular, the diameters of the waste gas main pipe and the waste gas exhaust pipe are the same as the radius of the semicircular part above the cavity of the dust treatment device, and the waste gas main pipe and the waste gas exhaust pipe are communicated with two ends of the semicircular part above the cavity of 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 facing one end of the waste gas main pipe are in contact with the inner wall of the dust treatment device and are fixedly connected with the inner wall of the dust treatment device.

The baffle below is equipped with first pivot, and first pivot both ends are worn to establish respectively to the dust treatment device outside, and first pivot both ends are equipped with gear and static receiving terminal respectively, a plurality of blades and first pivot fixed connection, and all blades are located same perpendicular towards the terminal surface of exhaust gas house steward.

The baffle is equipped with the groove towards the terminal surface of exhaust stack recess, and groove one end is located the baffle intermediate position, and the baffle is terminal is arranged in to the other end.

The vanes are in contact with the end face of the partition plate facing the exhaust gas discharge pipe.

A first motor is fixed outside the dust treatment device and drives the gear to rotate.

The static receiving end is electrically connected with the static generator and the blade.

Preferably, the screw feeder is arranged outside the dust treatment device, a feed port of the screw feeder penetrates through the dust treatment device, the feed port of the screw feeder is positioned at the lower end of the partition plate,

the discharge port of the screw conveyer is positioned outside the dust treatment device and is vertically arranged downwards.

Preferably, the desulphurization device comprises a housing, a cavity is arranged in the housing, a row of support plates are arranged in the cavity, and the row of support plates comprises at least three rows of support plates.

Be equipped with a plurality of perforating hole in the backup pad, support in the backup pad and have the uncovered box that holds of arranging in upper end, hold the box bottom surface and be equipped with a plurality of perforating hole, it is the same with height between two upper and lower adjacent backup pads to hold the height of box.

The top of the shell is connected with an air inlet pipe in a through mode, and the bottom of the shell is connected with an exhaust main pipe in a through mode.

Preferably, desulphurization unit include the shell, the inside cavity that is equipped with of shell, the inside rotation of cavity is equipped with two backup pads, every backup pad contains three at least rows of backup pads, is fixed with the connecting block between two backup pads of same row, the common fixedly connected with second pivot of arranging perpendicularly in all connecting block centers, second pivot top end and second motor output shaft fixed connection.

Be equipped with a plurality of perforating hole in the backup pad, support in the backup pad and have the uncovered box that holds of arranging in upper end, hold the box bottom surface and be equipped with a plurality of perforating hole, it is the same with height between two upper and lower adjacent backup pads to hold the height of box.

An air inlet pipe is connected above the holding box at the uppermost end of one row of supporting plates in a through mode, the air inlet end of the air inlet pipe is arranged outside the shell, and an exhaust main pipe is connected above the holding box at the uppermost end of the other row of supporting plates in a through mode.

The lower ends of the two rows of supporting plates are communicated and connected through a pipeline.

Preferably, the shell is provided with a material changing door, and the height of the material changing door is more than or equal to the height of the whole column of supporting plates for installing the containing boxes.

Preferably, the holding box is convexly provided with a clamping strip towards one end of the connecting block, the connecting block is inwards provided with a clamping groove, and the clamping strip is clamped inside the clamping groove.

Preferably, the exhaust manifold is in through connection with a first exhaust branch pipe and a second exhaust branch pipe through a three-way valve, and the first exhaust branch pipe is in through connection with the upper part of the containing box at the uppermost end of the corresponding column of the supporting plates.

The second exhaust branch pipe is connected with two third exhaust branch pipes through a three-way valve in a penetrating way, and the two third exhaust branch pipes are respectively connected with the lower ends of the two rows of supporting plates in a penetrating way.

Preferably, the gas collecting groove is concavely arranged at the bottom of the supporting plate.

A conical cylinder is covered above the holding box at the uppermost end of each row of supporting plates, and a conical cylinder is covered at the bottom of the supporting plate at the lowermost position of each row of supporting plates.

The first exhaust branch pipe, the third exhaust branch pipe and the air inlet pipe are respectively communicated with the corresponding conical cylinders.

Preferably, a support column is arranged at the center of the bottom of the shell and is coaxially arranged with the second rotating shaft.

The supporting column top surface indent has the annular groove, and the connecting block bottom surface of below is protruding to be equipped with two at least location sliders, and the location slider slides and sets up inside annular spout.

The top surface of the support column is internally provided with two jacks which are symmetrically arranged around the axis of the support column.

An electromagnet is fixed below the bottom surface of the connecting block at the lowest part, a 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 a spring.

Compared with the prior art, the invention has the following beneficial effects:

(1) the device can drain sulfides and dust generated in the process of graphitizing the blank, and can remove the dust at the same time.

(2) The zinc oxide is adopted as a desulfurizer to carry out dry desulfurization, and pollution is not generated in the desulfurization process.

(3) The desulfurizer holds inside the detachable box, and the access door has been seted up to the desulphurization unit side simultaneously, is convenient for change the desulfurizer.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of a system for treating waste gas from a graphitization furnace according to the present invention,

FIG. 2 is a first external view of a dust-treating apparatus in the exhaust gas-treating system of a graphitization furnace of the present invention,

FIG. 3 is a second external view of a dust-treating apparatus in the offgas-treating system of the graphitization furnace of the present invention,

FIG. 4 is a sectional view of a dust-treating apparatus in an offgas-treating system of a graphitization furnace of the present invention,

figure 5 is an enlarged view of a portion of figure 4 at a,

FIG. 6 is a view showing a construction of an impeller drive system of a dust treatment apparatus in a waste gas treatment system of a graphitization furnace according to the present invention,

FIG. 7 is a horizontal sectional view of a dust treatment apparatus in a waste gas treatment system of a graphitization furnace according to the present invention at a partition,

figure 8 is an enlarged view of a portion of figure 7 at B,

FIG. 9 is a view showing the outer appearance of a desulfurization unit in a waste gas treatment system of a graphitization furnace according to the present invention,

FIG. 10 is a schematic view of a waste gas treatment system of a graphitization furnace according to the present invention after the opening of a desulfurization loading replacement charging door,

FIG. 11 is a view showing the construction of the internal equipment of a desulfurization unit in a waste gas treatment system of a graphitization furnace of the present invention,

FIG. 12 is a view showing a structure of a desulfurization site of a desulfurization unit in a waste gas treatment system of a graphitization furnace according to the present invention,

FIG. 13 is a sectional view showing the desulfurization skeleton structure of a desulfurization unit in a waste gas treatment system of a graphitization furnace according to the present invention,

figure 14 is a bottom view of figure 13,

FIG. 15 is a structural view of a holding box in a desulfurization unit in a waste gas treatment system of a graphitization furnace of the present invention,

FIG. 16 is a bottom horizontal sectional view of a desulfurization unit in a waste gas treatment system of a graphitization furnace of the present invention,

figure 17 is an enlarged view of a portion of figure 16 at C,

FIG. 18 is a sectional view at the axis of a desulfurization unit in a waste gas treatment system of a graphitization furnace of the present invention,

fig. 19 is a partial enlarged view of fig. 18 at D.

In the figure: 1-exhaust gas main pipe, 101-exhaust gas branch pipe, 2-dust treatment device, 201-exhaust gas exhaust pipe, 202-first motor, 203-electrostatic generator, 204-partition plate, 2041-exhaust gas cavity, 2042-dust recovery cavity, 2043-groove, 205-first rotating shaft, 2051-gear, 2052-electrostatic receiving end, 206-blade, 3-screw material conveyer, 4-shell, 401-material changing door, 5-exhaust main pipe, 501-first exhaust branch pipe, 502-second exhaust branch pipe, 503-third exhaust branch pipe, 6-air inlet pipe, 7-second motor, 8-support plate, 801-connection block, 8011-clamping groove, 802-second rotating shaft, 803-gas collection groove, 804-positioning slide block, 9-containing box, 901-clamping strip, 10-conical barrel, 11-supporting column, 1101-annular groove, 1102-jack, 12-electromagnet, 1201-telescopic rod and 13-organic sulfur hydrolysis reactor.

Detailed Description

The accompanying drawings are preferred embodiments of the system for treating the exhaust gas from the graphitization furnace, and the present invention will be described in further detail with reference to the accompanying drawings.

The gas in the graphitization furnace is collected in the prior art, and then a plurality of waste gas branch pipes 101 are arranged in the waste gas collection area. All the waste gas branch pipes 101 are communicated with the same waste gas main pipe 1, and a pipeline pump is connected on the waste gas main pipe 1 in series.

The outlet of the exhaust gas main pipe 1 is connected with one end of the axis of the inner cavity of the dust treatment device 2 in a penetrating way, and the other end of the axis of the dust treatment device 2 is connected with an exhaust gas exhaust pipe 201 in a penetrating way.

In this embodiment, the shape of the vertical cross section of the cavity of the dust processing device 2 is semicircular when the cavity is upward, and rectangular when the cavity is downward. The length of the rectangle is the same as the diameter of the semicircle, and the height of the rectangle is the same as the radius of the semicircle. The diameters of the exhaust gas main pipe 1 and the exhaust gas exhaust pipe 201 are the same, and the diameters of the exhaust gas main pipe 1 and the exhaust gas exhaust pipe 201 are the same as the radius of the semicircular cavity above the cavity of the dust treatment device 2, and the exhaust gas main pipe 1 and the exhaust gas exhaust pipe 201 are respectively communicated with two ends of the semicircular cavity above the dust treatment device 2.

A partition plate 204 is arranged between the semicircular cavity and the rectangular cavity of the dust treatment device 2, and the end faces of the left side and the right side of the partition plate 204 and the end face facing one end of the exhaust gas main pipe 1 are in contact with the inner wall of the dust treatment device 2 and are fixedly connected with the inner wall of the dust treatment device. The space above the partition 204 is an exhaust gas chamber 2041, and the space below the partition 204 is a dust recovery chamber 2042.

A first rotating shaft 205 is arranged below the partition plate 204, and two ends of the first rotating shaft 205 penetrate through the dust processing device 2. The two ends of the first rotating shaft 205 are respectively provided with a gear 2051 and a static electricity receiving terminal 2052, or the gear 2051 and the static electricity receiving terminal 2052 are disposed at the same end. The static electricity receiving end 2052 is rotatably coupled to the first rotation shaft 205.

A plurality of vanes 206 are fixedly connected to the first shaft 205, and the end surfaces of all the vanes 206 facing the exhaust manifold 1 are located on the same vertical plane.

The end surface of the partition plate 204 facing the exhaust gas discharge pipe 201 is concavely provided with a groove 2043, one end of the groove 2043 is located at the middle position of the partition plate 204, and the other end is located at the tail end of the partition plate 204.

Blade 206 and baffle 204 are towards the terminal surface contact of exhaust stack 201, and dust processing apparatus 2 outside is fixed with first motor 202, and first motor 202 drives gear 2051 and rotates, and then drives blade 206 rotatory, and when blade 206 was rotatory, the blade 206 that is located the baffle 204 top was rotatory towards groove 2043 direction, therefore the adsorbed dust can not be scraped by baffle 204 on the blade 206. When the blade 206 rotates to the lower part of the partition 204 and then continues to rotate, the blade will contact with the lower end face of the partition 204, the dust on the blade 206 will be 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 housing of the dust processing apparatus 2 and the like are made of insulators, 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 electrified and transmits the static electricity to the blade 206, and the blade 206 adsorbs dust by the principle of electrostatic adsorption and transfers the dust into the dust recovery cavity 2042.

The outside of dust processing device 2 is equipped with the defeated material machine of screw rod 3, and inside the defeated material machine of screw rod 3 feed inlet wore to establish to dust processing device 2, the defeated material machine of screw rod 3 feed inlet was located the baffle 204 lower extreme, and dust retrieves the inside of chamber 2042 promptly. The 3 discharge gates of the screw conveyor are located outside the dust treatment device 2 and are vertically arranged downwards, a butterfly valve is arranged at the discharge gate of the screw conveyor 3, a dust collecting bag or other containers are connected below the discharge gate, and dust discharged from the screw conveyor 3 can be effectively collected to avoid secondary pollution.

Be equipped with solenoid valve and tubing pump on the exhaust gas main 1, inside sulfides such as sulfur dioxide and the dust of graphitizing furnace entered into dust treatment device 2, carried out electrostatic precipitator, and the exhaust gas after the dust removal passes through exhaust gas discharge pipe 201 and discharges inside desulphurization unit. In order to further optimize the dust removal effect, a plurality of dust treatment devices 2 may be connected in series.

The desulfurization device comprises a shell 4, wherein a cavity is arranged inside the shell 4, and the shell 4 is cylindrical.

The mechanism for desulfurization inside the casing 4 can be of two types:

the type one is as follows:

a row of support plates 8 is arranged inside the cavity, the row of support plates 8 comprises at least three rows of support plates 8, and the number of the support plates 8 is five in the embodiment.

Be equipped with a plurality of perforating hole in the backup pad 8, support in the backup pad 8 and have the uncovered box 9 that holds of arranging in upper end, hold the inside packing of box 9 and have the zinc oxide desulfurizer. 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 supporting plate 8 and the lower supporting plate 8 which are adjacent. The horizontal cross-sectional shapes of the supporting plate 8 and the containing box 9 are both circular, and the outer diameters of the supporting plate and the containing box are the same. The edge of the bottom surface of the containing box 9 is contacted with the top surface of the supporting plate 8, no gap exists, and the through holes between the two are communicated with each other. It is ensured that the air flow can only flow between the support plate 8 and the containing box 9 along the through-holes.

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. The intake pipe 6 is connected to the exhaust pipe 201.

Two conical cylinders 10 are arranged at the upper and lower positions in the shell 4, and the conical cylinders 10 are respectively the upper and lower sides 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 with and sealed connection with the edge of the top surface of the containing box 9; the diameter of the top surface of the conical cylinder 10 at the lower end is larger than that of the bottom surface, and the edge of the bottom surface is in contact with and in sealing connection with the edge of the bottom surface 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. Waste gas flows through each box 9 that holds through intake pipe 6 from the top down in proper order, and with the inside zinc oxide contact of box 9, carries out the desulfurization, discharges in the exhaust manifold 5 after the desulfurization.

Type two:

the desulfurization device comprises a cylindrical shell 4, a cavity is arranged in the shell 4, two rows of supporting plates 8 are rotatably arranged in the cavity, each row of supporting plates 8 comprises at least three rows of supporting plates 8, and the two rows of supporting plates 8 are symmetrically arranged around the axis of the shell 4.

The connecting blocks 801 are 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 fixed outside the shell 4.

Be equipped with a plurality of perforating hole in the backup pad 8, support in the backup pad 8 and have the uncovered box 9 that holds of arranging in upper end, hold the inside packing of box 9 and have the zinc oxide desulfurizer, also can cover the one deck detachable filter screen holding box 9 upper end opening part, cover the zinc oxide desulfurizer.

The bottom surface of the containing box 9 is provided with a plurality of through holes which are connected with the through holes on the supporting plate 8 in a penetrating way. The height of the containing box 9 is the same as the height between the upper supporting plate 8 and the lower supporting plate 8, and the horizontal cross sections of the supporting plates 8 and the containing box 9 are circular and have the same outer diameter. The bottom edge of the containing box 9 is in contact with the top surface of the supporting plate 8, and no gap exists, so that the air flow can only flow between the supporting plate 8 and the containing box 9 along the through hole. In order to further increase the sealing performance of the contact part between the containing box 9 and the supporting plate 8, a sealing rubber ring can be added at the contact part between the containing box and the supporting plate, and the rubber ring is fixedly connected with any one of the containing box and the supporting plate.

The conical cylinder 10 for air guide is covered above the containing box 9 at the uppermost end of one row of the supporting plates 8, and the conical cylinder 10 is fixedly connected with the shell 4 and is hermetically connected with the contact surface of the containing 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 in through connection with an air inlet pipe 6, and the air inlet end of the air inlet pipe 6 is arranged outside the shell 4 and is in through connection with the exhaust gas exhaust pipe 201.

A conical cylinder 10 for air guide is covered above the containing box 9 at the uppermost end of the other row of supporting plates 8, and the conical cylinder 10 is fixedly connected with the shell 4 and is hermetically connected with the contact surface of the containing 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 containing boxes 9 on the two rows of the supporting plates 8 in series and in parallel, particularly when replacing the zinc oxide of one row, the two rows of the supporting plates 8 are required to be connected in parallel, and the air path on the row to be replaced with the zinc oxide is required to be cut off. Therefore, the exhaust manifold 5 is connected to a first exhaust branch pipe 501 and a second exhaust branch pipe 502 through a three-way valve, and the first exhaust branch pipe 501 is connected to the tapered cylinder 10 above the uppermost pod 9 of the corresponding one of the columns 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 electrically controlled three-way valves, the three-way valve on the second exhaust branch pipe 502 is adjusted to connect the two third exhaust branch pipes 503 in a through manner, the three-way valve on the exhaust main pipe 5 is adjusted at the same time to connect the exhaust main pipe 5 and the first exhaust branch pipe 501 in a through manner, and at the moment, the two rows of containing boxes 9 are connected in series; adjust the three-way valve on the second exhaust branch pipe 502, make the third exhaust branch pipe 503 and the second exhaust branch pipe 502 through connection that hold the box 9 below that is connected with intake pipe 6, adjust the three-way valve on the exhaust manifold 5 simultaneously, make exhaust manifold 5 and second exhaust branch pipe 502 through connection, at this moment, two are held the box 9 and are parallelly connected, do not hold the box 9 and can change inside zinc oxide in a backup pad 8 that is connected with intake pipe 6.

Because the zinc oxide desulfurizer is a disposable desulfurizer, the zinc oxide needs to be replaced after a period of desulfurization, 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 reloading door 401 is greater than or equal to the height of the array of supporting plates 8 on which the containing box 9 is 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 one row of the containing boxes 9 can be taken out to replace the zinc oxide in the material changing door.

In order to ensure that the containing box 9 does not displace in the rotating process after being installed and is installed in place, a clamping strip 901 is convexly arranged at one end, facing the connecting block 801, of the containing box 9, a clamping groove 8011 is concavely arranged on the connecting block 801, and the clamping strip 901 is clamped inside the clamping groove 8011. A touch switch can be additionally arranged on the inner wall of the clamping groove 8011 opposite to the axis, when the clamping strip 901 is clamped in place, the touch switch can be touched to prompt an operator, and the prompting mode can be sound or light, and preferably light. 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 air flow to flow from one containing box 9 to another containing box 9 with a larger flowing cross section, the bottom of the supporting plate 8 is recessed with an air collecting groove 803, and the air flow flows into the air collecting groove 803 first for diffusion and then flows into the next containing box 9.

A conical cylinder 10 is covered above the containing 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, and the conical cylinder 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 is coaxially arranged with the second rotating shaft 802, the top surface of the support column 11 is recessed with an annular groove 1101, the bottom surface of the connecting block 801 at the lowest part is convexly provided with at least two positioning sliding blocks 804, the positioning sliding blocks 804 are slidably arranged in the annular groove 1101, the sliding blocks 804 are cylindrical, and the outer diameter of the sliding blocks is the same as the width of the annular groove 1101. The slider 804 cooperates with ring channel 1101, can effectively avoid the radial displacement to take place when backup pad 8 is rotatory for backup pad 8 rotates 180, and it can also keep coaxial arrangement with the toper section of thick bamboo 10 at upper and lower both ends, and then does not influence the leakproofness.

The support post 11 has two receptacles 1102 recessed into the top surface, the two receptacles 1102 being symmetrically arranged about the axis of the support post 11.

An electromagnet 12 is fixed below the bottom surface of the lowest connecting block 801, an expansion link 1201 of the electromagnet 12 is arranged downwards, and when the electromagnet 12 is powered off, the expansion link 1201 is inserted into one insertion hole 1102 under the pushing of a spring. The telescopic rod 1201 is connected with the insertion hole 1102 in a matched mode to play a positioning role, when zinc oxide in a certain column needs to be replaced, the electromagnet 12 is electrified, the telescopic rod 1201 retracts, and the telescopic rod is pulled out from the inside of the insertion hole 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 1201 and is in contact with the top surface of the supporting 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 degrees together, the end of the telescopic rod 1201 is just inserted into another insertion hole 1102, so that the motor is prevented from continuing to drive the second rotating shaft 802 to rotate. Thus, the rotation angle of the rotary drum is ensured to be just 180 degrees, and the sealing connection effect between the upper conical drum 10 and the lower conical drum 10 and the connecting plate 8 and the containing box 9 is not influenced.

Be equipped with pressure sensor on shell 4, shell 4 outside still can add a bypass pipeline, bypass pipeline and 4 inner chambers of shell and 6 through connections of intake pipe, be equipped with tubing pump and check valve on the bypass pipeline, the inside gas flow's of check valve direction is from 4 inner chambers of shell to the inside removal of intake pipe 6, if gaseous in backup pad 8, hold the contact site between box 9 and the cone 10 and leak, pressure sensor detects the pressure value and changes, can report to the police, also can open the tubing pump on the bypass pipeline simultaneously.

Desulphurization unit still wraps the outside switch board of shell 4, and all electric elements on the desulphurization unit all with switch board electric connection.

If the exhaust 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 organic sulfur into hydrogen sulfide by adopting the prior art and then perform desulfurization 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 those skilled in the art without departing from the gist of the present invention.